JP3193787B2 - Decorative sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet used as an interior material for a building, for example, for lapping a baseboard or a frame material.

[0002]

2. Description of the Related Art Decorative sheets used for wrapping of skirting boards and frame materials in buildings include (1) a transparent semi-rigid polyvinyl chloride film having a printing layer formed thereon;
(2) After forming a printing layer on a semi-rigid polyvinyl chloride film having a color concealing property, a transparent semi-rigid polyvinyl chloride film is laminated on the printing layer by heating, and the transparent semi-rigid polyvinyl chloride film is formed. So-called doubling embossing in which the surface is embossed, (3) a printing layer formed on a polyethylene terephthalate film,
(4) A film in which a printing layer is formed on a polyolefin film such as polyethylene or polypropylene is used.

[0003]

Among the various decorative sheets described above, the decorative sheet using the semi-rigid polyvinyl chloride film (1) or (2) generates chlorine compounds when subjected to incineration. Therefore, incineration cannot be used as a means for treating waste materials. Further, the decorative sheet using the polyethylene terephthalate film of (3) is different from the decorative sheet using the semi-rigid polyvinyl chloride film of (1) or (2) in that it is wrapped, embossed, V-cut, etc. Is inferior in molding processability. Further, the decorative sheet using the polyolefin-based film of (4) has poorer weather resistance as compared with the decorative sheet using the semi-rigid polyvinyl chloride film of (1) or (2), and is not compatible with other plastic films. A decorative sheet using a polyethylene film has poor adhesiveness and adhesion to a printing ink, and is poor in design as a decorative sheet due to poor transparency.

[0004] On the other hand, the present invention has a decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin, which is a versatile solvent-type resin, as a vehicle. When using incineration as a means of treating waste materials, the generation of chlorine compounds is extremely low,
Further, the present invention provides a decorative sheet having good suitability for forming such as lapping, embossing, V-cut, and vacuum forming, and having beautiful transparency.

[0005]

The above object is achieved by the decorative sheet of the present invention having the following construction.
That is, the first invention includes a transparent film layer made of an ethylene-vinyl alcohol copolymer resin, a transparent primer layer made of a urethane-based resin formed on one surface of the transparent film layer, And a decorative layer formed of a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle.

In the decorative sheet according to the first aspect of the present invention, the decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle comprises a picture layer, and ethylene-vinyl alcohol. It is preferable that a gloss adjusting layer is formed on the other surface of the transparent film layer made of the copolymer resin.

Further, the second invention provides a first film layer made of an ethylene-vinyl alcohol copolymer resin,
A primer layer made of a urethane resin formed on one surface of the film layer, and a decorative layer formed on the primer layer by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, A transparent adhesive layer made of a urethane resin laminated on the surface on which the decorative layer is formed, and a transparent second film made of an ethylene-vinyl alcohol copolymer resin formed on the transparent adhesive layer And a decorative sheet having a layer.

In the decorative sheet according to the second aspect of the present invention,
The first film layer made of an ethylene-vinyl alcohol copolymer resin and the primer layer made of a urethane-based resin formed on one surface of the first film layer may be transparent or opaque. You may.

In the decorative sheet according to the second aspect of the present invention, the decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle comprises a picture layer, and ethylene-vinyl alcohol. It is preferable that a gloss adjusting layer is formed on a transparent film layer made of a copolymer resin.

Further, in each of the decorative sheets described above,
When a gloss adjusting layer is provided, it is preferable that the gloss adjusting layer is formed of a matte portion and a gloss portion.

In the decorative sheet of the present invention having the above-mentioned structure, the film made of an ethylene-vinyl alcohol copolymer resin used as a base material of the decorative sheet is suitable for the decorative sheet of the present invention for lapping workability, V-cut workability and the like. From the point of providing, a thickness of about 50 to 150 μm is preferable.

A primer layer made of a urethane resin formed on a film layer made of an ethylene-vinyl alcohol copolymer resin is a decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle. A two-component curable coating agent comprising a polyol compound as a main component and an isocyanate compound as a curing agent, for example, by a gravure coat or the like, to form an ethylene-vinyl alcohol copolymer resin film. Obtained by forming on top. As the polyol compound, for example, polyester polyol, acrylic polyol, epoxy polyol, polyether polyol and the like are used. The isocyanate compound is a compound having at least two isocyanate groups in the molecule. Examples thereof include: (1) an aliphatic diisocyanate compound: ethylene diisocyanate, 1,4-butane diisocyanate,
6-hexane diisocyanate and modified products of these diisocyanates; (2) alicyclic diisocyanate compounds: dicyclohexylmethane diisocyanate, cyclohexane diisocyanate, methylcyclohexane diisocyanate and modified products of these diisocyanates; (3) aromatic diisocyanate: 2,4- and 2,6
-Tolylene diisocyanate, 4,4'-diphenyl ether diisocyanate, 4-4 'diphenylmethane diisocyanate, m-xylylene diisocyanate and modified products of these diisocyanates; (4) aromatic triisocyanate: triphenylmethane triisocyanate and its Modified products and the like are used.

The decorative layer on the primer layer made of a urethane resin is formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, and the decorative layer is formed of vinyl chloride-vinyl acetate. It may be a solid printing on the entire surface of a printing ink using a copolymer resin as a vehicle, or a printed layer of a picture. The means for forming the decorative layer may be any printing means. For example, when forming a wood grain pattern or a stone grain pattern, gravure printing is preferred. Further, on a transparent primer layer made of a urethane resin formed on an ethylene-vinyl alcohol copolymer resin film, a concave portion having an embossed pattern expressing irregularities such as a wood channel groove is formed, and the concave portion is formed in a known manner. According to the method described above, a layer filled with a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle can be used as a decorative layer.

The gloss adjusting layer is formed of, for example, a urethane resin containing a matting agent such as silica. The method for forming the gloss adjusting layer is not particularly limited, but gravure printing means with a small amount of application is suitable. The gloss adjusting layer may have a uniform gloss on the entire surface.For example, when the picture layer has a wood grain pattern, the gloss of a portion corresponding to a conduit portion of the wood grain is higher than the gloss of other portions. If dropped, an effect due to visual unevenness can be obtained.

The invention according to claim 3, wherein a decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin formed on the primer layer as a vehicle, and an ethylene-vinyl alcohol copolymer resin As the transparent adhesive layer made of a urethane-based resin for attaching the transparent film layer made of the urethane-based resin, the same urethane-based resin as the above-described transparent primer layer made of the urethane-based resin is used.

The decorative sheet according to each of the present inventions having the above-described structure,
For example, it can be used by being laminated on a wood board such as a plywood, a veneer, a particle board, a metal plate such as an iron plate and an aluminum plate, and other base materials such as paper, nonwoven fabric, and fabric. Also,
If necessary, forming processing such as lapping processing, vacuum press laminating processing, embossing processing, and V-cut processing can be performed.

[0017]

The decorative sheet according to the present invention comprises a film layer made of a transparent ethylene-vinyl alcohol copolymer resin, a primer layer made of a transparent urethane resin formed on one surface of the film layer, And a decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, wherein the decorative layer in the decorative sheet is transparent with an ethylene-vinyl alcohol copolymer resin. It is used so that it can be recognized from outside through the film layer.

[0018] The decorative sheet of the present invention having such a structure is
Due to the properties of the film of the ethylene-vinyl alcohol copolymer resin forming the base material in the decorative sheet, V
It has an excellent effect on cut workability, lapping workability, embossing workability, vacuum forming suitability, etc.

Further, since the decorative sheet of the present invention uses an ethylene-vinyl alcohol copolymer resin film as a base material in the decorative sheet, the generation of chlorine compounds during combustion is extremely small, and the waste is disposed by incineration. Can be attached to

Further, in the decorative sheet of the present invention,
Solvents using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, via a primer layer of a urethane resin, for an ethylene-vinyl alcohol copolymer resin film, for which good adhesion cannot be obtained with a solvent-type ink. Since the decorative layer is formed by using a printing ink of a mold, a decorative layer having good adhesion by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, which is a versatile solvent-based ink, has an ethylene- Obtained for vinyl alcohol copolymer resin film.

That is, for an ethylene-vinyl alcohol copolymer resin film, for example, vinyl chloride-
It cannot be used to form a highly adherent print layer with a printing ink using a non-curable resin such as vinyl acetate copolymer resin, cellulosic resin, or acrylic resin as a vehicle, and is used as a surface material for building materials and furniture. A decorative layer that satisfies the physical properties required for a decorative sheet cannot be formed. On the other hand, a printing layer using a two-part curable resin such as polyurethane, unsaturated polyester, epoxy or the like as a vehicle has good adhesion to an ethylene-vinyl alcohol copolymer resin film. However, since the pot life is short, the effective use of the remaining ink cannot be achieved. Therefore, an ink using a two-component curable resin as a vehicle is not suitable as an ink for forming a decorative layer on the premise of multicolor printing. This tendency is particularly strong when producing a large variety of small lots.

On the other hand, since the decorative sheet of the present invention uses the two-component curable polyurethane for the entire surface coating as a primer layer or an adhesive layer, it can be manufactured in batches for any number of lots. The short pot life of the residual ink does not hinder the productivity.

In the decorative sheet of the present invention, the decorative layer, which is premised on multicolor printing, is formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin, which is a versatile solvent-type resin, as a vehicle. Therefore, production of many kinds and small lots can be performed efficiently. Further, the remaining ink for forming the decorative layer can be reused.

From these facts, according to the present invention, physical properties such as V-cutting suitability, lapping suitability, embossing suitability, vacuum forming suitability, etc. are excellent.
Moreover, it is possible to supply inexpensively a decorative sheet free of environmental pollution at the time of disposal by incineration.

[0025]

EXAMPLES The concrete structure of the decorative sheet of the present invention will be described below with reference to production examples.

Example 1 In FIG. 1, one of the layers 2 of a transparent film “EVAL (registered trademark) EF-F: manufactured by Kuraray Co., Ltd.” having a thickness of 75 μm made of an ethylene-vinyl alcohol copolymer resin. 7 g (wet) of a urethane-based two-component curable ink “ALFA: manufactured by The Inktech Co., Ltd., polyol compound: isocyanate-based curing agent = 100: 4 (weight ratio)”
/ M ² , dried and cured to form a transparent primer layer 3
Was formed.

Subsequently, a decorative layer 4 having a woodgrain pattern was formed on the primer layer 3 by using a printing ink "Chem. X: Showa Ink Kogyosho" using a vinyl chloride-vinyl acetate copolymer resin as a vehicle. On the surface on which the decorative layer 4 is formed, a glittering layer 5 having a thickness of 6 μm is formed by a printing ink “Chemical XGS: Showa Ink Kogyosho” using a vinyl chloride-vinyl acetate copolymer resin containing a pearl pigment as a vehicle. did.

Next, on the other surface of the above-mentioned ethylene-vinyl alcohol copolymer resin film layer 2, a solid printing layer 6 of a urethane-based ink "UM: Showa Ink Industries Co., Ltd."
On the solid printing layer 6, a wood grain conduit pattern 7 is formed by a urethane ink “PTC: Dainichi Seika Co., Ltd.”, and a three-dimensional pattern having a gloss difference between the solid printing layer 6 and the wood grain conduit pattern 7. A decorative sheet 1 having an excellent visual effect was obtained.

In FIG. 2, the decorative sheet 21 is obtained by wrapping the decorative sheet 1 on the wooden base material 9 using the adhesive layer 8 made of urethane resin. The suitability was very good.

Example 2 In FIG. 3, one of the layers 32 of a 75 μm thick transparent film “EVAL (registered trademark) EF-F: manufactured by Kuraray Co., Ltd.” made of an ethylene-vinyl alcohol copolymer resin. The surface of the urethane two-part curable ink "ALFA: The
Inktec Co., Ltd., polyol compound: curing agent = 1
00: 4 "was applied at 7 g (wet) / m ² to form a transparent primer layer 33.

Subsequently, on the primer layer 33, a decorative layer 34 having a wood grain pattern formed by a printing ink "Chemical X: Showa Ink Kogyosho" using a vinyl chloride-vinyl acetate copolymer resin as a vehicle is formed. Further, on the surface on which the decorative layer 34 is formed, a glittering layer 35 having a thickness of 6 μm by an ink “Kagaku XGS: Showa Ink Kogyosho” using a vinyl chloride-vinyl acetate copolymer resin containing a pearl pigment as a vehicle is provided. Formed.

Further, on this glittering layer 35, a concealing layer 38 was formed by a printing ink "Chemical X: Showa Ink Kogyosho" using a vinyl chloride-vinyl acetate copolymer resin as a vehicle.

Next, on the other surface of the ethylene-vinyl alcohol copolymer resin film layer 32, a solid printing layer 36 of a urethane ink "UM: Showa Ink Kogyosho" is provided.
And a urethane-based ink “PT” on the solid printing layer 36.
C: Dainichi Seika Co., Ltd .: ", and a decorative sheet 31 having a three-dimensional visual effect having a gloss difference between the solid printing layer 36 and the wood grain conduit pattern 37 was obtained.

"Example 3" The decorative sheet 1 in Example 1 was laminated on a flame retardant backing paper for wallpaper of 80 g / m ² in size using a two-component curable polyurethane-based adhesive. A decorative sheet having a specification of vinyl wallpaper, which is an example of the present invention, was obtained.

[0035]

According to the decorative sheet of the present invention, the decorative sheet has a decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin, which is a versatile solvent-type resin, as a vehicle, In addition, the molding process such as lapping process, embossing process, V-cut process, vacuum forming process, etc. can be performed properly. In addition, when incineration is used as a disposal method of waste materials, the generation of chlorine compounds is extremely small, resulting in air pollution. Can be applied to the incineration process without causing odor and beautiful transparency can be provided, and it can be supplied at a low cost.

[Brief description of the drawings]

FIG. 1 is a cross-sectional end view schematically showing one embodiment of a decorative sheet according to the present invention.

FIG. 2 is a cut end view schematically showing a decorative board obtained by lapping an example of the decorative sheet of the present invention on a wooden base material.

FIG. 3 is a cut end view schematically showing another embodiment of the decorative sheet of the present invention.

[Explanation of symbols]

1: decorative sheet 2: transparent film layer made of ethylene-vinyl alcohol copolymer resin 3: transparent primer layer made of urethane resin 4: formed by printing ink using vinyl chloride-vinyl acetate copolymer resin as a vehicle The makeup layer

Claims (5)

(57) [Claims] 1. A transparent film layer of an ethylene-vinyl alcohol copolymer resin, a transparent primer layer of a urethane-based resin formed on one surface of the transparent film layer, and A decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle. 2. A decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle is a picture layer, and the other of a transparent film layer made of an ethylene-vinyl alcohol copolymer resin. The decorative sheet according to claim 1, wherein a gloss adjusting layer is formed on a surface of the decorative sheet. 3. A film layer made of an ethylene-vinyl alcohol copolymer resin, a primer layer made of a urethane resin formed on one surface of the film layer, and a vinyl chloride-vinyl acetate copolymer formed on the primer layer. A decorative layer formed by a printing ink using a polymer resin as a vehicle, a transparent adhesive layer of a urethane-based resin laminated on a surface on which the decorative layer is formed, and a transparent adhesive layer formed on the transparent adhesive layer A transparent film layer made of an ethylene-vinyl alcohol copolymer resin as described above. 4. A decorative layer formed by a printing ink using a vinyl chloride-vinyl acetate copolymer resin as a vehicle, comprising a picture layer, and a decorative film layer formed of an ethylene-vinyl alcohol copolymer resin. The decorative sheet according to claim 3, wherein a gloss adjusting layer is formed on the decorative sheet. 5. The decorative sheet according to claim 2, wherein the gloss adjusting layer is formed by a mat portion and a gloss portion.