JPS61217243A - Decorative board - 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 fully reproduces the texture and texture of natural wood without the need for troublesome alignment of conduit patterns, annual ring patterns, and color patterns of natural wood. This relates to decorative panels that can be used. In other words, natural wood excluding color patterns related to conduit patterns and annual ring patterns, and materials with a finish color of 70 to 100% of the finish color of colored finished natural wood, as well as natural wood including uneven patterns related to conduit patterns and annual ring patterns. Layer the molds in which all the uneven patterns have been accurately formed, and apply a coloring agent such as colored paint only to all or part of the concave parts of the uneven patterns of the material, conduit patterns, and annual ring patterns. This is to store and dry the decorative board.

[Background technology 1] Conventionally, this type of decorative board is made by laminating a natural wood veneer with a thickness of 0.3 mm or more on a plywood surface made of lauan board, particle board, etc. By scraping with a plush roll, etc., uneven patterns such as annual rings and conduits are formed, and there is a high-quality natural wood decorative plywood with a texture and a high texture, but in the working environment, this occurs during the brushing process. Wood powder and dust are unhygienic to the human body, and the dust collection and treatment equipment for that dust has become large-scale.
Furthermore, it is difficult to completely collect dust, and workers are required to wear masks. In terms of productivity, the surface of the product after brushing has sharp edges and fuzz, so it is necessary to use buffing rolls and other jigs to treat the edges and fuzz, which requires a lot of effort during production. It is said that

In addition, in terms of quality, since the surface veneer is made of natural wood, there are drawbacks such as uneven wood grain pattern and uneven wood color.
Furthermore, the yield rate is low, the hardness of each log and veneer varies, and the scraping depth of the surface layer tends to be uneven during the brushing process, making management difficult, and the yield rate during the brushing process also decreases. However, it has drawbacks that lead to high costs.

As an example of the prior art of the present invention, a room-temperature-curable stamping material is placed on the uneven pattern of a manuscript made of natural wood, etc., and a stamp is directly molded from this manuscript, and the color pattern of the manuscript is printed by printing means. There is a method for obtaining a decorative board in which the color pattern and the uneven pattern match by applying it to a decorative board material and aligning and pressing a stamp against it.

Another example of prior art is a decorative sheet in which a curable resin liquid is poured onto a mold that faithfully models the uneven pattern of natural wood, and woodgrain printing is applied while the curable resin liquid is in an uncured state. are aligned and laminated on the curable resin, and after the resin has hardened, the integrated product of the cured resin and decorative sheet is peeled off from the mold.
Another method is to apply a colored paint to the entire surface of the unevenness formed on the cured resin, and then remove the convexity on the convexity before the paint hardens to screen for the appearance of the conduit pattern of natural wood.

In each of these methods, the decorative material made to look like a colored board of natural wood and the mold with the uneven pattern are aligned at their normal positions and then overlapped to match the uneven pattern and the Kurasai pattern. Among the patterns on natural wood glazes, the salt l1a pattern is so minute that it is very difficult to align the uneven pattern of the conduit pattern and the color pattern of the conduit pattern to the correct position. The reality is that it takes a great deal of work and effort, and perfect alignment is almost never achieved. For this reason, the resulting decorative plywood has a disadvantage in that the realism and aesthetic appearance of the resulting decorative plywood deteriorates, and the texture of natural wood cannot always be fully reproduced.

[Purpose of the invention]

The present invention has been made for the purpose of eliminating all such drawbacks in the prior art examples described above.

[Structure of the invention]

Prepare natural wood 1 to be replicated as shown in FIG.
Pour synthetic resin liquid for molding onto the surface of this natural wood 1,
A mold 2 is created that faithfully copies the uneven pattern on the surface of the natural wood 10.

The mold-making synthetic resin liquid is a hard type with heat resistance of 150 to 200°C after curing. (The concavo-convex pattern of the stamping die 2 is not worn out and the stamping die 2 can be used many times.) Along with this, the material 3 and the substrate 4 shown in FIG. 2 are prepared.

Material 3 is a thermoplastic sheet-like board 5 made of powdered PVC and wood powder kneaded, with a conduit pattern of natural wood 1, a color excluding the color of the annual ring pattern, and a colored finish of natural wood color 70. This is a lamination of PvC sheets 6 toned in colors ranging from 100 to 100.

The sheet film thickness of this PvC sheet 6 varies depending on the depth of the unevenness of the conduit of the natural wood 1, but is preferably 50 μm or more. The PvC sheet 6 is different from the thermoplastic sheet-like plate 5,
Any material may be used as long as it has adhesiveness and adhesion, can follow thermal expansion, mechanical bending, and can be colored. The substrate 4 is made of general lauan plywood, particle board, or the like, and has an adhesive layer 7 formed on its surface.

What is shown in FIG. 3 is the imposition of a concavo-convex pattern on the material 3 and the integral adhesion formation of the material 3 and the substrate 4.

This consists of a substrate 4 on which an adhesive layer 7 has been formed, and a material 3 that has been softened by preheating in the mold 2.
is inserted, and an uneven pattern is formed on the softened material 3 between the mold 2 and the substrate 4, and at the same time, the material 3 and the substrate 4 are bonded to the surface of the substrate 4 by the heat of the material 3, which has been softened by preheating. With the layer 7, an integral proboscis 8 is obtained by thermosetting adhesive. After the material 3 is cooled and hardened and the adhesive layer is hardened, the mold 2 is removed.

In the integrated movement 8 in which the material 3 and the substrate 4 are integrated, the PVC sheet 6 and the thermoplastic sheet-like plate 5 of the material 3 have an uneven pattern formed by the pressing die 2 that faithfully copies the uneven pattern of the natural wood 1. In particular, the PVC sheet 6 has uneven patterns of minute conduits on the plain surface, and uneven patterns with large drops and steps that cannot be covered by the five thermoplastic sheet-like PvC sheets 6 alone due to the film thickness.
While covering each other, it is possible to faithfully express the uneven pattern and ensure that the grain pattern of conduits, annual rings, etc. is extremely similar to the grain of natural wood 1.

Next, as shown in FIG.
A coloring material 9 is applied onto the uneven surface of the VC sheet 6, and before the coloring material 9 solidifies, the coloring material adhering to the convex portions of the PVC sheet 6 is removed and the coloring material 9 remaining in the concave portions of the PVC sheet 6 is dried. When solidified, the decorative board 1 has the texture of natural wood 1 due to three factors: surface irregularities as shown in FIG.
0 is obtained.

Note that the coloring material 9 may be colored by wiping with a cloth or the like, or the coloring material 9 on the convex portions may be removed using a squeegee.

Furthermore, a top coat may be applied to the surface of the decorative board [0 obtained in FIG. 4] with a transparent paint and a colored transparent paint for the purpose of finishing in complementary colors, and at the same time, the colored paint in the recessed portions may be protected.

Further, the coloring material 9 shown in FIG. 4 may be any material as long as it has adhesive properties to the PVC sheet 6.

〔Effect of the invention〕

This invention is a material in which the surface of a thermoplastic sheet-like board made of powdered PvC and wood flour is treated with a conduit pattern of natural wood and the color of the wood excluding the annual ring pattern. Layer the molds that have all the uneven patterns accurately formed, and at the same time form the uneven patterns on the material, and at the same time obtain an integrated product of the mount coated with adhesive and the material with the uneven surface patterns formed. In particular, the uneven pattern of the material obtained by shaping is particularly important because the material to be shaped is formed from a sheet-like plate and a surface layer formed on its surface. is a surface layer in which a concave-convex pattern with large drops and steps is formed on the surface of the sheet-like plate, and a concave-convex pattern such as fine conduits is formed on the surface of the concave-convex pattern formed on the sheet-like plate. The forces that form and cover each other faithfully reproduce the uneven pattern of natural wood. In particular, the concave-convex pattern, which is the directional light of the layout structure pattern of natural wood, can be similarly reproduced.

The uneven pattern on the surface obtained by shaping is because the surface layer of the material is colored with the color of natural wood before shaping, so colored paint is applied only to the concave parts of the uneven pattern obtained by shaping. By simply adhering and solidifying the material, you can obtain decorative plywood that has the conduit of natural wood and the texture and texture that includes annual ring patterns.

From the above, it is possible to form uneven patterns such as growth rings and conduits without scraping the surface of natural wood with a plush roll, etc., and to obtain a high-quality decorative board with a three-dimensional feel and texture. Ru. Workability and productivity have improved, and in terms of quality, uneven wood grain patterns, different wood colors, uneven patterns due to plush rolls, etc.
There is no irregularity in scraping depth and the yield is high, uniform quality can be ensured, management such as inspections can be reduced, work management can be significantly reduced, and manufacturing costs can be reduced.

Furthermore, there is no need to carry out troublesome alignment between the uneven pattern of the conduit pattern and the colored pattern of the fascia pattern.

The decorative board obtained above has a design close to that of natural wood, and is suitable for a wide range of uses such as high-end furniture, fittings, and building materials.

[Brief explanation of the drawing]

1 to 4 are drawings according to the present invention, and FIG.
3 and 4 are sectional views of the main parts showing the manufacturing process, and the second factor is a perspective view of the main parts same as above.

Claims (1)

[Claims] (1) A thermoplastic sheet-like plate and a PVC sheet having a conduit pattern and an annual ring pattern on the surface are polymerized on a substrate having an adhesive layer, and a coloring material is applied to the surface of the PVC sheet. Decorative materials.