JPS59215859A - Surface decorative structure of woody blank - 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 The present invention relates to a surface decorative structure for wood materials such as lauan plywood, and in particular, wood boards that are low in value for use as furniture materials due to their properties are treated with a polymeric coloring method. This relates to the technical idea of creating a decorative board that has the same aesthetic appearance as a veneered precious wood.

Taking lauan plywood as an example, unlike the general veneer manufacturing process, the veneer is obtained by punching the side trunk of a cylindrical log using a rotary method. The surface becomes uniform with some roughness.

For this reason, with the coloring method used for general veneers, the unevenness of the paint absorbed onto the surface of the material results in extreme shading of the painted color, making it impossible to increase the product value. For this reason, conventionally, in order to process lauan plywood into decorative board, printing paper or veneer was attached so that the surface of the lauan plywood was not completely visible. Currently, it has only value as plywood.

Here, the present invention proposes a more natural and inexpensive surface decorative structure of a wood material by utilizing the natural conduit portion or heathered portion that lauan plywood has on its surface. By selecting and processing the wood, it is possible to create a color tone that reproduces the skin of each ridge, such as natural sax and rosewood.

That is, the first invention of the surface decorative structure of a wood material according to the present invention is characterized in that a thin paper layer having a desired transparent coloring is formed on the bottom surface of the wood material which has been given a base coloring of a desired color tone. be.

Furthermore, the second invention is to form a thin paper layer with the desired transparent coloring on the surface of the wood material which has been subjected to the base coloring of the desired color, and to form a colorless or colored transparent BA paint layer on the upper surface thereof. It is characterized by:

Embodiments of the present invention will be described in detail below along with the drawings.

<Example 1> This example corresponds to the first invention, and is an example in which the finish imitates cherry wood and is manufactured as shown in FIG. First, in Fig. 1, symbol A is a wood material, for example, lauan plywood is used, and symbol B is a thin paper laminated on this lauan plywood. Each member of the manufacturing apparatus for obtaining a decorative surface structure of the wood material A of the present invention will be described. Reference numeral 1 is a coloring device, 2 is a finger pressure device, 3 is a cleaning device, 4 is a feed roller,
5 is a gluing device.

6 is a stacking device, and 7 is a hot air stove. First, lauan plywood, which is the wood material A, is fed between the above-mentioned devices and subjected to a first treatment. That is, as shown in FIG. 1(A), the first step is to apply a colored stain to the wood material A, and in the vat 11 of the coloring device 1, for example, the following coloring ratio is applied. Supply Stain 10. Transparent pigmented stain, 30 parts yellow, 10 parts lacquer solvent.
It is a colored stain mixed with 0 parts. Coloring device 1
It is supplied to a coloring roll 12, and as the wood material A progresses, about 600 to 700 g of J per square meter is applied to the surface of the wood material A as it progresses. Furthermore, when the wooden material A is advanced in the direction of the arrow in the figure, the acupressure roll 22 of the acupressure device 2 rotating in the opposite direction to the advancing direction is used to apply the acetone solvent 2o of 21 to the colored wooden material. The colored stain applied in the previous step is applied to the surface of A to penetrate into the grained areas. Incidentally, in this embodiment, two sets of acupressure rolls 22 are provided as the acupressure device to perform this treatment in two stages, but the degree of acupressure to be applied depends on the color tone to be colored or the properties of the wood material A. Needless to say, the optimum one is determined. After cleaning device 3
The surface of the wooden material A is cleaned in the same manner as in the acupressure device 2.
The acetone solvent 3o is applied to a cleaning roll 32 to wipe off the surface of the wood material A. The main point of the processing shown in Figure 1 (A) is to unify the surface fabric of the lauan plywood (wood material A) to a certain range of color tones and to emphasize the grain, exclusive grain, etc. Therefore, it is necessary to have a common basic color and beautiful coloring so as to obtain a finish close to the skin of the desired tree species. From this point of view, relatively bright colors such as yellow and wine red are suitable for the coloring agent. Thin paper B is laminated onto such colored and dried wood material A as shown in FIG. 1(b). First, the treated wood material A is sent to the gluing device 5. In this device, glue is supplied from a vat 51 stored between shelves, and the glue is applied to the wood material A by a gluing roll 52. This glue 50 is made by adding a part of am urea (urea) resin to 100 parts of vinyl acetate adhesive, and is applied with a gluing roll 52 in an amount of 65 g to 70 g per square meter. 100°C~
The thin paper B is heated in a hot air oven 7 at 130° C. for 30 to 40 seconds, and the thin paper B is pasted onto the laminating device 6 in a state where the coated surface between the shelves becomes transparent. In this example, thin paper B is Japanese paper or paper with properties similar to Japanese paper with a square meter weight of 13 g and -16 g, and when one sheet is pasted, it becomes sufficiently transparent so that the surface of wood material A can be visually observed. It is something that uses things. The thin paper B of the L7 lever can be colored and impregnated in advance with a pale brown stain with excellent transparency. Of course, this coloring treatment can also be applied after the uncolored tissue paper B has been attached to the wood material A, or after the pre-colored tissue paper B has been attached to the wood material A, it is possible to apply a color tone that is even closer to the desired wood texture. There is no problem in applying other transparent coloring to obtain the desired effect.

The surface decorative structure of the wood material obtained in this way is a colored plate formed by polymerizing the yellow colored fabric directly formed on the surface of the wood material A and the light brown color of the colored thin paper B. It is possible to obtain a color tone similar to that of the desired cherry wood. And since this month's wood skin that can be seen here is a natural product of lauan plywood, which is a wood material A, this month itself is exhibiting a cosmetic effect in a state that is extremely close to natural.

<Example 2> This example corresponds to the second invention of the present invention.The material obtained by laminating the thin paper B obtained in Example 1 was further processed to obtain a cosmetic effect. It performs certain processing.

First, the material supplied in the state shown in FIG. 2(a) is a material in which a thin paper B is pasted to a wooden material A. Then, this material is sent to the solvent coating device 8, and as in the previous embodiment, the acetone solvent 80 in the vat 81 is applied to a square meter a I).
Approximately 30 g of the coating material is applied using the coating roll 82 to dissolve the colored portion of the thin paper B laminated on the wood material A. After that, in the acupressure device 2 where the acetone solvent 20 is similarly applied to the surface, the acupressure roll 22 rotates in the direction of movement of the wooden material A and applies sliding pressure on the surface, further removing the colored paint contained in the thin paper B. The conduit section of wood material A is filled so as to fill the conduit section evenly. After that, in the cleaning device 3, acetone solvent 3 is applied as in the above embodiment.
0 and then dried. After such treatment, the surface of the wood material A on which the thin paper B is laminated is fed to the coloring device 1 as shown in FIG. Paint lO is applied.

The applied colored layer is indicated by the symbol C.

Note that this coloring may be done only once, or it may be necessary to add appropriate processing, such as finishing with sanding vapor or the like and then covering with a transparent light brown color or a single layer of clear. There is no problem with this.

Compared to the product obtained in Example 1, the product thus obtained has a more luxurious appearance due to the formation of a transparent colored paint layer on its surface.

<Example 3> This is another processing method that can be applied to both Examples 1 and 2, in which a pattern reproducing this month is printed on tissue paper B and combined with the pattern on wood material A. It is designed to reproduce natural and varied wood texture patterns.

That is, the material to be supplied is the product obtained in Example 1, in which wood material A and tissue paper B are laminated. The desired pattern is printed in an extremely light color.

Further, a paint 90 containing a mixture of a urethane clear resin part and a urethane solvent part is supplied to a vat 91 in the pattern forming device 9, and a pattern following the pattern of an engraving roll 92 is applied to the paint 90 via a transfer roll 93. A small amount is applied to the surface of thin paper B and allowed to dry. The surface of the wood material A that has been treated in this way is printed in a single color with the special part of the wood material A, this month part, the tone of the thin paper B and another this month pattern, the pattern made with urethane clear, and the urethane bath salt. Due to the interaction, the stain and printed part of tissue paper B dissolves into the pattern of the engraving roll 92, and each pattern is prized to reproduce different wood textures that cannot be achieved with lauan plywood. This makes it possible to obtain a colored plate. If the material obtained in this manner is applied to the second embodiment, a decorative wood material with a different taste can be obtained.

[Brief explanation of the drawing]

FIG. 1 shows a first embodiment of the present invention.
and (b) are side views schematically showing the manufacturing process for obtaining the cosmetic structure of the first invention of the present invention, ρ9 is a perspective view of the product, and (b) is an enlarged sectional view of the same. FIG. 2 shows the second embodiment (a) and (a).
(b) is a skeletal side view showing the processing steps, and (c) is an enlarged sectional view of the product. FIG. 3 is a skeletal side view showing the manufacturing method of the third embodiment. A; Wooden material B; Tissue paper C; Paint layer Figure 2 (1') Q\) 31st fork

Claims (1)

[Claims] (1) A decorative surface structure for a wood material, characterized in that a thin paper layer having a desired transparent coloring is formed on the surface of the wood material having a base coloring of a desired color tone.
1(2) A thin paper layer with the desired transparent coloring is formed on the surface of the wood material that has been colored with a base color of the desired color tone, and a colorless or colored transparent paint layer is formed on the top surface of the thin paper layer. Surface decoration structure of wood material.