JPS5822328B2 - Decorative board manufacturing method - Google Patents

Description

[Detailed description of the invention] The present invention relates to a decorative material having an uneven pattern.

Various types of decorative materials have been known to have uneven patterns, but the most common method for obtaining such decorative materials is to mechanically emboss them to create an uneven pattern. This is a method of giving.

Among the mechanical embossing methods, when using a decorative sheet, there are two methods: one is to apply embossing after pasting the base material and the decorative sheet, and the other is to attach a decorative sheet that has been embossed in advance to the base material. It is broadly divided into two types:

The latter method has the disadvantage that the embossed grain returns due to the press pressure during lamination and the moisture or oil content of the adhesive used, and the former method also causes the embossed grain to return after embossing. There was a case.

The present invention was completed as a result of various researches aimed at solving these drawbacks.

That is, the present invention provides a method for producing a decorative board by pasting decorative paper to a base material, in which the decorative paper has a desired pattern on the surface of the base paper for decorative paper and a grain-reinforcing resin layer on the back surface. The production of a decorative board, which is characterized in that the decorative paper is created, embossed before or after pasting the decorative paper to a substrate, and a surface resin applied after the embossing and pasting to the substrate are completed. It is about the method.

In the present invention, a transparent resin layer may be applied on the desired pattern at the stage of creating the decorative paper.

The grain reinforcing resin layer is for preventing the embossed grain from returning after embossing.

As the resin for the grain reinforcing resin layer, coating resins such as urethane resins, vinyl resins, and acrylic resins can be used, and coating can be performed by known methods such as gravure coating and roll coating.

When pigments are added to the above resin, a decorative paper with extremely high concealment properties can be obtained.

The desired pattern to be applied to the surface may be any arbitrary pattern such as wood grain pattern, geometric pattern, abstract pattern, texture pattern, etc., and can be applied by known methods such as gravure printing, offset printing, screen printing, transfer printing, and drawing board printing. can be applied.

A transparent resin layer may or may not be provided on the desired pattern.

When applying a transparent resin layer, use urethane resin,
Curable resins such as polyester resins are preferred, and the coating amount is appropriately determined depending on the required quality and performance level, but 5 g/rr? (Dry) to 10f/rr? It is common to apply a (dry) amount.

Any paper that is normally used as a base paper for decorative paper may be used.
If it is necessary to increase the interpaper strength or wet strength of decorative paper, an anchor coat may be applied before applying the desired pattern.

In the case of resin-mixed paper, an anchor coat is not necessary because it has a certain degree of inter-paper strength even without an anchor coat, but the inter-paper strength will further increase if an anchor coat is applied.

The decorative paper thus obtained is embossed before or after being attached to the substrate.

The embossing may be carried out by a conventional method using an embossing plate, an embossing roll, or the like.

The decorative paper may be attached to the substrate by a commonly used method using an adhesive.

As the substrate, when embossing is performed after pasting decorative paper, a substrate capable of embossing processing such as plywood, particle board, hardboard, plastic board, cardboard board, calcium silicate board, gypsum board, etc. can be used. When embossed decorative paper is to be applied, in addition to the above-mentioned substrate, a material that is difficult to emboss may be used, such as a metal plate or a cement board.

After finishing the embossing process and adhesion to the substrate, a surface resin is further applied.

This surface resin may be colored and transparent or colorless and transparent.

This surface resin is preferably a curable resin such as a urethane resin or a polyester resin.

The coating amount may be appropriately determined depending on the required quality and performance level (coating can be done by conventionally known methods).

In the decorative board having an uneven pattern of the present invention, since the grain reinforcing resin layer is present, the embossing does not return to its original form, and therefore the decorative board has a sharp uneven pattern.

Furthermore, since the present invention does not use a vinyl chloride sheet or the like as the base paper, it has advantages other than those mentioned above.

In other words, when a PVC sheet is used, it has the disadvantages of forming fog in winter in cold regions, generating toxic gas in the event of a fire, and giving a cold appearance to the design, but the decorative board of the present invention All such drawbacks are eliminated.

The decorative board of the present invention can be used in a wide range of applications, including furniture materials, ceiling materials, interior decoration materials, and housing equipment.

Claims (1)

[Claims] 1. A method for manufacturing a decorative board by pasting decorative paper onto a substrate, wherein the decorative paper base paper has a desired pattern on the surface and a grain-reinforcing resin layer on the back surface. and applying the decorative paper to the substrate, the preamble is embossed after pasting, and a surface resin is applied after the embossing and pasting to the substrate are completed. Production method. 2. The method according to claim 1, wherein a transparent resin layer is further applied on the desired pattern in the step of creating the decorative paper.