JPH1158645A - Decorative sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a decorative sheet, in which the adhesion between a surface layer and a decorative layer or between the surface layer and an adhesive layer is favorable and, at the same time, workability and surface characteristics are favorable, by a method wherein a surface layer contacting with the decorative layer or the adhesive layer consists of a copolymerizate of ethylene and vinyl acetate and a polyolefin. SOLUTION: In a decorative sheet 10, a grain vessel tongued and grooved pattern is provided on one side of a surface sheet made of a copolymerizate of ethylene and vinyl acetate and a polyolefin-based resin sheet 1 and, when necessary, wiping ink 4 is filled in the vessel grooved parts and a luster- controlled protective coating layer 5 is formed on the surface of the surface sheet. On the other smooth side of the surface sheet 1, a base material sheet made of polyolefin-based resin sheet 3, on which a decorative sheet such as a design printed surface 6 or the like is formed through an adhesive layer 2, is provided. As a result, the adhesion between the decorative layer 6 and the surface layer or between the surface layer and the adhesive layer 2 becomes favorable, resulting in obtaining the decorative sheet 10 favorable in workability and surface characteristics.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet which can be used as a decorative sheet used for interior decoration of buildings, surface decoration of fittings, vehicle interior decoration, etc., and relates to a decorative layer and a surface layer (also referred to as a surface sheet), or The decorative sheet has good adhesion between the surface layer and the adhesive layer, and has good workability and surface characteristics.

[0002]

2. Description of the Related Art A decorative sheet in which a surface resin layer made of a thermoplastic resin is provided on the surface of a base sheet has been known. For example, JP-A-51-34967 discloses that after a thermoplastic resin such as a vinyl chloride resin or a polyolefin resin is melted, an arbitrary pattern is printed on the surface of a porous substrate such as paper or nonwoven fabric. There is disclosed a decorative sheet formed by pressing and infiltrating the thermoplastic resin into the base material.

[0003] In recent years, decorative sheets that do not use a vinyl chloride resin have been proposed. As such a decorative sheet, for example, an embossed decorative sheet obtained by sequentially laminating a pattern ink layer, an adhesive layer, and an embossed sheet made of a polyolefin-based resin on the surface of a base sheet made of a polyolefin-based resin having a concealing property. JP-A-8-1881)
There is.

[0004]

However, the above-mentioned general decorative sheet has a drawback that the adhesion between the pattern ink layer and the surface layer or the adhesive layer and the surface layer on the base sheet is weak. For example, if the surface layer is an olefin resin alone, the adhesiveness to an ink having a polar group or an adhesive is poor.
Therefore, the present inventor tried to use only a copolymer of ethylene and vinyl acetate (hereinafter also referred to as EVA) for the surface layer. However, the copolymer of ethylene and vinyl acetate (EVA) was soft, and the processability was low. Is bad. Further, since it has adhesiveness, it is not suitable for the outermost layer. In addition, there was a problem that the creep resistance and stain resistance were poor.

The present invention is to solve the above-mentioned drawbacks of the prior art and the like, and relates to a decorative sheet which can be used as a surface decorative sheet used for interior decoration of buildings, surface decoration of fittings, vehicle interior decoration, and the like. Further, a decorative sheet having good adhesion between the surface layer and the decorative layer or between the surface layer and the adhesive layer, and excellent workability and surface characteristics is realized.

[0006]

Means for Solving the Problems The decorative sheet of the present invention comprises:
A corona discharge treatment, a primer layer (as necessary), a decorative layer or an adhesive layer,
A surface layer is formed sequentially, and this surface layer is made of a copolymer of ethylene and vinyl acetate and a blend of polyolefin, and the ratio of the copolymer of ethylene and vinyl acetate in the surface layer is 5 to 60%. And the vinyl acetate concentration of the copolymer of ethylene and vinyl acetate (EVA) is 5% to 40%.
It is a decorative sheet characterized by the above.

[0007] Here, if the proportion of EVA is less than 5%, the adhesion deteriorates, and if it exceeds 60%, the compatibility with polyolefins such as polypropylene decreases, the cohesive force decreases, and the cost increases. It is not preferable.
Further, when the vinyl acetate concentration exceeds 40%, the acetic acid odor becomes strong.

By adding a (block) copolymer of ethylene and vinyl acetate to a polyolefin such as polyethylene or polypropylene, the tensile elongation and impact strength are greatly improved. This indicates that the block copolymer acts as a compatibilizer, and also improves the adhesiveness, the paintability, and the like.

A decorative sheet obtained by subjecting a resin sheet (top sheet) obtained by adding a block copolymer of ethylene and vinyl acetate to a polyolefin to a decorative treatment has excellent tensile impact strength and tensile elongation, and can be bent. It has been found that since the whitening does not occur and the polar group is present, the laminate has a high correlation adhesion strength.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The decorative sheet of the present invention
A doubling decorative sheet formed by laminating a base sheet, which is a polyolefin resin film or sheet (hereinafter, also referred to as a film in the present invention, including a film), and a topsheet may be used. Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the decorative sheet 10 of the present invention has, on one surface of a surface sheet made of a polyolefin resin film or sheet 1 made of a copolymer of ethylene and vinyl acetate and polyolefin, a wood grain conduit uneven pattern. The conduit recess is filled with the wiping ink 4 as required, and a gloss adjusting protective coating layer 5 is formed on the surface thereof, and the adhesive layer 2 is formed on the other smooth surface of the topsheet. A decorative sheet 10 provided with a base sheet made of a polyolefin resin film or sheet 3 on which a decorative layer (pattern layer) such as a picture print layer 6 is formed.

[0011] The method of manufacturing the base sheet is such that when the film or sheet is extruded with a polyolefin resin, the extruded resin passes between a chill roll composed of a normal mirror roll and a backup roll. It was made by molding.

Further, as a method for manufacturing a topsheet, when extruding a film or sheet with a polyolefin resin, a chill roll having a wood pipe uneven pattern provided on the surface of the chill roll and a backup roll having a mirror-finished surface are used. A method of manufacturing a topsheet formed by molding so that the extruded resin passes is preferable.

More specifically, for example, as shown in FIG. 2, a method for manufacturing a topsheet is to extrude a polyolefin resin obtained by melting a blend of polyolefin and EVA from a T-die 20 into a film or sheet. At the time of molding, the surface of a metal chill roll is provided with a hill roll 22 provided with a wood grain conduit uneven pattern having a thickness of convex portions smaller than the thickness of the extruded film or sheet, and a backup roll 21 having a mirror-finished surface. It is formed so that the extruded resin passes.

As the base sheet or the surface sheet, besides the above-mentioned melt extrusion molding, a polyolefin-based resin film or sheet produced by a known sheet molding method (including a film when referred to in the present invention). Used. The thickness is about 50 to 500 μm, more preferably 50 to 200 μm. In addition, the base sheet may be paper or a thermoplastic resin sheet such as polyvinyl chloride.

Here, as the olefin resin, polyethylene, ethylene / propylene copolymer, ethylene / propylene
Butene-1 copolymer, polypropylene, propylene / butene-1 copolymer, polybutene-1, butene-1 / propylene / ethylene / 3 terpolymer, butene-1 / hexene-1 / octene-1 / ternary Resins such as copolymers and polymethylpentene may be used alone or in combination of two or more.

In order to prevent whitening, an olefin-based thermoplastic elastomer which is a composite material comprising an elastomer and an olefin-based resin can be used. There are the following three types of olefin-based thermoplastic elastomers. That is, a type in which an elastomer as a soft segment and an olefin resin as a hard segment are simply blended. A crosslinked type in which an elastomer and an olefin resin are partially crosslinked to form a composite. A type in which an elastomer is crosslinked and dispersed in an olefin resin.

Specific examples are described below. Type: The olefin-based resin is the same as described above for the olefin-based resin. Examples of the elastomer include various rubbers, and examples of the rubber include a diene rubber, a hydrogenated diene rubber, and an olefin copolymer rubber. Among them, a hydrogenated diene rubber is preferable. The hydrogenated diene rubber is obtained by adding a hydrogen atom to at least a part of the double bond of the diene rubber molecule, and has a role of suppressing crystallization of the polyolefin resin and increasing flexibility and transparency. In general, when a diene rubber is added to an olefin resin, the weather resistance and heat resistance are lower than that of the olefin resin without the diene rubber due to the double bond of the diene rubber. Is saturated with hydrogen, so that the olefin-based resin has good weather resistance and heat resistance without deterioration.

As the diene rubber, isoprene rubber,
Examples include butadiene rubber, butyl rubber, propylene / butadiene rubber, acrylonitrile / butadiene rubber, acrylonitrile / isoprene rubber, and styrene / butadiene rubber. The olefin-based copolymer rubber is an elastic copolymer obtained by adding at least one kind of polyene that can be copolymerized with two or more kinds of olefins.
Ethylene, propylene, olefin and the like are used, and as polyene, 1,4 hexadiene, cyclic diene, norbornane and the like are used. Preferred olefin copolymer rubbers include, for example, elastic copolymers containing an olefin as a main component, such as ethylene-propylene copolymer rubber, ethylene-propylene non-conjugated diene rubber, and ethylene-butadiene copolymer rubber. For the purpose of the present invention, styrene-butadiene rubber is particularly preferred. The amount of the rubber added is 1 to 100 parts by weight of the olefin resin.
About 90 parts by weight. If the amount is less than 1 part by weight, the elasticity, elongation, and impact resistance due to the addition of rubber are insufficient, and cracks and cracks are likely to occur during bending such as V-cutting and drawing. If the amount is more than 90 parts by weight, the elasticity and the elongation percentage become too large, and it is not preferable because the examination upon printing becomes poor.

Examples of the type include Japanese Patent Publication No. 53-2
No. 1021, JP-B-53-34210, JP-B-56-15741 and the like.

(Coloring) If necessary, a coloring agent comprising a pigment or a dye is added for coloring. Transparent coloring, opaque (concealing) coloring depending on the application. The color of the base sheet is generally opaque because it can cover the surface of the adherend. As a coloring agent, inorganic pigments such as titanium white, zinc white, red stalk, vermilion, ultramarine blue, cobalt blue, titanium yellow, carbon black, isoindolino, Hanzai yellow A, quinacridone, permanent red 4
R, organic pigments or dyes such as phthalocyanine blue,
Metal pigments such as aluminum and pearls, pearlescent pigments made of foil powder of titanium dioxide-coated mica, basic zinc carbonate and the like are used. Further, if necessary, an inorganic filler may be added, and calcium carbonate, barium sulfate, clay,
Powders such as talc, silica (silicon dioxide), and alumina (aluminum oxide) are exemplified.

(Flame retardant) Aluminum hydroxide, magnesium hydroxide, antimony trioxide and the like are used. The addition amount is about 10 to 100 parts by weight based on 100 parts by weight of the resin, depending on the desired flame retardant grade.

(Ultraviolet Absorber, Light Stabilizer) The ultraviolet absorber and light stabilizer are for imparting good weather resistance (light resistance) to the resin. The amount of each agent is usually about 0.01 to 0.15% by weight. Generally, it is preferable to use an ultraviolet absorber and a light stabilizer in combination. As the ultraviolet absorber, an organic substance such as benzotriazole, benzophenone, and salicylic acid ester, or an inorganic substance such as zinc oxide, cerium oxide, and titanium oxide having a diameter of 0.2 μm or less can be used. As the light stabilizer, a hindered amine radical scavenger such as bis- (2,2,6,6-tetramethyl-4-piperidinyl) sebacate and a radical scavenger such as a piperidine radical scavenger can be used.

Since the adhesive strength between the base sheet and the topsheet deteriorates with time due to ultraviolet rays, it is not sufficient to secure the initial adhesive strength as a decorative sheet during production. (Black panel 63 ° C.) In order to have sufficient adhesion strength as a decorative sheet even after irradiation, an ultraviolet absorber may be added to the surface resin layer. As a result of various studies, it is preferable to add a benzotriazole-based ultraviolet absorber at 0.1% by weight or more or a hindered amine-based radical scavenger at 0.1% by weight or more as a result of various studies.

(Heat Stabilizer) A heat stabilizer is used to further improve the prevention of deterioration such as thermal discoloration during thermal processing. Known heat stabilizers such as phenol, sulfite, phenylalkane, phosphite, and amine can be used. No. An olefin elastomer obtained by using a copolymer rubber as a soft segment, blending them uniformly, and mixing them. (B) monoolefin rubber / (A) olefin polymer = 50 / 50-90
/ 10 (weight ratio).

The base sheet and the surface sheet made of the polyolefin resin sheet can be obtained by blending the above materials with a conventional method such as a melt extrusion method from a T-die if necessary. Here, when the topsheet is formed of two or more layers, at least the topsheet in contact with the decorative layer or the adhesive layer may be made of a copolymer of ethylene and methyl methacrylate and a polyolefin.

[Explanation of a method of bonding the base sheet and the top sheet] The top sheet is made into a base sheet by lamination by hot melting or an adhesive such as a two-component curable urethane resin or a melt-extruded polyethylene. The resin is laminated on the resin, or the resin of the top sheet is melt-extruded (extrusion) coated on the base sheet, laminated, and bonded.

[Explanation of Adhesive Layer] When laminating the base sheet and the topsheet by dry lamination, 2
An adhesive used in ordinary dry lamination, such as a liquid-curable urethane resin, is used. When the base sheet and the topsheet are thermally bonded, a reactive hot melt adhesive is used. Further, although the adhesion strength is lowered, an isocyanate-based anchor coating agent (for example, a compound such as triresin isocyanate and hexamethylene diisocyanate) can be used. Usually thermoplastic inks can also be used.

[Explanation of Easy Adhesion Treatment] It is possible to print a pattern directly on the polyolefin resin sheet itself or to apply an adhesive, but it is also necessary to determine the adhesion between the pattern and the adhesive and the polyolefin resin sheet, In order to further strengthen the adhesive force between the adhesive and the adhesive, in the present invention, the application of an easy-adhesion layer on the surface of the resin sheet or the surface of the resin sheet on which the pattern is printed,
An easy adhesion treatment such as a corona discharge treatment or a plasma treatment may be performed.

Acrylic, vinyl chloride-vinyl acetate copolymer, polyester, polyurethane, chlorinated polypropylene, and chlorinated polyethylene are used as the easy-adhesion layer (also called a primer layer or an anchor layer). Also,
If necessary, an inorganic filler may be added, and examples thereof include powders such as calcium carbonate, barium sulfate, clay, talc, silica (silicon dioxide), and alumina (aluminum oxide).

Examples of the acrylic include poly (methyl meth) acrylate, poly (ethyl meth) acrylate, propyl poly (meth) acrylate, butyl poly (meth) acrylate, and methyl (meth) acrylate / (meth) acrylate. Butyl acrylate copolymer, ethyl (meth) acrylate / butyl (meth) acrylate copolymer, ethylene / methyl (meth) acrylate copolymer, styrene (meth) methyl acrylate copolymer, etc. ) Acrylic resin composed of a homopolymer or a copolymer containing an acrylate ester (however, (meth) acryl means acryl or methacryl, and the same applies hereinafter).

Polyurethane is mainly composed of polyol (polyhydric alcohol) and isocyanate as a crosslinking agent (curing agent).
Polyurethane. The polyol has two or more hydroxyl groups in the molecule, and examples thereof include polyethylene glycol, polypropylene glycol, acrylic polyol, polyester polyol, and polyether polyol.

As the isocyanate, 2 in the molecule is used.
A polyvalent isocyanate having at least two isocyanate groups is used. For example, aromatic isocyanates such as 24 tolylene diisocyanate, xylene diisocyanate, and 44 diphenylmethane diisocyanate, or aliphatic isocyanates such as hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, and hydrogenated diphenylmethane diisocyanate are used.

"Explanation of decoration processing" A desired decoration processing is applied to a base sheet, a topsheet and the like. As decoration processing, coloring by kneading of a coloring agent, pattern formation consisting of a picture or a metal layer,
There are embossing (heating press), hairline processing and the like to form an uneven pattern.

(Coloring) Same as (Coloring) in "Description of Olefin Resin".

(Picture) As the picture printing, a pattern is formed by ink (or paint) using a known printing method such as gravure printing, offset printing, silk screen printing, and transfer printing from a transfer sheet. As the pattern, wood grain pattern,
There are a stone pattern, a leather pattern, a geometric figure, a character, a symbol, or a solid front face. The pattern is provided on the front surface, the back surface, the front and back surfaces, or between the layers of the sheet.

As the ink (or) paint, chlorinated polyolefins such as chlorinated polyethylene and chlorinated polypropylene, polyesters, polyurethanes, acrylics, vinyl acetate, vinyl chloride / vinyl acetate copolymers, cellulose resins, etc. are used as binders. And one kind or a mixture of two or more kinds. A material obtained by adding known pigments as described above to the above is used.

When printing directly on a polyolefin resin, it is preferable from the viewpoint of adhesiveness of a chlorinated polyolefin, polyurethane or the like as a binder. However, if an easy-adhesion primer is appropriately selected and a layer is formed, other binders may be used. Even give sufficient adhesion. When an adhesive layer is not used, a urethane-based high temperature reaction type (150 to 250 ° C.) ink is suitable.

Further, in order to further improve the feeling of shine and depth, the glitter pigment mixed into the pattern printing layer 6 includes:
Pigments having metallic luster such as powders or foils of metals such as aluminum, copper, brass, etc., metal flakes and fine fragments of metallized synthetic resin films, scale-like foils such as titanium dioxide coated mica, fish scale foil, bismuth oxychloride Pigment having pearl luster or interference luster composed of pieces, or two or more resin layers having different refractive indices such as a polyester resin layer and an acrylic resin layer are laminated in large numbers with a thickness of about several μm or less. Pigments made of foil powder obtained by shredding a film that has produced an iris color due to interference can be used.

(Metal layer) Metal such as aluminum and chromium is formed by vacuum evaporation. The metal layer may be formed on the front surface, or may be formed in a pattern so as to obtain the above-described pattern. Is formed in a desired pattern, a metal is vapor-deposited on the front surface and then washed with water to remove the metal layer immediately above the removal layer together with a known method.

(Embossing of the surface sheet and the base sheet) As the embossing, the olefin resin is heated and melt-softened, pressurized and shaped by a chill roll and a back roll having a concavo-convex pattern, and formed by cooling and fixing. For example, an embossing device as shown in FIG. 2 is used. The doubling decorative sheet may be embossed. As the uneven shape, wood grain pipe uneven pattern (wood grain board groove), stone board surface unevenness (granite open face etc.), cloth surface texture, satin finish, sand grain, hairline, precision uneven pattern (parallel groove etc.), Mirror, flat surface.

Here, the precise concavo-convex pattern is, for example, a precision line. That is, in a closed curve area, a set of uneven shapes including unevenness or grooves forming parallel straight line groups or curve groups, and a set of straight line groups or curve groups adjacent via a boundary between any two areas. The angles formed by the directions are all different. This shape has a design in which each closed region looks like a different glossy pattern, and the gloss of each closed region changes depending on parallax. In particular, in order to recognize a parallel straight line group or curve group as a pattern of change in gloss, the line depth and interval are 0.1 to 100 μm, and the angle between the directions of the adjacent straight line group or curve group is A case of 5 ° or more is desirable. Further, in order to make the angles of adjacent line groups different from each other through the boundary of any two closed regions, four kinds of angles are necessary and sufficient from the theorem of the four-color problem of the topology. Condition.

(Wiping processing of top sheet) Further, if necessary, the concave portions of the uneven pattern of the top sheet are filled with a coloring ink by a known wiping method (see Japanese Patent Publication No. 58-14312). For example, natural resins such as shellac, corval, dammar, rosin, rosin ester or modified resins thereof, nitrocellulose, acetylcellulose, ethylcellulose, cellulose derivatives such as benzylcellulose, phenolic resin, urea resin, phthalic acid resin, Maleic acid resin, melamine resin, polyvinyl acetate resin, polyvinyl chloride resin, acrylic resin, polyvinyl alcohol, polyvinyl butyral, epoxy resin, silicone resin, polyester resin, polyamide resin, polyurethane resin, Others such as synthetic resins, chlorinated rubber, rubber derivatives such as synthetic rubber, etc. are used as a constituent material of a vehicle, and a coloring agent, a paint containing an extender pigment such as precipitated barium sulfate, a plasticizer, or the like is added to the vehicle. Ink is used. When an acrylic sheet is used as the surface sheet, it is preferable to use an acrylic or urethane aqueous emulsion type transparent or transparent coloring ink.

This colored paint or ink is coated on the concave portion of the sheet surface with a roll coat or a knife coat and then scraped off with a doctor blade or wiping paper to remove the colored paint or ink coated on the convex portion of the sheet. It is necessary to adjust the viscosity of the coloring paint or the ink composition only in the concave portions, the number of rotations of the roll, the blade angle of the doctor, the thickness, the sheet speed, the speed of the wiping paper, the hardness of the rubber roll, and the like. The color tone of this colored paint or ink is
For example, in the case of a wood pattern, it is preferably the same or similar to a conduit, and in the case of a stone pattern, for example, it is preferably the same or similar to a crack.

On the surface of the topsheet, a gloss adjusting protective coating layer 5 can be provided for the purpose of protecting the surface and adjusting the gloss. For the protective coat layer, an acrylic resin, an epoxy resin, a polyurethane resin, a chlorinated polyolefin, an ionizing radiation curable resin, or the like is used. When the protective coat layer is matted, a matting (light diffusion) agent is added. As the matting agent, fine particles having a particle size of about 1 to 30 μm such as calcium carbonate, silica, alumina, barium sulfate, urethane resin beads and polycarbonate resin beads are used. The protective coat layer is applied to a thickness of about 1 to 100 μm by a gravure coat, a roll coat, a knife coat or the like.

"Post-processing and use of decorative sheet" (Adherend to be laminated) As a use of the present invention, a surface decorative material is formed by laminating on the surface of various members. Examples of adherends include metal plates such as iron and aluminum, wood veneers, wood plywood, wood plates such as wood fiber boards, glass plates, ceramic plates such as ceramics, plate materials such as cement plates such as ALC, polyvinyl chloride, and the like. A plate material such as a resin plate of a phenol resin or the like, or a three-dimensionally shaped article (molded product) made of the above-mentioned various materials is exemplified.

(Lamination method) As a method of laminating the above-mentioned various members, for example, a method of laminating a plate-like substrate by pressing with a pressure roller via an adhesive layer, Japanese Patent Publication No. 50-191
No. 32, etc., the decorative sheet is inserted between the male and female molds for injection molding with the transparent resin layer side facing the cavity side, the molds are closed, and the male gate is closed. Injection molding and injection of a molten resin, followed by cooling to form a resin molded article and simultaneously bond and laminate a decorative sheet on its surface, a so-called simultaneous injection molding lamination method, Japanese Patent Publication No. 56-47768.
As described in Japanese Patent Application Publication No. Sho 60-58014 and the like, a decorative sheet is placed on the surface of a molded article facing or placed with an adhesive layer interposed therebetween, and pressure is applied by vacuum suction from the molded article side. While supplying the decorative sheet by the difference through the adhesive layer, the decorative sheets are successively pressed and laminated on the plurality of side faces constituting the columnar body by different rollers in a plurality of directions, so-called wrapping. Processing method, actual public university 15-31
No. 122, JP-A-48-47972, etc., a decorative sheet is first laminated on a plate-like substrate via an adhesive layer, and then the plate-like substrate is on the side opposite to the decorative sheet. Cut a V-shaped or U-shaped groove reaching the interface between the decorative sheet and the plate-shaped substrate on the surface, and then applying an adhesive in the groove, and bending the groove There is a so-called V-cut or U-cut processing method for forming a box or a column.

[0047]

【Example】

Example 1 As a base material sheet, "Tuffper" manufactured by Tatsuno Chemical
After one side of the substrate sheet is subjected to corona treatment using 100 μm, a grain pattern is applied by a gravure printing method using a picture ink (trade name: X, manufactured by Showa Ink Kogyosho). Then, a urethane acrylate adhesive layer was laminated by a gravure printing method, and on top of that, a polypropylene product name "HIPOL" manufactured by Mitsui Petrochemical and 40% Mitsui Petrochemical product name "Mirason EVA" (VA ratio: 3)
(0%) is extruded in two layers. At this time, the layer containing "Mirason EVA" and the adhesive layer are extruded so as to be in contact with each other, and the adhesive surface side of the extruded resin is subjected to ozone treatment.

[0048]

As described above, the decorative sheet of the present invention is a decorative sheet that can be used as a surface decorative sheet used for interior decoration of buildings, surface decoration of fittings, vehicle interior decoration, and the like.
In particular, there is an effect that a decorative sheet having good adhesion between the decorative layer and the surface layer (surface sheet) or between the surface layer and the adhesive layer, and excellent workability and surface characteristics can be realized.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one example of a decorative sheet of the present invention.

FIG. 2 is a longitudinal sectional view showing an example of a production process of the decorative sheet of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Polyolefin resin sheet (surface sheet) 2 Adhesive layer 3 Polyolefin resin sheet (base sheet) 4 Wiping ink 5 Gloss adjustment protective coat layer 6 Picture printing layer 10 Makeup sheet 20 T die 21 Backup roll 22 Chill roll with uneven pattern 30 Release roll

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁶ Identification code FI B32B 33/00 B32B 33/00 B41M 3/06 B41M 3/06

Claims (3)

[Claims] A decorative layer or an adhesive layer and a surface layer made of a polyolefin resin are sequentially formed on one surface of a substrate sheet, and at least a surface layer in contact with the decorative layer or the adhesive layer is formed of ethylene, vinyl acetate and the like. And a polyolefin. 2. The method according to claim 1, wherein the surface layer is formed of two or more layers, and at least the surface layer in contact with the decorative layer or the adhesive layer comprises a copolymer of ethylene and vinyl acetate and a polyolefin. The decorative sheet according to the above. 3. The copolymer of ethylene and vinyl acetate, wherein the proportion of the copolymer of ethylene and vinyl acetate in the surface layer composed of the copolymer of ethylene and vinyl acetate and the polyolefin is 5 to 60%, 5% to 40% vinyl acetate concentration
The decorative sheet according to claim 1 or 2, wherein: