JPS5845904A - 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] Jin's invention relates to a method for manufacturing decorative veneers.

A composite flitch is obtained by laminating and compression bonding multiple wood veneers using an adhesive, and this composite flitch is sliced in a direction intersecting the laminated surface, and the cut surface of the wood veneer and the adhesive are sliced. In the method of obtaining a nine-laminated decorative veneer by expressing the wood grain pattern with the cut surfaces of the layers, a gentle floating treatment is applied to the surface of the resulting veneer to form nine uneven surfaces along the wood grain pattern. In addition, a method was developed in which the surface of the laminated decorative veneer is treated with plastic by utilizing the difference in hardness between the wood veneer described above to express the spring wood portion and the adhesive described above to express the summer wood portion. ing.

However, the conventional method has the disadvantage that the adhesive permeates into the back copper 1 of the veneer, making it impossible to create sharp reliefs 9.

Therefore, an object of the present invention is to provide a method for manufacturing a decorative veneer that can express a sharp relief.

An embodiment of Jin's invention is shown in FIGS. 1 and 2. That is, the method for manufacturing this decorative veneer involves obtaining a laminated decorative veneer that has been subjected to the embossing process using the following process steps.

(1) A wood veneer 1 is dyed with spring wood color dyeing bath 2 to obtain a dyed veneer 3 (Fig. 1, @).

(21 Emboss the back cracked non-exposed surface of the dyed veneer 3 to obtain a textured veneer 3'. 50-70
A colorless or spring wood-colored adhesive 4 with good cutting properties (-rubber hardness) is applied thinly and hardened by press to form a back crack sealing layer (FIG. 0).

(4) On the surface of the cracked seal layer of the unevenly processed veneer 3′,
A colored adhesive 4' having a hardness (70 to 90) higher than that of the adhesive 4 is applied (see the same drawing).

(5) Align the fabric side of the summer material colored adhesive 4' with the top and bottom facing down, stack a plurality of the textured veneers 3', and bond them with i-line using the textured pressing die 5. Cfm diagram (g) to obtain a freech 6 with a concavity and convexity assembly.

(6) Swivel the uneven assembly 7rich 6 from a predetermined direction intersecting the laminated surface thereof, so that the cut surface of the uneven veneer 3' and the cut surface of the summer wood color colored adhesive 4' are aligned. Obtain composite veneer plates that alternately appear face down (Figure C).

(7) The surface of the obtained composite veneer 70 is roll-bussogged to create a wood grain pattern due to the difference in hardness between the wood layer of the cut surface of the textured veneer 3' and the layer of summer wood colored adhesive 4'. 9 Laminated decorative veneer 9 that has been subjected to a relief treatment that exhibits an uneven shape along its length.
(Figure @, (1)).

In this embodiment, the surface of the dyed veneer 3 is textured to create a textured veneer 3' in a rounded manner that imparts a wavy width change to the summer wood portion of the wood grain pattern to be reproduced. However, this is not limited to this example, and can also be applied in the same way when noodles are made of untreated veneer 3.In this way, colorless or spring with low hardness is applied to the surface side of the dyed veneer 3 where the cracks appear. Apply adhesive 4 colored to the material color and seal the back crack! A plurality of dyed veneers 3 are laminated and pressed together using a summer wood-colored colored adhesive 4' which is coated on the surface of this back crack sealing layer and has a high hardness. The back cracking seal layer formed with the adhesive 4 of the summer material colored adhesive 4'
seepage into the back crack part, and the wood grain of the summer wood part 9m is reproduced as shown in Figure 2. The 1m5 surface side of the adhesive 4 (the side where the back crack is exposed) In addition, since the hardness is lower than that of the cracked seal layer, the summer wood coloring, and the packaging adhesive 4', it is difficult to brush the layer.
For K$P, ・Layer of summer material colored adhesive 4' and wear 6
Only the layer of colored adhesive 4' can be left as a convex part, and there is a danger that the existence of the back crack sealing layer may make the wood grain pattern unnatural.

Furthermore, in the space of the concavo-convex flitch 6,
The adhesive layer is composed of a back crack sealing layer, which is adhesive 4, which exhibits low hardness, and a colored adhesive 4', which exhibits high hardness and t-color, so that at the interface between the two liquid adhesives, The occurrence of peeling and chipping can be prevented, and the occurrence of defective products due to slicing can be greatly reduced.

As described above, according to the manufacturing method of the decorative veneer of this first invention, a low-hardness colorless or spring wood-colored adhesive is applied and cured to the back cracking surface side of the spring wood veneer to seal the back crack. a crack-back sealing step for forming a layer, and formation of the crack-back seal layer;
Laminate and press-bond the plurality of wood veneers for spring wood with their faces aligned in a predetermined direction using a summer wood packaging adhesive that has a harder hardness than the colorless or round spring wood color adhesive. The method includes a step of forming a laminated frit to obtain a laminated 7-rich veneer, and a slicing step of slicing the laminated 7-rich in a predetermined direction intersecting the laminated surface thereof. It is possible to express sharp raised marks without soaking into the wood and blurring the reproduced wood grain pattern, and the slicing of nine laminated flitches can be performed smoothly.
This has the effect of reducing the

[Brief explanation of drawings]

Figures 1 and 1) are explanatory diagrams of the process of watering one embodiment of the present invention, and Figure 2 is a plan view of a portion of the laminated specific gravity veneer. .

Claims (1)

[Claims] A back side sealing process of applying and hardening a colorless adhesive of low hardness to the exposed side of the back side of a wooden material veneer for spring lumber to form a back side sealing layer; and the back side sealing layer. A plurality of the wood veneers for spring lumber are aligned in a predetermined direction, and the plurality of veneers of the wood material for spring lumber are laminated and pressure-bonded using a summer lumber wrapping adhesive that has a higher hardness than the colorless or spring lumber colored adhesive. A method for producing a decorative veneer, comprising: a flitch forming step for obtaining a flitch; and a slicing step of slicing the flitch from a predetermined direction intersecting a laminated surface.