CN115612394B - Preparation method of color super matte decorative plate with three-dimensional lines - Google Patents

Preparation method of color super matte decorative plate with three-dimensional lines Download PDF

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CN115612394B
CN115612394B CN202211322942.2A CN202211322942A CN115612394B CN 115612394 B CN115612394 B CN 115612394B CN 202211322942 A CN202211322942 A CN 202211322942A CN 115612394 B CN115612394 B CN 115612394B
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color
matte
acrylic resin
polyurethane acrylic
coating
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CN115612394A (en
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陈卓成
梁铭通
李林
任杰
陈立
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Zhongshan Yibigu Electron Beam Technology Co ltd
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Zhongshan Yibigu Electron Beam Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones
    • B05D5/066—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones achieved by multilayers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B05D7/26—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic

Abstract

The embodiment of the invention relates to the technical field of decorative boards, in particular to a preparation method of a color super matte decorative board with three-dimensional lines. The method comprises the following steps: the surface of the base plate is positively coated with seal primer coating, after UV curing, a seal primer layer is formed, and sanding treatment is carried out on the seal primer layer; coating the upper surface of the closed primer layer with a color matte coating in a forward and reverse way, irradiating the upper surface with an excimer lamp to form a matte micro-surface, and curing the matte micro-surface by an electron beam curing device to form a color matte paint layer; and pressing the cured plate. The preparation method provided by the embodiment of the invention is simple and easy to operate, the preparation cost is low, the prepared color super matte decorative plate with three-dimensional lines is bright in color, and no initiator is remained on the surface; the pressing vertical depth is deep, no fracture phenomenon exists, and the surface texture of the decorative plate is very fine; the gloss is low, and the color super-matte effect and the skin feel effect with the angle of incidence of 60 degrees of 1-3 degrees and the angle of 85 degrees of less than 15 degrees are achieved.

Description

Preparation method of color super matte decorative plate with three-dimensional lines
The application is a divisional application of Chinese patent application with the application date of 2021, 9 and 27, the application number of 202111137666.8 and the name of 'a preparation method of a color super matte decorative plate with three-dimensional lines'.
Technical Field
The invention relates to the technical field of decorative boards, in particular to a preparation method of a color super matte decorative board with three-dimensional lines.
Background
Along with the development of society and the improvement of living standard of people, the requirements of people on home decoration industry are higher and higher, and the common plane decorative plate lacks beauty and attractive force because the surface of the common plane decorative plate is not provided with three-dimensional lines and patterns, so that the requirements of consumers are difficult to meet. Thus, a decorative sheet with three-dimensional textures is receiving more and more attention. In the prior art, three-dimensional lines of a decorative plate are usually formed by pressing or engraving, and mainly comprise the following modes:
(1) And hot-pressing the melamine veneer to enable the surface of the melamine veneer to be provided with lines. However, the texture which can be pressed by the method is not three-dimensional enough (vertical depth is less than 1 mm), the deformation of the pressed texture is relatively large, the melamine plate is easily torn, the color is not bright, and the glossiness is high;
(2) And (5) carving the density board and then spraying UV paint. The method specifically comprises the steps of spraying a seal primer (about 15-20 mu m) on the carved special-shaped surface of the density board, manually polishing and sanding, then spraying 3-5 colored paint layers (about 10-15 mu m each layer), carrying out UV curing on each colored paint layer, and finally spraying a transparent top paint layer (10-20 mu m) on the colored paint layers, and carrying out UV curing. However, by the series of spraying and curing, not only is the operation complicated and the manpower and material resources consumed, but also the carved fine grains are very easy to be filled by the UV coating, and the obtained decorative board is not bright enough in color and not low enough in glossiness;
(3) The density board is rolled with UV paint and then pressed. The method specifically comprises the steps of firstly rolling a seal primer (about 15-20 mu m) on a density board, then carrying out UV curing sanding, then coating 3-5 layers of color primers (about 10-15 mu m each) on the density board, wherein each layer of color primer needs UV curing, then coating the sanding primer (about 20 mu m), then carrying out UV curing and sanding, finally coating a top coat layer (about 20-25 mu m), then carrying out UV curing, and finally carrying out hot pressing. Therefore, the total thickness of the coating reaches 105-145 mu m when hot pressing is carried out, the coating is easy to crack when hot pressing is carried out, the pattern with the vertical depth of more than or equal to 1mm is difficult to press, and the color is not bright enough.
(4) And sticking a PETG sheet with three-dimensional patterns on the artificial board through hot melt adhesive. Only korean LG can produce the product, the price is high, and the cost of single PETG film material is up to more than 50 yuan per square meter. The integral plate is not heat-resistant after the film is stuck, and layering bubbling between the plate and the film easily occurs when the temperature of the plate surface is higher than 80 ℃.
Therefore, it is necessary to provide a preparation method of a colorful super matte decorative plate with simple and convenient manufacturing process, low cost, fine pressed lines and gorgeous colors.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
Object of the Invention
In order to solve the defects and problems in the prior art, the invention aims to provide a preparation method of a color super matte decorative plate with three-dimensional lines, which solves the problems of complex and complicated preparation process operation, insufficient and gorgeous color of the decorative plate, unsmooth pressed lines, high price and the like in the prior art.
Solution scheme
In order to achieve the purpose of the invention, the embodiment of the invention provides the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for manufacturing a color super matte decorative board with three-dimensional textures, including the following steps:
step 1: the surface of the base plate is positively coated with seal primer coating, after UV curing, a seal primer layer is formed, and sanding treatment is carried out on the seal primer layer;
step 2: coating the upper surface of the closed primer layer with a color matte coating in a forward and reverse way, irradiating the upper surface with an excimer lamp to form a matte micro-surface, and curing the matte micro-surface by an electron beam curing device to form a color matte paint layer;
step 3: and (3) pressing the plate cured in the step (2).
In one possible implementation, before the step 2 of applying the color matte coating, the elastic primer coating is applied on the upper surface of the closed primer layer in a forward and reverse roll manner, and then UV cured to form the elastic primer layer. The elastic primer layer can make the density board surface smoother.
In one possible implementation, the base layer board includes, but is not limited to, a density board, a particle board, a reed board, or a foam board.
In one possible implementation, the thickness of the base plate is 4 to 25mm.
In one possible implementation, the thickness of the closed primer layer is 10-15 μm.
In one possible implementation, the elastic primer layer has a thickness of 15 to 25 μm.
In one possible implementation, the thickness of the colored matte finish layer is 20 to 25 μm.
In one possible implementation, the sealer coating comprises, in mass percent: 10-20% of difunctional polyester acrylic resin, 15-25% of difunctional modified epoxy acrylic resin, 25-30% of active monomer, 20-30% of talcum powder and 2-3% of auxiliary agent.
In one possible implementation, the color matte coating composition includes, in mass percent: 20-25% of difunctional polyurethane acrylic resin, 10-15% of trifunctional polyurethane acrylic resin, 10-20% of hexafunctional polyurethane acrylic resin, 10-15% of active monomer, 1-3% of wax powder, 5-10% of alumina, 3-4% of auxiliary agent and 20-35% of pigment toner. The difunctional polyurethane acrylic resin in the color matte paint increases the tensile property and the matte effect of the color matte paint layer and reduces the glass transition temperature of the cured coating; the trifunctional polyurethane acrylic resin improves the matte effect and silky touch of the color matte finish paint layer system; the six-functional polyurethane acrylic resin increases the toughness, hardness and chemical resistance of the color matte finish paint layer; the component aluminum oxide further improves the hardness and wear resistance of the color matte finish paint layer. The components of the color matte finish paint layer in the invention cooperate to enable the finish paint layer to have a super matte effect with an angle of 60 degrees of 1-3 degrees and an angle of 85 degrees of less than 15 degrees.
In one possible implementation, the elastomeric primer coating composition comprises, in mass percent: 20-30% of modified epoxy acrylate, 10-20% of difunctional polyester acrylic resin, 10-20% of trifunctional polyurethane acrylic resin, 20-30% of active monomer, 15-25% of talcum powder, 3-5% of photoinitiator and 1-2% of auxiliary agent.
In one possible implementation, reactive monomers include, but are not limited to, TPGDA and IBOMA.
In one possible implementation, the adjunct includes, but is not limited to, one or more of byk163, byk110, byk1790, byk333, tego920, or tego410.
In one possible implementation, the UV curing energy of the sealer primer layer is 260-350 mj/cm 2 。
In one possible implementation, the elastic primer layer has a UV curing energy of 300-400 mj/cm 2 。
In one possible implementation, the apparatus used for pressing in the step 3 is a ten-thousand-ton hot press, and the depth of the pressing lines is less than 6mm.
In one possible implementation, the hot pressing temperature in the step 3 is 85-170 ℃, the hot pressing time is 30-45 s, and the pressure is 3-6.5 KGF/CM 2 。
In a second aspect, the invention provides a color super matte decorative board with three-dimensional lines, which is prepared by the method.
Advantageous effects
(1) The embodiment of the invention adopts the high-functional group resin, the high-functional group resin has good interlayer adhesive force of the coating by an electron beam curing mode, the performance can directly meet the requirements of an international finish paint layer, the finish paint layer is not required to be coated on the surface of the resin, the cost is saved, and the thickness of the decorative plate is reduced. The embodiment of the invention adopts an electron beam curing mode, and compared with UV light curing, the problem of penetration of radiation energy in a coating is not required to be considered, so that the color concentration of the color matte coating is extremely high, and the color matte coating is only coated with one layer, which is equivalent to the traditional UV coating which is coated with 3-5 layers, thereby further reducing the thickness of the decorative plate and simultaneously ensuring the color brightness of the decorative plate.
(2) According to the embodiment of the invention, the elastic primer layer is coated between the sealing primer layer and the color matte finish, so that the surface of the substrate is smoother, and the color matte coating is conveniently coated.
(3) The matte decorative board with the three-dimensional lines prepared by the embodiment of the invention has bright color, and no initiator residue exists on the surface; the vertical depth of pressing is deep (1-3 mm), no fracture phenomenon exists, and the surface texture of the decorative plate is very fine.
(4) The components of the color matte finish paint layer in the embodiment of the invention have synergistic effect, so that the prepared decorative board has extremely low gloss, and has super matte effect and skin feel effect with an incidence angle of 60 degrees of 1-3 degrees and an angle of 85 degrees of less than 15 degrees.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some embodiments, materials, elements, methods, means, etc. well known to those skilled in the art are not described in detail in order to highlight the gist of the present invention.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
The materials and reagents used in the examples of the present invention are as follows:
difunctional polyurethane acrylic resin is purchased from Kaiping pose color chemical Co., ltd, and the model is ZC6552;
trifunctional urethane acrylate was purchased from Guangdong Haohui New Material Co., ltd, model CR90421;
the hexafunctional polyurethane acrylic resin is purchased from chemical industry (tin-free) Co., ltd, and the model is UX5400W;
the active monomer is purchased from Jiangsu Sanmu chemical industry;
the photoinitiator is IGM TPO-L.
The experimental methods used in the examples of the present invention are conventional methods used by those skilled in the art unless specifically stated otherwise. Materials, reagents and the like used in the examples are commercially available unless otherwise specified.
Example 1.
A preparation method of a color super matte decorative plate with three-dimensional lines comprises the following steps:
step 1: positive roller coating seal primer coating on the upper surface of the density board, forming a seal primer layer after UV curing, wherein the UV curing energy is 260mj/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the Sanding the closed primer layer; the thickness of the density board is 10mm; the thickness of the sealing primer layer is 10 μm; forming a closed primer layer, and sanding the closed primer layer; the sealing primer layer coating comprises the following components in percentage by mass: difunctional polyester acrylic resin 20%25% of difunctional modified epoxy acrylic resin, 30% of active monomer, 23% of talcum powder and 2% of auxiliary agent.
Step 2: coating the upper surface of the closed primer layer with a color matte coating in a forward and reverse way, irradiating the upper surface with an excimer lamp to form a matte micro-surface, and curing the matte micro-surface by an electron beam curing device to form a color matte paint layer; the color matte coating comprises the following components in percentage by mass: 20% of difunctional polyurethane acrylic resin, 15% of trifunctional polyurethane acrylic resin, 15% of hexafunctional polyurethane acrylic resin, 10% of active monomer, 2% of wax powder, 10% of alumina, 3% of auxiliary agent and 25% of pigment toner; the thickness of the color matte finish paint layer is 20 μm.
Step 3: and (3) hot pressing the density board after the electron beam curing in the step (2) by using a ten-thousand-ton hot press.
Example 2
A preparation method of a color super matte decorative plate with three-dimensional lines comprises the following steps:
step 1: the surface of the density board is coated with seal primer paint in a positive roller way, and the seal primer paint is formed after UV curing; UV curing energy of 260mj/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the Sanding the closed primer layer; the thickness of the density board is 10mm; the thickness of the sealing primer layer is 10 μm; the sealing primer layer coating comprises the following components in percentage by mass: 20% of difunctional polyester acrylic resin, 25% of difunctional modified epoxy acrylic resin, 30% of reactive monomer, 23% of talcum powder and 2% of auxiliary agent.
Step 2: coating an elastic primer coating on the upper surface of the closed primer layer by a forward and reverse roller, and forming an elastic primer layer after UV curing; the elastic primer coating comprises the following components in percentage by mass: 20% of modified epoxy acrylate, 15% of difunctional polyester acrylic resin, 20% of trifunctional polyurethane acrylic resin, 25% of active monomer, 15% of talcum powder, 3% of photoinitiator and 2% of auxiliary agent. The elastic primer layer has a thickness of 15 μm.
Step 3: coating the upper surface of the elastic primer layer with a color matte coating in a forward and reverse way, irradiating the upper surface with an excimer lamp to form a matte micro-surface, and curing the matte micro-surface by an electron beam curing device to form a color matte paint layer; the color matte coating comprises the following components in percentage by mass: 20% of difunctional polyurethane acrylic resin, 15% of trifunctional polyurethane acrylic resin, 15% of hexafunctional polyurethane acrylic resin, 10% of active monomer, 2% of wax powder, 10% of alumina, 3% of auxiliary agent and 25% of pigment toner; the thickness of the color matte finish paint layer is 20 μm.
Step 4: and (3) hot pressing the density board after the electron beam curing in the step (3) by using a ten-thousand-ton hot press.
Example 3
A preparation method of a color super matte decorative plate with three-dimensional lines comprises the following steps:
step 1: positive roller coating seal primer coating on the upper surface of the density board, forming a seal primer layer after UV curing, wherein the UV curing energy is 260mj/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the Sanding the closed primer layer; the thickness of the density board is 10mm; the thickness of the sealing primer layer is 10 μm; forming a closed primer layer, and sanding the closed primer layer; the sealing primer layer coating comprises the following components in percentage by mass: 20% of difunctional polyester acrylic resin, 25% of difunctional modified epoxy acrylic resin, 30% of reactive monomer, 23% of talcum powder and 2% of auxiliary agent.
Step 2: coating the upper surface of the closed primer layer with a color matte coating in a forward and reverse way, irradiating the upper surface with an excimer lamp to form a matte micro-surface, and curing the matte micro-surface by an electron beam curing device to form a color matte paint layer; the color matte coating comprises the following components in percentage by mass: 20% of difunctional polyurethane acrylic resin, 14% of trifunctional polyurethane acrylic resin, 10% of hexafunctional polyurethane acrylic resin, 9% of active monomer TPGDA, 3% of active monomer IBOMA, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner (titanium pigment); the thickness of the color matte finish paint layer is 25 μm.
Step 3: carrying out hot pressing on the density board after the electron beam curing in the step 2 by using a ten-thousand-ton hot press; the hot pressing temperature is 140 ℃, and the hot pressing pressure is 6KGF/CM 2 The hot pressing time is 30s, and the depth of pressed lines is 5mm.
Comparative example 1
The preparation method of the color super matte decorative plate with three-dimensional lines is different from example 3 in that the color matte paint in comparative example 1 comprises the following components in percentage by mass: 30% of difunctional polyurethane acrylic resin, 10% of hexafunctional polyurethane acrylic resin, 11% of active monomer TPGDA, 5% of active monomer IBOMA, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner (titanium pigment). The remaining preparation steps were the same as in example 3.
Comparative example 2
The preparation method of the color super matte decorative plate with the three-dimensional lines is different from the embodiment 3 in that the color matte paint in the comparative example 2 comprises the following components in percentage by mass: 30% of trifunctional polyurethane acrylic resin, 10% of hexafunctional polyurethane acrylic resin, 11% of active monomer TPGDA, 5% of active monomer IBOMA, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner (titanium pigment). The remaining preparation steps were the same as in example 3.
Comparative example 3
The preparation method of the color super matte decorative plate with the three-dimensional lines is different from the embodiment 3 in that the color matte paint in the comparative example 3 comprises the following components in percentage by mass: 20% of difunctional polyurethane acrylic resin, 10% of trifunctional polyurethane acrylic resin, 10% of hexafunctional polyurethane acrylic resin, 11% of active monomer TPGDA, 5% of active monomer IBOMA, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner (titanium pigment). The remaining preparation steps were the same as in example 3.
Comparative example 4
The preparation method of the color super matte decorative plate with three-dimensional lines is different from example 3 in that the color matte paint in comparative example 4 comprises the following components in percentage by mass: 40% of hexafunctional polyurethane acrylic resin, 11% of active monomer TPGDA, 5% of active monomer IBOMA, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner (titanium pigment). The remaining preparation steps were the same as in example 3.
Detecting data
1. The pressing temperature, pressure and depth of the pressed grain of the steel plate in the preparation method of the color super matte decorative board with the three-dimensional grain of example 2 were adjusted to obtain a corresponding matte decorative board with the three-dimensional grain, and the performance of the matte decorative board was tested respectively, and the test results are shown in table 1.
Table 1 color super matte decorative panel Performance test
2. The decorative sheets prepared in example 3 and comparative examples 1 to 4 were tested, and the results are shown in table 2.
TABLE 2
As can be seen from Table 2, the decorative sheet prepared in example 3 of the present invention has extremely low gloss (0-3 ℃ C.), high stretchability, and suitable coating hardness (. Gtoreq.H).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. The color matte coating for electron beam curing is characterized by comprising the following components in percentage by mass: 20-25% of difunctional polyurethane acrylic resin, 10-15% of trifunctional polyurethane acrylic resin, 10-20% of hexafunctional polyurethane acrylic resin, 10-15% of active monomer, 1-3% of wax powder, 5-10% of alumina, 3-4% of auxiliary agent and 20-35% of pigment toner; wherein the active monomers are tripropylene glycol diacrylate and isobornyl methacrylate.
2. The color matt coating according to claim 1, wherein the auxiliary agent is one or more selected from the group consisting of: byk163, byk, 110, byk, 1790, byk, 333, tego920, and tego410.
3. The color matt coating according to claim 1, wherein the composition of the color matt coating comprises, in mass percent: 20% of difunctional polyurethane acrylic resin, 15% of trifunctional polyurethane acrylic resin, 15% of hexafunctional polyurethane acrylic resin, 10% of reactive monomer, 2% of wax powder, 10% of alumina, 3% of auxiliary agent and 25% of pigment toner.
4. The color matt coating according to claim 1, wherein the composition of the color matt coating comprises, in mass percent: 20% of difunctional polyurethane acrylic resin, 14% of trifunctional polyurethane acrylic resin, 10% of hexafunctional polyurethane acrylic resin, 9% of reactive monomer tripropylene glycol diacrylate, 3% of reactive monomer isobornyl methacrylate, 1% of wax powder, 5% of alumina, 3% of auxiliary agent and 35% of pigment toner.
5. Use of a colour matt coating according to any of claims 1-4 for the preparation of colour matt decorative boards with three-dimensional textures.
6. The use according to claim 5, wherein the base sheet of the three-dimensional textured color matte decorative sheet is one or more selected from the group consisting of: density board, chipboard, reed board and foaming board.
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CN110358438A (en) * 2019-07-12 2019-10-22 江苏宏泰高分子材料有限公司 One kind having imitative anodic oxidation effect colored paint UV dull finishing coat and its application

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EP2598561A1 (en) * 2010-07-29 2013-06-05 Evonik Röhm GmbH Process for scratch- and abrasion-resistant coating and physical matting of plastics substrates, more particularly polymethyl methacrylate, with nanocomposite coating material
CN105899362B (en) * 2014-01-10 2018-06-19 大日本印刷株式会社 Cosmetic sheet and decorative panel and their manufacturing method
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CN101210144A (en) * 2006-12-30 2008-07-02 比亚迪股份有限公司 Ultraviolet light solidifying matt coating and preparation method thereof
CN110358438A (en) * 2019-07-12 2019-10-22 江苏宏泰高分子材料有限公司 One kind having imitative anodic oxidation effect colored paint UV dull finishing coat and its application

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