JPS6087006A - Manufacture of aggregate 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 1] The present invention relates to a method for manufacturing a laminated veneer, and more specifically, a method for producing a laminated veneer, and more specifically, a method for manufacturing a laminated veneer, in which veneers colored in the summer wood color and the spring wood color found in natural wood are alternately laminated. This invention relates to a method of producing a laminated veneer in which parts of both veneers, which are not colored in mutually different colors, appear as a wood grain pattern on the cut surface by cutting out a laminated veneer made of 41 laminated veneers.

[Background technology 1] In general, in order to artificially create a veneer with a wood grain pattern based on the arrangement of summer wood and spring wood, as seen in natural wood, it is necessary to dye the wood in summer wood color and spring wood color respectively. There is a method of laminating the two types of veneers alternately to form a 7-rich assembly, and cutting the resulting 7-rich veneer so that both veneers appear alternately in a wood grain pattern on the cut surface. It has been adopted.

However, according to this method, the veneers used to express the summer wood are uniformly dyed throughout, so the surface of the resulting laminated veneer has a uniform density. The problem was that it could only express the summer wood part of a tree, and the problem was that it was impossible to make a pattern similar to that of natural wood, where differences in shading can be seen even in the summer wood part of one annual ring.

[Objective of the Invention 1 The present invention has been made in view of the above-mentioned points, and its purpose is to improve the color of the summer wood color appearing on the surface of the artificially produced laminated veneer. To provide a method for producing a laminated veneer that can express differences in shading and create a wood grain pattern that closely resembles natural wood.

[Disclosure 1 of the Invention In the method for manufacturing a laminated veneer according to the present invention, two or more types of material veneers coated with adhesives having different stainability with dyes are used, and these veneers are mixed and laminated. A part of 7-rich was cut, and the cut surface was mixed with a first dyed band impregnated with an adhesive with high dyeability and a second dyed band impregnated with an adhesive with low dyeability. Create sliced veneers that appear approximately parallel to each other, then naturalize each sliced veneer.

The first dyed band is finished in a dark color by dyeing it in the summer wood color found in wood, and the second dyed band is finished in a light color, and the spring wood colored veneer is colored in the spring wood color seen in natural wood. The above-mentioned sliced veneers are laminated alternately, and both veneers are assembled in a curved manner along the longitudinal direction of each of the dyed bands to form a secondary plinth, and then this secondary flitch is formed. A laminated veneer that expresses a wood grain pattern by cutting the secondary flitch across the interface between the two car boards and using a part of the sliced veneer and a part of the spring wood color veneer that appear on the cut surface. Discloses a method for obtaining a veneer surface, which creates a difference in shading between a first dyed zone dyed in a dark color and a second dyed zone dyed in a light color in a sliced veneer. is expressed in

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 schematically shows the manufacturing process of a laminated veneer according to the present invention. First, a plurality of raw material veneers 1 are assembled to form a part 7 rich 2, and then this part 7 After cutting out a plurality of sliced veneers 3 from Rich 2, each sliced veneer 3 was dyed in a summer wood color, and the spring wood colored veneer 4 was separately dyed in a spring wood color, and the above-mentioned veneer 4 was dyed in a summer wood color. The sliced veneers 3 are alternately laminated and assembled into a curved shape to form a secondary flitch 5, and finally, by slicing the secondary flitch 5, the spring wood color uniformity appearing on the cut surface is A laminated veneer 10 is obtained in which a part of the board 4 is dyed with a spring wood color part 7 in a summer wood color, and a part of the sliced veneer 3 expresses a summer wood color part 8. As the material veneer 1, rotary veneer or sliced veneer is used,
A plurality of veneers of material 1 are laminated using different types of adhesives that have different dyeability, that is, different dye uptake performance when subjected to dyeing treatment, and the same dye can have different shading. A separate adhesive is applied to one side of each material, and the material veneer 1 is then mixed and laminated, and pressed between flat plate molds to form the above-mentioned rectangular parallelepiped-shaped flitch 2. The sliced veneer 3 is partially cut out from the flitch 2 by cutting along a plane that crosses the interface between the individual raw material veneers 1 in the flitch 2, and the sliced veneer 3 is cut out from the flitch 2 along a plane that crosses the interface between the raw material veneers 1 on the cut surface. Impregnated adhesive bands appear in a form that is arranged approximately parallel to each other, with a first dyeing band 11 impregnated with an adhesive with high dyeability and a second dyeing band 11 impregnated with an adhesive with low dyeability. Obi 12 and Obi 12 are mixed together and lined up. In this way, a plurality of sliced veneers 3 cut out from the second flitch 2 are dyed in the summer wood color seen in natural wood, so that the first dyed band 11 becomes dark color and the second dyed band 12 is finished in a light color. The secondary 7-rich 5 is made by alternately laminating sliced veneers 3 dyed in summer wood color with this difference in shading and spring wood color veneers 4 separately dyed in the spring wood color found in natural wood. As shown in the figure, the dyeing bands 11 and 12 are pressed between a concave die 13 and a convex die 14 so as to be curved along the direction in which the dyed bands 11 and 12 are lined up. The final product, the laminated veneer 10, is cut out from this secondary 7-rich 5. For example, as shown in the figure, the front and back direction of the secondary 7-rich 5 (that is, the longitudinal direction of each dyed band)
Then, along the slope P including the line segment that is sloped and is approximately horizontal in the left and right direction (the direction in which each dyed band is lined up), the secondary 7 rich 5
By cutting out the sliced veneer 3, a part of the sliced veneer 3 dyed in the summer wood color and a part of the spring wood colored veneer 4 appear in a curved shape on the cut surface, as shown in FIG. A board pattern is expressed. In this case, as mentioned above, the sliced veneer 3 dyed in summer wood color has a difference in shading due to the difference in dyeability of the adhesive used for the material veneer 1, so this dark color As shown in the figure, the first dyed band 11 finished in a light color and the second dyed band 12 finished in a light color form a single stripe expressing the summer wood colored area on the surface of the laminated veneer 10. This creates a natural wood-like pattern with differences in shading even in the summer wood of a single annual ring.

<Example> A plurality of rotary veneers of china wood with a thickness of 1.0 L and 11111 were prepared and dyed in the color of pine spring wood, and two types of adhesives with different dye staining properties were used, and the one with the higher dye staining property was dyed. Two veneers coated with the same adhesive on one side and one veneer coated on the other side with an adhesive with lower dyeing properties are laminated in order and pressed on a flat base. Part 7 Rich was assembled, and the obtained partial flinch was made to have a thickness of 0.3+nl11 so that 2.3 dyed bands with a width of 30 cm formed by impregnation with each of the above adhesives appeared on the cut surface of the obtained part flinch. Q. Cut out slices of veneer with a thickness of 4ml0, dye each slice veneer in the color of summer wood of pine, then dry to a moisture content of 10% or less, then dye it in the color of spring wood and dry to a water content of 10% or less. 1, ()mm
After applying modified melamine adhesive at 9-10 g/shaku2 to the spring wood color veneer with a thickness of 0.810Ill and the sliced veneer stained in the above summer wood color, the spring wood color veneer and slices were applied at a rate of 9-10 g/shaku2. The veneers are laminated alternately and pressed between the concave and convex shapes so as to be curved along the direction in which the dyed bands are lined up to assemble the secondary 7-rich, and from this secondary 7-rich. By cutting out a laminated veneer with a thickness of 0.35m4n, the second
As shown in the figure, a part of the springwood-colored veneer and a part of the sliced veneer appear as a grain pattern on the surface, and the above adhesive is applied to the summerwood-colored part represented by the sliced veneer. A laminated veneer was obtained that had the appearance of a natural pine tree with differences in shading caused by differences in adhesion.

Figures 3 and below are cut out from a laminated 71-inch piece (corresponding to the secondary flitch in the above example) obtained by laminating multiple veneers dyed in summer wood color or spring wood color.
Disclosed is a method for expressing a striped pattern with fine notches like those found in natural wood in a part of the wood grain pattern appearing on the cut surface.

In the embodiment shown in FIG. 3, adhesive 21 is applied to both sides of the veneer 22 constituting the 7-rich assembly 24, and then the veneer 22 is folded back at the center to create an approximately parallel folded section 22.
3, a plurality of these veneers 22 are laminated and assembled between the concave mold 13 and the convex mold 14 in the same manner as in the above embodiment, and from the obtained assembly 7 rich 24, as shown in the figure. 1
By cutting out the laminated veneer 26 by this slicing, the stripes that appear on the cut surface and express the wood grain pattern are provided with minute notches 25 caused by the folded portions 23, and the width of the stripes representing one annual ring is increased. The appearance is more similar to natural wood due to the changes in the wood. Incidentally, a pigment may be added to the adhesive applied to the veneer, if necessary.

In the embodiment shown in FIG. 5, as a method of adding notches to the stripes corresponding to the above-mentioned annual rings, instead of forming the folded portion 23 by folding back the veneer, a plurality of strip-shaped veneers are used. An example is disclosed in which a composite veneer 31 is obtained by applying an adhesive 33 to a veneer 30 and then partially overlapping each other, and this composite veneer 31 is pressed into a flat plate shape through a release paper 34. After finishing, a plurality of veneers are laminated to form a 7-rich laminated veneer in the same manner as in the above embodiment, and the 7-rich veneer is sliced to obtain a laminated veneer with a wood grain pattern appearing on the cut surface. In this case, multiple strip-shaped veneers 3
In the process of pressing 0, traces 32 of the overlapped portions of the short and similar veneers 30 remain in the composite veneer 31, and stripes representing one annual ring appear on the surface of the laminated veneer cut from the laminated 7-rich laminated veneer 31. This trace 32 appears on the edge of the paper, creating a carved pattern similar to that of the above embodiment. In addition, in the embodiments shown in FIG. 3 and below, as disclosed in the embodiments shown in FIGS. 1 and 2, different adhesives are applied to the veneer to create different shadings. For example, the surface of the resulting laminated veneer is given color shading and notches at the same time, making it possible to express an appearance even closer to that of a natural wooden shrine. In addition, in FIG. 3 and below, an example is shown in which a cluster is formed using only veneers having folded parts 23 and traces 32 of the folded parts. The veneer with the traces of folds and folds may be dyed in one of the summer wood color and the spring wood color, and combined with a regular veneer dyed in the other color to form a 7-rich composite.

[Effects of the Invention] As described above, the present invention cuts a single-layer 7-rich piece assembled by combining two or more types of veneers coated with adhesives that have different dye staining properties, and then cuts the cut surface of the 7-rich layer. A sliced veneer is created in which a first dyed zone impregnated with an adhesive with a high dyeing property and a second dyed band impregnated with an adhesive with a low dyeability appear intermingled, and then each slice is The board is dyed in the color of summer wood, the first dyed band is finished in a dark color, and the second dyed band is finished in a phlegm color. A secondary flitch is assembled in which dyed sliced veneers are laminated alternately, and then the secondary flitch is cut and a part of the sliced veneer and a part of the spring wood colored veneer that appear on the cut surface are assembled. Since the purpose is to obtain a laminated veneer that expresses the wood grain pattern, each sliced veneer is placed within the stripes made up of the above sliced veneers, which will appear on the surface of the laminated veneer and express the summer wood color. The darkly dyed No.-
A dyed band and a second dyed band dyed in a light color appear, and it is possible to create a difference in shading in this stripe, and this difference in shading has the advantage of creating a pattern that closely resembles natural wood. .

[Brief explanation of the drawing]

Fig. 1 is a schematic process diagram showing an embodiment of the present invention, Fig. 2 is a plan view showing a laminated veneer obtained in the same manner as above, and Fig. 3 is a summer wood colored portion of a similar laminated veneer. An example of a method for making notches is shown (a schematic process diagram; FIG. 4 is a plan view of the laminated veneer obtained in the above method, and FIG. 5 is a schematic process diagram showing the other side of the method for making notches in the same manner as above). , 1 is material veneer, 2 is single layer 7 rich, 3 is sliced veneer, 4 is spring wood color veneer, 5 is secondary 7 rich, 7 is spring wood color part, 8 is summer wood color part, 10 is Laminated veneer, 11 is the first dyed band, 12 is the second dyed band. Agent Patent attorney Stone 1) Cho 7

Claims (1)

[Claims] (1) One part of the 7-rich is formed by mixing and assembling two or more types of veneers coated with adhesives that have different stainability with each other, and the next 7-rich is cut to form the same. Each cut surface is impregnated with a highly dyeable adhesive.
A plurality of sliced veneers are created in which the dyed band and a second dyed band impregnated with an adhesive with low dyeing properties are arranged in parallel to each other, and then each sliced veneer is colored in the summer wood color found in natural wood. The first dyed band is finished in a dark color, and the second dyed band is finished in a light color, and the spring wood colored veneer is colored in the spring wood color found in natural wood and the sliced veneer is dyed. Both veneers are laminated alternately and assembled in a curved manner along the direction in which each of the dyed bands are lined up to form a secondary 7-rich;
After that, cut the 4th secondary 7rich across the interface between the two car plates that make up this secondary 7rich, and then cut a portion of the sliced veneer and a portion of the spring wood colored veneer that appear on the cut surface. A method for producing a laminated veneer characterized by obtaining a laminated veneer expressing a wood grain pattern.