Patent Publication Number: US-11026496-B2

Title: Mascara comb

Description:
TECHNICAL FIELD 
     The present invention relates to a mascara comb for applying a mascara liquid to eyelashes and combing eyelashes. 
     BACKGROUND ART 
     It is important when a user is applying viscous mascara liquid to the eyelashes a large amount of mascara liquid can be applied and lumps (hereinafter referred to as “lump”) of mascara do not adhere to the eyelashes in small clumps. 
     For example, there has been proposed a mascara brush having an application brush including multiple hairs and an adjustment brush formed of a tooth-shaped comb, which is configured to apply mascara liquid to eyelashes with the application brush and comb the eyelashes with the adjustment brush (Patent Document 1). 
     CITATION LIST 
     Patent Literature 
     [Patent Document 1] Japanese Patent No. 4260674 
     SUMMARY OF INVENTION 
     Technical Problem 
     It is also important when a user is applying mascara liquid to the eyelashes to apply the mascara liquid quickly. However, with the above-described mascara brush, there is a problem in that the step of applying the mascara liquid to the eyelashes with the application brush, and a plurality of steps of flipping the direction of the application brush which had been directed toward the direction of the eyelashes so as to be opposite the direction of the eyelashes, directing the adjustment brush to the direction of the eyelashes, and brushing the eyelashes with the adjustment brush must be performed separately. 
     Based on the above, the present invention provides a mascara comb with which a user can quickly apply mascara liquid to eyelashes without forming clumps. 
     Solution to Problem 
     A first invention is a mascara comb which is a mascara comb for applying mascara liquid to user&#39;s eyelashes and combing the eyelashes, and having an upper surface formed as a convex-shaped curved surface having a curvature radius equal to or greater than a predetermined curvature radius, and a lower surface having a curvature radius smaller than the curvature radius of the upper surface; wherein on the upper surface, a plurality of protrusion elements are disposed so as to form multiple rhombus structures; when a deviation distance from the upper surface is given as a height, a cross-section of each of the protrusion elements in a direction orthogonal to the height direction forms a circle; each of the rhombus structures is configured so as to form a rhombus with a diagonal line in an axial direction of the comb portion longer than a diagonal line in an orthogonal direction orthogonal thereto, and a predetermined gap, which is a linear gap extending in the orthogonal direction, for applying the mascara liquid to the eyelashes while combing the eyelashes; further, the rhombus structures are a velocity adjustment portion functioning as a velocity adjustment mechanism for making the velocity with which the mascara liquid flows in the axial direction slower than the velocity with which the mascara liquid flows in the orthogonal direction; and in the upper surface, the inside of the rhombus structures is a holding portion having a function of holding the mascara liquid. 
     According to the configuration of the first invention, since the upper surface of the comb portion has a radius of curvature equal to or greater than a predetermined radius of curvature, the mascara liquid tends to stay on the upper surface when the mascara comb is pulled out from the container storing the mascara liquid, and further, through rhombus structures formed by a plurality of protrusion elements, the movement of the mascara liquid in the axial direction is restricted, and the mascara liquid is held inside the rhombus structures. While the mascara comb is used to comb the user&#39;s eyelashes in a direction orthogonal to the axial direction (hereinafter referred to as “orthogonal direction”), according to the configuration of the first invention, since a plurality of linear gaps extending in the orthogonal direction are formed between protrusion elements, the mascara liquid is applied to the tip of the eyelashes and combed by having the eyelashes pass through those gaps. Here, the rhombus structure is a rhombus whose diagonal line in the axial direction of the comb portion is longer than the diagonal line in the orthogonal direction. As a result, since the distance between the protrusion elements in the orthogonal direction becomes shorter than the distance between the protrusion elements in the axial direction, the movement of the mascara liquid in the axial direction can be effectively limited. In addition, this means that the distance between the protrusion elements in the axial direction is longer than the distance between the protrusion elements in the orthogonal direction, and through this, it is possible to form a predetermined gap for applying the mascara liquid to the eyelashes while combing the eyelashes. In other words, according to the mascara comb of the first invention, through a continuous operation, the mascara liquid held on the upper surface of the comb portion is applied to the eyelashes, and then with the protrusion elements formed on the upper surface of the same comb portion, it is possible to comb the eyelashes while applying the mascara liquid to the eyelashes in their entirety. 
     A second invention is the mascara comb according to the configuration of the first invention, wherein a distance between the centers of the cross-sections of two of the protrusion elements adjacent in the orthogonal direction is the same regarding all of the protrusion elements, the protrusion element is formed in a shape which decreases in diameter from the root portion as it approaches the apex vicinity portion; further, the protrusion element is configured such that the height of the protrusion element increases, and the reduction rate of the diameter of the protrusion elements decreases from the center portion toward the sides in the axial direction; and a plurality of the protrusion elements configure a velocity tapering mechanism for gradually reducing the velocity with which the mascara liquid flows in the axial direction. 
     When mascara liquid is located on the upper surface, there is a height from the upper surface to the liquid surface. In other words, not only the upper surface but also the protrusion element is an element which defines the ease and difficulty of flow of the mascara liquid. If the surface roughness of the protrusion elements is the same, the shorter the distance between the outer peripheries of the protrusion elements, the slower the velocity at which the mascara liquid flows between the protrusion elements. According to the configuration of the second invention, since the plurality of protrusion elements are formed so that the diameter reduction rate decreases toward the sides, the velocity at which the mascara liquid flows between the plurality of protrusion elements is slow. For this reason, when the mascara comb is pulled out from the container storing the mascara liquid, since the movement velocity of the mascara liquid to the sides is relatively slow, the mascara liquid tends to stay near the center of the upper surface. In addition, when the mascara liquid is applied, while the height of the protrusion element near the center portion is relatively low, since the mascara liquid tends to flow relatively easily between the protrusion elements, the mascara liquid can be effectively applied to eyelashes which come into contact with the protrusion elements near the center portion. 
     A third invention is a mascara comb according to the configuration of the second invention, wherein a plurality of the protrusion elements include a primary protrusion element and a secondary protrusion element having a cross-sectional diameter larger than the cross-sectional diameter of the primary protrusion element; the primary protrusion element and the secondary protrusion element are disposed on the upper surface such that a region where a plurality of the primary protrusion elements are disposed is sandwiched by a secondary protrusion element row configured by disposing the secondary protrusion elements; and a region sandwiched by the secondary protrusion element row is a velocity decreasing portion having a function of reducing the velocity with which the mascara liquid flows in the axial direction. 
     According to the configuration of the third invention, when the mascara comb is pulled out from the container storing the mascara liquid, the movement of the mascara liquid in the axial direction of the comb portion is greatly restricted by the secondary protrusion element row configured by the secondary protrusion elements having a relatively large cross-sectional diameter and the mascara liquid is mainly held in the region where the primary protrusion elements are disposed. Since the primary protrusion element has a smaller cross-sectional diameter than the secondary protrusion element, per unit area of the region exposed without the protrusion elements (hereinafter referred to as “exposed area”) is relatively large. For this reason, a relatively large amount of mascara liquid is held in the primary region. The mascara liquid held in the primary region, the movement of the shaft portion in the axial direction is restricted by the primary protrusion elements, and the movement of the mascara liquid out of the primary region is restricted by the secondary protrusion element row. 
     A fourth invention is the mascara comb according to the configuration of the third invention, wherein the diameter reduction rate of the cross-sectional diameter of the secondary protrusion elements is defined as smaller than the diameter reduction rate of the cross-sectional diameter of the primary protrusion elements. 
     According to the configuration of the fourth invention, since the cross-sectional area from the root portion to the vicinity of the apex portion of the secondary protrusion element is larger than that of the primary protrusion element, the movement of the mascara liquid in the axial direction can be more effectively restricted. 
     A fifth invention is the mascara comb according to the configuration of any one of the first through fourth inventions, wherein the surface roughness of the protrusion elements is configured to be relatively small in relation to the surface roughness of the upper surface. 
     According to the configuration of the fifth invention, since the surface roughness of the protrusion element is small in relation to the upper surface, the mascara liquid held on the upper surface having a relatively large surface roughness can be smoothly transferred to the eyelashes, and the eyelashes can be effectively combed. 
     A sixth invention is the mascara comb according to the configuration of any one of the first through fifth inventions, wherein an open region where none of the protrusion elements are disposed is formed on the upper surface includes a center position in the orthogonal direction, has boundaries in the axial direction and the orthogonal direction defined by a plurality of the protrusion elements, and encompasses an area larger than the area encompassed on the upper surface by at least one of the rhombus structures; and the predetermined gap for applying the mascara liquid to the eyelashes while combing the eyelashes by the protrusion elements defining the boundaries is configured such that the eyelashes coming into contact with the open region pass through the predetermined gap. 
     According to the configuration of the sixth invention, since no protrusion elements are disposed in the open area, a larger amount of mascara liquid can be held than in the area where the protrusion elements are disposed. Furthermore, since the protrusion elements that define the boundary of the open region form a predetermined gap, the held mascara liquid can be applied to the eyelashes by the protrusion elements, and moreover the eyelashes can be combed. 
     A seventh invention is the mascara comb according to the sixth invention, wherein the open region is configured from a plurality of portion regions; the portion regions have disposed alternatingly a region with a relatively wide width in the orthogonal direction and a region with a relatively narrow width; and a linear segment connecting center portion vicinity locations in the orthogonal direction is configured so as to bend. 
     According to the configuration of the seventh invention, since the relatively wide regions and the narrow regions are alternatingly disposed in the open region, so that the velocity of the flow of the mascara liquid decreases. Furthermore, since the line segment connecting the locations near the center portion in the orthogonal direction is configured to bend, the flow velocity of the mascara liquid decreases further. Through this, it is possible to hold the mascara liquid more effectively in the open region. 
     Effect of the Invention 
     With a mascara comb according to the present invention, a user can quickly apply mascara liquid to eyelashes without forming clumps. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic overall view of a mascara comb according to a first embodiment of the present invention. 
         FIG. 2  is a schematic view illustrating the state in which the mascara comb is engaged with a mascara liquid container. 
         FIG. 3  is a schematic view illustrating the state in which the mascara comb is pulled out from the mascara liquid container. 
         FIG. 4  is a schematic perspective view illustrating a comb portion. 
         FIG. 5  is schematic plan views illustrating the comb portion. 
         FIG. 6  is a schematic side view illustrating the comb portion. 
         FIG. 7  is a schematic enlarged view illustrating a protrusion disposed at the comb portion. 
         FIG. 8  is a schematic enlarged view illustrating an upper surface and protrusion of the comb portion. 
         FIG. 9  is a schematic cross-sectional view in a direction (line A-A in  FIG. 4 ) orthogonal to the axial direction of the comb portion. 
         FIG. 10  is a schematic view illustrating a mascara liquid holding region in the upper surface of the comb portion. 
         FIG. 11  is a schematic view illustrating the mascara liquid holding region in the comb portion when the mascara comb is pulled out from the container. 
         FIG. 12  is a schematic view illustrating a positioning state of protrusions in the mascara liquid holding region. 
         FIG. 13  is a schematic view illustrating a positioning state of protrusions for combing eyelashes. 
         FIG. 14  is a schematic view illustrating a positioning state of protrusions for combing eyelashes. 
         FIG. 15  is a schematic view illustrating a mascara comb usage method. 
         FIG. 16  is a schematic view illustrating the mascara comb usage method. 
         FIG. 17  is a schematic view illustrating the mascara comb usage method. 
         FIG. 18  is a schematic view of the mascara comb usage method as viewed from a side surface. 
         FIG. 19  is a schematic view of the mascara comb usage method as viewed from a side surface. 
         FIG. 20  is a schematic view of the mascara comb usage method as viewed from a side surface. 
         FIG. 21  is a schematic view of the mascara comb usage method as viewed from a side surface. 
         FIG. 22  is a schematic view illustrating the state which makes the mascara liquid adhere to the root of an eyelash with the comb portion. 
         FIG. 23  is a schematic view illustrating the state of combing an eyelash with the comb portion. 
         FIG. 24  is a schematic view illustrating the state of combing an eyelash with the comb portion. 
         FIG. 25  is a schematic perspective view illustrating a comb portion according to a second embodiment. 
         FIG. 26  is a schematic plan view illustrating the comb portion. 
         FIG. 27  is a schematic view illustrating a mascara liquid holding region in an upper surface of the comb portion. 
         FIG. 28  is a schematic perspective view illustrating a comb portion according to a third embodiment. 
         FIG. 29  is a schematic plan views illustrating the comb portion. 
         FIG. 30  is a schematic enlarged view illustrating a primary protrusion and a secondary protrusion disposed at the comb portion. 
         FIG. 31  is a schematic view illustrating a mascara liquid holding region in the upper surface of the comb portion. 
         FIG. 32  is a schematic view illustrating the mascara liquid holding region of the comb portion when a mascara comb is pulled out from a container. 
         FIG. 33  is a schematic view illustrating the positioning state of the primary protrusion and the secondary protrusion in the mascara liquid holding region. 
         FIG. 34  is a schematic view illustrating the positioning state of a protrusion for combing an eyelash. 
         FIG. 35  is a schematic view illustrating the positioning state of a protrusion for combing an eyelash. 
         FIG. 36  is a schematic view illustrating the positioning state of a protrusion for combing an eyelash. 
         FIG. 37  is a schematic view illustrating the state making mascara liquid adhere to the root of an eyelash with the comb portion. 
         FIG. 38  is a schematic view illustrating the state of combing an eyelash with the comb portion. 
         FIG. 39  is a schematic view illustrating the state of combing an eyelash with the comb portion. 
         FIG. 40  is a schematic perspective view illustrating a comb portion according to a fourth embodiment. 
         FIG. 41  is a schematic plan view illustrating the comb portion. 
         FIG. 42  is a schematic view illustrating a mascara liquid holding region in an upper surface of the comb portion. 
         FIG. 43  is a schematic perspective view illustrating a comb portion according to a fifth embodiment. 
         FIG. 44  is a schematic plan view illustrating the comb portion. 
         FIG. 45  is a schematic view illustrating a mascara liquid holding region in an upper surface of the comb portion. 
         FIG. 46  is a schematic plan view illustrating a comb portion according to a sixth embodiment. 
         FIG. 47  is a schematic view illustrating a mascara liquid holding region in an upper surface of the comb portion. 
         FIG. 48  is a schematic plan view illustrating a comb portion according to a seventh embodiment. 
         FIG. 49  is a schematic view illustrating a mascara liquid holding region in an upper surface of the comb portion. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Preferred embodiments of the present invention (hereinafter referred to as “embodiments”) will be described in detail below with reference to the drawings. In the following description, the same reference numerals are given to the same components, and the description thereof is omitted or simplified. Note that description of configurations that can be appropriately implemented by those skilled in the art will be omitted, and only the basic configuration of the present invention will be described. 
     First Embodiment 
     As illustrated in  FIG. 1 , a mascara comb  1  includes a comb portion  10 , a rod (handle)  50 , and a grip member  70 . The comb portion  10  is connected to one end portion of the rod  50 , and the grip member  70  is connected to the other end portion thereof. The mascara comb  1  is a mascara comb for applying a mascara liquid  100  (see  FIG. 2 ) to user&#39;s eyelashes and combing the eyelashes. 
     As illustrated in  FIG. 2 , the mascara comb  1  engages with a container  102  in which the mascara liquid  100  is stored in a detachable manner. The grip member  70  functions as a portion for gripping when the user operates the mascara comb  1 . The grip member  70  also functions as a sealing lid for the container  102 . 
     In the state illustrated in  FIG. 2 , when the mascara comb  1  is pulled out from the container  102  in the direction of the arrow Y 1 , the mascara liquid  100  is attached to the comb portion  10  of the mascara comb  1  as illustrated in  FIG. 3 . The arrow Y 1  direction is given as the vertical direction. The user pulls out the mascara comb  1  from the container  102  from below to above. Hereinafter, the configuration of the comb portion  10  will be described. 
     As illustrated in  FIG. 4 , the comb portion  10  includes an upper surface  10   a  and a lower surface  10   b . The upper surface  10   a  is an upward convex curved surface having a curvature radius equal to or greater than a predetermined curvature radius. The lower surface  10   b  is a curved surface having a predetermined curvature radius, but the curvature radius is smaller than the curvature radius of the upper surface  10   a . In other words, the upper surface  10   a  is a curved surface that is nearly flat in comparison with the lower surface  10   b . The lower surface  10   b  has a surface  10   ba  and a recess  10   bb.    
     A plurality of primary protrusions  12  are disposed on the upper surface  10   a . The primary protrusion  12  is an example of a protrusion element. The primary protrusion  12  has an overall elongated conical shape. That is, the primary protrusion  12  is formed in a shape that decreases in diameter as it progresses from the root portion to the vicinity of the apex, and the apex and the apex vicinity are configured as spherical surfaces. A plurality of primary protrusions  12  form a primary protrusion row BL 1 . A plurality of primary protrusion rows BL 1  are disposed parallel to each other on the upper surface  10   a . The primary protrusion row BL 1  is an example of a protrusion element row. 
     The comb portion  10  including the primary protrusions  12  is formed by injection molding a plastic resin. The plastic resin may be, for example, polyethylene, polypropylene, or polyamide. 
       FIG. 5  is a schematic plan view of the comb portion  10  of  FIG. 4  as viewed from the direction of the arrow Z 1 . The primary protrusion  12  illustrated in  FIG. 5  illustrates a cross section at the root. In the present specification, the cross section of the primary protrusion  12  and the cross section of the secondary protrusion  14  described later are a cross section cut in a direction orthogonal to the height direction of the primary protrusion  12  or the secondary protrusion  14  unless otherwise described, and mean a circular surface. The diameter of the primary protrusion  12  or the diameter of the secondary protrusion  14  means the diameter of the cross section of the primary protrusion  12  or the secondary protrusion  14  (hereinafter referred to as “cross-sectional diameter”) unless otherwise described. The radius of the primary protrusion  12  or the radius of the secondary protrusion  14  means the radius of the cross section of the primary protrusion  12  or the secondary protrusion  14  (hereinafter referred to as “cross-sectional radius”) unless otherwise described. The secondary protrusion  14  will be described with reference to the third through fifth embodiments. In the present specification, a direction in which the axis B extends is referred to as the “axis direction”, and a direction orthogonal to the axis direction as described above is referred to as the “orthogonal direction”. The axis B is a line passing through the center position in the orthogonal direction of the comb portion  10 . 
     The area of the upper surface  10   a  is defined as an area M 1 . The total area of the cross section of a root of the plurality of primary protrusions  12  is M 3 . In addition, the area (hereinafter referred to as “exposed area”) of a region (hereinafter referred to as “exposed region”) exposed without the primary protrusion  12  on the upper surface  10   a  is defined as M 2 . In other words, Expression 1: M 2 =M 1 −M 3 . In the exposed region, a region inside the plurality of rhombus structures S 1  is defined as a primary region  10   a   1  (see  FIG. 10 ). The mascara liquid  100  is mainly held in the primary region  10   a   1 . 
     An exposure ratio which is the ratio of the area M 2  to the area M 1  (M 2 /M 1 ) is defined within a predetermined range. Specifically, the exposure ratio is defined as 0.85 or more and 0.97 or less. In other words, the exposed area where the primary protrusion  12  does not exist on the upper surface  10   a  is larger than the total area of the cross section of the root of the primary protrusion  12 . In the present embodiment, it is given that the area M 1  is 105 mm 2  (square millimeters). 
     The primary protrusions  12  are evenly disposed on the upper surface  10   a . In other words, the distance between the centers of the cross sections of two adjacent primary protrusions  12  in the axial direction is the same regardless of which primary protrusion  12  is focused upon. In addition, the distance between the centers of the cross sections of two adjacent primary protrusions  12  in the orthogonal direction is the same regardless of which primary protrusion  12  is focused upon. 
     For example, it is given that  205  primary protrusions are disposed on the upper surface  10   a , and the cross-sectional radius of the root of the primary protrusion is 0.125 mm (millimeters). Then, since the cross-sectional area of the root of the primary protrusion  12  is 0.049 mm 2  (square millimeters) and there are  205  primary protrusions  12 , the total cross-sectional area M 3  is 10.045 mm 2  (square millimeters). From Expression 1, the exposed area M 2  is 94.96 mm 2  (square millimeters). The exposure ratio (M 2 /M 1 ) is then 0.90. 
     As illustrated in  FIG. 5 , the plurality of primary protrusions  12  are disposed on the upper surface  10   a  so as to form a rhombus structure S 1 . A plurality of rhombus structures S 1  are disposed. The rhombus structures S 1  share each side with an adjacent rhombus structure S 1 . The rhombus structure S 1  is a rhombus whose diagonal line in the direction of the axis B is longer than the diagonal line in the orthogonal direction. As will be described later, in the rhombus structure S 1 , the two primary protrusions  12  forming the diagonal line in the axial direction are disposed so as to forma predetermined gap. The predetermined gap is a gap that does not interfere with the primary protrusion  12  and is a linear gap extending in the orthogonal direction; and is configured to apply the mascara liquid  100  to the eyelashes while combing the eyelashes. In addition, since they are configured in the shape where the diagonal line of the axial direction of the comb portion  10  is longer than the diagonal line of the orthogonal direction, the rhombus structures S 1  are a velocity adjusting portion which functions as a velocity adjusting mechanism where the velocity with which the mascara liquid flows in the axial direction is slower than the velocity with which the mascara liquid  100  flows in the orthogonal direction; further, the inside of the rhombus structure S 1  is a holding unit having a function of holding the mascara liquid  100  on the upper surface  10   a.    
     In order to form the plurality of rhombus structures S 1  described above, a plurality of primary protrusions  12  are disposed as described below. As illustrated in  FIG. 5 , each primary protrusion row BL 1  is configured so as to be disposed such that in a cross section of the plurality of primary protrusions  12 , the distance between center positions are an equal length LC. 
     A predetermined reference distance length C 1  is defined for the distance between respective center lines of adjacent primary protrusion rows BL 1 . The center line of the primary protrusion row BL 1  is a line connecting the centers of a cross section of the plurality of primary protrusions  12  configuring the primary protrusion row BL 1 . The length C 1  of the reference interval is, for example, 1.0 mm (millimeter). 
     In addition, to form the rhombus structure S 1 , the primary protrusion row BL 1  is disposed with a predetermined angle θ 1  with respect to the axis B of the comb portion  10 . The angle θ 1  is an angle larger than 0 degrees and smaller than 45 degrees, desirably 25 degrees or more and less than 45 degrees, and in the present embodiment, it is 40 degrees. By having such an angle θ 1 , not only is the rhombus structure S 1  formed limiting the movement of the mascara liquid  100  in the axial direction, but also the mascara liquid  100  can be applied to the eyelashes evenly. 
       FIG. 6  is a schematic side view of the comb portion  10 . As illustrated in  FIG. 6 , the height of the primary protrusions  12  is configured to increase from the center portion of the comb portion  10  toward the sides (outside). As a result, the shape of the comb including the plurality of primary protrusions  12  matches the shape of the eyelid or the shape formed by the roots of the plurality of eyelashes. For example, the height h 1  of the outermost primary protrusion  12 A is 2.5 mm, and the height h 2  of the innermost primary protrusion  12 B is 1.5 mm. In the schematic perspective view of  FIG. 4 , the illustration of the difference in height between the plurality of primary protrusions  12  is omitted, which means that the same applies to the height of the primary protrusions  12  and/or the secondary protrusions  14  according to the second through seventh embodiments. Note that unlike the present embodiment, the plurality of primary protrusions  12  and/or secondary protrusions  14  may all be configured to have the same height, which means that the same applies to the height of the primary protrusions  12  and/or the secondary protrusions  14  according to the second through seventh embodiments. 
       FIG. 7  is a schematic view of the primary protrusion  12 A positioned on an outermost end of the comb portion  10  and the primary protrusion  12 B located in the center as viewed from the side. As illustrated in  FIG. 7 , the primary protrusion  12 A has a height h 1 , and the primary protrusion  12 B has a height h 2 . The height h 2  is lower than the height h 1 . The primary protrusion  12 A and the primary protrusion  12 B have the same cross-sectional diameter  12   d   1  at the root portion and the same cross-sectional diameter  12   d   2  near the apex. This means that the rate at which the diameter of the primary protrusion  12 A decreases (reduction rate) from the root portion toward the vicinity of the apex is smaller than the rate at which the diameter of the primary protrusion  12 B decreases (reduction rate) from the root portion toward the vicinity of the apex. In other words, as illustrated in the rightmost drawing of  FIG. 7 , focusing on up to the height h 2 , it means that the area of the primary protrusion  12 A in the side view is larger than the area of the primary protrusion  12 B in the side view. As a result, the resistance acting upon the flow of the mascara liquid  100  increases between the primary protrusions  12  toward the sides of the comb portion  10 . In the present embodiment, for example, the cross-sectional diameter  12   d   1  of the root portion of the primary protrusion  12  is 0.25 mm, and the cross-sectional diameter  12   d   2  near the apex is 0.17 mm. 
     As illustrated in  FIG. 8 , the primary protrusions  12  are disposed on the upper surface  10   a . The surface roughness of the primary protrusions  12  is smaller than the surface roughness of the upper surface  10   a . In other words, the surface of the primary protrusions  12  has relatively small unevenness, whereas the exposed region exposed without the primary protrusions  12  on the upper surface  10   a  has relatively large unevenness. As a result, it is easier for the mascara liquid  100  to remain in the exposed region of the upper surface  10   a , and more difficult for it to remain on the surface of the primary protrusions  12 . With this configuration, it is possible to hold the mascara liquid  100  in the exposed area of the upper surface  10   a , and then effectively transfer the mascara liquid  100  to the eyelashes with the primary protrusions  12  as well as effectively comb the eyelashes. 
     As illustrated in  FIG. 9 , the upper surface  10   a  is formed as a curved surface having a predetermined curvature radius R 1 , and the lower surface  10   b  is formed as a curved surface having a predetermined curvature radius R 2 . The short axis length d 1  in  FIG. 5  is twice the curvature radius R 2 . The curvature radius R 1  of the upper surface  10   a  is defined as a length that is at least 1.9 times the curvature radius R 2  of the curved surface of the lower surface  10   b . For example, the curvature radius R 1  is 4.17 mm, and the curvature radius R 2  is 2.1 mm. In other words, the upper surface  10   a  is formed as a curved surface that is nearly flat with respect to the lower surface  10   b.    
     As illustrated in  FIG. 10 , on the upper surface  10   a , the inside of the rhombus structure S 1  is a primary region  10   a   1 . The primary region  10   a   1  is a main region for holding the mascara liquid  100 . 
     Hereinafter, the movement of the mascara liquid  100  in the upper surface  10   a  of the comb portion  10  when the mascara comb  1  is pulled out from the container  102  will be described while referencing  FIG. 11  and  FIG. 12 . When the mascara comb  1  is pulled out from the container  102 , it is pulled out from below so that the axis B of the comb portion  10  is substantially vertical. Since the mascara liquid  100  has viscosity, even if gravity acts upon the mascara liquid  100  adhering to the upper surface  10   a , the mascara liquid  100  does not head downward rapidly but instead slowly flows downward. Here, on the upper surface  10   a , when there is resistance against the downward flow of the mascara liquid  100 , a larger amount of the mascara liquid  100  can be held on the upper surface  10   a.    
     In the primary region  10   a   1 , the primary protrusions  12  are disposed, which provides resistance against the flow of the mascara liquid  100 . As illustrated in  FIG. 11 , in the primary region  10   a   1 , the presence of the primary protrusions  12  becomes a resistance, and the mascara liquid  100  flows downward while meandering slowly as indicated by the arrow W 1 . 
     As illustrated in  FIGS. 11 and 12 , the primary protrusion  12  forms a rhombus structure S 1 . In other words, a plurality of primary protrusions  12  are disposed while forming a large number of rhombus structures S 1 . The rhombus structures S 1  hold the mascara liquid  100  in the primary region  10   a   1  and forms a configuration for combing the eyelashes  202 . 
     As illustrated in  FIGS. 11 and 12 , in the rhombus structure S 1 , the diagonal line in the axial direction is longer than the diagonal line in the orthogonal direction. For this reason, the distance (L 1 ) in the orthogonal direction is shorter than the distance (L 2 ) in the axial direction between the adjacent primary protrusions  12 . As a result, the resistance against the flow in the axial direction of the mascara liquid  100  is increased, and the mascara liquid  100  is effectively held in the primary region  10   a   1 . 
     In the rhombus structure S 1 , the distance in the orthogonal direction between the centers of the cross sections of the adjacent primary protrusions  12  is the distance L 1 , and the distance between the outer circumferences of the primary protrusions  12  is the distance wv 1 . Meanwhile, the distance in the axial direction between the centers of the cross sections of the adjacent primary protrusions  12  is the distance L 2 , and the distance between the outer circumferences of the primary protrusions  12  is the distance wh 1 . The distance wv 1  is shorter than the distance wh 1 . As a result, the flow of the mascara liquid  100  in the axial direction can be effectively limited. 
     As illustrated in  FIG. 12 , the distance L 2  is longer than twice the cross-sectional radius of the primary protrusion  12 . As a result, a gap F 1  having a distance wh 1  is formed between the primary protrusions  12  and serves as a path for eyelashes when the eyelashes are combed as described below. For example, the distance L 2  is 0.5 mm, twice the cross-sectional radius of the primary protrusion  12  is 0.25 mm, and the distance wh 1  is 0.25 mm. 
     As described above, the diameter reduction rate of the primary protrusions  12  becomes smaller toward the sides of the comb portion  10 . For this reason, as illustrated in  FIG. 11 , the flow velocity V 2  at the sides is slower than the flow velocity V 1  of the mascara liquid  100  near the center portion of the comb portion  10 , and further toward the sides, the velocities V 3 , V 4 , and V 5  are incrementally slower. In other words, the plurality of primary protrusions  12  configure a velocity tapering mechanism. 
     A structure for combing eyelashes  202  with the comb portion  10  will be described in detail while referencing  FIG. 13  and  FIG. 14 . As illustrated in  FIGS. 13 and 14 , the primary protrusions  12  are disposed in a straight line in the orthogonal direction and form a plurality of straight lines BC 1 . A plurality of linear gaps F 1  extending in the orthogonal direction are formed between the straight lines BC 1 , and the eyelashes  202  pass through the gaps F 1  so as to apply the mascara liquid  100  over the entirety and be combed. The reduction ratio of the cross-sectional diameter of the primary protrusion  12  is smaller toward the sides. Since the reduction ratio of the cross-sectional diameter of the primary protrusions  12  is larger as it is closer to the center portion, the velocity at which the mascara liquid  100  moves between the primary protrusions  12  in the center portion of the comb portion  10  is faster than the side portions. In other words, the velocity Vh 1  at the center portion is faster than the velocity Vh 2  at the sides. 
     As described above, the primary protrusions  12  are disposed so as to form a plurality of rhombus structures S 1 . Accordingly, the plurality of primary protrusions  12  form primary protrusion rows BL 1 , and the primary protrusion rows BL 1  are disposed at a predetermined angle θ 1  with respect to the axis B of the comb portion  10 . The angle θ 1  is defined so as to generate the above-described gap F 1  based on the equally spaced length LC (see  FIG. 5 ) and the radius of the primary protrusion  12 . 
     If the equally spaced length LC is determined, an angle θ 1  with respect to the axial direction of the primary protrusion row BL 1  and the secondary protrusion row BL 2  described later is defined so as to form the gap F 1  described above. The angle θ 1  is also an angle with respect to the axial direction of the rhombus structure S 1 . 
     If the root radius of the primary protrusions  12  is R 12 , the angle θ 1  is defined so as to satisfy Expression 2: LC·cos θ 1 &gt;R 12 ×2. In other words, the angle θ 1  is defined by the equally spaced length LC and the radius R 12 . Note that the distance L 2  (see  FIG. 12 ) is given by Expression 3: L 2 =LC·cos θ 1 . For this reason, when Expression 2 is modified, it becomes Expression 2A: L 2 &gt;R 12 ×2. 
     In the comb portion  10 , since the primary protrusion row BL 1  is disposed with the above-described angle θ 1  with respect to the axial direction of the comb portion  10 , not only can the flow of the mascara liquid  100  be effectively restricted but also a moderately large gap F 1  can be formed, making it possible to evenly apply an appropriate amount of the mascara liquid  100  to the plurality of eyelashes  202 . 
     As described above, the plurality of rhombus structures S 1  has a holding force for holding the mascara liquid  100  in the region  10   a   1  and a structure for applying the mascara liquid  100  evenly to the eyelashes  202 . 
     Hereinafter, a method of using the mascara comb  1  will be described while referencing  FIGS. 15 through 21 . As described above, when the mascara comb  1  is pulled out from the container  102 , the mascara liquid  100  adheres to the upper surface  10   a  of the comb portion  10 . As illustrated in  FIGS. 15 and 18 , an end portion along the longitudinal direction of the upper surface  10   a  is pressed against the root of the eyelashes  202 , and the mascara liquid  100  adhering to the upper surface  10   a  adheres to the root of the eyelashes  202 . Subsequently, as illustrated in  FIGS. 16, 17, and 19 through 21 , as the mascara liquid  100  held on the upper surface  10   a  is adhered to the eyelashes  202 , the comb portion  10  is slightly rotated and the mascara liquid  100  is adhered to the eyelashes  202  in their entirety while combing the eyelashes  202  with the primary protrusions  12 . 
     The state in which the mascara liquid  100  is applied to the eyelashes  202 , the mascara liquid  100  is extended with the comb portion  10 , and the eyelashes  202  are combed will be described while referencing  FIGS. 22 through 24 . 
     As illustrated in  FIG. 22 , when the comb portion  10  is held horizontally, a portion of the mascara liquid  100  moves downward (in the direction indicated by the arrow X 2 ), that is, to the end portion  10   a   11  of the upper surface  10   a . When the end portion  10   a   11  is pressed against the root of the eyelash  202 , the mascara liquid  100  adheres to the root of the eyelash  202 . In addition, when the comb portion  10  is moved in the direction of the arrow X 1  while slightly rotating, the mascara liquid  100  held on the upper surface  10   a  is applied to the eyelashes  202 , the mascara liquid  100  is applied to the whole eyelash  202 , and the eyelash  202  passes between the straight lines BC 1  and combed, as illustrated in  FIGS. 23 and 24 . As described above, since the upper surface  10   a  of the comb portion  10  is a curved surface that is nearly flat with respect to the lower surface  10   b , the holding force of the mascara liquid  100  is further increased. When the user  200  presses the end portion of the upper surface  10   a  of the comb portion  10  against the root of the eyelash  202  to adhere the mascara liquid  100 , if the lower surface  10   b  of the comb portion  10  is a curved surface, since the end portion of the upper surface  10   a  and the curved surface of the lower surface  10   b  are made continuous, it is easy for the user  200  to sense distance from the end portions. Meanwhile, if the lower surface  10   b  is flat, the end portion of the upper surface  10   a  and the lower surface  10   b  are not continuous, and it is difficult to sense the distance between the end portions of the upper surface  10   a . In other words, the upper surface  10   a  and the lower surface  10   b  are curved surfaces, and the curvature radius R 1  of the upper surface  10   a  and the curvature radius R 2  of the lower surface  10   b  have the above relationship, thereby further increasing the holding force of the mascara liquid  100  on the upper surface  10   a . In addition, when the user  200  presses the end portion of the upper surface  10   a  of the comb portion  10  against the root of the eyelash  202  to adhere the mascara liquid  100 , it is easy to sense the distance from the end portions. 
     As described above, since the upper surface  10   a  of the comb portion  10  has a curvature radius equal to or larger than a predetermined curvature radius, when the mascara comb  1  is pulled out from the container  102  storing the mascara liquid  100 , the mascara liquid  100  easily stays on the upper surface  10   a , the movement of the mascara liquid  100  in the axial direction is restricted by the rhombus structure S 1  formed by the primary protrusions  12 , and the mascara liquid  100  is held inside the rhombus structure S 1 . The mascara comb  1  is used to comb the user&#39;s eyelashes in the orthogonal direction; however, since a plurality of linear gaps extending in the orthogonal direction are formed between the primary protrusions  12 , by passing the eyelashes through the gaps, the mascara liquid  100  is applied all the way to the tips of the eyelashes as well as combed. Here, the rhombus structure S 1  is a rhombus whose diagonal line in the axial direction of the comb portion  10  is longer than the diagonal line in the orthogonal direction orthogonal thereto. As a result, since the distance of the primary protrusions  12  in the orthogonal direction becomes shorter than the distance between the primary protrusions  12  in the axial direction, the movement of the mascara liquid  100  in the axial direction can be effectively restricted. This means that the distance between the primary protrusions  12  in the axial direction is longer than the distance between the primary protrusions  12  in the orthogonal direction, which allows a predetermined gap to be formed for applying the mascara liquid  100  to the eyelashes while combing the eyelashes. In other words, according to the mascara comb  1 , the mascara liquid  100  held on the upper surface  10   a  of the comb portion  10  is applied to the eyelashes by a continuous operation, and while combing the eyelashes, the mascara liquid can also be applied to the eyelashes in their entirety by the primary protrusions  12  that are also formed on the upper surface  10   a  of the comb portion  10 . 
     In addition, when the mascara liquid  100  is located on the upper surface  10   a , there is a height from the upper surface  10   a  to the liquid surface. In other words, not only the upper surface  10   a  but also the outer peripheral surface of the primary protrusion  12  are also an element defining the ease or difficulty of flow of the mascara liquid  100 . If the surface roughness of the primary protrusions  12  is the same, the velocity at which the mascara liquid  100  flows between the primary protrusions  12  decreases as the distance between the outer peripheral surfaces of two adjacent primary protrusions  12  decreases. Since a plurality of primary protrusions  12  are formed so that the diameter reduction rate becomes smaller toward the sides, the flow velocity of the mascara liquid  100  is slower toward the sides. For this reason, when the mascara comb  1  is pulled out from the container  102  in which the mascara liquid  100  is stored, since the movement speed of the mascara liquid  100  to the side is relatively slow, the mascara liquid  100  tends to accumulate near the center portion of the upper surface  10   a . When applying the mascara liquid  100 , while the height of the primary protrusion  12  in the vicinity of the center is relatively low, since the mascara liquid  100  flows relatively easily, it is possible to effectively apply the mascara liquid  100  to eyelashes coming into contact with protruding elements near the center portion. 
     Moreover, since the surface roughness of the primary protrusions  12  is small in relation to the upper surface  10   a , it is possible to transfer the mascara liquid  100  held on the upper surface  10   a  having a relatively large surface roughness to the eyelashes as well as smoothly comb the eyelashes. 
     Second Embodiment 
     A second embodiment will be described with reference to  FIGS. 25 through 27 , with a focus on differences from the first embodiment. In the comb portion  10 A of the second embodiment, open regions  10   a   2  in which the primary protrusions  12  are not disposed are formed. The open regions  10   a   2  hold a large amount of the mascara liquid  100  and a predetermined gap is formed by the primary protrusions  12  configuring the boundary of the open region  10   a   2 . By having the eyelashes pass through the predetermined gaps in the plurality of primary protrusions  12 , it is possible to apply the mascara liquid  100  to the eyelashes and comb the eyelashes. 
     The open regions  10   a   2  are configured as a plurality of respectively independent spaces. The open regions  10   a   2  are regions which include a center position in the orthogonal direction on the upper surface  10   a  and for which are defined boundaries in the axial and the orthogonal directions by a plurality of primary protrusions  12 , and in which primary protrusions  12  are not disposed. Here, the center position in the orthogonal direction is a position through which the axis B passes. 
     The open regions  10   a   2  occupy an area larger than the area occupied by at least one rhombus structure S 1  on the upper surface  10   a . For this reason, an open region  10   a   2  can hold more mascara liquid  100  per unit area than a primary region  10   a   1 . 
     The exposure ratio, which is the ratio of the area M 2  to the area M 1  (M 2 /M 1 ), is defined as 0.85 or more and 0.97 or less. In the present embodiment, it is given that the area M 1  is 105 mm 2  (square millimeters). 
     It is given that  159  primary protrusions  12  are disposed on the upper surface  10   a , and the root cross-sectional radius of a primary protrusion  12  is 0.125 mm (millimeters). Then, since the cross-sectional area of the root of the primary protrusion  12  is 0.049 mm 2  (square millimeters) and there are  159  primary protrusions  12 , the total cross-sectional area M 3  is 7.791 mm 2  (square millimeters). According to Expression 1: M 2 =M 1 −M 3 , the exposed area M 2  is 97.21 mm 2  (square millimeter). Also, the exposure ratio (M 2 /M 1 ) is 0.93. 
     In addition, as illustrated in  FIG. 26 , the boundary of an open region  10   a   2  is defined by primary protrusions  12  so that both side surfaces of the eyelash  202  always pass through a gap between primary protrusions  12  in the orthogonal direction, allowing the eyelashes  202  to be combed. In other words, as illustrated in  FIG. 26 , in the open regions  10   a   2 , the distance L 3  between the primary protrusions  12   e   1  and  12   e   2  that are most separated in the orthogonal direction is configured to be equal to the distance L 3  between the other primary protrusions  12 . The distance L 3  is the distance between the outer peripheral surfaces at the roots of adjacent primary protrusions  12 . 
     As illustrated in  FIG. 27 , in an open region  10   a   2 , the width w 1  of the center position in the orthogonal direction is wider than the width w 2  at the end portions in the orthogonal direction. In other words, an open region  10   a   2  is configured wider at a position relatively close to the axis B of the comb portion  10 A than at a position relatively far from the axis B. For this reason, in the open region  10   a   2 , the flow of the mascara liquid  100  in the orthogonal direction is restricted, and it is possible for more mascara liquid  100  to be held near the center in the orthogonal direction. As a result, when the mascara comb is pulled up from the container  102 , the flow in the orthogonal direction is restricted, and more mascara liquid  100  is held on the upper surface  10   a.    
     As described above, since no primary protrusions  12  are disposed in an open region  10   a   2 , it is possible to hold more mascara liquid  100  per unit area than in a primary region  10   a   1  where primary protrusions  12  are disposed. Furthermore, since the boundaries are defined by primary protrusions  12  so that the mascara liquid  100  held in the open region  10   a   2  passes through the predetermined gap, it is possible for the mascara liquid  100  held to be applied to the eyelashes, and further the eyelashes be combed by the primary protrusions  12  defined by the boundaries. 
     Third Embodiment 
     A third embodiment will be described with reference to  FIGS. 28 through 39 , with a focus on differences from the first embodiment. 
     In the comb portion  10 B of the third embodiment, a plurality of primary protrusions  12  and a plurality of secondary protrusions  14  are disposed on the upper surface  10   a . The primary protrusion  12  is an example of a primary protrusion element, and the secondary protrusion  14  is an example of a secondary protrusion element. The primary protrusion  12  and the secondary protrusion  14  are in an overall elongated cone shape, with the apex and the apex vicinity configured as a spherical surface. 
     A plurality of primary protrusions  12  form primary protrusion rows BL 1 , and a plurality of secondary protrusions  14  form secondary protrusion rows BL 2 . On the upper surface  10   a , a plurality of primary protrusion rows BL 1  and a plurality of secondary protrusion rows BL 2  are disposed parallel to each other. The primary protrusion row BL 1  is an example of a primary protrusion element row, and the secondary protrusion row BL 2  is an example of a secondary protrusion element row. 
     The comb portion  10  including primary protrusions  12  and secondary protrusions  14  is formed by injection molding of a plastic resin. The plastic resin may be, for example, polyethylene, polypropylene, or polyamide. 
       FIG. 29  is a schematic plan view of the comb portion  10 B of  FIG. 28  viewed from the arrow Z 1  direction. The primary protrusions  12  and the secondary protrusions  14  illustrated in  FIG. 29  illustrate a cross section at their roots. The cross-sectional diameter of a secondary protrusion  14  is larger than the cross-sectional diameter of a primary protrusion  12 . 
     As illustrated in  FIG. 29 , the plurality of primary protrusions  12  are disposed on the upper surface  10   a  so that four primary protrusions  12  forma rhombus structure S 1 . The plurality of primary protrusions  12  and secondary protrusions  14  are disposed on the upper surface  10   a  so that a rhombus structure S 2  is formed by two primary protrusions  12  and two secondary protrusions  14 . A plurality of rhombus structures S 1  and rhombus structures S 2  are respectively disposed. A rhombus structure S 1  shares each side with an adjacent rhombus structure S 1 . The rhombus structures S 1  and S 2  are rhombuses whose diagonal lines in the direction of the axis B of the comb portion  10  are longer than the diagonal lines in the orthogonal direction orthogonal thereto. A predetermined gap is formed by the rhombus structures S 1 . The predetermined gap is a gap that does not interfere with primary protrusions  12  and is a linear gap extending in the orthogonal direction; and is configured to apply the mascara liquid  100  to the eyelashes while combing the eyelashes. The rhombus structure S 2  is also configured to forma predetermined gap that does not interfere with the primary protrusions  12  and the secondary protrusions  14 . 
     In addition, since rhombus structures S 1  and S 2  are configured in a shape where the diagonal line in the axial direction of the comb portion  10  is longer than the diagonal line in the orthogonal direction, the rhombus structures S 1  and S 2  are velocity regulating portions which function as velocity regulating mechanisms to make the velocity with which the mascara liquid  100  flows in the axial direction slower than the velocity with which the mascara liquid  100  flows in the orthogonal direction, and are also holding portions having the function of holding the mascara liquid  100  within the rhombus structures S 1  and S 2  on the upper surface  10   a.    
     In order to form the plurality of rhombus structures S 1  and S 2  described above, the plurality of primary protrusions  12  and secondary protrusions  14  are formed and disposed as follows. 
     As illustrated in  FIG. 29 , a primary protrusion row BL 1  includes a plurality of primary protrusions  12 . The primary protrusion row BL 1  is configured such that the center positions in the cross section of the plurality of primary protrusions  12  are of equal length LC. A secondary protrusion row BL 2  includes a plurality of secondary protrusions  14 . The secondary protrusion row BL 2  is configured such that the center positions in the cross section of the plurality of secondary protrusions  14  are arranged with the same length LC as the primary protrusion row BL 1 . As a result, the distance between the outer peripheral surfaces of the adjacent secondary protrusions  14  in a secondary protrusion row BL 2  is shorter than the distance between the outer peripheral surfaces of the adjacent primary protrusions  12  in a primary protrusion row BL 1 . 
     A predetermined reference interval length C 1  is defined for the distance of the center lines of adjacent primary protrusion rows BL 1 , and the distance of the center lines of adjacent primary protrusion rows BL 1  and secondary protrusion rows BL 2 . The center line of the primary protrusion row BL 1  is a line connecting the centers of the cross sections of the plurality of primary protrusions  12  forming the primary protrusion row BL 1 . The center line of the secondary protrusion row BL 2  is a line connecting the centers of the cross sections of the plurality of secondary protrusions  14  forming the secondary protrusion row BL 2 . The length C 1  of the reference interval is, for example, 1.2 mm (millimeters). 
     The primary protrusion row BL 1  and the secondary protrusion row BL 2  are disposed with a predetermined angle θ 1  with respect to the axis B of the comb portion  10 . The angle θ 1  is an angle greater than 0 degrees and smaller than 45 degrees, desirably 25 degrees or more and less than 45 degrees, and in the present embodiment, it is 36 degrees. By having such an angle θ 1 , the movement of the mascara liquid  100  in the axial direction is restricted, and it is possible to configure a gap in the orthogonal direction for applying the mascara liquid  100  evenly to the eyelashes. 
     The plurality of primary protrusion rows BL 1  are disposed in a state sandwiched between the secondary protrusion rows BL 2 . For example, four primary protrusion rows BL 1  are sandwiched between two secondary protrusion rows BL 2 . The region inside the rhombus structure S 1  or the rhombus structure S 2  and sandwiched between two secondary protrusion rows BL 2  is defined as an inner region  10   aa . The movement of the mascara liquid  100  held in the inner region  10   aa  toward the outside is restricted in the axial direction by the secondary protrusion row BL 2 . 
       FIG. 30  is a schematic view of the primary protrusion and the secondary protrusion  14  located at the same position in the axial direction, for example, at the center portion of the comb portion  10 B, as viewed from the side. As illustrated in  FIG. 30 , the primary protrusion  12  and the secondary protrusion  14  have the same height h 2 . The diameter of a secondary protrusion  14  is larger than the diameter of a primary protrusion  12 . The diameter  14   d   1  of the root portion of the secondary protrusion  14  is larger than the diameter  12   d   1  of the root portion of the primary protrusion  12 , and the diameter  14   d   2  near the apex of the secondary protrusion  14  is larger than the diameter  12   d   2  near the apex of the primary protrusion  12 . For example, the height h 2  is 1.5 mm (millimeters), the diameter  14   d   1  is 0.3 mm, the diameter  14   d   2  is 0.26 mm, the diameter  12   d   1  is 0.25 mm, and the diameter  12   d   2  is 0.17 mm. 
     The primary protrusion  12  and the secondary protrusion  14  are formed in a shape in which the cross-sectional diameter decreases from the root portion toward the vicinity of the apex portion. The reduction rate of the cross-sectional diameter from the root portion of the secondary protrusion  14  toward the apex vicinity is smaller than the reduction rate of the cross-sectional diameter from the root portion of the primary protrusion  12  toward the apex vicinity. For example, the ratio of the diameter  14   d   2  near the apex to the diameter  14   d   1  of the root portion of the secondary protrusion  14  is 0.87, and the ratio of the diameter  12   d   2  near the apex to the diameter  12   d   1  of the root portion of the primary protrusion  12  is 0.68. For this reason, the secondary protrusion  14  not only restricts the movement of the mascara liquid  100  in the axial direction at the root portion, but also effectively restricts the movement of the mascara liquid  100  in the axial direction at a portion from the root portion to the apex vicinity. 
     As illustrated in  FIG. 31 , an inner region  10   aa  is formed as a region sandwiched between the secondary protrusion rows BL 2  on the upper surface  10   a . Since the primary protrusion  12  has a smaller root diameter than the secondary protrusion  14 , a relatively large area of the upper surface  10   a  is exposed per unit area in the inner region  10   aa . The inner region  10   aa  is a main region for holding the mascara liquid  100 . The secondary protrusion row BL 2 , by restricting the movement of the mascara liquid  100  in the axial direction, allows the mascara liquid  100  to be effectively held by the inner region  10   aa.    
     On the upper surface  10   a , for example,  162  primary protrusions  12  and 40 secondary protrusions  14  are disposed. The exposure ratio, which is the ratio (M 2 /M 1 ) of the exposed region M 2  of the region where the primary protrusion  12  and the secondary protrusion  14  do not exist with respect to the upper surface area M 1 , is defined as 0.85 or more and 0.97 or less. In the present embodiment, the area M 1  is given as 123 mm 2  (square millimeters). Since the cross-sectional area of the root of the primary protrusion  12  is 0.049 mm 2  (square millimeters), the total cross-sectional area M 3  is 7.94 mm 2  (square millimeters). Since the cross-sectional area of the root of the secondary protrusion  14  is 0.071 mm 2  (square millimeters) and there are 40 secondary protrusions  14 , the total cross-sectional area M 4  is 2.84 mm 2  (square millimeters). Accordingly, the exposed area M 2  is 112.22 mm 2  (square millimeters). In addition, the exposure ratio (M 2 /M 1 ) is 0.91. 
     Hereinafter, the movement of the mascara liquid  100  on the upper surface  10   a  of the comb portion  10 B when the mascara comb  1  is pulled out from the container  102  will be described while referencing  FIG. 32  and  FIG. 33 . 
     In the inner region  10   aa , the primary protrusion  12  is disposed, which provides resistance against the flow of the mascara liquid  100 . As illustrated in  FIG. 32 , in the inner region  10   aa , the presence of the primary protrusion  12  becomes a resistance, and the mascara liquid  100  flows downward while meandering slowly as indicated by the arrow W 1 . 
     Since the secondary protrusion  14  has a larger diameter than the primary protrusion  12 , the resistance to the flow of the mascara liquid  100  in contact with the secondary protrusion row BL 2  is larger than the resistance in the inner region  10   aa , and the movement of the mascara liquid  100  becomes more sluggish. As a result, the mascara liquid  100  adhering to the upper surface  10   a  becomes easily held in the inner region  10   aa.    
     The primary protrusions  12  and the secondary protrusions  14  form primary protrusion rows BL 1  and secondary protrusion rows BL 2 , and as illustrated in  FIG. 33 , also form rhombus structures S 1  and S 2 . That is, the primary protrusions  12  and secondary protrusions  14  are disposed forming multiple rhombus structures S 1  and S 2 . The rhombus structures S 1  and S 2  form a structure for holding the mascara liquid  100  on the upper surface  10   a  and for combing the eyelashes  202 . 
     As illustrated in  FIG. 33 , the rhombus structure S 1  is formed by four primary protrusions  12 . Adjacent primary protrusion rows BL 1  are referred to as a primary protrusion row BL 11  and a primary protrusion row BL 12  (not shown) for convenience. The primary protrusions  12  are disposed on the upper surface  10   a  such that a rhombus structure S 1  is formed by two adjacent primary protrusions  12  in the primary protrusion row BL 11  and two adjacent primary protrusions  12  in the primary protrusion row BL 12  facing the two primary protrusions  12 . 
     A rhombus structure S 2  is formed by two primary protrusions  12  and two secondary protrusions  14 . The primary protrusions  12  and the secondary protrusions  14  are disposed on the upper surface  10   a  such that a rhombus structure S 2  is formed at adjacent primary protrusion row BL 1  and secondary protrusion row BL 2  by two adjacent primary protrusions  12  in the primary protrusion row BL 1  and two adjacent secondary protrusions  14  in the secondary protrusion row BL 2  facing the two primary protrusions  12 . 
     As illustrated in  FIGS. 32 and 33 , in the rhombus structures S 1  and S 2 , the diagonal line in the axial direction is longer than the diagonal line in the orthogonal direction. For this reason, the distance in the orthogonal direction is shorter than the distance in the axial direction between adjacent primary protrusions  12 , between a primary protrusion  12  and a secondary protrusion  14 , and between adjacent secondary protrusions  14 . As a result, the resistance upon the flow of the mascara liquid  100  in the axial direction increases, effectively holding the mascara liquid  100  in the inner region  10   aa.    
     In the rhombus structures S 1  and S 2 , the distance in the orthogonal direction between the centers of the cross sections of the adjacent primary protrusion  12  and secondary protrusion  14  is the distance L 1  in each case. Since the diameter  12   d   1  of the root portion of the primary protrusion  12  is smaller than the diameter  14   d   1  (see  FIG. 30 ) of the root portion of the secondary protrusion, the distance wv 2  between the outer periphery of the primary protrusion  12  and the outer periphery of the secondary protrusion  14  in the rhombus structure S 2  is shorter than the distance wv 1  in the orthogonal direction between the outer peripheries of the primary protrusions  12  in the rhombus structure S 1 . In addition, the distance wv 3  between the outer peripheries of the secondary protrusions  14  in the rhombus structure S 2  is shorter than the distance wv 2 . In other words, the primary protrusions  12  and the secondary protrusions  14  are disposed such that the Expression 4: wv 3 &lt;wv 2 &lt;wv 1  is established. 
     As for the resistance to the flow of the mascara liquid  100  toward the arrow Y 2  direction (downward) illustrated in  FIG. 33 , the resistance in the inner region  10   aa  is given as a resistance α 1 , the resistance at the boundary between the inner region  10   aa  and the secondary protrusion row BL 2  is given as a resistance α 2 , and the resistance at the secondary protrusion row BL 2  is given as a resistance α 3 . As described above, since Expression 4 is satisfied, the resistance α 3  is larger than the resistance α 2 , and the resistance α 2  is larger than the resistance α 1 . That is, Expression 5: α1&lt;α2&lt;α3 is established. 
     Since the primary protrusions  12  and the secondary protrusions  14  are disposed so that the above-described Expression 5 is satisfied, the resistance upon the mascara liquid  100  heading in the direction of the arrow Y 2  increases as it heads downward. In other words, the primary protrusion  12  and the secondary protrusion  14  are configured to provide an incrementally larger resistance upon the downward flow of the mascara liquid  100 . As a result, since the mascara liquid  100  arrives at the secondary protrusion  14  having been decelerated by the resistance α 1  and the resistance α 2 , it is possible to more effectively restrict the downward flow of the mascara liquid  100 . Furthermore, in the first embodiment, as described while referencing  FIG. 6 , by configuring the height of the primary protrusions  12  and/or the secondary protrusions  14  so that it increases from the center of the comb portion  10 B toward the sides (outside), and configuring the cross-sectional area in a side view occurring at a predetermined height (for example, the height h 1  in  FIG. 6 ) to increase as the height of the primary protrusions  12  and/or secondary protrusions  14  increases, since a large resistance will develop downward along the axial direction, it becomes possible to more effectively restrict the downward flow of the mascara liquid  100 . 
     Next, a configuration for combing the eyelashes  202  with the comb portion  10 B will be described in detail while referencing  FIG. 34  through  FIG. 36 . As illustrated in  FIGS. 34 and 35 , the primary protrusions  12  and the secondary protrusions  14  are linearly disposed in the orthogonal direction and configure a plurality of straight lines BC 1 . A plurality of linear gaps F 1  extending in the orthogonal direction are formed between the straight lines BC 1 , and by passing the eyelashes  202  through the gap F 1 , the mascara liquid  100  is applied to the entirety and they are combed. 
     As described above, the primary protrusions  12  and the secondary protrusions  14  are disposed forming multiple rhombus structures S 1  and S 2 . As illustrated in  FIG. 36 , in the rhombus structures S 1  and S 2 , the distance in the axial direction between the centers of the cross sections of adjacent primary protrusions  12  and secondary protrusions  14  is the distance L 2  for each. 
     As illustrated in  FIG. 36 , the distance L 2  is longer than twice the radius of the cross section of the primary protrusion  12 . As a result, a gap F 1  having a distance wh 1  is formed between the primary protrusions  12 . The distance L 2  is longer than twice the radius of the cross section of the secondary protrusion  14 . As a result, a gap having a distance wh 2  is formed between the secondary protrusions  14 . The distance L 2  is larger than the sum of the radius of the cross section of the primary protrusion  12  and the radius of the cross section of the secondary protrusion  14 . As a result, a gap having a distance wh 3  is formed between the primary protrusion  12  and the secondary protrusion  14 . As a result, a gap F 1  in the orthogonal direction is formed between the primary protrusions  12 , between the secondary protrusions  14 , and between the primary protrusion  12  and the secondary protrusion  14 . 
     The distance L 2  is, for example, 0.6 mm, the distance wh 1  is 0.35 mm, the distance wh 2  is 0.300 mm, and the distance wv 3  is 0.325 mm. 
     As described above, the primary protrusion row BL 1  and the secondary protrusion row BL 2  are disposed with a predetermined angle θ 1  with respect to the axis B of the comb portion  10 B. The angle θ 1  is defined so as to produce the above-described gap F 1  based on the equally spaced length LC and the radii of the primary protrusion  12  and the secondary protrusion  14 . 
     If the equally spaced length LC is determined, the angle θ 1  with respect to the axial direction of the primary protrusion row BL 1  and the secondary protrusion row BL 2  is defined so as to form the gap F 1  described above. The angle θ 1  is also an angle with respect to the axial direction of the sides of the rhombus structures S 1  and S 2 . 
     If the radius of the primary protrusion  12  is given as R 12  and the radius of the secondary protrusion  14  is given as R 14 , the angle θ 1  is defined so as to satisfy Expression 2: LC·cos θ 1 &gt;R 12 ×2, Expression 6: LC·cos θ 1 &gt;R 14 ×2, and Expression 7: LC·cos θ 1 &gt;R 12 +R 14 . In other words, the angle θ 1  is defined by the equally spaced length LC and the radii R 12  and R 14 . Note that the distance L 2  is obtained by Expression 3: L 2 =LC·cos θ 1 . As a result, when Expressions 2, 6 and 7 are modified, they become Expression 2A: L 2 &gt;R 12 ×2, Expression 6A: L 2 &gt;R 14 ×2, and Expression 7A: L 2 &gt;R 12 +R 14 . 
     Since the direction in which the secondary protrusion row BL 2  extends approaches the orthogonal direction as the angle θ 1  satisfying the above-mentioned Expressions 2, 6, and 7 approaches 90 degrees, the variation in the disposition of the secondary protrusions  14  in the axial direction becomes smaller. Then, when the plurality of eyelashes  202  pass through the gap, there is a large difference between the number of eyelashes  202  passing only between the primary protrusions  12  and the number of eyelashes  202  passing between the primary protrusions  12  and the secondary protrusions  14 , preventing the mascara liquid  100  from being evenly applied across the plurality of eyelashes  202 . 
     On the other hand, while the variation in the disposition of the secondary protrusions  14  in the axial direction increases as the predetermined angle θ 1  approaches 0 degrees, the gap F 1  becomes too large. 
     In this regard, in the comb portion  10 B, since the primary protrusion row BL 1  and the secondary protrusion row BL 2  are disposed with the above-described angle θ 1  with respect to the axial direction of the comb portion  10 B, it is possible to effectively restrict the flow of the mascara liquid  100  in the axial direction as well as appropriately limit the variation of the secondary protrusions  14  in the axial direction and the difference in the number of eyelashes  202  passing between only the primary protrusions  12  and the eyelashes  202  passing also between the primary protrusions  12  and the secondary protrusions  14 , and since it is possible to form the appropriate gap F 1 , the mascara liquid  100  can be applied to an appropriate extent evenly to the plurality of eyelashes  202 . 
     As described above, the configuration having the rhombus structures S 1  and S 2  is a configuration for providing holding force for holding the mascara liquid  100  in the inner region  10   aa  and the secondary protrusion row BL 2 , and for applying the mascara liquid  100  evenly to the eyelashes  202 . 
     The state of applying the mascara liquid  100  to an eyelash  202 , extending the mascara liquid  100  with the comb portion  10 B, and combing the eyelash  202  will be described while referencing  FIG. 37  through  FIG. 39 . As illustrated in  FIG. 37 , when the end portion  10   a   11  of the upper surface  10   a  is pressed against the root of the eyelash  202 , the mascara liquid  100  adheres to the root of the eyelash  202 . In addition, when the comb portion  10 B is moved in the direction of the arrow X 1  while being slightly rotated, as illustrated in  FIG. 38  and  FIG. 39 , the mascara liquid  100  is applied to the entire eyelash  202 , and also the eyelash  202  is combed passing through gap F 1  (see  FIG. 36 ) and coming into contact with the primary protrusion  12  and the secondary protrusion  14 . 
     Fourth Embodiment 
     A fourth embodiment will be described with reference to  FIGS. 40 through 42 , with a focus on differences from the third embodiment. 
     In the comb portion  10 C of the fourth embodiment, an inner region  10   aa  is a region inside the rhombus structure S 1  or the rhombus structure S 2 , and is a region sandwiched between two secondary protrusion rows BL 2 . 
     In the inner region  10   aa , an open region  10   a   4  in which neither primary protrusions  12  nor secondary protrusions  14  are disposed is formed. The open region  10   a   4  is configured so as to hold a large amount of the mascara liquid  100 , and the primary protrusions  12  and/or the secondary protrusions  14  configuring the boundary of the open region  10   a   4  are configured so as to make it possible to apply the mascara liquid  100  to the eyelashes and comb the eyelashes. 
     The open regions  10   a   4  are configured as a plurality of respectively independent spaces. The open regions  10   a   4  are regions on the upper surface  10   a  which include a center position in the orthogonal direction and having boundaries defined in the axial direction and the orthogonal direction by a plurality of primary protrusions  12  and/or secondary protrusions  14 , and are regions where primary protrusions  12  and/or secondary protrusions  14  are not disposed. Here, a center position in the orthogonal direction is a position through which the axis B passes. 
     Since the open region  10   a   4  is a region where primary protrusions  12  and/or secondary protrusions  14  do not exist, more mascara liquid  100  can be held per unit area than the primary region  10   a   1 . 
     As illustrated in  FIG. 41  and  FIG. 42 , in the comb portion  10 C of the fourth embodiment, a portion of the position where the primary protrusion  12  is disposed in the comb portion  10 B of the third embodiment becomes an exposed region. As a result, as illustrated in  FIG. 42 , the exposed area is larger in the inner region  10   aa , and more mascara liquid  100  can be held per unit area. 
     In the upper surface  10   a , for example, 140 primary protrusions  12  and 40 secondary protrusions  14  are disposed. The exposure ratio, which is the ratio (M 2 /M 1 ) of the exposed area M 2  of the region where primary protrusions  12  and secondary protrusions  14  do not exist with respect to the upper surface area M 1 , is given as 0.85 or more and 0.97 or less. In the present embodiment, the area M 1  is given as 123 mm 2  (square millimeters). Since the cross-sectional area of the root of the primary protrusion  12  is 0.049 mm 2  (square millimeters), the total cross-sectional area is 6.86 mm 2  (square millimeters). Since the cross-sectional area of the root of the secondary protrusion  14  is 0.071 mm 2  (square millimeters) and there are 40 secondary protrusions  14 , the total cross-sectional area is 2.84 mm 2  (square millimeters). Then, the total M 3  of the cross-sectional areas of the primary protrusions  12  and the secondary protrusions  14  is 9.7 mm 2  (square millimeters). Accordingly, the exposed area M 2  is 113.3 mm 2  (square millimeters). In addition, the exposure ratio (M 2 /M 1 ) is 0.92. 
     Further, as illustrated in  FIG. 42 , it is configured such that at any position in the axial direction, both side surfaces of an eyelash  202  must always pass in the orthogonal direction between primary protrusions  12  or between secondary protrusions  14 , making it possible to comb the eyelashes  202 . 
     Fifth Embodiment 
     A fifth embodiment will be described with reference to  FIGS. 43 through 45 , with a focus on differences from the fourth embodiment. 
     In the comb portion  10 D of the fifth embodiment, an inner region  10   ab  is formed. Similar to the inner region  10   aa  of the fourth embodiment, the inner region  10   ab  is an inner region of the rhombus structure S 1  or the rhombus structure S 2 , and is a region sandwiched between the two secondary protrusion rows BL 2 . However, the inner region  10   ab  is longer in the axial direction and has a larger area than the inner region  10   aa  (see  FIG. 42 ) of the fourth embodiment. 
     In the inner region  10   ab , an open region  10   a   5  in which neither primary protrusions  12  nor secondary protrusions  14  are disposed is formed. The open region  10   a   5  is longer in the axial direction and has a larger area than the open region  10   a   4  of the fourth embodiment. The open region  10   a   5  holds a large amount of the mascara liquid  100 , and the primary protrusions  12  configuring the boundary of the open region  10   a   5  are configured to apply the mascara liquid  100  to the eyelashes and to comb the eyelashes. 
     The open region  10   a   5  is configured as a plurality of respectively independent spaces. The open regions  10   a   5  are regions on the upper surface  10   a  which include a center position in the orthogonal direction and having boundaries in the axial direction and the orthogonal direction defined by the plurality of primary protrusions  12  and/or the secondary protrusions  14 , and are regions where neither primary protrusions  12  nor secondary protrusions  14  are disposed. Here, a center position in the orthogonal direction is a position through which the axis B passes. 
     In the upper surface  10   a , for example, 140 primary protrusions  12  and  22  secondary protrusions  14  are disposed. The exposure ratio, which is the ratio (M 2 /M 1 ) of the exposed area M 2  of the region where primary protrusions  12  and secondary protrusions  14  do not exist with respect to the upper surface area M 1 , is given as 0.85 or more and 0.97 or less. In the present embodiment, the area M 1  is given as 123 mm 2  (square millimeters). Since the cross-sectional area of the root of the primary protrusion  12  is 0.049 mm 2  (square millimeters) and there are 140 primary protrusions  12 , the total cross-sectional area is 6.86 mm 2  (square millimeters). Since the cross-sectional area of the root of the secondary protrusion  14  is 0.071 mm 2  (square millimeters) and there are  22  secondary protrusions  14 , the total cross-sectional area is 1.56 mm 2  (square millimeters). Then, the total M 3  of the cross-sectional areas of the primary protrusion  12  and the secondary protrusion  14  is 8.42 mm 2  (square millimeters). Accordingly, the exposed area M 2  is 114.58 mm 2  (square millimeters). In addition, the exposure ratio (M 2 /M 1 ) is 0.93. 
     Further, as illustrated in  FIGS. 44 and 45 , it is configured such that at any position in the axial direction, both side surfaces of an eyelash  202  must always pass in the orthogonal direction between primary protrusions  12  or between secondary protrusions  14 , making it possible to comb the eyelashes  202 . 
     Sixth Embodiment 
     A sixth embodiment will be described with reference to  FIGS. 46 and 47 , with a focus on differences from the first embodiment. In a comb portion  10 E of the sixth embodiment, an open region  10   a   6  (see  FIG. 47 ) in which primary protrusions  12  are not disposed is formed. It is configured such that the open region  10   a   6  holds a large amount of the mascara liquid  100 , and the primary protrusions  12  configuring the boundary of the open region  10   a   6  can apply the mascara liquid  100  to the eyelashes and comb the eyelashes. 
     As illustrated in  FIG. 47 , in the comb portion  10 E of the sixth embodiment, an open region  10   a   6  is formed. The open region  10   a   6  has boundaries in the axial direction and the orthogonal direction defined by the primary protrusions  12  and is configured as a single space. The open region  10   a   6  is a region on the upper surface  10   a  which includes a center position in the orthogonal direction, and having boundaries in the axial direction and the orthogonal direction defined by a plurality of primary protrusions  12 , and is a region where primary protrusions  12  are not disposed. 
     In the open region  10   a   6 , while rhombus structures S 1  are formed in the regions E 1  and E 3 , no rhombus structures are formed in the region E 2 . As a result, it is possible to enlarge the area in the orthogonal direction of the open region  10   a   6 . Unlike the present embodiment, the rhombus structures S 1  may also be formed in the region E 2 . 
     Since the open region  10   a   6  is a region where no primary protrusions  12  exist, it is able to hold more mascara liquid  100  per unit area than the primary region  10   a   1 . 
     As illustrated in  FIG. 47 , the boundaries of the open region  10   a   6  are defined by the primary protrusions  12  so that both side surfaces of the eyelash  202  must always pass through the gap between the primary protrusions  12  in the orthogonal direction, making it possible to comb the eyelashes  202 . 
     As illustrated in  FIG. 47 , the gap indicated by the arrow F 2  near the center portion in the axial direction is larger than the gap indicated by the arrow F 1 . As a result, when applying the mascara liquid  100 , the flow of the mascara liquid  100  in the center portion vicinity is made comparatively fast, and it is possible to apply more mascara liquid to the eyelashes as well comb the eyelashes. 
     Modification of the Sixth Embodiment (Reference Example) 
     A modification of the sixth embodiment does not include the rhombus structures S 1 . In other words, in the sixth embodiment, the mode in which the primary protrusions  12  are disposed does not form the rhombus structures S 1 . Specifically, unlike the rhombus structures S 1 , the rhombus structures may be those in which the length in the axial direction is shorter than the length in the orthogonal direction, or the rhombus structures may be those in which the length in the axial direction is equal to the length in the orthogonal direction. Alternatively, the configuration may have, for example, only the region E 2  of  FIG. 47 , and not have any rhombus structures at all. 
     Seventh Embodiment 
     A seventh embodiment will be described with reference to  FIGS. 48 and 49 , with a focus on differences from the sixth embodiment. In a comb portion  10 F of the seventh embodiment, an open region  10   a   7  (see  FIG. 49 ) in which no primary protrusions  12  are disposed is formed. It is configured such that the open region  10   a   7  holds a large amount of the mascara liquid  100 , and the primary protrusions  12  configuring the boundary of the open region  10   a   7  can apply the mascara liquid  100  to the eyelashes and comb the eyelashes. 
     As illustrated in  FIG. 49 , an open region  10   a   7  is formed in a comb portion  10 F of the seventh embodiment. The open region  10   a   7  has boundaries in the axial direction and the orthogonal direction defined by the primary protrusions  12  and is configured as a single space. The open region  10   a   7  is a region on the upper surface  10   a  which includes a center position in the orthogonal direction and having boundaries defined in the axial direction and the orthogonal direction by a plurality of primary protrusions  12 ; and is a region where no primary protrusions  12  are disposed. 
     In the open region  10   a   7 , there are formed wide width portions A 1 , A 3 , and A 5  having relatively wide widths in the orthogonal direction and narrow width portions A 2  and A 4  having relatively narrow widths, with the wide width portions and narrow width portions formed alternatingly. When the mascara liquid  100  flows from a wide width portion to a narrow width portion, the speed decreases. In addition, when the respective vicinities of the center position in the orthogonal direction of, for example, the wide width portion A 1  and the narrow width portion A 2  are connected, arrows B 1  to B 5  are obtained. The trajectory formed by the arrows B 1  to B 5  is not linearly continuous but is bent. For this reason, the speed with which the mascara liquid flows decreases compared with the case where the trajectory configured by the arrows B 1  to B 5  is linear. 
     With the above configuration, more mascara liquid  100  can be held in the open region  10   a   7 . 
     Further, as illustrated in  FIG. 49 , the boundary of the open region  10   a   7  is defined by the primary protrusions  12  such that both side surfaces of an eyelash  202  must always pass in the orthogonal direction through the gap between the primary protrusions  12 , making it possible to comb the eyelashes  202 . 
     As illustrated in  FIG. 49 , a gap indicated by an arrow F 1  is formed at any position in the axial direction. As a result, it is possible to apply more mascara liquid to the eyelashes and comb the eyelashes. 
     Modification of the Seventh Embodiment (Reference Example) 
     A modification of the seventh embodiment does not include the rhombus structures S 1 . In other words, in the seventh embodiment, the mode in which the primary protrusions  12  are disposed does not form the rhombus structures S 1 . Specifically, unlike the rhombus structures S 1 , the rhombus structures may be those in which the length in the axial direction is shorter than the length in the orthogonal direction, or the rhombus structures may be those in which the length in the axial direction is equal to the length in the orthogonal direction. Alternatively, the configuration may have, for example, no rhombus structures at all. 
     The mascara comb of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. 
     REFERENCE SIGNS LIST 
     
         
           1  Mascara Comb 
           10 ,  10 A,  10 B,  10 C,  10 D,  10 E,  10 F Comb Portion 
           10   a  Upper Surface 
           10   a   1  Primary Region 
           10   a   2 ,  10   a   4 ,  10   a   5 ,  10   a   6 ,  10   a   7  Open Region 
           10   aa  Inner Region 
           12  Primary Protrusion 
           14  Secondary Protrusion 
         BL 1  Primary Protrusion Row 
         BL 2  Secondary Protrusion Row 
           50  Rod 
           70  Grip member 
           100  Mascara Liquid 
           102  Container 
           202  Eyelash(es)