Leather inlaying process and method

Abstract

The invention discloses a leather inlaying process and method, and relates to the technical field of leather inlaying, and the leather inlaying process comprises the following steps: drilling dense miniature taper holes in glasses legs by using laser, and carrying out sand blasting treatment; performing needling loosening treatment, and coating a layer of thermoplastic elastomer microparticles; the back face of the leather coated with the thermoplastic elastomer particles is tightly attached to the micropore areas of the glasses legs, positioned and aligned, and pre-pressed and attached with low pressure; pressing the molten thermoplastic elastomer into and filling the micropores in the glasses legs with the molten thermoplastic elastomer by using a special mold; quickly cooling the mold in a state of keeping the pressure, so that the molten thermoplastic elastomer filled in the micropores is solidified and hardened, and a mechanically anchored barb-shaped structure is formed in the micropores; and the edge of the inlaying area is coated and cured through low-temperature baking, a sealing protection layer is formed, and water is prevented from invading the anchoring part. Through the thermoplastic elastomer infiltration anchoring technology, the barb-shaped physical interlocking structure can be constructed between the leather and the metal matrix.

Description

Technical Field

[0001] This invention belongs to the field of leather inlay technology, and in particular relates to a leather inlay process and method. Background Technology

[0002] Traditional leather inlay techniques primarily rely on organic adhesives to bond leather to a metal substrate, which has inherent limitations in curved components such as eyeglass temples that bear high-frequency dynamic loads. The chemically bonded interface formed by the cured adhesive is prone to fatigue cracking under continuous bending stress, and the organic polymer chains undergo irreversible degradation due to environmental aging. Over time, the cohesive strength of the adhesive layer continuously decreases, leading to stress concentration in localized areas and causing delamination. This problem is further exacerbated by the difference in thermal expansion coefficients between the ultra-thin metal substrate and natural leather, ultimately resulting in edge warping and even complete detachment of the inlaid leather, severely restricting the long-term reliability of the product. To address these issues, the following solutions are proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a leather inlay process and method. Through thermoplastic elastomer melt infiltration anchoring process, a barbed physical interlocking structure can be constructed between the leather and the metal substrate, which solves the problems of interface fatigue delamination and environmental aging failure caused by dynamic load in existing adhesive inlay processes.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a leather inlay process and method, which specifically includes the following steps: Step S1, Substrate pretreatment: In the curved area of ​​the titanium alloy eyeglass temple where leather needs to be inlaid, dense micro-conical holes are drilled with a laser, and the hole walls are roughened by sandblasting. Step S2, preparation of leather composite layer: The back of the leather is needle-punched and loosened, and then a layer of specific type of thermoplastic elastomer (TPE) microparticles is evenly coated on the loosened surface; Step S3, Precise Positioning and Bonding: Place the leather back coated with TPE particles tightly against the microporous area of ​​the temple, use optical equipment to precisely position and align it, and pre-press it with low pressure; Step S4, Gradient hot pressing anchoring: Using a special mold, a low temperature is maintained on the front of the leather to protect it, while the back of the temple is precisely heated to melt the TPE particles into a liquid state. Pressure is applied in stages to press the molten TPE into and fill the micropores on the temple. Step S5, Cooling and Shaping: The mold is rapidly cooled while maintaining pressure, causing the molten TPE filled in the micropores to solidify and harden, forming a mechanically anchored barb-like structure in the pores; Step S6, Surface sealing treatment: The edges of the inlay area are coated and cured by low-temperature baking to form a sealing protective layer to prevent moisture from penetrating the anchoring part.

[0005] Further, step S1, the matrix pretreatment, specifically includes the following steps: Step S11: On the selected titanium alloy eyeglass temple base, a laser engraving machine is used to precisely process a series of densely arranged micro-hole arrays in the specific curved area where leather needs to be inlaid. These holes are designed as a conical structure with a large entrance and a small bottom. Step S12: Sandblast the area filled with micropores by high-speed impact of fine and hard sand particles to make the inner wall of each micropore sufficiently rough. This step involves precisely machining a tapered micro-pore array on the curved surface of the titanium alloy temple and roughening it with sandblasting to create a high surface area anchoring structure, providing a physical locking foundation for subsequent thermoplastic material infiltration.

[0006] Further, step S2, the preparation of the leather composite layer, specifically includes the following steps: Step S21: The back of the selected top-grain vegetable-tanned cowhide is treated to loosen the fibers. A special needle roller is used to pierce the back of the leather at a specific depth and density to make the fiber layer fluffy, thereby increasing the space for subsequent bonding materials. Step S22: On the back of the leather after the softening treatment, a layer of a specific type of thermoplastic elastomer (TPE) microparticles is evenly coated to ensure precise control of the coating amount. These particles will serve as a key medium material for achieving mechanical anchoring in the subsequent hot pressing process. This step involves loosening the fibers on the back of the leather and coating it with thermoplastic elastomer (TPE) microparticles of a specific particle size to construct a melt-permeable intermediate layer, ensuring that the material forms a molecular-level interface with the micropores of the matrix.

[0007] Furthermore, step S3, precise positioning and fitting, specifically includes the following steps: Step S31: Cover the microporous array area of ​​the titanium alloy temple with the leather material prepared in step S2, with the TPE microparticle coating facing down; Step S32: Activate the optical positioning system, use a high-precision CCD lens to capture the positional deviation between the leather outline and the preset inlay boundary of the temple, and adjust the leather position in real time until the edge alignment error is less than the requirement; Step S33: Start the pneumatic pressing device and apply a uniform pre-pressure of about 0.2 MPa to the surface of the leather, so that the TPE microparticle layer on the back of the leather and the microporous area of ​​the temple can be seamlessly bonded in the curved shape, thus establishing a physical contact basis for subsequent hot pressing and anchoring. This step uses an optical positioning system to precisely align the leather with the micro-perforated area of ​​the temple, applies pre-pressure to eliminate gaps, ensures zero-deviation fit of the curved surface inlay, and avoids displacement during the hot pressing process.

[0008] Further, step S4, gradient hot-pressing anchoring, specifically includes the following steps: Step S41: The operation is carried out using a special dual-temperature zone hot press mold. The upper mold contacts the front of the leather and maintains a constant low temperature to protect the leather from being burned. At the same time, the lower mold contacts the back of the temple and begins to heat up from the initial temperature, eventually reaching 190 degrees Celsius, so that the thermoplastic elastomer microparticles on the back of the leather are completely melted. Step S42: Apply pressure in two stages during the heating process: when the temperature reaches 120 degrees Celsius, apply medium pressure and maintain it for a short time; when the lower mold temperature reaches the target 190 degrees Celsius, immediately apply greater pressure and maintain it for a longer time. Step S43: Under the combined action of high temperature and high pressure, the molten liquid TPE is forcefully pressed in and fully fills all the micro-conical pores on the temple base, ensuring that the filling is both full and tight, laying the foundation for subsequent mechanical anchoring. This step employs a dual-temperature zone stepped pressure application: the upper mold maintains the leather at a low temperature, while the lower mold melts the TPE at a high temperature, allowing it to penetrate the micropores; staged pressure control enables the material to flow and fill fully, forming a hook-shaped mechanical interlocking structure.

[0009] Furthermore, step S5, cooling and shaping, specifically includes the following steps: Step S51: After the gradient hot pressing anchoring is completed, continue to maintain a constant pressure of 2.5 MPa to 3.0 MPa, and simultaneously start the water cooling circulation system built into the mold to rapidly cool the lower mold on the back of the contact temple from 190°C to about 60°C within 10 seconds. Step S52: At this time, the molten TPE material solidifies and shrinks inside the micropores of the titanium alloy, forming a mechanically locked barbed anchor body by relying on the conical hole structure and rough hole wall; Step S53: After the temperature stabilizes, release the pressure, remove the temple workpiece, and use a precision cutting tool to remove any residual TPE material overflowing from the edge of the leather. This step involves rapid cooling and solidification of TPE under continuous pressure, allowing the molten anchor solid to solidify and take shape within the micropores, ensuring the complete formation of the barb structure and locking the leather to the metal substrate.

[0010] Further, step S6, the surface sealing treatment, specifically includes the following steps: Step S61: Use an ethanol solution containing microcrystalline wax to evenly wipe the seam between the leather and the titanium alloy temples, ensuring that the solution fully penetrates to the edge of the anchoring interface; Step S62: Place the workpiece in a constant temperature environment for low-temperature baking, so that the microcrystalline wax in the solution solidifies at the interface to form a sealed and waterproof barrier. This step involves sealing the edge interface of the inlay with a wax-based solution to prevent moisture from penetrating the anchoring layer, thus preventing material interface degradation caused by a humid and hot environment and improving the long-term service stability of the product.

[0011] The present invention has the following beneficial effects: 1. This invention utilizes thermoplastic elastomer to melt and penetrate into the micropores of the matrix to form a physical anchor, establishing a mechanical interlocking structure at the interface between the leather and the metal. This replaces chemical bonding methods with adhesives, effectively eliminating the risk of adhesive layer aging and cracking. The barbed shape formed by the solidification of the anchor body within the micropores of the matrix effectively resists multi-directional peeling stress and can adapt to the shear force and torsional load generated by the high-frequency bending of the eyeglass temples. The interface bonding strength is significantly higher than that of conventional adhesives or sewing fixation, eliminating the risk of delamination and detachment during long-term use and extending the product's service life.

[0012] 2. This invention utilizes precise hot-pressing control based on gradient temperature and stepped pressure to ensure the leather adheres to the complex three-dimensional curved surface of the titanium alloy temples. Molten thermoplastic elastomer flows directionally under pressure to fill micropores, preventing leather deformation or wrinkles caused by localized stress concentration. The process eliminates the need for destructive mechanical fasteners such as stitching holes and rivets, fully preserving the natural texture of the leather surface and the streamlined design of the metal substrate. The inlaid edges are free from warping or discontinuity, achieving an integrated fusion of decorative surface and functional structure, meeting the stringent aesthetic requirements of high-end products.

[0013] 3. The synergistic effect of the microporous anchoring structure and surface sealing treatment in this invention can reduce the erosion of the interface by external environmental media; the thermoplastic elastomer filling layer forms a continuous sealing barrier at the metal-leather interface, inhibiting the penetration of corrosive substances such as sweat and grease; the physical interlocking mechanism of the barbed anchor body maintains dimensional stability when temperature and humidity change.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a flowchart illustrating a leather inlay process and method according to 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] Please see Figure 1 As shown, this invention relates to a leather inlay process and method, and the leather inlay process and method for repairing ladders includes the following steps: Step S1, Substrate pretreatment: In the curved area of ​​the titanium alloy eyeglass temple where leather needs to be inlaid, dense micro-conical holes are drilled with a laser, and the hole walls are roughened by sandblasting. Step S1, the matrix pretreatment, specifically includes the following steps: Step S11: On the selected titanium alloy eyeglass temple base, a laser engraving machine is used to precisely process a series of densely arranged micro-hole arrays in the specific curved area where leather needs to be inlaid. These holes are designed as a conical structure with a large entrance and a small bottom. Step S12: Sandblast the area filled with micropores by high-speed impact of fine and hard sand particles to make the inner wall of each micropore sufficiently rough.

[0019] Step S2, preparation of leather composite layer: The back of the leather is needle-punched and loosened, and then a layer of specific type of thermoplastic elastomer (TPE) microparticles is evenly coated on the loosened surface; Step S2, the preparation of the leather composite layer, specifically includes the following steps: Step S21: The back of the selected top-grain vegetable-tanned cowhide is treated to loosen the fibers. A special needle roller is used to pierce the back of the leather at a specific depth and density to make the fiber layer fluffy, thereby increasing the space for subsequent bonding materials. Step S22: On the back of the leather that has undergone the softening treatment, a layer of a specific type of thermoplastic elastomer (TPE) microparticles is evenly coated to ensure precise control of the coating amount. These particles will serve as a key medium material for achieving mechanical anchoring during the subsequent hot pressing process.

[0020] Step S3, Precise Positioning and Bonding: Place the leather back coated with TPE particles tightly against the microporous area of ​​the temple, use optical equipment to precisely position and align it, and pre-press it with low pressure; Step S3, precise positioning and fitting, specifically includes the following steps: Step S31: Cover the microporous array area of ​​the titanium alloy temple with the leather material prepared in step S2, with the TPE microparticle coating facing down; Step S32: Activate the optical positioning system, use a high-precision CCD lens to capture the positional deviation between the leather outline and the preset inlay boundary of the temple, and adjust the leather position in real time until the edge alignment error is less than the requirement; Step S33: Activate the pneumatic pressing device to apply a uniform pre-pressure of about 0.2 MPa to the surface of the leather, so that the TPE microparticle layer on the back of the leather and the microporous area of ​​the temple can be seamlessly bonded in the curved shape, thus establishing a physical contact basis for subsequent hot pressing and anchoring.

[0021] Step S4, Gradient hot pressing anchoring: Using a special mold, a low temperature is maintained on the front of the leather to protect it, while the back of the temple is precisely heated to melt the TPE particles into a liquid state. Pressure is applied in stages to press the molten TPE into and fill the micropores on the temple. Step S4, gradient hot-pressing anchoring, specifically includes the following steps: Step S41: The operation is carried out using a special dual-temperature zone hot press mold. The upper mold contacts the front of the leather and maintains a constant low temperature to protect the leather from being burned. At the same time, the lower mold contacts the back of the temple and begins to heat up from the initial temperature, eventually reaching 190 degrees Celsius, so that the thermoplastic elastomer microparticles on the back of the leather are completely melted. Step S42: Apply pressure in two stages during the heating process: when the temperature reaches 120 degrees Celsius, apply medium pressure and maintain it for a short time; when the lower mold temperature reaches the target 190 degrees Celsius, immediately apply greater pressure and maintain it for a longer time. Step S43: Under the combined action of high temperature and high pressure, the molten liquid TPE is forcefully pressed in and fully fills all the micro-conical pores on the temple base, ensuring that the filling is both full and tight, laying the foundation for subsequent mechanical anchoring.

[0022] Step S5, Cooling and Shaping: The mold is rapidly cooled while maintaining pressure, causing the molten TPE filled in the micropores to solidify and harden, forming a mechanically anchored barb-like structure in the pores; Step S5, cooling and shaping, specifically includes the following steps: Step S51: After the gradient hot pressing anchoring is completed, continue to maintain a constant pressure of 2.5 MPa to 3.0 MPa, and simultaneously start the water cooling circulation system built into the mold to rapidly cool the lower mold on the back of the contact temple from 190°C to about 60°C within 10 seconds. Step S52: At this time, the molten TPE material solidifies and shrinks inside the micropores of the titanium alloy, forming a mechanically locked barbed anchor body by relying on the conical hole structure and rough hole wall; Step S53: After the temperature stabilizes, release the pressure, remove the temple workpiece, and use a precision cutting tool to remove any residual TPE material overflowing from the edge of the leather.

[0023] Step S6, Surface sealing treatment: The edges of the inlay area are coated and cured by low-temperature baking to form a sealing protective layer to prevent moisture from penetrating the anchoring part.

[0024] Step S6, the surface sealing treatment, specifically includes the following steps: Step S61: Use an ethanol solution containing microcrystalline wax to evenly wipe the seam between the leather and the titanium alloy temples, ensuring that the solution fully penetrates to the edge of the anchoring interface; Step S62: Place the workpiece in a constant temperature environment and bake it at a low temperature to allow the microcrystalline wax in the solution to solidify at the interface and form a sealed waterproof barrier.

[0025] One specific application of this embodiment is: Titanium alloy eyeglasses with curved temples inlaid with crocodile skin Product carrier: Titanium alloy glasses of a luxury brand, temple base material: Ti-6Al-4V alloy, thickness 1.0mm, curvature radius R5mm-R8mm (variable curvature design).

[0026] Detailed implementation steps Step S1: Matrix Pretreatment Micro-hole arrays were fabricated on the outer curved surface of the temple using an ultraviolet laser engraving machine. Processing parameters: wavelength 355nm, pulse frequency 80kHz, scanning speed 500mm / s; Micropore specifications: Pore diameter: 82μm at the inlet, 52μm at the bottom (taper angle 60°); Pore depth: 205μm; Pore density: 26 pores / cm² (total number of pores: 480 pores / temple); Sandblasting treatment: Sandblasting medium: 120-mesh white corundum (Al2O3); pressure: 0.4MPa, distance 100mm, angle 90°; surface roughness: Ra=3.5μm (measured with Mitutoyo SJ-410).

[0027] Step S2: Preparation of leather composite layer Leather processing: Material: Basalt crocodile belly skin (thickness 0.52mm, density 0.82g / cm³). Fiber loosening: Needle Master Pro needle depth 155μm, needle density 42 needles / cm²; TPE coating: TPE type: G1643 SEBS (melt index 25g / 10min); Particle size: 60±10μm; Coating method: electrostatic spraying (voltage 50kV), coating amount 125g / m².

[0028] Step S3: Precise positioning and fitting The crocodile skin TPE layer is bonded to the microporous area of ​​the temple; Employs a CCD vision positioning system to identify the edges of the leather and the laser-etched lines on the temples, with a positioning accuracy of 0.08mm; Pre-compression: Apply 0.21 MPa pressure with the pneumatic pressure head and maintain it for 5 seconds.

[0029] Step S4: Gradient hot-pressing anchoring Using a custom dual-temperature zone hot press (upper die copper alloy / lower die tool steel): Temperature control: Upper mold: 82℃ (thermocouple closed-loop control); Lower mold: 120℃→190℃ (heating rate 10℃ / s); Pressure control: Stage 1 (120℃): 1.05MPa, 20 seconds; Stage 2 (190℃): 2.55MPa, 30 seconds; TPE filling verification: Cross-sectional electron microscopy (SEM) showed a micropore filling rate of 97.3%.

[0030] Step S5: Cooling and Shaping Water cooling starts at a pressure of 2.55MPa: Cooling rate: 15℃ / s (190℃→60℃ / 10 seconds); Excess material removal: The precision cutting blade removes the excess material along the boundary, with a residual overflow width of <0.05mm.

[0031] Step S6: Surface sealing treatment Coating solution: 8.2 wt% ethanol solution of microcrystalline wax (Clariant Licowax PED-521); Curing: Circulate hot air at 65℃ for 5 minutes to form a 0.5μm sealing film.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A leather inlay technique and method, characterized in that, The leather inlay process and method specifically include the following steps: Step S1, Substrate pretreatment: In the curved area of ​​the titanium alloy eyeglass temple where leather needs to be inlaid, dense micro-conical holes are drilled with a laser, and the hole walls are roughened by sandblasting. Step S2, preparation of leather composite layer: The back of the leather is needle-punched and loosened, and then a layer of thermoplastic elastomer microparticles is evenly coated on the loosened surface; Step S3, Precise Positioning and Bonding: Place the back of the leather coated with thermoplastic elastomer particles tightly against the microporous area of ​​the temple, use optical equipment to precisely position and align it, and pre-press it with low pressure. Step S4, Gradient hot pressing anchoring: Using a mold, the leather is kept at a low temperature on the front side to protect it, while the thermoplastic elastomer particles are heated on the back side of the temple to melt into a liquid state. Pressure is applied in stages to press the molten thermoplastic elastomer into and fill the micropores on the temple. Step S5, Cooling and Shaping: The mold is rapidly cooled while maintaining pressure, causing the molten TPE filled in the micropores to solidify and harden, forming a mechanically anchored barb-like structure in the pores; Step S6, Surface sealing treatment: The edges of the inlay area are coated and cured by low-temperature baking to form a sealing protective layer to prevent moisture from penetrating the anchoring part.

2. The leather inlay process and method according to claim 1, characterized in that, Step S1, the matrix pretreatment, specifically includes the following steps: Step S11: On the selected titanium alloy eyeglass temple base, a laser engraving machine is used to precisely process a series of densely arranged micro-hole arrays in the specific curved area where leather needs to be inlaid. These holes are designed as a conical structure with a large entrance and a small bottom. Step S12: Sandblast the area filled with micropores by high-speed impact of fine and hard sand particles to make the inner wall of each micropore sufficiently rough.

3. The leather inlay process and method according to claim 1, characterized in that, Step S2, the preparation of the leather composite layer, specifically includes the following steps: Step S21: The back of the selected top-grain vegetable-tanned cowhide is treated to loosen the fibers. A special needle roller is used to pierce the back of the leather at a specific depth and density to make the fiber layer fluffy, thereby increasing the space for subsequent bonding materials. Step S22: On the back of the leather that has undergone the loosening treatment, a layer of specific type of thermoplastic elastomer microparticles is evenly coated to ensure precise control of the coating amount. These particles will serve as the key medium material for achieving mechanical anchoring during the subsequent hot pressing process.

4. The leather inlay process and method according to claim 1, characterized in that, Step S3, precise positioning and fitting, specifically includes the following steps: Step S31: The leather material prepared in step S2 is applied to the microporous array area of ​​the titanium alloy temple with the thermoplastic elastomer microparticle coating facing downwards. Step S32: Activate the optical positioning system, use a high-precision CCD lens to capture the positional deviation between the leather outline and the preset inlay boundary of the temple, and adjust the leather position in real time until the edge alignment error is less than the requirement; Step S33: Activate the pneumatic pressing device to apply a uniform pre-pressure of about 0.2 MPa to the surface of the leather, so that the thermoplastic elastomer microparticle layer on the back of the leather and the microporous area of ​​the temple can be seamlessly bonded in the curved shape, thus establishing a physical contact basis for subsequent hot pressing and anchoring.

5. The leather inlay process and method according to claim 1, characterized in that, Step S4, gradient hot-pressing anchoring, specifically includes the following steps: Step S41: The operation is carried out using a special dual-temperature zone hot press mold. The upper mold contacts the front of the leather and maintains a constant low temperature to protect the leather from being burned. At the same time, the lower mold contacts the back of the temple and begins to heat up from the initial temperature, eventually reaching 190 degrees Celsius, so that the thermoplastic elastomer microparticles on the back of the leather are completely melted. Step S42: Apply pressure in two stages during the heating process: when the temperature reaches 120 degrees Celsius, apply medium pressure and maintain it for a short time; when the lower mold temperature reaches the target 190 degrees Celsius, immediately apply greater pressure and maintain it for a longer time. Step S43: Under the combined action of high temperature and high pressure, the molten liquid thermoplastic elastomer is forcefully pressed in and fully fills all the micro-conical holes on the temple base, ensuring that the filling is both full and tight, laying the foundation for subsequent mechanical anchoring.

6. The leather inlay process and method according to claim 1, characterized in that, Step S5, cooling and shaping, specifically includes the following steps: Step S51: After the gradient hot pressing anchoring is completed, continue to maintain a constant pressure of 2.5 MPa to 3.0 MPa, and simultaneously start the water cooling circulation system built into the mold to rapidly cool the lower mold on the back of the contact temple from 190°C to about 60°C within 10 seconds. Step S52: At this time, the molten thermoplastic elastomer material solidifies and shrinks inside the micropores of the titanium alloy, forming a mechanically locked barbed anchor body by relying on the conical hole structure and rough hole wall; Step S53: After the temperature stabilizes, release the pressure, remove the temple workpiece, and use a precision cutting tool to remove any residual thermoplastic elastomer material overflowing from the edge of the leather.

7. The leather inlay process and method according to claim 1, characterized in that, Step S5, cooling and shaping, specifically includes the following steps: Step S51: After the gradient hot pressing anchoring is completed, continue to maintain a constant pressure of 2.5 MPa to 3.0 MPa, and simultaneously start the water cooling circulation system built into the mold to rapidly cool the lower mold on the back of the contact temple from 190°C to about 60°C within 10 seconds. Step S52: At this time, the molten thermoplastic elastomer material solidifies and shrinks inside the micropores of the titanium alloy, forming a mechanically locked barbed anchor body by relying on the conical hole structure and rough hole wall; Step S53: After the temperature stabilizes, release the pressure, remove the temple workpiece, and use a precision cutting tool to remove any residual thermoplastic elastomer material overflowing from the edge of the leather.

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