Eyelash for grafting

By laser-cutting the eyelash body onto a thin sheet material and designing a reasonable projection shape for the bonding part, the problems of eyelash wearing comfort and processing efficiency are solved, achieving a lightweight, comfortable, and reliable eyelash design.

CN224125320UActive Publication Date: 2026-04-17QINGDAO AILEISHI FALSE EYELASH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO AILEISHI FALSE EYELASH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing eyelashes are uncomfortable to wear and do not easily maintain their curl. They are also time-consuming, labor-intensive, and costly to process.

Method used

The eyelash body is made of thin sheet material such as plastic, and is formed by laser cutting. The projection of the bonding part on the horizontal plane is designed to be circular, elliptical, polygonal or irregular. The structural design of the bonding part is combined to improve the bonding reliability and wearing comfort.

Benefits of technology

It achieves lightweight and comfortable eyelashes that are easy to maintain their curl, have a strong bond, and are highly efficient and cost-effective.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an eyelash wire for grafting, which comprises an eyelash wire body formed by cutting a thin sheet material, the root of the eyelash wire body comprises a bonding part used for being connected with human eyelashes, and the projection of the bonding part in a sheet shape on a horizontal plane is round, oval, polygonal or irregular. The utility model has the technical effects of reasonable structure, convenience in processing, good wearing comfort and firm bonding.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetic technology, specifically to an eyelash extension cord. Background Technology

[0002] Long, curved, dark, and vibrant eyelashes play a crucial role in the beauty of the eyes and even the overall appearance. Eyelashes arranged in a semi-circular shape can accentuate the contours of the eyes and enhance their expressiveness. False eyelashes are a type of eye cosmetic that can be applied to increase the density or length of eyelashes for a decorative effect.

[0003] In the existing technology, the cross-section of eyelashes is roughly circular or flat. Eyelashes with roughly circular cross-sections are often thicker and heavier, resulting in poor comfort when worn and difficulty in maintaining a curled state for a long time. Eyelashes with roughly flat cross-sections are usually formed by extrusion molding or chemical etching. Although this can improve wearing comfort and maintain the curl for a long time, the processing is time-consuming, labor-intensive, and costly. Utility Model Content

[0004] This utility model discloses an eyelash extension thread that solves the technical problems of poor wearing comfort, difficulty in maintaining curl, or time-consuming and labor-intensive processing in existing eyelash extension techniques. It features a reasonable structure, convenient processing, good wearing comfort, and reliable adhesion. The technical solution adopted is as follows:

[0005] An eyelash extension thread includes an eyelash thread body cut from a thin sheet of material. The root of the eyelash thread body includes an adhesive portion for attaching to human eyelashes. The adhesive portion, as a sheet, projects onto a horizontal plane in a circular, elliptical, polygonal, or irregular shape. It should be understood that the projection of the adhesive portion as a sheet onto a horizontal plane is generally circular, elliptical, polygonal, or irregular in shape. Polygons include triangles, quadrilaterals, and even polygonal shapes.

[0006] Based on the above technical solution, the adhesive part smoothly transitions with the adjacent eyelash body.

[0007] Based on the above technical solution, multiple planes are smoothly transitioned on the outer edge of the adhesive part.

[0008] Based on the above technical solution, the end of the eyelash body tapers to a sharp point. This sharpness includes both a state where the end of the eyelash body gradually narrows to a pointed angle, and a state where the end of the eyelash body gradually narrows and the pointed angle is removed, resulting in a flat end.

[0009] Based on the above technical solution, the adhesive part is provided with a groove or through hole to accommodate the adhesive for bonding with human eyelashes.

[0010] Based on the above technical solution, the outer edge surfaces on both sides of the adhesive portion are provided with recesses to accommodate the adhesive for bonding human eyelashes.

[0011] Based on the above technical solution, the projection of the adhesive part on the horizontal plane is an inverted triangle or a quadrilateral. It should be understood that the projection of the adhesive part on the horizontal plane is approximately an inverted triangle or a quadrilateral.

[0012] Based on the above technical solution, the thickness of the thin sheet material is 0.04~0.2mm.

[0013] Based on the above technical solution, the thin sheet material is made of plastic, and the eyelash body is formed by laser cutting on the thin sheet material.

[0014] Based on the above technical solution, the eyelash body is formed by cutting the thin sheet material with ultraviolet laser or green laser.

[0015] Beneficial effects

[0016] This invention features a rational structure. The eyelash strands are cut from a thin sheet material, making them lighter and more comfortable to wear, while maintaining a good curl for a long time. Furthermore, the projection of the adhesive portion at the root onto the horizontal plane is circular, elliptical, polygonal, or irregular, allowing for a larger bonding area between the adhesive portion and the eyelashes. This ensures a strong bond during the application of the grafting adhesive and increases the amount of adhesive adhered, preventing the eyelashes from falling off due to poor adhesive adhesion.

[0017] This invention features a reasonable design. The adhesive part is sheet-like and relatively thin, making it easier to adhere and wrap around the ends of the eyelashes after being dipped in adhesive. This facilitates the grafting process and ensures a strong bond. Furthermore, when the projection of the adhesive part onto a horizontal plane forms an inverted triangle, the root of the eyelash and the eyelash shaft transitions smoothly after grafting. This effectively prevents the formation of steps at the grafting joint and avoids the eyelashes from snagging on these steps during cleaning, leading to detachment. The design is ingenious.

[0018] In this invention, the eyelash body can be laser-cut into shape on a thin sheet of plastic material, which not only greatly improves processing efficiency but also reduces costs, making it conducive to widespread application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0020] Figure 1 Example 1: A three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 Example 1: A top view of the present invention.

[0022] Figure 3 Example 2: A top view of the present invention.

[0023] Figure 4 Schematic diagram of the structure of the present invention from top view in Embodiment 3 Figure 1 ;

[0024] Figure 5 Partial structural diagram of the top view of this utility model in Embodiment 3 Figure 2 ;

[0025] Figure 6 Partial structural diagram of the top view of this utility model in Embodiment 4 Figure 2 ; Detailed Implementation

[0026] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0027] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] In this document, unless otherwise stated, the term "multiple" means two or more.

[0029] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0031] Example 1

[0032] An eyelash extension cord includes an eyelash cord body 1 cut from a thin sheet material. In this embodiment, the thin sheet material is a plastic material with a thickness of 0.04~0.2mm, such as polyethylene, nylon, polyvinyl fluoride, polypropylene, etc., which is inexpensive and easy to obtain.

[0033] A plurality of eyelash-like body parts 1 are formed by laser cutting on the thin sheet material. Laser cutting is an existing technology and will not be described in detail here. In this embodiment, an ultraviolet laser cutting machine or a green laser cutting machine can be used to cut the thin sheet material. When using an ultraviolet laser cutting machine, its rated power is 6~12W, the laser width is 10~20µm, and the processing accuracy is high, making it suitable for cutting and forming with high dimensional accuracy. In addition, the cut edges are smooth, eliminating the need for subsequent grinding and finishing processes, which helps improve product quality.

[0034] like Figure 1 and 2 As shown, the root of the eyelash body 1 includes an adhesive portion 11 for connecting with human eyelashes. The adhesive portion 11 is sheet-shaped and its projection on the horizontal plane is approximately an inverted triangle. The top outer edge of the triangular adhesive portion smoothly transitions with the adjacent eyelash body 1. In other embodiments of this utility model, the other two outer edges of the triangle smoothly transition through an arc surface.

[0035] This allows for a larger bonding area between the adhesive part 11 and the eyelash, ensuring a secure bond during the grafting process. It also increases the amount of adhesive adhered during grafting, preventing detachment due to poor adhesive adhesion. Furthermore, the adhesive part is sheet-like and relatively thin, allowing it to adhere tightly to the end of the eyelashes under the surface tension of the adhesive after being applied, facilitating the grafting process and ensuring a strong bond.

[0036] When the projection of the adhesive part 11 on the horizontal plane is an inverted triangle, after grafting, the adhesive part 11 wraps around the end of the eyelash, making the eyelash and the root of the eyelash body 1 transition relatively smoothly. This effectively avoids the formation of a large step at the grafting joint, which can easily snag on the step and cause the eyelash to fall off during cleaning. The design is ingenious.

[0037] like Figure 1 As shown, the end of the eyelash body 1 is narrower and flat-headed, which facilitates processing and makes the end of the eyelash body 1 generally sharp. In other embodiments of this utility model, the end of the eyelash body 1 may also be narrower and pointed.

[0038] Example 2

[0039] The difference between Example 2 and Example 1 is that, as Figure 3As shown, the adhesive portion 11 is sheet-shaped, and its projection on the horizontal plane is approximately an inverted trapezoid. The top of the trapezoid is the same width as the adjacent eyelash body 1, and the three planes forming the outer edge of the trapezoid transition smoothly. In addition, the adhesive portion 11 is provided with a groove 12 to accommodate the adhesive for bonding with human eyelashes, so as to avoid the situation where the eyelash body is not easy to pick up the adhesive during grafting.

[0040] Example 3

[0041] The difference between Example 3 and Example 1 is that, as Figure 4 As shown, the adhesive portion 11 is sheet-like, and its projection on the horizontal plane is approximately semi-elliptical, with the semi-elliptical arc surface forming the outer edge of the adhesive portion 11.

[0042] In other embodiments of this utility model, such as Figure 5 As shown, recesses are provided on the outer edge surfaces on both sides of the adhesive portion 11, such as... Figure 5 As shown, the cavity is a through groove extending along the thickness direction, which is convenient for processing and accommodates the adhesive, so that the joint of the adhesive part 11 is more firmly bonded after wrapping the end of the eyelash.

[0043] Example 4

[0044] The difference between Example 4 and Example 1 is that, as Figure 6 As shown, the adhesive part 11 is sheet-like, and its projection on the horizontal plane is quadrilateral.

[0045] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A lash filament for grafting, characterized in that, The product includes an eyelash body (1) cut from a thin sheet material, the base of which includes an adhesive portion (11) for connecting with human eyelashes, the adhesive portion (11) being sheet-like and projected onto a horizontal plane in a circular, elliptical, polygonal, or irregular shape.

2. The grafting filament according to claim 1, wherein The adhesive portion (11) smoothly transitions with the adjacent eyelash body (1).

3. The grafting filament according to claim 2, wherein Multiple planes of the outer edge of the adhesive portion (11) are smoothly transitioned.

4. The grafting filament according to claim 1, wherein The end of the eyelash body (1) tapers to a sharp point.

5. The grafting filament according to claim 1, wherein The adhesive portion (11) is provided with a groove (12) or a through hole to accommodate the adhesive that is bonded to human eyelashes.

6. The grafting filament according to claim 5, wherein The outer edges of the adhesive portion (11) on both sides are provided with recesses to accommodate the adhesive for bonding human eyelashes.

7. The grafting filament according to claim 1, wherein The projection of the adhesive part (11) on the horizontal plane is an inverted triangle or a quadrilateral.

8. The grafting thread of any one of claims 1 to 7, wherein the grafting thread is a mascara thread. The thickness of the thin sheet material is 0.04~0.2mm.

9. The grafting filament according to claim 8, wherein The thin sheet material is made of plastic, and the eyelash body (1) is formed by laser cutting on the thin sheet material.

10. The grafting filament according to claim 9, wherein The eyelash body is formed by cutting the thin sheet material using an ultraviolet laser or a green laser (1).