JPS6087007A - 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 producing a decorative veneer that has a natural feel.

[Background technology]

As shown in Fig. 1, a plurality of rotary veneers or sliced hedges are laminated with colored adhesive, pressed and glued together to obtain an IJ+7chi2t- In the conventional manufacturing method of obtaining the decorative veneer 3 by slicing the decorative veneer 3, the summer wood portion 4 formed on the board surface of the decorative veneer 3 is expressed by the colored adhesive, but the width of the summer wood portion 40 is Therefore, in place of the previous 1vi3 colored adhesive, it is possible to use a 7-layer adhesive such as poufsnakfishim, woven fabric, non-woven fabric, resin paper, paper, etc.
A sheet-like material 5vi was attached to the surface of the material veneer 1, and the wide summer material portion 4 was expressed with this sheet-like material.

In Figure 2, two veneers 1 (width 200 rrrrrn) are arranged side by side at a predetermined interval (20 to 30 times 8 degrees), and a wide sheet-like material 5 (@ about 430 mm) is placed on top of these veneers 1. As shown in Fig. 3, these veneers 1 are laminated and pressed into each mold part 7゜7' of a two-row type with a groove 6 in the center. It was glued together and had some dents.

According to this method, it is possible to produce multiple rows of F'JN7 chips in one press operation, improving productivity.
A wide summer material portion 4'1 can be expressed.

However, this method of combining the sheet-like material 5 and the material veneer 1 has the following problems.

(1) There is no variation in the width of the summer wood as seen in natural tree species, and the width is uniform.

(2) Since the sheet-like material 5 and the material veneer 1 are colored separately in advance in the previous process, the spring wood portion 8 and the summer wood portion 4 have different tones, which gives a strange feeling. For example, when nonwoven fabric or paper is used as the sheet material 5, the material veneer 1 is usually colored with a water-soluble coloring agent, whereas in the case of nonwoven fabric, coloring with a water-soluble i coloring agent reduces the strength. However, oil-soluble colorants were used to prevent paper breakage. Therefore, it was difficult to create similar colors compared to the 10 veneer tones.

[Purpose of the invention]

The present invention aims to provide a method for manufacturing a decorative veneer in which the spring wood portion and the summer wood portion expressed on the board surface are unified in similar color tones, and the summer wood portion is provided with variations in width. purpose.

[Disclosure of the invention]

The method for producing a decorative veneer of the present invention involves applying a first adhesive onto an uncolored veneer, and then inserting uncolored sheet pieces (for example, a sheet of nonwoven fabric) with good coloring properties onto the material veneer at intervals. The process of obtaining a composite veneer by pressing and gluing it side by side on a board,
A step of laminating, pressing and gluing a plurality of composite veneers via an adhesive of gold foil 2 to obtain a laminated frit 9, and wiping the frit to obtain a sliced veneer, and coloring the sliced veneer. This process includes the step of applying a coloring agent to the entire surface of the sliced veneer.

An embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. That is, this decorative veneer manufacturing method consists of the following steps.

(1) Composite process: As shown in Figure 4, a colored adhesive 10 (first 11 adhesive) is applied to the top surface of the bleached uncolored material veneer 9, and then a suitable size adhesive is applied to the top surface. Sacar I
After arranging the unpurified nonwoven fabric pieces 11 at appropriate intervals, they are pressed and bonded together to obtain a composite veneer 12 in which the thickness of the nonwoven fabric pieces 11 and the adhesive part 0 are different.

(Z) Pre-gluing process - A plurality of composite veneers 12 are laminated and pressed together in a concavo-convex mold as shown in FIG. 1 through adhesive (second # adhesive). I [and obtain the assembled Furiguchi.

(3) Slicing step: The above-mentioned assembled veneer is sliced in a predetermined direction to obtain sliced veneers with a grain pattern.

However, in this state, since a bleached veneer of material and an uncolored piece of nonwoven fabric are used, the grain pattern is not clear, and there is a slight difference in the coloring. It is only possible to distinguish the grain pattern by using the S adhesive.

(4) Coloring process A coloring agent is applied to the surface of the double-sided veneer, and if necessary, it is added to the decorative veneer 13' (see FIG. 5).
I get it. The nonwoven fabric piece portion is colored in a deep color by the coloring agent due to its excellent coloring properties, thereby forming the summer material portion 14. On the other hand, the material veneer portion is colored in a light color to form a spring material portion 15.

In this way, since the summer wood portion 14 and the spring wood portion 15 are expressed using one coloring agent, the color tone becomes similar and approximates the color tone of the natural tree species. Furthermore, the nonwoven fabric piece 11v
By adhering and compositing on the material veneer 9 at i-intervals, variations are imparted to the width of the summer material portion 15, resulting in a more natural feel.

An embodiment of the pond of this invention will be described with reference to FIGS. 6 and 7. That is, in this method of manufacturing decorative veneer, a concealing adhesive is used in place of the colored adhesive in the compositing step to combine the material veneer and the nonwoven fabric piece, and as shown in FIG. 14' with discontinuous variations.

The hiding adhesive is a mixture of a covering agent and a hiding agent such as TiO2 and ZNO. By using the concealing adhesive in this way, as shown in FIG. The shadow of one veneer 9'a is prevented from appearing on the other veneer 9'b. As a result, the direct joints (boundaries) between the material veneers become unclear, and the summer wood part 14' partially disappears and becomes intermittent. Must match the color. The pond is similar to the previous embodiment.

〔Effect of the invention〕

According to this invention, the color tones of the spring wood portion and the summer wood portion expressed on the board surface are similar colors, and the width of the summer wood portion also varies! !
This has the effect that it is possible to obtain a decorative veneer with an extremely natural look and feel.

Next, a method for manufacturing a decorative pond veneer will be explained with reference to FIGS. 8 to 15. That is, in this method, as shown in FIG. 8, a spindle-shaped small hole 19 is formed over the entire surface of a material veneer 17 obtained by coloring and drying a rotary veneer or a sliced veneer through the entire punching die 18. It is. The small hole 19 has a length L y! as shown in FIG. tl 1～
3 tears, width W 7: 110.5-1.5 m
It is. The small hole 19 is formed by diagonally punching the raw material veneer 17 with a cylindrical blade 21 through the small hole 2o of the mold 18, as shown in FIGS. 10 and 11.

The punched small holes 191C are filled with colored adhesive 22 and dried and solidified as shown in FIG. This veneer 17 is laminated on a concave-convex mold 23 and pressed and bonded to form a frit 24, and the frit edge 24 is sawn and sliced to obtain a decorative veneer 25.

As shown in FIG. 13, the obtained decorative veneer 25 has spots 26 on its grain pattern, and can express the unique grain of beech wood. The decorative veneer 25' with a straight grain pattern obtained by changing the slicing direction has spots 27 called so-called tiger spots.

Reference examples are given below.

Material veneer: White Canary (300X 600
X13 small hole: length L is 2 trrpn, width W is 1
The vertical and horizontal lengths H shown in Figure 15 are both 5 + m at intervals.Adhesive: A urea-based adhesive mixed with a coloring agent is used for filling small holes and as an adhesive for veneers8! l: Uneven type (width 350mm, length 700 tran
) Pressure: l 5 phantom/d cold pressure

[Brief explanation of the drawings] Fig. 1 is a process explanatory diagram showing a normal method for manufacturing decorative veneers;
Fig. 2 is a cross-sectional view of a composite veneer used in another method for manufacturing decorative veneers using sheet-like materials, Fig. 3 is a cross-sectional view showing the pre-setting process, and Fig. 4 is a cross-sectional view of the composite veneer used in another method for manufacturing decorative veneers using sheet-like materials. ! FIG. 5 is a plan view of a decorative veneer obtained by using the composite veneer tone, and FIG. A plan view of the board, FIG. 7 is a sectional view taken along the line ■-■, FIG. 8 is an explanatory diagram showing the small hole forming step in another method for manufacturing decorative veneers, FIG. 9 is a plan view of the small hole, and FIG. 10 is a plan view of the board. Figures 11 and 11 are explanatory diagrams of a method for forming small holes, Figure 12 is a process diagram showing a method for manufacturing a decorative table board using a veneer of material in which small holes are formed, and Figures 13 and 14 are illustrations of the method for forming small holes. FIG. 15, a plan view of the decorative veneer, is an explanatory diagram showing the spacing of small holes in a reference example. 9...Material veneer, lo...Colored adhesive (first adhesive), 11...Nonwoven fabric piece (sheet piece), 1'2-°
° Composite veneer, 13... Decorative veneer, 14... Summer wood section,
16... Concealing adhesive layer u:H:t-nimi-1 Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Figure 15 Figure 14

Claims (3)

[Claims] (1) Apply the first adhesive onto an uncolored veneer of the material, and then arrange the uncolored pieces on the veneer of the material at intervals and press and adhere them to form a composite veneer. a step of obtaining a board; a step of laminating a plurality of composite veneers via a second adhesive, pressing and adhering them to obtain a composite frit; and wiping this fritch to obtain a sliced veneer; What is the process of applying an HA agent to the SVC veneer and coloring the surface of the SVC veneer? A method for manufacturing decorative veneers, including: (2) The method for manufacturing a decorative veneer according to claim (1), wherein the first adhesive is a colored adhesive. (3) The method for manufacturing a decorative veneer according to claim (1), wherein the first adhesive is a concealing adhesive containing a concealing subtone.