Patent Publication Number: US-2018050488-A1

Title: Shaping device and shaping method

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application claims the priority benefit of Japanese Patent Application No. 2016-159874, filed on Aug. 17, 2016. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification. 
     TECHNICAL FIELD 
     The present disclosure relates to a shaping device and a shaping method. 
     DESCRIPTION OF THE BACKGROUND ART 
     A shaping device (three-dimensional printer (3D printer)) that shapes a three-dimensional object (3D object) using an ink jet head is conventionally known (see e.g., Japanese Laid-Open Patent Publication No. 2015-71282). 
     In such a shaping device, for example, the 3D object is shaped through the layering and shaping method by, for example, layering a plurality of layers of ink with the ink jet head. 
     SUMMARY 
     A case of coloring the 3D object includes, for example, a case of coloring some region in black using a black ink. In such a case, for example, it is sometimes desired to represent deep black such as piano black, and the like for the way black is externally seen. Thus, a configuration that can more appropriately represent such deep black is conventionally desired. The present disclosure thus provides a shaping device and a shaping method that can solve the problem described above. 
     When carrying out shaping using the ink jet head, consideration is made to shaping a colored 3D object by further using an ink for coloring of a chromatic color in addition to black ink and carrying out the shaping. In this case, for example, coloring of various colors can be carried out by forming a region of a surface where hue can be visually recognized from the outside with the ink for coloring, and the like. 
     Furthermore, in such a case, for example, in order to represent various colors through the subtractive color mixing method, a coloring region formed with the ink for coloring is normally formed to a thickness that can transmit light in a normal direction with respect to a surface of the 3D object. Thus, for example, the light that entered from the outside of the 3D object through the coloring region is reflected at a region having light reflecting property on the inside to represent various colors. In the case of the conventional configuration, the region to be colored in black is also usually formed similar to the region to be colored in other colors. 
     It is desired that the black region sufficiently absorbs the light that entered from the outside rather than transmitting the light, as opposed to the region colored in other colors. To this end, consideration is made to using a dark black ink having high pigment density, for example, for the black ink used to form the black region so as to sufficiently absorb the light even if the thickness of the black region is small. 
     However, when forming the black region with the dark black ink, an impression as if only the surface is colored in black is given, and a deep black may become difficult to represent. More specifically, for example, when attempting to represent piano black, and the like, which is a shiny deep black, an impression that the deepness of the black is insufficient is given, and a high-class piano black, and the like may not be sufficiently represented. 
     On the contrary, the inventor of the present disclosure found, through thorough research, that the thickness of the black region is important in representing a deep black. Based on such knowledge, consideration is made to further thicken the black region with respect to the thickness in the normal direction rather than forming the black region same as the region of other colors. In such a case, for example, it was found that the deep black can be more appropriately represented by increasing the transmittance of the black region with respect to a unit thickness to a certain extent. Furthermore, the inventor of the present disclosure, through thorough researches, found the features necessary for obtaining such effects, and contrived the present disclosure. 
     In other words, in order to solve the problem described above, the present disclosure provides a shaping device that shapes a three-dimensional 3D object, the shaping device including a plurality of discharging heads that each discharges a material of shaping; and a controller that controls the operation of the discharging head; wherein the plurality of discharging heads include at least a black head that discharges a black material, and a coloring material head that discharges a material for coloring of a chromatic color; the controller causes the plurality of discharging heads to form a coloring region colored using at least the material for coloring, and a black region colored in black using at least the black material in at least one part of a portion where hue is externally identifiable in the 3D object; and form the black region to be thicker than the coloring region with respect to a thickness in a normal direction perpendicular to a surface of the 3D object. 
     When configured in such manner, for example, the thickness of the black region in the normal direction can be appropriately and sufficiently ensured. Thus, for example, even if the depth of color per unit thickness in the black region can be suppressed to a certain extent and a light of a certain extent can be transmitted, the light can be sufficiently absorbed in the entire black region. Thus, according to such configuration, for example, a deep black can be more appropriately represented in the black region. Furthermore, in this case, for example, the coloring region can be appropriately formed to a thickness in a range where various colors can be appropriately represented through the subtractive color mixing method. Thus, according to such configuration, for example, various colors other than black can be appropriately represented. 
     In the relevant configuration, black merely needs to be, for example, substantially black according to the demanded accuracy of coloring. Furthermore, black is, for example, is a color of an achromatic color having light absorbing property. Furthermore, in such configuration, the discharging head is, for example, an ink jet head. Moreover, the material of shaping is, for example, ink. 
     The black region is, for example, a region where a portion of greater than or equal to a predetermined area in the surface is filled in black. Furthermore, the black region may be a region of one part specified by the user or the shaping data of the portion colored in black in the 3D object. Thus, when coloring one part of the coloring region in black, for example, such portion may be considered as one part of the coloring region rather than as the black region. Furthermore, with respect to the coloring region, when referring to being colored using the material for coloring, this includes, for example, being colored by further using the black material in addition to the material for coloring of a chromatic color. 
     Furthermore, in the 3D object, the light reflecting region is preferably formed using a material having light reflecting property (e.g., white ink) on the inner side of the coloring region (interior side of 3D object). In this case, the inner side is the side close to the interior of the 3D object (interior side of the 3D object). According to such configuration, for example, the color representation by the subtractive color mixing method can be appropriately carried out. Furthermore, in this case, consideration is made not to form the light reflecting region on the inner side of the black region. Moreover, for example, the light reflecting region, which is thin compared to the inner side of the coloring region, may be formed on the inner side of the black region. 
     Consideration is also made to using a shaping method, and the like having a feature similar to the above for the configuration of the present disclosure. In this case as well, for example, effects similar to the above can be obtained. Furthermore, the shaping method can also be considered as, for example, a method for manufacturing the 3D object. Moreover, a configuration of a 3D object shaped with the shaping device or the shaping method can be considered for the configuration of the present disclosure. 
     EFFECTS OF THE DISCLOSURE 
     According to the present disclosure, for example, a deep black can be more appropriately represented in the shaping device that shapes the 3D object. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1A and 1B  are views showing one example of a shaping device  10  according to one embodiment of the present disclosure.  FIG. 1A  shows one example of a configuration of a main part of the shaping device  10 .  FIG. 1B  shows one example of a configuration of a head unit  12  of the shaping device  10 . 
         FIGS. 2A to 2C  are views showing one example of a configuration of a 3D object  50  shaped by the shaping device  10 .  FIG. 2A  is a cross-sectional view of one example of the configuration of the 3D object  50 .  FIG. 2B  is a view describing features, and the like of a black region  308  in further detail.  FIG. 2C  is a view describing transmittance of the black region  308  in further detail. 
         FIGS. 3A to 3C  are views describing the features of the 3D object  50  in further detail.  FIG. 3A  shows another example of a configuration of the 3D object  50  shaped by the shaping device  10 .  FIG. 3B  shows a variant of the configuration of the 3D object  50 .  FIG. 3C  shows a further variant of the configuration of the 3D object  50 . 
         FIGS. 4A and 4B  are views describing a further variant of the configuration of the 3D object  50 .  FIG. 4A  shows one example of a configuration of when having the interior color of the 3D object  50  to be a color having light absorbing property.  FIG. 4B  shows a further variant of the configuration of the 3D object  50 . 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     Hereinafter, an embodiment according to the present disclosure will be described with reference to the drawings.  FIGS. 1A and 1B  show one example of a shaping device  10  according to one embodiment.  FIG. 1A  shows one example of a configuration of a main part of the shaping device  10 .  FIG. 1B  shows one example of a configuration of a head unit  12  of the shaping device  10 . 
     Excluding the points described below, the shaping device  10  may have a configuration same as or similar to a known shaping device. More specifically, excluding the points described below, the shaping device  10  may have a configuration same as or similar to, for example, a known shaping device that carries out shaping by discharging a liquid droplet to become a material of a 3D object  50  using an ink jet head. Other than the illustrated configuration, for example, the shaping device  10  may also include various types of configurations necessary for shaping, coloring, and the like of the 3D object  50 . 
     In the present example, the shaping device  10  is a shaping device (3D shaping device) that shapes a three-dimensional 3D object  50  through a layering and shaping method. In this case, the layering and shaping method is, for example, a method for shaping the 3D object  50  by overlapping a plurality of layers. In the present example, the shaping device  10  includes a head unit  12 , a shaping table  14 , a scanning driving unit  16 , and a controller  20 . 
     The head unit  12  is a portion that discharges the material of the 3D object  50 . In this case, discharging the material of the 3D object  50  refers to, for example, discharging an ink to become the material of the 3D object  50 . The ink is, for example, a liquid discharged from the ink jet head. The ink jet head is, for example, a discharging head that discharges the liquid droplet of ink (ink droplet) through an ink jet method. 
     More specifically, the head unit  12  discharges a liquid droplet of an ink that cures according to a predetermined condition from a plurality of ink jet heads, as the liquid droplet to become the material of the 3D object  50 . The landed ink is then cured to form, in an overlapping manner, each layer configuring the 3D object  50 . Furthermore, in the present example, an ultraviolet curing type ink (UV ink) that cures from a liquid state when irradiated with an ultraviolet ray is used for the ink. 
     Furthermore, the head unit  12  further discharges the material of a support layer  52  in addition to the material of the 3D object  50 . The shaping device  10  thus forms the support layer  52 , as necessary, at a periphery of the 3D object  50 . The support layer  52  is, for example, a layered structural object that supports the 3D object  50  by surrounding the outer periphery of the 3D object  50  being shaped. The support layer  52  is formed, as necessary, during the shaping of the 3D object  50 , and removed after the shaping is completed. A more specific configuration of the head unit  12  will be described in detail layer. 
     The shaping table  14  is a table-shaped member that supports the 3D object  50  being shaped and is arranged at a position facing the ink jet head in the head unit  12 , where the 3D object  50  being shaped is mounted on an upper surface thereof. Furthermore, in the present example, the shaping table  14  has a configuration in which at least the upper surface is movable in a layering direction (Z direction in the figure), where at least the upper surface moves in accordance with the progress in the shaping of the 3D object  50  by being driven by the scanning driving unit  16 . In this case, the layer direction is, for example, a direction in which the material of shaping is layered in the layering and shaping method. More specifically, in the present example, the layering direction is a direction (Z direction in the figure) orthogonal to a main scanning direction (Y direction in the figure) and a sub-scanning direction (X direction in the figure). 
     The scanning driving unit  16  is a driving unit that causes the head unit  12  to carry out a scanning operation of relatively moving with respect to the 3D object  50  being shaped. In this case, relatively moving with respect to the 3D object  50  being shaped means, for example, relatively moving with respect to the shaping table  14 . Furthermore, in the present example, the scanning driving unit  16  causes the head unit  12  to carry out a main scanning operation (Y scanning), a sub-scanning operation (X scanning), and a layering direction scanning (Z scanning). 
     When referring to causing the head unit  12  to carry out the main scanning operation, this means, for example, causing the ink jet head of the head unit  12  to carry out the main scanning operation. Furthermore, the main scanning operation is, for example, an operation of discharging the ink while moving in the main scanning direction. In the present example, the scanning driving unit  16  causes the head unit  12  to carry out the main scanning operation by fixing the position of the shaping table  14  in the main scanning direction and moving the head unit  12  side. In a variant of the configuration of the shaping device  10 , for example, the 3D object  50  side may be moved by fixing the position of the head unit  12  in the main scanning direction and, for example, moving the shaping table  14 . 
     As will be described in detail below, the head unit  12  further includes an ultraviolet light source in the present example. At the time of the main scanning operation, the scanning driving unit  16  further carries out the drive of the ultraviolet light source in the head unit  12 . More specifically, the scanning driving unit  16 , for example, turns ON the ultraviolet light source at the time of the main scanning operation to cure the ink landed on a surface-to-be-shaped of the 3D object  50 . The surface-to-be-shaped of the 3D object  50  refers to, for example, a surface on which a next layer of ink is formed by the head unit  12 . 
     When referring to causing the head unit  12  to carry out the sub-scanning operation, this means, for example, causing the ink jet head of the head unit  12  to carry out the sub-scanning operation. The sub-scanning operation is, for example, an operation of relatively moving with respect to the shaping table  14  in the sub-scanning direction orthogonal to the main scanning direction. The sub-scanning operation may be an operation of relatively moving with respect to the shaping table  14  in the sub-scanning direction by a feeding amount set in advance. 
     Furthermore, in the present example, the scanning driving unit  16  causes the head unit  12  to carry out the sub-scanning operation between the main scanning operations. In this case, the scanning driving unit  16  causes the head unit  12  to carry out the sub-scanning operation by fixing the position of the head unit  12  in the sub-scanning direction and moving the shaping table  14 . Furthermore, the scanning driving unit  16  may cause the head unit  12  to carry out the sub-scanning operation by fixing the position of the shaping table  14  in the sub-scanning direction and moving the head unit  12 . The scanning driving unit  16  causes the head unit  12  to carry out the sub-scanning operation, only when necessary, according to the size of the 3D object  50  to shape. Thus, when shaping the 3D object  50  of a small size, and the like, the 3D object  50  may be shaped without carrying out the sub-scanning operation. 
     When referring to causing the head unit  12  to carry out the layering direction scanning, this means, for example, causing the ink jet head of the head unit  12  to carry out the layering direction scanning. Furthermore, the layering direction scanning is, for example, an operation of relatively moving the head unit  12  in the layering direction with respect to the 3D object  50  by moving at least one of the head unit  12  or the shaping table  14  in the layering direction. In this case, when referring to moving the head unit  12  in the layering direction, for example, this means moving at least the ink jet head in the head unit  12  in the layering direction. Furthermore, moving the shaping table  14  in the layering direction means, for example, moving the position of at least the upper surface in the shaping table  14 . 
     The scanning driving unit  16  changes a head-table distance, which is a distance between the ink jet head in the head unit  12  and the shaping table  14 , by causing the head unit  12  to carry out the layering direction scanning in accordance with the progress of the shaping operation. The head-table distance may be, for example, a distance between a nozzle surface, where a nozzle (nozzle hole) is formed in the ink jet head, and the upper surface of the shaping table  14 . More specifically, in the present example, the scanning driving unit  16  fixes the position of the head unit  12  in the layering direction, and moves the shaping table  14 . The scanning driving unit  16  may fix the position of the shaping table  14  in the layering direction, and move the head unit  12 . 
     The controller  20  is, for example, a CPU of the shaping device  10 , and controls each unit of the shaping device  10  to control the shaping operation of the 3D object  50 . The controller  20  preferably controls each unit of the shaping device  10  based on, for example, shape information, color image information, and the like of the 3D object  50  to be shaped. According to the present example, the 3D object  50  can be appropriately shaped. 
     Next, a more specific configuration of the head unit  12  will be described. In the present example, the head unit  12  includes a plurality of ink jet heads. Each ink jet head is an example of a discharging head that respectively discharges the material of shaping, and the like, and includes a nozzle row in which a plurality of nozzles are lined in a predetermined nozzle row direction on a surface facing the shaping table  14 . Furthermore, the shaping device  10  shapes the 3D object  50  by discharging the material from the plurality of nozzle rows in the head unit  12 . 
     More specifically, in the present example, the head unit  12  includes a plurality of ink jet heads, a plurality of ultraviolet light sources  104 , and a flattening roller  106 . As shown in  FIG. 1B , the plurality of ink jet heads include an ink jet head  102   s , an ink jet head  102   mo , an ink jet head  102   w , an ink jet head  102   y , an ink jet head  102   m , an ink jet head  102   c , an ink jet head  102   k , and an ink jet head  102   t . Such plurality of ink jet heads are, for example, arranged lined in the main scanning direction with the positions in the sub-scanning direction aligned. 
     The ink jet head  102   s  is an ink jet head (support layer head) that discharges the material (S) of the support layer  52 . In the present example, an ultraviolet curing type ink, in which a cure degree by the ultraviolet ray is weaker than the material of the 3D object  50 , is used for the material of the support layer  52 . Thus, the ink jet head  102   s  discharges the ultraviolet curing type ink to become the material of the support layer  52  from each nozzle in the nozzle row. 
     As described above, the support layer  52 , for example, supports the 3D object  50  by surrounding the outer periphery of the 3D object  50  being shaped. More specifically, for example, the support layer  52  supports an overhang shape of the 3D object from below to allow the shaping of the 3D object  50  including the overhang portion. Furthermore, for example, consideration is also made to discharging the material of the support layer  52  to a shaping area in the shaping table  14  and forming the support layer  52  to a plate shape, and the like before the start of the shaping operation. According to such configuration, for example, the bumps on the surface of the shaping table  14  are corrected, and the planarity can be more appropriately ensured. A water soluble material that can be dissolved in water after the shaping of the 3D object  50  is preferably used for the material of the support layer  52 . In this case, a material of which cure degree is weaker and which more easily decomposes than the material configuring the 3D object  50  is preferably used. Furthermore, a known material for the support layer, for example, can be suitably used for the material of the support layer  52 . According to such configuration, for example, the support layer  52  can be appropriately removed by dissolving, removing, and the like after the shaping is completed. 
     The ink jet head  102   mo  is an ink jet head that discharges a shaping material ink (MO ink), and discharges the shaping material ink from each nozzle in the nozzle row. In this case, the shaping material ink is, for example, a shaping dedicated ink used for the shaping of the interior (interior region) of the 3D object  50 . 
     The interior of the 3D object  50  is not limited to being formed with the shaping material ink, and may be formed by further using an ink of another color. Furthermore, for example, consideration is also made to forming the interior of the 3D object  50  with only the ink of another color (e.g., white ink, etc.) without using the shaping material ink. In this case, the ink jet head  102   mo  may be omitted in the head unit  12 . 
     The ink jet head  102   w  is an ink jet head that discharges a white (W) ink, and discharges the white ink from each nozzle in the nozzle row. In the present example, the white ink is an example of a material having light reflecting property, and is, for example, used when forming a region (light reflecting region) having a property of reflecting light in the 3D object  50 . The light reflecting region, for example, reflects the light entering from outside the 3D object  50  when carrying out coloring in a full color representation by the subtractive color mixing method on the surface of the 3D object  50 . The full color representation is, for example, a representation of color carried out with a possible combination of the subtractive color mixing by the inks of the process colors. In the present example, the ink jet head  102   w  is an example of a light reflective material head that discharges the material having light reflecting property. 
     The ink jet head  102   y , the ink jet head  102   m , the ink jet head  102   c , and the ink jet head  102   k  (hereinafter referred to as ink jet heads  102   y  to  102   k ) are ink jet heads for decoration (decoration heads) used at the time of shaping of the colored 3D object  50 , and respectively discharges the respective ink of a plurality of colors of ink (decoration ink) used for coloring from each nozzle in the nozzle row. More specifically, the ink jet head  102   y  discharges a yellow (Y) ink. The ink jet head  102   m  discharges a magenta (M) ink. The ink jet head  102   c  discharges a cyan (C) ink. The ink jet head  102   k  discharges a black (K) ink. In this case, each color of YMCK is an example of a process color used for the full color representation. 
     Furthermore, in the present example, the ink of each color of YMC is an example of a material for coloring of a chromatic color. The black (K) ink is an example of a black material. Among the ink jet heads for decoration, the ink jet head  102   y , the ink jet head  102   m , and the ink jet head  102   c  are examples of a coloring material head that discharges the material for coloring of a chromatic color. The ink jet head  102   k  is an example of a black head that discharges a black material. The ink jet head  102   k  is an example of a light absorbing material head that discharges a material having light absorbing property. 
     The ink jet head  102   t  is an ink jet head that discharges a clear ink, and discharges the clear ink from each nozzle in the nozzle row. The clear ink is, for example, an ink of a clear color or a colorless transparent color (T). In the present example, the clear ink is also an example of a material having translucency. The ink jet head  102   t  is an example of a translucent material head that discharges the material having translucency. 
     The plurality of ultraviolet light sources  104  are light sources (UV light sources) for curing the ink, and generate the ultraviolet ray for curing the ultraviolet curing type ink. Furthermore, in the present example, each of the plurality of ultraviolet light sources  104  is arranged at each of one end side and another end side in the main scanning direction in the head unit  12  so as to sandwich the arrangement of the ink jet heads in between. A UVLED (ultraviolet LED), and the like, for example, can be suitably used for the ultraviolet light source  104 . Furthermore, consideration is also made to using a metal halide lamp, a mercury lamp, and the like for the ultraviolet light source  104 . 
     The flattening roller  106  has a configuration for flattening the layer of ink formed during the shaping of the 3D object  50 . At the time of the main scanning operation, for example, the flattening roller  106  comes into contact with the surface of the layer of ink and removes one part of the ink before being cured, to flatten the layer of ink. 
     The layer of ink configuring the 3D object  50  can be appropriately formed by using the head unit  12  having the configuration described above. Furthermore, the 3D object  50  can be appropriately shaped by forming the plurality of layers of ink in an overlapping manner. 
     A specific configuration of the head unit  12  is not limited to the configuration described above, and various modifications can be made. For example, in addition to the ink jet heads  102   y  to  102   k , the head unit  12  may further include ink jet heads for colors such as a light color of each color, R (red), G (green), B (blue), orange, and the like for the ink jet heads for coloring. Furthermore, the manner of arranging the plurality of ink jet heads in the head unit  12  can also be variously modified. For example, the positions in the sub-scanning direction of some ink jet heads may be shifted from the other ink jet heads. 
     Next, a configuration of the 3D object  50  shaped by the shaping device  10  in the present example will be described.  FIGS. 2A to 2C  show one example of a configuration of the 3D object  50  shaped by the shaping device  10 .  FIG. 2A  is a cross-sectional view of one example of the configuration of the 3D object  50 , and shows one example of a cross-section of the 3D object  50  at a plane perpendicular to the sub-scanning direction (X direction) in a simplified manner. 
     Although the illustration is omitted, the shaping device  10  forms the support layer  52  (see  FIGS. 1A and 1B ) at the periphery of the 3D object  50 , as necessary, at the time of shaping. For example, a cross-section at a plane perpendicular to the main scanning direction and the layering direction also has a region configuration similar to the case shown in  FIG. 2A . 
     In the present example, the shaping device  10  can shape the 3D object  50  in which at least one part of a portion where hue can be externally identified is colored. Furthermore, when shaping such colored 3D object  50 , for example, the shaping device  10  shapes the 3D object  50  including an interior region  302 , a light reflecting region  304 , a coloring region  306 , and a black region  308 , as in the illustrated configuration. In such a case, the controller  20  (see  FIGS. 1A and 1B ) of the shaping device  10  causes each ink jet head of the head unit  12  (see  FIGS. 1A and 1B ) to discharge various types of ink to form each region of the 3D object  50 . 
     The interior region  302  is a region configuring the interior of the 3D object  50 . The interior region  302  may, for example, be considered as a region configuring the shape of the 3D object  50 . In the present example, the shaping device  10  forms the interior region  302  by, for example, forming the layer of shaping material ink discharged from the ink jet head  102   mo  (see  FIGS. 1A and 1B ) in an overlapping manner. Furthermore, the shaping device  10  may further use an ink other than the shaping material ink to form the interior region  302  by, for example, simultaneously using the ink jet head other than the ink jet head  102   mo . Moreover, in the variant of the configuration of the shaping device  10 , for example, consideration is also made to forming the interior region  302  with the white ink and the like discharged from the ink jet head  102   w  (see  FIGS. 1A and 1B ) without using the ink jet head  102   mo . In this case, the interior region  302  and the light reflecting region  304  may not be distinguished, and a region combining both regions may be formed. 
     The light reflecting region  304  may be a region having light reflecting property fomied using the ink having light reflecting property. In the present example, the shaping device  10  forms the light reflecting region  304  by, for example, forming the layer of white ink discharged from the ink jet head  102   w  in an overlapping manner. In such a case, the shaping device  10  forms the light reflecting region  304  so as to surround the periphery of the interior region  302 , as shown in the figure. More specifically, in the present example, the shaping device  10  forms the light reflecting region  304  with respect to a position other than the portion for forming the black region  308  in the outer side of the interior region  302 . In this case, the outer side is the side close to the exterior of the 3D object  50  (exterior side of the 3D object  50 ). Furthermore, in this case, the coloring region  306  is further formed on the outer side of the light reflecting region  304 . When configured in such manner, the full color representation with the subtractive color mixing method can be appropriately carried out as, for example, the light reflecting region  304  is formed on the inner side of the coloring region  306 . The colored 3D object  50 , for example, thus can be appropriately shaped. 
     The thickness of the light reflecting region  304  is preferably formed to an even thickness of, for example, about 100 μm to 1 mm. In this case, the thickness of the region is, for example, the thickness in a normal direction perpendicular to the surface of the 3D object  50 . In the present example, the shaping device  10  forms the light reflecting region  304  using only the white ink. In a variant of the configuration of the shaping device  10 , for example, when carrying out the shaping at a higher speed, consideration is also made to further using the clear ink other than the white ink to form the light reflecting region  304 . 
     The coloring region  306  is a region where coloring is performed in the surface of the 3D object  50 . In this case, the surface of the 3D object  50  is, for example, the portion where the hue can be externally identified in the 3D object  50 . In the present example, the coloring region  306  is a region where colors other than black can be colored. Furthermore, the coloring region  306  is an example of a region colored using the material for coloring of a chromatic color. 
     Moreover, the shaping device  10  forms a layer of ink colored in a desired color using, for example, the ink of each color of YMCK discharged from the ink jet heads  102   y  to  102   k  (see  FIGS. 1A and 1B ) and the clear ink discharged from the ink jet head  102   t  (see  FIGS. 1A and 1B ). Such layers of ink are formed in an overlapping manner to form the coloring region  306 . 
     When configured in such manner, for example, the amount of change in the usage amount of the YMCK ink caused by the difference in the color to represent can be compensated by using the clear ink in addition to the ink of each color of YMCK. Thus, for example, the respective layers of ink configuring the coloring region  306  can be appropriately formed to a constant thickness. Therefore, according to the present example, for example, the full color representation can be more appropriately carried out. The thickness of the coloring region  306  is preferably formed to an even thickness of, for example, about 50 μm to 500 μm (e.g., about 300 μm). The thickness of the coloring region  306  may, for example, be smaller than 250 μm. Furthermore, in order to more appropriately enhance the resolution of the image drawn by coloring, for example, the thickness is preferably made to be smaller than or equal to 150 μm. 
     In the present example, the shaping device  10  foil is the coloring region  306  with respect to the position other than the portion where the black region  308  is to be formed in the surface of the 3D object  50 . Thus, the coloring region  306  is formed to cover the entire outer side of the light reflecting region  304 . In a variant of the configuration of the shaping device  10 , for example, the coloring region  306  may be formed on the outer side of one part of the light reflecting region  304 . 
     The black region  308  is a region colored in black in the surface of the 3D object  50 . In this case, when referring to the black region  308  being colored in black, this means for example, that the coloring is carried out so as to fill the region in black under a condition different from when one part of the coloring region  306  is colored in black. Thus, the black region  308  may, for example, be a region of one part specified by the user or the shaping data of the portion colored in black in the 3D object  50 . Furthermore, the black region  308  is an example of a region colored in black using a black material. The black region  308  may, for example, be a region where a portion of greater than or equal to a predetermined area in the surface is filled in black. 
     Moreover, in the present example, black merely needs to be, for example, substantially black according to the demanded accuracy of coloring. More specifically, in the present example, the black region  308  is a region colored in piano black. In this case, the piano black is, for example, a shiny deep black. On the contrary, when more generally considered, black can be considered as, for example, an achromatic color having light absorbing property. Thus, the black region  308  can also be considered as a light absorbing region formed with a material having light absorbing property. 
     In the present example, for example, the shaping device  10  forms the black region  308  so as to be distinguished from the coloring region  306  by forming the black region  308  to a thickness different from the coloring region  306 , as shown in the figure. More specifically, in the illustrated case, the shaping device  10  forms the black region  308  on the outer side of the region not formed with the light reflecting region  304  on the outer side of the interior region  302 . In this case, the black region  308  is formed with the black (B) ink and the clear (CL) ink using the ink jet head  102   t  in addition to the ink jet head  102   k  (see  FIGS. 1A and 1B ). More specifically, in this case, the controller  20  causes the ink jet head  102   k  to discharge the black ink and causes the ink jet head  102   t  to discharge the clear ink to cause the ink jet head  102   k  and the ink jet head  102   t  to form the black region  308 . According to such configuration, for example, the black region  308  can be formed with a lighter black compared to when the black region  308  is formed with only the black ink. In this case, when referring to forming the black region  308  with a lighter black, this means, for example, forming the black region  308  with black, of which transmittance with respect to a unit thickness becomes greater. 
     Furthermore, the shaping device  10  may further form the black region  308  thicker than the coloring region  306  with respect to the thickness in the normal direction. More specifically, in the illustrated case, the thickness of the black region  308  is equal to the thickness in which the light reflecting region  304  and the coloring region  306  are overlapped. According to such configuration, for example, the thick black region  308  can be appropriately formed while appropriately preventing a step difference from forming between the coloring region  306  and the black region  308  at the surface of the 3D object  50 , and the like. 
       FIG. 2B  is a view describing features, and the like of the black region  308  in further detail. As also described above, in the present example, the shaping device  10  forms the coloring region  306  and the black region  308  in at least one part of the surface of the 3D object  50 . Furthermore, the black region  308  is formed thicker than the coloring region  306  with respect to the thickness in the normal direction. When configured in such manner, for example, the thickness of the black region  308  in the normal direction can be appropriately and sufficiently ensured. Thus, for example, even if the depth of color per unit thickness in the black region  308  is suppressed to a certain extent and a light of a certain extent can be transmitted, the light can be sufficiently absorbed in the entire black region  308 . More specifically, in the present example, the black region  308  is formed by further using the clear ink in addition to the black ink, and hence the black region  308  is formed with a lighter black than when formed with only the black ink, as also described above. 
     When configured in such manner, for example, the light that entered from the outside can be reached farther back in the black region  308  compared to when the black region  308  is formed with a dark black. Furthermore, the light can be sufficiently absorbed by the entire black region  308  by making the thickness of the black region  308  sufficiently large. Thus, according to the present example, for example, the deep black can be more appropriately represented in the black region  308  compared to when the coloring of dark black is carried out and substantially all the light is absorbed by only a surface layer portion. 
     Considering only the representation of deep black, it appears that the black region  308  does not necessarily need to be made thicker than the coloring region  306 , and the coloring region  306  merely needs to be formed thick similar to the black region  308 . However, in the case of the coloring region  306 , if the thickness in the normal direction is increased, for example, color dullness, and the like may occur, and the appearance after the coloring may lower. Thus, the coloring region  306  is not formed thicker than necessary, and for example, is preferably formed to a thickness suited for carrying out the full color coloring. 
     On the other hand, according to the present example, for example, the coloring region  306  can be appropriately formed to a thickness in a range where various colors can be appropriately represented through the subtractive color mixing method. Thus, for example, various colors other than black can also be more appropriately represented at a high accuracy. 
     More specifically, the thickness of the black region  308  in the normal direction is, for example, greater than or equal to 250 μm and preferably greater than or equal to 300 μm. Furthermore, a difference in thickness between the black region  308  and the black region  308  in the normal direction is, for example, preferably greater than or equal to 50 μm. Furthermore, such difference in thickness is more preferably greater than or equal to 100 μm. 
     Furthermore, as also described above, the black region  308  is formed using the black ink and the clear ink in the present example. In this case, for example, an ink containing a black pigment for a color material can be suitably used for the black ink. According to such configuration, for example, a dark black can be more appropriately represented when using the black ink alone for the coloring and the like in the coloring region  306 . Furthermore, even the light black suited for the formation of the black region  308  can be appropriately represented by simultaneously using the clear ink. 
     Furthermore, as also described above, the clear ink is further used in addition to the ink of each color of CMYK when forming the coloring region  306  in the present example. More specifically, in this case, the controller  20  causes the ink jet heads  102   y  to  102   k  and the ink jet head  102   t  to discharge the respective inks to form the coloring region  306 . 
     In such a case, in the present example, for example, the plurality of ink jet heads in the head unit  12  are caused to form the black region  308  and the coloring region  306  such that a content ratio of the clear ink in the black region  308  becomes greater than a content ratio of the clear ink in the coloring region  306 . In this case, the content ratio of the clear ink in the region is, for example, the proportion occupied by the clear ink in the ink configuring the relevant region. The proportion occupied by the clear ink may be, for example, the proportion in weight ratio. According to such configuration, for example, the black region  308  can be appropriately formed with light black. 
     The content ratio of the clear ink in the black region  308  is preferably appropriately set according to the depth of the black ink used with the clear ink. Furthermore, in this case, the depth of the black ink differs, for example, according to the type of pigment to use, and the like. Thus, the difference in content ratio of the clear ink compared with the coloring region  306  may differ depending on the specific ink to use. 
     Furthermore, consideration is also made to making the content of the clear ink in the black region  308  smaller than in the coloring region  306  depending on the depth of the black ink to use. More specifically, for example, in a variant of the shaping device  10 , consideration is also made to further using a dedicated ink jet head to use for the formation of the black region  308 . In this case, for example, rather than using the same black ink for the coloring region  306  and the black region  308 , a dedicated black ink is used to form the black region  308 . In this case, consideration is made to using the black ink lighter than the normal black ink, used for the formation of the coloring region  306 , for the formation of the black region  308 . In such a case, for example, the content ratio of the clear ink in the black region  308  may be made smaller than in the coloring region  306 , as described above. In this case, the black region  308  may be formed using only the black ink for the black region  308  without using the clear ink. 
     As described above as well, in the present example, the representation of deep black can be realized by forming the black region  308 , of which entire thickness is sufficiently thick, using the light black ink. In this case, for example, the black region  308  is preferably formed such that the transmittance with respect to the portion of a predetermined thickness (e.g., unit thickness) becomes sufficiently large and the transmittance with respect to the entire black region  308  becomes sufficiently small. 
       FIG. 2C  is a view describing the transmittance of the black region  308  in further detail, and shows one example of a state of the black region  308  at a position where the normal direction becomes parallel to the layering direction (Z direction) in a simplified manner along with the light reflecting region  304  and the coloring region  306  at the periphery. As also described above, in the present example, the shaping device  10  shapes the 3D object  50  through the layering and shaping method. In this case, the layer of ink corresponding to each piece of slice data is formed in an overlapping manner based on a plurality of pieces of slice data corresponding to the cross-section of each position of the 3D object  50  to shape the 3D object  50 . 
     For example, in the present example, the shaping device  10  forms the black region  308  by overlapping a layer  404  of ink formed with the black ink and the clear ink. In this case, each layer  404  to be layered may be a layer colored in black of the same depth. Furthermore, the coloring region  306  is formed by overlapping a layer  402  of ink formed with the ink of each color of YMCK and the clear ink. In this case, the layer  402  and the layer  404  are regions in one layer of ink formed in correspondence with one piece of slice data. 
     In this case, with respect to the transmittance of the black region  308 , the transmittance of one layer  404  and the transmittance of the entire black region  308  are preferably set to an appropriate range, respectively. More specifically, in the black region  308 , the transmittance with respect to one layer  404 , which is a region for one layer, formed in correspondence with one piece of slice data is preferably greater than or equal to 40%. In this case, the transmittance with respect to one layer  404  is the transmittance of light in the layering direction. The transmittance may be, for example, a transmittance of white natural light. Furthermore, the transmittance with respect to one layer  404  is preferably greater than or equal to 65%. 
     Furthermore, the transmittance of the entire black region  308  is preferably smaller than or equal to 10%. In this case, the transmittance of the entire black region  308  refers to the transmittance of the black region  308  in the normal direction. Moreover, the transmittance of the entire black region  308  is preferably smaller than or equal to 5%, and more preferably smaller than or equal to 1%. According to such configuration, for example, a deep black can be appropriately represented with a configuration of layering the layer  404  of ink, of which density is low with only one layer. 
     In  FIG. 2C , a state of the black region  308 , and the like at the position where the normal direction becomes parallel to the layering direction is shown. Thus, in this case, the transmittance of the entire black region  308  becomes the transmittance in the layering direction. In this case, a great number of layers  404  needs to be formed in an overlapping manner, as shown in the illustrated configuration, to make the transmittance of the entire black region  308  sufficiently small. Furthermore, in the present example, a greater number of layers  404  can be layered by making the thickness of the black region  308  in the normal direction thicker than the coloring region  306 . Thus, according to the present example, for example, the transmittance of the entire black region  308  can be appropriately adjusted using the layer  404  of ink, of which density is low with only one layer. 
     Furthermore, in the 3D object  50 , for example, the black region  308  is sometimes formed at a position where the normal direction does not become parallel to the layering direction. In such a case as well, the transmittance with respect to the unit thickness can be appropriately enhanced by forming the black region  308  using the layer  404  of ink, of which density is low with only one layer. Furthermore, the transmittance of the entire black region  308  can be appropriately adjusted by making the thickness of the black region  308  in the normal direction sufficiently thick. Thus, according to such configuration, for example, a deep black can be appropriately represented even in the black region  308  at the position where the normal direction does not become parallel to the layering direction. 
     In order to more appropriately represent a deep black, the absorptance and the like of light in the black region  308  also needs to be appropriately set, in addition to the transmittance of the black region  308 . More specifically, the absorptance of light in the entire black region  308  is preferably made sufficiently large to appropriately represent black according to the demanded accuracy, and the like of the color. On the contrary, in the present example, the absorptance of light in the entire black region  308  can be appropriately enhanced by overlapping a great number of layers  404  of ink having low density to form the black region  308 . 
     Furthermore, the way the black represented by the black region  308  is seen changes, for example, depending on whether shiny or not, as well. The shininess of the color is greatly influenced by, for example, the state of the surface of the 3D object  50 . Thus, for example, when representing shiny black such as piano black, and the like, the surface of the 3D object  50  in the region where at least the black region  308  is formed is preferably formed in a glossy smooth state. Furthermore, a matted black, and the like is sometimes desirably represented, other than the shiny black such as the piano black, for the deep black. In such a case, the surface of the 3D object  50  is considered to be formed in the matted state. 
     Next, supplementary explanation, description of a variant, and the like will be made for a feature of the 3D object  50  shaped in the present example.  FIGS. 3A to 3C  are views describing a feature of the 3D object  50  in further detail. Excluding the points described below, the configuration denoted with the same reference numeral as  FIGS. 1A to 2C  in  FIGS. 3A to 3C  may have a feature same as or similar to the configuration in  FIGS. 1A to 2C . 
       FIG. 3A  shows another example of a configuration of the 3D object  50  shaped by the shaping device  10 . In  FIG. 2A , the 3D object  50  in which the outer peripheral surface has a planar shape is illustrated for the sake of convenience of illustration and explanation. In this case, the normal direction of the 3D object  50  is a direction perpendicular to the plane configuring the outer peripheral surface. 
     However, the shaping device  10  is not limited to shaping the 3D object  50  in which the outer peripheral surface has a planar shape, and may shape the 3D object  50  of various shapes. For example, in  FIG. 3A , one example of a configuration is illustrated for the 3D object  50  having a spherical shape. In such a case, the outer peripheral surface of the 3D object  50  is a curved surface. Furthermore, the normal direction of the 3D object  50  is a direction orthogonal to the surface at each position of the 3D object  50 , as shown with an arrow in the figure. In this case as well, the deep black can be appropriately represented by forming the black region  308  of light black with a sufficient thickness. 
     The direction orthogonal to the surface at each position of the 3D object  50  is, for example, the direction orthogonal to a tangent plane at each position. Furthermore, in this case, the normal direction may be the direction assumed as substantially the normal direction according to the accuracy, and the like demanded on shaping. 
     Furthermore, in a variant of a shaping operation of the shaping device  10 , consideration is made to further forming a region other than each region described above for the region configuring the 3D object  50 , and the like. More specifically, for example, consideration is made to forming a separation region between the light reflecting region  304  and the coloring region  306 , and the like. In this case, the separation region is, for example, a transparent region formed with the clear ink, and prevents the white ink configuring the light reflecting region  304  from mixing with the ink of each color configuring the coloring region  306 . 
     Furthermore, for example, consideration is made to further forming a transparent protective region on the outer side of the coloring region  306  and the black region  308 , and the like. In this case, the protective region is, for example, a transparent region formed with the clear ink, and protects the coloring region  306  and the black region  308  by covering the outer side of the coloring region  306  and the black region  308 . 
     In this case, a deeper impression can be provided, and the like for the black represented with the black region  308  by forming the transparent region that covers the outer side of the black region  308 . Furthermore, for example, the shiny black such as the piano black can be more appropriately represented by forming the surface of the protective region in a glossy smooth state. 
     Furthermore, consideration is made to forming the transparent region that covers the outer side of the black region  308  with a method (clear coat) such as painting, for example, rather than forming the relevant region at the time of shaping with the shaping device  10 . In this case, for example, consideration is made to having the surface of the 3D object  50  in a matted state at the time of shaping with the shaping device  10 , and carrying out glossy painting (gloss painting) with a transparent material with respect to the relevant surface. When configured in such manner as well, shininess can be provided to the black region  308  to appropriately represent the shiny black such as the piano black. 
     It is sometimes desired to have the surface to be a matted form depending on the quality demanded on the 3D object  50 . In such a case, for example, consideration is made to carrying out a matted painting (mat painting) by a transparent material with respect to the surface of the 3D object  50 . When configured in such manner as well, the 3D object  50  of desired quality can be appropriately shaped. In this case, for example, the surface of the 3D object  50  may be in a glossy state at the time of shaping with the shaping device  10 , which is a state before carrying out the mat painting. 
     In the description made above, a configuration of when uniformly coloring by overlapping a layer of ink having the same depth, and the like have been mainly described for the configuration of the black region  308 . However, the depth of black in the black region  308  is not necessarily uniform, and for example, may be differed according to the position in the normal direction. 
       FIG. 3B  shows a variant of the configuration of the 3D object  50 . In this case, the shaping device  10  forms the black region  308  divided into a plurality of regions  310   a ,  310   b  in the layering direction. The regions  310   a ,  310   b  are, for example, regions respectively colored to black of different depth by differing the content ratio of the clear ink. When configured in such manner as well, the deep black can be appropriately represented by forming the black region  308  in light black with a sufficient thickness. 
     Furthermore, in this case, the density of black in the region  310   b  on the outer side is preferably a density lighter than the region  310   a  on the inner side. According to such configuration, the deep black can be more appropriately represented. Furthermore, the number of regions to divide the black region  308  may be more. In this case, for example, the depth of black of the plurality of regions may be changed in a gradation form, for example, such that the density of black in the region on the outer side in the 3D object  50  becomes lighter than the region on the inner side. Furthermore, in this case, for example, one or a plurality of regions on the outermost side may be a colorless transparent region formed with the clear ink. 
     In the description made above, a configuration of when forming the light reflecting region  304  only on the inner side of the coloring region  306  without forming the light reflecting region  304  on the inner side of the black region  308 , and the like have been mainly described. However, in a further variant of the configuration of the 3D object  50 , the light reflecting region  304  may also be formed on the inner side of the black region  308 . 
       FIG. 3C  is a view showing a further variant of the configuration of the 3D object  50 , and shows one example of a configuration of the 3D object  50  of when the light reflecting region  304  is also formed on the inner side of the black region  308 . In this case, the shaping device  10  differs the thickness of the light reflecting region  304  between the inner side of the coloring region  306  and the inner side of the black region  308  according to the difference in thickness of the coloring region  306  and the black region  308  with respect to the thickness in the normal direction. In this case, the controller  20  (see  FIGS. 1A and 1B ) causes the plurality of ink jet heads in the head unit  12  to form the coloring region  306  and the black region  308  on the outer side of at least one part of the light reflecting region  304 . The thickness of the portion overlapping the black region  308  in the normal direction is made smaller than the thickness of the portion overlapping the coloring region  306  in the normal direction with respect to the thickness of the light reflecting region  304  in the normal direction. More specifically, in this case, the thickness of the black region  308  and the light reflecting region  304  combined is preferably adjusted so as to be equal to the thickness of the coloring region  306  and the light reflecting region  304  combined, as in the illustrated configuration. 
     According to such configuration, for example, the coloring region  306  and the black region  308 , of which thicknesses in the normal direction differ, can be appropriately formed on the outer side of the light reflecting region  304 . Thus, for example, the deep black can be more appropriately represented. 
     Furthermore, in the description made above, a case of forming the black region  308  using the black ink used as one of the process colors used for color representation has been mainly described above. However, in a variant of the configuration of the shaping device  10 , a light black ink to use for the formation of the black region  308  may be further used apart from the black ink of the process color, as briefly described above in relation to  FIGS. 2A to 2C . In this case, the head unit  12  further includes an ink jet head that discharges a black ink lighter than the black for the process color. In this case, the light black can be represented without simultaneously using the clear ink, and hence the layer of ink configuring the black region  308  may be formed with only such light black ink without using the clear ink. 
     Furthermore, for example, consideration is made to using an ink containing a black dye for a color material, and the like for the light black ink. When configured in such manner as well, the deep black can be appropriately represented by forming the black region  308  in light black with a sufficient thickness. 
     When considering the feature of the present example in a more generalized manner, consideration is also made to representing a deep color for not only black but also for other colors having light absorbing property according to the configuration similar to the present example. In this case, the color having light absorbing property is, for example, colors such as a color obtained by mixing one of the chromatic colors and black, a dark gray, and the like. Furthermore, the light having light absorbing property may be a color of low intensity. Even in such a case, a deep color can be represented by forming a region corresponding to the black region  308  using other colors having light absorbing property in place of black. 
     Furthermore, in order to more appropriately represent a deep dark black in the black region  308  and the like, for example, it is sometimes preferable to also consider the color of the interior of the 3D object  50 . More specifically, for example, when shaping the 3D object  50  of a small size or when forming the 3D object  50  including a thin portion, the light entering from the back side of the 3D object  50  with respect to a line of sight of observing the 3D object  50  may be transmitted through the 3D object  50  thus influencing the way the color of the 3D object  50  is seen. Thus, in a further variant of the configuration of the 3D object  50 , consideration is also made to using a configuration that can more appropriately suppress the influence of the transmitted light, and the like. 
       FIGS. 4A and 4B  are views describing a further variant of the configuration of the 3D object  50 , and shows an example of a configuration when having the color of the interior of the 3D object  50  as a color having light absorbing property. Excluding the points described below, the configuration denoted with the same reference numeral as  FIGS. 1A to 3C  in  FIGS. 4A and 4B  may have a feature same as or similar to the configuration in  FIGS. 1A to 3C . 
       FIG. 4A  is a view showing one example of a configuration of when having the color of the interior of the 3D object  50  as a color having light absorbing property, and shows one example of the configuration of the 3D object  50  for when forming the black region  308  same as or similar to the case described using  FIGS. 1A to 3C . In this case, the controller  20  (see  FIGS. 1A and 1B ) causes the plurality of ink jet heads in the head unit  12  (see  FIGS. 1A and 1B ) to form the interior region  302  with the color having light absorbing property. The coloring region  306  and the black region  308  are then formed on the outer side of the interior region  302 . The 3D object  50  is thereby shaped with a configuration (wrapping method) as if wrapping a black bean paste inside. 
     When configured in such manner, for example, the influence of the light passing through the interior of the 3D object  50  and exiting to the opposite side can be appropriately suppressed by forming the interior region  302  with the color having light absorbing property. Thus, for example, the deep dark black can be more appropriately represented in the black region  308 . Furthermore, in this case, the influence of the color, and the like on the back surface side of the 3D object  50  can be appropriately suppressed even for the coloring region  306 . Thus, various colors can be more appropriately represented even for the coloring region  306 . 
     In the relevant configuration, the interior region  302  is preferably formed in black, for example. According to such configuration, for example, the interior region  302  having light absorbing property can be appropriately formed. In this case, for example, consideration can be made to forming the interior region  302  using the ink jet head  102   k  (see  FIGS. 1A and 1B ) for the black ink. Furthermore, the color of the interior region  302 , for example, may be colored to a substantial black represented with a mixed color of Y (yellow), M (magenta), and C (cyan) instead of the black colored with the black ink. In this case, for example, the interior region  302  is foiuied using the ink jet heads  102   y  to  102   k  (see  FIGS. 1A and 1B ) for each color of YMC. In this case, the ink jet head  102   k , and the like may be further used to form the interior region  302 . Furthermore, when using the ink jet head  102   mo  (see  FIGS. 1A and 1B ) for the shaping material ink, as in the head unit  12  described using  FIGS. 1A and 1B  and the like, consideration is also made to using the shaping material ink of a color having light absorbing property such as black. 
     According to such configuration, for example, the interior region  302  can be appropriately formed with the color having light absorbing property. Furthermore, the influence of the light passing through the interior of the 3D object  50  and exiting to the opposite side can be appropriately suppressed. In this case as well, it is preferable not to form the light reflecting region  304  on the inner side of the black region  308 . According to such configuration, the deep black can be more appropriately formed. In this case as well, the light reflecting region  304  is preferably formed between the coloring region  306  and the interior region  302 . According to such configuration, for example, various colors can be more appropriately represented in the coloring region  306 . 
     When attempting to represent a deep black by thickening the black region  308  in the normal direction, a region having light absorbing property such as black is preferably connected so as to be continuous from the inner side of the 3D object  50  toward the surface so that the interior region  302  and the black region  308  are adjacent, as shown in  FIG. 4A . However, when focused on suppressing the influence of the light passing through the interior of the 3D object  50  and exiting to the opposite side, the configuration of the 3D object  50  may be further differed. 
       FIG. 4B  shows a further variant of the configuration of the 3D object  50 . In this case as well, the interior region  302  is formed with the color having light absorbing property, similar to the case shown in  FIG. 4A . Furthermore, the light reflecting region  304  is not formed on the inner side of the black region  308 . In this case as well, the light reflecting region  304  is formed between the coloring region  306  and the interior region  302 . 
     In this case, the thickness of the black region  308  in the normal direction may be smaller than the thickness of the light reflecting region  304  and the coloring region  306  combined. For example, in  FIG. 4B , a configuration of when the thickness of the black region  308  in the normal direction is made the same as the coloring region  306  is illustrated. A region  312  different from the black region  308  is further formed between the black region  308  and the interior region  302 . In this case, for example, consideration is made to forming a transparent region formed with the clear ink, and the like for the region  312 . When configured in such manner as well, the influence of the light passing through the interior of the 3D object  50  and exiting to the opposite side can be appropriately suppressed by forming the interior region  302  with the color having light absorbing property. 
     INDUSTRIAL APPLICABILITY 
     The present disclosure can be suitably used for, for example, the shaping device.