JPS583807A - Manufacture of artificial decorative veneer - 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 method for manufacturing artificial decorative veneers, and its purpose is to improve the strength of the material veneer and to prevent problems such as Hm warping during flitch cutting in artificial decorative veneers. The purpose is to provide a manufacturing method for artificially decorated veneer that can effectively prevent damage to the board, and to contribute to the development of this industry with dust.

Conventionally, in order to obtain this type of artificial decorative veneer, raw wood is rotary cut or sliced and cut into suitable dog kennels.The material veneer obtained is then subjected to wind colored veneer or dyed veneer, and then A large number of veneers of this material are laminated via adhesive, and are pressed together to form a flitch.
It has been a widely known technique to then slice the flitch into thin pieces.

However, in the above-mentioned conventional method for manufacturing artificially decorated veneers, the strength of the material veneer itself is weak, so there is a problem in that the ridges used for slicing the flitch tend to become hollow and other veneer damage phenomena occur easily. . In particular, the material veneer is decolored J611. Alternatively, when chemical dyeing such as dyeing I & Coral is applied, the strength of the material veneer itself deteriorates significantly, and the phenomenon of veneer breakage is noticeable.

One possible solution to the above conventional manufacturing method is to infiltrate the material veneer with resin, but in this case, if the material veneer has a high moisture content, it is extremely difficult for the resin to penetrate. For the first time, #[ is actually difficult to use.

The present invention solves all of the drawbacks of the conventional manufacturing method.
It was done for the purpose of encouraging.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in FIGS. 1 to 6.

The present invention involves rotary cutting logs such as Agatis wood, Labra wood, and white veneer wood to obtain long-layer rotary veneers, which are then cut into appropriate sizes with a thickness of 0.2% to 2.5%.
．． Create a 0% material veneer (1). Then, if necessary, after immersing the material veneer (1) in a decolorizing solution (2),
Dip it in the dyeing solution (5) and dye it to the desired tone/color. Next, apply a polyurethane coating on the entire surface of the material veneer (1) in an amount of 50 g/W! ~1oOg/W!
Apply at a temperature of 1°C to 120°C.
C., time sQ @@@ to 901@@, pressure 2!11 to Ns, and a reinforcing film layer (4) is formed on the surface of the raw material veneer (1). The emulgene used for this treatment has a particle size of 10μ or less and a viscosity of 100o, p.
-The following is preferable for the purpose of improving the permeability into the interior of the material veneer (1).Next, a large number of said material veneers (1) having a reinforcing film layer (4) on the surface, Each layer is laminated with an adhesive such as urethane resin adhesive or phenol resin adhesive interposed, and from the top and bottom, the inner 1i
ii A pair of presses with unevenness of pure male and female relationship (!5)
(15) to tighten the adhesive into the hardened tube to form a 7-rich (6) with an uneven shape.

Next, the flitch (6) is cut into slices to obtain an artificial decorative veneer (7) with a wood grain pattern.

Since the manufacturing method of the artificially decorated veneer of the present invention is configured as described above, the material veneer constituting the flitch has a reinforcing film layer made of polyurethane emulsion snow formed on its surface, and also has S*V - Since the polyurethane emulsion penetrates into the inside of the material veneer, it has the effect of making it difficult to cause gouges and other veneer damage phenomena when slicing the flitch. Since a reinforcing film layer is formed on the surface of the board, the adhesive will not penetrate into the inside of the material veneer, and as a result, the wood grain of the artificially decorated veneer will be sharp and clear. are doing. In addition, since polyurethane emulsion is used in the present invention, for example, vinyl acetate resin emulsion,
Unlike acrylic resin resin, once a film is formed, it will not soften due to the influence of water, and the material veneer will remain the same even if stored during the manufacturing process. There is no blocking phenomenon and it is extremely convenient to handle.

[Brief explanation of the drawing]

FIGS. 1 to 6vA are drawings of an embodiment of the method for manufacturing artificially decorated veneers of the present invention, and FIG. 1111 is a perspective view of a material veneer, and FIGS. FIG. 4 is a sectional view of the main part of the material veneer on which a reinforcing film layer has been formed; FIG. 5 is a side view showing the state in which a flitch is formed; FIG. The figure is a perspective view of an artificially decorated veneer. 1...Material veneer, 2...Decolorizing liquid, 3...Brass colored liquid,
4... Reinforcement film layer, 5... Press, 6... Flitch, 7... Artificial decorative veneer. Patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Toshimaru Takemoto (and 2 others) 5IWJA 112 Figure 3111 Figure 4 Figure 5 @ Figure IIc

Claims (1)

[Claims] 1) Applying a polyurethane emulgene solution to a veneer of material,
After reinforcing the material veneers, a large number of these material veneers are laminated in the traditional manner with adhesive interposed, and then pressed into a single piece to form a flitch. A method for manufacturing an artificially decorated veneer, which is characterized in that the flitch is then cut into slices.