KR20050036965A - Wallpaper and method for production thereof - Google Patents

Abstract

A wallpaper, characterized in that it comprises a substrate (A) and, laminated thereon, a foamed resin layer (B) formed from a polyolefin resin composition comprising 100 parts by weight of a polyolefin resin (b- 1) and 20 to 200 parts by weight of a flame retardant and/or an inorganic filler and, laminated on the foamed resin layer (B), a printed layer and further a polyolefin film (C) laminated on the printed layer. The wallpaper is excellent in the resistance to scratching and staining and the easiness in the removal of stains.

Description

Wallpaper and its manufacturing method {Wallpaper and Method for Production Thereof}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wallpaper for pasting on walls, ceilings, and the like, and more particularly to wallpaper having excellent scratch resistance, fouling resistance, and decontamination property, and a method for producing the same.

The wallpaper is a structure in which a synthetic resin sheet is bonded to the surface side on the paper substrate, but the wallpaper obtained by bonding the synthetic resin sheet to the surface side on the paper substrate is scratch-resistant and fouling-resistant (also called antifouling). Since the decontamination property is inferior, the method of improving these is examined.

Japanese Laid-Open Patent Publication No. 2001-260287 discloses a wallpaper in which an ethylene-vinyl alcohol copolymer resin film is laminated on a foamed resin layer.

Such wallpaper has excellent stain resistance and the like, but is still insufficient in practical use, and further improvement is desired. Moreover, it cannot be said that it is sufficient also about the adhesive strength of a foamed resin layer and a film layer, The adhesive agent was needed between such layers.

Japanese Patent Laid-Open No. 10-278199 discloses a wallpaper in which a foamed resin layer, a non-foamed thermoplastic resin layer, and a printed layer are laminated in this order. However, also in the method according to the publication, since the adhesive strength between the foamed resin layer and the non-foamed thermoplastic resin layer is insufficient, it is necessary to provide an adhesive layer such as an adhesive between the layers, and there is a concern about environmental pollution due to the use of the adhesive. In addition, since the printing layer is on the surface of the wallpaper, there is a problem that peeling of the printing ink and contamination of the wallpaper surface are likely.

MEANS TO SOLVE THE PROBLEM The present inventors solved the said subject by laminating | stacking a polyolefin film in the specific foamed resin layer with respect to the wallpaper excellent in scratch resistance, stain resistance, and contamination removal property, and came to complete this invention.

That is, this invention is a foamed resin layer formed on the base material (A) from the polyolefin resin composition containing 20-200 weight part of a flame retardant and / or an inorganic filler with respect to 100 weight part of polyolefin resin (b-1). The laminated body in which (B) was laminated | stacked, The printing layer is laminated | stacked and the polyolefin film (C) is laminated | stacked on this printing layer, and it is related with the wallpaper, and its manufacturing method characterized by the above-mentioned.

Best Mode for Carrying Out the Invention

In the present invention, a printed layer is laminated on a laminate foamed resin layer in which a foamed resin layer (B) formed from a polyolefin resin composition is laminated on a substrate (A), and a polyolefin film (C) is laminated on the printed layer. It is related with the wallpaper characterized by being manufactured.

Substrate (A)

As a base material (A) in the wallpaper of this invention, a paper base material and a nonwoven fabric are generally used. As a paper base material, the paper made from natural pulp or a synthetic pulp, the paper mixed with an inorganic substance, etc. are selected according to the purpose of using a wallpaper. The foamed resin layer (B) (hereinafter sometimes referred to as foamed resin sheet (layer)) can be used for general purposes even if the material itself has water resistance and flame retardancy without requiring the properties of the paper substrate in particular. As a base material (A), it is preferable to use a flame-retardant paper containing an inorganic substance, for example, a paper containing aluminum hydroxide, etc., in order to improve safety, and to improve safety.

Polyolefin resin composition which comprises foamed resin layer (B)

The foamed resin layer (B) laminated | stacked on the said base material (A) and which comprises the wallpaper of this invention is formed from a polyolefin resin composition. The polyolefin resin composition is formed from a polyolefin resin composition comprising 20 to 200 parts by weight of a flame retardant and / or inorganic filler with respect to 100 parts by weight of polyolefin resin (b-1).

The polyolefin resin (b-1) is preferably an ethylene-based (co) polymer. Specific examples of the ethylene-based (co) polymer include high density polyethylene, high pressure low density polyethylene, copolymers of ethylene and α-olefins having 3 to 20 carbon atoms, ethylene-vinyl acetate copolymers, ethylene-methyl acrylate copolymers, and ethylene-acrylic acid Ethyl copolymer etc. or a mixture thereof is mentioned.

The density of the ethylene-based (co) polymer is 0.850 to 0.990 g / cm ³ , the melt flow rate (ASTM D1238, 190 ℃, 2.16 kg load, abbreviated as MFR) is used in the range of 0.1 to 100 g / min .

More preferred polyolefin resin (b-1) has a density of 0.850 to 0.900 g / cm ³ , 50 to 90% by weight of at least one ethylene-α-olefin copolymer having a MFR in the range of 0.1 to 10 g / 10 min and a density of 0.910. To 0.940 g / cm ³ , MFR comprises 10 to 50% by weight of one or more high pressure low density polyethylene in the range of 0.1 to 50 g / 10 minutes.

Examples of the α-olefins in the ethylene-α-olefin copolymer include α-olefins having 3 to 20 carbon atoms, preferably propylene, 1-butene, 1-hexene, 1-octene, and more preferably 1 -Butene. The α-olefin content in the ethylene-α-olefin copolymer is 5 to 50 mol%, preferably 10 to 30 mol%.

By using such a preferable polyolefin resin composition as a foam sheet layer, a wallpaper excellent in moldability, foamability, flexibility, adhesive strength with the base material (A), adhesive strength with a printing layer and a polyolefin film (C) can be obtained.

Tackifier

The polyolefin resin composition which comprises a foamed resin layer (B) may contain a tackifier (b-2). A tackifier (b-2) is a hydrocarbon resin whose glass transition point exists in 20-140 degreeC, Preferably it is 40-120 degreeC, and a number average molecular weight is 1200 or less, Preferably it is 600-1000. If the glass transition point is higher than 140 ° C, the rigidity of the foamed resin sheet obtained is high, and the flexibility is impaired, which is not preferable. It is not preferable that the glass transition point is lower than 20 ° C because the foamed resin sheet surface sticks. Specifically, alkylphenol resins, alkylphenol-acetylene resins, xylene resins, petroleum resins, chromman-indene resins, terpene resin rosin and the like having the glass transition point and molecular weight can be used. Moreover, the alicyclic saturated hydrocarbon which hydrogenated (hydrogenated) each said resin from the point of heat resistance and weather resistance is preferable, and the hydrogenated petroleum resin is especially preferable.

When the polyolefin resin composition which comprises a foamed resin layer (B) contains a tackifier (b-2), the mixing ratio of the said polyolefin resin (b-1) and a tackifier (b-2) is (b- 1) is 99.8 to 50% by weight, preferably 99.7 to 20% by weight, and (b-2) is 0.2 to 50% by weight, preferably 0.3 to 20% by weight. When a polyolefin resin composition contains a tackifier, adhesive strength with a polyolefin film (C) becomes higher and it is preferable.

Flame retardant and / or inorganic filler

Examples of the flame retardant include metal hydroxides such as aluminum hydroxide and magnesium hydroxide. Calcium carbonate, talc, barium sulfate, magnesium sulfate, etc. are mentioned as an inorganic filler. As the addition amount of the flame retardant and / or the inorganic filler to the polyolefin resin (b-1) and the tackifier (b-2), the flame retardant per 100 parts by weight of the total of (b-1) and (b-2) and / or The inorganic filler may be blended 20 to 200 parts by weight, preferably 30 to 150 parts by weight, more preferably 40 to 90 parts by weight. If the amount of the flame retardant and / or the inorganic filler is more than 200 parts by weight, the moldability and foamability of the foamed resin layer may be inferior or the adhesive strength with the polyolefin film (C) is insufficient, and if it is less than 20 parts by weight, the flame retardancy is insufficient. Not desirable

By using such a resin composition as a foamed resin layer, the adhesive strength with the polyolefin film mentioned later improves. Such resin compositions include other synthetic resins, rubbers or antioxidants, heat stabilizers, weather stabilizers, slip agents, anti blocking agents, crystal nucleating agents, and the like, and hydrochloric acid absorbents, as necessary, within the range of not impairing the performance as the wallpaper of the present invention. May include additives.

Further, various components of the polyolefin resin composition and, if necessary, various additives are blended with a mixer such as a Henschel mixer, a Benbury mixer, a tumbler mixer, a roll or an extruder, and the like, such as calender molding and T-die molding. It can be made into a sheet by providing it to a known sheet molding machine.

A foaming agent is added to such a resin layer, and it foams according to foaming temperature and pressure conditions, and turns into a foaming resin layer. As a manufacturing method of a foaming resin layer, the method of shape | molding an unfoamed sheet once from the resin composition which added the foaming agent previously, raising a temperature after that, and changing into a foaming resin sheet can also be employ | adopted, or from the resin composition which added the foaming agent It may be a method of directly obtaining a foamed resin sheet.

blowing agent

The blowing agent which can be used is suitably selected from a chemical blowing agent and a gas blowing agent (physical blowing agent) based on the shaping | molding method and molding temperature of foamed resin sheet.

Examples of chemical blowing agents include azo compounds such as azodicarboxyamide and azobisisobutyronitrile, hydra such as benzosulfonylhydrazide, toluenesulfonylhydrazide, and p, p'-oxybis (benzenesulfonylhydrazide). Nitroso compounds, such as a zide compound and dinitrosopentamethylenetetramine, or a mixture thereof, etc. can be illustrated, and these are what generate | occur | produce themselves by shaping | molding on foaming conditions, and generate gas for foam molding. Moreover, foaming aid can also be used with such a foaming agent as needed. Examples of the foaming aid include zinc compounds such as zinc oxide and zinc stearate, and organic acids such as salicylic acid, phthalic acid and oxalic acid.

As the gas blowing agent (physical blowing agent), hydrocarbons such as carbon dioxide gas, halogenated hydrocarbons such as difluorodichloromethane, butane, pentane, hexane, cyclobutane, cyclohexane and the like can be exemplified. It contributes to foam molding. As a gas blowing agent (physical blowing agent), carbon dioxide gas, butane gas, freon gas, etc. are suitable. A foaming agent may use one type or may use multiple types together.

Foamed resin layer (B)

In the molding of a foam sheet, a method of producing a foamed resin sheet by molding a non-foamed resin sheet once using a roll or a T-die from a resin composition to which a foaming agent is added, and then transferring the resin sheet under foam molding conditions. In the case of, the use of a chemical blowing agent is more preferable than a gas blowing agent. Foam molding can be performed using an air oven or a heating roll.

On the other hand, in the case of supplying the resin composition to the extruder and simultaneously injecting the blowing agent from a separate supply port of the extruder and molding the foamed resin sheet directly from the die, a gas blowing agent (physical blowing agent) is generally used. Moreover, the resin composition which added the chemical foaming agent previously can be supplied to an extruder, and similarly, a foamed resin sheet can be taken out directly from a die | dye. By adding a well-known blowing agent and foaming, it becomes foamed resin layer (B) of the wallpaper of this invention. The thickness of the foamed resin layer (B) is usually 0.1 to 2 mm, preferably 0.2 to 1 mm.

Lamination

Thus, the foamed resin sheet obtained becomes a laminated body which is a part of the structure of this invention by laminating | stacking with base materials (A), such as paper mentioned above.

In the production of the laminate of the base material (A) and the foamed resin layer (B), for example, a resin sheet previously foamed and molded on the paper base material may be superimposed, and both layers may be laminated using an adhesive, or melted polyethylene It is also possible to compress the laminate by extruding the resin or the like between the layers. In addition, as another method, a non-foamed resin sheet previously molded on a paper substrate is laminated and laminated, or an unfoamed resin sheet is laminated on a paper substrate, and then the laminate is passed through a heating furnace or a heating roll. It is made to foam by putting under foaming conditions, etc., and the laminated body which foamed resin sheet laminated | stacked on the paper base material can be obtained. In addition, the resin composition to which the foaming agent was added can be laminated on a paper base material directly from an extruder or a calender roll, and can be laminated | stacked.

As a method of providing a wallpaper by providing a printing layer on the surface of the laminated body of the base material (A) and the foamed resin layer (B) thus obtained, and laminating the polyolefin film (C) on the printed layer. Although there will be no restriction | limiting in particular if the base material (A) / foaming resin layer (B) / printing layer / polyolefin film (C) becomes a method in this order, Specifically, the following methods are mentioned.

① Laminated body of base material (A) and foamed resin layer (B) Printing is performed on the surface of the foamed resin layer (B), and after embossing or crimping on it, the method of laminating | stacking with the polyolefin film (C) mentioned later. (2) Lamination of base material (A) and foamed resin layer (B) Printing is performed on the surface of the foamed resin layer (B), and the polyolefin film (C) described later is laminated on this printed layer, followed by embossing or wrinkle processing. Way. (3) A method of laminating a polyolefin film (C) on which the printing has been carried out on the surface of the foamed resin layer (B) after embossing or crimping the laminate of the base material (A) and the foamed resin layer (B). (4) A method of embossing or creasing after laminating a polyolefin film (C) on which the printing has been carried out on the surface of the foamed resin layer (B) of the laminate of the base material (A) and the foamed resin layer (B).

Polyolefin Film (C)

In this invention, the method of laminating | stacking the polyolefin film mentioned later after printing on a foamed resin layer (B) is preferable. By doing so, the protection of a printing surface improves and peeling of a printing ink etc. can be prevented.

The wallpaper of the present invention is obtained by further laminating a polyolefin film (C) on the laminate foamed resin layer (B). Specific examples of the polyolefin film (C) include polyethylene films (e.g., high density polyethylene films, low density polyethylene films, etc.), polypropylene films (e.g., biaxially stretched polypropylene films or unstretched polypropylene films), ethylene and unsaturated carbon A film formed from a copolymer of an acid ester (for example, an ethylene-vinyl acetate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-methyl methacrylate copolymer, etc.), a copolymer of ethylene with an unsaturated carboxylic acid ( For example, the film formed from ethylene-acrylic acid copolymer, the ethylene-methacrylic acid copolymer, etc.), and the film formed from ionomer resin are mentioned.

Moreover, in this invention, the film formed from the resin composition containing a polyolefin and a tackifier can also be used suitably as a polyolefin film (C). Specific examples of the polyolefin include polypropylene and ethylene-based (co) polymers. Preferably an ethylene-based (co) polymer. Specific examples of the ethylene-based (co) polymer include high density polyethylene, high pressure low density polyethylene, copolymers of ethylene and α-olefins having 3 to 20 carbon atoms, ethylene-vinyl acetate copolymers, ethylene-methyl acrylate copolymers, and ethylene-acrylic acid Ethylene, an unsaturated carboxylic acid ester copolymer, or a mixture thereof, such as an ethyl copolymer and an ethylene-methacrylic acid copolymer, is mentioned.

The density of the ethylene-based (co) polymer is preferably 0.880 to 0.960 g / cm ³ , and 0.890 to 0.950 g / cm ³ in the case of the copolymer of ethylene and an α-olefin. In the case of ethylene and an unsaturated carboxylic acid ester copolymer, 0.910 to 0.980 g / cm ³ and also 0.920 to 0.970 g / cm ³ are preferable. In addition, the molecular weight MFR (ASTM D1238, 190 ° C, 2.16 kg load) of the ethylene-based (co) polymer is preferably 0.5 to 70 g / 10 minutes, and further preferably 1 to 50 g / 10 minutes.

The polyolefin film (C) may contain a tackifier. When a tackifier is contained in a polyolefin film (C), since adhesiveness with a foamed resin layer (B) becomes excellent, it is preferable. Here, a tackifier and the above-mentioned tackifier (b-2) are used by the same meaning.

A tackifier is a hydrocarbon resin whose glass transition point exists in 20-140 degreeC, Preferably it is 40-120 degreeC, and a number average molecular weight is 1200 or less, Preferably it is 600-1000. If the glass transition point is higher than 140 ° C., the rigidity of the resulting film is high and the flexibility is impaired, which is not preferable. It is not preferable that the glass transition point is lower than 20 ° C. because the film surface sticks. Specifically, alkylphenol resins, alkylphenol-acetylene resins, xylene resins, petroleum resins, chromman-indene resins, terpene resins, rosins and the like having the glass transition point and molecular weight can be used. From the viewpoint of heat resistance and weather resistance, alicyclic saturated hydrocarbons obtained by hydrogenation (hydrogenation) of the above resins are preferred, and hydrogenated petroleum resins are particularly preferred.

When the polyolefin film (C) contains a tackifier, the mixing ratio of the polyolefin and the tackifier is 50 to 99.8% by weight of polyolefin, preferably 60 to 99.7% by weight, more preferably 70 to 99.5% by weight. In the range, the tackifier is 0.2 to 50% by weight, preferably 0.3 to 40% by weight, more preferably 0.5 to 30% by weight. In this resin composition, additives, such as another synthetic resin and rubber | gum, an antioxidant, a heat stabilizer, a weather stabilizer, a slip agent, an anti blocking agent, a hydrochloric acid absorber, a crystal nucleating agent, etc. can be contained as needed. . In particular, an antistatic agent may be added for the purpose of preventing dust adhesion, or a pigment or an inorganic filler may be added for the purpose of improving the surface gloss.

As a method of laminating | stacking a polyolefin film (C) to the said foamed resin layer, the method of laminating | stacking a polyolefin film and / or a foamed resin layer with a heat roll etc., and laminating | stacking by heat, or the raw resin or resin composition of a polyolefin film The extrusion lamination method which laminates with a foamed resin layer in the state of extrusion from a die and molten resin can be used. Among them, the extruded lamination method can be preferably used because of the fact that the curled wallpaper has less curl and higher adhesive strength. In this invention, 2 or more types of polyolefin films can be laminated | stacked and used.

The thickness of the polyolefin film (C) layer is 1 to 30 µm, preferably 2 to 20 µm.

Next, although an Example demonstrates this invention, this invention is not limited to this.

<Example 1>

MFR (190 ° C.) is 3.6 g / 10 min, ethylene / 1-butene random copolymer having a density of 0.860 g / cm ³ (1-butene content 19 mol%) 70% by weight, MFR (190 ° C.) is 9.5 g / 10 minutes, 30% by weight of a high-pressure method low density polyethylene having a density of 0.917 g / cm ³ , 70 parts by weight of magnesium hydroxide having an average particle diameter of 0.8 μm to these 100 parts by weight, and 5 parts by weight of azodicarboxyamide as a blowing agent, The unfoamed resin sheet with a thickness of 130 µm was obtained at a die temperature of 140 ° C. using a T-die molding machine having a 40 mmφ extruder. The obtained non-foamed resin sheet was bonded to a paper substrate (normal paper) having a basis weight of 65 g / m ² by heating at 140 ° C. Furthermore, the laminated body of 4.5 times the foaming ratio of foamed resin layer was obtained by passing this for 2 minutes through the continuous foaming furnace set to 210 degreeC.

In addition, primer processing and gravure printing were performed to the foamed resin layer surface of the obtained laminated body.

Next, as an extrusion laminating machine having a die width of 500 mm having a 65 mmφ extruder, a density of 0.946 g / cm ³ and MFR (190 ° C.) were used for a low density polyethylene having a 9 g / 10 min. Resin temperature of 290 ° C. and a speed of 80. Extrusion lamination was performed to the printing surface of the said laminated body obtained by m / min, and wallpaper was obtained. The laminated polyolefin film thickness was 10 micrometers. The following evaluation was performed using the obtained wallpaper.

The results are shown in Table 1.

Scratches: The surface and the inside of the wallpaper were rubbed with each other, and the polyolefin film surface was observed to make a scratch evaluation.

Adhesive strength: The wallpaper sample is made into an elongated paper shape of 15 mm, the interlayer between the polyolefin film and the foamed resin layer is peeled off at a rate of 300 mm / min in the direction of 180 degrees, and the peel strength at that time is measured to obtain an adhesive strength. It was.

Curl: The degree of warpage in the TD direction of the wallpaper sample was observed, and the curl was evaluated.

<Example 2>

A wallpaper was obtained in the same manner as in Example 1 except that the thickness of the polyolefin film was 20 μm. Table 1 shows the evaluation results of the obtained wallpaper.

Comparative Example 1

In Example 1, when wound property evaluation was performed using the laminated body before laminating a polyolefin film, a wound was seen in the foamed resin layer.

<Example 3>

As a polyolefin for a film, it was carried out similarly to Example 1 except having used the ethylene-ethyl acrylate copolymer of density 0.940g / cm <^3> , MFR (190 degreeC) 5g / 10min, and the ethyl acrylate content 19weight%. Got.

Table 1 shows the evaluation results of the obtained wallpaper.

<Example 4>

A wallpaper was obtained in the same manner as in Example 3 except that the thickness of the polyolefin film was 20 μm. Table 1 shows the evaluation results of the obtained wallpaper.

Example 5

As the polyolefin for the film, the same procedure as in Example 1 was conducted except that an ethylene-methacrylic acid copolymer having a density of 0.930 g / cm ³ , MFR (190 ° C.) of 8 g / 10 minutes, and a methacrylic acid content of 9% by weight was used. Obtained a wallpaper.

Table 1 shows the evaluation results of the obtained wallpaper.

<Example 6>

A wallpaper was obtained in the same manner as in Example 5 except that the thickness of the polyolefin film was 20 μm. Table 1 shows the evaluation results of the obtained wallpaper.

<Example 7>

As polyolefin for films, the ethylene-vinyl acetate copolymer having a density of 0.930 g / cm ³ , MFR (190 ° C) of 15 g / 10 minutes and a vinyl acetate content of 14% by weight was used, except that the resin temperature was 230 ° C. A wallpaper was obtained in the same manner as in Example 1. Table 1 shows the evaluation results of the obtained wallpaper.

<Example 8>

A wallpaper was obtained in the same manner as in Example 7 except that the thickness of the polyolefin film was 20 µm. Table 1 shows the evaluation results of the obtained wallpaper.

Example 9

Examples of the polyolefin for the film except that a density of 0.940 g / cm ³ , MFR (190 ° C.) were used for 5 g / 10 minutes and a zinc ion type ionomer resin (trade name Himiran 1652 manufactured by Mitsui DuPont Polychemical Co., Ltd.) were used. In the same manner as 1, a wallpaper was obtained. Table 1 shows the evaluation results of the obtained wallpaper.

<Example 10>

A wallpaper was obtained in the same manner as in Example 9 except that the thickness of the polyolefin film was 20 µm. Table 1 shows the evaluation results of the obtained wallpaper.

<Example 11>

A die stacking machine with a die width of 500 mm with a 65 mm diameter extruder, with a density of 0.946 g / cm ³ , MFR (190 ° C.) of 93 g% of polyethylene at 9 g / 10 min, and a tackifier (Araka and Kagaku Arcon). Extrusion lamination | stacking on the printing surface of the said laminated body using resin composition containing P-125 (number average molecular weight 820, glass transition point 80 degreeC)) 7weight%, and resin temperature 290 degreeC and taking-up speed | rate 80 m / min. Was done to obtain wallpaper. The laminated polyolefin film thickness was 8 m. Table 1 shows the evaluation results of the obtained wallpaper.

Comparative Example 2

A wallpaper was obtained in the same manner as in Example 1 except that the amount of magnesium hydroxide added was 120 parts by weight. Table 1 shows the evaluation results of the obtained wallpaper.

The characteristic of this invention is making the said specific resin composition into a foamed resin layer (B), and providing a printing layer between a polyolefin film (C) and laminating | stacking, and between a foamed resin layer (B) and a printing layer (foamed resin layer (B) / printed layer) or foamed resin layer (B) / printed layer or printed layer / polyolefin film (C) or foamed water without using an adhesive between the printing layer and the polyolefin film (printing layer / polyolefin film). A wallpaper having sufficient adhesive strength between the layers of the layer layer (B) / polyolefin film (C) is obtained. Moreover, this invention obtains the wallpaper with sufficient adhesive strength with a polyolefin film (C), without using an adhesive agent even if it uses the foamed resin layer (B) which performed printing. Generally, when printing is performed and a polyolefin film is laminated | stacked on a resin molded object, the adhesive strength is not enough and an adhesive agent is needed. In the method of this invention, since an adhesive agent is not needed, there are few volatile components resulting from a residual organic solvent etc., too. Moreover, since the printing layer is protected by the polyolefin film (C) by setting it as the layer structure of a base material (A) / foaming resin layer (B) / printing layer / polyolefin film (C), there is no peeling of printing ink and a wallpaper surface This has the advantage of being difficult to pollute (pollution) and easy to drop attached contaminants (decontamination).

Claims (7)

The laminated body which laminated | stacked the foamed resin layer (B) formed from the polyolefin resin composition containing 20-200 weight part of a flame retardant and / or an inorganic filler with respect to 100 weight part of polyolefin resin (b-1) on the base material (A). A printed layer is laminated | stacked on a foamed resin layer (B), and a polyolefin film (C) is laminated | stacked on this printed layer, and is produced, The wallpaper characterized by the above-mentioned. The wallpaper according to claim 1, wherein the polyolefin resin (b-1) is an ethylene-based (co) polymer in the range of 0.1 to 100 g / 10 minutes of melt flow rate. The at least one ethylene-α-olefin copolymer according to claim 1, wherein the polyolefin resin (b-1) has a density of 0.850 to 0.900 g / cm ³ and a melt flow rate of 0.01 to 100 g / 1O minutes. 10 to 50 parts by weight of at least one high-pressure low density polyethylene in the range of 50 to 90 parts by weight and a density of 0.910 to 0.940 g / cm ³ . The wallpaper according to any one of claims 1 to 3, wherein the polyolefin film (C) is a polyethylene film. The polyolefin film (C) according to any one of claims 1 to 3, wherein the polyolefin film (C) is at least one selected from a copolymer of ethylene and an unsaturated carboxylic acid, a copolymer of ethylene and an unsaturated carboxylic acid ester or an ionomer resin. Wallpaper characterized in that it is a film formed from. The wallpaper according to any one of claims 1 to 5, wherein a tackifier is included in at least one of the polyolefin resin composition or the polyolefin film (C) constituting the foamed resin layer (B). The laminated body which laminated | stacked the foamed resin layer (B) formed from the polyolefin resin composition containing 20-200 weight part of a flame retardant and / or an inorganic filler with respect to 100 weight part of polyolefin resin (b-1) on the base material (A). The polyolefin film (C) is laminated | stacked by the extrusion lamination method to the manufacturing method of the wallpaper in any one of Claims 1-6 characterized by the above-mentioned.