JPS5920604A - 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 (a) Technical field The present invention belongs to the field of technology for manufacturing higher grade laminated veneers using veneer lamination techniques obtained from low-grade logs.

(b) Conventional technology As the depletion of natural precious wood resources becomes apparent, the fields of use of laminated veneer are expanding. Efforts are also being made to make the use of laminated veneer more natural.

Various efforts have been made to express wood species with many ducts using laminated veneers, but no definitive idea has yet been found.

However, attempts have been made in the past to impart a sense of luxury by applying wiping technology to laminated veneers to make the wood grains more noticeable.

To explain this in detail, a veneer obtained from a material with a relatively large number of conduits is used as a veneer for holes, and this and a veneer for non-holes are compositely laminated and pressed to form a flitch. This is sliced into laminated veneers, which are then subjected to a wiping process.

However, in the above method, the adhesive used when combining two types of veneers, that is, the adhesive used for flitching, penetrates into the veneer between the holes, so the wiping agent is mixed with the veneer between the holes. It no longer permeated the board, and the coloring properties in the pore areas were considerably inferior to that of natural veneer. As a result, only laminated veneers were obtained that lacked a natural feel.

(C) Purpose of the Invention The object of the present invention is to provide a method for expressing wood with a wiping coating of natural spider, shiji, etc., which makes the grain of the wood stand out due to its grain weight, using the veneer lamination technique.

(d) Disclosure of the Invention This invention involves making cuts in the shape of a wood grain in a veneer obtained by a lamination technique, where the adhesive layer appears in a straight grain pattern, in order to make the wood grain stand out by wiping and obtain a more natural look. This method is characterized by applying a large number of

A detailed explanation will be given below with reference to the drawings shown as examples.

In the figure, 1 indicates a flat plate flitch. This flat plate flitch 1 is obtained by laminating raw material veneers with an appropriate adhesive interposed, and pressing them between flat plate molds to form a flitch. Next, this is sliced so that the grain is straight to obtain sliced veneer 2. Next, cut 3 is made in the sliced veneer 2 in the shape of a wood grain. This wood grain-like cut 3 is usually provided in the shape of a board. Note that the means for making this incision is not particularly limited. For example, a method using a roll with a suitable blade embedded therein, or a method of manually making cuts using a cutter knife, etc. are used. The density, width, depth, etc. of the cuts can be designed appropriately depending on the wood grain to be expressed.

After making the cut 3, wiping is performed in a conventional manner. The wiping conditions are arbitrary.

The sliced veneer 2 is obtained with a straight grain.The reason for this is that when the adhesive layer appears as a wood grain, the adhesive penetrates into the veneer and hardens.
This is because it is convenient because it is limited to only the part where .

Note that the raw material veneer used in this invention may be of any tree species, and the veneer is obtained from logs by rotary lace, etc., and is subjected to bleaching and pre-coloring as necessary to carry out this invention.

(e) Examples [Part 1] The implementation procedure is shown below.

■ Decolorize a veneer (thickness: 0.8 m++) obtained by rotary lacing Agatis wood to a moisture content of 40 to 50%.

■Urethane adhesive colored with commercially available white pigment is 100±
A flitch is manufactured by applying the coating at a ratio of lOg/rrr, laminating the layers, sandwiching them between flat plate molds, and pressing them together.

■ Slice the flitch from (■) in the straight grain direction to obtain a veneer (thickness: 0.611 m).

■ Use a utility knife to make cuts in the wood grain pattern of the veneer from (■) above.

■ Apply wiping treatment to the veneer board mentioned above.

As described above, a laminated decorative veneer having the desired grain was obtained. The wiping agent penetrated well into the cut areas, and the wood grain was very noticeable, resembling natural shioji wood.

[Part 2] The steps up to step (2) were the same as in Example 1 above.

From step ①, the procedure was carried out as follows.

■ Add 100g of white colored adhesive to the veneer from ■ above.
cJiI was applied to produce a flat flitch.

■ The flitch of (■) above was sliced in the straight grain direction to obtain sliced veneers.

■ Cuts were made in the shape of the wood grain using a cutter knife on the sliced veneer of the above (■).

■ Wiping treatment was applied to the veneer of (■) above.

When the constructed veneer obtained above was evaluated, the wood grain was very noticeable and was very similar to the wood grain when natural spider wood was wiped.

(F) Effect This invention involves laminating raw material veneers with an adhesive in between, sandwiching them between flat plate molds and pressing them to form flitches, and then slicing this in the straight-grain direction to form slices with straight grains. The unique feature of this method is to obtain a board, then cut into the veneer in the shape of a wood grain, and then wipe it, making it possible to create a wood grain similar to that of natural ring-hole wood.

[Brief explanation of drawings]

The figure is a schematic diagram showing the manufacturing process for explaining the present invention. 1: Flat flitch 2: Sliced veneer 3: Wood-grained cut Patent applicant: Matsushita Electric Works Co., Ltd.

Claims (1)

[Claims] (1) In the manufacturing method of laminated veneer, the raw veneers are laminated with an adhesive in between, are sandwiched between flat plate molds and pressed to form a flitch, and then this is sliced in the straight grain direction to reveal the straight grain. A method for producing laminated veneer, which is characterized by obtaining sliced veneer, then cutting the veneer in the shape of a wood grain, and then wiping the veneer.