A three-dimensional wallpaper and production method thereof

Abstract

The present invention provides a three-dimensional wallpaper and a production method thereof, wherein the three-dimensional wallpaper comprises: a substrate layer; a primer layer compounded on the substrate layer; a foaming slurry layer compounded on the primer layer; the foaming slurry layer comprises a concave surface and a convex surface; a foaming inhibition slurry layer compounded on the concave surface; and an ink layer compounded on the convex surface and / or the foaming inhibition slurry layer. The three-dimensional wallpaper achieves a three-dimensional effect by combining a foaming slurry layer and a foaming inhibition slurry layer; the texture and shape are jointly determined by the foaming slurry layer and the foaming inhibition slurry layer, and vary with the position and thickness of the foaming inhibition slurry layer coated on the foaming slurry layer; the wallpaper surface can form special textures and patterns, the textures are diverse and beautiful, and full of variability; the design of the textures is easier to control, and wallpaper products with more colorful patterns can be manufactured; at the same time, the production method has the advantages of no size restrictions, no batch restrictions, low cost, and high preparation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of interior decoration materials, and more particularly to a three-dimensional wallpaper and a production method thereof. Background Art

[0002] Wallpaper is a widely used interior decoration material. It is popular in developed countries and regions such as Europe, America, and Japan because of its diverse colors, rich patterns, luxurious style, safety, environmental protection, easy installation, and affordable prices, which are unmatched by other interior decoration materials.

[0003] As living conditions improve, wallpaper, as an indoor decorative material, is becoming increasingly popular, focusing on its performance and decorative effects. Performance primarily encompasses waterproofing, toughness, and strength, while decorative effects also place higher demands on patterns and colors. The aesthetic appeal of wallpaper is becoming a crucial metric for evaluating its value.

[0004] Currently, the surface texture of wallpaper made from foamed slurry is achieved through high-temperature thermal printing. This method of creating texture is also called embossing. The pattern shape of the embossing is relatively simple, and wallpapers pressed by the same embossing roller are consistent. Therefore, few current wallpaper products can meet the requirements of unique shapes and highly variable textures. In addition, because the embossing is produced by printing the foamed slurry layer, the printing process is demanding, especially the control of the thickness of the foamed slurry layer and the operation of the embossing roller, which require precise control. Therefore, traditional wallpaper is not only complex and difficult to produce, but the monotonous embossed patterns cannot match the modern aesthetic concept of diversified needs and high visual appeal, and consumers do not have a wide range of product choices. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a three-dimensional wallpaper and a production method thereof. The three-dimensional wallpaper provided by the present invention has diverse and beautiful textures, and has antibacterial and air-purifying functions. At the same time, the production method has the advantages of no size limit, no batch limit, low cost and high preparation efficiency.

[0006] The present invention provides a three-dimensional wallpaper, comprising:

[0007] substrate layer;

[0008] A primer layer composited on the substrate layer;

[0009] A foaming slurry layer is compounded on the base coating layer; the foaming slurry layer comprises a concave surface and a convex surface;

[0010] A foaming-inhibiting slurry layer compounded on the concave surface;

[0011] An ink layer is compounded on the convex surface and / or the foaming suppressing slurry layer.

[0012] Preferably, the substrate layer is non-woven paper, plain woven fabric, non-woven fabric, wood pulp paper, kraft paper, paper-cloth composite or coated paper.

[0013] Preferably, the thickness of the primer layer is 0.02 mm to 0.05 mm.

[0014] Preferably, the foaming slurry layer is a foaming slurry layer having both antibacterial and air purification functions.

[0015] Preferably, the thickness of the foamed slurry layer is 0.5 mm to 2 mm.

[0016] Preferably, the foaming-inhibiting slurry layer is a foaming-inhibiting slurry layer having both sterilization and air purification functions.

[0017] Preferably, the thickness of the foaming suppression slurry layer is 0.05 mm to 0.2 mm.

[0018] The present invention also provides a method for producing the three-dimensional wallpaper described in the above technical solution, comprising the following steps:

[0019] a) applying a pre-coating liquid on the substrate layer to form a primer layer after drying;

[0020] b) using digital printing to print a foaming slurry on the base coat to form a foaming slurry layer after drying; then locally printing a foaming-inhibiting slurry on the foaming slurry layer to form a foaming-inhibiting slurry layer after drying; then printing ink on the foaming slurry layer and / or the foaming-inhibiting layer to obtain an ink layer after drying; and finally foaming to obtain a three-dimensional wallpaper.

[0021] Preferably, the foaming suppression slurry in step b) comprises the following components:

[0022] 6 to 8 parts by weight of a foaming inhibitor;

[0023] 0.2 to 0.3 parts by weight of a negative ion agent;

[0024] 1 to 2 parts by weight of acrylic resin;

[0025] 1 to 2 parts by weight of chloroacetic acid resin;

[0026] 2 to 3 parts by weight of surfactant;

[0027] 0.3 to 0.8 parts by weight of sodium hydroxide;

[0028] 10 to 20 parts by weight of water.

[0029] Preferably, the foaming process in step b) is specifically as follows:

[0030] The three-dimensional wallpaper before foaming is heated to obtain the three-dimensional wallpaper after foaming; the heating temperature is preferably 180°C to 200°C.

[0031] The present invention provides a three-dimensional wallpaper and a production method thereof, wherein the three-dimensional wallpaper comprises: a substrate layer; a primer layer composited on the substrate layer; a foaming slurry layer composited on the primer layer; the foaming slurry layer comprising a concave surface and a convex surface; a foaming inhibition slurry layer composited on the concave surface; and an ink layer composited on the convex surface and / or the foaming inhibition slurry layer. Compared with the prior art, the three-dimensional wallpaper provided by the present invention achieves a three-dimensional effect by combining a foaming slurry layer and an anti-foaming slurry layer; the texture pattern and shape are jointly determined by the foaming slurry layer and the anti-foaming slurry layer, and vary with the position and thickness of the anti-foaming slurry layer applied on the foaming slurry layer, so that some special textures and patterns can be formed on the surface of the wallpaper. This texture is diverse and beautiful, full of variability, and the design of its pattern is easier to control, and wallpaper products with more colorful patterns can be produced; at the same time, the production method of the three-dimensional wallpaper provided by the present invention adopts a digital printing method. Compared with the existing wallpaper production (the existing wallpaper production width is generally less than 1.5m, and the existing wallpaper production generally adopts traditional processes, such as rotary screen printing, gravure printing, letterpress printing, etc., which requires the preparation of a roller, and the roller rotates to print the pattern on the roller on the substrate, and a repeated pattern will appear with each rotation), since digital printing has the characteristics of rich colors and unlimited patterns, it can save the cost of making rollers, and there will be no pattern repetition and no restrictions on the amplitude size.

[0032] In addition, the present invention adopts a foaming slurry layer with special functions, so that the three-dimensional wallpaper has the functions of antibacterial and air purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of the three-dimensional wallpaper product provided by the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the three-dimensional wallpaper provided by the present invention before foaming;

[0035] Figure 3 This is a schematic structural diagram of the three-dimensional wallpaper after foaming provided by the present invention. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention provides a three-dimensional wallpaper, comprising:

[0038] substrate layer;

[0039] A primer layer composited on the substrate layer;

[0040] A foaming slurry layer is compounded on the base coating layer; the foaming slurry layer comprises a concave surface and a convex surface;

[0041] A foaming-inhibiting slurry layer compounded on the concave surface;

[0042] An ink layer is compounded on the convex surface and / or the foaming suppressing slurry layer.

[0043] See also Figure 1 , Figure 1 This is a schematic structural diagram of the three-dimensional wallpaper product provided by the present invention; wherein 1 is a substrate layer, 2 is a primer layer, 3 is a foaming slurry layer, 4 is a foaming inhibition slurry layer, and 5 is an ink layer.

[0044] The present invention also provides a method for producing the three-dimensional wallpaper described in the above technical solution, comprising the following steps:

[0045] a) applying a pre-coating liquid on the substrate layer to form a primer layer after drying;

[0046] b) using digital printing to print a foaming slurry on the base coat to form a foaming slurry layer after drying; then locally printing a foaming-inhibiting slurry on the foaming slurry layer to form a foaming-inhibiting slurry layer after drying; then printing ink on the foaming slurry layer and / or the foaming-inhibiting layer to obtain an ink layer after drying; and finally foaming to obtain a three-dimensional wallpaper.

[0047] In the present invention, the substrate layer is preferably nonwoven paper, plain woven fabric, nonwoven fabric, wood pulp paper, kraft paper, paper-to-textile composite, or coated paper. The source of the substrate layer is not particularly limited in the present invention; commercially available nonwoven paper, plain woven fabric, nonwoven fabric, wood pulp paper, kraft paper, paper-to-textile composite, and coated paper known to those skilled in the art can be used.

[0048] In the present invention, the primer layer is composited onto the substrate layer; the primer layer is preferably formed from a pre-coating liquid. The present invention has no particular restrictions on the source of the pre-coating liquid; for example, the pre-coating liquid method described in patent document CN201510704246.1, which is well known to those skilled in the art, can be used to prepare the pre-coating liquid. In the present invention, the process of composite primer layer is preferably as follows:

[0049] The base layer is coated with a pre-coating liquid, which is dried to form a primer layer. In the present invention, the drying temperature of the pre-coating liquid is preferably 130°C to 150°C.

[0050] In the present invention, the thickness of the primer layer is preferably 0.02 mm to 0.05 mm.

[0051] In the present invention, the foaming slurry layer is composited on the base coat layer; the foaming slurry layer is preferably a foaming slurry layer having both antibacterial and air purification functions. In the present invention, the foaming slurry layer is preferably formed of a foaming slurry. In the present invention, the foaming slurry preferably includes the following components:

[0052] 100 to 150 parts by weight of resin;

[0053] 0.5 to 1.5 parts by weight of leveling agent;

[0054] 1 to 2 parts by weight of stabilizer;

[0055] 5 to 10 parts by weight of a foaming agent;

[0056] 10 to 20 parts by weight of calcium carbonate;

[0057] 25 to 35 parts by weight of titanium dioxide;

[0058] 2.5 to 3.5 parts by weight of thickener;

[0059] 1 to 3 parts by weight of mugwort powder;

[0060] 1 to 5 parts by weight of an antibacterial agent;

[0061] 50 to 100 parts by weight of solvent;

[0062] CT catalyst 1 to 5 parts by weight.

[0063] In the present invention, the resin preferably includes one or more of an acrylic resin, a PVC resin, and an EVA resin, with an acrylic resin being more preferred. The acrylate resin is preferably selected from one or more of methyl methacrylate, butyl methacrylate, n-butyl methacrylate, and n-butyl acrylate. The present invention does not particularly limit the source of the acrylate resin; commercially available products of methyl methacrylate, butyl methacrylate, n-butyl methacrylate, and n-butyl acrylate, which are well known to those skilled in the art, can be used.

[0064] In the present invention, the leveling agent is preferably selected from one or more of silicone oil, polydimethylsiloxane, melamine-formaldehyde resin, and melamine-formaldehyde resin, and more preferably polydimethylsiloxane. The present invention has no particular limitation on the source of the leveling agent, and commercially available silicone oil, polydimethylsiloxane, melamine-formaldehyde resin, and melamine-formaldehyde resin known to those skilled in the art can be used.

[0065] In the present invention, the stabilizer is preferably selected from one or more of methyl phosphite, ethyl phosphite, epoxidized soybean oil, pentaerythritol, potassium zinc stabilizer, and calcium zinc stabilizer, and more preferably a potassium zinc stabilizer. The present invention has no particular limitation on the source of the stabilizer, and commercially available products of the above-mentioned methyl phosphite, ethyl phosphite, epoxidized soybean oil, pentaerythritol, potassium zinc stabilizer, and calcium zinc stabilizer, which are well known to those skilled in the art, can be used.

[0066] In the present invention, the foaming agent is preferably selected from one or more of azodicarbonamide, diphenylsulfonylhydrazine and dinitrosopentamethylenetetramine. The present invention has no particular limitation on the source of the foaming agent, and commercially available products known to those skilled in the art can be used.

[0067] In the present invention, the thickener is preferably selected from one or more of methyl cellulose, starch, gelatin, polyvinyl alcohol, and polyethylene oxide, more preferably polyvinyl alcohol. The present invention has no particular limitation on the source of the thickener; commercially available products of the aforementioned methyl cellulose, starch, gelatin, polyvinyl alcohol, and polyethylene oxide that are well known to those skilled in the art and capable of achieving a thickening effect may be used.

[0068] In the present invention, the antibacterial agent is preferably selected from one or more of zinc oxide, copper oxide, ammonium dihydrogen phosphate, lithium carbonate, vanillin, chitosan, sorbic acid, turmeric root alcohol, moss bamboo extract, hycitroline alcohol, ethyl vanillins, acylaniliides, isothiazolone derivatives, bisguanidines, quaternary ammonium salts, thiazoles, imidazoles, and phenols, and is more preferably ammonium dihydrogen phosphate or moss bamboo extract. The present invention has no particular limitation on the source of the antibacterial agent, and commercially available products of the above-mentioned zinc oxide, copper oxide, ammonium dihydrogen phosphate, lithium carbonate, vanillin, chitosan, sorbic acid, turmeric root alcohol, moss bamboo extract, hycitroline alcohol, ethyl vanillins, acylaniliides, isothiazolone derivatives, bisguanidines, quaternary ammonium salts, thiazoles, imidazoles, and phenols that are well known to those skilled in the art and capable of achieving antibacterial effects can be used.

[0069] In the present invention, the solvent is preferably selected from one or more of ethyl acetate, butyl acetate, ethyl formate, and isopropyl acetate, and more preferably one or two of ethyl acetate, butyl acetate, ethyl formate, and isopropyl acetate. The present invention is not particularly limited to the source of the solvent; commercially available products of ethyl acetate, butyl acetate, ethyl formate, and isopropyl acetate, which are well known to those skilled in the art, may be used.

[0070] In this invention, the CT catalyst (C = Charge, T = Transfer, catalyst = a substance that catalyzes and accelerates chemical reactions) works by utilizing atmospheric temperature to trigger charge transfer between CT particles and pollutant particles, ultimately generating oxidation and reduction reactions that decompose the pollutant particles. Without the need for water or UV light, the CT catalyst operates 24 hours a day. The heat released from the atmosphere vibrates the crystals within the CT catalyst, inducing charge transfer. This charge transfer leads to oxidation and reduction reactions, providing continuous decomposition. Unlike photocatalysts, CT catalysts operate 24 hours a day without the need for light and achieve ideal VOC decomposition efficiency. They also provide anti-mildew, antibacterial, and deodorizing properties. CT catalysts have obtained international, Chinese, and Japanese patents and have been rigorously tested by internationally recognized organizations such as the Japan Textile Association, the Hong Kong Standards and Testing Center, and the Guangzhou Analysis and Testing Center. The results show that they outperform all other air purification products on the market in terms of removing toxic gases such as formaldehyde and VOCs, as well as preventing bacteria and mildew, ensuring safety, and ensuring usability. At room temperature, the mobile charges of CT catalysts cause repeated redox reactions on surrounding molecules:

[0071] ACID–COOH+O2(+e)→CO2+H2O;

[0072] ALKALINE–(OH)+H→2H2O(+e).

[0073] In the present invention, the process of composite foaming slurry layer is preferably specifically as follows:

[0074] Digital printing is used to print a foaming slurry on the primer layer, which dries to form a foaming slurry layer. In the present invention, the digital printing can form a digital image layer; the digital image layer is preferably a UV image layer, a digital direct inkjet image layer, or a thermal sublimation direct inkjet image layer, more preferably a UV image layer; the UV image layer is formed by UV printing (white ink accumulation), which has a good three-dimensional effect.

[0075] In the present invention, the drying temperature of the foaming slurry is preferably 110°C to 180°C.

[0076] In the present invention, the thickness of the foamed slurry layer is preferably 0.5 mm to 2 mm.

[0077] In the present invention, the foamed slurry layer includes a concave surface and a convex surface; wherein, the concave surface is compounded with a foaming-inhibiting slurry layer, and the convex surface and / or the foaming-inhibiting slurry layer is compounded with an ink layer. It can be seen that the foaming-inhibiting slurry layer is partially arranged on the foamed slurry layer, and together with other parts of the foamed slurry layer compounded with the ink layer, forms a pattern layer of the three-dimensional wallpaper, forming a texture on the wallpaper surface, thereby achieving a three-dimensional effect.

[0078] In the present invention, the anti-foaming slurry layer is compounded on the concave surface of the foaming slurry layer; the anti-foaming slurry layer is preferably an anti-foaming slurry layer that has both sterilization and air purification functions. In the present invention, the anti-foaming slurry layer is preferably formed of an anti-foaming slurry. In the present invention, the anti-foaming slurry preferably includes the following components:

[0079] 6 to 8 parts by weight of a foaming inhibitor;

[0080] 0.2 to 0.3 parts by weight of a negative ion agent;

[0081] 1 to 2 parts by weight of acrylic resin;

[0082] 1 to 2 parts by weight of chloroacetic acid resin;

[0083] 2 to 3 parts by weight of surfactant;

[0084] 0.3 to 0.8 parts by weight of sodium hydroxide;

[0085] 10 to 20 parts by weight of water.

[0086] In the present invention, the foam suppressant is preferably benzotriazole (BTA). The present invention has no particular limitation on the source of the foam suppressant, and commercially available benzotriazoles known to those skilled in the art can be used. In the present invention, the foam suppressant achieves its foam suppression effect by the following principle:

[0087] The foaming suppressant in the foaming slurry layer can form a complex film when the foaming slurry layer foams at high temperature, so that the positions in the foaming slurry layer that would otherwise foam are suppressed, forming unfoamed areas. The foaming suppressant is BTA. In the molecular structure of BTA, there are benzene rings and three N atoms, forming a π bond, and there are lone pairs of electrons in the molecule, which easily form covalent bonds with metals or metal ions, and at the same time easily coordinate and combine with free electrons on adjacent BTA molecules to form complexes. Unpaired free electrons such as calcium ions exist in the foaming slurry layer, which easily form covalent bonds with BTA molecules and coordinate and combine with free electrons on adjacent BTA molecules to form a complex film, which covers the surface of the PVC foaming slurry, suppressing the foaming action of the PVC foaming slurry, thereby achieving a special texture effect of suppressing foaming.

[0088] In the present invention, the negative ion agent has the function of killing pathogens and purifying the air; its mechanism is mainly that after the negative ions combine with bacteria, the bacteria undergo structural changes or energy transfer, leading to bacterial death and eventually sinking to the ground. Medical research shows that negatively charged particles in the air increase the oxygen content in the blood, which is beneficial to the transport, absorption and utilization of blood oxygen, and has the functions of promoting human metabolism, improving human immunity, enhancing human muscle power, and regulating the balance of body functions. According to research, negative ions have inhibitory, alleviating and auxiliary therapeutic effects on seven systems of the human body and nearly 30 kinds of diseases, especially the health care effect on the human body is more obvious. The characteristics of negative ion air purification are fast inactivation speed and high inactivation rate. It has an inactivation effect on microorganisms, bacteria, and viruses in the air and on the surface of objects; it can lift the spirits, eliminate fatigue, improve work efficiency, improve sleep, and increase appetite.

[0089] In the present invention, the acrylic ester resin is preferably selected from one or more of methyl methacrylate, butyl methacrylate, n-butyl methacrylate, and n-butyl acrylate. The present invention does not particularly limit the source of the acrylic ester resin; commercially available products of methyl methacrylate, butyl methacrylate, n-butyl methacrylate, and n-butyl acrylate, which are well known to those skilled in the art, can be used.

[0090] The present invention has no particular limitation on the sources of the chloroacetic acid resin and sodium hydroxide, and commercially available products known to those skilled in the art may be used.

[0091] In the present invention, the surfactant is preferably selected from one or more of polyethylene glycol, glycerol, polysorbate, and polyoxyethylene ether, and more preferably one or two of polyethylene glycol, glycerol, and polysorbate. The present invention has no particular limitation on the source of the surfactant, and commercially available polyethylene glycol, glycerol, polysorbate, and polyoxyethylene ether known to those skilled in the art may be used.

[0092] In the present invention, the process of compounding the foaming inhibition slurry layer is preferably as follows:

[0093] The anti-foaming slurry is locally printed on the foaming slurry layer by digital printing, and the anti-foaming slurry is dried to form the anti-foaming slurry layer. In the present invention, the digital printing is the same as that described in the above technical solution and will not be repeated here.

[0094] In the present invention, the temperature for inhibiting the drying of the foaming slurry is preferably 150°C to 200°C.

[0095] In the present invention, the thickness of the foaming suppression slurry layer is preferably 0.05 mm to 0.2 mm.

[0096] The present invention forms a three-dimensional wallpaper before foaming by combining a foaming slurry layer and a foaming inhibition slurry layer. Figure 2 As shown; Figure 2 This is a schematic diagram of the structure of the three-dimensional wallpaper provided by the present invention before foaming, wherein 1 is the base layer, 2 is the primer layer, 3 is the foaming slurry layer, and 4 is the foaming inhibition slurry layer. Based on this, the present invention foams the three-dimensional wallpaper before foaming, and the foaming process is preferably specifically as follows:

[0097] The three-dimensional wallpaper before foaming is heated to obtain the three-dimensional wallpaper after foaming. In the present invention, the heating temperature is preferably 180°C to 200°C.

[0098] In the present invention, the structural diagram of the three-dimensional wallpaper after foaming is shown in FIG. Figure 3 As shown in FIG, wherein 1 is a substrate layer, 2 is a primer layer, 3 is a foaming slurry layer, and 4 is a foaming inhibition slurry layer. At this time, the foaming slurry layer forms a concave surface and a convex surface.

[0099] In the present invention, the ink layer is laminated onto the raised surface of the foaming slurry layer and / or the anti-foaming slurry layer. Preferably, the ink layer is laminated onto the raised surface of the foaming slurry layer and the anti-foaming slurry layer. The present invention does not particularly limit the type or source of the ink; commercially available wallpaper printing inks well known to those skilled in the art can be used.

[0100] In the present invention, the process of forming the composite ink layer is preferably as follows:

[0101] Ink is printed on the raised surface of the foaming slurry layer and / or the foaming suppression slurry layer to form an ink layer. In the present invention, the printing method is preferably rotary screen printing, gravure printing, flexographic printing or letterpress printing; and the printing is performed in batches according to the number of colors of the printing ink.

[0102] In the present invention, the process of compounding the layers is preferably carried out at 1.5×10 5 Pa~3.0×10 5 The operation was carried out at a pressure of Pa.

[0103] The present invention applies a foaming inhibition slurry layer on the foaming slurry layer. The foaming effect of the foaming slurry layer is inhibited by the foaming inhibition slurry layer, so that the foaming height of the area where the foaming inhibition slurry is applied on the foaming slurry layer is reduced, thereby forming a texture on the foaming slurry layer. The lines and shape of the texture are jointly determined by the foaming slurry layer and the foaming inhibition slurry layer, and vary with the position and thickness of the foaming inhibition slurry layer applied on the foaming slurry layer. Therefore, some special textures and patterns can be formed on the wallpaper surface. This texture is diverse, beautiful, and full of variability, and the design of its lines is easier to control, so that wallpaper products with more colorful patterns can be produced.

[0104] In addition, antibacterial agents and CT catalysts are added to the foaming slurry. The antibacterial agent can increase the antibacterial properties of the wallpaper, and the CT catalyst can degrade VOC and sterilize in 24 hours in the presence or absence of light; negative ion agents are added to the foaming inhibition slurry. The negative ion agent can kill germs and purify the air, so the wallpaper also has the effect of killing germs and purifying the air.

[0105] The present invention provides a three-dimensional wallpaper and a production method thereof, wherein the three-dimensional wallpaper comprises: a substrate layer; a primer layer composited on the substrate layer; a foaming slurry layer composited on the primer layer; the foaming slurry layer comprising a concave surface and a convex surface; a foaming inhibition slurry layer composited on the concave surface; and an ink layer composited on the convex surface and / or the foaming inhibition slurry layer. Compared with the prior art, the three-dimensional wallpaper provided by the present invention achieves a three-dimensional effect by combining a foaming slurry layer and an anti-foaming slurry layer; the texture pattern and shape are jointly determined by the foaming slurry layer and the anti-foaming slurry layer, and vary with the position and thickness of the anti-foaming slurry layer applied on the foaming slurry layer, so that some special textures and patterns can be formed on the surface of the wallpaper. This texture is diverse and beautiful, full of variability, and the design of its pattern is easier to control, and wallpaper products with more colorful patterns can be produced; at the same time, the production method of the three-dimensional wallpaper provided by the present invention adopts a digital printing method. Compared with the existing wallpaper production (the existing wallpaper production width is generally less than 1.5m, and the existing wallpaper production generally adopts traditional processes, such as rotary screen printing, gravure printing, letterpress printing, etc., which requires the preparation of a roller, and the roller rotates to print the pattern on the roller on the substrate, and a repeated pattern will appear with each rotation), since digital printing has the characteristics of rich colors and unlimited patterns, it can save the cost of making rollers, and there will be no pattern repetition and no restrictions on the amplitude size.

[0106] In addition, the present invention adopts a foaming slurry layer with special functions, so that the three-dimensional wallpaper has the functions of antibacterial and air purification.

[0107] In order to further illustrate the present invention, the following examples are provided for detailed description. The raw materials used in the following examples of the present invention are all commercially available commodities.

[0108] Example 1

[0109] (1) Applying a pre-coating liquid on a non-woven fabric with a thickness of 1 mm, and drying at 140° C. to form a primer layer with a thickness of 0.03 mm to 0.04 mm;

[0110] (2) Using digital printing, a foaming slurry is printed on the base coat, and the foaming slurry layer is formed after drying at 150°C; then using digital printing, a foaming inhibiting slurry is partially printed on the foaming slurry layer, and the foaming inhibiting slurry layer is formed after drying at 170°C; then, ink is printed on the convex surface of the foaming slurry layer and the foaming inhibiting slurry layer to form an ink layer; finally, foaming is performed at 190°C to obtain a foamed three-dimensional wallpaper; the process of compounding the above layers is preferably carried out at 2.0×10 5 The operation is performed under a pressure of Pa; a three-dimensional wallpaper is obtained;

[0111] The thickness of the foaming suppression slurry layer of the three-dimensional wallpaper is 0.1 mm, the thickness of the concave surface part of the foaming slurry layer is 1 mm, and the thickness of the convex surface part is 2 mm.

[0112] The foaming slurry includes the following components: 120 parts by weight of acrylic resin, 1 part by weight of polydimethylsiloxane, 1.5 parts by weight of potassium zinc stabilizer, 7 parts by weight of diphenylsulfonyl hydrazide oxide, 15 parts by weight of calcium carbonate, 30 parts by weight of titanium dioxide, 3 parts by weight of polyvinyl alcohol, 2 parts by weight of wormwood powder, 1.5 parts by weight of moxa-bambusa chinensis extract, 75 parts by weight of butyl acetate, and 1.5 parts by weight of CT catalyst.

[0113] The foaming inhibition slurry comprises the following components: 6 parts by weight of benzotriazole, 0.2 parts by weight of a negative ion agent, 1.5 parts by weight of acrylic resin, 1.5 parts by weight of chloroacetic acid resin, 2.5 parts by weight of polyethylene glycol, 0.5 parts by weight of sodium hydroxide, and 16 parts by weight of water.

[0114] Example 2

[0115] The three-dimensional wallpaper was produced according to the production method provided in Example 1; the difference was that:

[0116] The foaming slurry includes the following components: 120 parts by weight of PVC resin, 1 part by weight of polydimethylsiloxane, 1.5 parts by weight of potassium zinc stabilizer, 7 parts by weight of azodicarbonamide, 15 parts by weight of calcium carbonate, 30 parts by weight of titanium dioxide, 3 parts by weight of polyvinyl alcohol, 2 parts by weight of wormwood powder, 3 parts by weight of ammonium dihydrogen phosphate, 75 parts by weight of butyl acetate, and 2 parts by weight of CT catalyst.

[0117] The foaming suppression slurry comprises the following components: 7 parts by weight of benzotriazole, 0.25 parts by weight of a negative ion agent, 1.5 parts by weight of an acrylic resin, 1.5 parts by weight of a chloroacetic acid resin, 2.5 parts by weight of polyethylene glycol and glycerol, 0.5 parts by weight of sodium hydroxide, and 16 parts by weight of water.

[0118] Example 3

[0119] The three-dimensional wallpaper was produced according to the production method provided in Example 1; the difference was that:

[0120] The foaming slurry includes the following components: 120 parts by weight of acrylic resin, 1 part by weight of polydimethylsiloxane, 1.5 parts by weight of potassium zinc stabilizer, 7 parts by weight of diphenylsulfonyl hydrazide oxide, 15 parts by weight of calcium carbonate, 30 parts by weight of titanium dioxide, 3 parts by weight of polyvinyl alcohol, 2 parts by weight of wormwood powder, 5 parts by weight of ammonium dihydrogen phosphate, 75 parts by weight of butyl acetate, and 5 parts by weight of CT catalyst.

[0121] The foaming suppression slurry comprises the following components: 8 parts by weight of benzotriazole, 0.3 parts by weight of a negative ion agent, 1.5 parts by weight of acrylic resin, 1.5 parts by weight of chloroacetic acid resin, 2.5 parts by weight of polysorbate, 0.5 parts by weight of sodium hydroxide, and 16 parts by weight of water.

[0122] Comparative Example

[0123] Ordinary foam wallpaper available on the market.

[0124] The products corresponding to Examples 1 to 3 and the comparative example were subjected to friction resistance testing, color change resistance testing, mildew resistance testing, negative ion induction evaluation, and harmful substance decomposition ability testing (harmful substances include formaldehyde, benzene, and ammonia). The testing methods are as follows:

[0125] 1. Friction resistance test: Tested according to QB / T 4034-2010, 25 dry friction times and 5 wet friction times.

[0126] 2. Fading test: Test according to the fading method specified in QB / T 4034-2010 "Wallpaper".

[0127] 3. Anti-mildew test: Place the above wallpaper in an air humidity of 60% for 30 days, and then observe whether the wallpaper is mildewed under a microscope.

[0128] 4. Evaluate the negative ion induction amount according to JC / T 2040-2010 "Negative Ion Functional Building Interior Decoration Materials".

[0129] 5. Determination of the decomposition capacity of formaldehyde, benzene or ammonia: In a closed 1m 3 Place 10ml of pure formaldehyde, toluene or ammonia water in the space and allow it to equilibrate at 25°C and one atmosphere for 24 hours. Then place 1g of test material in the space and allow it to adsorb and decompose at 25°C for 24 hours. Then measure the total formaldehyde, benzene or ammonia content in the space and calculate the carpet's ability to decompose formaldehyde, benzene or ammonia.

[0130] The test results are shown in Table 1.

[0131] Table 1 Test results of various properties of products corresponding to Examples 1 to 3 and Comparative Examples

[0132]

[0133]

[0134] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional wallpaper, comprising: substrate layer; A primer layer composited on the substrate layer; A foaming slurry layer compounded on the base coating; the foaming slurry layer comprises a concave surface and a convex surface; the foaming slurry layer is a foaming slurry layer having both antibacterial and air purification functions; the thickness of the foaming slurry layer is 0.5 mm to 2 mm; A foam-inhibiting slurry layer is compounded on the concave surface; the foam-inhibiting slurry layer is a foam-inhibiting slurry layer having both sterilization and air purification functions; the thickness of the foam-inhibiting slurry layer is 0.05 mm to 0.2 mm; An ink layer compounded on the convex surface and / or the foaming inhibiting slurry layer; The production method of the three-dimensional wallpaper comprises the following steps: a) Apply pre-coating liquid on the substrate layer to form a primer layer after drying; b) using digital printing to print a foaming slurry on the base coating to form a foaming slurry layer after drying; then partially printing a foaming inhibiting slurry on the foaming slurry layer to form a foaming inhibiting slurry layer after drying; then printing ink on the foaming slurry layer and / or the foaming inhibiting layer to obtain an ink layer after drying, and finally foaming to obtain a three-dimensional wallpaper; The foaming slurry comprises the following components: 120 parts by weight of acrylate resin, 1 part by weight of polydimethylsiloxane, 1.5 parts by weight of potassium zinc stabilizer, 7 parts by weight of dibenzenesulfonyl hydrazide oxide, 15 parts by weight of calcium carbonate, 30 parts by weight of titanium dioxide, 3 parts by weight of polyvinyl alcohol, 2 parts by weight of wormwood powder, 1.5 parts by weight of moxa-stalked bamboo extract, 75 parts by weight of butyl acetate, and 1.5 parts by weight of CT catalyst; The foaming inhibition slurry comprises the following components: 6 parts by weight of benzotriazole, 0.2 parts by weight of a negative ion agent, 1.5 parts by weight of acrylic resin, 1.5 parts by weight of chloroacetic acid resin, 2.5 parts by weight of polyethylene glycol, 0.5 parts by weight of sodium hydroxide, and 16 parts by weight of water.

2. The three-dimensional wallpaper according to claim 1, characterized in that: The substrate layer is non-woven paper, plain woven fabric, non-woven fabric, wood pulp paper, kraft paper, paper-cloth composite or coated paper.

3. The three-dimensional wallpaper according to claim 1, characterized in that: The thickness of the primer layer is 0.02 mm to 0.05 mm.

4. The three-dimensional wallpaper according to claim 1, characterized in that: The foaming process in step b) is specifically as follows: The three-dimensional wallpaper before foaming is heated to obtain the three-dimensional wallpaper after foaming; the heating temperature is 180°C to 200°C.

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