JPS58168502A - Manufacture of aggregate 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] [Purpose] In the manufacturing method of laminated decorative veneer using wood lamination technology, a decorative veneer made of a tree species having three-dimensional concentrated conduits such as oak, the randomness (conduit The aim is to produce laminated decorative veneers with a more natural feel by realizing the process of cutting (cutting).

[Background Art] Conventionally, it has been quite difficult to realize a concentrated three-dimensional conduit during the production of laminated decorative veneers, and in fact, it has not been implemented at all.

In view of this, the present inventors prepared a raw material veneer for expressing a concentrated conduit, that is, a veneer in which striations on which wood powder was sprinkled were formed between the striations of the raw material veneer. Efforts have been made to make it as close as possible to natural products.

As a result, we developed a method of separately adjusting and using a veneer plate for expressing three-dimensional concentrated conduits (hereinafter referred to as the veneer plate for holes) as shown in Fig. 1. According to this method, a decorative veneer as shown in the modeled plan view of FIG. 2(a) can be obtained. However, in the case of natural pipes, the conduit portion is cut off, as shown in the model shown in Figure 2 (b). These differences undermined the fidelity of laminated decorative veneers. This invention was made in view of such circumstances.

DISCLOSURE OF THE INVENTION] The present invention will be described below based on drawings showing embodiments.

FIG. 3 is a process diagram showing a method of manufacturing a veneer for holes in the present invention. In FIG. 3(a), la and lb are raw material veneers, 2 is a strip of wood, and 3 is a resin foam layer. This is fixed onto the raw material veneer 1a using an adhesive. Here, there is no equivalent limitation regarding the resin foam. However, as described below, it is most preferable to use urethane resin. A desired number of such assembled units are stacked up using adhesive, and as shown in (b), they are sandwiched between mold plates 4 and formed into free notches (1).
2 + lower first-order flitch). If a urethane resin adhesive is used as the adhesive here, the foam layer t-' is created at the same time, so there is no need to use a separate resin foam. In short, it consists of strips of wood and a resin foam layer between the raw material veneers, and these are lined up side by side to form a single layer. By slicing the primary flitch 5 obtained here using a blade 6, a veneer 7 for holes is obtained.

Note that the wood pieces 2 placed on the raw material veneer l are arranged at certain intervals. Further, they may be arranged randomly or substantially parallel. A portion where the resin foam 1- is formed is formed between them. Further, the slicing direction of the primary flitch is such that the straight grain appears and the end face of the wood piece 3 and the resin foam portion appear simultaneously on the surface of the veneer for the holes. The resulting veneer is shown in a perspective view in FIG. 4(a). That is, the filament 8a formed by the side end surface of the raw material veneer l
runs over the entire length of the veneer for holes, and between them, short lines 8b where the edges or side edges of the wood piece 2 appear and short lines 8C formed by the foam portion 3 are alternately formed. Article exists.

As shown in FIG. 4, the hole veneer 7 obtained in the above manner is mixed with the raw material veneer 9 and laminated (usually alternately) using an adhesive to form an uneven surface. mold board 10
It is sandwiched between the two and compressed to form a flitch (hereinafter referred to as secondary flitch). By slicing this flitch, the desired laminated decorative veneer 11 is obtained.

A more detailed explanation will be given below based on examples.

Example 1 First, in order to create a primary flitch, 0.
A raw material veneer with a thickness of 25 to 0.60 mm was dyed in the pore color of oak using a commercially available dye. The dyed veneer obtained here is 4
The moisture content was 0-50%. Apply urethane resin adhesive (approximately 100 g/%) on top of this veneer, and on top of that, strips of wood (agathis wood, thickness 0°3 mm, width approx. 5 mm) dyed in the same color as the dyed veneer. Approximately 20 pieces were arranged with the fiber direction aligned with the veneer and spaced apart from each other. Next, apply urethane resin adhesive to both sides of the dyed veneer (70 g per side)
cJ) 1. Then, the wood pieces were placed on top of the above-mentioned arrangement of wood pieces, and further wood pieces were arranged on top of the above arrangement at intervals. This series of operations was repeated about 50 times in about 15 minutes to stack the layers, which were then sandwiched between flat mold plates and compressed with a pressure of 1.5 kg/co+G.
It became a flitch.

Next, this primary flitch was sliced in the straight grain direction to a thickness of 0.35-5 to 0.40 mm to obtain a veneer for holes. In addition, dyed veneer (tepa wood, approx. 1.
0mm thick), these two types of veneers were laminated with about 50 crosspieces using adhesive, and then pressed with a concave-convex mold (about 15 kg/c
+49) to obtain a second-order flitch. Next, we sliced this flitch to obtain a decorative oak laminated veneer that expressed a concentrated three-dimensional conduit with a random distribution (the conduit was broken into pieces).

Example 2 In Example 1, the width of the wood piece during primary flitch molding was
The test was carried out by varying lQmm and randomly arranging the wood pieces. This made it possible to provide even more random distribution of conduits than in Example 1.

Example 3 In Example 2, the molding pressure during primary molding was set to 3 kg/c.
It was carried out in dG. As a result, a decorative veneer with small and randomly distributed conduit systems was obtained.

[Effect] This invention creates a primary flitch by laminating raw veneers with an adhesive and pressing them with a mold plate, and then slicing this in the straight grain direction to produce a veneer for perforation. Next, when the raw veneers are laminated using adhesive, the veneer for perforation is mixed and laminated, and a secondary flitch is created by sandwiching and pressing between molds, and then slicing. A method for producing a laminated decorative veneer comprising:
Next, when making a flitch, a layer consisting of a strip of wood and a resin foam layer is interposed between the raw material veneers, so it is possible to create randomness in the conduit distribution and conduit length. As a result, a laminated decorative veneer that closely resembles natural wood was obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view illustrating a perforation veneer as a background art, Fig. 2 is a plan view illustrating a laminated decorative veneer having a concentrated three-dimensional conduit, and Fig. 4 shows the process of creating a primary flitch. The process diagram, FIG. 4, is a process diagram showing the process of creating a secondary fringe and a second chip and manufacturing a laminated decorative veneer. 1... Raw material veneer 2... Strip wood veneer 3... Resin foam layer 5... Primary flitch 6... ...Applicant for patent for veneer for Komei Matsushita Electric Works Co., Ltd. Representative Patent Attorney Toshimaru Takemoto (2 persons) Figure 4 (a) Procedural amendment (Holi ■, case indication 11 measure 57) Year: Patent side No. 054344 2, Name of the invention: 1Ji1.Sadai Asu Shiba's 1N Reri 3, Relationship with the person making the amendment Patent applicant address: 1048 Kadoma, Kadoma City, Osaka Prefecture
Name (583) Matsushita Electric Works Co., Ltd. Representative: Iku Kobayashi 4, Agent address: 1048-5 Oaza Kadoma, Kadoma City, Osaka Prefecture Date of amendment order: July 27, 1980 Statement of contents of amendment, page 7, 16 Line 1 (brief description column of the drawing)
"Figure 4" is corrected to "Figure 1 Figure 3." Above (1) 8

Claims (1)

[Claims] (1) Raw veneers are laminated with adhesive and pressed with a mold plate to create a primary flitch. Next, this is sliced in the straight grain direction to create a veneer for drilling holes. When laminating the raw material veneers using an adhesive, the veneer for hole punching is mixed and laminated, and the veneers are sandwiched between molds and pressed together.
A method for producing a laminated decorative veneer comprising the steps of making a second flitch and then slicing the first flitch. A method for producing laminated decorative veneer, which is characterized by the interposition of layers.