Bionic hair scale wave type glue-free high-puffiness false eyelash and double-sawtooth high-temperature setting process thereof

Abstract

The present application relates to the field of cosmetic accessory false eyelash production and manufacturing technology, and particularly refers to a bionic scale wave type glue-free high loft false eyelash and a double-sawtooth high-temperature setting process, which comprises a flexible eyelash stem and eyelash filaments, the root of the eyelash filament is high-temperature fused in the flexible eyelash stem body through a hot melt filament to form a glue-free integrated fusion fixed structure; the eyelash filament is a pure PBT bionic scale raw material integrally formed structure, and the whole eyelash filament is in a continuous wave shape structure. The present application solves the problems of poor quality of existing false eyelash chemical fiber filaments, easy collapse of straight filaments, insufficient artificial dispensing and gluing, eye abrasion, insufficient firmness, complex and high-cost artificial process throughout, and large batch difference in product loft and firmness.

Description

Technical Field

[0001] This invention relates to the field of cosmetic false eyelash production and manufacturing technology, specifically to a biomimetic hair scale wave-shaped glue-free high-volume false eyelash and its double-serrated high-temperature setting process. Background Technology

[0002] Currently, fluffy false eyelashes on the market generally suffer from multiple industry pain points, such as poor material quality, unstable shaping effect, high production labor costs, and poor wearing comfort.

[0003] First, traditional false eyelashes mostly use ordinary smooth synthetic fibers, which have no texture, a stiff feel, and a strong plastic feel, resulting in poor skin-friendliness and realism. Moreover, they are mostly straight fibers with no volume of their own, relying entirely on manual spacing to create a fluffy effect. After being formed, they are very prone to springing back, flattening, and collapsing, resulting in poor fluffiness and an unnatural, stiff makeup effect.

[0004] Secondly, traditional false eyelashes are all made using a manual glue application process, which easily leads to a large accumulation of glue in the band, forming raised glue lumps. The overall glue feel is heavy, and when worn, it causes obvious pressure, chafing, and foreign body sensation. Wearing them for a long time can easily cause skin irritation and discomfort. At the same time, the glue only provides surface bonding and fixation, resulting in poor adhesion. After rubbing and repeated wear, problems such as shedding, clumps, and fraying are likely to occur, resulting in low product durability.

[0005] Finally, the production of traditional fluffy false eyelashes is extremely dependent on manual labor. It requires manual application, alignment, drying, and trimming of each cluster of glue, as well as manual tearing and shaping of the tufts. The process is cumbersome, the production efficiency is low, it is extremely dependent on skilled workers, the labor cost is high, and the large error of manual operation results in inconsistent fluffiness and firmness of batches of products, making it difficult to guarantee the yield rate.

[0006] Currently, there is no integrated technical solution that combines pure PBT biomimetic wavy scales, hot-melt wire fusion fixation without glue, and 180°C double-tooth front-to-back misaligned high-temperature shaping. It cannot simultaneously solve multiple problems such as product texture, fluffy shaping, wearing experience, and mass production cost. Therefore, there is an urgent need for a technical solution with a novel structure, excellent experience, and efficient mass production. Summary of the Invention

[0007] The technical problems to be solved by the present invention are: poor texture of existing false eyelashes due to poor quality of synthetic fibers; straight fibers are prone to collapsing; manual application of glue causes glue buildup and chafing, resulting in insufficient durability; the entire process relies on manual labor, which is complicated, costly, and results in large batch-to-batch variations in the fluffiness and durability of the finished product.

[0008] To solve the above problems, the technical solution adopted in this invention is a biomimetic wavy, glue-free, high-volume false eyelashes and its double-serrated high-temperature setting process, which includes a flexible eyelash band and eyelash strands. The root of the eyelash strands is fused into the flexible eyelash band body at high temperature through a hot melt wire to form a glue-free integrated fusion and fixing structure. The eyelash strands are made of pure PBT biomimetic wavy raw material in an integrated molding structure, and the eyelash strands as a whole have a continuous wavy structure.

[0009] As a further aspect of the present invention: the surface of the eyelashes is provided with uniform biomimetic hair scale texture to replicate the texture of real eyelashes.

[0010] As a further aspect of the present invention: the eyelashes are integrally wavy and shaped, not bent and shaped later, naturally spread out and not flat, with a natural fluffy foundation, and strong resilience, making them less prone to collapsing.

[0011] As a further aspect of the present invention: the glue-free integrated welding and fixing structure has no outer adhesive coating, no adhesive layer accumulation, no adhesive block protrusion, the outer surface of the eyelash band is flat and smooth, the whole has no glue feel, and it fits the eyelids well when worn without pressing on the eyes or causing any foreign body sensation.

[0012] As a further aspect of the present invention: each cluster of eyelashes contains 3–30 monofilaments with a diameter of 0.03–0.15 mm. The roots of the individual clusters are gathered and fixed together, while the tips are naturally spread out. Combined with the wave structure, the eyelashes are layered to create a fluffy and three-dimensional makeup effect.

[0013] As a further aspect of the present invention: a 0.5–1.2 mm ventilation gap is reserved between the fixing positions of adjacent eyelash clusters, which, combined with the hollow structure of the wavy silk, further enhances the overall fluffiness and breathability when worn.

[0014] As a further process of the present invention, it includes the following production steps: S1 Raw Material Preparation: Select ultra-thin, flexible, and transparent eyelash bands, and use pure PBT biomimetic hair scale material with an integrated wave structure for eyelash hairs. Comb the hairs to ensure no tangling or deformation. S2 Positioning and Arrangement: Multiple clusters of wavy eyelashes are evenly arranged at preset fixed positions on the eyelash band according to preset spacing and preset curvature; S3 Hot Melt Wire Fixing: The hot melt wire is heated at high temperature using a heating device. The surface structure of the corresponding fixing point of the eyelash wire is melted by the high temperature of the hot melt wire, so that the root of the eyelash is completely embedded into the interior of the molten wire. After cooling and solidification, a glue-free integrated fusion structure is formed. S4 Double-tooth High-Temperature Shaping: Using a double-tooth shaping mold with a temperature of 180℃, the upper and lower double-tooth molds are staggered and pressed to shape the entire row of eyelashes without damage, fixing the wavy arc, spreading angle and three-dimensional fluffy shape of the eyelashes. S5 Cooling and Shaping Quality Inspection: Cooling and shaping the eyelashes after shaping, trimming excess hairs, correcting the overall curvature of the eye shape, and checking the firmness, softness, and evenness of the volume to complete the finished product.

[0015] As a further aspect of the present invention: the double sawtooth high-temperature setting step S4 includes an upper mold and a lower mold. The upper mold and the lower mold are provided with interlocking sawtooth structures on opposite sides. The upper mold and the lower mold are both located in the setting area of ​​the setting machine.

[0016] As a further aspect of the present invention: the temperature in the S4 double-serrated high-temperature setting step is strictly controlled at 180°C. This temperature is suitable for pure PBT biomimetic hair scale material, which can stably lock the wave shape and fluffy angle, while not burning or hardening the eyelash silk, ensuring that the silk's softness remains unchanged.

[0017] The advantages of this invention compared to the prior art are: 1. Soft and realistic material with top-notch texture: Made of pure PBT bionic hair scale material, replicating the texture of real eyelashes, with a delicate and soft touch, no plastic hardness, skin-friendly and comfortable, and a natural and realistic makeup effect that far surpasses ordinary false eyelashes.

[0018] 2. Built-in wavy three-dimensional volume, fluffy and long-lasting without collapsing: The one-piece molded wavy yarn has a hollow three-dimensional structure, which can achieve a full and fluffy makeup effect without the need for dense stacking. Combined with high temperature setting process, it permanently locks in the shape and eliminates the problems of rebound, flattening and collapsing, so that the makeup effect is long-lasting and stable.

[0019] 3. Glue-free, zero-feel wearing experience: The heat-fused one-piece structure leaves no glue residue or protruding glue blocks. The band is flat and smooth, and the ultra-thin, flexible band fits the eyelids without pressing on the eyes, rubbing against the eyes, or causing skin irritation, allowing for comfortable wear all day.

[0020] 4. Embedded and integrated fixation, greatly improving the firmness: Unlike glue surface bonding, this structure is fused and embedded in the stem for fixation, with extremely strong wire gripping force, resistant to rubbing and washing, and can be worn repeatedly, effectively preventing problems such as shedding, tufting, and fraying, and significantly improving the product's durability.

[0021] 5. Simplified mass production process, significantly saving labor costs: Completely eliminate all tedious processes such as manual gluing, drying, replenishing, and manual shaping. No need to rely on skilled workers. The production process is streamlined and highly standardized, doubling the mass production efficiency, significantly reducing labor and material costs, and ensuring a high yield rate and highly consistent batch quality. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional image of the biomimetic, wavy, glue-free, high-volume false eyelashes and their double-serrated high-temperature setting process according to the present invention.

[0023] Figure 2 This is a three-dimensional view of the setting machine used in the high-temperature setting process of the biomimetic hair scale wave-shaped glue-free high-volume false eyelashes of the present invention and its double-serrated high-temperature setting process.

[0024] Figure 3 This invention relates to a biomimetic, wavy, glue-free, high-volume false eyelash with double serrations, and its high-temperature setting process. Figure 1 Enlarged view of part A of the structure.

[0025] Figure 4 This invention relates to a biomimetic, wavy, glue-free, high-volume false eyelash with double serrations, and its high-temperature setting process. Figure 2 Enlarged view of section B in the diagram.

[0026] In the attached image: 1. Flexible eyelash band; 2. Eyelashes; 3. Place the mold; 4. Lower the mold. Detailed Implementation

[0027] 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.

[0028] The following description, in conjunction with the accompanying drawings, describes an embodiment of the present invention: biomimetic, wavy, glue-free, high-volume false eyelashes and their double-serrated high-temperature setting process.

[0029] Combined with appendix Figure 1-4 It includes a flexible eyelash band 1 and eyelash strands 2. The root of the eyelash strands 2 is formed by high-temperature melting of hot melt wire inside the flexible eyelash band 1 to form an integrated, glue-free fusion fixation structure. The eyelash strands 2 are made of pure PBT biomimetic hair scale material in one piece, and the eyelash strands 2 have a continuous wavy structure. The surface of the eyelash strands 2 is set with uniform biomimetic hair scale texture to replicate the texture of real eyelashes. The texture is delicate, soft, and smooth, without the hardness of plastic. It is skin-friendly, comfortable, and the original simulated makeup effect is far superior to ordinary false eyelashes.

[0030] The eyelash strand 2 features a one-piece wave-shaped structure, not a post-bending shape, allowing it to spread out naturally without flattening. It has a natural fluffy base and strong resilience, making it less prone to collapsing. Each cluster of eyelash strand 2 contains multiple individual strands, with the roots gathered and fixed together, and the tips spreading out naturally. Combined with the wave structure, it creates a fluffy and layered makeup effect that is full and three-dimensional without the need for thick layering. Breathable gaps are reserved between the fixing positions of adjacent eyelash strand 2 clusters, and the hollow structure of the wave strand further enhances the overall fluffiness and breathability when worn.

[0031] The glue-free, integrated fusion-bonded structure has no outer adhesive layer, no glue buildup, and no glue lumps or protrusions. The outer surface of the eyelash band is flat and smooth, with no glue feel. It fits the eyelids comfortably without pressure or irritation, allowing for comfortable wear all day. Unlike traditional glue-bonded structures, this structure is a fused and embedded fixation of the band, with extremely strong hair-holding power. It is resistant to rubbing and washing, and can be worn repeatedly. It effectively prevents hair loss, clumps, and fraying, significantly improving product durability.

[0032] The double-serrated shaping mold includes an upper mold 3 and a lower mold 4. Both the upper mold 3 and the lower mold 4 have interlocking serrated structures on opposite sides. Both the upper mold 3 and the lower mold 4 are set in the shaping area of ​​the shaping machine. The double-serrated shaping mold uses the staggered pressing of the upper and lower double-serrated molds to perform non-destructive molding and shaping of the entire row of eyelashes 2, fixing the wavy arc angle and three-dimensional fluffy shape of the eyelashes 2. The shaping temperature is adapted to pure PBT bionic hair scale material, which can stably lock the wavy shape and fluffy angle without burning the hardened eyelashes 2 body and ensuring that the softness of the silk remains unchanged.

[0033] The working principle of this application is as follows: This invention uses pure PBT biomimetic hair scale material to integrally form a wavy eyelash filament 2 with a hollow three-dimensional structure to achieve a natural fluffy effect. Combined with a double-serrated high-temperature setting process, the wave arc and spreading angle are permanently locked to prevent rebound, drooping, and collapse. The surface structure of the flexible eyelash band 1 at the corresponding fixing points is melted by a hot-melt wire at high temperature, allowing the root of the eyelash filament 2 to be completely embedded into the molten band. After cooling and solidification, a glue-free, integrated fusion structure is formed, achieving an integral fixation that significantly improves the firmness, resists rubbing and washing, allows for repeated wear, and effectively prevents falling out. The problem of loose, clump-like lashes is addressed by using a flat band without any outer adhesive layer, glue buildup, or protruding glue lumps, achieving a zero-feel wearing experience. The ultra-thin, flexible band fits the eyelids without pressing, rubbing, or causing stuffiness. The upper mold 3 and lower mold 4 of the double-serrated shaping mold interlock with each other in a serrated structure to achieve non-destructive molding and shaping, fixing the three-dimensional, fluffy shape of the eyelash strands 2. By eliminating all tedious processes such as manual glue application, drying, reapplying glue, and manual tearing and shaping, the mass production process is greatly simplified, significantly saving labor, improving mass production efficiency, reducing labor and material costs, and ensuring a high degree of consistency in yield and batch quality.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art, inspired by this description, design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A biomimetic, wavy, glue-free, high-volume false eyelashes, characterized in that: It includes a flexible eyelash band (1) and eyelash filaments (2). The root of the eyelash filaments (2) is melted into the body of the flexible eyelash band (1) through a hot melt wire at high temperature to form an integrated fusion and fixing structure without glue. The eyelash filaments (2) are integrally molded from pure PBT bionic hair scale material, and the eyelash filaments (2) have a continuous wave-shaped structure.

2. The biomimetic, wavy, glue-free, high-volume false eyelashes according to claim 1, characterized in that: The surface of the eyelashes (2) is provided with uniform biomimetic hair scale texture, replicating the texture of real eyelashes.

3. The biomimetic, wavy, glue-free, high-volume false eyelashes according to claim 1, characterized in that: The eyelash strands (2) are an integral wave-shaped structure, not bent and shaped later. They spread out naturally and are not flat, with a natural fluffy base and strong resilience, making them less prone to collapsing.

4. The biomimetic, wavy, glue-free, high-volume false eyelashes according to claim 1, characterized in that: The glue-free integrated welding and fixing structure has no outer adhesive coating, no glue layer accumulation, and no glue block protrusion. The outer surface of the eyelash band is flat and smooth, with no glue feel. It fits the eyelids well when worn, without pressing on the eyes or causing any foreign body sensation.

5. The biomimetic, wavy, glue-free, high-volume false eyelashes according to claim 1, characterized in that: Each cluster of eyelashes (2) contains 3–30 monofilaments with a diameter of 0.03–0.15 mm. The roots of the clusters are gathered and fixed together, while the tips are naturally spread out. Combined with the wave structure, the layers are stacked to create a fluffy and three-dimensional makeup effect.

6. The biomimetic, wavy, glue-free, high-volume false eyelashes according to claim 1, characterized in that: A 0.5–1.2 mm ventilation gap is reserved between the fixed positions of the adjacent eyelash filaments (2) clusters, which, together with the hollow structure of the wavy filaments, further enhances the overall fluffiness and breathability of the wearer.

7. The double-serrated high-temperature setting process for any of the biomimetic hair-scale wave-like glue-free high-volume false eyelashes according to claims 1-6, characterized in that: The production process includes the following steps: S1 Raw material preparation: Select ultra-thin flexible transparent eyelash band, use pure PBT bionic hair scale material and one-piece molded wave structure eyelash silk (2), comb the silk to ensure no tangling and no deformation; S2 Positioning and Arrangement: Arrange multiple clusters of wavy eyelashes (2) evenly at the preset fixed position of the eyelash band according to the preset spacing and preset curvature; S3 Hot melt fusion fixation: The hot melt wire is heated at high temperature using a heating device. The surface structure of the corresponding fixing point of the eyelash fusion is melted by the hot melt wire at high temperature, so that the root of the eyelash (2) is completely embedded into the interior of the fused fusion body. After cooling and solidification, an glue-free integrated fusion structure is formed. S4 Double-tooth high-temperature shaping: Using a double-tooth shaping mold with a temperature of 180℃, the upper and lower double-tooth molds are offset and pressed to shape the entire row of eyelashes (2) without damage, and fix the wavy arc, spreading angle and three-dimensional fluffy shape of the eyelashes (2). S5 Cooling and Shaping Quality Inspection: Cooling and shaping the eyelashes after shaping, trimming excess hairs, correcting the overall curvature of the eye shape, and checking the firmness, softness, and evenness of the volume to complete the finished product.

8. The double-serrated high-temperature setting process for biomimetic hair-scale wave-like glue-free high-volume false eyelashes according to claim 7, characterized in that: The double sawtooth high-temperature setting step in S4 includes an upper mold (3) and a lower mold (4). The upper mold (3) and the lower mold (4) are provided with interlocking sawtooth structures on opposite sides. The upper mold (3) and the lower mold (4) are both set in the setting area of ​​the setting machine.

9. The double-serrated high-temperature setting process for biomimetic hair-scale wave-shaped glue-free high-volume false eyelashes according to claim 7, characterized in that: In the S4 double-serrated high-temperature shaping step, the temperature is strictly controlled at 180℃. This temperature is suitable for pure PBT bionic hair scale filament material, which can stably lock the wave shape and fluffy angle, while not burning or hardening the eyelash filament (2), ensuring that the softness of the filament remains unchanged.

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