JP3289630B2 - Decorative sheet, method for producing the same, and decorative member using the 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 for use in interior materials such as inner walls and ceilings of buildings, and for surface decoration of fittings, furniture, furniture, equipment housings, and the like. More specifically, the present invention relates to a decorative sheet having thermoformability suitable for being used by sticking to a surface of a three-dimensional base material.

[0002]

2. Description of the Related Art Conventionally, as a method of imparting designability to the surface of a three-dimensional object such as a wood-based processed product or a resin molded product, for example, a decorative sheet having thermoformability is heated and softened in a vacuum state. A so-called vacuum lamination method in which a decorative sheet having thermoformability is placed on the surface of an object by applying pressure so as to be closely adhered along the surface of the object, and heated and heated via an elastic body such as silicone rubber. A method has been used in which a decorative sheet that has been heated and softened by pressing is pressed into a concave portion on the surface of an object and then attached.

[0003] Since a decorative sheet used in such a decorative method is required to have sufficient thermoformability to be formed along the surface of a three-dimensional object, polychlorinated resin which is excellent in thermoformability is required. A decorative sheet using a vinyl resin film as a base film is most widely used.

However, since the above-mentioned polyvinyl chloride resin generates harmful gases such as hydrogen chloride during combustion, it has been pointed out that damages in the event of fire and environmental pollution at the time of incineration and disposal of plasticizers and monomers. It has many problems, such as causing health hazards to users due to volatilization, and heavy metals contained as stabilizers eluted from landfill disposal of incinerated ash, causing environmental pollution. The replacement by gentle materials is now a social demand.

[0005] However, as a base film of a decorative sheet used for decoratively applying the surface of an object having a three-dimensional shape, besides polyvinyl chloride resin, for example, polyethylene resin, polypropylene resin, polyethylene terephthalate resin, polystyrene resin, polyamide resin Methods for using various resin films, such as polyvinyl resins, and polyvinyl resins, have been studied. However, printing suitability required for decorative sheets, thermoformability (breaking resistance at softening temperature and heat softened state, flexibility In terms of uniformity, conformability, etc.) and economic efficiency, there is no product with performance equal to or higher than that of the polyvinyl chloride resin film. There was no reality.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art, and has the same performance as a conventional decorative sheet using a polyvinyl chloride resin film as a base film. Another object of the present invention is to provide a decorative sheet which is economical and free from concerns about health damage and environmental destruction, and which is suitable for sticking to the surface of a three-dimensional article.

[0007]

Means for Solving the Problems The decorative sheet of the present invention comprises:
Attached by thermoforming to the surface of a substrate having a three-dimensional shape
A decorative sheet for use, comprising propylene and
/ Or butene-1 component content is 50% by weight or more
Amorphous having a number average molecular weight of 1,000 to 200,000
20 to 100% by weight of crystalline polyolefin resin
Propylene resin and / or ethylene resin 80 to
Intermediate tree comprising olefin resin composition comprising 0%
On both sides of the fat layer, the backing layer and the base layer made of ethylene-based resin and / or the crystalline polypropylene it
Each layer is provided and has a concealing property by adding pigment
On the substrate layer surface of the sheet , a pattern layer, propylene and
/ Or butene-1 component content is 50% by weight or more
And 20 to 100% by weight of an amorphous polyolefin resin having a number average molecular weight of 1,000 to 200,000
Propylene resin and / or ethylene resin 80 to
An intermediate resin layer made of an olefin resin composition of 0% and a surface resin layer made of an ethylene resin and / or a crystalline polypropylene resin are sequentially laminated.
Having a total thickness of 10 to 300 μm,
Polyolefin resin and crystalline polypropylene resin and
And / or olefin resin group consisting of ethylene resin
The sum of the thicknesses of the layers composed of the product,
Layer composed of fat and / or crystalline polypropylene resin
And the ratio of the sum of the thicknesses to 1: 1 to 1: 4
It is a feature .

The method for producing a decorative sheet according to the present invention comprises
A method for producing a cosmetic sheet, comprising:
After forming a pattern layer, the intermediate resin layer, the surface resin layer and
Are laminated by a co-extrusion laminating method.
Is what you do .

The decorative member of the present invention has a three-dimensional shape.
On the surface of the substrate, paste the above decorative sheet by thermoforming
It becomes .

[0010]

[0011]

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A decorative sheet of the present invention has a pattern layer 2, an intermediate resin layer 3, and a surface resin layer 4 formed on a base layer 1, as shown in FIG. In particular, in the decorative sheet having a multilayer structure, the base layer 1 is made of an ethylene-based resin and / or a crystalline polypropylene resin, and the intermediate resin layer 3 is made of an olefin-based resin composition containing an amorphous polyolefin resin. The surface resin layer 4 is made of an ethylene resin and / or a crystalline polypropylene resin.

As described above, a resin film or sheet made of an ethylene resin and / or a crystalline polypropylene resin is used as the base layer 1. More specifically, examples of the ethylene-based resin include polyethylene resins such as low-density polyethylene resin, linear low-density polyethylene resin, ultra-low-density polyethylene resin, medium-density polyethylene resin, and high-density polyethylene resin, and ethylene and other olefins. , A vinyl ester or a saponified product thereof, a copolymer resin with an unsaturated carboxylic acid or an ester or a metal salt thereof, and the like. As a crystalline polypropylene resin, a boiling n-heptane-insoluble isotactic polypropylene resin or an isotactic polypropylene And a copolymer resin of other α-olefin can be suitably used.

Examples of the above-mentioned crystalline polypropylene resin and ethylene resin include unsaturated carboxylic acids or their esters, derivatives such as acid anhydrides and metal salts, unsaturated amides, amino compounds, glycidyl methacrylate, and the like. Those modified with hydroxymethacrylate or the like can also be used.

In addition, if necessary, the base material layer 1 may include, for example, a stabilizer, a plasticizer, an antioxidant, an antistatic agent, an adhesion aid,
Additives such as a filler, a colorant, and an extender may be appropriately added. The thickness of the base material layer 1 is not particularly limited, but is usually 10
３００300 μm, especially 30-150 μm
A range of about m is preferable.

The pattern layer 2 can be provided on the back side of the base material layer 1, that is, on the side opposite to the side on which the intermediate resin layer 3 and the surface resin layer 4 are provided. In order to prevent an abrasion accident and erosion by a solvent or the like contained in the adhesive at the time of sticking to the base material, the picture layer 2 is provided on the surface side of the base material layer 1, It is preferable to have a configuration sandwiched between them. When such a configuration is adopted, when the decorative sheet is required to have a hiding property, by using a white or colored opaque resin film as the base material layer 1,
Since the concealed solid printing layer can be omitted, it is preferable from the viewpoint of productivity and quality stability.

The pattern layer 2 can be formed in exactly the same manner as that of the conventional decorative sheet, for example, gravure printing, offset printing, screen printing, flexo printing, or the like.
Any conventionally known printing method such as a plateless printing method can be used. In the case of simply coloring,
Other than printing method, for example, gravure coating method, microgravure coating method, roll coating method, flow coating method, spray coating method, dip coating method, knife coating method, air knife coating method, rod coating method, kiss coating method, lip coating method Any conventionally known coating method such as a comma coating method can be used. As the material of the picture layer 2, any conventionally known printing ink, coating agent, paint, or the like can be used.

When forming the picture layer 2, the base layer 1 made of an ethylene resin and / or a crystalline polypropylene resin is used.
Has poor surface wettability, and it is often difficult to obtain sufficient adhesion of the picture layer 2. In such a case, the surface of the base material layer 1 on which the pattern layer 2 is formed is previously subjected to a surface treatment such as an anchoring treatment, a corona treatment, a frame treatment, an ozone treatment, an acid treatment, or irradiation with ionizing radiation such as ultraviolet rays or electron beams. It is preferable that the surface tension is approximately 36 dyne / c.
It is preferable to set m or more.

The material of the intermediate resin layer 3 is an olefin-based resin composition containing at least an amorphous polyolefin resin. More specifically, the insoluble content of Soxhlet extracted with boiling n-heptane is 70% by weight or less. 6
It is preferable that the content is 0% by weight or less from the viewpoint of securing flexibility. On the other hand, from the viewpoint of mechanical strength, the number average molecular weight is 10
00 to 200,000, more preferably 1500 to 1000
It is preferably in the range of 00.

Specific examples of the above amorphous polyolefin resin include atactic polypropylene resin, propylene / ethylene copolymer resin, and propylene / butene resin.
1 copolymer resin, propylene / butene-1 / ethylene terpolymer resin, propylene / hexene-1 / octene-1 terpolymer resin, propylene / hexene-1 / 4
-Methylpentene-1 terpolymer resin, polybutene-
1 resin, butene-1 · ethylene copolymer resin, butene
Amorphous olefin resins such as 1, hexene-1, octene-1 terpolymer, butene-1, hexene-1, 4-methylpentene-1 terpolymer, and the like; Two or more of them can be used by appropriately mixing.

However, if the ethylene content is too high,
The base film 1 becomes too soft, and the strength in the softened state by heating is reduced. On the other hand, if there are too many components that give a long side chain such as hexene-1, the flexibility of the base film 1 is lowered, and the softening temperature is raised, and the deformability in heating softened state and the shape following property are lowered. I do. Therefore, as the amorphous polyolefin resin, propylene and / or butene-
1 is the main component, and the content of both is most preferably 50% by weight or more.

The olefin resin composition containing the amorphous polyolefin resin constituting the intermediate resin layer 3 includes:
If necessary, a crystalline polypropylene resin and / or an ethylene-based resin can be added to adjust necessary physical properties such as flexibility, softening temperature, and deformability in a softened state. As the crystalline polypropylene resin or the ethylene-based resin, specifically, for example, the same resins as those described above as the resin constituting the base layer 1 can be used,
The resin may be the same or different from the resin used for the base layer 1.

Examples of the above-mentioned amorphous polyolefin resin, crystalline polypropylene resin and ethylene resin include unsaturated carboxylic acids or derivatives thereof such as esters, acid anhydrides and metal salts, unsaturated amides and amino acids. Those modified with a compound, glycidyl methacrylate, hydroxy methacrylate or the like can also be used.

When the above-mentioned crystalline polypropylene resin and / or ethylene resin is added to the resin composition constituting the intermediate resin layer 3, the content of the amorphous polyolefin resin is from 20 to 100% by weight, The content of the functional polypropylene resin and / or the ethylene resin is 80 to
It is preferred to be in the range of 0% by weight. When the content of the amorphous polyolefin resin is 20% by weight or less, it is difficult to obtain sufficient flexibility and thermoformability.

In addition, if necessary, additives such as a stabilizer, a plasticizer, an antioxidant, an antistatic agent, an ultraviolet absorber, an adhesion aid, a filler, a colorant, and an extender may be appropriately added. good. However, the intermediate resin layer 3 has at least the picture layer 2
It is necessary to provide transparency that can see through, but to that extent, it may be colored transparent or translucent.

As the ethylene resin and / or the crystalline polypropylene resin constituting the surface resin layer 4, the same resin as the resin constituting the base material layer 1 and the resin added to the intermediate resin layer 3 can be used. And the same resin or different resins. However, if the material and the thickness of the base material layer 1 and the surface resin layer 4 are extremely different, the decorative sheet may be warped due to a difference in the thermal expansion coefficient between the two, thereby deteriorating the applicability. Most preferably, the material layer 1 and the surface resin layer 4 are made of the same type of resin having the same thickness.

In addition, if necessary, the surface resin layer 4 may include, for example, a stabilizer, a plasticizer, an antioxidant, an antistatic agent, an ultraviolet absorber, an adhesion aid, a filler, a colorant, a body pigment, a lubricant,
Additives such as a lubricant and a gloss adjusting agent may be appropriately added. However, it is necessary that the surface resin layer 4 has at least transparency so that the pattern layer 2 can be seen through, but as long as the surface resin layer 4 is colored transparent or translucent.

In the present invention, the total thickness of the decorative sheet and the thickness of each of its constituent layers are not particularly limited, but generally, the total thickness of the decorative sheet is generally selected from a range of about 10 to 300 μm. Above all, there are many cases where the thickness is in the range of 50 to 200 μm. The thickness of each component layer is such that the greater the composition ratio of the intermediate resin layer 3 composed of the olefin-based resin composition containing the amorphous polyolefin resin, the greater the flexibility and heat deformability of the laminated film. As the composition ratio of the base material layer 1 and the surface resin layer 4 made of resin and / or crystalline polypropylene resin increases, a laminated film having high stiffness and high breaking strength can be obtained. By appropriately setting the composition ratio of both, The mechanical and thermal characteristics of the base film 1 can be adjusted.

In particular, in order to obtain characteristics close to those of a polyvinyl chloride resin film used as a base film of a conventional decorative sheet for three-dimensional molding, an olefin resin composition containing an amorphous polyolefin resin must be used. Thickness of the intermediate resin layer 3 and the base material layer 1 and the surface resin layer 4 made of ethylene resin and / or crystalline polypropylene resin.
It is preferable to select the ratio with the sum of the thicknesses from a range of about 4: 1 to 1: 4.

However, in order to satisfy surface properties such as abrasion resistance and scratch resistance required as a surface material of a decorative member, an ethylene resin and / or a crystalline polypropylene resin having excellent mechanical strength are required. It is advantageous to set the composition ratio of the layer composed of a relatively high value. Specifically, it is preferable to select the ratio from a range of about 1: 1 to 1: 4.

As shown in FIG. 2, the surface of the decorative sheet of the present invention can be embossed 5 as required to give a three-dimensional design. In the example shown in FIG.
Although the emboss 5 is provided only on the surface of the surface resin layer 4, the emboss 5 may be provided over an appropriate depth from the surface resin layer 5 to the intermediate layer 3, the picture layer 2, and the base material layer 1. it can. Further, as illustrated in FIG. 3, the groove of the emboss 5 may be filled with a coloring agent 6 by a wiping method or the like, or the top coat layer 7 may be applied to the entire surface as necessary.

In addition, when the ethylene resin or the crystalline polypropylene resin constituting the base layer 1 is made of a copolymer resin having a polar group or a modified resin, a general versatile resin film is used. When used, the adhesion to a general-purpose adhesive used for affixing to a substrate is often poor. Therefore, as shown in FIG. It is preferable to provide the primer layer 8 described above. As the primer layer 8, for example, a urethane resin,
Acrylic resin, ethylene-vinyl acetate copolymer resin,
Any conventionally known primer coating composed of a polyamide resin or the like can be suitably used.

In the present invention, the method of laminating the intermediate resin layer 3 and the surface resin layer 4 on the base material layer 1 is not particularly limited, and for example, a conventionally known arbitrary method such as a heat laminating method, a dry laminating method, and an extruding laminating method. Method is applicable,
Among them, the coextrusion lamination method using a multilayer extruder is most preferable because a decorative sheet excellent in productivity and excellent in adhesion between layers can be easily obtained. In particular,
When the embossing 5 needs to be formed on the surface, according to the method of applying the embossing 5 by the embossing roll at the same time as the co-extrusion laminating, it is not necessary to heat the sheet again for the embossing process, so that it can be efficiently manufactured. Therefore, it is most preferable.

Further, at the time of lamination, the bonding surface is subjected to a surface treatment such as application of an adhesive, an anchoring agent, a primer, etc., corona treatment, flame treatment, ozone treatment, acid treatment, or irradiation with ionizing radiation such as ultraviolet rays or electron beams. It is also optional to take measures to improve the adhesion between the constituent layers.

In addition to the above-described order of laminating the constituent layers of the decorative sheet of the present invention, the picture layer 2 may be provided between the intermediate resin layer 3 and the surface resin layer 4, as shown in FIG. . Also, for example, as shown in FIG. 6, it may be provided at two places between the base material layer 1 and the intermediate resin layer 3 and between the intermediate resin layer 3 and the surface resin layer 4. It is possible to obtain a decorative sheet having a design with a sense of feeling and a three-dimensional feeling and excellent in design.

Further, as shown in FIG. 7, for example, the intermediate resin layer 3 is provided on the back side of the base layer 1, and a back side resin layer 9 made of an ethylene resin and / or a crystalline polypropylene resin is further provided on the back side. It is good also as composition. In the decorative sheet having this configuration, the total thickness of the resin layers 1, 3, and 9 on the back side of the picture layer 2 can be relatively large, and a high concealing property can be obtained by adding a pigment such as titanium white to them. It is suitable for applications where concealability is particularly strictly required.

Conversely, as shown in FIG. 8, for example, the picture layer 2 is provided on the back side of the base layer 1, and a back side resin layer 9 made of ethylene resin and / or crystalline polypropylene resin is provided on the back side. It is good also as composition. In the decorative sheet of this configuration, since the total thickness of the resin layers 1, 3, and 4 on the surface side of the picture layer 2 can be relatively large, it is particularly required to use a deep embossing 5, and to have a high degree of painting and deep feeling. Suitable for various applications.

In addition, for example, as shown in FIGS.
Two or more intermediate resin layers 3 made of an olefin resin composition containing an amorphous polyolefin resin may be provided with a layer made of an ethylene resin and / or a crystalline polypropylene resin interposed therebetween. Such a configuration is particularly suitable for a thick decorative sheet in order to balance the flexibility and thermoformability of the sheet with the mechanical strength and waist.

In the decorative sheets having various layers as shown in FIGS. 5 to 10, the embossing 5, the filling of the coloring agent 6, the top coat layer 7, the primer layer 8 and the like may be appropriately performed. Needless to say, it may be applied.

The decorative sheet of the present invention can be obtained by attaching the decorative sheet of the present invention described above in detail to the surface of a base material for a decorative member via an adhesive or the like, if necessary. Here, as the base material for the decorative member, for example, a wood veneer,
Plywood, laminated materials, fiber boards, particle boards, and other wood-based materials, glass, ceramics, gypsum boards, calcium silicate boards, slag cement boards, slate boards, wood cement boards,
Inorganic base materials such as fiber reinforced concrete boards and lightweight cellular concrete boards, metal base materials such as iron, copper, aluminum, and stainless steel, and synthetic resins such as polyolefin resins, polystyrene resins, acrylic resins, ABS resins, and polycarbonate resins Conventionally known arbitrary materials such as a base material or the like, a mixture thereof, a composite, a laminate and the like can be used.

Since the decorative sheet of the present invention has excellent suitability for three-dimensional molding, a base material molded into a three-dimensional shape is used as the base material, and the base material is adhered along the surface thereof by a vacuum laminating method or the like. In a three-dimensional shaped decorative member that is stuck and attached, it demonstrates its true value. Of course, it is needless to say that the present invention may be applied to a simple flat base material, or may be applied to a columnar base material having irregularities on the surface by a lapping method or the like.

[0042]

【Example】

<Example 1> After a wood grain pattern was printed with a urethane-based ink on the corona-treated surface of a crystalline unstretched polypropylene film (manufactured by Nimura Chemical Industry Co., Ltd., Taiko FC) having a thickness of 80 µm,
An olefin-based resin composition containing amorphous polyolefin resin (trade name C, manufactured by Ube Lexen Co., Ltd.)
AP350) and a crystalline polypropylene resin (trade name: Hypol LA221, manufactured by Mitsui Petrochemical Industry Co., Ltd.) are laminated by co-extrusion to a thickness of 40 μm and 80 μm, respectively. The embossed groove is filled with a coloring agent by a wiping method, and a urethane-based top coat is further applied to the entire surface. Finally, a corona-treated urethane-based primer is applied to the back surface (trade name: Lamister, manufactured by Toyo Ink Mfg. Co., Ltd.). Coating was performed at a coating amount of 5 g / m ² after drying to obtain a decorative sheet of the present invention.

Thickness of 20 mm with frame-type cutting on the surface
A urethane-modified vinyl resin emulsion adhesive (manufactured by Konishi Co., Ltd., trade name: CVC555) is applied to the surface of a base material made of a medium-density fiberboard of 10 mm in an amount of 10 g / m ² after drying. According to the present invention, the sheet is closely adhered to the sheet under the same conditions as in the case of the conventional PVC decorative sheet (sheet heating temperature: 70 ° C., compressed air pressure: 2 kg / cm ² , pressure time: 110 seconds) by the vacuum / pressure molding method. Was obtained.

<Example 2> An olefin-based resin composition (CAP350, manufactured by Ube Lexen Co., Ltd.) containing an amorphous polyolefin resin having a thickness of 50 μm was placed on both sides of a crystalline polypropylene resin (Mitsui, 50 μm thick). One side of a laminated sheet formed by a three-layer co-extrusion method is corona-treated, and a wood pattern is printed with a urethane-based ink. , Crystalline polypropylene resin (manufactured by Mitsui Petrochemical Industry Co., Ltd., trade name: Hypole LA22)
1) was laminated by extrusion lamination to a thickness of 50 μm, and at the same time as the lamination, a conduit pattern was embossed on the surface, and the embossed groove was filled with a coloring agent by a wiping method.
Furthermore, a urethane-based top coat is applied to the entire surface, and finally, the back surface is subjected to corona treatment, and then a urethane-based primer (trade name: Lamister, manufactured by Toyo Ink Mfg. Co., Ltd.) is applied in an amount of 5 g after drying.
/ M ² to obtain a decorative sheet of the present invention.

Using the above decorative sheet, the following Example 1
A decorative member was obtained in the same manner as described above.

Example 3 An olefin resin composition (CAP350, manufactured by Ube Lexen Co., Ltd.) containing an amorphous polyolefin resin having a thickness of 40 μm was placed on the front and back of a crystalline polypropylene resin (Mitsui, 40 μm thick). One side of a laminated sheet formed by a three-layer co-extrusion method is corona-treated, and a wood grain pattern is printed with a urethane-based ink, as if sandwiched by Petrochemical Industry Co., Ltd., trade name: Hypole LA221). Olefin resin composition (product name: CAP350, manufactured by Ube Lexen Co., Ltd.) containing amorphous polyolefin resin; and crystalline polypropylene resin (product name: Hypol LA22, manufactured by Mitsui Petrochemical Co., Ltd.)
Each having a thickness of 40 μm, laminated by co-extrusion lamination, embossed with a conduit pattern on the surface simultaneously with the lamination, filled with a colorant into the embossed grooves by a wiping method, and further coated on the entire surface with a urethane-based material. Is applied, and a urethane-based primer (trade name: Lamister, manufactured by Toyo Ink Mfg. Co., Ltd.) is applied on the back surface to a coating amount of 5 g / m ² after drying to give the decorative sheet of the present invention. Obtained.

Using the above decorative sheet, the following Example 1
A decorative member was obtained in the same manner as described above.

[0048]

The decorative sheet according to the present invention is an intermediate resin comprising an olefin resin composition containing an ethylene-based resin and / or a crystalline polypropylene resin, a pattern layer, and an amorphous polyolefin resin. Layer and a surface resin layer made of an ethylene-based resin and / or a crystalline polypropylene resin, the structure is equivalent to that of a conventional polyvinyl chloride resin-based decorative sheet in terms of flexibility and thermoformability. It has high performance and is suitable for use by sticking to the surface of a substrate having a three-dimensional shape, and since the surface is a polyolefin resin, it has better solvent resistance and stain resistance than polyvinyl chloride resin. . In addition, there is no generation of harmful gases such as hydrogen chloride during combustion, which has been regarded as a major problem with conventional polyvinyl chloride resin, and incineration is easy. It meets social demands such as problems.

In particular, since the picture layer is provided between the base material layer and the intermediate resin layer, it is possible to prevent the picture layer 2 from being abraded during the process and to prevent the adhesive from sticking to the base material. Erosion or the like by the contained solvent or the like can be prevented.

More particularly, the intermediate resin layer is formed by adding 20 to 100% by weight of an amorphous polyolefin resin having a propylene and / or butene-1 component content of 50% by weight or more.
A decorative sheet having the same mechanical and thermal properties as a polyvinyl chloride resin-based decorative sheet can be easily formed by comprising a resin composition containing 80 to 0% by weight of a crystalline polypropylene resin and / or an ethylene-based resin. Can be realized.

In the method for producing a decorative sheet according to the present invention, a pattern layer is formed on a base layer made of an ethylene-based resin and / or a crystalline polypropylene resin, and then an olefin-based resin composition containing an amorphous polyolefin resin is formed. By laminating an intermediate resin layer and a surface resin layer made of an ethylene-based resin and / or a crystalline polypropylene resin by a co-extrusion lamination method, a decorative sheet having excellent adhesion between layers can be easily manufactured with good productivity. be able to.

Since the decorative member of the present invention is constituted by attaching the decorative sheet to the surface of the base material for decorative member, the decorative member can be easily manufactured with high productivity as in the case of the conventional PVC decorative member, and has a high durability. It is excellent in solvent properties and pollution resistance, has no risk of generating harmful gas even when incinerated, and can contribute to solving environmental problems and waste disposal problems.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a decorative sheet of the present invention.

FIG. 2 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 3 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 4 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 5 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 6 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 7 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 8 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 9 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

FIG. 10 is a side sectional view showing an embodiment of the decorative sheet of the present invention.

[Explanation of symbols]

 1 Base layer 2 Picture layer 3 Intermediate resin layer 4 Surface resin layer 5 Emboss 6 Colorant 7 Top coat layer 8 Primer layer 9 Back resin layer

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-230113 (JP, A) JP-A-7-314621 (JP, A) JP-A-7-276588 (JP, A) 255053 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B32B 1/00-35/00

Claims (3)

(57) [Claims] 1. A propylene and / or butene-1 component
The content is 50% by weight or more and the number average molecular weight is 100
Amorphous polyolefin resin 20 of 0 to 200,000
To 100% by weight of the crystalline polypropylene resin and / or
Or an olefin comprising 80 to 0% of an ethylene resin
On both sides of an intermediate resin layer composed of an epoxy resin composition, an ethylene resin and / or a crystalline polypropylene resin
A backside resin layer and a base material layer are provided respectively,
On the base material layer surface of the laminated sheet having a concealing property by addition ,
Picture layer, containing propylene and / or butene-1 component
Prevalence is 50% by weight or more and number average molecular weight is 1000
~ 200000 amorphous polyolefin resin 20 ~
100% by weight of the crystalline polypropylene resin and / or
Or an intermediate resin layer composed of an olefin resin composition composed of 80 to 0% of an ethylene resin, and a surface resin layer composed of an ethylene resin and / or a crystalline polypropylene resin, which are sequentially laminated to form a total thickness. 10-300 μm
And the two layers of amorphous polyolefin resin and crystalline polyolefin resin.
From propylene resin and / or ethylene resin
The sum of the thickness of the layer comprising the olefin resin composition,
The three layers of ethylene resin and / or crystalline polyp;
The ratio of the thickness of the layer made of the propylene resin to the sum of the thicknesses is 1:
It has a three-dimensional shape characterized by being 1-1: 4
For use by attaching to the surface of a substrate by thermoforming
Cosmetic sheet . 2. The method for producing a decorative sheet according to claim 1, wherein
There, after forming a pattern layer on one side of the laminated sheet, the
Co-extrusion laminating the intermediate resin layer and the surface resin layer
Production of decorative sheets characterized by lamination by the printing method
How . 3. The method according to claim 1, wherein the surface of the substrate having a three-dimensional shape is provided on the surface of the substrate.
A makeup obtained by sticking the makeup sheet according to 1 by thermoforming.
Components .