Eyelash extension product and root lamination process thereof
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-08-13
Smart Images

Figure CN2025099803_13082026_PF_FP_ABST
Abstract
Description
Eyelash extension materials and root pressing process Technical Field
[0001] This invention relates to the field of false eyelash technology, and in particular to an eyelash grafting material and its root pressing process. Background Technology
[0002] In the current production process of false eyelashes, the roots of the eyelash strands are fixed together using a thread-bonding technique. During this process, adhesive is dissolved in a solvent and applied between the polyester thread and the base of the false eyelash. A hairdryer is then used to heat and solidify the adhesive, forming a thread-bonded band that secures the base of the false eyelashes. However, this thread-bonding process cannot accurately control the adhesive, which can overflow beyond the eyelash roots. Because false eyelashes require a high level of aesthetics and the thread-bonded band is thin, it is difficult to clean up the overflow, rendering the false eyelashes unusable and resulting in inconsistent quality. The resulting thread-bonded band is also stiff and inelastic. The existing adhesive is solvent-based, which is volatile, making it neither environmentally friendly nor safe. Furthermore, applying eyelash glue to the thread-bonded band before attaching it to the natural eyelashes is inconvenient. Additionally, the elliptical cross-section of the thread-bonded band results in a small contact area between the band and the false eyelashes, leading to insecure placement.
[0003] Therefore, there is a need for an eyelash extension material and its root pressing process to solve the above problems. Summary of the Invention
[0004] This invention proposes an eyelash extension material and its root pressing process. The pressing method fixes the root of the eyelash extension material, which avoids glue overflow compared with the traditional thread bonding process, ensuring the stability of the eyelash extension material. Moreover, the adhesive strip has a multi-layer sheet structure, which, compared with the thread adhesive band with an elliptical cross-section, allows for a larger adhesive area when wearing the eyelash extension material, making the eyelash extension material adhere more firmly.
[0005] One technical solution of the present invention is implemented as follows:
[0006] The eyelash extension includes multiple strips of film and multiple layers of eyelashes. Each strip of film has at least one adhesive surface. The root of each layer of eyelashes is adhered to one of the adhesive surfaces. All the strips of film are fixed together by pressing to form a single adhesive strip.
[0007] As a preferred technical solution, all the elongated diaphragms are fixed together by pressing at room temperature.
[0008] As a preferred technical solution, all the elongated diaphragms are fixed together by pressing under heating.
[0009] As a preferred technical solution, the adhesive surface of each of the elongated membranes is bonded to the adjacent elongated membranes.
[0010] As a preferred technical solution, the temperature during the pressing of the elongated diaphragm is between -10° and 180°.
[0011] As a preferred technical solution, the elongated membrane can be made transparent, black, or colored.
[0012] As a preferred technical solution, the thickness of the elongated diaphragm is between 0.02 and 0.12 mm.
[0013] As a preferred technical solution, a strip of film is adhered to the upper side of the root of the top layer of eyelashes.
[0014] As a preferred technical solution, the upper adhesive side of the top strip of film is covered with a peelable protective film; and / or the lower adhesive side of the bottom strip of film is covered with a peelable protective film.
[0015] As a preferred technical solution, after the protective film is removed, the eyelash extension is applied to the upper or lower side of an individual's natural eyelashes.
[0016] As a preferred technical solution, the eyelash extension includes several eyelash clusters, the roots of each eyelash cluster are fixed together by pressing at room temperature, and each eyelash cluster includes multiple eyelash strands with the roots of adjacent eyelash strands staggered.
[0017] As a preferred technical solution, the eyelash extension includes several eyelash clusters, the roots of each eyelash cluster are fixed together by pressing at room temperature, and each eyelash cluster includes multiple eyelash strands, with adjacent eyelash strands evenly distributed.
[0018] As a preferred technical solution, the adhesive strip comprises the following components by weight: 60%-70% SBS, 20%-30% tackifying resin, and 5%-15% plasticizer.
[0019] Another technical solution of the present invention is implemented as follows:
[0020] A root pressing process for eyelash extensions specifically includes the following steps:
[0021] S1. Several eyelash strands are glued together using an adhesive component to obtain a single-layer eyelash sheet;
[0022] S2. Repeat step S1 to obtain multiple sets of the single-layer eyelash fibers;
[0023] S3. A long strip film with at least one adhesive surface is produced;
[0024] S4. Adhere the root of the first group of single-layer eyelash strands to the adhesive surface of the first strip film, stack the second strip film on the adhesive surface of the root of the first group of single-layer eyelash strands, and adhere the root of the second group of single-layer eyelash strands to the adhesive surface of the second strip film.
[0025] S5. Repeat step S4 to bond the roots of multiple sets of single-layer eyelash sheets together, while multiple strip films are stacked together.
[0026] S6. Press the multiple strip films together to form an integral adhesive strip;
[0027] S7. Determine the eyelash cutting line, which is located between the adhesive component and the adhesive strip and close to the adhesive strip. Cut off the waste portion of the single-layer eyelash sheet along the eyelash cutting line to obtain the eyelash graft with the roots fixed together.
[0028] As a preferred technical solution, in step S6, after the multiple strip films are pressed together at room temperature, the adhesive surface on the strip film is bonded to the adjacent strip film to form the adhesive strip that is integrated.
[0029] As a preferred technical solution, in step S5, after multiple strip films are stacked together, a strip film is adhered to the upper side of the root of the top single-layer eyelash film.
[0030] As a preferred technical solution, after multiple strip films are pressed together to form the adhesive strip, a peelable protective film is covered on the upper adhesive surface of the top strip film; and / or a peelable protective film is covered on the lower adhesive surface of the bottom strip film.
[0031] By adopting the above technical solution, the beneficial effects of the present invention are as follows:
[0032] Because eyelash extensions consist of multiple strips of film and multiple layers of eyelash strands, with adhesive surfaces on the strips, the roots of the multiple layers of eyelash strands can be pressed together at room temperature. This method fixes the eyelash extensions at the root, eliminating the need for heating compared to traditional thread bonding techniques. It also avoids glue overflow, ensuring the stability of the eyelash extension material. The multiple strips of film, when pressed together, form an adhesive strip with a multi-layered sheet structure. Compared to the elliptical cross-section of the thread adhesive band, the adhesive strip has a larger surface area for adhesion, resulting in a more secure bond and a soft, non-tactile feel when wearing the eyelash extensions.
[0033] After multiple strips of film are pressed together to form an adhesive strip, the adhesive surface of each strip is bonded to the adjacent strips, ensuring that the resulting adhesive strip is a single unit, thus guaranteeing the stability of the eyelash extensions when worn.
[0034] The transparent strip of film makes the resulting adhesive strip transparent after pressing, thus ensuring that the eyelash extensions are invisible when worn.
[0035] Because the base of the top layer of eyelashes in the eyelash extension is glued with a long strip of film, and the adhesive surface of the long strip of film is covered with a peelable protective film, the eyelash extension is self-adhesive. When wearing the eyelash extension, there is no need to apply false eyelash glue. Just peel off the protective film, and the adhesive surface of the long strip of film can be glued to the bottom of the individual's natural eyelashes.
[0036] Because the bottom strip of the adhesive strip has an adhesive side, and the adhesive side is covered with a peelable protective film, the eyelash extensions are self-adhesive. When wearing eyelash extensions, there is no need to apply false eyelash glue. Just peel off the protective film, and the adhesive side can be bonded to the top of the individual's natural eyelashes.
[0037] In this invention, the combination of a long strip film, an adhesive surface, and a protective film not only makes the eyelash extension self-adhesive, but also, compared with existing false eyelashes that are pasted onto natural eyelashes by applying false eyelash glue, the false eyelash glue is more noticeable after wearing, resulting in poor invisibility. In contrast, the eyelash extension of this invention does not require the application of false eyelash glue, making it simpler, more convenient, softer, more tactile, and more invisible.
[0038] The protective film can protect the adhesive surface, improve the weather resistance of the adhesive surface, and thus extend the shelf life of the present invention. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0040] Figure 1 is a reference diagram showing the state where the upper side of the adhesive strip is covered with a protective film;
[0041] Figure 2 is a magnified schematic diagram of the structure at point A in Figure 1;
[0042] Figure 3 is a reference diagram showing the state where the underside of the adhesive strip is covered with a protective film;
[0043] Figure 4 is a magnified structural diagram of point B in Figure 3;
[0044] Figure 5 is a structural schematic diagram of Embodiment 4;
[0045] Figure 6 is a structural schematic diagram of Embodiment 5;
[0046] Figure 7 is a process reference diagram.
[0047] The components include: 1. eyelash extension material; 2. long strip film; 3. eyelash strand; 4. root; 5. adhesive strip; 6. protective film; 7. eyelash cluster; 8. adhesive component; 9. single-layer eyelash strand sheet; 10. eyelash strand cutting line; 11. waste material. Detailed Implementation
[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example
[0049] As shown in Figures 1-7, the eyelash extension includes multiple strips of film 2 and multiple layers of eyelash filaments 3. Each strip of film 2 has at least one adhesive surface. The root 4 of each layer of eyelashes is bonded to an adhesive surface at room temperature. All the strips of film 2 are fixed together by pressing at room temperature to form a single adhesive strip 5.
[0050] All the long strip diaphragms 2 are fixed together by pressing at room temperature.
[0051] All the long strip diaphragms 2 are fixed together by pressing while heated.
[0052] The adhesive surface of each strip of membrane 2 is bonded to the adjacent strip of membrane 2.
[0053] The temperature during the pressing of the long strip diaphragm 2 is between -10° and 180°.
[0054] Each strip of membrane 2 can be set to any of the following: transparent, black, or colored.
[0055] The thickness of the long strip diaphragm 2 is between 0.02 and 0.12 mm.
[0056] A long strip of film 2 is attached to the upper side of the root 4 of the top layer of eyelashes 3.
[0057] The upper adhesive side of the top strip of film 2 is covered with a peelable protective film 6. And / or the lower adhesive side of the bottom strip of film 2 is covered with a peelable protective film 6.
[0058] After removing the protective film 6, the eyelash extension 1 is applied to the upper or lower side of the individual's natural eyelashes.
[0059] When using the eyelash extension material of this invention, the protective film 6 can be left on without removing it. At this time, the upper and lower sides of the adhesive strip 5 are not sticky. Apply the false eyelash glue to the adhesive strip 5 and then attach the adhesive strip 5 to the individual's natural eyelashes.
[0060] The adhesive strip 5 comprises the following components by weight: 60% SBS, 30% tackifying resin, and 10% plasticizer.
[0061] Compared to existing thread grafts, the material is more environmentally friendly and safer, making the adhesive strip 5 soft and elastic, and improving the comfort and safety of wearing the eyelash extension 1. Example
[0062] This embodiment is basically the same as Embodiment 1, except that the adhesive strip 5 includes the following components by weight: SBS 70%, tackifying resin 25%, and plasticizer 5%. Example
[0063] This embodiment is basically the same as Embodiment 1, except that the adhesive strip 5 includes the following components by weight: SBS 65%, tackifying resin 20%, and plasticizer 15%. Example
[0064] As shown in Figure 5, this embodiment is basically the same as the first embodiment, except that the eyelash graft 1 includes several eyelash clusters 7. The root 4 of each eyelash cluster 7 is fixed together by pressing at room temperature. Each eyelash cluster 7 includes multiple eyelash strands 3, and the root 4 of adjacent eyelash strands 3 are staggered. Example
[0065] As shown in Figure 6, this embodiment is basically the same as the first embodiment, except that the eyelash graft 1 includes several eyelash clusters 7. The root 4 of each eyelash cluster 7 is fixed together by pressing at room temperature. Each eyelash cluster 7 includes multiple eyelash strands 3, and adjacent eyelash strands 3 are evenly distributed.
[0066] A root pressing process for eyelash extensions specifically includes the following steps:
[0067] S1. A plurality of eyelash strands 3 are bonded together by an adhesive component 8 to obtain a single-layer eyelash strand sheet 9. In this invention, the adhesive component 8 includes double-sided adhesive.
[0068] S2. Repeat step S1 to obtain multiple sets of single-layer eyelash strands 9.
[0069] S3. Prepare a long strip film 2 with at least an adhesive side.
[0070] S4. Attach the root 4 of the first set of single-layer eyelash strands 9 to the adhesive surface of the first long strip film 2, stack the second long strip film 2 on the adhesive surface of the root 4 of the first set of single-layer eyelash strands 9, and attach the root 4 of the second set of single-layer eyelash strands 9 to the adhesive surface of the second long strip film 2.
[0071] S5. Repeat step S4 to bond the roots 4 of multiple single-layer eyelash sheets 9 together, while multiple strip films 2 are stacked together.
[0072] S6. Press multiple long strips of film 2 together to form an integral adhesive strip 5.
[0073] S7. Determine the eyelash cutting line 10. The eyelash cutting line 10 is located between the adhesive part 8 and the adhesive strip 5 and close to the adhesive strip 5. Cut off the waste part 11 of the single-layer eyelash filament 9 along this eyelash cutting line 10 to obtain the eyelash graft 1 with the roots 4 fixed together.
[0074] In step S6, after multiple strip films 2 are pressed together at room temperature, the adhesive surface on the strip film 2 is bonded together with the adjacent strip film 2 to form an integral adhesive strip 5.
[0075] In step S5, after multiple strip films 2 are stacked together, a strip film 2 is glued to the upper side of the root 4 of the top single-layer eyelash film 9.
[0076] After multiple strip films 2 are pressed together to form an adhesive strip 5, a peelable protective film 6 is covered on the upper adhesive side of the top strip film 2 and / or on the lower adhesive side of the bottom strip film 2.
[0077] In summary, this invention uses a room temperature pressing method to fix the root of the eyelash extension. Compared with the traditional thread bonding process, it avoids glue overflow and ensures the stability of the eyelash extension material. Moreover, the adhesive strip has a multi-layer sheet structure, which, compared with the thread adhesive band with an elliptical cross-section, allows for a larger adhesive area when wearing the eyelash extension, making the eyelash extension adhere more firmly.
[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An eyelash extension material, characterized in that, It includes multiple strip films and multiple layers of eyelashes. Each strip film has at least one adhesive surface. The root of each layer of eyelashes is adhered to one of the adhesive surfaces. All the strip films are fixed together by pressing to form a single adhesive strip.
2. The eyelash extension material according to claim 1, characterized in that, All the aforementioned elongated diaphragms are fixed together by pressing at room temperature.
3. The eyelash extension material according to claim 1, characterized in that, All the aforementioned elongated diaphragms are fixed together by pressing while heated.
4. The eyelash extension material according to claim 1, characterized in that, The adhesive surface of each of the elongated membrane strips is bonded to the adjacent elongated membrane strips.
5. The eyelash extension material according to claim 1, characterized in that, The temperature during the pressing of the elongated diaphragm is between -10° and 180°.
6. The eyelash extension material according to claim 1, characterized in that, The elongated membrane can be made transparent, black, or colored.
7. The eyelash extension material according to claim 1, characterized in that, The thickness of the elongated diaphragm is between 0.02 and 0.12 millimeters.
8. The eyelash extension material according to claim 1, characterized in that, A strip of film is adhered to the upper side of the root of the top layer of eyelashes.
9. The eyelash extension material according to claim 8, characterized in that, The upper adhesive side of the top strip of film is covered with a peelable protective film; and / or the lower adhesive side of the bottom strip of film is covered with a peelable protective film.
10. The eyelash extension material according to claim 9, characterized in that, After the protective film is removed, the eyelash extension is applied to the upper or lower side of the individual's natural eyelashes.
11. The eyelash extension material according to claim 1, characterized in that, The eyelash extension includes several eyelash clusters, the roots of each eyelash cluster are fixed together by pressing at room temperature, and each eyelash cluster includes multiple eyelash strands with the roots of adjacent eyelash strands staggered.
12. The eyelash extension material according to claim 1, characterized in that, The eyelash extension includes several eyelash clusters, the roots of each eyelash cluster are fixed together by pressing at room temperature, and each eyelash cluster includes multiple eyelash strands, which are evenly distributed among adjacent eyelash strands.
13. The eyelash extension material according to claim 1, characterized in that, The adhesive strip comprises the following components by weight: 60%-70% SBS, 20%-30% tackifying resin, and 5%-15% plasticizer.
14. A root pressing process for eyelash extensions, characterized in that, Specifically, the steps include the following: S1. Several eyelash strands are glued together using an adhesive component to obtain a single-layer eyelash sheet; S2. Repeat step S1 to obtain multiple sets of the single-layer eyelash fibers; S3. A long strip film with at least one adhesive surface is produced; S4. Adhere the root of the first group of single-layer eyelash strands to the adhesive surface of the first strip film, stack the second strip film on the adhesive surface of the root of the first group of single-layer eyelash strands, and adhere the root of the second group of single-layer eyelash strands to the adhesive surface of the second strip film. S5. Repeat step S4 to bond the roots of multiple sets of single-layer eyelash sheets together, while multiple strip films are stacked together. S6. Press the multiple strip films together to form an integral adhesive strip; S7. Determine the eyelash cutting line, which is located between the adhesive component and the adhesive strip and close to the adhesive strip. Cut off the waste portion of the single-layer eyelash sheet along the eyelash cutting line to obtain the eyelash graft with the roots fixed together.
15. The root pressing process for eyelash extensions according to claim 14, characterized in that, In step S6, after the multiple strip films are pressed together at room temperature, the adhesive surface on the strip film is bonded to the adjacent strip film to form the adhesive strip that is integrated.
16. The root pressing process for eyelash extensions according to claim 14, characterized in that, In step S5, after the multiple strip films are stacked together, one strip film is glued to the upper side of the root of the top single-layer eyelash film.
17. The root pressing process for eyelash extensions according to claim 16, characterized in that, After multiple strip films are pressed together to form the adhesive strip, a peelable protective film is covered on the upper adhesive side of the top strip film; and / or a peelable protective film is covered on the lower adhesive side of the bottom strip film.