Embedded texture acrylic plate and preparation method thereof

Abstract

The invention belongs to the technical field of acrylic plates, particularly relates to an acrylic plate with embedded textures and a preparation method of the acrylic plate, and aims to maintain excellent physical and chemical properties and easy mechanical processing and thermal forming processing properties of the acrylic plate and solve the problems of poor durability and weather resistance of surface textures. The embedded texture acrylic plate comprises a first surface plate layer, a texture attachment plate layer and a second surface plate layer, and the texture attachment plate layer is located between the first surface plate layer and the second surface plate layer. The preparation method of the embedded texture acrylic plate comprises the following steps: processing a texture pattern on the surface of an original acrylic plate to obtain a texture attachment plate layer; placing the texture attachment plate layer between two glass molds, adding PMMA (polymethyl methacrylate) castable into the glass molds, and then performing water bath heating and high-temperature polymerization to obtain the texture-embedded acrylic plate.

Description

Technical Field

[0001] The invention belongs to the technical field of acrylic plates, and in particular relates to an acrylic plate with embedded textures and a preparation method thereof. Background Art

[0002] Acrylic (PMMA), also known as organic glass, is an organic polymer material that is radiation-free, has good light transmittance, weather resistance, good toughness, and is easy to clean and process. It is widely used in many fields such as aerospace, optics, and architecture. In the field of civilian products, acrylic is used more and more as one of the main production materials for bathtubs and sanitary basins, as a substitute for glass, as a decorative material, and as a billboard material.

[0003] In order to give full play to the processing advantages and plasticity of acrylic materials compared to ceramic materials, in recent years, the research and development focus of acrylic has gradually shifted from the improvement of its physical and chemical properties and the expansion of product categories to the research on its additional functions, such as antibacterial acrylic sheets, antistatic acrylic sheets, textured acrylic sheets, and composite applications of acrylic and other materials.

[0004] Among them, textured acrylic sheets are widely used in the field of interior decoration due to their obvious and rich appearance. However, the process of adding textures to acrylic sheets will affect its thermoforming processing performance, and can only attach the texture to the surface of the acrylic sheet, thus failing to maintain the durability and weather resistance of the texture itself. Because of these two limitations, other application directions of textured acrylic sheets are greatly limited.

[0005] In the prior art, textured acrylic sheets include surface textured acrylic sheets, interlayer textured acrylic sheets, gradient acrylic sheets, and shading acrylic sheets. Surface textured acrylic sheets are textures achieved through some processes such as film pasting, electroplating, and spray painting. Surface textured acrylic sheets are suitable for flat decoration; interlayer textured acrylic sheets are textures achieved by pasting films on at least two layers of acrylic sheets. Interlayer textured acrylic sheets are suitable for flat decoration; gradient acrylic sheets can achieve gradient effects by pasting gradient films on the surface or middle layer, or spray painting; shading acrylic sheets achieve shading effects by spray painting on the surface layer. The following also discloses several methods for preparing textured acrylic sheets, including: spray painting directly on the surface of a solid color sheet, and then applying a protective coating on the sprayed surface, with the sprayed surface being the use surface. It also includes: using water transfer printing to increase texture on the surface of a solid color sheet, and then coating the surface for protection, with the water transfer printed surface being the use surface. It also includes: adding texture to transparent plates by spraying, silk-screen printing, water transfer printing, etc., and then spraying solid color paint on the textured surface to cover it, and using the non-processed surface as the usable surface.

[0006] The prior art has the following technical problems:

[0007] 1. The coating of existing textured acrylic sheets is easily worn during daily use, and the textured surface is easily damaged.

[0008] 2. The coating of existing textured acrylic sheets is prone to fall off in long-term use.

[0009] 3. The existing textured acrylic sheet has a complex preparation process and requires secondary protective layer spraying. The paint sprayed on the surface will corrode the texture, and problems such as adhesion and corrosion resistance need to be solved, which places high requirements on the paint.

[0010] 4. Textured acrylic sheets need to be secondary molded when used as bathroom products, and the texture is prone to deformation and breakage under stretching. Summary of the invention

[0011] The present invention aims to solve the problems existing in the prior art and provides an acrylic sheet with embedded texture and a preparation method thereof. The purpose is to provide a new acrylic sheet that continues the excellent physical and chemical properties of the acrylic sheet itself and is easy to machine and thermoform, while solving the problem of poor durability and weather resistance of the surface texture.

[0012] The technical solution adopted by the present invention is as follows:

[0013] An embedded texture acrylic board comprises: a first surface board layer, a texture attachment board layer and a second surface board layer, wherein the texture attachment board layer is located between the first surface board layer and the second surface board layer.

[0014] The beneficial effects of adopting the above technical solution are as follows: the embedded texture acrylic board of the present invention adopts a three-layer structure design, which ensures the overall strength and stability of the embedded texture acrylic board and prevents the fragility caused by a single-layer material. The texture attachment board layer is located in the middle position, which not only provides decorativeness, but also avoids the influence of external wear on the texture, maintaining long-term beauty.

[0015] Furthermore, one or both sides of the texture attachment board layer are provided with a texture pattern.

[0016] The beneficial effects of adopting the above technical solution are: the texture pattern of the present invention can be customized on one or both sides according to the needs, which increases the diversity and personalized choice of the product. The double-sided texture can provide richer visual effects and enhance the aesthetic value of the product.

[0017] Furthermore, the material of the texture pattern is anti-deformation ink.

[0018] The beneficial effects of adopting the above technical solution are: the anti-deformation ink of the present invention has better weather resistance and prolongs the service life of the texture pattern. The use of anti-deformation ink can ensure that the pattern will not be deformed or faded due to environmental changes during processing and long-term use.

[0019] In a second aspect, in order to solve the above technical problems, the present invention also provides a method for preparing an acrylic plate with embedded textures, which is used to prepare an acrylic plate with embedded textures of the present invention, and the preparation steps include:

[0020] Obtaining an original acrylic plate, and processing a texture pattern on the surface of the original acrylic plate to obtain a texture-attached plate layer;

[0021] Placing the texture-attached board layer between two glass molds, adding PMMA casting material into the glass molds, and obtaining an acrylic board to be formed;

[0022] Heating the acrylic sheet to be formed in a water bath to obtain an acrylic sheet with a preliminary texture;

[0023] The preliminary textured acrylic sheet is polymerized at high temperature to obtain an embedded textured acrylic sheet.

[0024] The beneficial effects of the above technical solution are as follows: the position and shape of the texture can be precisely controlled by first processing the texture and then performing subsequent processing. Rapid curing can be achieved by using water bath heating and high temperature polymerization technology, thereby improving production efficiency. The use of glass molds and appropriate sealing measures can help reduce bubble formation in the product and improve product quality.

[0025] Furthermore, the texture pattern is printed on one or both sides of the original acrylic plate by screen printing.

[0026] The beneficial effect of adopting the above technical solution is that the present invention can provide high-quality pattern resolution through screen printing technology, making the texture more delicate and clear.

[0027] Furthermore, the printing ink described above is an anti-deformation ink.

[0028] The beneficial effects of adopting the above technical solution are: the anti-deformation ink of the present invention is adaptable to various processing conditions and is not easily affected by temperature. In addition, during use, the anti-deformation ink can still maintain a good appearance after long-term use.

[0029] Furthermore, the original acrylic plate and the upper and lower layers of the glass molds are sealed with adhesive strips of different thicknesses.

[0030] The beneficial effect of adopting the above technical solution is that different adhesive strip thicknesses can better adapt to acrylic plates of different sizes to ensure a good sealing effect. When the first surface layer and the second surface layer have different thicknesses, adhesive strips of different thicknesses can help maintain uniform pressure distribution between the plates during heating.

[0031] Furthermore, the thickness of the original acrylic plate accounts for 40% to 80% of the thickness of the embedded texture acrylic plate.

[0032] Furthermore, the water bath heating time is less than four hours.

[0033] The beneficial effect of adopting the above technical solution is that the water bath heating time of the present invention is controlled within four hours, which can speed up the production process and improve production efficiency.

[0034] Furthermore, the thickness of the above-mentioned embedded texture acrylic plate is 8 to 15 mm.

[0035] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0036] 1. The present invention effectively avoids the wear of the texture caused by friction or collision during daily use by embedding the texture pattern inside the acrylic plate instead of simply coating it on the surface. This can maintain the lasting clarity and aesthetics of the texture.

[0037] 2. In the present invention, since the texture pattern is directly processed on the acrylic plate and then integrated through the polymerization process, there is no problem of traditional coating falling off due to long-term use. This makes the product life longer and the maintenance cost lower.

[0038] 3. The preparation method of the present invention eliminates the step of spraying a secondary protective layer, reduces the process, and reduces the difficulty and cost of production. At the same time, it avoids the possibility of corrosion of the texture caused by spraying paint on the surface, and improves the overall quality and production efficiency of the product. And because no additional protective coating is required, the requirements for paint are greatly reduced, thereby reducing the cost of raw materials.

[0039] 4. The present invention enhances the stability of the texture during secondary molding (such as stretching) by using anti-deformation ink and reasonable board thickness design, avoids deformation or even breakage of the texture under stretching, and improves the reliability of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work, among which:

[0041] Figure 1 A schematic flow chart of a method for preparing an acrylic plate with embedded textures provided in one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0044] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0046] Example 1

[0047] Embodiment 1 of the present invention provides an embedded texture acrylic board, comprising: a first surface board layer, a texture attachment board layer and a second surface board layer, wherein the texture attachment board layer is located between the first surface board layer and the second surface board layer.

[0048] The embedded texture acrylic board of the present invention adopts a three-layer structure design, which ensures the overall strength and stability of the embedded texture acrylic board and prevents the fragility caused by a single-layer material. The texture attachment board layer is located in the middle position, which not only provides decorativeness, but also avoids the influence of external wear on the texture, maintaining long-term beauty.

[0049] Optionally, a texture pattern is provided on one side of the texture attachment board layer.

[0050] The texture pattern of the present invention is customized on one side according to the personalized selection of the user.

[0051] Optionally, the material of the texture pattern is anti-deformation ink.

[0052] Among them, the anti-deformation ink of the present invention has better weather resistance, will not be dissolved and deformed by the MMA monomer at high temperature, and will not be deformed or broken after stretching.

[0053] This embodiment 1 also provides a method for preparing an acrylic plate with an embedded texture. Figure 1 As shown, the preparation steps for preparing an embedded texture acrylic plate of the present invention include:

[0054] Obtaining an original acrylic plate, and processing a texture pattern on the surface of the original acrylic plate to obtain a texture-attached plate layer;

[0055] Placing the texture-attached board layer between two glass molds, adding PMMA casting material into the glass molds, and obtaining an acrylic board to be formed;

[0056] Heating the acrylic sheet to be formed in a water bath to obtain an acrylic sheet with a preliminary texture;

[0057] The preliminary textured acrylic sheet is polymerized at high temperature to obtain an embedded textured acrylic sheet.

[0058] The present invention can precisely control the position and shape of the texture by first processing the texture and then performing subsequent processing. The water bath heating and high temperature polymerization technology can achieve rapid curing and improve production efficiency. The use of glass molds and appropriate sealing measures can help reduce bubble formation in the product and improve product quality.

[0059] Optionally, a texture pattern is printed on one side of the original acrylic plate by screen printing.

[0060] Among them, the present invention can provide high-quality pattern resolution through screen printing technology, making the texture more delicate and clear.

[0061] Optionally, the original acrylic plate and the upper and lower layers of the glass molds are sealed with adhesive strips of different thicknesses.

[0062] The rubber strip in this embodiment 1 is a PVC sealing rubber strip.

[0063] Optionally, the water bath heating time is less than four hours.

[0064] Among them, the water bath heating time of the present invention is controlled within four hours, which can speed up the production process and improve production efficiency.

[0065] Optionally, the thickness of the original acrylic sheet accounts for 40% to 80% of the thickness of the embedded texture acrylic sheet.

[0066] Optionally, the thickness of the embedded textured acrylic plate is 8 to 15 mm.

[0067] Example 2

[0068] Embodiment 2 of the present invention provides an embedded texture acrylic board, comprising: a first surface board layer, a texture attachment board layer and a second surface board layer, wherein the texture attachment board layer is located between the first surface board layer and the second surface board layer.

[0069] The embedded texture acrylic board of the present invention adopts a three-layer structure design, which ensures the overall strength and stability of the embedded texture acrylic board and prevents the fragility caused by a single-layer material. The texture attachment board layer is located in the middle position, which not only provides decorativeness, but also avoids the influence of external wear on the texture, maintaining long-term beauty.

[0070] Optionally, texture patterns are provided on both sides of the texture attachment board layer.

[0071] The texture patterns of the present invention are customized on both sides according to the personalized selection of the user, and the two sides can be the same color or different colors.

[0072] Optionally, the material of the texture pattern is anti-deformation ink.

[0073] Among them, the anti-deformation ink of the present invention has better weather resistance, will not be dissolved and deformed by the MMA monomer at high temperature, and will not be deformed or broken after stretching.

[0074] This embodiment 2 also provides a method for preparing an acrylic plate with an embedded texture. Figure 1 As shown, the preparation steps for preparing an embedded texture acrylic plate of the present invention include:

[0075] Obtaining an original acrylic plate, and processing a texture pattern on the surface of the original acrylic plate to obtain a texture-attached plate layer;

[0076] Placing the texture-attached board layer between two glass molds, adding PMMA casting material into the glass molds, and obtaining an acrylic board to be formed;

[0077] Heating the acrylic sheet to be formed in a water bath to obtain an acrylic sheet with a preliminary texture;

[0078] The preliminary textured acrylic sheet is polymerized at high temperature to obtain an embedded textured acrylic sheet.

[0079] The present invention can precisely control the position and shape of the texture by first processing the texture and then performing subsequent processing. The water bath heating and high temperature polymerization technology can achieve rapid curing and improve production efficiency. The use of glass molds and appropriate sealing measures can help reduce bubble formation in the product and improve product quality.

[0080] Optionally, texture patterns are printed on both sides of the original acrylic sheet by screen printing.

[0081] Among them, the present invention can provide high-quality pattern resolution through screen printing technology, making the texture more delicate and clear.

[0082] Optionally, the original acrylic plate and the upper and lower layers of the glass molds are sealed with adhesive strips of different thicknesses.

[0083] The rubber strip in the second embodiment is a PVC sealing rubber strip.

[0084] Optionally, the water bath heating time is less than four hours.

[0085] Among them, the water bath heating time of the present invention is controlled within four hours, which can speed up the production process and improve production efficiency.

[0086] Optionally, the thickness of the original acrylic sheet accounts for 40% to 80% of the thickness of the embedded texture acrylic sheet.

[0087] Optionally, the thickness of the embedded textured acrylic plate is 8 to 15 mm.

[0088] Example 3

[0089] In this embodiment, based on Embodiment 1 or Embodiment 2, the thickness of the embedded texture acrylic plate prepared is 10 mm, wherein the thickness of the texture attachment plate layer is 4 mm, and the total thickness of the first surface plate layer and the second surface plate layer is 6 mm. The thickness of the first surface plate layer and the second surface plate layer may be the same or may not be different.

[0090] Example 4

[0091] In this embodiment, based on Embodiment 1 or Embodiment 2, the thickness of the embedded texture acrylic plate prepared is 10 mm, wherein the thickness of the texture attachment plate layer is 6 mm, and the total thickness of the first surface plate layer and the second surface plate layer is 4 mm. The thickness of the first surface plate layer and the second surface plate layer may be the same or may not be different.

[0092] Example 5

[0093] In this embodiment, based on Embodiment 1 or Embodiment 2, the thickness of the embedded texture acrylic plate prepared is 15 mm, wherein the thickness of the texture attachment plate layer is 9 mm, and the total thickness of the first surface plate layer and the second surface plate layer is 6 mm. The thickness of the first surface plate layer and the second surface plate layer may be the same or may not be different.

[0094] Example 6

[0095] In this embodiment, based on Embodiment 1 or Embodiment 2, the thickness of the embedded texture acrylic plate prepared is 15 mm, wherein the thickness of the texture attachment plate layer is 11 mm, and the total thickness of the first surface plate layer and the second surface plate layer is 4 mm. The thickness of the first surface plate layer and the second surface plate layer may be the same or may not be different.

[0096] Example 7

[0097] In this embodiment, based on the embodiment 1 or the embodiment 2, the thickness of the embedded texture acrylic plate prepared is 12 mm, wherein the thickness of the texture attachment plate layer is 6 mm, the total thickness of the first surface plate layer and the second surface plate layer is 6 mm, and the thickness of the first surface plate layer and the second surface plate layer is the same. The preparation method comprises:

[0098] 1. Use the PMMA casting material formula with a specification of 6mm to normally produce 6.0*1230*2450 transparent original acrylic sheets.

[0099] 2. Use special ink to screen print customized line texture on one side of the 6mm original acrylic board. After drying for 24 hours, the texture attached board layer is obtained.

[0100] 3. Use a 1230*2450 mold, place a 3mm rubber strip on the lower mold, and lay the texture attachment board layer obtained in step 2. Place a 3mm rubber strip on the texture attachment board layer. Ensure that the rubber strips on both sides of the texture attachment board layer are on the same vertical line as much as possible.

[0101] 4. Inject 10.8kg of PMMA castable into the upper and lower 3mm cavities formed by the plate and glass mold. The lower layer (the side with the customized line texture printed on it) uses the white bathroom acrylic sheet formula, and the upper layer uses the transparent bathroom acrylic sheet formula. The other raw material formulas of the two layers of castables use the standard PMMA castable formula in step 1.

[0102] 5. After the injection is completed, exhaust the air in the cavity and push it into the molding frame. Place it in a 60℃ water bath to react for 4 hours.

[0103] 6. After 4 hours, the rack is transferred to a high-temperature furnace at 120°C for reaction for 4 hours. After release packaging, an embedded textured acrylic sheet with a white background and 3mm+9mm transparent layer lines is obtained.

[0104] In summary, through the above embodiments, the effects achieved by the embedded texture acrylic plate of the present invention are:

[0105] 1. One-time molding to obtain an embedded texture acrylic sheet with the texture in the inner layer. This solves the high requirement of the surface texture layer on the adhesion of the texture layer.

[0106] 2. There is no need to perform secondary protective spraying on the surface to avoid damage to the texture layer or damage during use, which simplifies the process, improves efficiency and reduces costs.

[0107] 3. Compared with the conventional double-layer board process sandwich structure, the problem of water entering the bottom plate is solved.

[0108] 4. The thickness of the transparent protective layer (the first surface layer and the second surface half layer) can be set to more than 2mm, so that the product surface has a more layered feel. If the surface is damaged, it can be repaired by polishing, etc., and the texture will not be affected.

[0109] 5. Because the texture is embedded in the acrylic board, other surface effects and processing techniques can be superimposed on its surface, such as frosted effect.

[0110] 6. The embedded texture acrylic sheet can be used for thermoforming to produce various bathroom basins, bathtubs or other products that require acrylic sheets.

[0111] 7. The embedded texture acrylic sheet can easily realize the texture at any position of the product, without being limited by the use method and environment. For example, the texture can be in the basin of the frequently used bathroom basin, in the body of the bathtub, etc. It solves the problem that the texture of conventional texture products can usually only be constructed on the non-use surface or the indirectly used surface to ensure the stability and durability of the texture.

[0112] 8. The preparation scheme of this embedded texture board can be extended to the production of embedded textures of other polymer boards or polymer composite boards.

[0113] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An acrylic plate with embedded texture, characterized in that: include: A first surface ply, a texture attachment ply, and a second surface ply, wherein the texture attachment ply is located between the first surface ply and the second surface ply.

2. The embedded texture acrylic plate according to claim 1, characterized in that: One side or both sides of the texture attachment board layer are provided with a texture pattern.

3. The embedded texture acrylic plate according to claim 2, characterized in that: The material of the texture pattern is anti-deformation ink.

4. A method for preparing an acrylic plate with embedded texture, used for preparing an acrylic plate with embedded texture according to any one of claims 1 to 3, characterized in that: The preparation steps include: Obtaining an original acrylic plate, and processing a texture pattern on the surface of the original acrylic plate to obtain a texture-attached plate layer; Placing the texture-attached board layer between two glass molds, adding PMMA casting material into the glass molds, and obtaining an acrylic board to be formed; Heating the acrylic sheet to be formed in a water bath to obtain an acrylic sheet with a preliminary texture; The preliminary textured acrylic sheet is polymerized at high temperature to obtain an embedded textured acrylic sheet.

5. The method for preparing an acrylic plate with embedded texture according to claim 4, characterized in that: The texture pattern is printed on one or both sides of the original acrylic plate by screen printing.

6. The method for preparing an acrylic plate with embedded texture according to claim 5, characterized in that: The printing ink is an anti-deformation ink.

7. The method for preparing an acrylic plate with embedded texture according to claim 4, characterized in that: The original acrylic plate and the upper and lower layers of the glass molds are sealed with adhesive strips of different thicknesses.

8. The method for preparing an acrylic plate with embedded texture according to claim 4, characterized in that: The thickness of the original acrylic plate accounts for 40% to 80% of the thickness of the embedded texture acrylic plate.

9. The method for preparing an acrylic plate with embedded texture according to claim 4, characterized in that: The water bath heating time is less than four hours.

10. The method for preparing an acrylic plate with embedded texture according to claim 4, characterized in that: The thickness of the embedded texture acrylic plate is 8 to 15 mm.

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