JP2021188141A - Wall paper and manufacturing method thereof - Google Patents

Abstract

To provide an environment-friendly wall paper having high stain resistance and scratch resistance, and a manufacturing method thereof.SOLUTION: A wall paper 10 is formed by sequentially stacking a paper substrate 11, a foam resin layer 12 containing at least resin component, foaming agent, and filler, a pattern layer 13 having printed picture pattern, and a surface film layer 14 of ethylene-vinyl alcohol copolymer. A non-vinyl chloride resin containing at least either one of ethylene-vinyl acetate copolymer and ethylene-unsaturated carboxylic acid copolymer is used for the foam resin layer 12. The basis weight of the foam resin layer 12 is set to 80 g/m2 or more and 100 g/m2 or less. Weighing amount of the paper substrate 11 may be set to 50 g/m2 or more and 70 g/m2 or less. Addition amount of the foaming agent may be set to 5 parts by weight or more and 20 parts by weight or less with respect to 100 parts by weight of resin component of the foam resin layer 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to an environment-friendly wallpaper having high stain resistance and scratch resistance, and a method for manufacturing the same.

Conventionally, there is known an antifouling wallpaper in which a film made of a crystalline polymer obtained by saponifying a random copolymer of ethylene and vinyl acetate is bonded onto a substrate and treated with a film (Patent Document 1-7). See pages 3-10 and Figure 4).

Further, conventionally, a wallpaper in which a foamed resin layer made of an olefin-based thermoplastic resin and a surface layer made of a pattern layer and a nylon resin are laminated in order on a base material layer, and an uneven pattern is applied from the surface layer side to the foamed resin layer. Is known (see paragraph [0013] of Patent Document 2 and FIG. 1).
Further, as the olefin-based thermoplastic resin forming the conventional foamed resin layer, an ethylene-vinyl acetate copolymer is exemplified (see paragraph [0015] of Patent Document 2).

Conventionally, a thin-film film layer made of an inorganic oxide and a gas barrier coating layer are sequentially laminated on a paper substrate, and the gas barrier coating layer is made of polyvinyl chloride or foamed polyvinyl chloride via an adhesive layer. Wallpapers that block volatile harmful substances that form surface materials are known (see paragraph [0018] of Patent Document 3 and FIG. 1).

Jikkai Sho 59-17277 No. Japanese Unexamined Patent Publication No. 2002-52665 Japanese Unexamined Patent Publication No. 2005-171446

Some of the above-mentioned conventional wallpapers have a nylon film layer or an ethylene / vinyl alcohol copolymer film layer on the surface of the foamed resin layer.
These can be cleaned with a water wipe or a neutral detergent, and because they have excellent scratch resistance, they are used in a wide range of living spaces such as entrance corridors, kitchen spaces, and washrooms that are easily soiled.
Further, in a general house, when a wallpaper made of a foamed resin layer is used, the gas permeability is high, so that an adhesive used as a base material such as a wood-based base material on a wall surface or a monomer released from the adhesive is used. There is a problem that volatile harmful substances such as residual solvents and chemical substances permeate into the living room side, but for wallpaper having a film layer of ethylene / vinyl alcohol copolymer, it is necessary to solve these problems with its high gas barrier property. Can be done.

However, at present, only vinyl chloride-based resins exist as wallpapers having an ethylene / vinyl alcohol copolymer film layer.
In recent years, the demand for non-PVC resin-based wallpaper has been increasing because PVC, which is the main material of PVC-based wallpaper, generates chlorine gas that is toxic to the environment and the human body when incinerated.
However, due to the low adhesion between the non-vinyl chloride resin and the ethylene / vinyl alcohol copolymer film layer, not only is it not possible to obtain sufficient adhesion strength, but there are also problems such as poor design of the embossed pattern. There is, and currently no such wallpaper exists on the market.
In addition, since hydrogen cyanide is generated during incomplete combustion in a wallpaper having a nylon film layer, not only carbon monoxide poisoning but also cyanide poisoning may occur in the event of a fire in a closed space such as a room, which may become serious. be.

Therefore, one aspect of the present invention is to provide an environment-friendly wallpaper having high stain resistance and scratch resistance and a method for manufacturing the wallpaper in order to solve the above problems.

The wallpaper according to one aspect of the present invention comprises a paper base material, a foamed resin layer containing at least a resin component, a foaming agent and a filler, a pattern layer having a printed pattern, and an ethylene-vinyl alcohol copolymer. It is a wallpaper in which a surface film layer and a surface film layer are sequentially laminated, and the foamed resin layer contains at least one resin of an ethylene-vinyl acetate copolymer and an ethylene-unsaturated carboxylic acid copolymer. It is characterized in that a non-polymeric resin is used and the basis weight of the foamed resin layer is set to ^{80 g / m 2} or more and 100 g / m ^{2 or less.}

Further, the wallpaper according to one aspect of the present invention is characterized in that ^{the weighing of the paper base material is set to 50 g / m 2} or more and 70 g / m ^{2 or less.}
The wallpaper according to one aspect of the present invention is characterized in that the amount of the foaming agent added is 5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the resin component of the foamed resin layer.

The method for producing a wallpaper according to one aspect of the present invention includes a paper base material, a foamed resin layer containing at least a resin component, a foaming agent and a filler, a pattern layer having a printed pattern, and ethylene / vinyl alcohol. The surface film layer of the polymer is sequentially laminated, and immediately after the heating and foaming of the foamed resin layer, the film is laminated on the surface of the pattern layer while applying a constant temperature and a predetermined pressure, and then cooled. This is characterized by forming the surface film layer.

The method for producing a wallpaper according to one aspect of the present invention is a non-vinyl chloride-based resin layer containing at least one resin of an ethylene-vinyl acetate copolymer and an ethylene-unsaturated carboxylic acid copolymer. A resin is used, and the basis weight of the foamed resin layer is set to ^{80 g / m 2} or more and 100 g / m ^{2 or less.}

According to one aspect of the present invention, it is possible to provide an environment-friendly wallpaper having high stain resistance and scratch resistance and a method for producing the wallpaper.

It is sectional drawing of the wallpaper which concerns on 1st Embodiment.

(Wallpaper 10)
In FIG. 1, 10 is a wallpaper 10, and the wallpaper 10 has a surface film layer 14 of an ethylene / vinyl alcohol copolymer on the surface of a non-vinyl chloride foamed resin layer 12. Wallpaper 10 can be cleaned with a water wipe or a neutral detergent, and has excellent scratch resistance, so it can be used in a wide range of living spaces such as entrance corridors, kitchen spaces, and washrooms that are easily soiled. be.

The layer structure of the wallpaper 10 is as follows, and is four layers.
The following (1) to (4) will be described later.
(1) Paper base material 11
(2) Foamed resin layer 12
(3) Picture layer 13
(4) Surface film layer 14
The layer structure of the wallpaper 10 is not limited to (1) to (4) described above, and an embossed pattern 15 forming an uneven pattern may be formed on the surface of the wallpaper 10. Further, although not shown, an anchor coat layer may be provided between the pattern layer 13 and the surface film layer 14.

(Paper base material 11)
The paper base material 11 can be used without particular limitation as long as it is a material usually used as a paper base material, such as a backing paper for wallpaper. For example, it is possible to use a pulp-based flame retardant paper impregnated with a water-soluble flame retardant, an inorganic paper mixed with an inorganic agent, or the like.
The weighing of the backing paper is set to 50 g / m ² or more and 70 g / m ² or less. This is to impart nonflammable performance while maintaining the strength of the wallpaper 10.

(Foam resin layer 12)
The foamed resin layer 12 is a non-vinyl chloride type and is laminated on the paper base material 11.
The foamed resin layer 12 contains a resin component, a filler, a foaming agent, a foaming aid, a resin component, and an additive. Then, the foaming agent foams to form the foamed resin layer 12.
The basis weight of the foamed resin layer 12 is set to ^{80 g / m 2} or more and 100 g / m ^{2 or less.} This is to maintain the design while imparting non-combustible performance.
As the resin component of the foamed resin layer 12, a non-vinyl chloride resin containing at least one resin of an ethylene-vinyl acetate copolymer and an ethylene-unsaturated carboxylic acid copolymer is used.

The content of the monomer other than ethylene contained in the ethylene copolymer is preferably, for example, in the range of 5% by mass or more and 25% by mass or less, and more preferably in the range of 9% by mass or more and 20% by mass or less. By adopting such a copolymerization ratio, it becomes possible to improve the extruded film-forming property.
As a specific example, the ethylene-vinyl acetate copolymer preferably has a copolymerization ratio (VA amount) of vinyl acetate in the range of 9% by mass or more and 25% by mass or less, and 9% by mass or more and 20% by mass or less. Is more preferable. The ethylene-methylmethacrylate copolymer preferably has a copolymerization ratio (MMA amount) of 5% by mass or more and 25% by mass or less, more preferably 5% by mass or more and 15% by mass or less. preferable.
The ethylene-methacrylic acid copolymer preferably has an acrylic acid copolymerization ratio (MAA amount) in the range of 2% by mass or more and 15% by mass or less, and more preferably in the range of 5% by mass or more and 11% by mass or less. preferable.

(filler)
As the filler, for example, an inorganic filler can be used.
The inorganic filler may be used alone or in combination of two or more. As the inorganic filler, for example, calcium carbonate, titanium dioxide, kaolin and the like can be used.
The content of the filler is preferably 60 parts by mass or more and 120 parts by mass or less with respect to 100 parts by mass of the resin component of the resin layer. By adding the filler in this range, the calories burned per unit area is reduced, and the nonflammability of the wallpaper 10 is further improved.

(Effervescent agent)
The foaming agent is a volatile swelling agent, and is formed into a shell composed of one of a polymer having two or more kinds of nitrile-based monomers as a constituent unit, or a polymer having two or more kinds of nitrile-based monomers and non-nitrile-based monomers as constituent units. It is preferable to enclose it and add it to the resin component of the resin layer in the form of heat-expandable microcapsules from the viewpoint of performance (foaming ratio, strength). As the foaming agent, an azo-based, hydrazide-based, nitroso-based, or the like can be used.
The foaming agent is preferably 1 part by mass or more and 20 parts by mass or less, preferably 5 parts by mass or more and 15 parts by mass or less with respect to 100 parts by mass of the resin. Even 1 part by weight can function as wallpaper, but it is preferable to add 5 parts by weight or more because embossing is not sufficiently formed due to insufficient thickness of the foamed resin layer and the design is inferior.

(Pigments, etc.)
The resin layer may be colored by adding a pigment or the like, if necessary. As the pigment, for example, an inorganic pigment such as iron oxide or carbon black, an organic pigment such as aniline black or phthalocyanine blue can be used.
The amount of the pigment added is preferably 5% by mass or more and 50% by mass or less, and more preferably 10% by mass or more and 30% by mass or less in the case of an inorganic pigment, based on the total amount of the resin layer. If it is an organic pigment, it is preferably 10% by mass or less, more preferably 5% by mass or less.

(Resin composition)
Well-known additives such as flame retardants, cell adjusters, stabilizers, lubricants and the like can be used in the resin composition, if necessary.
As the flame retardant, for example, a metal oxide flame retardant such as magnesium hydroxide or aluminum hydroxide, a phosphorus flame retardant such as a phosphoric acid ester, a brominated flame retardant such as tetrabromobisphenol A, or the like can be used. Is.

(Picture layer 13)
The pattern layer 13 is laminated on the foamed resin layer 12. The pattern layer 13 is formed to decorate the surface layer side with a pattern such as a wood grain pattern to improve the design of the foam wallpaper.
The pattern layer 13 is made of a coating film formed by printing on the surface of the resin layer 2.
The pattern layer 13 must meet the requirements for light resistance, color development, and safety of the components used (free of heavy metals and sulfur compounds as pigments and additives, etc.), which are generally required for the wallpaper 10. However, the ink is not particularly limited, but a water-based ink using an acrylic polymer as a base resin is particularly preferable.

(Anchor coat layer)
Although not shown, the anchor coat layer is provided between the pattern layer 13 and the surface film layer 14 to improve the adhesion between the foamed resin layer 12 and the surface film layer 14. For the anchor coat layer, for example, an ink regulator based on an acrylic polymer, an acrylic coating agent, or the like is used.

(Surface film layer 14)
The surface film layer 14 is an ethylene / vinyl alcohol copolymer and is laminated on the pattern layer 13. The surface film layer 14 has a high gas barrier property, which prevents harmful substances such as VOCs generated from a housing base material from entering the living room, does not adsorb the living odor of the living room, and is not only environmentally friendly but also human-friendly wallpaper. 10 can be obtained.

(Embossed pattern 15)
The embossed pattern 15 is formed on the surface of the wallpaper 10 and constitutes an uneven pattern.

(Production method)
The wallpaper 10 having the above structure is laminated in the order of the paper base material 11, the foamed resin layer 12, and the pattern layer 13. An anchor coat layer (not shown) may be provided on the surface of the pattern layer 13.
Immediately after heating and foaming the foamed resin layer 12, when the embossed pattern 15 is applied by pressing the embossed roll, the film is laminated on the surface of the pattern layer 13 or the anchor coat layer while applying a constant temperature and a predetermined pressure. ..
Then, by cooling, the surface film layer 14 and the embossed pattern 15 are formed on the surface of the pattern layer 13 or the anchor coat layer, and the wallpaper 10 is manufactured.
The pressure during embossing shall be in the range of 9800 N / m or more and 24500 N / m or less, and if possible, in the range of 14700 N / m or more and 19600 N / m or less.

(Action / effect of embodiment)
According to the wallpaper 10 according to the embodiment, by having the surface film layer 14 of the ethylene / vinyl alcohol copolymer on the surface of the non-vinyl chloride foam resin layer 12, it is possible to provide a wallpaper that does not generate toxic gas at the time of incineration. ,

Further, according to the wallpaper 10 according to the embodiment, not only is it resistant to stains and scratches, but it is also possible to prevent the adhesion of odorous components and the permeation of harmful substances generated from structural materials.
Further, according to the wallpaper 10 according to the embodiment, by setting the basis weight of the foamed resin layer 12 to 80 g / m ² or more and 100 g / m ² or less, it is possible to maintain the design while imparting nonflammable performance.

According to the wallpaper 10 according to the embodiment, by setting the weighing of the paper base material 11 to 50 g / m ² or more and 70 g / m ² or less, nonflammable performance can be imparted while maintaining the strength of the wallpaper 10.
According to the wallpaper 10 according to the embodiment, the amount of the foaming agent added is 5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the resin component of the foamed resin layer 12, so that preferable thickness and designability can be obtained. Can be granted.

According to the method for manufacturing wallpaper 10 according to the embodiment, it is possible to obtain wallpaper 10 in which the surface film layer 14 and the lower foamed resin layer 12 are in close contact with each other. Further, as compared with the manufacturing method in which the surface film layer 14 is extruded, it is possible to obtain the wallpaper 10 having a more uniform surface film layer 14.
Further, according to the method for producing the wallpaper 10 according to the embodiment, by using the ethylene / vinyl alcohol copolymer film for the surface film layer 14, it is not only resistant to stains and scratches, but also adheres to odorous components and has a structure. It is possible to obtain a wallpaper that prevents the penetration of harmful substances generated from the material.

Hereinafter, Examples 1 to 3 and Comparative Examples 1 to 6 of the wallpaper according to the first embodiment of the present invention will be described. The present invention is not limited to the following Examples 1 to 3.

(Example 1)
The layer structure and manufacturing method of Example 1 are as follows.
(1) Paper base material As the paper base material, a backing paper (fiber sheet) for wallpaper is used, and the basis weight thereof is 65 g / m ² .
(2) Foamed resin layer The foamed resin layer is a paste of 90 parts of filler (calcium carbonate) and 10 parts of capsule foaming agent with respect to 100 parts by mass of EVA resin base (hereinafter referred to as "part" for simplicity). Is coated by a coating method, and the basis weight thereof is 80 g / m ² .
(3) Picture layer The picture layer is formed by a gravure printing method using an acrylic resin-based ink, and its basis weight is 2 g / m ² .

(4) Anchor coat layer The anchor coat layer is formed by forming an acrylic resin-based coating agent on a pattern print and applying it by a gravure printing method so that ^{the basis weight after drying is 5 g / m 2.}
(5) Manufacturing method Immediately after heating and foaming, an ethylene / vinyl alcohol copolymer film (manufactured by Kuraray Co., Ltd .: HF-ME12) is laminated when an embossed pattern is applied by pressing the embossed roll, and then cooled to surface. Form a film layer.

(Examples 2 to 3 and Comparative Examples 1 to 2)
In Examples 2 and 3 and Comparative Examples 1 and 2, the basis weight of the foamed resin layer is changed. The same as in Example 1 except for the basis weight of the foamed resin layer.
(Example 2)
In Example 2, the basis weight of the foamed resin layer is 80 g / m ² in Example 1, whereas the basis weight is increased to ^{90 g / m 2.}
(Example 3)
In Example 3, the basis weight of the foamed resin layer is 80 g / m ² in Example 1, whereas the basis weight is increased to ^{100 g / m 2.}

(Comparative Example 1)
In Comparative Example 1, in Example 1, the basis weight of the foamed resin layer was 80 g / m ² , whereas the basis weight was reduced to ^{70 g / m 2.}
(Comparative Example 2)
In Comparative Example 2, the basis weight of the foamed resin layer is 100 g / m ² in Example 3, whereas the basis weight is increased to ^{110 g / m 2.}

(Comparative Example 3)
In Comparative Example 3, the surface film layer is changed to a PVDC coat ONY of 15 μm.
(Manufactured by Unitika Ltd .: "Emblem" (registered trademark) DCR15)
(Comparative Example 4)
In Comparative Example 4, the surface film layer is changed to 15 μm ONY (manufactured by Mitsubishi Chemical Corporation: Santonir SNR).

(Comparative Example 5)
In Comparative Example 5, the surface film layer is changed to an OPP of 20 μm.
(Toyobo Co., Ltd .: Piperen film SL P3162)
(Comparative Example 6)
In Comparative Example 6, the surface film layer is changed to 19 μm PET.
(Toyobo Co., Ltd .: Toyobo Ester Film E5101)

(Evaluation method, evaluation criteria)
There are six types of wall material evaluation methods, that is, physical property evaluation.
(1) Film adhesion (2) Designability (3) Gas barrier property (oxygen permeability)
(4) Scratch resistance (5) Environment (6) Non-combustible

(Film adhesion)
For the film adhesion, the adhesion strength of the surface film layer was measured with a Tensilon universal material tester.
The evaluation criteria for film adhesion were as follows, with three grades of "○", "△", and "×", with "○" being evaluated as passing, and the other "△" and "×" being evaluated as failing. ..
〇: Adhesion strength 0.5 kgf / 25 mm or more, or material breakage Δ: Adhesion strength 0.3 to 0.5 kgf / 25 mm or more ×: Adhesion strength 0.3 kgf / 25 mm or less

(Creativity)
As for the design, the height difference of the unevenness formed by embossing was observed with a microscope in the cross section of the wallpaper.
The evaluation criteria for design were as follows, with three grades of "○", "△", and "×", with "○" being evaluated as passing, and the other "△" and "×" being evaluated as failing.
◯: Emboss height difference is 30 to 60 μm
Δ: Emboss height difference is 20 to 30 μm
×: Measurement is not possible due to insufficient adhesion of the film

(Gas barrier property (oxygen permeability))
For gas barrier properties, oxygen permeability was measured at 25 ° C. and 50% RH.
The measured values of oxygen permeability are also shown in the lower part of Table 1.
The evaluation criteria for gas barrier properties were as follows, with three grades of "○", "×", and "-", with "○" being evaluated as passing, and the other "×" and "-" being evaluated as failing.
〇: 10cc / m ²・ day ・ atm or less ×: 10cc / m ²・ day ・ atm or more −: Test not possible due to insufficient adhesion

(Scratch resistance)
Scratch resistance was carried out by a surface strengthening test specified by the Wallpaper Industry Association.
The evaluation criteria for scratch resistance were as follows, with three grades of "○", "×", and "-", with "○" being evaluated as passing, and the other "×" and "-" being evaluated as failing.
◯: The foamed resin layer is not exposed ×: The foamed resin layer is slightly exposed −: The test cannot be performed due to insufficient adhesion.

(environment)
The environment was determined by whether or not the surface film layer contained "chlorine".
The evaluation criteria for the environment were as follows, with two levels of "○" and "×", with "○" being evaluated as passing and other "×" being evaluated as failing.
〇: Chlorine is not contained in the surface film layer ×: Chlorine is contained in the surface film layer

(Non Flammable)
For nonflammability, a calorie meter C3 (manufactured by Toyo Seiki Co., Ltd.) was used to heat the noncombustible material based on the heat generation test method (ISO 5660) specified by the Building Standards Act ( ^{heated at 50 kW / m 2} for 20 minutes). Was carried out.
The evaluation criteria for nonflammability were as follows, with two grades of "○" and "×", with "○" being evaluated as acceptable and the other "×" being evaluated as unacceptable.
◯: Burning calories are 7.2 MJ or less ×: Burning calories are over 7.2 MJ

(Evaluation results)
The evaluation results of the wallpaper are shown in Table 1 below.

(Examples 1 to 3 and Comparative Examples 1 to 6)
Of Examples 1 to 3 and Comparative Examples 1 to 6, all 6 types of evaluation methods were "passed" in 3 cases of Examples 1 to 3.

(Evaluation result of film adhesion)
Regarding the film adhesion, 4 cases of Comparative Examples 3 to 6 were rejected.
It can be presumed that this is because the surface film layer used was a type other than the surface film layer of the ethylene / vinyl alcohol copolymer (manufactured by Kuraray Co., Ltd .: HF-ME12) used in Example 1.

(Evaluation of design)
Regarding the evaluation of designability, 5 cases of Comparative Example 1 and Comparative Examples 3 to 6 were rejected.
It can be inferred that the cause of Comparative Example 1 is that the basis weight of the foamed resin layer was too small. Further, it can be inferred that the cause of Comparative Examples 3 to 6 is that the surface film layer is of a type other than that used in Example 1.

(Evaluation result of gas barrier property)
Regarding the evaluation of gas barrier properties, 4 cases of Comparative Examples 3 to 6 were unsuccessful.
It can be inferred that this is because the surface film layer used is of a type other than that used in Example 1.

(Evaluation result of scratch resistance)
Regarding the evaluation of scratch resistance, out of Comparative Examples 3 to 6, 3 cases excluding Comparative Example 4 were rejected.
It can be inferred that the cause of the three cases of Comparative Example 3, Comparative Example 5 and Comparative Example 6 was that the surface film layer used was of a type other than that used in Example 1.

(Environmental evaluation results)
Regarding the evaluation of the environment, only one case in Comparative Example 3 failed.
It can be inferred that the cause of one case of Comparative Example 3 is that the surface film layer is of a type other than that used in Example 1.

(Evaluation result of nonflammability)
Regarding nonflammability, 3 cases of Comparative Example 2, Comparative Example 5 and Comparative Example 6 were rejected.
It can be inferred that the cause of Comparative Example 2 is that the basis weight of the foamed resin layer was too large. Further, in the two cases of Comparative Example 5 and Comparative Example 6, it can be inferred that the cause was that the surface film layer used was of a type other than that used in Example 1.

(Comprehensive evaluation result)
Comparing Examples 1 to 3 with Comparative Examples 1 and 2, only the basis weight of the foamed resin layer is changed.
In Examples 1 to 3, all of the six evaluation methods are "passed".
On the other hand, in Comparative Example 1, the evaluation of the designability was rejected because the basis weight of the foamed resin layer was too small.

Further, in Comparative Example 2, the evaluation of nonflammability was rejected because the basis weight of the foamed resin layer was too large.
From this, it can be inferred from Examples 1 to 3 that the basis weight of the foamed resin layer ^{is appropriately 80 g / m 2} or more and 100 g / m ^{2 or less.}
Further, it can be inferred that the basis weight of the foamed resin layer affects the design and nonflammability.

On the other hand, when Examples 1 to 3 and Comparative Examples 3 to 6 are compared, the surface film layer is the surface film layer of the ethylene / vinyl alcohol copolymer used in Example 1 (manufactured by Kuraray Co., Ltd .: HF-). It can be inferred that ME12) is optimal.
Further, it can be inferred that the type of the surface film layer affects at least one of the six types of evaluation results.

10 Wallpaper 11 Paper base material 12 Foamed resin layer 13 Picture layer 14 Surface film layer 15 Embossed pattern

Claims (5)

Paper substrate and
A foamed resin layer containing at least a resin component, a foaming agent and a filler, and
A pattern layer with a printed pattern and a pattern layer
The surface film layer of the ethylene / vinyl alcohol copolymer and
Is a wallpaper in which
For the foamed resin layer, a non-vinyl chloride resin containing at least one resin of an ethylene-vinyl acetate copolymer and an ethylene-unsaturated carboxylic acid copolymer is used.
A wallpaper characterized in that the basis weight of the foamed resin layer ^{is set to 80 g / m 2} or more and 100 g / m ^{2 or less.} The wallpaper according to claim 1, wherein the weighing of the paper substrate ^{is set to 50 g / m 2} or more and 70 g / m ^{2 or less.} The wallpaper according to claim 1 or 2, wherein the amount of the foaming agent added is 5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the resin component of the foamed resin layer. Paper substrate and
A foamed resin layer containing at least a resin component, a foaming agent and a filler, and
A pattern layer with a printed pattern and a pattern layer
The surface film layer of the ethylene / vinyl alcohol copolymer and
Are stacked one after another,
Immediately after heating and foaming the foamed resin layer, a film is laminated on the surface of the pattern layer while applying a constant temperature and a predetermined pressure, and then cooled to form the surface film layer. How to make wallpaper. For the foamed resin layer, a non-vinyl chloride resin containing at least one resin of an ethylene-vinyl acetate copolymer and an ethylene-unsaturated carboxylic acid copolymer is used.
The method for manufacturing wallpaper according to claim 4, wherein the basis weight of the foamed resin layer ^{is set to 80 g / m 2} or more and 100 g / m ^{2 or less.}

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