JPS6357202A - Manufacture of line-pattern decorative veneer - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a decorative veneer having a line pattern between assembled wood grain patterns.

[Prior Art] Conventionally, decorative veneers in the shape of lines or brickwork as shown in Figures 4 and 5 have been produced by hand-pasting small veneers one by one onto a substrate such as plywood, and then Grooves were created by cutting the joints of the veneer with a knife, which was a very time-consuming process. Therefore, after gluing together small flitches cut to desired dimensions to make a large flitch, and then peeling off the surface of the flitch and attaching the decorative veneer obtained to the substrate,
The method used was to create grooves along the assembled parts.

[Problems to be solved by the invention] However, as for groove processing, as in the past, cutting is performed along the adhesive part of the decorative veneer, so the assembly of small flitches requires sufficient linearity, and In the case of a brickwork-like pattern, it is extremely difficult to create grooves in the short side direction of small flitches, which must be done manually or mechanically using a multi-axis NC router, which requires expensive equipment. was necessary.

[Means for Solving the Problems] Therefore, in this invention, in order to solve the above problems,
When made into a decorative veneer, we have completed a method for manufacturing a decorative veneer that allows grooves to be easily formed in both the vertical and horizontal directions at the joints of the small flitches that form the veneer. In the method of manufacturing a decorative veneer by bonding each other through an adhesive to create a flitch assembly, and then peeling off the adhesive layer of the flitch in the direction in which it becomes a pattern, when assembling small flitches, concentric flitches are The present invention relates to a method for manufacturing a line pattern decorative veneer in which a sheet-like material having a hardness different from that of wood and being cuttable with a knife is interposed between small flitches.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings that serve as examples.

FIG. 1 is a perspective view showing a flitch according to an embodiment of the present invention, FIG. 2 is a recessed line pattern, and FIG. 3 is a sectional view showing a decorative veneer with a protruding line pattern.

1 in the figure shows a small flitch made of wood.
It is made by cutting zelkova, cedar, pine, etc. into blocks of brick size or even smaller size. Incidentally, it may be allowed to dry between small flitches, but it is preferable to maintain the water content at a high moisture content above the fiber saturation point, since the dimensions can be maintained accurately and cutting work can be facilitated.

Note that the small flitch 1 is usually finished with a smooth adhesive surface using a plane or a planer.

Next, a sheet-like material 2 having a certain thickness is interposed between the concentric flitches 1, and the flitches are joined together using an adhesive as shown in FIG. 1 to form an assembled flitch.

The sheet material 2 can be cut with a blade such as a slicer and has uniform hardness throughout, such as a synthetic resin sheet such as a vinyl chloride resin sheet, a polyethylene resin sheet, a polyester resin sheet, or a rubber sheet. Preferably, the hardness of the sheet-like material 2 itself can be freely adjusted to some extent.

The hardness of the sheet-like material 2 is adjusted by the type and amount of plasticizer added to the resin.

The adhesive for bonding the small flitch 1 and the sheet material 2 may include -liquid type moisture curing type, two-liquid type urethane resin, epoxy resin, phenol resin, resorcinol resin, vinyl acetate resin, acrylic resin, etc. Any adhesive can be used as long as it can bond wood and synthetic resin, wood and rubber, wood and paper, etc., and is hard enough not to damage the knife during scraping.

A flitch assembly 3 of a desired size is formed by pressing and bonding the flitch assembly 3 through the sheet material 2 between the small flitches 1 using the above adhesive.
Create.

Next, the flitch assembly 3 is cut to a thickness of about 0.2 to 3.0 mm from the direction in which the adhesive layer forms the pattern using a cutting machine such as a slicer or a half rotary to obtain a line pattern decorative veneer 4.

[Function] In this invention, the above configuration is adopted because when cutting the assembled flitch 3, if the hardness of the sheet-like material 2 interposed between the small flitches 1 is softer than the wood of the flitch 1, the cutting Since the cutting force at the time is smaller in the sheet-like material 2 than in the wood part, it is cut deeper than the wood part, and the sheet-like material 2 itself is also compressed and cut in a state where the thickness is thinner than normal. , after that, the sheet-like material 2 portion in the decorative veneer 4 recovers to its normal state, so the decorative veneer 4
Two portions of the sheet-like material inside are recessed larger than the wood portion to form a groove-like recess.

On the other hand, if the hardness of the sheet-like material 2 is higher than the wood of the flitch 1 of No. J'1, the opposite phenomenon to the above will occur, and the sheet-like material 2 will protrude more than the decorative veneer 4, creating a convex line. By forming.

[Example] Examples of this invention will be described below.

Example 1 Wood was cut from beech logs so that the grain appears on the surface 1
A black soft vinyl chloride sheet with a thickness of 1 mm was placed between the small flitches having a moisture content above the am saturation point in the longitudinal direction of the flitch (see Figure 4), and then assembled with a moisture-curing urethane resin adhesive. Then, a flitch with a width of 32 cm and a length of 190 cm was created.

Next, the surface of the assembled flitch was cut to a thickness of 2II1 m using a commonly used slicer to obtain a decorative veneer with the desired line pattern in which the vinyl chloride sheet portion was more concave than the wood portion.

Example 2 A thin flitch with a thickness of 0 is placed between small flitches having a moisture content above the saturation point of fibers cut from cedar logs so that the grain appears on the surface.
．． A 5 mm brown semi-rigid polyurethane resin sheet was assembled at each joint of the small flitch (see Figure 5), assembled and compressed with a moisture-curing urethane resin adhesive, and made into a sheet with a width of 32 cm.
An assembled flitch with a length of 190 cm and a length of 190 cm was made. Next, the surface of the assembled flitch was cut to a thickness of 1 mm using a commonly used slicer to obtain a decorative veneer with the desired line pattern in which the urethane resin sheet portion was more convex than the wood portion.

[Effects of the Invention] As described above, in the decorative board of the present invention, when assembling small flitches, a sheet-like material having a hardness different from that of wood is interposed at the joint part, so that the adhesive for the assembled flitches is By simply cutting the layers in the direction of the pattern, the sheet-like part is recessed from the wood part, or a three-dimensional decorative veneer with a protruding line pattern can be created without significantly increasing the number of processing steps and without requiring a huge capital investment. It can be provided without any

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a flitch according to an embodiment of the present invention, FIG. 2 is a recessed line pattern, and FIG. 3 is a sectional view showing a decorative veneer with a protruding line pattern.

Claims (1)

[Claims] 1. A method of manufacturing a decorative veneer by bonding small flitches together with an adhesive to create a flitch assembly, and then peeling off the flitch assembly in the direction in which the adhesive layer forms a pattern. In,
A method for manufacturing line pattern decorative veneer, which comprises interposing a sheet-like material between the small flitches, which has a different hardness compared to the wood of the same small flitches and can be cut with a knife, in assembling the small flitches. . 2. The method for manufacturing a line pattern decorative veneer according to claim 1, wherein the sheet material has a hardness different from that of wood, and the hardness of the sheet material is softer than that of the same wood. 3. The method for producing a line pattern decorative veneer according to claim 1, wherein the sheet-like material has a hardness different from that of wood, and the hardness of the sheet material is harder than that of the same wood.