JP3482303B2 - Olefin resin composition, wallpaper and method for producing wallpaper - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper and a method for manufacturing the wallpaper, and more specifically, it is an environment-friendly and safe wallpaper that does not generate gas or the like that pollutes the environment at the time of combustion, and is excellent in volume and touch. Also, the present invention relates to a method for producing a wallpaper, which enables easy and convenient production of the wallpaper.

[0002]

2. Description of the Related Art Conventionally, wallpaper made of vinyl chloride resin has been widely provided for reasons of cost, workability, flame retardancy, etc. Hydrogen gas or the like may damage the incinerator or pollute the environment, which is not preferable in terms of safety and environment. Therefore, in recent years, wallpaper made of an olefin resin sheet or an acrylic resin emulsion foam sheet instead of the vinyl chloride resin is disclosed, for example, in JP-A-5-59229, JP-A-6-33943, and JP-A-6-4787.
No. 5, Japanese Patent Application Laid-Open No. 5-200948, and the like.

However, in the case of a wallpaper made of an olefin resin sheet, unlike a vinyl chloride resin, an olefin resin has high roll adhesiveness and is not suitable for calendar processing. Calendering tends to cause heat discoloration,
The processing temperature is limited to a narrow range. Therefore, addition of a special processing aid is indispensable when performing roll processing.
Further, it is more difficult to adjust the texture as compared with vinyl chloride resin. Since the olefin resin has a high shrinkability, there is a problem that it tends to curl when laminated on a backing paper. On the other hand, in the case of wallpaper made of acrylic resin emulsion foam sheet,
It is necessary to use a special backing paper with water resistance. Since it is an emulsion, the surface is sticky and the wallpaper is not flexible enough. The expansion ratio is not sufficient. It is necessary to use microcapsules as a foaming agent, and as a result, there is a problem that surface strength is lowered, stains easily occur, and cost becomes high.

Under these circumstances, flame-retardant wallpaper made by foaming ethylene / α-olefin has been proposed. However, in this case, the melting point of the ethylene / α-olefin used is high, and it is very difficult to carry out calendering while suppressing decomposition of the foaming agent. Therefore, the proposed wallpaper has a problem that it is not suitable for calendar processing and film formation and simultaneous foaming processing by inflation molding are performed, and as a result, foamability is reduced.

Therefore, an olefin resin composition having the same calendering suitability and foaming property as those of the vinyl chloride resin composition and suitable for wallpaper etc. has not yet been provided, and such an olefin resin composition is not provided. Has a foam layer according to
The actual situation is that a wallpaper excellent in volume and touch has not been provided yet, and a simple method for producing the wallpaper has not been provided yet.

[0006]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and the gas or the like generated during combustion does not damage the incinerator or pollute the environment, so it is environmentally friendly and safe. It is an object of the present invention to provide a wallpaper having an excellent volume feeling and a touch, and a method for manufacturing the wallpaper, which allows the wallpaper to be easily and conveniently manufactured.

[0007]

Means for solving the above-mentioned problems are as follows. That is, the olefin resin composition in the wallpaper of the present invention has a density of 0.89 g / cm.
³ or less and a melt index of 0.5 to 10
It is characterized by containing an olefin-based resin containing ethylene / α-olefin copolymer as a main component at g / 10 minutes and a metal hydrate. In the olefin resin composition, 1 part of the ethylene / α-olefin copolymer is used.
It is preferable to contain 00 parts by weight and 100 parts by weight or more of the metal hydrate.

A wallpaper characterized in that a foamed layer of the olefin resin composition is laminated on paper. In the wallpaper, the paper is preferably aluminum hydroxide paper.

A method for producing a wallpaper is characterized in that the olefin resin composition is laminated on paper and is foamed. Further, it is a method for producing a wallpaper, which is characterized in that the olefin resin composition is formed into a sheet, the foam is formed into a foam sheet, and the foam sheet is laminated on paper. In the method for producing the wallpaper, it is preferable that the lamination is a lamination by calendering. From the viewpoint of imparting flame retardancy, the paper is preferably aluminum hydroxide paper.

[0010]

DETAILED DESCRIPTION OF THE INVENTION

(Olefin-Based Resin Composition) The olefin-based resin composition of the present invention contains an olefin-based resin and a metal hydrate, and further contains other components as necessary.

The olefin-based resin contains a specific ethylene / α-olefin copolymer as a main component and, if necessary, further contains another olefin-based resin. The other olefin resin is not particularly limited and may be appropriately selected depending on the intended purpose, and may be a synthesized product or a commercially available product. In the olefin resin, the weight ratio of the ethylene / α-olefin copolymer to another olefin resin (ethylene / α-
As the olefin copolymer / other olefin resin), 80/20 to 100/0 is preferable, and 90/10 to
100/0 is more preferable, and 100/0 is particularly preferable. Also, as the weight ratio, the lower limit of any of the numerical ranges or the numerical value of the weight ratio adopted in any of the examples described later is used as the lower limit, and the upper limit of any of the numerical ranges or the implementation described below. Also preferred is a numerical range with the upper limit being the numerical value of the weight ratio employed in any of the examples. When the weight ratio is out of the above numerical range, curling due to shrinkage is increased, texture is hardened, and foamability is deteriorated, which is not preferable.

The ethylene / α-olefin copolymer has a density of 0.89 g / cm ³ or less, preferably 0.85 to 0.89 g / cm ³ , and particularly preferably 0.86 g / cm ^3. It is 0.88 g / cm ³ . Also,
As the density, the lower limit of any of the lower limit of the numerical range or the numerical value of the density adopted in any of the examples described below is a lower limit, and the upper limit of any of the numerical range or any of the examples described below. A numerical range in which the upper limit is the numerical value of the density adopted in (3) is also preferable. The density is 0.89 g
If it exceeds / cm ³ , the molded product may not have a sufficient tactile feel, the molded product may shrink, and when it is laminated on a backing paper, curling may occur, and the foamability is further deteriorated, which is not preferable. On the other hand, when the density is within the range of 0.89 g / cm ³ or less to the above preferable range, the above-mentioned defects are not present, and the roll processing can be performed at the decomposition temperature of the foaming agent or less, that is, in a wide temperature range of 120 to 150 ° C. It is preferable in terms.

The melt index (hereinafter sometimes abbreviated as "MI") of the ethylene / α-olefin copolymer is 0.5 to 10 g / 10 minutes,
It is preferably 1.0 to 7.0 g / 10 minutes, and particularly preferably 2.0 to 5.0 g / 10 minutes. Further, as the melt index, the lower limit of any of the numerical range or the numerical value of the melt index adopted in any of the examples described later is the lower limit, and the upper limit of any of the numerical ranges or the implementation described later. A numerical range in which the numerical value of the melt index adopted in any of the examples is the upper limit value is also preferable. The melt index is 0.5 g /
If it is less than 10 minutes, the roll processability is poor and, for example, the appearance of the sheet is poor. Therefore, it is necessary to process at high temperature, which makes it difficult to manufacture products such as foamed wallpaper, and the foamability is insufficient. If it exceeds 10 g / 10 minutes, the strength of the obtained product may be reduced, and roll processability, particularly tackiness and neck-in, may be increased. On the other hand, it is preferable that the melt index is within the above-mentioned preferred range since the above-mentioned drawbacks are not present and it is easy to control the balance between roll processability and foamability in a good state.

As the ethylene / α-olefin copolymer, the maximum melting peak temperature by DSC: Tm
(° C.) is preferably 60 to 100 ° C., and 60 to
It is more preferably 80 ° C. Further, as the maximum melting peak temperature by the DSC, the lower limit of any one of the numerical ranges or the numerical value of the maximum melting peak temperature by the DSC adopted in any of the examples described below is set as the lower limit, and any one of the above numerical ranges. A numerical range in which the upper limit value or the numerical value of the maximum melting peak temperature by DSC adopted in any of the examples described later is set as the upper limit value is also preferable. When the maximum melting peak temperature by DSC exceeds 100 ° C., it becomes difficult to carry out calendering while suppressing decomposition of the foaming agent. On the other hand, when the maximum melting peak temperature by DSC is within the above range, it is preferable in terms of energy saving because it does not have the above-mentioned defects and can be processed at a low temperature.

As the ethylene / α-olefin copolymer, those synthesized as appropriate or commercially available products may be used. The ethylene / α-olefin copolymer can be obtained by, for example, a solution polymerization method using a constrained geometry catalyst (CGC catalyst) which is a kind of single-site catalyst (SSC catalyst) centered on a metallocene compound. When using the geometrically constrained catalyst, compared with the case of using a conventional Ziegler catalyst or the like, the molecular chain structure is not disturbed even if the amount of comonomer is large, it is possible to uniformly introduce a large amount of comonomer, Further, since the molecular weight distribution can be set in a narrow range, as a result, a copolymer having a large dependency of the melt viscosity on the shear rate, a high melt tension, and an excellent moldability can be obtained. Preferable examples of the commercially available product include "Engage (registered trademark)" manufactured by DuPont Dow Elastomer Co., Ltd. and "Affinity (registered trademark)" manufactured by Dow Chemical Japan Co., Ltd.

Examples of the metal hydrate include magnesium hydroxide, aluminum hydroxide, alumina (hydrate), zinc borate, hydrotalcite, dawsonite, calcium aluminate, kaolin clay and the like. These may be used alone or in combination of two or more. In the present invention, a commercially available product can be used as the metal hydrate.

In the present invention, the above-mentioned metal hydrate which is surface-treated with a surface-treating agent known per se is preferable. Examples of the surface treatment agent include higher fatty acids, higher alcohols, paraffins, silane coupling agents and the like. Use of the surface-treated metal hydrate is advantageous in that the compatibility with the ethylene / α-olefin copolymer is improved and the dispersibility of the metal hydrate in the olefin resin composition is improved. is there.

In the olefin resin composition of the present invention, the metal hydrate functions as a flame retardant.

The content of the metal hydrate in the olefin resin composition of the present invention is as follows: ethylene.α-
100 parts by weight or more, preferably 100 to 150 parts by weight, based on 100 parts by weight of the olefin copolymer,
It is particularly preferably 110 to 130 parts by weight. Further, as the content, the lower limit of any of the lower limit of the numerical range or the content of the content adopted in any of the examples below, the lower limit, the upper limit of any of the numerical range or the implementation described below. A numerical range with the upper limit of the numerical value of the content adopted in any of the examples is also preferable. The content is 10
When it is less than 0 parts by weight, the flame retardancy is insufficient. On the other hand, in the case where the content is 100 parts by weight or more or in the preferable range, the above-mentioned defects are not present, the moldability is good, the surface condition of the molded product is good, and the foamability is also good. It is advantageous in that it does not decrease.

The other components in the present invention are not particularly limited and may be appropriately selected depending on the use of the olefin resin composition. For example, neutralizing agents, dispersants and oxidizing agents known per se may be used. Examples include various additives such as an inhibitor, a light resistance improver, a stabilizer, an antistatic agent, a pigment, a flame retardant, a foaming agent and a processability improver. Preferable examples of the pigment include titanium oxide and phthalocyanine pigments. Suitable examples of the flame retardant include a polyphosphoric acid carbamate compound, a silicone compound, and a metal oxide. Suitable examples of the processability improver include metal soaps and mineral oil-based softeners.

When the olefin resin composition of the present invention is used as a raw material for products such as wallpaper obtained by roll processing such as calendering, the olefin resin composition contains the above-mentioned other components. As, it is preferable to contain a foaming agent. Examples of the foaming agent include azo compounds such as azodicarboxylic acid amide (ADCA) and azobisisobutylnitrile (AIBN); sulfonyl hydrazide compounds such as P, P′-oxybisbenzenesulfonyl hydrazide (OBSH); Examples include chemical blowing agents such as nitroso compounds such as nitrosopentamethylenetetramine (DPT). These may be used alone or in combination of two or more. Among these, azodicarboxylic acid amide (ADCA) is preferable from the viewpoint of stability during processing.

The content of the other components in the olefin resin composition of the present invention may be such that it does not impair the effects of the present invention, and may be appropriately determined according to the application of the olefin resin composition. You can When the other component is the foaming agent, the content of the foaming agent in the olefin resin composition is 2 with respect to 100 parts by weight of the ethylene / α-olefin copolymer.
It is about 12 parts by weight.

The olefin resin composition of the present invention can be obtained, for example, by mixing the above components using a mixing device known per se. Examples of the mixing device include a Banbury mixer and an extruder.

The olefin resin composition of the present invention is suitable for roll processing such as calendar processing and is useful as a material for wallpaper.

(Wallpaper) The wallpaper of the present invention is formed by laminating a foam layer on paper and further laminating other layers, if necessary.

The above-mentioned paper preferably has flame retardancy. Examples of such flame-retardant paper include pulp paper such as chemical pulp such as kraft pulp or natural pulp such as cellulose pulp. And a flame-retardant paper mainly composed of self-extinguishing aluminum hydroxide and a filler in combination with clay, kaolin, talc, titanium dioxide, etc .; JP-B-51-17606 and JP-A-50-33696. Japanese Laid-Open Patent Publication No. 50-7397, Japanese Patent Publication No. 51-67
Examples include impregnated paper with a guanidine compound described in JP-A-63, etc .; aluminum hydroxide paper; glass fiber paper.

Among these, aluminum hydroxide paper is preferable from the viewpoint of flame retardant effect, especially reduction of calorific value and workability. The paper functions as a backing paper or substrate in wallpaper. The thickness of the paper is not particularly limited, but is usually 0.10 to 0.15 mm.

The foam layer is formed using the olefin resin composition of the present invention. The thickness of the foam layer is not particularly limited and may be appropriately selected depending on the application, purpose, etc. of the wallpaper, but is usually 0.10 to 0.30 m.
m. When embossing or the like is applied to the wallpaper, it is preferable that the foam layer has a relatively large thickness.

The other layers are not particularly limited as long as they do not impair the effects of the present invention, and can be appropriately selected depending on the application, purpose, etc. of the wallpaper. For example, the paper and the foam layer are bonded together. Examples of the adhesive layer include a surface layer formed on the surface of the wallpaper. Examples of the adhesive layer include a layer obtained by curing an adhesive known per se, a layer of an adhesive sheet or film such as an adhesive tape, and the like.
Examples of the surface layer include a colorant layer containing a pigment, a printing layer for patterns and patterns, a surface protective layer containing a light resistant compound, and the like. In the present invention, even if the colorant layer is not provided, the function of the colorant layer can be imparted to the foamed layer by including a pigment in the foamed layer. Further, it is possible to directly form a pattern / pattern on the surface of the foam layer without providing the printing layer.

The surface of the wallpaper of the present invention may be smooth or may have irregularities formed by embossing or the like depending on the application of the wallpaper. The wallpaper of the present invention is less likely to be damaged by gas generated during combustion in the incinerator or pollutes the environment, has a good sense of volume and surface flexibility, and has excellent flame retardancy and shrinkability, It can be applied to buildings. The wallpaper of the present invention is preferably produced by the method for producing the wallpaper of the present invention described below.

(Method for producing wallpaper) In the first method for producing wallpaper according to the present invention, the olefin resin composition is laminated on paper and foamed.

In the lamination, for example, the olefin resin composition may be directly laminated on the paper, or
The olefin resin composition may be formed into a sheet or film (after the surface of the sheet or the like is further subjected to corona treatment or the like, if necessary), and then the sheet or the like may be laminated on the paper.

In the former case, for example, the pellets of the olefin resin composition can be laminated on the paper by using a calender molding machine, an extrusion molding machine, a hot press molding machine or the like. In the latter case, first, the olefin resin composition is molded into a sheet or film using a calender molding machine, an extrusion molding machine, a hot press molding machine or the like. Thereafter, the sheet or the like may be heat-fused onto the paper by using a calender molding machine, an extrusion molding machine, a heat press molding machine, or the like, or the sheet or the like may be an adhesive or a molten polyethylene known in itself, or the like. , With adhesive such as adhesive tape,
You may stick on the said paper using a calender molding machine, an extrusion molding machine, a hot press molding machine, etc. Among these, lamination by calendering is preferable. In the case of calendering, the roll temperature is usually 120 to 15
It is 0 ° C.

The foaming can be performed, for example, as follows. That is, it can be carried out by heat-foaming, chemical-foaming, or physically-foaming the laminate obtained by laminating the sheet or film of the olefin resin composition on the paper obtained as described above. The heat-foaming is performed by molding a sheet or film of the olefin resin containing the chemical foaming agent, and then heat-foaming it. In this case, as the chemical foaming agent, a chemical foaming agent that does not cause a foaming reaction at the time of molding the olefin resin sheet or film is selected. The temperature of the heat-foaming is different depending on the type of the chemical foaming agent and cannot be unconditionally specified, but it may be a temperature at which the chemical foaming agent decomposes by heating to generate gas, and is generally Specifically, the temperature is 200 to 230 ° C.

The chemical foaming or physical foaming is carried out by incorporating the chemical foaming agent or a physical foaming agent known per se into the olefin resin composition and subjecting it to extrusion molding, hot press molding or the like. In this case, unlike the case of the heat foaming, molding and foaming are simultaneously performed. In this case, as the chemical foaming agent or physical foaming agent,
A chemical foaming agent or a physical foaming agent capable of causing a foaming reaction during the extrusion molding or the like is selected. In addition, these foams,
For example, it can be carried out using a foaming furnace known per se.

The expansion ratio in the expansion may be appropriately selected according to the application, purpose, etc. of the wallpaper and cannot be specified unconditionally, but is usually about 2 to 6 times.
The expansion ratio can be appropriately controlled by changing the type and amount of the foaming agent and the foaming conditions.

In the second method for producing wallpaper according to the present invention, the olefin resin composition is formed into a sheet or a film, foamed to form a foamed sheet, and then the foamed sheet is placed on paper. Stack. The molding can be performed using, for example, a calender molding machine, an extrusion molding machine, a hot press molding machine, or the like. The molding conditions are not particularly limited and can be appropriately determined according to the purpose. The foaming and laminating are as described above.

In the case of producing a wallpaper formed by laminating the other layers, for example, the material of the other layers may be directly laminated on the paper, or the other layers may be laminated. After forming the material into the sheet or film, the sheet or the like may be attached to the paper or the foam layer.

In the present invention, the surface of the laminate obtained as described above is subjected to a primer treatment, printing such as gravure printing, squeezing processing, etc., so that it has excellent designability and has a sharp uneven pattern. Can make wallpaper. According to the method for producing a wallpaper of the present invention, the wallpaper of the present invention can be easily and simply produced.

[0040]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples.

Examples 1 to 8 and Comparative Examples 1 to 3 The components shown in Table 1 were mixed in the proportions shown in Table 1, the mixture was kneaded at a roll temperature of 140 ° C. for 5 minutes, and then further chemically 8 as azodicarboxylic acid amide as a foaming agent
An olefin resin composition was obtained by adding parts by weight and kneading for 5 minutes, and then this olefin resin composition was calendered to obtain a sheet having a thickness of 0.15 mm.

This sheet was laminated on aluminum hydroxide paper or flame-retardant paper. The lamination is performed at 120 ° C. using an ethylene / vinyl acetate copolymer emulsion as an adhesive.
It was performed by heat-sealing. The laminate was placed in a gear oven and allowed to foam at 220 ° C for 45 seconds. As a result, as shown in FIG.
A 0.9 mm wallpaper was obtained. By further subjecting this wallpaper to primer treatment, gravure printing, and pressing, a wallpaper with excellent design, rich volume, and soft texture as shown in FIG. 2 was obtained.

These wallpapers were evaluated for roll processability, foamability, touch, shrinkage and flame retardancy. The results are shown in Table 1. <Evaluation> -Roll processability-After the composition shown in Table 1 was kneaded at 140 ° C for 10 minutes while keeping a constant roll interval using a 6-inch test roll,
A sheet having a thickness of 0.15 mm was produced. Ease of taking out the sheet from the test roll (adhesiveness) and appearance of the sheet surface (smoothness) were visually evaluated according to the following criteria. In addition, if it is Δ or more, there is no practical problem. (Adhesiveness) ◎ ・ ・ ・ No adhesion and easy to take out. ○: A little sticky, but easy to take out. Δ: It adheres slightly, but there is no problem in taking it out. X: Sticky and cannot be taken out. (Smoothness) ◎ ... Excellent in smoothness. ◯: Smoothness is good. Δ: The smoothness is slightly inferior, but there is no problem in appearance. X: Very bad and practically problematic.

-Foamability- A laminate obtained by heat-sealing the above-prepared sheet and aluminum hydroxide paper was foamed for 45 seconds in a gear oven at 220 ° C, and the cell state of the obtained sheet was visually observed. It was observed and evaluated according to the following criteria. In addition, if it is Δ or more, there is no practical problem. ◯: The cells are fine, uniform and good. B: The cell is in a slightly defective state, but there is no problem in practical use. X: Large cells and unevenness were observed, which is not preferable.

-Tactile Feel (Hardness) -The softness of the foamed laminate was evaluated (touch). The evaluation criteria are as follows, and if Δ or more, there is no practical problem. ◯: Flexible and good. Δ: The flexibility is slightly inferior, but there is no problem in practical use. X: Inferior in flexibility and hard, which is not preferable.

-Shrinkability (curl) -A sheet produced by a test roll and aluminum hydroxide paper or flame-retardant paper coated with an adhesive are heat-sealed to form a laminate, and the laminate is left at room temperature. Then, the degree of shrinkage (curl) was visually evaluated. The evaluation criteria are as follows, and there is no problem if Δ or more. ○: It doesn't curl. Δ: A little curled, but there is no problem in practical use. C: Large curl is not preferable.

-Flame retardance-The heat generation amount (Tdθ) and the smoke generation amount (CA) are measured according to JIS A.
1321 The measurement was performed according to the flame retardancy test method of the interior material of the building and the construction method. “Tdθ” means a temperature-time area (° C. minutes), and “CA” means a smoking coefficient.

[0048]

[Table 1]

In Table 1, the copolymer resin A is
Ethylene / octene copolymer, ENGAGE 8
100 (manufactured by DuPont Dow Elastomer Co., Ltd .; MI =
1.0 g / 10 minutes, density = 0.87 g / cm ³ , DSC
Peak temperature Tm = 63 ° C.). Copolymer resin B is an ethylene / octene copolymer, and ENG
AGE 8200 (Dupont Dow Elastomer Co., Ltd.)
Made; MI = 5.0 g / 10 minutes, density = 0.870 g / c
m ³ , DSC maximum peak temperature Tm = 68 ° C.). The copolymer resin C is an ethylene / octene copolymer, and has an ENGAGE 8440 (manufactured by DuPont Dow Elastomer Co., Ltd .; MI = 1.6 g / 10 minutes, density = 0.
895 g / cm ³ , maximum peak temperature Tm by DSC =
98 ° C). Copolymer resin D is an ethylene / butene copolymer, and Excellen VL-200 (manufactured by Sumitomo Chemical Co., Ltd .; MI = 2.0 g / 10 minutes, density = 0.9).
00 g / cm ³ , maximum peak temperature Tm by DSC = 1
14 ° C). Copolymer resin E is an ethylene / methyl methacrylate copolymer, and Acryft CM80
14 (Sumitomo Chemical Co., Ltd .; MI = 3.5 g / 10
Min, density = 0.94 g / cm ³ , maximum peak temperature Tm by DSC = 79 ° C.). Magnesium hydroxide is
Kisuma 5B (manufactured by Kyowa Chemical Industry Co., Ltd.). Aluminum hydroxide is Heidilite H-42S (manufactured by Showa Light Metal Co., Ltd.). Metal soap is manufactured by Kyodo Yakuhin;
Zinc stearate). Azodicarboxylic acid amide is (produced by Eiwa Chemical Industry Co., Ltd .; Vinylhol AC # 3). Titanium oxide (TiO ₂ ) is manufactured by Ishihara Sangyo Co., Ltd.
Manufactured by TAIPAKE CR-58). The titanium oxide (TiO ₂ ) pellet is a pellet obtained by mixing the TiO ₂ and low density polyethylene. Moreover, the numerical value in each column of the copolymer resins A to E, magnesium hydroxide, aluminum hydroxide, metal soap, azodicarboxylic acid amide and titanium oxide (TiO ₂ ) means parts by weight.

From the results of Table 1, the following is clear. That is, by appropriately blending copolymer resins having different MIs (copolymer resins) and copolymer resins having different densities and laminating aluminum hydroxide paper, roll processability, foamability (volume feeling), and tactile feeling are excellent, It was confirmed that the excellent effects of shrinkage and flame retardancy were achieved.

[0051]

According to the present invention, the above-mentioned conventional problems can be solved. That is, since the gas or the like generated during combustion does not damage the incinerator or pollute the environment, it is possible to provide a wallpaper that is environmentally friendly and safe and has an excellent volume and touch (surface flexibility). Further, it is possible to provide a method for producing a wallpaper, which enables easy and convenient production of the wallpaper.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional explanatory view of a wallpaper obtained by laminating a foam layer of the polyolefin resin of the present invention on aluminum hydroxide paper.

FIG. 2 is a schematic cross-sectional explanation of a wallpaper obtained by laminating a foam layer of the polyolefin resin of the present invention on aluminum hydroxide paper, and further subjecting the wallpaper to primer treatment, gravure printing and pressing. It is a figure.

[Explanation of symbols]

1 Aluminum hydroxide paper 2 Adhesive layer 3 foam layer 4 Primer layer 5 printing layers 6 embossing

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) C08L 23/00 B32B 27/32 103 D21H 27/20 B32B 27/10

Claims (8)

(57) [Claims] 1. A density of 0.89 g / cm ³ or less,
A foamed layer of an olefin resin composition containing an olefin resin containing an ethylene / α-olefin copolymer as a main component and having a melt index of 0.5 to 10 g / 10 minutes and a metal hydrate on paper. A wallpaper characterized by being laminated on. 2. The wallpaper according to claim 1, wherein the olefin resin composition contains 100 parts by weight of the ethylene / α-olefin copolymer and 100 parts by weight or more of the metal hydrate. 3. The weight ratio of the ethylene / α-olefin copolymer and the other olefin resin in the olefin resin composition (ethylene / α-olefin copolymer /
The wallpaper according to claim 1, wherein the other olefin resin) is 80/20 to 100/0. 4. The wallpaper according to any one of claims 1 to 3, wherein the paper is aluminum hydroxide paper. 5. A method for producing wallpaper, which comprises laminating the olefin resin composition according to any one of claims 1 to 3 on paper and foaming the same. 6. The olefin resin composition according to claim 1, which is formed into a sheet shape, which is then foamed to form a foamed sheet, and the foamed sheet is laminated on paper. A method of manufacturing wallpaper. 7. The method for producing wallpaper according to claim 5, wherein the stacking is a stacking by calendering. 8. The method for producing wallpaper according to claim 5, wherein the paper is aluminum hydroxide paper.