A method for using a three-dimensional texture water transfer printing PVA layer, a workpiece and its uses

Abstract

A method of using a three-dimensional texture water transfer PVA layer, a workpiece and its uses. The method of use includes: (1) forming soluble three-dimensional patterns on one side of the PVA layer in advance; applying oil-soluble ink on the side of the PVA layer with the soluble three-dimensional patterns, and the oil-soluble ink covers the soluble three-dimensional patterns; (2) transferring the PVA layer and its oil-soluble ink into the water in a water tank and standing still to dissolve the PVA layer in water; (3) aligning and pressing the workpiece against the oil-soluble ink on the side to be decorated so that the workpiece adheres to the oil-soluble ink; the oil-soluble ink is UV ink; (4) performing UV curing and drying on the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional pattern. The workpiece is a PVA composite layer made by the above method of use. This solution can achieve UV curing of oil-soluble ink with three-dimensional patterns, thus solving the problems of long time and high cost caused by the cumbersome steps of forming three-dimensional patterns in the existing water transfer technology.

Description

Technical Field

[0001] The present invention relates to the technical field of water transfer printing, and particularly to a method for using a three-dimensional texture water transfer printing PVA layer, a workpiece and its uses. Background Art

[0002] Water transfer printing technology is widely used in the printing on the surfaces of irregular objects, such as the printing of automobile steering wheels, welcome pedals, automobile interior parts, baby carriages, toys and other items.

[0003] In the process of using the existing water transfer printing paper, it is necessary to first soak the transfer printing paper in water, then peel off the substrate layer, and then attach the transfer printing paper after peeling off the substrate layer to the surface of the workpiece to be transferred; the existing transfer printing paper is mainly a planar structure, and no three-dimensional texture is formed when it is transferred to the surface of the workpiece; if a three-dimensional texture needs to be formed on the workpiece, a series of processing steps are often required. Therefore, the prior art cannot directly water transfer print a three-dimensional texture, and the processing steps of the three-dimensional texture are complex, resulting in a long time and high cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for using a three-dimensional texture water transfer printing PVA layer, which applies the three-dimensional texture water transfer printing PVA layer to a workpiece, can water transfer print an oil-soluble ink with a three-dimensional texture onto the surface of the workpiece, and can achieve UV curing of the oil-soluble ink with a three-dimensional texture.

[0005] The present invention also provides a workpiece, on the surface of which a PVA composite layer prepared by the above-mentioned use method is provided.

[0006] The present invention also provides a use of a three-dimensional texture water transfer printing PVA layer in the preparation of a workpiece with a three-dimensional texture.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A method for using a three-dimensional texture water transfer printing PVA layer includes the following steps:

[0009] (1) A soluble three-dimensional texture is pre-formed on one side of the PVA layer; an oil-soluble ink is applied to the side of the PVA layer with the soluble three-dimensional texture, and the oil-soluble ink covers the soluble three-dimensional texture;

[0010] (2) The PVA layer and its oil-soluble ink are transferred to the water in a water tank and left standing to dissolve the PVA layer in water;

[0011] (3) The workpiece is aligned and pressed against the oil-soluble ink on the side to be decorated, so that the workpiece adheres to the oil-soluble ink; the oil-soluble ink is a UV ink;

[0012] (4)UV-cure and dry the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form a three-dimensional ink pattern.

[0013] Preferably, in step (3), a peelable release film is provided on one or more surfaces of the workpiece, and the surface of the workpiece other than the release film is the surface to be decorated;

[0014] In any step after step (4), peel off the release film.

[0015] Preferably, before step (3), different isolation areas are divided on the same surface of the workpiece to be decorated, and a peelable release film is provided on one or more of the isolation areas and multiple surfaces of the workpiece;

[0016] In step (4), remove the release film from one or more isolation areas, and provide a peelable release film on the cured three-dimensional ink pattern;

[0017] After repeatedly executing steps (1)-(4) multiple times, remove all release films.

[0018] Preferably, it further includes: step (5);

[0019] Step (5): Place the workpiece in a water tank at 20-30°C and gently sweep the surface of the workpiece with the three-dimensional ink pattern.

[0020] More preferably, in step (1), the preparation method of the PVA layer includes the following steps:

[0021] Step (S1): Process an original three-dimensional pattern on the surface of the substrate;

[0022] Step (S2): Apply PVA slurry on the surface of the substrate and make the PVA slurry cover the original three-dimensional pattern;

[0023] Step (S3): Dry the substrate, and the PVA slurry forms a PVA layer. The PVA layer forms a soluble three-dimensional pattern on one side of the original three-dimensional pattern;

[0024] Step (S4): Separate the substrate from the PVA layer to expose the soluble three-dimensional pattern.

[0025] Further preferably, in step (S1), the substrate is a PET board, and an original three-dimensional pattern is formed on the surface of the substrate by hot pressing with a pattern roller.

[0026] Preferably, in step (S1), an original three-dimensional pattern is formed according to a preset pattern;

[0027] After or during the step (S1), after applying an oil-soluble ink on one side of the PVA layer with soluble three-dimensional patterns, glitter powder and / or colorant are added along the path direction of some of the patterns in the soluble three-dimensional patterns.

[0028] A workpiece, on the surface of which a PVA composite layer is provided, and the PVA composite layer is processed by using the above-mentioned method for using a three-dimensional texture water transfer PVA layer.

[0029] Use of a three-dimensional texture water transfer PVA layer in the preparation of a workpiece with three-dimensional patterns, and the three-dimensional texture water transfer PVA layer is processed by using the above-mentioned method for using a three-dimensional texture water transfer PVA layer.

[0030] The technical solution provided by the present invention may include the following beneficial effects:

[0031] This solution provides a method for using a three-dimensional texture water transfer PVA layer. By applying the three-dimensional texture water transfer PVA layer to a workpiece, an oil-soluble ink with three-dimensional patterns can be water transferred to the surface of the workpiece, and UV curing of the oil-soluble ink with three-dimensional patterns can be achieved, so as to solve the problems of cumbersome steps for forming three-dimensional patterns, long time and high cost in the existing water transfer technology. Specific embodiments

[0032] The technical solution of this solution will be further described below through specific embodiments.

[0033] A method for using a three-dimensional texture water transfer PVA layer includes the following steps:

[0034] (1) Soluble three-dimensional patterns are pre-formed on one side of the PVA layer; an oil-soluble ink is applied on the side of the PVA layer with soluble three-dimensional patterns, and the oil-soluble ink covers the soluble three-dimensional patterns;

[0035] When the oil-soluble ink is applied to the PVA layer, an oil-soluble ink layer is formed, and the PVA layer and the oil-soluble ink layer are combined to form a PVA composite layer;

[0036] (2) The PVA layer and its oil-soluble ink are transferred to the water in a water tank and left standing to dissolve the PVA layer in water;

[0037] The PVA composite layer can preferably be subjected to water transfer printing; the PVA composite layer is placed in a water tank, and the PVA composite layer from bottom to top in water is a water-soluble PVA layer and an oil-soluble ink. The temperature of the water tank can be raised to below the solvent evaporation temperature and the curing temperature of the oil-soluble ink. After standing for a period of time, the PVA layer will partially or completely dissolve; the workpiece is inserted into the water tank, and the side to be decorated is pressed against the oil-soluble ink, so that the oil-soluble ink is attached to the surface of the workpiece through the tension of water; after the oil-soluble ink is cured, a three-dimensional pattern identical to the original three-dimensional pattern can be formed.

[0038] (3) Align and press the side of the workpiece to be decorated against the oil-soluble ink so that the workpiece adheres to the oil-soluble ink; the oil-soluble ink is UV ink;

[0039] This solution preferably uses UV ink, and the UV ink is cured by UV curing; during curing, align the surface of the UV ink with a UV lamp to complete the curing. Thus, a three-dimensional structure can be processed by UV, and combined with the advantages of UV curing, this solution can achieve rapid water transfer printing of a three-dimensional structure on the surface of the workpiece, thereby further shortening the time for forming the three-dimensional structure to solve the problem of the long processing time of the three-dimensional structure of the existing film layer.

[0040] (4) Cure and dry the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional pattern.

[0041] This solution provides a method for using a three-dimensional texture water transfer PVA layer. Applying the three-dimensional texture water transfer PVA layer to the workpiece can water transfer the oil-soluble ink with a three-dimensional pattern to the surface of the workpiece and can achieve UV curing of the oil-soluble ink with a three-dimensional pattern, so as to solve the problems of long time and high cost caused by the cumbersome steps of forming a three-dimensional pattern in the existing water transfer technology.

[0042] Preferably, in the step (3), a peelable release film is provided on one or more sides of the workpiece, and the side of the workpiece outside the release film is the side to be decorated;

[0043] In any step after the step (4), the release film is peeled off.

[0044] The release film can cover the non-decorated surface part of the workpiece, so that when the decorated surface of the workpiece extends into the water tank and combines with the oil-soluble ink, it can prevent the non-decorated surface from being printed with the oil-soluble ink, reduce subsequent processing steps, and ensure that the oil-soluble ink is accurately arranged in the required attachment area on a certain side of the workpiece. When the oil-soluble ink is completely cured, the release film can be peeled off.

[0045] Preferably, before step (3), different isolation areas are divided on the same surface of the workpiece to be decorated, and a peelable release film is provided on one or more isolation areas and multiple surfaces of the workpiece;

[0046] In step (4), the release film on one or more isolation areas is removed, and a peelable release film is provided on the cured ink three-dimensional pattern;

[0047] After repeatedly performing steps (1)-(4) multiple times, all release films are removed.

[0048] The non-isolation area of the workpiece is the surface to be decorated; in addition to being provided on different surfaces of the workpiece, the release film can also be provided on different areas of the same surface; before step (3), different isolation areas are divided on the same surface of the workpiece to be decorated, and each different isolation area has a different pattern, which is respectively formed by the soluble three-dimensional patterns of different PVA layers; after the release film is provided on different isolation areas, three-dimensional patterns can be processed in different areas of the same surface. After repeatedly performing (1)-(4), this solution can process ink three-dimensional patterns with complex pattern structures; at the same time, the ink three-dimensional patterns can be arranged on the surface of the workpiece or on the surface of the ink three-dimensional patterns that have been completed on the workpiece surface, so that the three-dimensional patterns on the workpiece surface are richer, not just a single-layer structure, and the patterns can be arranged more complexly. Further, since UV curing is used in this application, the forming time of each ink three-dimensional pattern is short, and the processing efficiency of patterns with complex structures is high.

[0049] Preferably, it further includes: step (5);

[0050] In step (5), the workpiece is movably placed in a water tank at 20-30°C, and the surface of the workpiece in the ink three-dimensional pattern is gently swept.

[0051] In step (3), when the PVA layer and its oil-soluble ink are transferred to the water tank, most of the PVA can be dissolved in water, and a small part may still remain in the ink three-dimensional pattern; thus, when step (5) is performed, the PVA is dissolved in the water tank at 20-30°C, and combined with the gentle sweeping treatment, the PVA remaining on the surface of the ink three-dimensional pattern can be removed. Of course, the temperature in the water tank can also be further increased.

[0052] The water temperature of the water tank can be a fixed temperature value or a temperature rise curve set at 20-30°C.

[0053] Preferably, in step (1), the preparation method of the PVA layer includes the following steps:

[0054] Step (S1): Process the original three-dimensional pattern on the surface of the substrate;

[0055] Process the original three-dimensional texture on the substrate. The original three-dimensional texture has a three-dimensional structure and serves as the male mold for the three-dimensional structure of the subsequent PVA layer, so as to form a female mold on the surface of the PVA layer. Among them, the surface processing of the substrate can adopt well-known film processing methods, such as hot pressing processing method, roll pressing, etc., as long as the three-dimensional texture can be processed.

[0056] Step (S2): Apply PVA slurry on the surface of the substrate and make the PVA slurry cover the original three-dimensional texture.

[0057] When the PVA slurry is applied on the surface of the substrate, the PVA slurry is distributed along the original three-dimensional texture, and after drying, it forms a solid PVA layer, and the soluble three-dimensional texture is formed according to the original three-dimensional texture. For the soluble three-dimensional texture, the convex structure in the PVA slurry corresponds to form a concave structure, and the concave structure corresponds to form a convex structure, so as to form a texture with a three-dimensional structure on the solid PVA layer.

[0058] Step (S3): Dry the substrate, and the PVA slurry forms a PVA layer. The PVA layer forms a soluble three-dimensional texture on one side of the original three-dimensional texture.

[0059] After the moisture of the PVA slurry is removed, a solid layer structure will be formed, thus forming a soluble three-dimensional texture, and this layer structure can be directly stored or transported, and step (S4) is only carried out when needed. Since the three-dimensional textures of the soluble three-dimensional texture and the substrate are combined in opposite directions, the soluble three-dimensional texture is not easily damaged during storage or transportation. The substrate also provides sufficient mechanical strength for the PVA layer.

[0060] Step (S4): Separate the substrate from the PVA layer to expose the soluble three-dimensional texture.

[0061] When separating the substrate from the PVA layer, the soluble three-dimensional texture is exposed on the outer surface, which has a three-dimensional texture and can be used to provide a three-dimensional texture structure for other films, paints or layers.

[0062] Preferably, in step (S1), the substrate is a PET board, and the original three-dimensional texture is formed by hot pressing on the surface of the substrate through a pattern roller.

[0063] The substrate can be selected from well-known materials according to needs, such as adhesion needs, function needs, strength needs, etc.; in this solution, it is preferred to use a PET board as the substrate. PET has the advantages of creep resistance, fatigue resistance, abrasion resistance, good dimensional stability, small wear and high hardness, and is very suitable as the substrate of this application. Especially its creep resistance, fatigue resistance and dimensional stability are good, the strength of the original three-dimensional texture on its surface is high, and the texture is not easy to change after combining with PVA, with high stability, which is convenient for storage and transportation and can be reused.

[0064] Preferably, in the step (S1), a raw three-dimensional texture is formed according to a preset pattern;

[0065] After applying an oil-soluble ink on one side of the PVA layer where the soluble three-dimensional texture is located during or after the step (S1), glitter powder and / or coloring matter are added along the path direction of some of the textures in the soluble three-dimensional texture.

[0066] The raw three-dimensional texture is a texture customized manually. Glitter powder and / or coloring matter can be added before and after the curing of the oil-soluble ink, so that the glitter powder and / or coloring matter can extend along the path direction of some of the textures. Especially before the curing of the oil-soluble ink, the glitter powder and / or coloring matter are applied into the oil-soluble ink, and are placed in the texture after curing, further improving the decorative effect and hand feeling of the pattern. Different glitter powders and / or coloring matters can be used for different texture shapes, and the manifestation of color sense and touch feeling is richer.

[0067] A workpiece, on the surface of which a PVA composite layer is provided, and the PVA composite layer is processed by the above-mentioned method for using a three-dimensional texture water transfer PVA layer.

[0068] Use of a three-dimensional texture water transfer PVA layer in the preparation of a workpiece with three-dimensional textures, and the three-dimensional texture water transfer PVA layer is processed by the above-mentioned method for using a three-dimensional texture water transfer PVA layer.

[0069] Example A:

[0070] (1) One side of the PVA layer is pre-formed with soluble three-dimensional textures by rolling and hot pressing; an oil-soluble ink is applied on one side of the PVA layer where the soluble three-dimensional textures are located, and the oil-soluble ink covers the soluble three-dimensional textures; the oil-soluble ink is UV ink;

[0071] (2) The PVA layer and its oil-soluble ink are transferred into the water in a water tank and left standing to dissolve the PVA layer in water;

[0072] (3) The workpiece is aligned with and pressed against the oil-soluble ink on the side to be decorated, so that the workpiece adheres to the oil-soluble ink;

[0073] (4) The oil-soluble ink on the workpiece is UV-cured and dried, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional texture.

[0074] (5) The workpiece is placed in a water tank at 20°C to clean the residual PVA.

[0075] Example B:

[0076] (1) Soluble three-dimensional textures are pre-formed on one side of the PVA layer; an oil-soluble ink is applied on one side of the PVA layer where the soluble three-dimensional textures are located, and the oil-soluble ink covers the soluble three-dimensional textures; the oil-soluble ink is UV ink;

[0077] Method for forming soluble three-dimensional texture on PVA layer, comprising:

[0078] Step (S1): Process original three-dimensional texture on the surface of a PET substrate;

[0079] Step (S2): Apply PVA slurry on the surface of the PET substrate and make the PVA slurry cover the original three-dimensional texture;

[0080] Step (S3): Dry the PET substrate, the PVA slurry forms a PVA layer, and the PVA layer forms a soluble three-dimensional texture on one side of the original three-dimensional texture;

[0081] Step (S4): Separate the PET substrate from the PVA layer to expose the soluble three-dimensional texture.

[0082] (2) Transfer the PVA layer and its oil-soluble ink into the water in a water tank, let it stand still, and dissolve the PVA layer in water;

[0083] (3) Align and press the workpiece against the oil-soluble ink on the side to be decorated, so that the workpiece adheres to the oil-soluble ink;

[0084] (4) Conduct UV curing and drying on the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional texture.

[0085] (5) Place the workpiece in the water tank movably, gradually raise the water temperature in the water tank from 20°C to 30°C, and gently sweep the surface of the workpiece where the ink three-dimensional texture is located.

[0086] Example C:

[0087] (1) Pre-form a soluble three-dimensional texture on one side of the PVA layer; apply oil-soluble ink on the side of the PVA layer where the soluble three-dimensional texture is located, and the oil-soluble ink covers the soluble three-dimensional texture; the oil-soluble ink is UV ink;

[0088] Method for forming soluble three-dimensional texture on PVA layer, comprising:

[0089] Step (S1): Process original three-dimensional texture on the surface of a PET substrate;

[0090] Step (S2): Apply PVA slurry on the surface of the PET substrate and make the PVA slurry cover the original three-dimensional texture;

[0091] Step (S3): Dry the PET substrate, the PVA slurry forms a PVA layer, and the PVA layer forms a soluble three-dimensional texture on one side of the original three-dimensional texture;

[0092] Step (S4): Separate the PET substrate from the PVA layer to expose the soluble three-dimensional texture.

[0093] (2) Transfer the PVA layer and its oil-soluble ink into the water in the water tank, let it stand still, and dissolve the PVA layer in water; Align the side of the workpiece to be decorated and press it against the oil-soluble ink so that the workpiece adheres to the oil-soluble ink.

[0094] (3) Set a peelable release film on one or more sides of the workpiece. The side of the workpiece other than the release film is the side to be decorated.

[0095] (4) Perform UV curing and drying on the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form a three-dimensional ink pattern.

[0096] (5) Peel off the release film; Place the workpiece in the water tank, gradually heat the water temperature in the water tank from 20°C to 25°C, and gently sweep the surface of the workpiece with the three-dimensional ink pattern.

[0097] Example D:

[0098] (1) A soluble three-dimensional pattern is pre-formed on one side of the PVA layer; Apply the oil-soluble ink on the side of the PVA layer with the soluble three-dimensional pattern, and the oil-soluble ink covers the soluble three-dimensional pattern; The oil-soluble ink is UV ink.

[0099] The method for forming the soluble three-dimensional pattern on the PVA layer includes:

[0100] Step (S1): Process the original three-dimensional pattern on the surface of the PET substrate.

[0101] Step (S2): Apply the PVA slurry on the surface of the PET substrate and make the PVA slurry cover the original three-dimensional pattern.

[0102] Step (S3): Dry the PET substrate, and the PVA slurry forms a PVA layer. A soluble three-dimensional pattern is formed on the side of the PVA layer with the original three-dimensional pattern.

[0103] Step (S4): Separate the PET substrate from the PVA layer to expose the soluble three-dimensional pattern. Remove the release film in one or more isolation areas, and set a peelable release film on the cured three-dimensional ink pattern.

[0104] (2) Transfer the PVA layer and its oil-soluble ink into the water in the water tank, let it stand still, and dissolve the PVA layer in water; Divide 4 different isolation areas on the same side of the workpiece to be decorated, and set release films on 3 of the isolation areas and the remaining sides of the workpiece.

[0105] (3) Align the side of the workpiece to be decorated and press it against the oil-soluble ink so that the workpiece adheres to the oil-soluble ink.

[0106] (4) Perform UV curing and drying on the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form a three-dimensional ink pattern.

[0107] (5) Place the workpiece actively in the water tank, and the water temperature in the water tank is gradually increased from 20 °C to 30 °C.

[0108] Example E:

[0109] (1) On one side of the PVA layer, soluble three-dimensional patterns are pre-formed by roll pressing and hot pressing; on the side of the PVA layer with the soluble three-dimensional patterns, oil-soluble ink is applied. The oil-soluble ink covers the soluble three-dimensional patterns, and magnesium metal glitter powder is added along the path direction of some of the patterns in the soluble three-dimensional patterns; the oil-soluble ink is UV ink;

[0110] (2) Transfer the PVA layer and its oil-soluble ink to the water in the water tank and let it stand still to dissolve the PVA layer in water;

[0111] (3) Align and press the workpiece against the oil-soluble ink on the side to be decorated so that the workpiece adheres to the oil-soluble ink;

[0112] (4) UV-cure and dry the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional pattern.

[0113] (5) Place the workpiece in a 30 °C water tank and clean the remaining PVA.

[0114] The technical principle of this solution is described above in combination with specific embodiments. These descriptions are only for explaining the principle of this solution and cannot be interpreted in any way as a limitation on the protection scope of this solution. Based on the explanations here, those skilled in the art can think of other specific implementation manners of this solution without creative labor, and these manners will fall within the protection scope of this solution.

Claims

1. A method for using a three-dimensional texture water transfer printing PVA layer, characterized in that, It includes the following steps: (1) Soluble three-dimensional patterns are pre-formed on one side of the PVA layer; an oil-soluble ink is applied to the side of the PVA layer with the soluble three-dimensional patterns, and the oil-soluble ink covers the soluble three-dimensional patterns; the oil-soluble ink is UV ink; (2) Transfer the PVA layer and its oil-soluble ink to the water in a water tank, and let it stand still to dissolve the PVA layer in water; (3) Align and press the workpiece against the oil-soluble ink on the side to be decorated, so that the workpiece adheres to the oil-soluble ink; (4) Perform UV curing and drying on the oil-soluble ink on the workpiece, and the oil-soluble ink cures on the surface of the workpiece to form an ink three-dimensional pattern; Before step (3), a release film is set on different sides and different areas of the same side of the workpiece, and the same side of the workpiece to be decorated is divided into different isolation areas. Release films that can be peeled off are set on multiple isolation areas and multiple sides of the workpiece. The non-isolation area of the workpiece is the side to be decorated; each different isolation area has a different pattern, which is respectively formed by the soluble three-dimensional patterns of different PVA layers; after the release film is set on different isolation areas, three-dimensional patterns are processed in different areas on the same side; In step (4), the release films in multiple isolation areas are removed, and a release film that can be peeled off is set on the cured ink three-dimensional pattern; After repeatedly executing steps (1)-(4) multiple times, all release films are removed to process an ink three-dimensional pattern.

2. The method for using a three-dimensional texture water transfer printing PVA layer according to claim 1, characterized in that, It also includes: step (5); Step (5): Place the workpiece actively in a water tank at 20-30 °C, and gently sweep the surface of the workpiece with the ink three-dimensional pattern.

3. A method for using a three-dimensional texture water transfer printing PVA layer according to any one of claims 1-2, characterized in that, In step (1), the preparation method of the PVA layer includes the following steps: Step (S1): Process original three-dimensional patterns on the surface of the substrate; Step (S2): Apply PVA slurry on the surface of the substrate, and make the PVA slurry cover the original three-dimensional patterns; Step (S3): Dry the substrate, and the PVA slurry forms a PVA layer. A soluble three-dimensional pattern is formed on one side of the PVA layer with the original three-dimensional pattern; Step (S4): Separate the substrate from the PVA layer to expose the soluble three-dimensional pattern.

4. The method for using a three-dimensional texture water transfer printing PVA layer according to claim 3, characterized in that, In step (S1), the substrate is a PET board, and original three-dimensional patterns are formed on the surface of the substrate by hot pressing with a pattern roller.

5. The method of using a three-dimensional texture water transfer printing PVA layer according to claim 3, characterized in that, In step (S1), original three-dimensional patterns are formed according to a preset pattern; In or after step (S1), after applying an oil-soluble ink to the side of the PVA layer with the soluble three-dimensional pattern, glitter powder and / or colorant are added along the path direction of some patterns in the soluble three-dimensional pattern.

6. A workpiece, characterized in that, A PVA composite layer is provided on the surface of the workpiece, and the PVA composite layer is processed by using a method for using a three-dimensional texture water transfer PVA layer according to any one of claims 1-5.

7. Use of a three-dimensional texture water transfer printing PVA layer in preparing a workpiece with three-dimensional texture, characterized in that, The three-dimensional texture water transfer PVA layer is processed by using a method for using a three-dimensional texture water transfer PVA layer according to any one of claims 1-5.