JPS6015102A - 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] [Technical Field] The present invention relates to a method for manufacturing a decorative veneer, and more particularly, to a method for manufacturing a decorative veneer that expresses a natural look and a non-uniform concentrated conduit portion with a natural feel. be.

[Background technology]

Conventional decorative paneling involves laminating material veneers via adhesive and press-bonding them to obtain a laminated flitch, and slicing this to create a wood grain pattern on the wood surface that imitates the cut layer of the material veneer as a wood grain layer. Various methods were used to manufacture the boards to create a wood grain pattern that mimics the concentrated conduits found in natural zelkova wood.

For example, a material veneer is made into a flat laminated flitch in advance, and this is sliced in a direction perpendicular to the laminated surface to obtain a sliced veneer with a straight grain pattern. The composite flitch was then sliced.

However, in the decorative veneer thus obtained, the concentrated conduit portion 12 is uniform, as shown in FIG.
It was not possible to express the uneven concentrated duct area where the concentrated ducts partially appeared as seen in ordinary natural tree species.

[Purpose of the invention]

This invention can express a non-uniform concentrated conduit section,
The purpose is to provide a method for producing a decorative veneer with a natural feel.

[Disclosure of the invention]

In this invention, a plurality of veneers of the first material are laminated with an adhesive and bonded by pressure to obtain a primary assembled flitch.

A step of slicing this from a direction almost perpendicular to the laminated surface to obtain a primary sliced veneer for expressing a concentrated conduit section;
The next sliced veneer is combined with a second plained veneer, laminated and bonded by pressure to obtain a second assembled flitch, and this is sliced at a predetermined inclination angle to the laminated surface to create a second sliced veneer. The method includes the steps of: obtaining a tertiary assembled flitch by combining the second sliced veneer with the second raw material veneer, laminating and bonding the second material veneer by pressure, and slicing this.

Hereinafter, the method of the present invention will be explained in detail with reference to FIG. 1(3) to Jl. First, the first material veneer 1 and the second material
The material veneer 2 and the material veneer 2 are respectively dyed. These raw wood veneers 1.2 are all nine veneers made by processing logs that have been watered for decorative veneers into a constant thickness using a rotary relay 2 or a slicer. Dyeing is carried out by immersing 1.2 veneer panels for a certain period of time in a dyeing tank in which a certain amount of dye is dissolved. At this time, the second material veneer 2 is dyed in a color tone close to the surface color of the dyed first material veneer 1. After dyeing, each material veneer 1.
Dry and humidity control 2.

In step b, the first material veneer 1 is pressed and bonded in a flat mold as shown in FIG. 1 (C1) to obtain a primary assembled flitch 3. 2. Then, as shown in Figures 1 (DI and (El), the assembled flitch 3 is sliced from the direction perpendicular to the laminated surface to obtain a primary slice in which a straight-grained pattern appears on the cut surface. A veneer 4 is obtained. The sliced veneer 4 is sliced so that the thickness of the sliced veneer 4 is about 100 to 100 mm thicker than the thickness of the second raw material veneer 2.

The obtained single slice veneer 4 is combined with the second raw material veneer 2 as shown in FIG.
The next assembled flitch 5 is obtained. The ratio of primary slice veneer 4 to second material veneer 20 is approximately 1 to 5:1, and these veneers 2
．． 4 are alternately stacked in one layer.

The secondary assembled flitch 5 is then sliced at an angle of about 0.5 to 1.0° as shown in FIG. A secondary Swiss veneer 6 is obtained.

Next, the secondary sliced veneer 6 and the second raw material veneer 2 are alternately laminated at a ratio of about 1 to 5:1 and bonded by pressure in a flat mold in the same manner as described above to obtain the three-piece frit 7. By slicing this flitch 7 in a direction substantially perpendicular to the laminated plane, it is possible to obtain a straight-grain decorative nesting board 8 in which the concentrated conduit portions 9 are uneven, as shown in FIG.

In addition, as shown in FIGS. 2(3) and 03), a combination laminate of the secondary sliced veneer 6 and the second raw material veneer 2 is pressed and bonded with a concave-convex mold 10, and the resulting tertiary By slicing the flitch 7' in the direction intersecting the laminated plane, it is possible to obtain a decorative veneer 11 with a grain pattern having uneven concentrated conduit portions 9' as shown in FIG.

Next, the present invention will be explained in detail by giving examples.

Example 1: A 0.9 m thick veneer of lauan was coated with dye (A(5
) 289) for 4 hours to obtain a first material veneer. In addition, a 0.8 m thick agathis veneer was dyed with a 0.281 solution of the same dye for 3 hours to obtain a second material veneer. Using this first material veneer and second material veneer,
A tertiary flitch was obtained as shown in FIG. 4, and a decorative veneer 11 having a grain pattern as shown in FIG. 4 was obtained by splicing. The slice thickness of the secondary flitch 5 shown in FIG. 1 (Gl) was 0.2 m, and the slice angle of the secondary flitch 5 was 0.6'.

Example 2: A 1.1 thick veneer of Labra was dyed (PMBr
A first raw material veneer was obtained by staining with a 2.0 chloride solution (own) for 3 hours. Further, a 1.2 m thick veneer of IUS was colored with a 0.5 ratio solution of the same dye for 2 hours and 30 minutes to obtain a second material veneer. Using these first and second material veneers, the first
A decorative veneer 8 with a straight grain pattern was obtained as shown in Figures (to) to J). In addition, the secondary flitch 5 shown in FIG.
The slice thickness is 0.3 m, and the slice angle is 0.
．． It was set to 9°.

Example 3: Dye liquid (6) (0.2% PMBIack 908 and 3.0 inch A2
89) for 2 hours and 30 minutes to obtain a first material veneer. In addition, you can use other dye solutions (
A second raw material veneer was obtained by coloring for 1 hour and 50 minutes. Using these first and second material veneers, a decorative veneer 8 with a straight grain pattern was obtained as shown in FIG. In addition, the secondary flitch 5 shown in FIG.
The slice thickness was 0.25 run, and the slice angle was set to OR.

〔Effect of the invention〕

According to the present invention, it is possible to express a non-uniform concentrated conduit portion, and it is possible to obtain a decorative veneer with a natural look and feel.

Next, a method for manufacturing a decorative veneer that makes it possible to express a pattern with large grains will be explained with reference to FIGS. 6 to 8.

Conventionally, textile printing has been mainly used to express large wood grains, but it is difficult to control the amount of dyeing solution applied, and there is a limit to the large wood grains that can be expressed.

Therefore, a plurality of material veneers were stacked in close contact with each other in a dyeing bath, and after soaking for a certain period of time, they were moved one by one to other parts of the bath and stacked.

That is, as shown in FIG. 6 (Al), first the material veneer 1
Dyeing bath 1 is carried out with multiple sheets of 3 stacked closely together.
4. Soak for an additional hour. At this time, only the surface of the uppermost veneer 13m is contacted with the dyeing liquid 15, so that it is best dyed, and that part becomes a dark color. Thereafter, the uppermost veneer 13m is transferred to another part of the same bath as shown in FIG. In this way, the 2
The veneer 13b of the row is the topmost layer, and the surface portion is darkly dyed. Thereafter, the second tier veneer 13b is stacked on top of the top veneer 13a. At this time, the top veneer 13m
The surface staining density becomes almost interrupted. Thereafter, the same operation is repeated in sequence to perform surface staining and transfer of each veneer 13 one by one. The degree of staining of each veneer 13 is 11, 1. If the immersion time is the same, the degree of staining of each veneer 13 will be approximately the same.

The material veneer 13 dyed in this way is dried, and a plurality of veneers are pressed together using an adhesive in a flat or uneven shape to obtain an assembled flitch, which is then sliced to form a decorative veneer. can express a large straight-grain pattern or a board-grain pattern with noticeable wood grain.

Next, a reference example will be given and explained.

Reference example 1: Lauan material veneer (thickness 1.0 mm)
Staining solution (0.5% solution of PM Black 90B)
6 (At) for 30 minutes.

Then, as shown in the same figure (Bl and (C)), 30
The dyeing process was repeated for minutes at a time to complete the dyeing.

This is dried, then made into a flat laminated flitch, and sliced into a decorative veneer 16 with a straight grain pattern as shown in Fig. 7.
I got it. This item had a large wood grain pattern.

Reference example 2: Agatis material veneer (thickness 1.5 m) (
9) Add staining solution (PM Yellow 0.3 and A2
6 (At) for 30 minutes.Then, the same figure (Bl and (C)
9 for 30 minutes while transferring the veneers one by one as shown in step 1.
The immersion dyeing was repeated for 40 minutes, then 40 minutes. The decorative veneer 1 is then dried and made into a laminated flitch with an uneven pattern, which is then sliced to create a large straight-grained pattern as shown in Figure 8.
I got a 7.

Reference example 3: lauan material veneer (thickness 1.2 stitches)
The staining solution (A 298 0.3
5% solution) for 20 minutes, and then dyeing was carried out repeatedly in a 30-minute cycle in the same manner as in Reference Example 1. After dyeing,
The stacked veneers were directly coated with another staining solution (PM Black).
K 908 (0.031 solution) and dyeing was carried out in the same manner with a 10 minute cycle. This was made into a laminated flitch in the same manner as in Reference Example 1, and then spliced to obtain a decorative veneer with a large straight grain pattern.

Reference example 4: The veneers that were dyed for the first time in reference example 3 were stacked as they were, and the whole was reversed, and the order of transferring the veneers was the same as the first time (10). Dyeing was carried out in the same manner as in Reference Example 3 except that the undyed back surface became the front surface. One side of the dyed veneer became A289 with a strong reddish tinge, and the other side became a strong blackish side.

This was carried out in the same manner as in Reference Example 2 to obtain a decorative veneer with a grain pattern.

Another method of dyeing veneer material for decorative veneer will be explained.

In other words, in this dyeing method, the material veneer is immersed in a dyeing solution of a low concentration and then a dyeing solution of a high concentration in order to achieve a uniform dyeing process with no uneven color. This is how you get the board.

FIG. 9 shows the dyeing process used in this method, in which a certain number of raw material veneers 19 are placed in a dyeing basket 18 via a spacer 20 and immersed in a dyeing bath 21. For dyeing, the initial concentration of the dye is set to 0↑ or around the conveyance path concentration, and the dye concentration is gradually increased to h<.

Next, a reference example will be given and explained.

Reference example 5: A veneer of Agatis 1.5 cotton material was placed in a dyeing basket through a spacer, and the dye (A 289 ) concentration was sequentially 0.05, 0.1%, 0.2%, and 0.3. '4.0
- Dyed veneers were obtained by dyeing in 4-inch and 0.5-inch dye baths for 30 minutes each. The color tone uniformity throughout the interior of the veneer was higher than that of the veneer that was dyed for 3 hours from the beginning in a dyeing bath with a concentration of ij:o, ss.

Reference example 6: A 1.0-inch thick veneer of Ragwo was placed in a dyeing basket through a spacer and dyed (PM Black 908).
A stained veneer was obtained by staining for 1 hour each with staining solutions having concentrations of 0.5%, 1.0%, 2.0%, 2.5%, and 5.0%, respectively. This veneer is made in the same manner as in step 5.
The color tone uniformity throughout the interior was higher than that obtained by dyeing for 6 hours at a concentration of 0.

Reference example 7: Same as reference example 5, Ius's 0.8■
Using a thick veneer, dye in four dyeing baths with the following dye concentrations in sequence:
Each minute was stained.

(Reception: Density) The obtained dyed veneer had higher color tone uniformity from the beginning to the inside than the one that was multiplied in the fourth dyeing bath in the above table for 2 hours and 40 minutes.

Reference example 8: Same as reference example 5, agathis 1, 0
Using m-thick veneer, 3 dye baths with the following dye concentrations were used in sequence.
It was stained for 0 minutes.

(Excellent; Density) The obtained dyed veneer had higher color tone uniformity from the beginning to the inside than the one dyed for 2 hours with the fourth blended dye in the above table.

[Brief explanation of drawings]

FIG. 1 is a process explanatory diagram of one embodiment of the present invention, FIG. 2 is another process explanatory diagram of the tertiary flitch for obtaining a grain pattern, and FIG.
Figures and @4 are plan views showing decorative veneers with straight-grain pattern and board (13) day pattern, Figure 5 is a plan view of conventional decorative veneers, and Figure 6 shows the dyeing treatment method for raw veneers. The process explanatory drawings, FIGS. 7 and 8 are plan views showing the obtained decorative veneers with straight-grained and board-grained patterns, and FIG. 9 is an explanatory drawing showing another dyeing method. 1... First material veneer, 2... Second material veneer, 3
...1st assembled flitch, 4...1 missing splice veneer,
5...Second laminated flitch, 6...Second slice veneer, 7...Third flitch, 8.11...Decorative veneer, 9
... Centralized conduit section (14) Fig. 3 Fig. 4 %'J ('l') (y) 11 Fig. 7 Fig. 8 Fig. 12-

Claims (1)

[Claims] A plurality of veneers of the first material are laminated with adhesive and bonded by pressure to obtain a primary assembly flitch, and this is sliced from a direction almost perpendicular to the laminated surface to create a primary flitch for expressing a concentrated conduit section. The first sliced veneer is combined with a second raw material veneer, laminated and bonded by pressure to obtain a secondary assembled flitch, which is then tilted at a predetermined inclination angle with respect to the laminated surface. The second sliced veneer is again combined with the second material veneer, laminated and pressure-bonded to obtain a tertiary assembled flitch, and this is sliced. IM manufacturing method of decorative veneer including the step of.