JPS6327188B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board having a three-dimensional block pattern on its surface, which is suitable for building materials such as wall materials, various furniture surface materials, and other decorative boards, and a method for manufacturing the same.

Conventionally, in order to manufacture this type of decorative board, the second
As shown in the figure, after applying adhesive to base plate a, veneer b is bonded by polymerization, then grooves d are cut on the surface of the veneer using a router c to create a desired pattern, and the surface is painted. There is a known method, but this method requires cutting with a router, which takes a long time and is not productive for forming complex patterns.Furthermore, only a monotonous pattern can be obtained. There is a drawback.

Another method is to arrange and glue multiple pre-chamfered pieces on a base plate coated with adhesive in a parquet style, but it is also possible to arrange the pieces uniformly on a large number of base plates. It is difficult to do this, resulting in variations in the product, and since the pieces are chamfered, the adhesive oozes out from the joints between the pieces when the pieces are bonded together, impairing the cosmetic properties.

In order to eliminate such drawbacks, the present invention arranges and fixes a plurality of veneer pieces in a block-like pattern on a base plate via an adhesive sheet made of a thermosetting resin-impregnated sheet, and also forms a block-like pattern. The pattern is
A desired block-like printed pattern was prepared in advance on the surface of the adhesive sheet, and the pieces were obtained by arranging veneer pieces of a size that matched the shape of each part of this printed pattern, and thus placed on the adhesive sheet. To provide a decorative board and a method for manufacturing the same, characterized in that the veneer piece is bonded to the base plate via an adhesive sheet by heating and pressing the veneer piece together with the base plate.

An embodiment of the present invention will be described with reference to the drawings. A plurality of decorative veneer pieces 3, 3...
... 3 in a block-like pattern, a sheet with a block-like pattern printed 4 on its surface is used as the adhesive sheet 2, and a sheet having an appropriate thickness is used as the decorative veneer piece 3. A plate cut into a desired shape and size matching each portion 4a, 4b of the printed pattern 4 is used.

For example, if the printed pattern 4 is a block pattern that is a combination of a rectangular pattern portion 4a and a triangular pattern portion 4b as shown in the figure, the rectangular pattern portion 4a
A veneer piece 3a with the same shape that matches the veneer piece 3a and a veneer piece 3 with the same shape that matches the triangular pattern portion 4b.
This is to create multiple copies of ``b'' and ``b''.

Further, the edges on the front side of these veneer pieces 3 are chamfered and cut into a desired cross-sectional shape to form an inclined end face 5. This inclined end surface 5 is provided on all four sides, that is, on the entire circumference or on any of the four sides,
Various end face shapes can be adopted for the cutting shape, such as a flat shape cut at an angle of 45 degrees in the vertical direction, a rounded shape, and a step-shaped shape.

On the back side of each veneer piece 3 formed in this way, an adhesive substance 6 such as a rubber adhesive is applied in spots except for the outer periphery, and then each part 4a of the printed pattern 4 of the adhesive sheet 2 is applied. , 4b with adhesive material 6.
Temporarily adhere to the respective pattern portions 4a and 4b by using. At this time, since the adhesive substance 6 is not applied to the outer periphery of the veneer piece 3, it will not ooze out from the joints when the printed pattern 4 is formed.

Note that the adhesive sheet 2 used is, for example, paper impregnated with a thermosetting resin such as melamine resin and dried.

Next, the adhesive sheet 2 is placed on the base plate 1, which has substantially the same planar shape as the adhesive sheet 2.

In this case, the printed pattern 4 of the adhesive sheet 2 described above
The construction work of the veneer piece 3 is carried out after the adhesive sheet 2 is placed on the base plate 1 for ease of work, but it may be done before the adhesive sheet 2 is placed on the base plate 1.

In this way, the adhesive sheet 2 is placed on the base plate 1,
After arranging the veneer pieces 3 in a block-like pattern on the surface of the adhesive sheet 2, they are inserted and placed between the upper and lower hot plates of the hot press 7 and heated and pressurized, so that the thermosetting resin of the adhesive sheet 2 is temporarily softened. It melts and adheres to the back surface of each veneer piece 3 and the front surface of the base plate 1, and then hardens in that state so that the veneer piece 3 is integrally adhered to the base plate 1 via the adhesive sheet 2.

Thereafter, the surface of the veneer piece 3 fixed on the base plate 1 in a block-like pattern is sanded, and then the surface is finished by painting.

As described above, in the present invention, after an adhesive sheet made of a thermosetting resin-impregnated sheet with a block-like pattern printed on its surface is placed on a base plate, the end face is cut into an appropriate chamfer shape and the block-like pattern is cut. Multiple veneer pieces formed to a size that matches the shape of each part of the pattern are placed and fixed in accordance with each part of the block-like pattern, and then the base plate, adhesive sheet, and veneer piece are integrated. Since this relates to a method for manufacturing a decorative laminate, which is characterized by bonding veneer pieces onto a base plate via an adhesive sheet by heating and pressurizing, a block-shaped printed pattern is provided on the surface of the adhesive sheet in advance, Since veneer pieces of a size matching the shape of each part of this printed pattern are placed on the printed pattern,
Mechanism of veneer work can be done easily and accurately, and it is suitable for mass production of decorative laminates with a uniform three-dimensional block pattern.Moreover, even if the veneer piece has a complicated block pattern, it is possible to simply place the veneer piece in the pattern area. It is easy to set up because all you have to do is arrange them while matching them. Since a block-like pattern is simply formed using veneer pieces, by appropriately changing the coloring material and resin of each veneer piece, it is possible to form a block-like pattern with a wide variety of variations, and also to create a T-shaped pattern. Grooves in groove-like parts can also be configured sharply.

Furthermore, since the groove spacing between the veneer pieces can be set appropriately using the block-like printed pattern, a three-dimensional appearance with rich design can be obtained, and since the groove bottom is covered with an impregnated sheet layer, Even if the surface of the base plate is not painted, it will maintain its beauty for a long time.

Furthermore, since the adhesive sheet is made of a thermosetting resin-impregnated sheet, it is possible to firmly integrate the veneer pieces onto the base plate through the adhesive sheet by applying heat and pressure. Since the adhesive does not seep between the pieces, a decorative board with a good appearance can be obtained.

Also, when assembling veneer pieces onto adhesive sheets,
Temporary adhesion is possible by applying an adhesive substance to the back of the piece, making it easier to handle without shifting the arrangement pattern of the veneer pieces, and maintaining an accurate pattern even when bonded under heat and pressure. be.

[Brief explanation of the drawing]

FIG. 1 is a manufacturing process diagram showing an embodiment of the present invention;
FIG. 2 is a manufacturing process diagram of a conventional method. 1... base plate, 2... adhesive sheet, 3... veneer piece, 4... block-like printed pattern, 6... adhesive substance.

Claims (1)

[Scope of Claims] 1. An adhesive sheet made of a thermosetting resin-impregnated sheet with a block-like pattern printed on the surface arranged on a base plate, and an end face cut into an appropriate shape on the adhesive sheet, and The veneer pieces, which are formed in a size that matches the shape of each part of the block-like pattern and arranged to match each part of the block-like pattern, are bonded together with the base plate by heat and pressure. A decorative board that is characterized by its texture. 2. After placing an adhesive sheet made of a thermosetting resin-impregnated sheet with a block-like pattern printed on its surface on a base plate, the end face is cut into an appropriate chamfer shape and the shape of each part of the block-like pattern is cut. A plurality of veneer pieces formed to matching sizes are arranged and fixed in accordance with each part of the block-like pattern, and then the base plate and adhesive sheet veneer pieces are heated and pressed together and placed on the base plate. A method for producing a decorative board, which comprises bonding veneer pieces via an adhesive sheet. 3. Claims characterized in that each veneer piece is fixed to the block-like pattern portion of the adhesive sheet by applying an adhesive substance to the back surface of each veneer piece at a proper location except for the peripheral area, and using this adhesive substance. 2. A method for producing a decorative board according to item 2.