Integrally Molded False Eyelash and Manufacturing Process

Description

TECHNICAL FIELD

The present disclosure relates to the field of false eyelash technology, and more particularly to an integrally molded false eyelash and a manufacturing process thereof.

BACKGROUND

In the field of cosmetic products, traditional false eyelash products generally adopt a separate structure design, and are made by manually bonding a single synthetic fiber eyelash to a plastic stem portion using an adhesive. This production process has obvious technical drawbacks: First, the adhesive bonding method not only involves process complexity and low production efficiency, but also easily leads to eyelash detachment due to adhesive aging or external force, affecting the wear effect and the service life; Second, the separate structure design forms a noticeable seam at the connection point between the stem and the eyelash, severely affecting the naturalness of wear and the comfort; Furthermore, the traditional production process relies on manual operation, making precise control of complex eyelash styles (such as gradient lengths, openwork textures, etc.) difficult to achieve, limiting the artistic expressiveness of the product design. In addition, existing false eyelashes mostly adopt synthetic fiber materials, the mechanical properties of which differ from those of natural eyelashes, easily causing stiffness during wear, while attempted use of paper-based materials faces problems such as insufficient strength and being easily deformable. These technical bottlenecks not only restrict the improvement of product quality, but also hinder the innovative development of the industry. Addressing these problems, there is an urgent need to develop a novel false eyelash product featuring structural integration, production automation, and functional integration, in order to solve the numerous defects existing in traditional products in aspects such as structural design, production process, and material application.

SUMMARY

To solve the aforementioned technical problems, the present disclosure relates to an integrally molded false eyelash. The structure is simple and reliable, effectively solves the aforementioned technical problems, and is suitable for popularization and use. To achieve the above objective, the present disclosure is implemented through the following technical solution:

An integrally molded false eyelash includes a single-piece continuous substrate, constructed from a plastically deformable flexible thin sheet material, a material of the substrate being selected from at least one of natural plant fiber paper, a polyester-based polymer material, or a polyvinyl chloride-based material; an eyelash structure integrally molded with the substrate, including a plurality of simulated eyelash units extending from an edge of the substrate and a stem region connecting the eyelash units; the stem region has a pre-formed curvature matching a natural curvature of a human eyelid, and a thickness of the stem region gradually decreases from an eyelash root towards a center of the substrate to form a smooth transition.

Optionally, based on the above solution: a cross-section of the eyelash unit presents an asymmetric geometric shape, including at least one of a Y-shaped bifurcated structure or a wavy surface structure; a connection interface between a root of the eyelash unit and the stem region is free of traces of mechanical processing, presenting a continuous interface formed by thermal fusion of the material itself or carbonization by laser cutting.

Optionally, based on the above solution: a tip of a single eyelash splits to form 2-4 filamentary branches with gradually reducing width, a difference in branch length is controlled at 0.1-0.3 mm to simulate differences in growth during a natural eyelash shedding cycle, a connection region between the eyelash root and the stem is subjected to a matte treatment to form a matte transition band with a width of 0.2-0.5 mm, the eyelash unit is provided with a preset bending point at one-third of a length from the root, and when a wearer blinks, a swing amplitude of the eyelash tip can reach 15-30°.

Optionally, based on the above solution: a back surface of the connecting stem is compounded with a pressure-sensitive adhesive layer, a surface of the adhesive layer is covered with a peelable antibacterial release liner; the eyelash unit exhibits a gradient dyeing effect from the root to the tip, a dye penetration depth in the root region is 10-30% of a thickness of the material, and the end region retains transparent or semi-translucent properties.

Also included is a manufacturing process for preparing the false eyelash, including the following steps:

• • S1, substrate pretreatment, involving expanding a rolled flexible thin sheet material, and sequentially performing plasma surface activation, silane coupling agent coating, and UV curing treatment;
  • S2, laser cutting, involving using a UV picosecond laser to cut out an eyelash contour and a connecting stem according to a preset path, and controlling a dynamic offset of a laser focus to form a continuous carbonized layer at a cutting edge;
  • S3, warpage induction, involving applying an annular laser scanning path in an eyelash tip region to induce material self-warping through a thermal stress difference;
  • S4, deburring, involving bombarding the cutting edge using low-temperature plasma to selectively remove loose carbide;
  • S5, functional enhancement, involving impregnating with a solution containing fluoropolymer and drying to form a hydrophobic layer;
  • S6, quality inspection, involving using a machine vision system to perform a six-step full inspection process on the cut false eyelash, including contour integrity inspection, dimensional accuracy inspection, warpage angle inspection, and surface quality inspection;
  • S7, dispensing: separating an individual product through an electrostatic adsorption device, and packing the individual product into nitrogen-filled sealed packaging.

Optionally, based on the above solution: in step S2, before cutting, user's eyelid curvature, eyelash growth density, and facial contour data are collected in advance via a multispectral 3D scanner, a convolutional neural network (CNN) is used to generate an adapted eyelash length distribution function L(x) and a curvature parameter K, a generative adversarial network (GAN) is used to analyze a user's facial golden ratio, and a customized solution including the following parameters is output: an eyelash density gradient: increasing from 3 roots/mm at an inner canthus to 8 roots/mm at an outer canthus; a warpage angle distribution: continuously changing from 0° at the root to 25° at the tip; an adapted stem width value: automatically adjusted from 1.2-2.5 mm according to the eyelid curvature; the parameter set is converted into a laser processing path file, and a cutting trajectory is optimized to achieve a material utilization rate of over 95%.

Optionally, based on the above solution: in step S3, dual-beam laser synergistic processing is employed, where a main beam performs contour cutting while an auxiliary beam performs carbonization modification on the edge; the annular laser scanning path is applied in the eyelash tip region, a laser power decreases linearly from 12 W at the root to 6 W at the tip, inducing formation of 15-25° natural warpage; thermal imaging data is acquired in real-time for feedback adjustment of a scanning speed, controlling a width of the heat-affected zone to be ≤50 μm.

Optionally, based on the above solution: step S4 includes: bombarding the cutting edge for 30 s using Ar/O2 gas mixture plasma to remove the loose carbide; impregnating with a fluorinated solution containing 2% PTFE nanoparticles, and curing through a gradient temperature change to form the hydrophobic layer with a contact angle ≥150°; and coating the back surface of the connecting stem with a biocompatible pressure-sensitive adhesive, where an initial adhesive strength is 0.3-0.5 N/cm.

Optionally, based on the above solution: a laser cutting system includes an X/Y galvanometer, an f=160 mm focusing lens, and a beam shaper; during operation, an initial position of the material is first determined through CCD visual positioning, then a laser beam performs cutting according to an AI-generated path file; a main cutting stage uses a continuous wave (CW) laser mode to complete forming of the eyelash contour; switching to a pulsed laser mode is performed to carry out carbonization treatment on the edge to form an 8 μm thick reinforced layer; finally, the annular scanning is implemented in the eyelash tip region to induce generation of 20° natural warpage; the entire process involves real-time monitoring of a temperature field via an infrared thermal imager and feedback adjustment of laser parameters.

Optionally, based on the above solution: in step S5, a composite functional solution containing the following components is prepared: a hydrophobic component: 2-3 wt % fluorocarbon resin (molecular weight 5000-8000), and 0.5-1 wt % nano-silica (particle size 20-50 nm); a reinforcing component: 1-2 wt % waterborne polyurethane, and 0.3-0.6 wt % silane coupling agent KH-570; and a functional component: 0.1-0.3 wt % nano-silver antibacterial agent, and 0.05-0.1 wt % photochromic material; a multi-stage gradient immersion process is employed:

• • First stage: immersion at 25-30° C. for 30-60 seconds, with a pH value of the solution controlled at 5.5-6.5, so that the surface of the material is sufficiently wetted;
  • Second stage: heating to 40-45° C., applying 10-20 kHz ultrasound-assisted penetration, with a processing time of 90-120 seconds;
  • Third stage: cooling to 15-20° C., applying a 0.3-0.5 T static magnetic field to enable directional arrangement of functional components, with a processing time of 60-90 seconds;
  • after removal, sequentially undergoing: centrifugal spin-drying, gradient curing, and UV post-treatment.

Optionally, based on the above solution: in step S6, the contour integrity inspection involves collecting an image of the eyelash edge via a 2-megapixel industrial camera and comparing the image with a standard template to identify burr and notch defects; the dimensional accuracy inspection involves measuring a length and a width of the eyelash using a laser displacement sensor, with a tolerance controlled within a range of ±0.05 mm; the warpage angle inspection involves measuring the warpage angle of the tip using a high-precision goniometer, with a permissible deviation of ±2°; and the surface quality inspection involves analyzing a reflectivity of the cut surface using a fiber optic spectrometer to identify an incompletely cut region.

Compared with the prior art, the present disclosure has the following prominent and beneficial technical effects:

• • 1. □Adopting an integrally molded design completely eliminates the adhesive bonding step of traditional false eyelashes, fundamentally solving the problem of eyelash detachment. A laser engraving process achieves a seamless connection between the eyelash and the connecting stem, making the product fit more naturally and enhancing wearing comfort;
  • 2. □Laser engraving technology replaces the traditional manual bonding process, which not only greatly improves production efficiency (up to 5-8 times that of the traditional process), but also achieves precise control of complex eyelash styles (such as gradient lengths, openwork textures, etc.), providing greater space for artistic creation in product design;
  • 3. Selecting a specially treated flexible paper-based material as the substrate combines the skin-friendliness of natural materials with the durability of synthetic materials. Through waterproofing treatment and a surface coating process, the product maintains lightweight and thin properties while possessing good durability and resistance to deformation;
  • 4. □Innovative surface treatment technology enables the product to achieve multiple color pre-dyeing and special optical effects, meeting personalized demands of different users. Meanwhile, the one-piece structure is easier to clean and maintain, extending the service life of the product;
  • 5. An automated production process significantly reduces labor costs, and material utilization rate is increased by more than 30%, making the mass popularization of high-quality false eyelashes possible.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic diagram of the false eyelash manufacturing process flow

DETAILED DESCRIPTION

To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments. However, the specific implementations and examples described below are for illustrative purposes only, and are not intended to limit the present disclosure.

In the description of the present disclosure, it needs to be understood that terms indicating orientation or positional relationships, such as “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc., are based on the orientation or positional relationship shown in FIG. 1, merely for facilitating the description of the present disclosure, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present disclosure.

In the description of the present application, terms such as “first” and “second” are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

To solve the aforementioned technical problems, the present disclosure designs an integrally molded false eyelash. The false eyelash adopts a flexible thin sheet material to form an eyelash array and a connecting stem in a single step through laser cutting. The substrate is selected from plant fiber paper treated with hydrophobic treatment, having a moderate thickness and good flexibility. After laser cutting, the eyelash unit and the stem form a seamless connection, completely eliminating the risk of detachment associated with traditional adhesive bonding. The connecting stem is designed with a gradient structure that is thick in the middle and thin at the edges, perfectly fitting an eyelid curvature, causing no foreign body sensation during wear. Actual testing shows that the structure remains secure after long-term continuous wear, with a detachment rate significantly lower than that of traditional separate-type false eyelashes. Meanwhile, due to the absence of an adhesive seam, the visual appearance is more natural, completely solving the technical challenges of traditional false eyelashes being stiff during wear and prone to adhesive failure. The integrally molded structure makes the transition between the false eyelash and natural eyelashes more natural, completely eliminating the harsh dividing line seen in traditional products. The overall structural design avoids the common breakage issues of traditional false eyelashes, extending the service life.

The present disclosure achieves convenient color customization through pre-dyed substrate technology. During the production process, pre-dyed substrate roll materials of different colors (including black, brown, and 12 popular color series) are directly selected. During operation, substrate replacement only requires 3 minutes to complete. The system automatically identifies a substrate color code and optimizes laser processing parameters to ensure color consistency (ΔE≤1.0). This solution requires no additional dyeing process. Color uniformity is guaranteed through a standardized substrate pre-dyeing process. Coupled with an intelligent roll changing system, seamless switching between multiple color systems is achieved, which not only meets the demand for rapid market response but also avoids the wastewater discharge and issue of color difference associated with traditional dyeing processes, enabling a single production line to handle 8-10 color orders daily on average, with color change efficiency improved by 40 times compared to traditional processes.

In the present embodiment, building upon the previous description, the structure of the eyelash unit is optimized. Laser precision cutting is used to form an asymmetric geometric shape which is a Y-shaped bifurcation or a wavy surface. A single eyelash begins to bifurcate at one-third of the length from the root, with a bifurcation angle optimized ergonomically to ensure a natural appearance. The connection interface between the root and the stem region undergoes laser thermal melting or carbonization treatment to form a continuous transition. Microscopically, an interpenetrating network structure of intertwined fibers is presented, which not only ensures connection strength but also maintains appropriate flexibility, avoids traces of mechanical processing, and completely replicates the morphological characteristics of natural eyelashes. Testing shows that this design improves the visual appearance of the eyelash by more than 40%, and the tensile strength of the connection portion reaches 3 times that of traditional adhesive bonding, completely eliminating the problem of the noticeable seam at the root of traditional false eyelashes. During wear, the eyelash can swing naturally with blinking, with dynamic performance comparable to real eyelashes. After repeated use and cleaning, the initial aesthetic shape can still be maintained, unlike traditional products which deform easily.

This embodiment further refines the bionic eyelash design. Bending points are set at specific locations on the eyelash, and local flexibility is controlled through laser heat treatment, enabling the eyelash to swing naturally by 15-30° with eye movement. The tip adopts a multi-branch design to simulate the difference in growth of natural eyelashes, with the length difference between a main branch and a side branch precisely controlled at 0.1-0.3 mm. The connection zone between the root and the stem undergoes laser matte treatment to form a matte transition band. Surface roughness is optimized to achieve an optical gradient effect. This structural design makes the visual appearance of the false eyelash more natural and realistic, making it difficult to distinguish between real and false even upon close observation. Simultaneously, the special connection method provides the eyelash with appropriate elasticity, allowing natural swinging with blinking movements, completely avoiding the stiffness of traditional false eyelashes.

This embodiment focuses on improving a functional coating. The back surface of the connecting stem is coated with a medical-grade pressure-sensitive adhesive layer containing nano-silver, featuring moderate initial adhesive strength and excellent repeated adhesion performance. The surface is covered with an antibacterial release liner having a microporous structure. The eyelash employs a gradient dyeing process to achieve a natural color transition from the root to the tip. The dye penetration depth at the root is precisely controlled to form progressive coloring. The tip retains light transmittance and is covered with an anti-reflection coating. Testing shows that this design improves the naturalness of color transition by 70%, the antibacterial properties meet the medical standard of a 24-hour bacteriostatic rate ≤99.5%, and the release liner improves the ease of use by 50%. This comprehensively solves multiple technical problems of traditional false eyelashes, such as harsh dyeing, being prone to bacterial growth, and inconvenient use. Tack is adjustable, ensuring both secure wear and ease of removal. Breathability is good, avoiding skin discomfort. Resistance to sweat and grease ensures effectiveness during prolonged wear. Hygienic properties are excellent, making the eyelash particularly suitable for repeated use, solving the problem of traditional false eyelashes being prone to bacterial growth. Maintenance is simple, cleaning and upkeep are easier, greatly extending the service life.

This embodiment details the complete manufacturing process flow of the integrally molded false eyelash, as shown in FIG. 1. First, substrate pretreatment is performed. After expanding the rolled plant fiber composite thin sheet material, surface activation is carried out using an atmospheric pressure plasma treatment device, with a processing power of 300 W and a time of 30 seconds, effectively removing surface contaminants and increasing surface energy. Subsequently, a 1.5% concentration ethanol solution of silane coupling agent KH-570 is uniformly applied using a spray coating process, followed by preliminary curing in an oven at 60° C. for 10 minutes. Finally, a stable surface treatment layer is formed using UV curing equipment (wavelength 365 nm, intensity 50 mJ/cm²). Entering the laser cutting stage, processing is performed using a UV picosecond laser (wavelength 355 nm, pulse width 10 ps) according to the AI-generated path file. A focal position is adjusted in real-time through a dynamic focusing module to form a carbonized layer of uniform thickness (8-12 μm) at the cutting edge, while retaining micro-connection structures (width 0.1 mm) between adjacent units. After cutting is completed, the eyelash tip region undergoes thermal stress induction treatment using the annular laser scanning path. Laser power decreases linearly from 18 W at the root to 8 W at the tip, and scanning speed increases from 200 mm/s to 500 mm/s, successfully inducing 20° natural warpage. The deburring stage involves bombarding the cutting edge with Ar/O₂ gas mixture (ratio 4:1) plasma, with a processing power of 400 W and a time of 30 seconds, selectively removing loose carbide and smoothing the edge. The functional enhancement stage involves immersing the product in the fluorinated solution containing 2% PTFE nanoparticles, forming a superhydrophobic surface (contact angle ≥155°) through a gradient heating curing process (50° C./10 min→80° C./20 min→120° C./5 min). Quality inspection uses a 2-megapixel industrial camera for contour integrity inspection, measures dimensional tolerance using a laser displacement sensor (accuracy ±1 μm), and analyzes the reflectivity of the cut surface using a fiber optic spectrometer to ensure surface quality meets standards. Finally, qualified products are sorted using an electrostatic adsorption device and packed into nitrogen-filled aluminum foil bags for sealed packaging, with humidity inside the bag controlled at ≤15%. This process achieves a yield rate of 98.5%, a material utilization rate of 96%, and a production efficiency 5 times higher than traditional processes, thoroughly solving the problems of high loss and low efficiency in traditional false eyelash production.

This embodiment focuses on illustrating the implementation of the personalized customization process: Before laser cutting, the multispectral 3D scanner (accuracy 0.01 mm) is used to collect the user's eyelid curvature radius, eyelash growth density distribution, and facial stereoscopic contour data. The deep convolutional neural network (CNN) is employed to analyze the facial golden section ratio and generate an adapted eyelash parameter set, including the length distribution function L(x)=A·e{circumflex over ( )}(−Bx)+C (A=6-10, B=0.1-0.3, C=2-4), the curvature matching coefficient K=0.9R (R is the measured eyelid curvature), and the density gradient model D(x)=3+5x (x∈[0,1]). The generative adversarial network (GAN) generates a virtual try-on effect based on a database of 20,000 eye shapes, optimizing to obtain the final design solution: starting density at the inner canthus of 3 roots/mm, length 6 mm; maximum density at the outer canthus of 8 roots/mm, length 10 mm; stem width dynamically adapted from 1.2-2.5 mm. The parameter set is converted into laser processing commands via a path optimization algorithm. Cutting path nodes are smoothed using Bezier curves, allowing adjacent eyelash units to share a cutting trajectory, increasing the material utilization rate to 95.3%, saving 27% more material compared to traditional layout methods. Actual production verification shows that this customization system achieves a product adaptation accuracy of 98.7%, and a user satisfaction score of 4.9/5.0, perfectly resolving the conflict between standardized products and personalized demands.

This embodiment optimizes the laser processing process: A dual-beam laser synergistic system is employed. The main beam (355 nm UV laser) operates in continuous wave mode (power 80 W, spot diameter 0.08 mm, speed 1000 mm/s) to perform the main body contour cutting. The auxiliary beam (1064 nm infrared laser) operates in pulsed mode (frequency 80 kHz, single pulse energy 0.8 mJ) to synchronously perform carbonization modification on the cutting edge, forming a uniform 8 μm carbonized reinforcing layer. Dynamic energy control is implemented in the eyelash tip region. Laser power decreases linearly from 12 W at the root to 6 W at the tip. The scanning path adopts an involute annular design (inter-ring spacing 0.15 mm). Coupled with the real-time thermal imaging feedback system (sampling rate 100 Hz), the scanning speed is dynamically adjusted (200-500 mm/s) to strictly control the heat-affected zone within 50 μm. Testing shows that this process stabilizes the natural warpage angle of the eyelash tip at 20±2°, reduces the edge roughness Ra value from 3.2 μm to 0.8 μm, and achieves a uniformity of cut surface reflectivity of 95%, significantly enhancing the appearance quality and mechanical properties of the product.

This embodiment details the functional enhancement process: After deburring, the cutting edge is bombarded with Ar/O₂ gas mixture (4:1) plasma, with a processing power of 400 W and a time of 30 seconds, effectively removing residual carbide and activating the surface. Subsequently, the product is immersed in the fluorocarbon resin solution containing 2% PTFE nanoparticles (particle size 30 nm). 1.5% waterborne polyurethane is added to the solution as a toughening agent, and 0.5% KH-570 silane coupling agent is added to enhance adhesion. A multi-scale micro/nano structure superhydrophobic surface is formed through the gradient curing process (50° C./10 min→80° C./20 min→120° C./5 min), with a contact angle reaching 158° and a sliding angle ≤5°. The back surface of the connecting stem is coated with a medical-grade pressure-sensitive adhesive layer (thickness 50 μm) containing 0.2% nano-silver. The initial adhesive strength is 0.45 N/cm, remaining at 0.38 N/cm after 5 repeated adhesions, with an antibacterial rate reaching 99.6%. In a simulated sweat immersion test, the treated product exhibits a hydrophobicity retention rate of 98%, and an adhesive layer tack decay rate ≤5%/8 h, fully meeting the requirements for all-weather wear.

This embodiment configures a dedicated laser processing system: including an X/Y galvanometer (scanning accuracy ±5 μrad), an f=160 mm focusing lens assembly, and a beam shaper (forming a flat-top beam spot), coupled with a CCD visual positioning system (resolution 5 μm) to achieve high-precision alignment. The workflow is as follows: first, edge features of the material are captured via machine vision to compensate for positioning error ≤10 μm; the main cutting stage uses the continuous wave laser mode (power 80 W, speed 1000 mm/s) to complete forming of the eyelash contour; switching to the pulsed mode (frequency 80 kHz, power 25 W) is performed for carbonization modification of the edge; finally, the annular scanning (power gradient 12→6 W, speed gradient 200→500 mm/s) is implemented at the eyelash tip to induce 20° warpage. The system integrates the infrared thermal imager (temperature resolution 0.1° C.) to monitor the temperature distribution in the processing zone in real-time, dynamically adjusting laser parameters via a PID algorithm to ensure the heat-affected zone is ≤50 μm. This equipment achieves a processing accuracy of ±0.01 mm and a production rate of 600 pieces/hour, representing an 8-fold increase in efficiency compared to conventional equipment.

This embodiment employs an innovative composite functional solution: containing 2.5 wt % fluorocarbon resin (molecular weight 6500), 0.8 wt % nano-silica (particle size 30 nm), 1.2 wt % waterborne polyurethane, 0.4 wt % KH-570 silane coupling agent, with 0.2 wt % nano-silver antibacterial agent and 0.08 wt % spiropyran photochromic material added. A three-stage gradient processing is adopted: First stage (25° C., pH 6.0) involves immersion for 45 seconds to achieve surface wetting; Second stage (42° C., ultrasound frequency 15 kHz) involves treatment for 105 seconds to promote deep penetration; Third stage (18° C., 0.4 T magnetic field) involves treatment for 75 seconds for directional arrangement of nanoparticles. After processing, the product undergoes centrifugal spin-drying (1000 rpm/30 s), gradient curing (50→120° C.), and UV crosslinking (365 nm/50 mW/cm²/60 s), forming a smart surface with antibacterial, hydrophobic, and photoresponsive properties. Testing shows that this treatment results in a product contact angle reaching 162°, an antibacterial rate of 99.8%, and reversible color change from dark brown to light brown under UV irradiation, expanding the fashion expressiveness of the product.

This embodiment constructs a comprehensive quality inspection system: Contour inspection uses a 2-megapixel high-speed camera (500 fps) to capture images of the eyelash edge, comparing them with the standard template via a convolutional neural network, achieving a recognition accuracy of 0.01 mm, capable of detecting burrs or notches ≥20 μm; Dimensional inspection uses a laser displacement sensor (accuracy ±0.5 μm) for multi-point scanning, controlling length tolerance to ±0.05 mm and width tolerance to ±0.02 mm; Warpage angle inspection employs a high-precision grating goniometer (resolution) 0.01° for 3D scanning modeling of each eyelash, with a permissible deviation of ±2°; Surface quality inspection analyzes the reflectance spectrum of the cut surface via a fiber optic spectrometer (wavelength range 400-1000 nm) to identify reflectivity abnormalities (threshold ±3%) in uncut regions. This quality inspection system achieves 100% full inspection with a misdetection rate <0.1%, and adjusts process parameters in real-time via feedback to an MES system, controlling batch-to-batch quality fluctuation within ±1.5%, ensuring high stability of product quality.

The above embodiments are only exemplary embodiments of the present disclosure, and are not intended to limit the scope of protection of the present disclosure based thereon. Therefore, any equivalent variations made according to the structure, shape, and principle of the present disclosure by a person skilled in the art should be encompassed within the scope of protection of the present disclosure.