JPH051148B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to a method for producing a decorative material with excellent abrasion resistance and a natural feel to the touch. BACKGROUND ART Conventionally, the following methods have been used to form a convex pattern with excellent wear resistance on the surface of a decorative material, and each method has its own drawbacks. (a) A method of printing using a deep plate using plastisol or organosol of polyvinyl chloride resin. This method has poor drying properties and is unsatisfactory in terms of texture and matte feel. (b) Method using water-based foam ink. In this method, the resulting convex pattern has insufficient pressure resistance and scratch resistance. (c) A method of adding a developing agent to the composition of (a) above. Although the above drawback (a) is somewhat resolved, the scratch resistance becomes worse. (d) Mechanical embossing method. Although it can be applied to thermoplastic substrates, there are restrictions when applying it to paper, etc., and it is difficult to match the unevenness and printing. Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks of the prior art, and allows normal printing to be used without major changes.
It is possible to match the normal pattern, and
The purpose of the present invention is to produce a decorative material in which the convex pattern of the obtained decorative material is hard to collapse and has excellent abrasion resistance. Means for Solving the Problems In the method for producing a decorative material of the present invention, a normal pattern is printed on the surface of a base material, and then diatomaceous earth with a particle size of 10 to 50μ is added to 100 to 100 parts by weight of ink. The method is characterized in that a convex pattern is printed using an ink containing 30 parts by weight. First, a normal pattern 2 is printed and formed on the surface of a base material 1. The substrate 1 is typically paper such as tissue paper, bleached kraft paper, titanium paper, linter paper, paperboard, or gypsum board paper, among which tissue paper is typical. Alternatively, as materials other than paper, polyene film,
Plastics such as polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, polyethylene terephthalate film, polycarbonate film, nylon film, polystyrene film, ethylene vinyl acetate copolymer film, ethylene vinyl alcohol copolymer film, ionomer, etc. Wood base materials such as film, wood, plywood, and particle board; gypsum base materials such as gypsum board and gypsum slag board; fiber cement board such as pulp cement board, asbestos cement board, and wood chip cement board;
GRC and concrete Metal foils or sheets of iron, aluminum, copper, etc., and composites of each of the above base materials. Note that, before forming a composite, a decorative material may be manufactured using the first base material and then adhered to the second base material. To print a conventional pattern, a conventional ink composition is used, specifically a vehicle mixed with a pigment or dye colorant, a plasticizer, a stabilizer, other additives, a solvent or a diluent. Use what is. Examples of the vehicle include cellulose derivatives such as ethyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate propionate, and cellulose acetate, styrene resins and styrene copolymer resins such as polystyrene, polyα-methylstyrene, polymethyl methacrylate, polyethyl methacrylate, Single or copolymer resins of acrylic or methacrylic resins such as polyethyl acrylate and polybutyl acrylate, rosin, rosin-modified maleic acid resin, rosin-modified phenolic resin, rosin ester resin such as polymerized rosin, polyvinyl acetate resin, coumaron One or more of resins, vinyl toluene resins, vinyl chloride resins, polyester resins, polyurethane resins, butyral resins, etc. can be selected and used, and colorants for pigments or dyes, stabilizers, plasticizers, dispersants, Other additives, solvents, or diluents are kneaded and used as an ink. To print and form ordinary patterns using these ink compositions, known printing methods such as gravure printing, offset gravure printing, silk screen printing, offset printing, electrostatic printing, and jet printing can be used. The method may be selected by considering the material, properties, form, etc. of the base material. For example,
When thin paper (basis weight 23g/m ² - 30g/m ² ) is used as the base material, a rotary printing press is used because it is usually supplied as a very long rolled paper, and the printing method is gravure printing. By using this method, even if there is some roughness on the surface of the paper, it is possible to overcome it and produce beautiful printing, which is preferable. Note that the "normal printed pattern" may be provided directly on the base material so that the base material can be seen through, but it is usually a solid layer (uniform layer over the entire surface) that is colored for concealment.
Alternatively, it may be provided as a pattern superimposed on a solid layer. The types of patterns used are abstract patterns, often textile patterns. Alternatively, a pattern such as a painting or an etching print may be used. Next, on the base material 1 on which the normal pattern 2 has been printed, a convex pattern 3 is printed using ink containing diatomaceous earth. The ink composition used in this process is basically the same as that used for printing ordinary patterns,
However, it contains diatomaceous earth. As the diatomaceous earth, it is preferable to use a high-temperature calcined product using particularly high-grade marine diatomaceous earth, which is usually used as a filter aid. An example of commercially available diatomaceous earth is shown below.

[Table] The particle size is preferably 10 to 50μ, and when it is 10μ or more, wear resistance improves. In addition, although it is not impossible to use materials exceeding 50μ, they are difficult to handle under normal printing conditions as they may clog the plate.
I can't say it's practical. The above diatomaceous earth is 10 to 10 parts by weight of ink.
It is preferable to use the mixture in a proportion of 30 parts by weight, preferably 10 to 20 parts by weight. Furthermore, SiO ₂ ,
Hollow particles made of oxides such as Al ₂ O ₃ , CaO, MgO or composite oxides thereof, glass, or carbon may be added. The printing method for providing the convex pattern 3 is as follows:
The above-mentioned printing method for forming the normal pattern 2 can be applied, but because the diameter of the inorganic hollow particles in the ink used is large, it is difficult to use a gravure plate with a relatively deep plate depth of 90μ or more or a hole with a diameter of 90μ or more. It is best to use a printing method using a large silk screen plate. By specifically selecting such a printing method, it is possible to obtain a three-dimensional effect, a rough texture, or, when applied to a woven pattern, the appearance of a woven material. In order to improve the printing speed, especially the drying speed, it is better to use an oil-based vehicle as a vehicle, but water-based ones can also be used, and plastisols and organosols of polyvinyl chloride resins can be used, or especially hardening type vehicles can be used. Resins may also be used as vehicles. The method of the present invention is basically as described above, but a step of forming a transparent synthetic resin layer 4 on the surface may be added. The transparent synthetic resin paint for forming layer 4 usually uses a synthetic resin such as aminoalkyd, polyurethane, or polyester as a vehicle, but is not limited thereto. The thickness of the transparent synthetic resin layer 4 is set to a level that does not exceed the thickness of the convex pattern 3 by much. Since the paint is sucked into the parts of the convex pattern 3 to which the transparent synthetic resin paint is applied, the feel and matte feel that the convex pattern 3 originally has is not lost. To apply the above-mentioned transparent synthetic resin paint, known coating methods such as gravure coating, roll coating, air knife coating, kiss coating, spray coating, continuous coating, dip coating, spinner coating, wheeler coating, brush coating,
It can be applied by solid coating using silk screen, flow coating, etc., and then dried. Effects and Effects According to the present invention, the diatomaceous earth in the convex pattern is resistant to abrasion, and the convex pattern filled with shirasu balloons is resistant to crushing, and furthermore, there is an advantage that a normal printing process can be used. . In addition, the convex pattern filled with diatomaceous earth provides a rough texture. Therefore, the decorative materials mentioned above can be used as ceiling materials, wall materials,
It can be widely used for furniture, miscellaneous goods, wallpaper, flooring, audio equipment cabinet surface materials, etc., and is especially suitable for ceiling materials,
It is suitable for printed plywood and its applied products. Note that if diatomaceous earth with a diameter of 10 μm or more is used, the resulting unevenness is large, so even if a protective layer is provided, the fine unevenness will not be filled. Furthermore, since particles with a size of 10μ or more are used, "scene effects" are less likely to occur, and scratches and dents are less noticeable, so there is no need to take special care during transportation or processing. Example 1 First, on thin paper with a basis weight of 23 g/m ² , an abstract pattern base color was applied to a printing depth of 80 μm using gravure ink using a nitrocellulose resin and an alkyd resin as a vehicle.
After gravure printing was performed using a solid plate, an abstract pattern was printed by gravure printing using the same ink. Further, on the paper printed with the abstract pattern, raised printing was performed using a direct corrosion gravure plate with a plate depth of 90 μm using ink having the composition shown below. Acrylic polyol (manufactured by Takeda Pharmaceutical Company)
13 parts by weight Isocyanate (manufactured by Takeda Pharmaceutical Co., Ltd.) 5 〃 Titanium oxide 37 〃 Diatomaceous earth Radiolite #2000 manufactured by Showa Chemical Industry Co., Ltd.
Particle size: 1 to 60 μm Average: 13 μm Ethyl acetate 19.5 Toluene 15 The obtained decorative material was adhered to a 27 mm thick plywood board using a polyvinyl acetate resin emulsion type adhesive to obtain a printed plywood board. This printed plywood had a white convex pattern, and even when the convex pattern was scratched with a fingernail, it did not peel off. Example 2 Before attaching the decorative material obtained in Example 1 to plywood, the surface was coated using a paint containing polyester polyol and an equivalent amount of isocyanate (solid content 35%) and a gravure plate with a plate depth of 80 μm. A printed plywood was obtained in the same manner as in Example 1 except for the following. This printed plywood has a reinforced surface and
It was more difficult to get dirty.

[Brief explanation of the drawing]

FIGS. 1 and 2 are cross-sectional views showing the steps of the present invention, and FIG. 3 is a cross-sectional view showing an example of a decorative material obtained by the method of the present invention. 1... Base material, 2... Normal pattern, 3... Convex pattern, 4... Transparent synthetic resin layer.

Claims (1)

[Claims] 1 A normal pattern is printed on the surface of a base material, and then a convex pattern is printed using an ink containing 10 to 30 parts by weight of diatomaceous earth with a particle size of 10 to 50 μ per 100 parts by weight of the ink. Characteristic manufacturing method for decorative materials.