JP2003094563A - Decorative board - Google Patents

Abstract

(57) [Summary] [Problem] To provide a decorative board improved in design by using a simple and inexpensive method while utilizing an original grain pattern of a wooden base material. SOLUTION: As a translucent layer 3 bonded to a wooden base material 1 via an adhesive layer 2, the semi-transparent layer 3 has a concealing property such that local color shades and knots of the wooden base material 1 are blurred to some extent, and An ink-jet printing layer 4 having the same color pattern as that of the wooden substrate 1 provided with an ink-receiving layer 5 on a paper layer having translucency enough to allow the pattern of the wooden substrate 1 to be visually recognized. And a decorative plate provided with a protective layer 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative board used for interior building materials and the like, and more particularly to a decorative board having a decorative layer formed by inkjet printing.

[0002]

2. Description of the Related Art Conventionally, decorative sheets used for building interior materials are decorative papers with a pattern pattern by gravure printing,
A decorative sheet such as a plastic film is used as a decorative layer,
Manufactured by bonding to various base materials such as plywood, medium density fiberboard (MDF), wood base material such as particle board, non-combustible board such as calcium silicate board and slate board, plastic board such as FRP and acrylic board. .

Usually, these decorative layers have a concealing property in order to conceal the pattern of the substrate itself, and the decorative pattern is designed by emphasizing the picture pattern. Especially for wood-based materials,
Although the base material itself has a wood grain pattern, it was prepared by concealing the base material pattern by providing a pattern pattern by gravure printing on a decorative paper provided with a solid printing layer as a masking layer.
Further, even when a design pattern is formed on a plastic film, it has been used by performing a treatment having a hiding property or forming a hiding layer.

As another printing method for applying a picture pattern to these various decorative layers, there is an ink jet printing method which enables simpler printing than gravure printing which requires extensive equipment.

When this ink-jet ink is used as a building material for interiors, it has an environmental problem such as VOC.
Generally, since it is a water-based type, when the decorative layer is a paper-like layer, an ink receiving layer is provided as necessary for printing. In order to improve the hiding property, a paper material containing a white turbid titanium dioxide is usually used for the paper material layer used here.

In the case of a plastic film,
As described above, since the inkjet ink is of the water-based type, it is printed so as to improve the printing performance by providing the ink receiving layer.

The ink receiving layer is formed as a layer containing an inorganic filler such as silica, colloidal silica or alumina sol as an adsorbing medium for ink jet ink.

However, even in the case of this ink jet printing, the decorative board is manufactured by providing a layer for enhancing the hiding property of the base material for various decorative layers and improving the ink absorption performance to obtain printing characteristics. It was common to do.

[0009]

The problem to be solved by the present invention is to utilize the original wood grain pattern of a wood base material while
It is an object of the present invention to provide a decorative board having improved designability by an inexpensive and simple method.

[0010]

Means for Solving the Problems The inventors of the present invention have made extensive studies as to the above-mentioned problems, and as a result, have a concealing property such as locally blurring a color difference or a knot pattern of a wood-based material, By providing a semi-transparent paper material to the extent that the pattern of the base material can be visually recognized, and applying a wood grain pattern similar to the wood base material by inkjet printing on the paper material, the wood grain pattern of the base material and the wood grain pattern of the paper material are obtained. It was found that a texture and a deep wood grain pattern can be obtained in combination, and the present invention has been completed.

That is, the present invention provides at least a wood base material,
A decorative board comprising an adhesive layer and a decorative layer, wherein at least the decorative layer comprises a translucent layer and an inkjet printing layer.

The present invention will be described in detail below with reference to the drawings. The wood base material having a wood pattern is wood,
A base material having a grain of natural wood, such as a single plate, a plywood, a sawing board, a veneer, a laminated wood, LVL (laminated veneer lumber), and OSB is suitable.

As the kind of the adhesive, various adhesives such as polyvinyl acetate type, hot melt type, EVA type and the like can be mentioned. The thickness of the adhesive does not hide the wood pattern of the base material, It is necessary to have a thickness that allows the wood grain pattern to be visually recognized when formed into a plate, and even a colored adhesive is preferable because it can ensure the above visibility if it has transparency, and it is colorless and transparent. Is particularly preferred. In addition,
Since the thickness of an ordinary adhesive layer is 20 to 50 μm, there is no particular problem in visibility.

As shown in FIG. 1, the semi-transparent layer 3 attached to the wooden base material 1 via the adhesive layer 2 has a certain degree of blurring of local color shades and knot patterns of the wooden base material 1. The paper-like layer is preferable because it has such concealing properties and is semi-transparent to the extent that the wood pattern of the wood-based substrate 1 can be visually recognized.

As such a paper-like layer, thin leaves for building materials
Paper, coated building paper, Japanese paper, unbleached paper, etc.
23-90g / m^Two Various papers commonly used in building materials
Quality materials, and their thickness is about 20-100 μm.
Yes, semi-transparent enough to visually recognize the wood grain pattern
From the point of having, it is 23 to 50 g / m as the basis weight.
^Two Is preferable, and the thickness is preferably 20 to 60 μm.
Yes.

According to the above-mentioned various paper materials, since the ink-jet ink has good absorbency and printing characteristics, printing is performed as it is to provide the ink-jet printing layer 4 and the decorative layer 6
It is also preferable that the decorative layer 6 is formed by further providing the ink receiving layer 5 and performing a treatment suitable for the ink characteristics.

Further, the semi-transparent layer 3 has a concealing property that blurs the local color shades and knot patterns of the wood-based material 1 to some extent, and is treated semi-transparently so that the wood grain pattern can be visually recognized. When using various plastic films such as polyethylene terephthalate (PET), polycarbonate, vinyl chloride, etc., by providing the ink receiving layer 5 so that the aqueous inkjet ink is easily absorbed,
The decorative layer 6 that is inkjet printed can be formed.

That is, it is only necessary that the decorative board finally obtained as a result of ink-jet printing of the paper material or the plastic film can visually recognize the original wood grain pattern of the wood base material to some extent. Of.

Therefore, the type of adhesive, the thickness, the type of paper material, the thickness, the type of plastic film, the thickness, the presence / absence of treatment, the type of the receiving layer, the thickness, etc., are appropriately combined as necessary. Therefore, while having a concealing property that blurs a pattern that impairs the design property such as local shading and knot patterns of the wooden base material which is the object of the present invention to some extent, the original wood grain pattern can be visually recognized as a whole. It should be manufactured to.

From such a point of view, a color pattern or the like produced by ink jet printing is, for example, a portion of the wood base material to be used that is desired to be used as a design is taken in by a scanner and is semi-transparent by an ink jet printer by the digitized data. Print on layers.

[0021] By doing so, the original texture of the wood base material and the printed color pattern can be combined to provide a decorative board that has a deep synergistic effect and is excellent in design.

In order to protect the ink jet printing layer, it is preferable to provide a protective layer 7 on the surface thereof. This protective layer is a transparent aminoalkyd resin paint, urethane resin paint, unsaturated polyester resin paint, urethane modified. It can be formed of an acrylate resin coating, and can also be formed by laminating films of vinyl chloride, urethane resin, polyethylene terephthalate resin, polyethylene, polypropylene and the like.

[0023]

As described above in detail, in the decorative board according to the present invention, the shade of local color and the knot pattern of the wood base material which is the base material is concealed, and the wood grain pattern of the wood base material is concealed. By inkjet-printing a color pattern similar to that described above, it is possible to inexpensively and easily provide a decorative board that has a deep design and that takes advantage of the texture of the wood substrate due to these synergistic effects.

If the semi-transparent layer is a paper-like layer, the ink jet printing layer can be formed as it is, which is advantageous in terms of cost. Further, when incinerated as a construction waste material, harmful substances are not generated. It can be provided as a reduced decorative plate.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of a decorative board according to the present invention.

[Explanation of symbols]

1 Wood base material 2 Adhesive layer 3 Semi-transparent layer 4 Inkjet printing layer 5 Ink receiving layer 6 makeup layers 7 protective layer

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04F 13/00 E04F 13/10 A 13/10 B41J 3/04 101Y F term (reference) 2B002 AA04 AA10 2C056 EA19 EA24 FB01 FC06 2E110 AA57 AB23 BA12 BB02 2H086 BA15 4F100 AJ02A AR00B AR00D BA03 BA04 BA07 BA10A BA10C DG10B GB08 HB01 HB31C JD14D JN01B

Claims (3)

[Claims] 1. A decorative board comprising at least a wood base material, an adhesive layer and a decorative layer, wherein at least the decorative layer comprises a translucent layer and an inkjet printing layer. 2. The decorative board according to claim 1, wherein the semitransparent layer is a paper layer. 3. The decorative board according to claim 1, further comprising an inkjet receiving layer between the semitransparent layer and the inkjet printing layer.