JPS58148758A - Manufacture of decorative board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a method for manufacturing decorative laminates.

Decorative board is a plywood board with a pattern, for example a wood grain pattern, formed three-dimensionally on the surface, and is used as an interior/exterior material. Such a decorative board was manufactured by the following method. That is, they were manufactured by forming a pattern similar to a wood grain pattern on the surface of plywood using foaming ink. However, in this method, the pattern is made three-dimensional by foaming, so the pattern becomes hollow and its strength is reduced, and therefore a decorative board with sufficient surface strength cannot be manufactured. The depth of the embossment (the depth of the embossment, the depth of the embossment, and the depth of the embossment) was at most about 300 to 500μ, and it was not possible to create a large embossment.

The inventor did some research to see if it was possible to easily form a human-like pattern with the strength and depth of the embossment, and as a result, he applied resin to the surface of the plywood using a rotary screen, etc., and with this resin. This invention was achieved by discovering that forming a pattern is extremely effective.

That is, the present invention is a method for manufacturing a decorative board in which a three-dimensional pattern is formed on the surface of plywood, and is characterized in that the three-dimensional pattern is created by applying resin. Finally, I will explain this invention in detail.

Examples of the plywood used in the present invention include plywood and sawn board, but non-woody veneers such as resin paper may also be used.

The resin can be applied to the surface of the plywood using a rotary screen such as Ail-ki, or by using a pattern paper. When forming a woodgrain pattern as a pattern, a pigment is appropriately cooled in the resin to impart a woodgrain color (summer wood color).As the pigment, Cd5-Cd5c (red) is used.

Cr2O3 (green), PdCrO4 (yellow), etc. are used.

In this case, the resin used is not particularly limited. For example, a vinyl chloride resin (pVC) sol is used.

In addition, before applying the resin in this way,
Usually, a single layer of primer is formed on the surface of the base plate. As a brimer, urethane thread and plain vinyl thread are used.

Although any known acrylic material may be used, it is desirable that it has good adhesion to both the resin and plywood. When expressing a wood grain pattern by applying resin,
When pigments that can be added to this primer to bring out the color of the spring wood (the color of the parts other than the wood grain), such as Fe2O3 (brown) and PbCr04 (yellow), are added to the primer, the entire surface of the plywood or the spring wood is added. Because it becomes a partial color, the wood grain formed on top of it (due to the molding resin) becomes clearer.

The resin piled up as described above is usually heat-treated and hardened. However, in order to prevent deactivation of the embossed resin and improve surface strength, generally after the resin embossment process is applied to the plywood surface, a top coat depending on the number of resins is further applied. In order to prevent the top coat from deforming the embossed resin, for example, if the embossed resin is made of PVC sol, a deformation prevention process such as semi-gelling is performed. ] 2d It is preferable to perform the sheet coating using a flow coater.Although it may be performed using a roll coater, the coating may not be applied to the valleys between the molded resins, which may cause the molded resin to be easily deformed. The heat treatment of the plated resin is carried out by vacuum heat pressing or by placing cushion paper on the surface of the plywood and flat pressing it.

Since the present invention forms a three-dimensional pattern as described above, it is possible to easily form a pattern with high strength and deep embossing. In this case, the depth of the embossing can be easily adjusted by adjusting the height of the resin. Furthermore, since pattern formation and embossing formation can be performed simultaneously by applying resin, the process can be shortened. Furthermore, we applied a layer of resin to the area where the primer was formed, creating a layered shape (transparent,
(It doesn't matter whether it's opaque or not), you can get a different aesthetic than flat printing.

Next, examples will be described.

〔Example〕

As shown in FIG. 1, a layer 2 of primer containing spring material color pigment is formed on the surface of the base plate 1, and as shown in FIG.
Using a rotary screen, the pvc sol containing summer wood color pigment was plated to form part 3. Afterwards, this plated portion 3 was semi-gelled by heat treatment. Then, the third
As shown in the figure, a PVC top coat sol was applied to the entire surface of the base plate 1 to form a top coat sol layer 4. Then, a cushion paper was placed on top of it, and heat and pressure treatment (100 to 140°C) was carried out using a flat press. As a result, PvC on the surface
A hardened thin film is formed, and through this thin film, the wood grain pattern expressed by the hardened embossment stands out against the background of the spring wood color created by a single layer of hardened brimer, giving it a natural wood texture that looks three-dimensional (5 ) A decorative board was obtained. .

[Brief explanation of drawings]

1 to 3 are explanatory drawings for manufacturing an embodiment of the present invention. 1... Base plate 2... One layer of primer 3... Part 4... Top coat sol layer Patent applicant Matsushita Electric Works Co., Ltd. Agent Patent attorney Takehiko Matsumoto (6)

Claims (1)

[Claims] (1) A method for manufacturing a decorative board in which a three-dimensional pattern is formed on the surface of a base plate, characterized in that the three-dimensional pattern is created by applying resin.