Method for manufacturing multi-layer small flake false eyelashes

Abstract

The application discloses a kind of production methods of multilayer small flake false eyelashes, it is related to false eyelash technical field, specific production method is as follows S1: screening and detection of bottom film;S2: cutting bottom film forms false eyelash sketch;S3: eyelash stem and bottom film cutting;S4: eyelash stem adheres double-sided adhesive;S5: bottom film is folded and adhered with eyelash stem;S6: false eyelash shaping;S7: false eyelash film removal.This method solves many drawbacks of traditional false eyelash production, and the effect of makeup adopts medical grade transparent double-sided adhesive and coiling pipe high-temperature shaping, so that the curvature of false eyelash is uniform, the glue layer is not white, low sensitization and adheres to original eyelash, natural three-dimensional;On the structure, through the folding and adhering of eyelash stem, bionic multilayer superposition is realized, and the level of eyelash silk is neat after combing, goodbye single layer and thin feeling;On production, use laser cutting equipment throughout the process, cooperate with standardized batch process, replace manual operation, greatly improve production efficiency, and can also ensure product consistency, reduce the rate of defective products.

Description

Technical Field

[0001] This invention relates to the field of false eyelash technology, and in particular to a method for manufacturing multi-layered thin false eyelashes. Background Technology

[0002] Long, curved, dark, and vibrant eyelashes play a vital 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.

[0003] Traditional false eyelash production relies primarily on manual or semi-automatic machinery, bonding single or multiple fibers (such as synthetic fibers or animal hair) to a baseline (usually cotton thread or transparent tape) using cotton thread or glue. This production method is inefficient, costly, and struggles to ensure that the curvature, density, and length of each pair of false eyelashes are completely consistent, lacking the three-dimensionality and layering of real hair. Traditional hot melt adhesives or glues may turn white and opaque, affecting aesthetics and posing a risk of allergies. While recent advancements in hot melt technology or laser-cut single-layer eyelashes have improved efficiency, they still fall short in achieving biomimetic multi-layered and gradient three-dimensional effects. Summary of the Invention

[0004] The purpose of this invention is to provide a method for manufacturing multi-layered thin false eyelashes to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for manufacturing multi-layered thin false eyelashes, the specific manufacturing method of which is as follows: S1: Screening and testing of the bottom film; S2: Cut the base film to form the initial shape of the false eyelashes; S3: Eyelash band and base film cutting; S4: Double-sided adhesive tape for eyelash band adhesion; S5: The base film is folded in half and bonded to the eyelash band; S6: Setting false eyelashes; S7: False eyelashes delaminate.

[0006] Preferably, in step S1, multiple tests are required during the bottom film testing.

[0007] Preferably, in step S2, the eyelashes and the eyelash band of the false eyelashes are integrally formed, and a pair of false eyelashes are symmetrically cut out from the base film.

[0008] Preferably, in step S3, the false eyelashes are cut along the middle of the lash band.

[0009] Preferably, in step S5, the double-sided tape is transparent and is simply attached to one side of the eyelash band.

[0010] Preferably, in step S5, before folding the base film, the eyelashes are straightened using an eyelash brush.

[0011] Preferably, in steps S2 and S3, the cutting is performed using a laser cutting device.

[0012] Preferably, in step S6, the false eyelashes are shaped using a curling iron.

[0013] The beneficial effects of this invention are as follows: 1. In this invention, laser cutting equipment is used for precise processing, forming the eyelash strands and eyelash bands as a single unit. After a successful trial cut, mass production can begin. Combined with standardized processes such as eyelash cleaning and sampling inspection, this replaces the tedious manual gluing steps. Curling and shaping, laser band cleaning, and other processes all support batch operations. The standardized process also ensures uniform product size and curvature, reducing the defect rate and minimizing costs associated with rework.

[0014] 2. In this invention, the cut eyelash bands are precisely folded and glued together to form a neat, multi-layered eyelash structure. The eyelash strands are professionally combed before folding, ensuring no tangling or messiness after layering, creating a natural, gradient, three-dimensional effect and solving the problem of thinness in single-layer eyelashes. The multi-layered, thin design makes the eyelash density more closely match the natural state, and the biomimetic multi-layered structure further enhances the shaping of the eye contour, making the eyelashes more dynamic and layered.

[0015] 3. In this invention, medical-grade transparent double-sided tape is used. It is odorless, hypoallergenic, and the adhesive layer does not turn white. Combined with a high-temperature setting process, it ensures that the curvature of the false eyelashes is uniform and fits the eyes. The eyelash strands are formed in one piece and arranged neatly after being combed. The visual effect is highly close to the natural eyelashes. The lively and three-dimensional effect created can naturally enhance the eye contour and make the makeup effect more in line with the charm of the eyes without being abrupt. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the eyelash fibers of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the folded bottom film of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the cut bottom film of the present invention. Detailed Implementation

[0017] 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.

[0018] This invention provides, for example Figure 1-4 The method for making multi-layered thin false eyelashes is shown below: S1: Screening and testing of the bottom film; S2: Cut the base film to form the initial shape of the false eyelashes; S3: Eyelash band and base film cutting; S4: Double-sided adhesive tape for eyelash band adhesion; S5: The base film is folded in half and bonded to the eyelash band; S6: Setting false eyelashes; S7: False eyelashes delaminate.

[0019] In step S1, multiple tests are required during the bottom membrane testing.

[0020] In step S2, the eyelashes and the eyelash band of the false eyelashes are integrally formed, and a pair of false eyelashes are symmetrically cut out from the base film.

[0021] In step S3, the false eyelashes are cut along the middle of the eyelash band.

[0022] In step S5, the double-sided tape is transparent and is simply attached to one side of the eyelash band.

[0023] In step S5, before the base film is folded in half, the eyelashes are straightened using an eyelash brush.

[0024] In steps S2 and S3, laser cutting equipment is used for cutting.

[0025] In step S6, the false eyelashes are set using a curling iron.

[0026] Further S1: Select composite base films of uniform specifications (the base film is made of a transparent plastic sheet as the base, with a layer of PET film on the surface; in addition to PET film, other materials such as PBT can also be used), ensuring that all materials are free from deterioration and damage, and that their specifications match production requirements. Manually screen the composite base films, removing those with obvious stains, creases, or damage. Then test the peel strength of the PET film (ensuring the PET film does not detach; the PET film is easy to tear, but will not detach from the plastic sheet without external force). Check the overall thickness deviation of the base film to avoid excessive deviation affecting cutting accuracy. Check the deviation of the length and width dimensions of the base film from the standard values. Place the qualified base films in a dust-free cleaning equipment and use electrostatic dust removal to clean surface dust and debris. After cleaning, stack the base films according to specifications, label them, and set them aside for later use. S2: Based on the false eyelash design parameters, input the laser power, cutting speed, cutting depth, and cutting path into the laser cutting equipment control system. Lay the base film flat on the cutting table of the laser cutting equipment. Use the equipment's visual positioning function to calibrate the relative position of the base film and the laser head. Take 1-2 scrap base films for trial cutting. After the trial cutting, check the dimensional accuracy of the false eyelash prototype, the flatness of the cut edges, the integration of the eyelash strands and the eyelash band, and the integrity of the PET film cutting. Only after the trial cutting is qualified can batch cutting begin. Start the laser cutting equipment and precisely cut the PET film according to the preset parameters, ensuring that a pair of false eyelashes with integrated eyelash bands and strands are symmetrically cut from each base film. The size, shape, and number of layers of the left and right eyelashes are consistent. Monitor the equipment's operating status in real time during the cutting process to prevent laser head deviation. After cutting, remove the base film and remove the excess PET film from the corners of the base film. At this time, the eyelash-shaped PET film left on the transparent plastic sheet is the prototype of the false eyelashes. The operator checks the prototype and removes the base film with missing corners, breaks, deformed eyelash bands, or asymmetry between the left and right prototypes. S3: Place the base film with the initial shape of the false eyelashes back onto the laser cutting table of the laser cutting equipment. Activate the equipment's visual positioning calibration function to accurately identify the center position of the eyelash band, ensuring the cutting line is perpendicular and centered to the eyelash band. The laser cutting depth must penetrate the entire base film, cutting the PET film at the eyelash band position in the middle. After cutting, the base film is split in the middle, and the eyelash band part is divided into two sections, forming two corresponding sets of false eyelashes. During the cutting process, a sample check is performed every 50 pieces to confirm the accuracy of the cutting position. After cutting, use a brush to gently clean the PET film debris at the cut area to prevent debris from sticking to the eyelash strands or eyelash band, affecting the subsequent bonding effect. Staff check the flatness and centering of the eyelash band cut, rejecting base films with burrs, misalignment, or excessive cutting depth. Qualified base films are stacked according to the production sequence for later use (the cut eyelash band and transparent plastic sheet are as follows). Figure 1 (as shown) S4: Based on the width and length of the eyelash band, cut the transparent double-sided tape into strips slightly longer than the eyelash band, with both ends extending beyond the eyelash band. Remove strips with uneven edges, adhesive residue, or uneven thickness. Use a brush dipped in a small amount of cleaning solution to gently wipe the PET film surface of one side of the eyelash band to remove debris, dust, and static electricity. Allow it to air dry naturally to improve adhesion between the adhesive layer and the PET film. The operator picks up the cut transparent tape strip and slowly and evenly applies it from one end of the eyelash band to the other, precisely adhering the strip to the cleaned eyelash band surface. During application, gently press the tape strip with tweezers to expel air between the adhesive layer and the eyelash band, ensuring the strip is free of air bubbles, wrinkles, and misalignment, and that the edge of the tape is aligned with the edge of the eyelash band. After application, gently press the tape strip for 5 seconds to ensure a tight bond between the double-sided tape and the eyelash band, without any lifting edges. Remove any strips that are misaligned, have excessive air bubbles, or have exposed adhesive. (The effect of the transparent double-sided tape after application is similar to...) Figure 2 (As shown).

[0027] S5: Using an eyelash brush, gently comb through your eyelashes following their natural growth curve. Neatly comb through any tangled, bent, or misaligned strands, avoiding deformation or breakage. After combing, check the alignment of your eyelashes; re-comb any that are not up to standard. Then, peel off the protective layer from the other side of the double-sided tape. Fold the eyelash band along the pre-cut groove on the base film, ensuring the side with the transparent double-sided tape aligns with the other side. Press the joined eyelash bands together, first gently pressing the ends, then the middle, to firmly bond the two sections with the transparent double-sided tape. Ensure the curve and position of the eyelashes do not shift. Avoid excess adhesive sticking to the eyelashes during pressing, ensuring the adhesive surfaces of the eyelash bands are completely adhered without any risk of separation or lifting. After lamination, operators inspect the adhesion of the eyelash band and the arrangement of the eyelashes one by one. Quality control personnel conduct a 10% sampling inspection, discarding base films with open eyelash bands, curled edges, excess adhesive, or deformed eyelashes. Qualified products proceed to the shaping process (the folded base film is shown below). Figure 3 (as shown) S6: According to the curvature requirements of the false eyelash design, select the corresponding diameter rolling mold, roll the base film onto the rolling tube, and after rolling, put the rolling tube into the steaming oven for high-temperature setting. The high-temperature setting time is 10-20 minutes. You can first take 3-5 qualified adhesive base films for trial setting to check the curvature of the eyelashes and the adhesion. After the trial setting is qualified, carry out batch setting processing. After the setting is completed, let the base film cool naturally to avoid sudden cooling that will cause the PET film to shrink and the curvature of the eyelashes to deform. S7: After the base film cools, remove it from the roll tube. The two rows of corresponding eyelash strands will adhere together to form a complete eyelash cluster. When removing the film, use tweezers to hold the eyelash strands to prevent breakage, then gently peel off the plastic sheet, starting from the tip of the eyelash strand. Slowly separate the plastic sheet from the false eyelashes, ensuring that no eyelash strands fall out or bend, and that the eyelash band is not broken or deformed. Collect the qualified false eyelashes in pairs after removing the film. The operator will conduct an initial inspection of the removed false eyelashes, rejecting defective products with fallen or broken eyelash strands, separated eyelash bands, deformed curves, or attached debris.

[0028] Place the qualified eyelash clusters on the processing table of the laser eyelash removal equipment. The removal equipment will cut off the excess double-sided adhesive strips and the double-sided adhesive strips between each false eyelash to obtain complete eyelash pieces. (When performing this removal process, a high-temperature tape should be stretched over the false eyelashes to prevent the eyelash pieces from falling apart after removal.)

[0029] Furthermore, the double-sided tape uses medical-grade acrylic pressure-sensitive adhesive, which is formaldehyde-free, heavy metal-free, and free of irritating volatile substances. It is hypoallergenic, odorless, and non-irritating to the skin and eyelids. The adhesive layer is insoluble in sweat and tears, and will not swell or fall off due to eye secretions. Under high temperatures, the adhesive layer will not soften, overflow, become sticky, or release harmful substances. It will not melt and stick to eyelashes due to heating, nor will it reduce the adhesion strength of the eyelash band.

[0030] Furthermore, the testing and processing equipment used in this application are existing technologies, and those skilled in the art are familiar with their working principles and can select appropriate processing parameters for processing, so they will not be described in detail here.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A method for manufacturing multi-layered thin false eyelashes, the specific manufacturing method is as follows: S1: Screening and testing of the bottom film; S2: Cut the base film to form the initial shape of the false eyelashes; S3: Eyelash band and base film cutting; S4: Double-sided adhesive tape for eyelash band adhesion; S5: The base film is folded in half and bonded to the eyelash band; S6: Setting false eyelashes; S7: False eyelashes delaminate.

2. The method of claim 1, wherein the multi-layered small flake false eyelash is characterized by: In step S1, multiple tests are required during the bottom membrane testing.

3. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In step S2, the eyelashes and the eyelash band of the false eyelashes are integrally formed, and a pair of false eyelashes are symmetrically cut out from the base film.

4. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In step S3, the false eyelashes are cut along the middle of the lash band.

5. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In step S5, the double-sided tape is transparent and is simply attached to one side of the eyelash band.

6. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In step S5, before folding the base film, the eyelashes are straightened using an eyelash brush.

7. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In steps S2 and S3, laser cutting equipment is used for cutting.

8. The method for manufacturing multi-layered thin false eyelashes according to claim 1, characterized in that: In step S6, the false eyelashes are shaped using a curling iron.

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