Preparation method of a furniture plate grain release transfer film and application thereof

Abstract

The present application relates to the technical field of furniture plate processing, and particularly relates to a preparation method of a furniture plate grain release transfer film and application thereof, which comprises the following steps: providing a film body, providing a transfer roller, winding the film body on the transfer roller, transferring the grain microstructure on the outer circumferential surface of the transfer roller to the surface of the film body, applying UV ink to the surface of the film body while transferring, and performing light treatment on the UV ink, so as to obtain the release transfer film. The present application uses the grain structure layer of the UV ink after the combination of polyethylene terephthalate and ultraviolet light curing, and the overall structure hardness and wear resistance are better than those of the traditional release paper. In addition, when different grains are produced, only the corresponding transfer roller needs to be engraved in advance, so that the release transfer film can be prepared in batches, the high cost of the steel stamping plate mold for a single grain is not needed, and the processing threshold and production cost of the furniture plate grain are effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of furniture board processing technology, specifically to a method for preparing a release transfer film for furniture board textures and its application. Background Technology

[0002] In the field of surface texture processing of furniture boards, melamine paper embossing and transfer is the mainstream texture forming process. The embossing component with texture microstructure is pressed onto the melamine paper on the surface of the board, so that the texture is transferred to the surface of the paper, and finally the preset appearance texture is formed on the board.

[0003] Currently, the industry mainly uses steel stamping plates as embossing components. Specifically, microstructures with textures are processed on the bottom surface of the steel stamping plate. During embossing, the steel stamping plate is directly pressed onto the surface of the board material with melamine adhesive paper to complete the transfer. However, the preparation cost of this technology is high. Different texture styles require the preparation of independent steel stamping plates, and the processing cost of a single steel stamping plate is high. When there are many texture styles or small-batch production, the mold investment cost is extremely high, resulting in poor production flexibility. Furthermore, due to the limitations of the engraving process of steel plates, steel stamping plates can only process coarse texture structures with low precision, and cannot achieve the forming of high-precision textures, making it difficult to meet the appearance and texture requirements of high-end furniture boards.

[0004] In addition, to reduce mold costs, existing technologies have also developed embossing solutions that use release paper as a transfer carrier, forming textured structures on the release paper to replace the steel stamp plate; however, the release paper itself has low hardness and poor wear resistance, and the textured structure is easily worn and deformed during repeated embossing, resulting in a low number of reuses per sheet and a very short service life; under long-term production, consumables are frequently replaced, the overall cost remains high, and the stability of embossing quality is difficult to guarantee. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a method for preparing a release transfer film for furniture board textures and its application.

[0006] The objective of this invention is achieved through the following technical solution: a method for preparing a release transfer film for furniture board textures, comprising the following steps: S1. Provides a membrane body made of polyethylene terephthalate; S2. Provides a transfer roller with a textured microstructure pre-engraved on its outer peripheral surface; S3. Wrap the film body around the transfer roller; S4. The microstructure of the outer peripheral surface of the film is transferred to the surface of the film body by the transfer roller. S5. While transferring the film in step S4, apply UV ink to the surface of the film body. S6. The UV ink applied to the surface of the film body is subjected to light irradiation treatment to cure the UV ink and form a texture structure layer that matches the texture microstructure, and finally a release transfer film is obtained.

[0007] Furthermore, in step S2, the texture microstructure on the outer peripheral surface of the transfer roller is formed by laser engraving.

[0008] Furthermore, in step S5, the UV ink is applied to the surface of the film body by coating or spraying.

[0009] Furthermore, UV ink is applied to the surface of the film body using a continuous roller coating method.

[0010] Furthermore, in step S6, the light treatment uses ultraviolet light irradiation, and the cured textured structure layer is tightly bonded to the film body as an integral structure.

[0011] Further, in step S1, the thickness of the polyethylene terephthalate is 12 micrometers to 100 micrometers.

[0012] Furthermore, in step S2, the transfer roller is a steel transfer roller.

[0013] Furthermore, in step S4, the rotational speed of the transfer roller is from 5 meters per minute to 20 meters per minute.

[0014] Furthermore, the duration of the ultraviolet irradiation is 5 to 30 seconds; the wavelength range of the ultraviolet light is 365 nanometers to 405 nanometers.

[0015] A method for creating textured patterns on furniture panels includes the following steps: A1. According to the actual size of the furniture board to be processed, the release transfer film prepared by the preparation method according to any one of claims 1-9 is cut into release film units of corresponding size; A2. Attach the release film unit to the bottom surface of the embossed steel plate; A3. Lay melamine adhesive paper onto the surface of the furniture board to be processed; A4: The pressing steel plate drives the release film unit to move downward, so that the textured structure layer on the surface of the release film unit comes into close contact with the melamine adhesive paper and is pressed; A5: After the embossing is completed, the embossing steel plate is lifted to separate the release film unit from the furniture board, resulting in a furniture board with the target texture on the surface.

[0016] The beneficial effects of this invention are as follows: This invention uses polyethylene terephthalate combined with UV ink cured by ultraviolet light to form a textured structure layer, which has better overall structural hardness and wear resistance than traditional release paper. In addition, when producing different textures, only the corresponding transfer rollers need to be pre-carved to prepare release transfer films in batches, without the need to invest in high steel stamping plate mold costs for a single texture, effectively reducing the processing threshold and production cost of furniture board textures. Attached Figure Description

[0017] The invention will be further illustrated with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without any creative effort.

[0018] Figure 1 This is a process flow diagram of the present invention. Detailed Implementation

[0019] The present invention will be further described in conjunction with the following embodiments.

[0020] Depend on Figure 1 As can be seen, the preparation method of a release transfer film for furniture board texture described in this embodiment includes the following steps: S1. Provides a membrane body made of polyethylene terephthalate; S2. Provides a transfer roller with a textured microstructure pre-engraved on its outer peripheral surface; S3. Wrap the film body around the transfer roller; S4. The microstructure of the outer peripheral surface of the film is transferred to the surface of the film body by the transfer roller. S5. While transferring the film in step S4, apply UV ink to the surface of the film body. S6. The UV ink applied to the surface of the film body is subjected to light irradiation treatment to cure the UV ink and form a texture structure layer that matches the texture microstructure, and finally a release transfer film is obtained.

[0021] Specifically, in the preparation method of the release transfer film for furniture board texture described in this embodiment, before the preparation starts, polyethylene terephthalate (PET) substrate is selected as the film body, and then a steel upper pressure roller and a rubber-coated lower flat roller are selected to form a pressure transfer unit; the preset target texture microstructure is processed on the outer peripheral surface of the upper pressure roller using laser engraving technology, and the surface of the lower flat roller is mirror polished and has no texture.

[0022] After the preparatory work is completed, the PET film body is horizontally conveyed through the guide roller system to the roller gap inlet between the upper pressure roller and the lower leveling roller with a constant tension. This makes the top surface of the film body fit against the outer circumference of the texture of the upper pressure roller and the bottom surface facing downwards on the lower leveling roller. The upper pressure roller and the lower leveling roller are driven to rotate synchronously in opposite directions at a uniform speed. The upper pressure roller applies a preset roller gap pressure downwards and transmits the pressure to the lower leveling roller through the film body. Under the action of pressure, the microstructure of the texture on the surface of the upper pressure roller squeezes the film body, causing the bottom surface of the film body to undergo plastic deformation and form a concave-convex texture morphology that is completely opposite to the texture of the upper pressure roller.

[0023] During the synchronous process of the membrane body entering the roller gap, the slit coating head located on the roller gap inlet side continuously and uniformly applies UV ink to the bottom surface of the membrane body. Under the squeezing action of the roller gap, the ink is completely pressed into the newly formed textured recessed area on the bottom surface of the membrane body. Excess ink is scraped off by the roller gap, forming an ink filling layer of uniform thickness. Under this structure, the UV ink only contacts the bottom surface of the membrane body and does not directly contact the textured surface of the upper pressure roller, thus completely avoiding the problem of ink residue contaminating the pressure roller texture.

[0024] After ink filling and texture transfer are completed, the film material is output from the roller gap and enters the light curing station, where the UV ink undergoes a rapid cross-linking and curing reaction under ultraviolet light excitation. Finally, a high-hardness texture structure layer that perfectly matches the microstructure of the upper pressure roller is formed on the bottom surface of the film body. The cured texture structure layer is tightly bonded to the PET film body as an integral structure with strong adhesion. There is no risk of delamination or peeling after long-term use. In addition, the cured UV ink has high surface hardness and excellent wear resistance, and can withstand repeated printing without texture wear or deformation.

[0025] This embodiment, through the aforementioned continuous roller transfer printing combined with UV in-situ curing process, enables continuous and large-scale production of release transfer film with high efficiency. A single engraved transfer roller can produce a large quantity of release transfer film, eliminating the need for high steel stamping plate costs for individual patterns. At the same time, the final formed release transfer film has high pattern precision and strong wear resistance, and can directly replace traditional steel stamping plates and release paper for board embossing, solving the problems of high cost, low pattern precision, and short service life in existing technologies.

[0026] The method for preparing a release transfer film for furniture board textures described in this embodiment involves applying UV ink to the surface of the film body in step S5 by coating or spraying. The method employs continuous roller coating to coat the surface of the film body with UV ink. This continuous roller coating process allows for precise control of the ink layer thickness, ensuring uniform ink distribution across the entire film, avoiding localized material shortages or accumulation, and guaranteeing consistent and stable texture quality for each segment of the film during mass production.

[0027] In the preparation method of the release transfer film for furniture board texture described in this embodiment, in step S6, the light treatment adopts ultraviolet light irradiation, and the cured texture structure layer is tightly bonded to the film body as an integral structure.

[0028] The method for preparing a release transfer film for furniture board texture as described in this embodiment, in step S1, the thickness of the polyethylene terephthalate is 12 micrometers to 100 micrometers; the PET substrate in this thickness range has both good structural stiffness and flexible deformation ability, which can maintain its own dimensional stability during the subsequent transfer process, avoid texture distortion caused by stretching deformation, and smoothly complete processing actions such as rolling and cutting, providing a solid and flat bearing base for the texture structure layer, ensuring transfer accuracy and structural durability from the substrate level.

[0029] The method for preparing a release transfer film for furniture board textures according to this embodiment includes step S2, in which the microstructure of the texture on the outer peripheral surface of the transfer roller is formed by laser engraving. In step S2, the transfer roller is a steel transfer roller; the steel transfer roller has high structural hardness and minimal deformation over long-term use. Combined with the high-precision processing characteristics of laser engraving, it can form clear, precise micron-level fine textures on the roller surface, with strong consistency across the entire roller. After a single engraving, it can be reused repeatedly as a master template, effectively reducing the preparation cost of the texture master template.

[0030] In the preparation method of release transfer film for furniture board texture described in this embodiment, in step S4, the rotation speed of the transfer roller is 5 meters per minute to 20 meters per minute. This rotation speed range can ensure the sufficiency of texture imprinting, avoid insufficient texture forming depth caused by excessive rotation speed, and at the same time take into account the processing efficiency of continuous production, adapting to the needs of industrial mass production.

[0031] The method for preparing a release transfer film for furniture board texture described in this embodiment involves an ultraviolet light irradiation time of 5 to 30 seconds and an ultraviolet light wavelength range of 365 nanometers to 405 nanometers.

[0032] The method for preparing a release transfer film for furniture board texture as described in this embodiment involves pre-preparing the texture microstructure on the outer peripheral surface of the transfer roller through the following steps: High-resolution surface scanning data of real texture samples are obtained, and spatial coordinates are restored from the scanning data using point cloud 3D reconstruction technology to obtain a 3D surface model containing the complete texture height field. Based on the 3D surface model, a laser engraving path is generated, and texture microstructures are processed on the outer peripheral surface of the transfer roller through laser engraving process.

[0033] Specifically, firstly, real wood grain and leather grain samples are selected, and a high-resolution 3D surface topography scanner is used to perform high-precision line-by-line scanning of the sample surface, acquiring raw surface point cloud scanning data with sub-micron resolution. Then, point cloud 3D reconstruction technology is used to sequentially denoise, register the point cloud, stitch together multiple views, and restore spatial coordinates of the raw scanning data, completely reconstructing the three-dimensional morphology of the texture and generating a 3D surface model containing complete texture height field information. The height field data can accurately characterize the depth and shape changes of the texture at each location. Next, the 3D surface model is adapted to the cylindrical coordinates of the transfer roller and unfolded. Based on the unfolded planar texture morphology, a continuous... The process involves creating a seamless laser engraving path file. This file is then imported into the laser engraving equipment, where pre-set parameters such as laser power, feed speed, and number of engraving repetitions are used to engrave line by line on the outer surface of the steel transfer roller. This results in a microstructure on the transfer roller surface that corresponds one-to-one with the morphology of the actual sample. This process enables high-precision replication of realistic natural textures, producing complex patterns such as fine filamentary textures and gradient shades that are impossible to achieve with traditional steel plate printing. The texture edges are clear, and the morphology is highly accurate. Furthermore, a single engraved transfer roller can be reused as a master template for long-term use, providing a stable and high-precision texture reference for subsequent batch production of release transfer films.

[0034] The method for preparing a release transfer film for furniture board texture described in this embodiment further includes a precision level determination step after obtaining the three-dimensional surface model: Based on the height field distribution of each region in the 3D surface model, a convolutional neural network is used to extract features of texture direction, texture spacing, and texture depth distribution to obtain a set of texture feature vectors. Based on the comparison between the detail level in the texture feature vectors and the preset accuracy threshold, the surface accuracy level of the texture microstructure is determined.

[0035] Specifically, after obtaining the 3D surface model of the texture, the system uniformly divides the 3D surface model into several local regions according to the preset grid size, extracts the height field distribution data of each region, and inputs it into a pre-trained convolutional neural network model. The convolutional neural network extracts the texture direction features, texture spacing distribution features, and texture depth variation features of each region through multi-layer convolution operations. After fusing the multi-dimensional features, it outputs the texture feature vector of the corresponding region. The feature vectors of all regions together form a complete texture feature vector set. The system presets precision thresholds corresponding to different processing levels. It compares the detail level parameters in the texture feature vector with the preset precision threshold. If the detail level exceeds the preset precision threshold, it is determined that the texture needs to have micron-level surface replication capability, corresponding to a high-precision processing level. If the detail level is lower than the threshold, it is determined that conventional precision molding can meet the texture mapping requirements. Finally, the surface precision level result corresponding to the texture is output. This process can automatically classify the precision of the texture without relying on human experience. The classification results are accurate and stable, providing a quantitative basis for subsequent selection of membrane material and matching of processing parameters. It avoids insufficient reproduction caused by using conventional processes for high-precision textures, and also avoids unnecessary cost increases caused by using high-precision processes for ordinary textures, thus achieving a match between texture requirements and processing capabilities.

[0036] The method for preparing a release transfer film for furniture board textures described in this embodiment uses PET material for the film body, which is determined through the following steps: Based on the determined surface precision level, the hardness, elastic modulus and number of compression cycles of the candidate non-metallic composite materials were compared item by item; the number of compression cycles of PET material was higher than the preset pressure resistance life threshold and the hardness met the imprinting load, so it was selected as the substrate of the film body.

[0037] Specifically, based on the surface accuracy level determined in the aforementioned steps, the system retrieves a pre-stored database of candidate non-metallic composite material properties. This database contains pre-entered core performance parameters for various candidate materials, such as hardness, elastic modulus, compression cycle count, and surface adhesion. Using the performance requirements at the corresponding accuracy level as the screening criterion, the system sequentially verifies the hardness, elastic modulus, and compression cycle count of the candidate materials. First, materials whose hardness meets the load requirements of the imprinting operation and will not undergo plastic deformation during high-pressure imprinting are selected. Then, materials whose elastic modulus matches the surface accuracy and ensures accurate transmission of the surface morphology are selected. Finally, materials with a compression cycle count exceeding the preset pressure life are selected. Materials with a lifespan threshold were selected. Through item-by-item comparison, polyethylene terephthalate (PET) material was chosen as the substrate for the film body because its hardness was suitable for the imprinting load, its elastic modulus could support the forming accuracy of micron-level textures, and its compressive cycle resistance was far higher than the preset pressure resistance lifespan threshold. This directional screening process can achieve a precise match between texture accuracy and substrate performance, ensuring that the selected substrate can not only meet the accuracy replication requirements of the corresponding texture, but also have sufficient fatigue resistance to support repeated imprinting, avoiding problems such as substandard accuracy or insufficient lifespan caused by blind material selection. Among them, PET substrate has both cost and performance advantages, which can effectively control the cost of consumables while ensuring the quality of texture forming.

[0038] The method for preparing a release transfer film for furniture board texture as described in this embodiment further includes a stress simulation correction step after the texture structure layer has been cured and formed. The stress distribution of the release transfer film during the embossing process is simulated to obtain the pressure distribution data of each protruding node in the textured structure layer. If the pressure concentration value of a local node exceeds the pressure bearing limit of the film material, the texture depth of that area is adaptively adjusted, and the corrected textured structure layer is re-cured and formed.

[0039] Specifically, before the textured structure layer is formally cured and formed, a simulation model of the imprinting stress of the release transfer film is first established using finite element analysis software. The three-dimensional morphology of the designed textured structure layer, the material parameters of the film body, and the performance parameters of the UV ink after curing are imported into the simulation model to simulate the actual imprinting operation conditions such as pressure, holding time, and ambient temperature. Through simulation calculations, the pressure distribution and stress distribution data of all texture protrusion nodes on the textured structure layer are obtained, and local areas with concentrated pressure and stress values ​​exceeding the pressure bearing capacity of the film body material are identified. For the identified overloaded areas, the system automatically makes adaptive downward adjustments to the texture depth in the area, matching the adjustment ratio with the stress over-limit ratio. Under the premise of ensuring that the overall visual effect of the texture is basically consistent, the local protrusion height is reduced, and the three-dimensional model of the textured structure layer is updated. Based on the corrected three-dimensional model, the transfer processing path is regenerated, and then the UV ink transfer and light curing process is executed to form the corrected textured structure layer. By performing pre-stress simulation and adaptive correction, local stress concentration points in the texture structure layer can be eliminated in advance, avoiding problems such as breakage, wear, and collapse of local protrusions due to pressure overload during the imprinting process. This effectively improves the overall fatigue resistance and reusability of the release transfer film, while ensuring the uniformity of the imprinting of textures in all areas of the film surface, and preventing premature failure of local textures.

[0040] The method for creating a textured pattern on furniture panels according to this embodiment includes the following steps: A1. According to the actual size of the furniture board to be processed, the release transfer film prepared by the preparation method according to any one of claims 1-9 is cut into release film units of corresponding size; A2. Attach the release film unit to the bottom surface of the embossed steel plate; A3. Lay melamine adhesive paper onto the surface of the furniture board to be processed; A4: The pressing steel plate drives the release film unit to move downward, so that the textured structure layer on the surface of the release film unit comes into close contact with the melamine adhesive paper and is pressed; A5: After the embossing is completed, the embossing steel plate is lifted to separate the release film unit from the furniture board, resulting in a furniture board with the target texture on the surface.

[0041] Specifically, the method for creating the texture of furniture panels described in this embodiment involves cutting the previously prepared release transfer film into release film units of corresponding sizes according to the actual dimensions of the furniture panels to be processed before processing. The cutting process allows for flexible adjustment of the film unit size based on different panel specifications, eliminating the need for custom-made embossing molds for individual panels. This adapts to flexible production scenarios with multiple specifications and small batches, reducing the production threshold and changeover costs for various textures. After cutting, the release film units are flatly and fixed to the bottom surface of the embossing steel plate, with the side containing the textured structure layer facing downwards towards the panel to be processed. This assembly method can be directly adapted to existing... The conventional embossing production equipment for furniture boards requires no structural modifications to existing embossing production lines. It boasts strong process compatibility and can quickly switch between different texture styles for production. Simultaneously, it completes the pre-treatment process for the boards, smoothly applying melamine adhesive paper to the surface, eliminating air bubbles and smoothing wrinkles to ensure a tight bond between the adhesive paper and the board surface. This provides a uniform transfer medium for subsequent texture transfer, preventing unclear local texture transfer. Once the embossing process begins, the embossing mechanism drives the embossing steel plate vertically downwards, simultaneously lowering the release film unit on the bottom surface. This ensures that the texture structure layer on the release film unit's surface adheres tightly to the melamine adhesive paper surface. The release film is brought into close contact with the melamine adhesive paper, and a stable imprinting pressure is applied. Under this pressure, the three-dimensional microstructure of the texture layer is completely pressed into the plastic melamine adhesive paper, transferring the texture morphology to the surface of the adhesive paper. Because the texture layer of the release film unit is a high-hardness structure cured by UV, its deformation during the imprinting process is minimal, ensuring the clarity and consistency of the texture transfer, even fine textures can be fully presented. After the imprinting and holding pressure process is completed, the imprinting mechanism drives the imprinting steel plate and the release film unit to be lifted vertically upwards in sync, so that the release film unit is smoothly separated from the adhesive paper surface of the furniture board, finally obtaining a finished furniture board with a clear and complete target texture on the surface. The release properties of the PET substrate combined with the cured UV ink enable rapid and non-destructive separation from the melamine adhesive paper after printing, leaving no adhesive residue or sticking / pulling. This ensures the quality of the texture on the board while avoiding adhesive loss in the release film unit, extending its service life. In this embodiment, the above printing process allows for more repeated printing and reuse of a single release film unit, increasing its service life and effectively reducing the frequency of consumable replacements during production, thus lowering consumable costs for long-term mass production. Furthermore, this process achieves higher precision texture transfer than traditional steel stamping plates, balancing production costs, texture quality, and consumable lifespan, effectively improving overall production efficiency.

[0042] The method for creating the texture of furniture boards described in this embodiment acquires the pressure distribution data of each texture protrusion node on the surface of the release film unit in real time during the embossing process. If the pressure concentration value of a local node exceeds the preset pressure limit, the embossing depth of that area is adaptively adjusted.

[0043] Specifically, during the embossing process of furniture panels, a distributed pressure sensor array is arranged on the embossing working surface of the embossing steel plate. The detection points of the sensor array correspond one-to-one with the textured areas of the release film unit, enabling real-time acquisition of pressure data from each textured protrusion node on the surface of the release film unit. This data is then transmitted in real-time to the control system of the embossing equipment. The control system compares the real-time collected pressure values ​​of each node with a preset pressure limit threshold. If the pressure concentration value of a local node exceeds the preset pressure limit, an adjustment command is immediately sent to the zoned pressure adjustment unit of the embossing mechanism to correspondingly lower the pressure of that node. The localized imprinting depth reduces the pressure load on that area. During subsequent imprinting processes, pressure data is continuously collected and the imprinting depth is dynamically adjusted, forming a closed-loop regulation that keeps the pressure in each area within its upper limit. This real-time adjustment process dynamically avoids localized pressure overload during imprinting production, preventing rapid wear and deformation of the release film unit due to continuous high pressure in certain areas, further extending the repeated service life of the release film unit. Simultaneously, it ensures uniform imprinting pressure on each sheet, avoiding quality differences such as excessively deep or shallow lines in certain areas, and improving the quality stability of batch products.

[0044] The method for creating the texture of furniture boards described in this embodiment involves continuously acquiring texture forming images of the board surface during the embossing process. A convolutional neural network is used to perform similarity matching between the texture feature vectors in the forming images and the original texture feature vector set. If the matching degree is lower than a preset quality threshold, it is determined that the release film unit has loss and deformation, triggering a loss detection process to rescan the surface of the release film unit, determine the loss area and output the repair path, and compensate for the loss area by CNC engraving.

[0045] Specifically, a high-resolution industrial camera is installed at the unloading station of the embossing production line. When the embossed furniture board is unloaded, the industrial camera continuously captures images of the texture formation on the board surface at a fixed frame rate and transmits the images to the vision inspection system. The vision system uses a trained convolutional neural network to preprocess the formed images and extract texture features to obtain feature vectors of the formed texture. It then performs similarity matching calculations between these vectors and a pre-stored set of original texture feature vectors and outputs a matching degree value. If the calculated matching degree is lower than a preset quality threshold, it is determined that the release film unit currently in use has experienced wear and deformation. The wear detection process is immediately triggered, the production line is paused, and a microscopic 3D scanning device is used to inspect the entire working surface of the release film unit. The system performs surface scanning and compares the scanned data with the original 3D model to accurately locate the wear and deformation loss areas. Based on the shape deviation of the loss area, the system calculates the engraving compensation amount, automatically generates a CNC engraving repair path, and drives the micro-CNC engraving equipment to perform compensating engraving on the loss area to repair the texture shape. After the repair is completed, the embossing production is restarted. Through online quality inspection and loss repair mechanisms, the texture quality of the embossed finished product can be monitored in real time, and the loss and deformation of the release film can be detected in a timely manner and accurately located for repair, avoiding the continuous production of defective products. At the same time, it can extend the effective service life of a single release film unit, reduce the frequency of consumable replacement, reduce the consumable cost of long-term production, and ensure the continuous stability of texture quality during mass production.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A method for preparing a release transfer film for furniture board texture, characterized in that: Includes the following steps: S1. Provides a membrane body made of polyethylene terephthalate; S2. Provides a transfer roller with a textured microstructure pre-engraved on its outer peripheral surface; S3. Wrap the film body around the transfer roller; S4. The microstructure of the outer peripheral surface of the film is transferred to the surface of the film body by the transfer roller; S5. While transferring the film in step S4, apply UV ink to the surface of the film body. S6. The UV ink applied to the surface of the film body is subjected to light irradiation treatment to cure the UV ink and form a texture structure layer that matches the texture microstructure, and finally a release transfer film is obtained.

2. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S2, the texture microstructure on the outer peripheral surface of the transfer roller is formed by laser engraving.

3. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S5, the UV ink is applied to the surface of the film body by coating or spraying.

4. The method for preparing a release transfer film for furniture board texture according to claim 3, characterized in that: UV ink is applied to the surface of the film body using a continuous roller coating method.

5. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S6, the light treatment uses ultraviolet light irradiation, and the cured textured structure layer is tightly bonded to the film body as an integral structure.

6. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S1, the thickness of the polyethylene terephthalate is 12 micrometers to 100 micrometers.

7. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S2, the transfer roller is a steel transfer roller.

8. The method for preparing a release transfer film for furniture board texture according to claim 1, characterized in that: In step S4, the rotational speed of the transfer roller is from 5 meters per minute to 20 meters per minute.

9. The method for preparing a release transfer film for furniture board texture according to claim 5, characterized in that: The duration of ultraviolet irradiation is 5 to 30 seconds; the wavelength range of the ultraviolet light is 365 nanometers to 405 nanometers.

10. A method for manufacturing the texture of furniture panels, characterized in that: Includes the following steps: A1. According to the actual size of the furniture board to be processed, the release transfer film prepared by the preparation method according to any one of claims 1-9 is cut into release film units of corresponding size; A2. Attach the release film unit to the bottom surface of the embossed steel plate; A3. Lay melamine adhesive paper onto the surface of the furniture board to be processed; A4: The pressing steel plate drives the release film unit to move downward, so that the textured structure layer on the surface of the release film unit comes into close contact with the melamine adhesive paper and is pressed; A5: After the embossing is completed, the embossing steel plate is lifted to separate the release film unit from the furniture board, resulting in a furniture board with the target texture on the surface.

Images