JPS6152767B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing artificially decorated veneers.

An artificial decorative unit that reproduces a wood grain pattern on the wood surface by slicing the laminated fritsch obtained by laminating and press-bonding dyed veneers using an adhesive, and simulating the cut layers of the veneers of each material as the wood grain layer. In the conventional manufacturing method for artificially decorated veneers, if there is a resinous part in the material veneer that makes up the laminated fritsch, the resinous part is not dyed in the initial dyeing process, and this laminated veneer is not dyed. The cut layer at the glossy part of the artificial decorative veneer obtained by slicing the fritchi is exposed and becomes a whitish undyed part, which makes the artificial decorative veneer a defective product.

Therefore, in order to suppress the occurrence of such defective products, conventionally, at the dyeing stage of the initial material veneer,
The material veneer, including the resin part, was being sorted out and removed. However, since the material veneers that have been sorted and removed are disposed of as waste, not only is the wood usage yield low and uneconomical, but it is also difficult to discover the resinous parts that exist in the inner layer of the material veneers. Even after such a sorting process, the undyed parts of the artificially decorated veneer surface due to the resin surface were still exposed, and this could not be a fundamental solution.

Therefore, an object of the present invention is to provide a method for producing artificial decorative veneer that can prevent the occurrence of undyed areas due to spear parts and greatly improve the yield of wood.

An embodiment of the invention is shown in Figures A to G. That is, as shown in Figure A, in this method of manufacturing artificially decorated veneers, all of the material veneers 1 including a part of the veneer 1a are considered to be good products, and these material veneers 1... are dyed in a desired color. After processing, as shown in Figure B, it is laminated on the uneven mold 2 with an adhesive and bonded by pressure to form a primary assembly frit 3 which is deformed into irregularities, and this primary assembly frit 3 is shown in Figure C. A composite veneer 4 is obtained by slicing at a slice angle that intersects with the laminated surface to obtain a composite veneer 4 in which the cut layers of each material veneer 1 are exposed on the material surface in a grain pattern. As shown in Figure D, the resin part 1a is exposed as an unstained part on the surface.
A dyeing repair treatment is applied by applying an oil-soluble dye to the cut surface corresponding to the front side or both the front and back sides, and the composite veneer 4... which has been dyed and repaired in this way is as shown in Figure E. The secondary assembled fritches 5 were laminated on the uneven mold 2 using an adhesive and pressed and bonded to form uneven shapes, and the secondary assembled fritches 5 were sawn into a square shape as shown in Figure F. Slice it at the slice angle that intersects the laminated plane
The artificial decorative veneer 6 shown in FIG.

The material veneer 1 is dyed by boiling it in a dyeing solution for 5 hours, and after dyeing, it is dried to obtain a dyed veneer with a moisture content of 40%.

The material veneers 1 are laminated by combining a plurality of types of material veneers with different thicknesses and dyeings.

Other specific conditions in this example are as follows.

Material Veneer: Wood type...Agathis Thickness...1.2mm Dimensions...Length 1900mm x Width 330mm Dye: Metal complex dye Suminol Milling Brown, Suminol Milling Gred (both manufactured by Sumitomo Chemical Co., Ltd.) Adhesive: Type... ...Urethane adhesive application amount...110g/ ^m2 (both primary and secondary) Clamping conditions: Clamping pressure...10Kg/cm ² Clamping time...3 hours Clamping temperature...Room temperature (primary , 2nd) Repair dyes: Varifuast Brown, Varifuast Yellow (both manufactured by Orient Chemical Co., Ltd.) Slice thickness: 1st... 0.6mm 2nd... 0.25mm In this way, the material containing resin part 1a The veneer 1 is dyed as it is without being sorted and removed, and the primary composite fritches 3 are obtained based on this, and this is exposed on the material surface of the composite veneer 4 obtained by slicing the primary composite fritches 3. After dyeing and repairing the undyed part due to the cut layer of section 1a, assembling fritsch molding again →
Since the slicing process is repeated, the work of sorting and removing the material veneer 1 including the hard-to-find resin part 1a is not only omitted, but also the wood usage yield is improved because all the material veneer 1 is used effectively. Improved and economical.

Then, when the composite veneer 4 is formed, the resin contained in the inner layer of the raw material veneer 1 is detected and repaired by the cut layer that is exposed in an undyed state on the surface of the material. It is also possible to easily find the resinous part 1a that has been removed, and it is possible to avoid exposing the undyed part caused by the resinous part 1a to the surface of the artificial decorative veneer 6 that is finally obtained. .

In addition, the parts that have been dyed and repaired at the stage of composite veneer 4 are partially darkly colored, and this darkly colored part is expressed on the surface of artificially decorated veneer 6 to express a feeling of "strength". be able to.

In this embodiment, the case where the assembled fritches 3 and 5 are molded using the concave and convex plate 2 has been shown, but it is of course applicable to the case where they are formed using a flat mold.

As described above, the method for producing an artificially decorated veneer of the present invention includes a primary assembly fritch forming step in which dyed material veneers are laminated and pressure-bonded via an adhesive to obtain a primary assembly frit; A primary slicing step in which a composite veneer is obtained by slicing the primary assembled fritsch in a direction intersecting the laminated surface thereof, and a dyeing process in which the undyed veneer area on the surface of the composite veneer is repaired by dyeing with an oil-soluble dye. a repair process, and a secondary assembly fritsch forming process in which the dyed and repaired composite veneers are laminated and pressure-bonded via an adhesive to obtain a secondary assembly fritz;
Since the method includes a secondary slicing step of slicing the secondary laminated flitch in a direction intersecting the laminated surface thereof, there is no need to sort and remove the material veneer including the resin part, and the wood utilization yield can be greatly improved. Not only is it possible to repair the undyed areas at the composite veneer stage, but it also makes it easier to find the resin parts, and the unstained parts on the surface of the artificially decorated veneer due to the presence of resin parts can be easily detected. This has the effect of significantly reducing the occurrence of.

[Brief explanation of the drawing]

The entire drawing is a process explanatory drawing showing one embodiment of the present invention. 1...Material veneer, 1a...Yin part, 2...Concave and convex type, 3...Primary laminated fritsch, 4...Composite veneer,
5... Secondary laminated fritsch, 6... Artificial decorative veneer.

Claims (1)

[Claims] 1. A primary assembly fritch forming step in which dyed material veneers are laminated and pressure bonded via an adhesive to obtain a primary assembly frit; and the primary assembly frit is sliced in a direction intersecting the laminated surface thereof. A primary slicing process for obtaining a composite veneer, a dyeing repair process for dyeing and repairing the undyed veneer area on the material surface of the composite veneer with an oil-soluble dye, and applying the dyed and repaired composite veneer to an adhesive. An artificial decorative veneer comprising: a secondary laminated fritch forming process in which a secondary laminated fritchi is obtained by laminating and press-bonding the flitch through a laminate; and a secondary slicing process in which the secondary laminated flitch is sliced in a direction intersecting the laminated surface thereof. manufacturing method.