Composite decorative plate with internal and external texture patterns and manufacturing method thereof

Abstract

The invention discloses a composite decorative plate with internal and external texture patterns and a manufacturing method thereof, a decorative plate comprises a base plate and a decorative layer, the decorative layer comprises a diaphragm layer, an ink layer, an optical layer, an electroplated reflective layer and a 3D external texture layer, and the upper surface of the base plate is compounded with the electroplated reflective layer of the decorative layer to form the decorative plate. The decorative plate is internally and externally provided with texture patterns, obvious three-dimensional touch sense is generated through the 3D outer texture layer on the surface, and finally the three-dimensional effect of the decorative plate in visual sense and touch sense is achieved. Besides, a plurality of layers of patterns are formed by laminating along the depth direction, the patterns are laminated and distributed along different depths, and the patterns of all layers interact with one another, so that the laminated three-dimensional pattern with the depth feeling is finally formed.

Description

Technical Field

[0001] This invention relates to the field of decorative panel technology, specifically to a composite decorative panel with internal and external texture patterns and its manufacturing method. Background Technology

[0002] To enhance the texture of product packaging and decorative materials, various patterns are currently printed on their surfaces. These patterns are typically created using two methods: direct printing and transfer printing to form colored designs on the packaging material surface. For some high-end products, laser transfer film technology is often used to create holographic patterns to improve the sophistication of the packaging surface designs.

[0003] See Chinese invention patent document CN117284009A, which discloses a transfer film for packaging with optically printed patterns and its manufacturing method. The transfer film includes a substrate layer as the film material; a release layer formed by a release agent coated on the surface of the substrate layer; a printing ink layer formed by printing patterns on the surface of the release layer using printing equipment; an optical texture layer formed by coating the surface of the printing ink layer and hot-pressing it using molding equipment; and a metal electroplated reflective layer formed on the surface of the optical texture layer by an electroplating process. The optical texture layer has textures and patterns for refracting light. When this technical solution is used, light can pass through the printing ink layer, then sequentially through the optical texture layer, and finally illuminate the electroplated reflective layer. After being reflected by the electroplated reflective layer, the light is refracted by the optical texture layer and then transmitted through the printing ink layer, creating a dynamic visual effect in the observer's eyes. Although this technical solution can produce a dynamic visual effect, it still has the following shortcomings: First, although it has a visually three-dimensional effect, the product pattern is still flat, and the entire product surface is relatively smooth when touched by the user, lacking a three-dimensional feel.

[0004] Secondly, light is reflected through the electroplated reflective layer and then refracted through the optical texture layer to form a dynamic visual effect. However, the dynamic visual effect lacks depth, and the large area of ​​the electroplated reflective layer will create a direct reflection effect, affecting the visual presentation of the product.

[0005] The applicant has long been producing various transfer films with printed patterns. Combining its own production technology with the shortcomings of existing technology, the applicant proposes the following technical solution. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a composite decorative panel with internal and external texture patterns and its manufacturing method.

[0007] To solve the above-mentioned technical problems, the present invention provides a composite decorative panel with internal and external texture patterns, employing the following technical solution: It comprises a substrate and a decorative layer laminated to the surface of the substrate. The decorative layer includes: a film layer, which serves as the carrier of the decorative layer and is composed of a plastic film; an ink layer, which is attached to the lower surface of the film layer by printing or transfer, and the ink layer forms an ink pattern at least partially; an optical layer, which is attached to the lower surface of the ink layer and forms a holographic optical pattern corresponding to the ink pattern on the optical layer by transfer or hot pressing; an electroplated reflective layer, which is formed on the lower surface of the optical layer by electroplating; and a 3D external texture layer, which is formed on the upper surface of the film layer by UV transfer or hot pressing, or is formed by hot pressing a soft, transparent plastic material and then positioning and bonding it to the upper surface of the film layer; the upper surface of the substrate and the electroplated reflective layer of the decorative layer are laminated together by an adhesive layer to form a decorative panel.

[0008] Furthermore, in the above technical solution, the electroplated reflective layer forms an unplated area through a process of plating removal or etching.

[0009] Furthermore, in the above technical solution, the film layer is made of PET or TPU material.

[0010] The manufacturing method of the composite decorative panel with internal and external texture patterns of the present invention adopts the following technical solution: The method includes the following steps: Step 1: Prepare a film layer. An ink layer is formed on the lower surface of the film layer made of plastic material by direct printing or transfer printing, and an ink pattern is formed in at least a partial position of the ink layer; Step 2: An optical layer is formed on the lower surface of the ink layer by UV transfer printing or hot pressing, and a holographic optical pattern corresponding to the ink pattern is formed on the optical layer; Step 3: An electroplated reflective layer is formed on the lower surface of the optical layer by electroplating; Step 4: A 3D external texture layer is formed on the upper surface of the film layer by UV transfer printing or hot pressing, and a tactile 3D texture pattern is formed in at least a partial position of the 3D external texture layer; Step 5: A decorative layer with the film layer as the carrier is formed after the above steps. The decorative layer is fixed to the surface of the substrate by an adhesive layer on the surface of the electroplated reflective layer, and finally a composite decorative panel is formed.

[0011] Furthermore, in the above technical solution, steps 4 and 5 can be interchanged.

[0012] Furthermore, in the above technical solution, in step 1, optical positioning points are printed in the ink layer, and the optical layer in step 2 is positioned by these optical positioning points.

[0013] Furthermore, in the above technical solution, the electroplated reflective layer forms an unplated area through a process of plating removal or etching.

[0014] Furthermore, in the above technical solution, the substrate is made of a transparent material, and a partially transparent window is formed by the unplated area in the electroplated reflective layer.

[0015] By adopting the above technical solution, the present invention has the following advantages: 1. The decorative panel of the present invention has textured patterns on both the inside and outside, and produces a distinct three-dimensional tactile feel through the 3D outer texture layer on the surface, ultimately achieving a three-dimensional effect in both the visual and tactile aspects of the decorative panel.

[0016] 2. The present invention forms multi-layered patterns by stacking them along the depth direction. These patterns are distributed at different depths and interact with each other to ultimately form a stacked three-dimensional pattern with a sense of depth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the ink layer, optical layer, and electroplated reflective layer in this invention. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0019] See Figure 1 As shown, this is a schematic diagram of the structure of the present invention, and the final decorative panel formed therefrom includes: a substrate 1 and a decorative layer 2.

[0020] The substrate 1 is determined by the material of the product itself, and can be made of wood, plastic or metal.

[0021] The decorative layer 2 includes: a film layer 21, an ink layer 22, an optical layer 23, an electroplated reflective layer 24, and a 3D textured layer 25.

[0022] Specifically, the film layer 21 serves as the carrier of the decorative layer 2. The film layer 21 is generally made of PET film material, but TPU, PVC, PE and other plastic film materials can also be used. For example, when TPU is used instead of PET material, the surface of the final product has a better feel because TPU material itself is elastic.

[0023] The ink layer 22 is attached to the lower surface of the film layer 21 by printing or transfer, and the ink layer 22 forms an ink pattern 220 at least in some areas.

[0024] The ink pattern 220 is the pattern that ultimately gives the decorative panel a dynamically changing pattern effect, and it can be formed by direct printing or transfer printing. Of course, patterns can be printed on areas outside the ink pattern 220 by gravure printing or other methods. These patterns can serve as background patterns for the ink pattern 220, together with the ink pattern 220, forming the surface pattern of the entire decorative panel.

[0025] In addition, to facilitate subsequent alignment, positioning points 221 need to be printed in the ink layer 22. These positioning points 221 are used to determine the position of the ink pattern 220, so as to facilitate the positional correspondence of the subsequent optical layer 23 and the alignment of subsequent operations.

[0026] The optical layer 23 is attached to the lower surface of the ink layer 22. The optical layer 23 is manufactured using UV transfer printing or UV curing imprinting technology. For example, in a preferred embodiment of the invention, an uncured UV photosensitive resin is coated onto the surface of the ink layer 22 by manufacturing a nickel plate with a precise microstructure. The nickel plate is pressed tightly onto the surface coated with UV resin using an imprinting method. Simultaneously, the resin is irradiated with ultraviolet light to cure and solidify. This method forms tiny geometric structures arranged according to certain rules on the surface of the UV optical adhesive, which constitute the holographic optical pattern 230. When external light shines on the holographic optical pattern 230, refraction, interference, or scattering of light occurs, creating a dynamic, colorful holographic effect in the human eye. In this invention, the optical layer 23 does not need to form the holographic optical pattern 230 on the entire coated surface; it only needs to form the holographic optical pattern 230 at the position corresponding to the ink pattern 220. Thus, the user can observe the dynamically changing pattern formed by the ink pattern 220 through the optical layer 23.

[0027] The electroplated reflective layer 24 is a metal plating layer formed on the lower surface of the optical layer 23 by electroplating. In this invention, the electroplated reflective layer 24 serves as a reflective layer for reflecting light, and is typically made of electroplated aluminum. In existing products, the electroplated reflective layer usually covers the entire product area, and light is reflected through the electroplated reflective layer. This large-area electroplated reflective layer creates a direct reflective effect, affecting the visual presentation of the product. This invention forms unplated areas through stripping or etching, thereby forming a first electroplated area 240 and a second electroplated area 241 on the lower surface of the optical layer 23, corresponding to the holographic optical pattern 230. The first electroplated area 240 serves as a reflective mirror of the holographic optical pattern 230, causing the ink pattern 220 to form a dynamically changing pattern. The second electroplated area 241 serves as a background reflective pattern area, allowing the final decorative panel to form a pattern with depth, and avoiding the shortcomings of large-area reflection caused by full-area electroplating.

[0028] The unplated areas of this invention can be formed using a stripping process or a chemical etching process. For example, after forming the electroplated reflective layer 24 by vacuum evaporation or similar methods, a chemically resistant protective ink (such as UV ink or resin ink) is applied to the patterned areas where the metallic texture needs to be retained. The areas where the aluminum needs to be "washed off" remain exposed, without the protective ink covering. Then, the printed protective layer is immersed in or coated with a specific chemical solution (such as sodium hydroxide, NaOH) to corrode and dissolve the exposed aluminum layer without the protective ink covering. The aluminum layer covered with the protective ink is protected and will not be corroded by the chemical solution, thus remaining intact. Finally, it is neutralized by washing with water.

[0029] The 3D textured layer 25 is attached to the upper surface of the film layer 21, and at least a portion of the 3D textured layer 25 has a 3D pattern 250 formed thereon. The 3D textured layer 25 can also be made of UV photosensitive resin, and the 3D pattern 250 is formed by transfer or imprinting. That is, these 3D patterns 250 form a tactile 3D texture pattern that can be perceived by the user through touch.

[0030] The 3D outer texture layer 25 can also be formed by directly hot-pressing soft transparent plastic materials such as TPU through high frequency, and then positioning and attaching it to the upper surface of the film layer (21).

[0031] The 3D pattern 250 can correspond to the position of the ink pattern 220. Thus, the corresponding positions on the final decorative panel are formed sequentially from the outside to the inside by the 3D pattern 250, the ink pattern 220, and the holographic optical pattern 230. These patterns are stacked at different depths and interact with each other to form a stacked three-dimensional pattern with a sense of depth.

[0032] Of course, the 3D pattern 250 may also include other areas distributed in a position that does not correspond to the position of the ink pattern 220. These 3D patterns 250 distributed in other positions can directly form specific patterns such as product trademarks, logos, and codes, thus playing an anti-counterfeiting role.

[0033] In a preferred embodiment, the 3D pattern 250 on the outer 3D texture layer 25 is machined from a metal sheet using CNC equipment. To integrate the photolithography effect into the mold, the metal sheet can be polished, coated or screen-printed with a layer that increases adhesion, and then a photolithographic image can be transferred onto this coating using UV adhesive before CNC machining. This results in a deeper tactile texture on the machined surface, while the photolithographic texture remains in the unmachined areas. These photolithographic textures can create a visually striking nano- or micron-level photolithographic effect, while the machined areas retain a deeper tactile texture, thus tightly combining the photolithographic texture and the machined tactile texture.

[0034] Based on the above description, the manufacturing method of the present invention will now be described in detail. The manufacturing method includes the following steps: Step 1: Prepare a film layer 21, and form an ink layer 22 on the lower surface of the film layer 21, wherein the ink layer 22 has an ink pattern 220 formed at least partially. At the same time, optical positioning points 221 are printed in the ink layer 22.

[0035] Step 2: An optical layer 23 is coated on the lower surface of the ink layer 22, and a holographic optical pattern 230 corresponding to the ink pattern 220 is formed on the optical layer 23 by positioning the optical positioning point 221.

[0036] Step 3: An electroplated reflective layer 24 is formed on the lower surface of the optical layer 23 by electroplating. The electroplated reflective layer 24 has unplated areas formed by stripping or etching. The electroplated reflective layer 24 forms a first electroplated area 240 corresponding to the holographic optical pattern 230. A second electroplated area 241 can also be formed in other areas as needed.

[0037] Step 4: A 3D textured layer 25 is laminated onto the upper surface of the film layer 21 by means of transfer or hot pressing, and the 3D textured layer 25 has a 3D pattern 250 formed at least in some parts.

[0038] Step 5: After the above steps, a decorative layer 2 with the film layer 21 as the carrier is formed. The decorative layer 2 is then bonded and fixed to the surface of the substrate 1 through the electroplated reflective layer 24 and the adhesive layer 3, thus forming a composite decorative panel.

[0039] In a preferred embodiment of the present invention, the substrate 1 is made of a transparent material (such as transparent plastic, glass, etc.), so that the unplated area in the electroplated reflective layer 24 can form a partially transparent window effect. The user can directly observe the interior of the substrate 1 through this unplated area. Of course, the unplated area can be formed into a specific shape to enhance the visual effect.

[0040] In addition, steps 4 and 5 can be interchanged, that is, the decorative layer 2 can be fixed to the substrate 1 first, and then the 3D outer texture layer 25 can be formed.

[0041] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A composite decorative panel having an inner and outer texture pattern, comprising: A substrate (1) and a decorative layer (2) compounded on the surface of the substrate (1), characterized in that the decorative layer (2) comprises: a film layer (21) serving as a carrier of the decorative layer (20) and being made of a plastic film; an ink layer (22) attached to the lower surface of the film layer (21) by printing or transfer printing, the ink layer (22) at least partially forming an ink pattern (220); an optical layer (23) attached to the lower surface of the ink layer (22), the optical layer (23) being formed by UV transfer printing or hot pressing to form a holographic optical pattern (230) corresponding to the ink pattern (220); an electroplated light-reflecting layer (24) formed on the lower surface of the optical layer (23) by electroplating; a 3D outer texture layer (25) formed on the upper surface of the film layer (21) by UV transfer printing or hot pressing, or formed by hot pressing of a soft transparent plastic material and then positioned and attached to the upper surface of the film layer (21); the upper surface of the substrate (1) and the electroplated light-reflecting layer (24) of the decorative layer (2) are compounded by a glue layer (3) to form a decorative plate.

2. The composite decorative panel having an inner and outer texture pattern according to claim 1, characterized in that: The electroplated light-reflecting layer (24) forms an un-electroplated area by stripping or etching.

3. The composite decorative panel having an inner and outer texture pattern according to claim 1, wherein: The film layer (21) is made of PET or TPU material.

4. A method of manufacturing a composite decorative sheet material having an inner and outer texture pattern, characterized by, The manufacturing method comprises the following steps: Step 1: preparing the film layer (21), the lower surface of the film layer (21) made of plastic material is formed with the ink layer (22) by direct printing or transfer printing, and the ink layer (22) at least partially forms the ink pattern (220); Step 2: the lower surface of the ink layer (22) is formed with the optical layer (23) by UV transfer printing or hot pressing, and the optical layer (23) forms the holographic optical pattern (230) corresponding to the ink pattern (220); Step 3: the electroplated light-reflecting layer (24) is formed on the lower surface of the optical layer (23) by electroplating; Step 4: a 3D outer texture layer (25) is formed on the upper surface of the film layer (21) by UV transfer printing or hot pressing, and the 3D outer texture layer (25) at least partially forms the 3D texture pattern with touch; Step 5: the decorative layer (2) with the film layer (21) as the carrier is formed through the above steps, and the decorative layer (2) is fixed to the surface of the substrate (1) through the glue layer (3) on the surface of the electroplated light-reflecting layer (24) to finally form the compounded decorative plate.

5. A method of manufacturing a composite decorative panel having an inner and outer texture pattern, characterized in that, The manufacturing method comprises the following steps: Step 1: preparing the film layer (21), the lower surface of the film layer (21) made of plastic material is formed with the ink layer (22) by direct printing or transfer printing, and the ink layer (22) at least partially forms the ink pattern (220); Step 2: the lower surface of the ink layer (22) is formed with the optical layer (23) by UV transfer printing or hot pressing, and the optical layer (23) forms the holographic optical pattern (230) corresponding to the ink pattern (220); Step 3: the electroplated light-reflecting layer (24) is formed on the lower surface of the optical layer (23) by electroplating; Step 4: The decorative layer (2) formed by the above steps is fixed to the surface of the substrate (1) through the glue layer (3) on the surface of the electroplated reflective layer (24) as a carrier; Step 5: A 3D outer layer (25) is formed on the upper surface of the film layer (21) by UV transfer printing or hot pressing, and the 3D outer layer (25) is at least partially provided with a 3D texture pattern with a touch feeling, thereby forming a composite decorative plate.

6. The method of manufacturing a composite decorative panel having an inner and outer texture pattern according to claim 4 or 5, characterized in that: In step 1, the optical positioning point (221) is printed in the ink layer (22), and the optical layer (23) in step 2 is positioned through the optical positioning point (221).

7. The method of claim 6, wherein the method further comprises: The electroplated reflective layer (24) forms an un-plated area by stripping or etching.

8. The method of claim 7, wherein the method further comprises: The substrate (1) is made of transparent material, and a local transparent window is formed through the un-plated area in the electroplated reflective layer (24).

9. The method of manufacturing a composite decorative panel having an inner and outer texture pattern according to claim 4 or 5, characterized in that: The film is made of PET or TPU material.

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