Patent Publication Number: US-2022225713-A1

Title: Ready-to-use eyelash extensions

Description:
This application claims priority as a continuation in part of U.S. patent application Ser. No. 17/409,705 filed on Aug. 23, 2021, presently pending, which in turn claimed priority to U.S. Provisional 63/068,728, filed on Aug. 23, 2021, presently expired, each of which is incorporated herein by reference in its entirety. 
    
    
     BACKGROUND 
     1. Field 
     The field of the invention is an artificial eyelash extension system and method for applying same, and more particularly but not exclusively, eyelash filaments having a pre-applied adhesive element. 
     2. Description of the Related Art 
     Artificial eyelash extension systems are popular products that are used to improve the look of a user&#39;s natural eyelashes line through the addition of eyelashes length and/or volume. Such artificial eyelash extension systems typically comprise a support strip with eyelash filaments extending from there. The eyelash filaments can be made from mink, synthetic materials, horsehair, and in some instances, human hair. Artificial eyelash extension systems are typically applied by spreading adhesive on or around the support strip component of an artificial eyelash extension system and pressing the support strip to a user&#39;s eyelash line or proximate thereto. Such artificial eyelash extension systems can be difficult to apply and require that a user have access to both the artificial eyelash extension systems and specialized adhesives. 
     More recently, do-it-yourself, under-lash eyelash extension systems have been developed. In these systems, a support strip of eyelash extensions is glued to the underside of a user&#39;s natural eyelashes in a similar fashion to more traditional above-eyelash extension systems. The do-it-yourself systems often come in small sections (e.g., wisp lashes, cluster lashes, individual lashes), allowing for an inexperienced user to apply the artificial eyelash extension systems without the difficulty of aligning a longer, single strip of eyelash extensions. However, these do-it-yourself systems still require the user to have and apply specialty adhesive either to their lashes or to the artificial eyelash extension system before use. 
     A need exists in the art for artificial eyelash extension systems that eliminate the difficulties of prior art systems. A need also exists for a means that easily facilitates a user to apply artificial eyelash extension systems without the drawbacks of existing systems. 
     SUMMARY 
     An object of the invention is to create artificial eyelash extension systems that overcome many of the drawbacks in the prior art. A feature of the invention is that the artificial eyelash extension systems have pre-applied adhesive elements before being packaged for sale to a user. An advantage of the invention is that the artificial eyelash extension system is ready to use without the need for any additional supplies such as glue. An additional advantage of the invention is that the user can apply the invented artificial eyelash extension system quickly and with one hand. 
     A further object of the invention is to provide a ready-to-use artificial eyelash extension system having a pre-applied adhesive that is easy for a user to apply. A feature of the invention is that the pre-applied adhesive is droplets of adhesive applied to the eyelash filaments of the artificial eyelash extension system. Alternatively, the invention features double-sided tape as the pre-applied adhesive. An advantage of the invention is that users can apply the invented artificial eyelash extension system without modifying the pre-applied adhesive. 
     Another object of the invention is to maintain a ready-to-use artificial eyelash extension system in usable condition before use. A feature of the invention is the use of temporary overlayment of a pre-applied adhesive element that is removed before the use of the artificial eyelash extension system. An advantage of the invention is that the pre-applied adhesive elements of the artificial eyelash extension system are maintained in clean condition for use by a user. 
     Yet another object of the invention is to provide an artificial eyelash extension system that is easily applied by a user onto their natural eyelashes. A feature of the invention is that the artificial eyelash extension system adheres directly to the natural eyelashes of a user at a position not directly adjacent to the eyelid of a user. An advantage of the invention is that by adhering the artificial eyelash extension system to the eyelashes of a user in a position spaced from the eyelid, the user avoids any pain and skin irritation associated with artificial eyelash extension systems that are applied to the skin of the eyelid or adjacent thereto. 
     The invention provides an artificial eyelash extension system comprising a plurality of eyelash filaments, each having a base and a tip; a support strip attached to the bases of the eyelash filaments, an adhesive element applied to the plurality of the eyelash filaments and/or the support strip before the artificial eyelash extension system is packaged for sale to a user. 
     Also provided is a method for applying artificial eyelash extension systems comprising providing to a user an artificial eyelash extension system already having an adhesive element disposed on the artificial eyelash extension system before being packaged for sale to the user, moving the adhesive element of the artificial eyelash extension system into contact with the user&#39;s natural eyelashes. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention, together with the above and other objects and advantages, will be best understood from the following detailed description of the preferred embodiment of the invention shown in the accompanying drawings, wherein: 
         FIG. 1A  depicts a perspective view of an artificial eyelash extension system having pre-applied adhesive elements in accordance with the features of the invention; 
         FIG. 1B  depicts a perspective view of an alternative embodiment of an artificial eyelash extension system having pre-applied adhesive elements in accordance with the features of the invention; 
         FIG. 1C  depicts a perspective view of an alternative embodiment of an artificial eyelash extension system having pre-applied adhesive elements in accordance with the features of the invention; 
         FIG. 1D  depicts a perspective view an embodiment of an artificial eyelash extension system having pre-applied adhesive elements overlaid by a temporary backing in accordance with the features of the invention; 
         FIG. 2A  depicts a perspective view of an embodiment of an artificial eyelash extension system having an alternative pre-applied adhesive element in accordance with the features of the invention; 
         FIG. 2B  depicts a perspective view of the invention embodiment shown in  FIG. 2A  featuring a temporary overlayment of the adhesive elements in accordance with the features of the invention; 
         FIG. 2C  depicts a perspective view of the invention embodiment shown in  FIG. 2B  featuring an alternative embodiment of temporary overlayment of the adhesive elements, in accordance with the features of the invention; 
         FIG. 3A  depicts a schematic of using the artificial eyelash extension system depicted in  FIG. 1A  in accordance with the features of the invention; 
         FIG. 3B  depicts a schematic of using the artificial eyelash extension system depicted in  FIG. 2A  in accordance with the features of the invention; 
         FIGS. 4A-4K  depict plan views of alternative embodiments of artificial eyelash extension systems having adhesive elements in accordance with the features of the invention; 
         FIG. 5A  depicts a plan view of an embodiment of an adhesive element stack in accordance with the features of the invention; and 
         FIG. 5B  depicts a cross-sectional view of the adhesive element stack of  FIG. 5A . 
     
    
    
     DETAILED DESCRIPTION 
     In various embodiments, the invention provides a ready-to-apply artificial eyelash extension system. The artificial eyelash extension system comprises eyelash filaments extending from a support strip wherein the eyelash filaments feature adhesive elements for attachment to the natural eyelashes of a user. The artificial eyelash extension system may be referred to as a lash extension system or an eyelash extension system. 
     The foregoing summary, as well as the following detailed description of certain embodiments of the present invention, will be better understood when read in conjunction with the appended drawings. 
     As used herein, an element or step recited in the singular and proceeded with the word “a” or “an” should be understood as not excluding plural said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to “one embodiment” of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments “comprising” or “having” an element or a plurality of elements having a particular property may include additional such elements not having that property. 
     The phrases “lash,” “artificial eyelash,” and “eyelash,” as used herein, are interchangeable and refer to an apparatus that is not part of the wearer&#39;s body unless specifically indicated otherwise (e.g., phrases such as “natural eyelash” or “user&#39;s eyelash” refer to a part of the wearer&#39;s body). 
     Turning to the figures,  FIG. 1A  depicts a perspective view of one embodiment  10  of the invented artificial eyelash extension system. The artificial eyelash extension system may include a plurality of artificial eyelash filaments, a support strip, and an adhesive element. The artificial eyelash extension system comprises a support strip  12  having a length L and width W. (The width W is a representation and not drawn to scale and may be narrower.) The support strip  12  may be attached to the bases of the eyelash filaments. The support strip  12  has a leading edge from which eyelash filaments  14  extend. The width W of the support strip  12  extends between the proximal  12   a  and distal  12   b  of the support strip  12 . As shown in  FIG. 1A , the artificial eyelash extension system  10  features eyelash filaments  14  extending between a base  16  and tip  18 . The bases  16  of the eyelash filaments  14  are embedded within and/or adhered to the support strip  12 . In the exemplary embodiment shown in  FIG. 1A , the bases  16  of the eyelash filaments  14  are spaced apart, with the eyelash filaments  14  extending away from the support strip  12  such that the lengths of the eyelash filaments  14  are substantially parallel and extending in a direction that is substantially perpendicular to the length L of the support strip  12 . 
     While in  FIG. 1A , the width W of the support strip  12  is about ten percent of the length of the eyelash filaments  14 ; in other embodiments, the width W of the support strip  12  is much smaller than the eyelash filaments  14 . For example, in some embodiments, the width W is less than five percent of the length of the eyelash filaments  14 . The larger width W is shown only for illustration purposes and to be able to show the structure of the support strip  12 . 
     As can be appreciated from  FIG. 1A , the eyelash filaments  14  have a variable length and arrangement. Some eyelash filaments  14  are substantially parallel, while other eyelash filaments  14  cross each other. The eyelash filaments  14  will have an average length resulting in a desired overall appearance of length of the eyelashes after application, in one embodiment. 
     The eyelash filaments  14  are made from conventional materials used in eyelash extensions. Suitable materials include materials having an appearance similar to human eyelashes. Exemplary materials include mink, horsehair, human hair, synthetic materials, and combinations thereof. 
     Materials used in the support strip  12  are well known in the art and include any suitable material for the attaching of the bases of eyelash filaments  14 . Exemplary materials include PBT, nylon, cotton, silk, and combinations thereof. 
     A salient feature of the invented artificial eyelash extension system  10  is the inclusion of an adhesive element  20  disposed on the eyelash filaments  14 . The adhesive element  20  may be applied before the artificial eyelash extension system is packaged for sale to a user, to the plurality of the eyelash filaments. The adhesive element  20  may be applied at a position between the support strip and one-half the eyelash filaments&#39; average length away from the support strip. The adhesive element  20  may be applied continuously to a predetermined location that is less than half of the eyelash filaments&#39; average length away from the support strip. At least some of the adhesive element  20  is applied to the eyelash filaments  14  at the time of manufacturing of the system.  FIG. 1A  shows the adhesive element  20  disposed on each eyelash filament  14 . The depiction of the location of the adhesive element  20  is meant to be exemplary and non-limiting. In the figures, the adhesive element  20  is shown as discrete droplets of adhesive. However, that depiction should not be limiting. While in  FIG. 1A , all eyelash filaments  14  are shown with an applied adhesive element  20 . In some embodiments, not all eyelash filaments  14  will receive adhesive. In one embodiment, between one-half and three-fourths of all eyelash filaments comprising the artificial eyelash extension system receive the adhesive element. In other embodiments, the plurality of eyelash filaments comprises multiple layers, and the adhesive may be applied to only one layer of eyelash filaments (e.g., the top layer), which comes in contact with the user&#39;s natural eyelash. However, even if the adhesive is applied to only the one layer of eyelash filament (e.g., the top layer), the adhesive may penetrate into the remaining layers. 
     A benefit of the adhesive element  20  is that the artificial eyelash extension system is ready to use without applying external adhesive, as will be described below. 
     While the figures depict the artificial eyelash extension system as being used in conjunction with a full-strip artificial eyelash extension system, the same ready-to-use adhesive concepts may be used in conjunction with artificial eyelash extension systems of various styles, lengths, and sizes, such as smaller “wisp” eyelash systems (e.g., KISS Falscara Eyelash made by Kiss Products, Inc. located in Port Washington, N.Y.) that are segmented versions of a full-strip eyelash systems and whose support strip lengths are one-half to one-fifth of a full-strip eyelash extension system&#39;s support strip length, or even smaller “cluster” eyelash systems (e.g., KISS Lash Couture LuXtensions, also made by Kiss Products, Inc.), or the smallest “flare” or “individual” eyelash systems (e.g., KISS i⋅ENVY Ultra Black Flare Short/Medium/Long, KISS i⋅ENVY Ultra Black 3D Individual Lash Medium/Long, all of which are also made by Kiss Products, Inc.) that may include only a few eyelash filaments  14  attached together at their bases. 
     The adhesive element  20  can be disposed on a plurality of eyelash filaments  14  across the entire length L of the support strip  12  or some fraction of the eyelash filaments  14 , such as two-thirds, one-half, or one-third. It will be apparent to one having ordinary skill in the art that the fraction of eyelash filaments  14  having the adhesive elements disposed thereon can be adjusted according to the weight of the section of artificial eyelash extension system  10  being used. For example, an artificial eyelash extension system  10  designed for application to all of a user&#39;s natural eyelashes may require that all the eyelash filaments  14  have corresponding adhesive elements. Alternatively, an artificial eyelash extension system  10  designed for attachment to some lesser portion of a user&#39;s natural lashes may only require that one half or a smaller proportion of eyelash filaments  14  bear corresponding adhesive elements. For example, the artificial eyelash extension system  10  can be a wisp, cluster, flare, or individual eyelash extension system. 
     As depicted in  FIG. 1A , the adhesive element  20  can be discrete applications or droplets of an adhesive. The adhesive element  20  may be comprised of multiple discrete droplets of adhesive. The adhesive element  20  may be applied to an upward-facing surface of the eyelash filaments. In an embodiment, the adhesive element  20  is disposed at approximately the same position along the length of each eyelash filaments  14  away from the support strip  12 .  FIG. 1A  shows the adhesive element  20  as small, flat sections of adhesive overlaying a portion of the eyelash filaments  14 . In alternative embodiments, the adhesive element  20  may be non-cured droplets of adhesive. 
     Suitable adhesive elements for use in the instant invention include any adhesive that can be applied to the eyelash filaments  14  and retain stickiness while the artificial eyelash extension system  10  is stored in packaging. Suitable adhesive elements can be applied to eyelash filaments  14 , then stored without drying. 
       FIG. 1A  shows the adhesive element  20  as discrete applications of adhesive on the eyelash filaments  14 . An alternative embodiment  30  is shown in  FIG. 1B . The artificial eyelash extension system  30  shown in  FIG. 1B  features adhesive elements  32  extending continuously along the length of the eyelash filaments  14  starting from the support strip  12  to a defined position. In some embodiments, the length along the eyelash filaments  14  covered by the adhesive elements  32  is customized to the weight and other attributes of an artificial eyelash extension system using the invented system. Preferably, the adhesive elements  32  will extend continuously on the first half to one-third of the average length of the eyelash filaments that extend from the support strip (i.e., the length of the eyelash filament embedded in the support strip is not included in this length). In alternative embodiments, the adhesive elements  32  are disposed continuously along lengths of the eyelash filaments  14  where the length is not proximate to the support strip (i.e., middle and tip portions of eyelash filaments). Yet, in another embodiment, the adhesive elements  32  may be applied continuously from a position between the support strip  12  and one-half of the eyelash filaments&#39;  14  average length. In other embodiments, the position is selected up to one-half of the eyelash filaments&#39; average length from the support strip  12 . 
       FIGS. 1A and 1B  show the eyelash filaments  14  in the same direction and having similar lengths. In alternative embodiments, such as the exemplary eyelash extension section  40  shown in  FIG. 1C , the eyelash filaments  14  extend in different directions from the support strip  12  and can have different lengths. The eyelash filaments  14  may extend from the support strip  12  such that at least some of the eyelash filaments  14  overlap or cross one another. In one embodiment, the eyelash filaments  14  may extend from the support strip  12  such that at least one-quarter of the eyelash filaments  14  overlap or cross one another. The embodiment shown in  FIG. 1C  can utilize both the continuous and discrete applications of adhesive elements  14  shown in  FIGS. 1A and 1B . 
       FIG. 1D  shows yet another embodiment  50  of the invented artificial eyelash extension system. In this embodiment, the adhesive elements ( 20  or  32  above) are overlaid with an elongated substrate  52 . The elongated substrate  52  may further include removably overlaying the adhesive elements  20 . The elongated substrate  52  is a thin piece of material that is in removable contact with the adhesive elements  20  disposed on the eyelash filaments  14 . The elongated substrate  52  of the adhesive elements  20  maintains the cleanliness of the adhesive elements  20  on the artificial eyelash extension system  50  before a user is ready to apply the artificial eyelash extension system  50  and prevents the artificial eyelash extension system  50  from tangling or getting stuck to undesired surfaces or objects. 
     In the embodiment depicted in  FIG. 1D , the bond between the eyelash filaments  14  and the adhesive elements  20  is stronger than the bond between the adhesive elements  20  and the elongated substrate  52 . This relationship of bond strength corresponds with the ability of a user to peel off the elongated substrate  52  from the adhesive elements  20  without removing the adhesive elements  20  from the eyelash filaments  14  or otherwise damaging the artificial eyelash extension system  50 . 
     In an embodiment, the strength of the adhesion between the adhesive elements  20  and the elongated substrate  52  is tuned by selecting the thickness of an adhesive applied to the surface of the elongated substrate  52  that contacts the adhesive elements  20 . Using particular adhesives on the elongated substrate  52 , applying a thin layer of adhesive allows for easy removal of the elongated substrate  52  from the adhesive elements  20 , while a thicker layer of adhesive will increase the strength of the bond between the elongated substrate  52  and the adhesive elements  20 . 
     In another embodiment, the strength of the adhesion between the adhesive elements  20  and the elongated substrate  52  is tuned by applying a pre-glue (an adhesive that does not completely coalesce during storage of the stored artificial eyelash extension system) to the surface of the elongated substrate  52  that is in contact with the adhesive elements  20 . 
       FIGS. 1A-D  show the adhesive elements applied on an upward-facing surface of the eyelash filaments  14  of an artificial eyelash extension system. In these configurations, the invented artificial eyelash extension system is removably attached to the underside of a user&#39;s natural lashes. In alternative embodiments, the adhesive elements are disposed on a downward-facing surface of the eyelash filaments  14  of an artificial eyelash extension system. In this alternative embodiment, the artificial eyelash extension system can be removably attached to the top of a user&#39;s natural eyelashes. 
       FIG. 2A  shows another embodiment  60  of the invented artificial eyelash extension system. This embodiment  60  features the same configuration of eyelash filaments  14  and support strip  12  as the embodiment shown in  FIG. 1A . In this embodiment, however, the adhesive element  61  in this embodiment  60  is an elongated substrate  62  disposed across the eyelash filaments  14  such that the longitudinal axis x of the elongated substrate  62  is parallel with the length L of the support strip  12 . The elongated substrate  62  may also be shorter than the length L of the support strip  12 . 
     As shown in  FIG. 2A , the elongated substrate  62  is disposed across the eyelash filaments  14  in a direction perpendicular to the length of the eyelash filaments  14 . The adhesive element  61  may comprise an elongated substrate  62  having a longitudinal axis, an upward-facing surface  66 , a downward-facing surface  64 , and an adhesive disposed on the upward-facing and downward-facing surfaces  66  and  64 , wherein the adhesive on the downward-facing surface  64  contacts the eyelash filaments  14 . The adhesive used on the upward-facing and downward-facing surfaces  66  and  64  of the elongated substrate  62  may be different. The lash extension system or artificial eyelash extension system may be adapted for the removal of the elongated substrate  62  from the user&#39;s eyelashes without removing the elongated substrate  62  from the eyelash filaments  14 . The downward-facing surface  64  of elongated substrate  62  is secured to the eyelash filaments  14 . The upward-facing surface  66  of the elongated substrate  62  features an adhesive or other sticky substance disposed thereon. 
     A person having ordinary skill in the art will readily appreciate that the elongated substrate  62  can be positioned across the eyelash filaments  14  anywhere along their length. Preferably, the elongated substrate  62  is positioned with its centerline (line χ in  FIG. 2A ) disposed on the eyelash filaments  14  at a position corresponding to one-third to one-half of the length of the eyelash filaments  14  extending from the support strip  12 . This positioning of the elongated substrate  62  is exemplary and not meant to be limiting. The elongated substrate  62  can reasonably be positioned over any portion of the eyelash filaments  14 . 
     The elongated substrate  62  can be any suitable material for overlaying the eyelash filaments  14  without overly weighing down the lashes and without bending the lashes when worn by a user. Suitable materials for the elongated substrate  62  include double-sided tape and other types of thin strips with adhesives applied to both sides. 
     A salient feature of this embodiment is the ability of a user to obtain the artificial eyelash extension system  60  and use it without applying their own adhesives either to the artificial eyelash extension system or their lashes. To enable this feature, the artificial eyelash extension system  60  has to be ready to use when desired by a user. As such, the artificial eyelash extension system  60  should not be stuck to undesired surfaces or objects and should feature clean adhesive disposed on the upward-facing surface  66  of the elongated substrate  62 . In order to maintain the artificial eyelash extension system  60  in a ready-to-use configuration, a backing (second elongated substrate)  72  is removably secured to the adhesive distributed over the upward-facing surface  66  of the elongated substrate  62 . The embodiment  60  overlaid by the backing  72  is shown in the embodiment  70  shown in  FIG. 2B . This backing  72  is a temporary overlayment on the adhesive on the upward-facing surface  66  of the elongated substrate  62  that prevents the artificial eyelash extension system  60  from sticking to undesired objects or becoming entrained with debris that would undermine the stickiness or appearance of the adhesive. 
     The backing  72  is double-sided in one embodiment. The backing  72  can be removably secured to the adhesive distributed over the upward-facing surface  66  of the elongated substrate  62 , can be made from any material suitable for the temporary overlayment of the adhesive on the elongated substrate  62 . Suitable materials include paper, plastic, fiber, and combinations thereof. 
     In an embodiment featuring the backing  72 , the bond between the backing  72  and the first elongated substrate  62  is weaker than the bond between the first elongated substrate  62  and the eyelash filaments  14 . This can be accomplished by, for example, forming a permanent or semi-permanent bond between the first elongated substrate  62  and the eyelash filaments  14  and a temporary or removable bond between the backing  72  and the first elongated substrate  62 . Alternatively, the adhesive contacting surface of the backing  72  is scored, frosted, or otherwise treated to prevent over sticking. These configurations are exemplary and not meant to be limiting. A person having ordinary skill in the art will understand that any configuration is suitable wherein the second elongated substrate (backing  72 ) can be removed from overlayment of the first elongated substrate  62  without ripping the first elongated substrate  62  from the eyelash filaments  14 . 
       FIG. 2C  shows the invented artificial eyelash extension system  70  shown in  FIG. 2B  with the addition of an element that facilitates the removal of the backing  72  from the elongated substrate  62 . As shown in  FIG. 2C , the backing  72  can feature a terminating end  72   a  that extends past the periphery of the artificial eyelash extension system and defines a tab  74 . The tab  74  of the backing  72  can be the same shape as the rest of the backing  72 . Alternatively, as shown in  FIG. 2C , the tab  74  of the backing  72  can feature a different and larger shape, such as a circular shape that gives a user a larger area to grab. In use, a user can grab the tab  74  and pull it toward the opposing end of the backing  72  to remove the backing  72  from the artificial eyelash extension system  70 . 
       FIG. 3A  depicts a schematic of a method of using the embodiment of the invention featured in  FIG. 1A . The method for applying artificial eyelash extension systems may comprise providing to a user an artificial eyelash extension system already having an adhesive element disposed on the eyelash extension system before being packaged for sale to the user and moving the adhesive element of artificial eyelash extension system into contact with the user&#39;s natural eyelashes. The step of moving the adhesive element of the artificial eyelash extension system into contact with the user&#39;s natural eyelashes may comprise contacting an underside of the user&#39;s natural eyelashes with the adhesive element disposed on the upward-facing surface of the elongated substrate. In the method, the user grasps the tip  18  of eyelash filaments  14  and positions the artificial eyelash extension system  10  under the natural eyelashes  80  to receive the artificial eyelash extension system  10 . The natural eyelashes  80  are the user&#39;s eyelashes in the depicted embodiment. The user then moves the artificial eyelash extension system  10  upward so that the adhesive elements  20  of the eyelash filaments  14  contact the user&#39;s natural eyelashes  80 . 
     The adhesive elements  20  of the artificial eyelash extension system  10  can contact any portion of the underside of a user&#39;s natural eyelashes  80 . Preferably, the adhesive elements  20  of the artificial eyelash extension system  10  are put into contact with the user&#39;s natural eyelashes  80  such that the support strip  12  of the artificial eyelash extension system underlies the underside of a user&#39;s natural eyelashes  80  or their eyelid. 
     A user applying any of the embodiments of the artificial eyelash extension system described herein using an eyelash applicator such as the KISS Falscara Eyelash Applicator made by Kiss Products, Inc., located in Port Washington, N.Y. The Kiss applicator is one suitable eyelash applicator for use with the instant invention and is not meant to be limiting. A person having ordinary skill in the art will understand that many false lash applicators are suitable for use with the instant invention. Alternatively, a user may use their hand to grasp the invented artificial eyelash extension system and move it into contact with the user&#39;s natural lashes. 
     A salient feature of the instant invention is its ready-to-use nature. Prior art lash systems require applying a bonding solution to the artificial eyelash extensions and/or the natural lashes of a user before application. The pre-applied adhesive elements are suitable for immediate application to a user&#39;s lashes without further preparation of the artificial eyelash extension system or the user&#39;s natural eyelashes. 
     After moving the artificial eyelash extension system into contact with their natural eyelashes, the invented artificial eyelash extension system will stay in place without any further pressing using their hand or an applicator. Further, no additional bonding solutions need to be applied. Once the invented artificial eyelash extension system is in place, the user can optionally use the applicator or hand to adjust the precise position of the artificial eyelash extension system or firmly squeeze the adhesive elements and natural eyelashes together. Surprisingly and unexpectedly, the inventors have discovered that the step of firmly pressing together their natural eyelashes and adhesive elements from the artificial eyelash extension system is not necessary as it was in prior art systems. Similarly, the instant invention does not require the sandwiching of natural eyelashes between an artificial eyelash extension system on the top of the lashes and one on the bottom of the lashes in order to form a lasting bond as is found in the prior art. Another significant feature of the instant invention is that the artificial eyelash extension systems described herein can be applied using only one hand. 
     Use of Lash Extensions 
       FIG. 3A  shows a general schematic for using the invented artificial eyelash extension system once the adhesive elements are exposed. The embodiment shown in  FIG. 1D , for example, first requires the removal of the temporary overlayment of its adhesive elements prior to adhering the artificial eyelash extension system to the natural eyelashes of a user. A benefit of the artificial eyelash extension system is that the extension can be worn without the application of additional adhesive. 
       FIG. 3B  shows a schematic of a method of using the embodiment of the artificial eyelash extension system shown in  FIG. 2A . Similar to the schematic shown in  FIG. 3A , the application of the artificial eyelash extension system shown in  FIG. 2A  only requires one step, grasping the end of the eyelash filaments with a hand or applicator and moving the adhesive elements into contact with the desired portion of a user&#39;s natural eyelashes. 
     The adhesive element may further include a second elongated substrate temporarily overlaying the adhesive element disposed on the upward-facing surface of the elongated substrate, and wherein that second elongated substrate is removed before moving the adhesive element of the artificial eyelash extension system into contact with the user&#39;s natural eyelashes. Where the adhesive elements of the artificial eyelash extension system shown in  FIG. 2B  are overlaid with a backing (second elongated substrate), the backing is removed prior to application of the artificial eyelash extension system to a user&#39;s natural eyelashes. 
     After the application step in  FIGS. 3A, and 3B , the user wears the invented artificial eyelash extension system for a period of up to 24 hours. After wear, the user then grasps the unattached end of the worn artificial eyelash extension system and gently pulls downward in order to remove the artificial eyelash extension system from their eyelashes. The artificial eyelash extension systems can then be stored for reuse. The artificial eyelash extension systems, once removed, can be reused until their associated adhesive elements wear out. Alternatively, the original adhesive elements of the invented artificial eyelash extension system can be rejuvenated or removed and replaced with new adhesive elements. Where a user removes the original adhesive elements from the invented artificial eyelash extension system, the stripped system can then continue to be used as an artificial eyelash extension system wherein a user applies their own glue. 
     The figures show the artificial eyelash extension system having a length that approximates the length of a user&#39;s eyelid. This is exemplary and not meant to be limiting. In an embodiment, a user will apply only one artificial eyelash extension system that removably underlies all or substantially all of a user&#39;s natural eyelashes. In such an embodiment, a user needs only apply one artificial eyelash extension system to their natural eyelashes. In alternative embodiments, the length of the support strips will be shorter and will require a user to apply more than one artificial eyelash extension system in order to removably underlie all or substantially all their eyelashes. In yet another embodiment, a user will cut a longer strip of artificial eyelash extension systems into a plurality of artificial eyelash extension systems having desired lengths, forming a cluster of artificial eyelash extension systems. 
     In one embodiment, the steps of use include applying additional glue, drying, and applying heat. The heat-activated adhesive becomes more pliant when heated. In this embodiment, the users will apply heat by using a heat applicator. In one embodiment, the heat applicator is a small heater included in the package. In another embodiment, the source of heat is a force-activated heat pack. In another embodiment, the heat source comprises a layer of material that heats up when exposed to the electromagnetic radiation found in a microwave oven. 
     When dried on the eyelash filaments, the glue is substantially solid. When heated, the glue changes states to a somewhat liquid or soft-jello-like, jelly-like, or pudding-like state. While in this state, the application to natural eyelashes is more comfortable. 
     Alternative Embodiments of Artificial Eyelash Extension System Having Adhesive Element 
       FIG. 4A  shows another embodiment of an invented artificial eyelash extension system having an adhesive element. The artificial eyelash extension system  80  of this embodiment features the same configuration of eyelash filaments  14  and support strip  12  as the embodiment shown in  FIG. 1A . In this embodiment, however, an adhesive element  82  having a fork shape including a head  84  and a plurality of spears  86  is disposed on the artificial eyelash extension system  80 . As shown in  FIG. 4A , the head  84  of the adhesive element  82  is disposed to cover one side of the support strip  12  along the longitudinal direction of the support strip  12  (i.e., y-axis). Further, in  FIG. 4A , a plurality of spears  86  are disposed to cover one side of the eyelash filaments  14  along the longitudinal direction of the eyelash filaments  14  (i.e., x-axis). The adhesive element  82  having the head  84  and the plurality of spears  86  may be configured as a single adhesive substrate. Otherwise, the adhesive element  82  may be configured as separate adhesive substrates combined. In one embodiment (not shown), the head  84  and respective spears  86  may each be a single adhesive substrate separated from each other. In another embodiment (not shown), separate adhesive substrates, which respectively include one or more of spears  86  and a part of the head  84 , may be combined to form the adhesive element  82 . 
     The adhesive element  82  may be any suitable adhesive material, such as, for example, a doubled-sided tape, a glue sticker, etc. The adhesive element  82  has an upward-facing surface and a downward-facing surface, wherein the downward-facing surface contacts the eyelash filaments  14 . Further, the downward-facing surface has an adhesive property that can be secured to the support strip  12  and/or the eyelash filaments  14 , and the upward-facing surface has an adhesive property that can be put in contact with the user&#39;s natural eyelashes such that the artificial eyelash extension system  80  can adhere to a user&#39;s natural eyelashes (e.g., the underside of the user&#39;s natural eyelashes). In one embodiment, the strength of adhesion of the upward-facing surface and the strength of adhesion of the downward-facing surface may be same or different. For example, the strength of adhesion of the upward-facing surface and the strength of adhesion of the downward-facing surface may be determined such that the adhesive element  82  does not detach from the artificial eyelash extension system  80  while allowing the user to easily wear or remove the artificial eyelash extension system  80  from the user&#39;s natural eyelashes without applying their own adhesives either to the artificial eyelash extension system  80  or the user&#39;s natural eyelashes. 
     The x-axis dimension and the y-axis dimension of the head  84  and the x-axis dimension and the y-axis dimension of the spear  86  are not limited to those illustrated in  FIG. 4A , and they may be variously determined according to the particular style of an artificial eyelash extension system. For example, the x-axis dimension or the y-axis dimension of the head  84  may be less than, respectively, the x-axis dimension or the y-axis dimension of the support strip  12 . Further, the x-axis dimension of the spear  86  may be greater than the x-axis dimension of some of the eyelash filaments  14 . Although  FIG. 4A  shows that the adhesive element  82  comprises four spears  86 , the present embodiment is not limited thereto, and the adhesive element  82  may comprise any number of spears  86 . 
     The adhesive element  82  may be manufactured, packaged, transported and stored separately from the artificial eyelash extension system  80  prior to being combined with the artificial eyelash extension system  80 . That is, during the manufacturing process, the adhesive element  82  is combined with an artificial eyelash extension system  80  so that users can wear it without applying their own adhesive. This process will be described in detail with reference to  FIGS. 5A, 5B , and  FIGS. 6A-6D . 
       FIGS. 4B-4K  are diagrams showing various other embodiments of the artificial eyelash extension systems having adhesive elements. For simplicity, portions overlapping with those described above with reference to  FIG. 4A  will be omitted, but the omitted portions can be similarly applied to the below embodiments of  FIGS. 4B-4K . 
       FIG. 4B  shows an embodiment having a same configuration as that of  FIG. 4A  except that a plurality of spears  96  included in an adhesive element  92  are disposed along the y-axis dimension of the support strip  12  so that the roots  97  of the eyelash filaments  98  at both ends of the support strip  12  are covered by the spears  96 . As mentioned above in  FIG. 4A , the x-axis dimension and the y-axis dimension of the head  94  and the x-axis dimension and the y-axis dimension of the spear  96  are not limited to those illustrated in  FIG. 4B , and they may be variously determined according to the particular style of an artificial eyelash extension system. For example, although  FIG. 4B  shows that the x-axis dimension of the spear  96  is greater than that of the eyelash filament  14 , the embodiment is not limited thereto, and the x-axis dimension of the spear  96  may be less than that of the eyelash filaments  14 . 
       FIG. 4C  shows an embodiment, in which an adhesive element  102  has spears  106 ,  108  of various lengths. The adhesive element  102  is configured by alternatively arranging long spears  106  having the first length and short spears  108  having the second length on the eyelash filaments  14 , wherein the first length is longer than the second length in x-axis. The ratio of the numbers of the long spear  106  and the short spear  108  illustrated in  FIG. 4C  is merely an example, and the present embodiment is not limited thereto, and the ratio of the numbers of the long spear  106  and the short spear  108  may be variously determined according to the particular style of an artificial eyelash extension system. Likewise, there may be two or more spears of a certain length followed by two or more spears or another length (e.g.,  FIGS. 4D and 4E ), multiple spears of multiple lengths, or any other arrangement where the spears have varying lengths from one another. 
       FIG. 4D  shows an embodiment, in which an adhesive element  112  is configured to form the arch shape as a whole by appropriately arranging long spears  116  having the first length and short spears  118  having the second length on the eyelash filaments  14 , wherein the first length is longer than the second length in x-axis. The number and arrangement of the long spears  116  and the short spears  118  are not limited to the those illustrated in  FIG. 4D , and the long spears  116  and the short spears  118  may be arranged with various modifications, including the adhesive element  112  shown in  FIG. 4D , which forms the arch shape as a whole. 
       FIG. 4E  shows an embodiment, in which an adhesive element  122  is configured by alternately arranging a group of long spears  126  having the first length and a group of short spears  128  having the second length on the eyelash filaments  14 , wherein the first length is longer than the second length in x-axis. The groups of long spears  126  are arranged on the eyelash filaments  14  of both edges of the artificial eyelash extension system  80 . In  FIG. 4E , although the long spears  126  and the short spears  128  are grouped by two, the present embodiment is not limited thereto, and they may be grouped in various numbers according to an exemplary embodiment. 
       FIG. 4F  shows another embodiment, in which a plurality of adhesive elements  132  having an angled-C shape are disposed on the artificial eyelash extension system  80 . In one embodiment, each of the adhesive elements  132  may be configured as a single adhesive substrate. Otherwise, each of the adhesive elements  132  may be configured as separate adhesive substrates combined. Although  FIG. 4F  shows that the adhesive elements  132  are disposed to cover all of the eyelash filaments  14 , the present embodiment is not limited thereto, and the number of the adhesive elements  132  may be determined to cover just some of the eyelash filaments  14 . 
       FIG. 4G  shows an embodiment in which an adhesive element  142  having a rectangular shape is disposed on the artificial eyelash extension system  80 . In one embodiment, the adhesive element  142  may be configured as a single adhesive substrate. Otherwise, the adhesive element  142  may be configured as separate adhesive substrates combined. Further, the x-axis dimension and y-axis dimension of each side of the adhesive element  142  are not limited to those illustrated in  FIG. 4G , and they may be variously determined according to the particular style of an artificial eyelash extension system. 
       FIG. 4H  shows an embodiment in which a first adhesive element  152  and a second adhesive element  154  are disposed on the artificial eyelash extension system  80 . The first adhesive elements  152  is disposed on the artificial eyelash extension system  80  with a predetermined spacing from the second adhesive element  154 . Otherwise, the first adhesive element  152  and second adhesive element  154  may be configured as a single adhesive substrate (as shown in  FIG. 4J ). Further, the x-axis dimensions and y-axis dimensions of the first and second adhesive elements  152 ,  154  are not limited to those illustrated in  FIG. 4H , and they may be variously determined, respectively, according to the particular style of an artificial eyelash extension system. 
       FIG. 4I  shows an embodiment in which a plurality of adhesive elements  162  are comprised of just the spears disposed on some of the eyelash filaments  14  without a head  84  of  FIG. 4A  disposing on the support strip  12 . Although  FIG. 4I  shows that the plurality of adhesive elements  162  are arranged to cover about half of the eyelash filaments  162 , the present embodiment is not limited thereto, and the plurality of adhesive elements  162  may be arranged to cover more or less than half of the eyelash filaments  14 . 
       FIG. 4J  shows an embodiment in which a perforated adhesive element  172  having a plurality of holes  178  is disposed on the artificial eyelash extension system  80 . The perforated adhesive element  172  is a single piece, but it can be made from multiple pieces of adhesive elements combined. The number of holes  178  is not limited to those illustrated in  FIG. 4J , and the number of holes  178  may be variously determined according to the particular style of an artificial eyelash extension system. Further, although the shape of the hole  178  is illustrated as a circular shape in  FIG. 4J , the present embodiment is not limited thereto, and the hole  178  may have various shapes, including oval, diamond, square, etc. 
       FIG. 4K  shows an embodiment in which an adhesive element  182  is configured by arranging spears  186  to overlap and cross one another (e.g., forming an X-shape). The adhesive elements  182  may be configured as a single adhesive substrate. Otherwise, the adhesive element  182  may be configured as separate adhesive substrates combined. 
     Adhesive Element and Accompanying Layers for Packaging 
     The aforementioned adhesive elements of  FIGS. 4A-4K  may be manufactured, packaged, transported, and stored separately from the artificial eyelash extension system in order to facilitate these processes and reduce costs.  FIG. 5A  is a plan view of an adhesive element stack prepared prior to attaching to the artificial eyelash extension system, and  FIG. 5B  is a cross-sectional view of the adhesive element stack of  FIG. 5A   
       FIG. 5A  shows that a plurality of adhesive element stack  200  is disposed on a substrate  300 . The substrate  300  is the surface of a product tray on which artificial eyelash extension systems with adhesive element stack  200  are placed during packaging. The illustrated shape of the adhesive element stack  200  is simplified for convenience of drawing and description and is not limited to  FIG. 5A , and the shape of the adhesive element stack  200  may vary according to the embodiments described above with reference to  FIGS. 4A-4K . 
       FIG. 5B  is a cross-sectional view of the adhesive element stack  200  of  FIG. 5A . As shown in  FIG. 5B , the adhesive element stack  200  may comprise multiple layers, including but not limited to a first double-sided tape  210 , a protective film  220 , and a second double-sided tape  230 . The second double-sided tape  230  is the adhesive elements of  FIGS. 4A-4K . As explained below, the protective film  220  is an optional layer. On Side B of the second double-sided tape  230  (or the adhesive element  230 ), an artificial eyelash extension system  240  is placed. The first double-sided tape  210  is placed on the substrate  300 , which is the surface of a product display tray on which artificial eyelash extension systems with adhesive elements are placed during packaging. As explained below, Side A of the second double-sided tape  230  (or the adhesive element  230 ) is to be adhered to a user&#39;s natural eyelashes. 
     As shown in  FIG. 5B , the first double-sided tape  210  is positioned above the substrate  300 . The first double-sided tape  210  serves to secure the adhesive element stack  200  to the substrate  300  during the transportation and storage of the artificial eyelash extension systems  240  with the adhesive element stacks  200  of the present invention 
     Optionally, the protective film  220  may be positioned above the first double-sided tape  210 . The protective film  220  is attached to Side A of the second double-sided tape  230  (or the adhesive element  230 ) to be later removed by the user to expose Side A of the second double-sided tape  230  (or the adhesive element  230 ), which is to be adhered to the user&#39;s natural eyelashes. One purpose of the protective film  220  can be to minimize any foreign materials, such as dust, from adhering to Side A of the second double-sided tape  230  (or the adhesive element  230 ) prior to application to the user&#39;s natural eyelashes. Another purpose of the protective film  220  can be to prevent the first double-sided tape  210  and the second double-sided tape  230  (or the adhesive element  230 ) from being unintentionally separated by securely coupling the first double-sided tape  210  and the second double-sided tape  230  (or the adhesive element  230 ). Further, the protective film  220  can also serve to allow only the second double-sided tape  230  (or the adhesive element  230 ) to be easily detached from the protective film  220  but not the first double-sided tape  210  from the substrate  300 . Although the protective film  220  and the first double-sided tape  210  are shown as separate components in  FIG. 5B , they may be provided as one component. In one embodiment, the protective film  220  and the first double-sided tape  210  may be replaced with a protective film with adhesive property on one side only. 
     The second double-sided tape  230  (or the adhesive element  230 ) may be positioned above the protective film  220 . In the manufacturing process, the second double-sided tape  230  (or the adhesive element  230 ) is attached to a support strip and/or eyelash filaments of an artificial eyelash extension system  240 . Accordingly, the second double-sided tape  230  (or the adhesive element  230 ) serves to secure the artificial eyelash extension system on the user&#39;s natural eyelashes on Side A. The shape of the second double-sided tape  230  (or the adhesive element  230 ) is not limited to  FIG. 5B , and it may be variously determined according to the embodiments described above with reference to  FIGS. 4A-4K . In one embodiment, the second double-sided tape  230  (or the adhesive element  230 ) may be formed through laser processing of an adhesive substrate. Specifically, the second double-sided tape  230  (or the adhesive element  230 ) may be formed by removing the portion of the space x in the adhesive substrate with a laser. 
     Although exemplary implementations of the invention have been depicted and described in detail herein, it will be apparent to those skilled in the relevant art that various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention and these are therefore considered to be within the scope of the invention as defined in the following claims. 
     It is to be understood that the above description is intended to be illustrative and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. While the dimensions and types of materials described herein are intended to define the parameters of the invention, they are by no means limiting but are instead exemplary embodiments. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” are used merely as labels, and are not intended to impose numerical requirements on their objects. Further, the limitations of the following claims are not written in means-plus-function format and are not intended to be interpreted based on 35 U.S.C. § 112, sixth paragraph, unless and until such claim limitations expressly use the phrase “means for” followed by a statement of function void of further structure.