SMC (Sheet Molding Compound) colored composite wallboard
By employing a composite structure in SMC wall panels consisting of a nano-coating, a transfer layer, an SMC molded base layer, a filling insulation layer, and a back panel, the problem of mold growth on colored decorative paper has been solved. This results in a smooth and glossy wall panel surface with rich colors and enhanced texture, while also improving stability and service life.
Patent Information
- Application Number
- CN202520450722.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The colored decorative paper on existing SMC wall panels is prone to mold growth during use, leading to surface defects and affecting the performance.
It adopts a composite structure of nano-coating, transfer layer, SMC molded base layer, filling insulation layer and back plate, which are tightly bonded by adhesive, and the cooperation of protrusions and grooves, vertical plates and hollow grooves is used to enhance the firmness between layers.
This results in a smooth, glossy wall panel surface with rich colors and enhanced texture, while avoiding the problem of mold growth on colored decorative paper, thus improving the stability and lifespan of the wall panel.
Smart Images

Figure CN223907709U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to composite wallboard technical field, specifically is a kind of SMC color composite wallboard. BACKGROUND
[0002] SMC wallboard is divided into two kinds according to research and development time length, one is the earliest SMC wallboard with stone grain / skin grain in domestic, its obvious place is that wallboard is relatively rough, without luster, and it is difficult to clean, and the whole bathroom with low price on market is basically still using this kind of wallboard, another kind is SMC decorative paper moulding wallboard, it is the wallboard that domestic previous glass steel wallboard manufacturing, lack of whole bathroom system manufacturing technology's whole bathroom manufacturer now mainly uses;
[0003] At present, the main problems of SMC moulding decorative paper wallboard used in whole bathroom are as follows: color wallboard is manufactured by adding color decorative paper moulding process, color decorative paper is solidified in wallboard surface layer, so that wallboard surface layer will appear mildew defect after several years of use, thereby affecting use. SUMMARY
[0004] (I) technical problem solved
[0005] In view of the deficiencies in the prior art, the utility model provides a kind of SMC color composite wallboard.
[0006] (II) technical scheme
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: SMC color composite wallboard is sequentially provided with nano coating, transfer layer, SMC moulding base layer, filling insulation layer and backboard from top to bottom;
[0008] The nano coating, transfer layer, SMC moulding base layer, filling insulation layer and backboard are sequentially attached, a plurality of recesses are provided at the four corners of the upper surface and the lower surface of the filling insulation layer, and a plurality of protrusions are provided at the four corners of the upper surface of the backboard and the four corners of the lower surface of the SMC moulding base layer, the protrusions being inserted into the recesses.
[0009] Two first hollow grooves and vertical plates are symmetrically provided on both sides of the filling insulation layer, two positioning grooves and second hollow grooves are symmetrically provided on both sides of the SMC moulding base layer and both sides of the backboard, the vertical plates are inserted into the first hollow grooves and the positioning grooves, and limiting plates are provided at both ends of the vertical plates and inserted into the second hollow grooves.
[0010] Further, the improvements of the utility model are that the sizes of the plurality of recesses are the same, the sizes of the plurality of protrusions are the same, the protrusions are cylindrical structures, and the vertical plates and the limiting plates are integrated structures.
[0011] Further, the improvement of the utility model discloses, the nano coating, transfer layer, SMC moulding base layer, filling heat preservation layer and backboard are closely attached through adhesive in proper order, the vertical board is closely attached in the inside of first empty slot and positioning groove through adhesive, the limiting plate is closely attached in the inside of second empty slot through adhesive.
[0012] Further, the improvement of the utility model discloses, the transfer layer adopts color transfer paper.
[0013] Further, the improvement of the utility model discloses, the backboard adopts plastic plate.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the utility model provides a kind of SMC color composite wallboard, with following beneficial effects:
[0016] Good observation quality: surface smooth has luster, color is rich and varied, pattern is clear and beautiful, solve the problem that traditional SMC wallboard surface is rough, no luster;
[0017] Quality sense promotion: by adding filling heat preservation layer, effectively reduce the hollow feeling and plastic sense of wallboard, so that wallboard has better quality sense and stability;
[0018] Through the cooperation of boss and groove, the cooperation of vertical board and first empty slot and second empty slot and the cooperation of limiting plate and second empty slot, can make SMC moulding base layer, filling heat preservation layer and backboard more firmly attached. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the first perspective three-dimensional structure schematic diagram of the utility model;
[0020] Figure 2 It is the second perspective three-dimensional structure schematic diagram of the utility model;
[0021] Figure 3 It is the front view of the utility model Figure 1 ;
[0022] In the drawing: 1, nano coating;2, transfer layer;3, SMC moulding base layer;4, filling heat preservation layer;5, backboard;6, groove;7, boss;8, first empty slot;9, positioning groove;10, second empty slot;11, vertical board;12, limiting plate. DETAILED DESCRIPTION
[0023] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.
[0024] Please refer to Figures 1-3 The SMC color composite wallboard of the utility model is sequentially provided with a nano coating layer 1, a transfer printing layer 2, an SMC mold pressing base layer 3, a filling heat preservation layer 4 and a back plate 5 from top to bottom.
[0025] The nano coating layer 1, the transfer printing layer 2, the SMC mold pressing base layer 3, the filling heat preservation layer 4 and the back plate 5 are sequentially attached, a plurality of grooves 6 are arranged at the four corners of the upper surface and the lower surface of the filling heat preservation layer 4, and a protruding block 7 inserted into the groove 6 is arranged at the four corners of the upper surface of the back plate 5 and the four corners of the lower surface of the SMC mold pressing base layer 3.
[0026] Two first hollow grooves 8 and vertical plates 11 are symmetrically arranged at the two sides of the filling heat preservation layer 4, two positioning grooves 9 and second hollow grooves 10 are symmetrically arranged at the two sides of the SMC mold pressing base layer 3 and the two sides of the back plate 5 respectively, the vertical plate 11 is inserted into the first hollow groove 8 and the positioning groove 9, and the two ends of the vertical plate 11 are provided with limiting plates 12 inserted into the second hollow groove 10.
[0027] In the embodiment, the plurality of grooves 6 are of the same size, the plurality of protruding blocks 7 are of the same size, and the protruding block 7 is of a cylindrical structure, and the vertical plate 11 and the limiting plate 12 are of an integrated structure.
[0028] In the embodiment, the nano coating layer 1, the transfer printing layer 2, the SMC mold pressing base layer 3, the filling heat preservation layer 4 and the back plate 5 are sequentially attached by an adhesive, the vertical plate 11 is attached in the first hollow groove 8 and the positioning groove 9 by the adhesive, and the limiting plate 12 is attached in the second hollow groove 10 by the adhesive.
[0029] In the embodiment, the transfer printing layer 2 adopts color transfer printing paper, and the back plate 5 adopts a plastic plate.
[0030] From outside to inside, they are the nano coating layer 1, the transfer printing layer 2, the SMC mold pressing base layer, the filling heat preservation layer 4 and the back plate 5, and the layers are attached by an adhesive to ensure the integrity and stability of the wallboard.
[0031] The nano coating layer 1;
[0032] Material selection: Choose transparent, non-toxic and harmless nano paint with self-cleaning function. This paint can effectively degrade indoor harmful substances such as formaldehyde and xylene, and has good waterproof and antifouling performance. For example, nano titanium dioxide paint and nano zinc oxide paint.
[0033] Function: Improve the glossiness of the wallboard surface, make the wallboard appearance more beautiful; enhance the wear resistance and corrosion resistance of the surface, facilitate daily cleaning; prevent stains from adhering and keep the wallboard surface clean.
[0034] Transfer layer 2;
[0035] Material selection: Use high-quality color transfer paper to firmly attach patterns and colors to the surface of SMC molded base layer 3 through advanced transfer printing process. The transfer paper has good water resistance and weather resistance, and various colors and patterns can be selected according to different design requirements to realize the personalization of wallboard surface color.
[0036] Function: Solve the problem of personalization of wallboard surface color and meet the needs of different users for decoration style; compared with traditional color paper molding process, transfer layer 2 is more closely combined with SMC molded base layer 3, and is not prone to mold and fall off.
[0037] SMC molded base layer 3;
[0038] Material selection: Use unsaturated polyester resin as matrix, glass fiber as reinforcing material, and add appropriate amount of fillers, curing agents, release agents and other additives to make it through molding process;
[0039] Function: As the main structure layer of the wallboard, it provides basic strength and rigidity, ensures the stability and durability of the wallboard; has certain fireproof, waterproof and moisture-proof performance, and is suitable for humid environment such as whole bathroom.
[0040] Filling and heat preservation layer 4;
[0041] Material selection: Use lightweight, heat preservation and good sound insulation materials such as polyurethane foam or honeycomb aluminum plate. Polyurethane foam has excellent heat preservation and insulation performance, which can effectively reduce heat transfer; honeycomb aluminum plate has good sound insulation effect and structural stability, which can enhance the overall texture of the wallboard and reduce the hollow feeling.
[0042] Function: Improve the heat preservation and insulation performance of the wallboard, reduce energy consumption; enhance the sound insulation effect of the wallboard, provide a quiet indoor environment; fill the internal space of the wallboard, reduce the hollow feeling and make the wallboard have better texture.
[0043] Backboard 5;
[0044] Material selection: high-strength plastic or metal plates are selected, such as polypropylene plates or aluminum plates, and the back plate 5 has good moisture-proof and waterproof performance, which can protect the filling insulation layer 4 from being eroded by external moisture;
[0045] Function: as the back support structure of the wallboard, it enhances the overall strength of the wallboard; prevents moisture from penetrating into the filling insulation layer 4 and the SMC molded base layer 3, prolonging the service life of the wallboard.
[0046] Smooth and glossy surface, rich and diverse colors, clear and beautiful patterns, solving the problem of rough and matte surface of traditional SMC wallboard.
[0047] The transfer printing process is used instead of the traditional color decorative paper molding process, which avoids the problem of wallboard surface mold caused by moldy color decorative paper, prolonging the service life of the wallboard.
[0048] By adding the filling insulation layer 4, the hollow feeling and plastic feeling of the wallboard are effectively reduced, making the wallboard have better texture and stability.
[0049] It has good heat preservation, sound insulation, waterproof, moisture-proof, fireproof and other performances, meeting the use requirements of the whole bathroom and other places.
[0050] Through the cooperation of the protrusion 7 and the groove 6, the cooperation of the vertical plate 11 and the first and second hollow grooves 8 and 10, and the cooperation of the limiting plate 12 and the second hollow groove 10, the SMC molded base layer 3, the filling insulation layer 4 and the back plate 5 can be more firmly attached.
[0051] In the description in this document, it should be noted that the relationship terms such as first and second are only used 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0052] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application.
Claims
1. SMC color composite wallboard, characterized in that: From top to bottom, the nano coating (1), the transfer layer (2), the SMC molding base layer (3), the filling heat preservation layer (4) and the back plate (5) are sequentially arranged. The nano coating (1), the transfer layer (2), the SMC molding base layer (3), the filling heat preservation layer (4) and the back plate (5) are sequentially adhered, a plurality of grooves (6) are arranged at the four corners of the upper surface and the lower surface of the filling heat preservation layer (4), and a plurality of protrusions (7) are arranged at the four corners of the upper surface of the back plate (5) and the four corners of the lower surface of the SMC molding base layer (3) and inserted into the grooves (6). Two first hollow grooves (8) and vertical plates (11) are symmetrically arranged on both sides of the filling heat preservation layer (4), two positioning grooves (9) and second hollow grooves (10) are symmetrically arranged on both sides of the SMC molding base layer (3) and the back plate (5), respectively, the vertical plates (11) are inserted into the first hollow grooves (8) and the positioning grooves (9), and both ends of the vertical plates (11) are provided with limiting plates (12) inserted into the second hollow grooves (10).
2. The SMC color composite wall panel according to claim 1, characterized in that: The plurality of grooves (6) are of the same size, the plurality of protrusions (7) are of the same size, and the protrusions (7) are of a cylindrical structure.
3. The SMC color composite wall panel according to claim 2, characterized in that: The vertical plate (11) and the limiting plate (12) are of an integral structure.
4. The SMC color composite wall panel according to claim 3, characterized in that: The nano coating (1), the transfer layer (2), the SMC molding base layer (3), the filling heat preservation layer (4) and the back plate (5) are sequentially and tightly adhered by an adhesive, the vertical plate (11) is tightly adhered in the first hollow groove (8) and the positioning groove (9) by the adhesive, and the limiting plate (12) is tightly adhered in the second hollow groove (10) by the adhesive.
5. The SMC color composite wall panel according to claim 4, characterized in that: The transfer layer (2) is made of color transfer paper.
6. The SMC color composite wall panel according to claim 5, characterized in that: The back plate (5) is made of a plastic plate.