JPS5845903A - Manufacture of 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 provides a method for manufacturing a decorative veneer K11l.

A composite flitch is obtained by laminating and press-bonding multiple wood veneers using an adhesive, and this composite flitch is sliced in a direction intersecting the laminated surface to form a cut surface of the wood veneer and the adhesive layer. In the method of obtaining a laminated decorative veneer that expresses a wood grain pattern with the cut surface of A method has been developed in which the surface of a laminated decorative veneer is brushed by utilizing the difference in hardness between the wood veneer representing the wood portion and the adhesive representing the summer wood portion.

However, 1. When using the conventional method, when the surface of the veneer is highly uneven, the adhesive on the convex surface of the veneer is pushed out and biased towards the concave surface of the veneer, causing discontinuities in the summer wood area expressed by the adhesive layer, resulting in natural unevenness. significantly impairs the sense of

Therefore, an object of the present invention is to provide a method for manufacturing a decorative veneer without a sense of discontinuity in the summer wood portion.

One embodiment of this invention is shown in FIGS. 1(5) to 1).

That is, in this method of manufacturing a decorative veneer, a laminated decorative veneer is obtained by the following process steps.

(1) The wood material veneer 1 is dyed with spring wood color staining F62 to obtain a dyed veneer 3 (Fig. 1 (8), 忤).

(2) Emboss the surface of the dyed veneer 3 to obtain a textured veneer 3' ((C) in the same figure) 0(3)
A summer material colored adhesive 4 is thinly applied to the back cracked surface of the textured veneer 3' and is pressed and hardened to form a summer material middle layer portion (FIG. 3(D)).

(4) Surface K of the middle layer of the summer material of the unevenly processed veneer 3'.

Apply half the amount of summer wood coloring adhesive 4' to the bush that forms the summer wood area with this middle layer of summer wood ((E)'' in the same figure) m (5
) Laminate a plurality of the textured veneers 3' with the applied surfaces of the summer material colored adhesive 4' facing up or down, and press and bond them using a textured pressing die 5 to form a textured assembly of 7 layers. Get 6 (same (
2)(F)).

(6) Slice the IQ recording convex collection a7Q Chigo from a predetermined direction intersecting the laminated surface to form the unevenly processed veneer 3.
A composite veneer 7 is obtained in which the cut surface of `` and the cut surface of the summer material colored adhesive 4.4'' are alternately exposed in a board shape (see the figure (
G)).

(7)'The surface of the obtained composite veneer 7 is rubbed with a roll brush 8
Or brush it by sandblasting etc.
Due to the difference in hardness between the wood layer and the colored adhesive layer of the cut surface of the textured veneer 3', a laminated decorative veneer 9 is obtained which has been subjected to a relief treatment that exhibits unevenness along the grain pattern ( Same figure (6)
, (I)).

In this embodiment, in order to impart a wavy width change to the summer wood portion of the wood grain pattern to be reproduced, the surface of the dyed veneer 3 is textured to form a textured veneer 3'. However, the present invention is not limited to this example, and can be similarly applied to a case where a veneer whose surface is not treated is used.

In this way, after applying and curing the summer wood colored adhesive 4, the lamination 7 is made thicker, thereby preventing uneven distribution of the summer wood colored adhesive during pressure bonding and creating gaps in the summer wood area. This allows the reproduced wood grain pattern to have a rich natural feel.

In addition, in this embodiment, a summer material colored adhesive 4' is used as the adhesive used for forming the flitch assembly.
′ and the summer material color colored adhesive 4 that is applied and hardened in the first time to form the summer material part, the first summer material color colored adhesive 4
Since the amount of coating is kept to a medium amount for the summer wood part Kll, the penetration of the summer wood colored adhesive 4 into the cracks on the back of the dyed veneer 3 is reduced, and the reproduced summer wood part is improved. It is possible to make the wood grain sharp.

As described above, the method for manufacturing a decorative veneer of the present invention includes a summer wood part forming step of applying and curing a summer wood wrapping adhesive on the surface of a wood veneer for spring wood to form a summer wood part; A composite flitch forming step in which a plurality of the spring timber veneers are laminated and pressure-bonded with the forming surface of the summer timber portion in a predetermined direction using an adhesive to obtain a composite flitch; Since this method includes a slicing step of slicing from a predetermined direction that intersects with the laminated surface, it has the effect that the reproduced summer wood portion of the wood grain pattern can be seamless and rich in natural feel. - As mentioned above, - As a means of imparting a wavy width change to the summer wood portion of a laminated decorative veneer, it is possible to apply an uneven finish to the surface of the wood material veneer using an embossing roll or an uneven mold. Although this method has been used in the past, it requires high pressure to process the irregularities, and has the drawbacks of cracking and warping of the veneer.Also, if the moisture content of the veneer is high, The stability of the unevenness is poor when the applied unevenness is measured by drying treatment etc.
It has some problems.

As a method for solving such problems in the four-convex processing of wood veneers, a veneer manufacturing method as shown in Figure 2 is possible.

That is, this veneer manufacturing method is a method of rotary slicing a ball-cut log 10 to obtain a rotary slice veneer, and the lace blade 11 used for slicing is swung back and forth to control its feeding. The rotary sliced veneer is sliced while changing its width at regular intervals or randomly, and unevenness is imparted to the surface of the resulting rotary sliced veneer.In this way, the lace blade is used at the manufacturing stage of each veneer. By changing the feed width of 11, the thickness of the veneer is changed to KIR, and as a result of this K, the uneven processing is applied, so that the unevenness of the veneer is stable without being affected by the moisture content of the veneer. It is possible to reproduce the clear serrated annual rings in the laminated decorative veneer produced using this method, and since no pressure treatment is required to impart unevenness, defects such as cracks can be prevented, and the defect rate can be significantly reduced. Can be reduced.

[Brief explanation of drawings]

FIG. 2 is an explanatory diagram showing a process of an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a method for manufacturing a rotary slice veneer. l...Wood material veneer, 2...Spring wood color dyeing, 3...
・Dyed veneer, l...Irregularized veneer, 4, 4'...
Summer material colored adhesive, 5... Uneven compression mold, 6... Uneven laminated flitch, 1... Composite veneer, 9... Laminated decorative veneer path 11 Figure 2

Claims (2)

[Claims] (1) A summer wood part forming step of applying and curing a Table 1iK summer wood color adhesive on a wood material veneer for 11 materials to form a summer wood part;
a composite flitch forming step in which a plurality of the spring timber veneers are laminated and pressed together using an adhesive to form a composite flitch, with the formation surfaces of the summer timber portion aligned in a predetermined direction;
A method for manufacturing a decorative veneer, comprising a slicing step of slicing the tsuchi in a predetermined direction intersecting the laminated surface thereof. (2) The method for manufacturing a decorative veneer according to claim II (1), wherein the adhesive used in the flitch forming step is a summer wood colored adhesive.