JPS6024000B2 - Method for manufacturing decorative board with apertures added - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a decorative board provided with apertures.

Conventionally, it has been known to produce decorative laminates with iris.Generally, a decorative pattern is printed on a base paper, a top coat is applied if necessary, and then an embossing process is applied to produce a decorative paper with iris. It is manufactured by pasting the decorative paper, which has been made and then given a squeeze, to a base material using an adhesive.

However, in such conventional methods, there are times when the decorative paper with the diaphragm is attached to the base material, when the decorative laminate with the diaphragm is laminated, or when the product is subjected to impact. It has the disadvantage of being easily squeezed and crushed, resulting in variations in the stability of the product.Also, when using a strong base paper to increase the strength of the squeeze, it may crack when applying the embossing process. There are some easy drawbacks.

In view of the shortcomings of the conventional method, the present inventor has conducted various studies to improve the various shortcomings, and as a result, the present inventor has found that the strength of the decorative paper is increased after applying an embossing process to give a squeeze. Improves its pressure resistance, impact resistance, etc.
They succeeded in manufacturing a decorative board with stable aperture.

That is, in the present invention, a decorative pattern is printed on a base paper, a top coat is applied as necessary, and then an embossing process is applied to create a decorative paper with a drawstring added, and then the decorative paper with a drawer is applied with an adhesive. When manufacturing a decorative board with a shark pattern applied to it by bonding it to a base material, the back side of the decorative paper that has been applied with a drawstring is coated with an ink or paint containing an extender pigment and a resin, and then it is bonded to the base material. This is a method for manufacturing a decorative board provided with apertures, which is characterized by the following. Next, embodiments of the method for manufacturing a decorative board provided with apertures according to the present invention will be specifically described with reference to the drawings.

First, as shown in FIG. 1, a decorative pattern 2 is printed on a base paper 1 for decorative paper by a conventional printing method such as a gravure method, a letterpress method, a flexographic method, or a silk screen method, or by a conventional hand or brush painting method. Then, as shown in FIG. 2, a surface protective layer 3 is formed as necessary by a conventional coating method such as gravure coating, roll coating, /di coating, air knife coating, flow coating, etc., and then as shown in FIG. 3. As shown in Fig. 4, a pattern is formed by applying a normal embossing process, and then a coating 4 of ink or paint containing an extender pigment and a resin is applied by roll coating, bar coating, air knife coating, flow coating, etc. as shown in Fig. 4. A pattern is coated on the back side of the base paper 1 by a normal coating method such as screen coating so as not to be crushed, and then the back side of the decorative paper thus obtained is adhered to the base material 5 via an adhesive 6. Decorative board 7
get.

In the present invention, the ink or paint used for printing the decorative pattern may be a known ink or paint vehicle, for example, a coloring agent such as a dye or pigment may be added to the ink or paint vehicle, and the ink or paint may further include, for example, a plasticizer, stabilizer, etc. wax grease,
Ink or coating compositions, etc., prepared by adding optionally known additives such as desiccants, auxiliary desiccants, curing agents, thickeners, dispersants, fillers, etc., and thoroughly kneading them with solvents, diluents, etc. can be used.

In the above ink or paint, the vehicle may be a known one, such as various oils and fats such as linseed oil, soybean oil, synthetic drying oil, natural resins such as rosin, copal dammar, hardened rosin, rosin ester, or polymerized rosin. and processed resins, gin-modified phenolic resins, 100% phenolic resins, maleic acid resins, alkyd resins, petroleum resins, vinyl resins, acrylic resins, polyamide resins, epoxy resins, amino alkyd resins, etc. Synthetic resins, cellulose derivatives such as nitrocellulose and ethylcellulose, rubber derivatives such as chlorinated rubber and cyclized rubber, and other materials such as pig, casein, dextrin, and zein can be used.

In addition, as the ink or paint applied to the back side of the base paper for cosmetics used in the present invention, resins such as urethane, which take into consideration conditions such as adhesion, water resistance, and resistance to acid and alkali corrosion of adhesives and base materials, are used. A resin such as resin, epoxy resin, or acrylic resin is used as a constituent material of the vehicle, and an extender pigment such as calcium carbonate is added to the vehicle from the equivalent amount of the resin to give the vehicle properties as a filler and properties for improving adhesiveness. A composition obtained by adding twice the equivalent (weight), optionally adding other plasticizers, stabilizers, curing agents, etc., and sufficiently mixing with a solvent, diluent, etc. can be applied.

Other extender pigments include precipitated barium sulfate, kaolin, barite powder, barium carbonate, gypsum, asbestos, clay, silica powder, and turk. The purpose of using extender pigments is {1- as a filler to reduce costs; 2) to improve adhesion, increase adhesive hardness and heat resistance, and improve the strength of crests.

Furthermore, in order to improve the hiding power of the decorative board, it is also effective to partially replace it with a coloring agent such as titanium oxide.

The amount of ink or paint applied varies depending on the shape and depth of the aperture, but is approximately 30 to 60 g/(solid content). Coating methods include roll coating, bar coating, air knife coating, flow coating, and screen coating; If you apply it concentratedly to the concave part of the aperture (on the back side), you can get a big effect with a small amount.

In the present invention, the adhesive for bonding the decorative paper and the base material may be a known adhesive such as phenolic resin,
Furan resin, urea resin, melamine resin, polyester resin, polyurethane resin, epoxy resin, silicone resin, other thermosetting resins, polyvinyl acetate, polyvinyl alcohol, polyvinyl chloride, polyvinyl butyfur, Poly(meth)acrylic resins, nitrocellulose, polyamides, other thermoplastic resins, butadiene-acrylonitrile rubber, neoprene, other rubber derivatives, others, glue, zein, natural resins, sodium silicate, casein, starch, dextrin, An adhesive containing one or more types of gum arabic as a main component can be used. The adhesive may be a solution type, an emulsion type, a powder type, a film type, etc., and may be a room temperature solidification type, a heating solidification type, a solvent volatilization type, or a solvent volatilization type.
It may be of any type such as melt-solidification type.

As the base material used for the decorative laminate of the present invention, base materials commonly used for decorative laminates, such as wood, plastic, ceramics, metal, fiberboard, and paperboard, can be used.

In the present invention, a method for forming a surface protective layer on a decorative board includes, for example, a transparent resin composition made of a resin as a main component, added with necessary additives, etc., and sufficiently kneaded with a solvent, etc. For example, coating with a conventional coating method such as roll coating, gravure coating, hard coating, round knife coating, flow coating, dip coating, or spray coating, or coating a transparent resin film or sheet with an adhesive, for example. Examples include a method of forming layers by laminating them using a normal lamination method such as a lamination method or a hot melt lamination method.

In the above, the resins are known, such as natural resins and their processed resins, alkyd resins, butylated aminoaldehyde resins, phenol resins, phthalate resins, aminoplast resins, polyamide resins, vinyl resins, and acrylic resins. synthetic resins such as resins, epoxy resins, urethane resins, vinyl phthyral, resins, nitrocellulose, acetyl cellulose, acetyl butyro Z
Cellulose conductors, rubber derivatives, etc. can be used, and as resin films or sheet-like materials, known ones such as polyethylene, polypropylene, polyester, polyvinylidene chloride, polystyrene, polycarbonate, etc. can be used. A film or sheet-like material obtained by molding a resin such as polyvinyl alcohol or polyamide according to a conventional method can be used.

In addition, in the present invention, since the above-mentioned resin constitutes the surface protective layer of the printed pattern, resins with excellent durability such as weather resistance, abrasion resistance, heat resistance, and surface strength are used. It is desirable to use it.

The decorative plywood obtained by the above method of the present invention has various uses, and can be applied, for example, to wall covering materials, ceiling materials, floor materials, furniture, cabinets, etc.

The method for manufacturing a decorative board provided with apertures according to the present invention described above has the following effects.

'1} Creates a crested decorative board with strong aperture. (i)
Can be bonded to stable substrates. Not only can it be pasted with a laminator, but it can also be pasted with a press. (ii) Conventional decorative laminates with diaphragms require certain conditions to be laminated due to their own weight, but this one can be handled almost in the same way as ordinary decorative laminates without diaphragms.

(iii) Even after becoming a product, it has excellent impact resistance, scratch resistance, etc.

■ By adding colored pigments to the resin applied to the back side, the hiding properties of decorative paper can be improved.

By doing so, the appearance of the decorative board will be less affected by the color tone of the substrate. (3) When attaching decorative paper to a substrate, the adhesive used will vary depending on the type of decorative paper, but by applying resin to the back side, you will be able to choose the adhesive you want, which may lead to lower adhesive costs. Conceivable.

'4} Depending on the resin applied to the back side, it is possible that the resin will penetrate the decorative paper and improve the strength between the decorative paper layers.

'5} Up until now, from the point of view of drawing strength, when making deep drawings, hard sheets such as impregnated paper or synthetic resin films such as PVC or synthetic paper were selected as the base paper, but in the case of hard sheets, It was not possible to form stable sharks due to problems such as cracks. According to the present invention, even a soft sheet can be deeply drawn, increasing the selectivity of base paper, which may lead to cost reduction.

Next, an example of implementation of the present invention will be shown.

Example 3 A ground coat and a decorative pattern were printed on 0 g tissue paper by gravure printing using an ink consisting of a nitrocellulose vehicle.

Next, a paint consisting of a thermosetting urethane vehicle is coated on the entire surface at log/(solid content) using a roll coating method.
to protect the surface. Next, this was given a roughness difference of 0.12 using a normal paper embossing.

Next, on the back of this thing, add 1 part by weight of magnesium carbonate,
A paint consisting of 1 part by weight of titanium oxide, 1 part of urethane resin, and 1 part of solvent was applied by roll coating to 50 g/solid content.
It was applied evenly so that The thus-obtained decorative paper provided with a drawstring was bonded to a 4-bar thick plywood coated with a vinyl acetate adhesive at a force of 150 g' to produce a decorative board provided with a drawer. In this case, magnesium carbonate is an extender pigment, and titanium oxide is used to improve hiding properties.

The thus manufactured decorative board had strong drawing strength and could withstand normal press bonding conditions. In addition to the above-mentioned examples, (1) Immediately before bonding the decorative board with sharks to the base material coated with adhesive, an ink containing extender pigment and resin is applied to the back side of the decorative paper using a roll coating method. Alternatively, a decorative board can be manufactured by coating the materials with paint and then bonding them together.

■ With and without top coat for surface protection.
After pasting the decorative paper with the crest on the Motomura with adhesive, apply 40 g of paint consisting of a thermosetting urethane vehicle using a roll coating method using a sponge roll, etc.
Solid content) can be applied to obtain a decorative board.

[Brief explanation of drawings]

The drawings show the manufacturing process of the decorative board with the emblem of the present invention. Figure 1 is a cross-sectional view showing the decorative pattern printed on base paper for decorative paper, and Figure 2 is the same as that shown in Figure 1. 3 is a sectional view showing the state in which a surface protective layer has been applied to the surface protection layer, FIG. 3 is a sectional view showing the state in which the surface protection layer in FIG.
Figure 5 is a cross-sectional view showing the state in which the thing in the figure is coated with ink or paint containing an extender pigment and resin, and Figure 5 is
It is a sectional view showing a state in which the thing shown in the figure is adhered to the base plate. 1. Base paper for decorative paper, 2. Decorative pattern, 3. Surface protective layer, 4. Ink or paint coating, 5.
Base material, 6... Adhesive layer, 7... Decorative board. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1 Print a decorative pattern on the base paper, apply a top coat if necessary, then emboss it to create a decorative paper with a squeeze, and then attach the decorative paper with a squeeze to the base material with adhesive. When manufacturing decorative boards with apertures,
A method for producing a decorative board with a draw pattern, which comprises coating the back side of the decorative paper with a draw pattern with an ink or paint containing an extender pigment and a resin, and then bonding the paper to a base material.