JPS59218802A - Manufacture of aggregate 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] [Technical valve! l! F] This invention belongs to the field of so-called veneer assembly technology, in which a flitch is created by integrating layers of wood veneers using adhesive, and then sliced to express wood grain artificially.

[Background Art] Conventionally, as a general manufacturing method for laminated veneer, the following technology has already been implemented.

In other words, first, a veneer is made from relatively low-grade logs using rotary lace, etc., bleached and dyed as necessary, and then laminated with an adhesive and sandwiched between molds. The flitch is created by pressing the flitch, which is then sliced to obtain the desired small plate assembly.

Products have already been commercially available using the above technology, but there are some issues in terms of fidelity to natural wood grains, and efforts are still being made to improve the technology.

For example, with regard to tree species such as ash and zelkova, which have three-dimensionally concentrated ducts, the subtle effects caused by local differences in duct density that appear in the grain of the wood are difficult to express in laminated platelets, and have no practical meaning. However, there were almost no examples of successful expression. Attempts have only been made to express the wood grain using techniques such as the use of adhesives, dyeing techniques for veneers of material, or slicing techniques. However, no practical results have been obtained.

[Purpose of the invention] The present invention is to develop a laminated veneer for expressing wood1, such as ash and zelkova, which have a difference in conduit density especially in the pore area (concentrated three-dimensional conduit part) that appears in the grain. The purpose is to provide a manufacturing method.

[Disclosure of the Invention] In this invention, the production of the raw material veneer is carried out in the conventional manner. Material processing) 1. In advance, if necessary, bleach and dye the material to make raw material veneer.

Add arbitrary grooves with different depths to the raw material veneer.

There are no particular limitations on the number, scale, and form of the grooves provided. However, in order to differentiate the conduit density, two
A groove larger than the seed cheek is required. Furthermore, there is no particular limitation on the method of providing the grooves, and for example, methods such as roll pressing, cutting, etc. may be employed as appropriate. FIGS. 1 and 2 illustrate examples of the grooved raw material veneer. FIG. 1 is a perspective view showing a raw material veneer 1 with grooves 2 provided thereon. FIG. 2 is a sectional view of FIG. 1, where 2a is a deep groove and 2b is a shallow groove.

These arrangements are arbitrary, and the depth limit is also arbitrary.

After preparing the raw material veneer provided with the grooves 2a and 2b as described above, it is flitched by a conventionally known method and sliced to form a laminated veneer.

In addition, the adhesive is applied to the surface of the raw material veneer that is not flattened, and a molding board with an uneven curved surface is used.
Stack them to form a flitch with the grooved side facing the convex side, and slice the slices so that the grain is exposed.

Example A raw material veneer dyed anche color was roll pressed using a roll having an uneven surface to give grooves to the raw material veneer.

The shape of the lli surface of the veneer was as shown in Figure 2. Urethane-based adhesive is used, and the direction in which the raw material veneers are stacked is so that the grooved side faces the convex side, and is molded with an uneven mold.
The flitch was obtained and sliced into a laminated veneer 3 (shown in plan view) as shown in FIG. 3 for 1H. In the laminated veneer 3 obtained here, the pore areas 4 were expressed as having different conduit densities, giving it a rich natural feel.

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating a grooved veneer used in the present invention, FIG. 2 is a sectional view corresponding to FIG. 1, and FIG. 3 is a schematic plan view of the assembled veneer. ■ is a grooved raw material veneer 2 is a groove, 2a is a deep groove, 2b is a shallow groove 3 is a laminated veneer 4 is a hole area Patent applicant Toshimaru Takemoto (two idiots), patent attorney representing Matsushita Electric Works Co., Ltd. Figure 1 2 2nd r mi 1 noa 31st

Claims (1)

[Claims] (1) In the manufacturing method of laminated veneer, grooves of different depths are provided to the raw material veneer, adhesive is applied to the opposite side of the veneer, the layers are laminated, and the layers are sandwiched between molds with uneven curved surfaces and pressed together. A method for producing laminated small plates, which is characterized by obtaining flitches by slicing them, and then slicing them in the direction in which the grains appear.