JPH0462103A - Preparation of wood veneer - Google Patents

Abstract

PURPOSE:To obtain simply a wood veneer wherein the grain of wood changes thick and thin like a sun tree by a method wherein a coloring agent with a color of the grain of wood is transferred on a veneer for a spring wood with a color of the spring wood and a plurality of this veneer for the spring wood are laminated and molded and this is sliced to form a wood veneer. CONSTITUTION:A lot of irregularities 6 are randomly provided on a coating roll 5 and a colored adhesive 1 which is very similar to a color of the grain of wood of a material like a sun tree is fed on the coating roll 5 and the surface of a veneer for a spring wood dyed into a color of a spring wood of a material like a sun tree is coated with a colored adhesive 1a by means of the coating roll 5 and the colored adhesive 1a is cured by pressing it through a release sheet. The veneer 2 for a spring wood coated spottedly with the colored adhesive 1a is coated with an adhesive for lamination by means of an ordinary roll coater and a plurality of veneers 2 for a spring wood are laminated and press-molded to form a flitch. When a wood veneer 3 with a straight grain is required, it is pressed by a top mold 8a and a bottom mold 8b of a mold for a straight grain and when a wood veneer 3 for a grain is required, it is pressed by an upper projected mold 9a and a lower recessed mold 9b of a mold for a grain. A veneer 3 is obtd. by slicing the flitch after it is sawed up.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of manufacturing a wood veneer with a grain using a spring wood veneer of a spring wood color, and particularly relates to a method for producing a wood veneer with a grain of wood using a spring wood veneer of a spring wood color. It relates to a method for manufacturing wood veneer in which the width of the wood grain becomes partially thicker or thinner (depending on the angle), like Japanese cypress.

[Conventional technology] Conventionally, methods for artificially manufacturing wood veneers with wood grain include inserting different types of wood (non-woven fabric, paper, etc.) between spring wood veneers of spring wood color, or A colored adhesive is applied to the spring veneer and pressed, or a transfer sheet is used to apply a coloring agent to the surface of the spring veneer, and multiple pieces of this spring veneer are laminated and formed into flitches. This flitch was then sliced.

[Problems to be Solved by the Invention] The use of different types of wood in the conventional method described above is applied to wood species with thick grains (for example, pine), and it is difficult to apply the colorant adhesive by seal pressing or transferring it with a transfer sheet. is applied to wood species with narrow grains (PA such as cedar and cypress). However, there is a problem that both the seal press using colored adhesive and the transfer using a transfer sheet as described above result in the same grain of wood, and the width of the wood grain becomes partially thicker or thinner as in 5 Japanese cypress. The problem was that it was not possible to manufacture products that

The present invention has been made in view of the above points, and the object of the present invention is to easily obtain a wood veneer with thick or thin grains like Japanese cypress. To provide a manufacturing method.

[Measures for solving the problem 8] In order to achieve the above object, the method for manufacturing the wood veneer of the present invention is as follows:
A wood grain coloring agent 1 is transferred in a mottled manner to a spring wood veneer 2 of a spring wood color, a plurality of spring wood veneers 2 are laminated and molded, and this is sliced to form a wood veneer 3. It is characterized by

[Effects] By transferring the colorant 1 to the spring wood veneer 2 in a mottled manner, the width of the wood grain 4 formed by the colorant 1 becomes thicker or thinner when sliced (or becomes invisible depending on the angle). A wooden veneer 3 with a similar appearance is obtained.

[Example] As shown in FIG. 1, a large number of irregularities 6 are randomly provided on a coating roll 5 for a roll coater that applies a colored adhesive 1a as a coloring agent 1, and a doctor roll is applied to the coating roll 5. 7 is inverted.

First, a colored adhesive 1 that closely resembles the wood grain color of a material such as Japanese cypress is applied to the application roll 5, and the application roll 5 is applied to the surface of the spring wood veneer 2 that has been dyed in the color of the spring wood of a material such as Japanese cypress. The colored adhesive 1a is applied as shown in the second section, and the colored adhesive 1a is cured by pressing through a release sheet. At this time, the size and depth of the concave and convex portions 6 of the applicator roll 5 vary depending on the target tree species and the colored adhesive 1a used.
The approximate depth of the recess is approximately 0.1 to 1.0 mm. Spring wood veneer 2 with this colored adhesive 1a applied in spots
A lamination adhesive is applied to the spring material using a normal roll coater, and a plurality of spring material veneers 2 are stacked and press-formed to form a flitch. At this time, when obtaining the straight-grained wood veneer 3, as shown in No. 30(a), the upper and lower molds 8a of the straight-grain mold 8,
8b to obtain a wood veneer with a grain of 3, press the 3rd
As shown in Figure (b), the plate is pressed using the upper and lower convex molds 9a and concave molds 9b of the grain mold 9. The flitch thus formed is sawn and then sliced to obtain a wood veneer 3 as shown in FIG. 4 (the wood veneer 3 in FIG. 4 has a wood grain of 4).

Further, FIGS. 5 and 6 show other embodiments.

As shown in FIG. 5, a coloring agent 1 such as ink is applied to a transfer sheet 10 using a roll or the like so as to give a gradation, and the coloring agent 1 is applied to a spring wood veneer 2 of a spring wood color using this transfer sheet 10. 1, a plurality of spring wood veneers 2 are laminated and pressed in the same manner as in the above embodiment to form a flitch, and the flitch is sliced to obtain a wood veneer as shown in FIG. (The wood veneer 3 in Figure 6 is of straight-grain wood grain 4.)
.

C Effects of the Invention As described, the present invention transfers a wood grain coloring agent in a mottled manner onto a springwood colored veneer, then laminates a plurality of these springwood veneers, and slices them. Since it forms a wood veneer, the coloring agent transferred to the spring wood veneer in spots produces a wood grain that becomes thicker or thinner in the middle when sliced, creating a wood that closely resembles natural Japanese cypress wood. A veneer is obtained.

[Brief explanation of the drawing]

Fig. 1 is a flat WJ opening showing the coating roll and doctor roll used in the method of one embodiment of the present invention, Fig. 2 is a plan view of the same coloring agent applied to a spring wood veneer, and Fig. 3 (a) (
b) is a schematic diagram showing the press-forming mold as above, FIG. 4 is a plan view of a wooden veneer obtained by the same method, FIG. 5 is a plan view of a transfer sheet of another example of the same method, and FIG. 1 is a plan view of a wood veneer obtained as above, 1 is a coloring agent, 2 is a veneer for spring wood, 3 is a wood veneer, and 4 is a wood grain. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] [1] A wood grain coloring agent is transferred in spots to a spring wood veneer of a spring wood color, a plurality of these spring wood veneers are laminated and molded, and this is sliced to form a wood veneer. A unique method for manufacturing wood veneers.