JPH02139484A - Functional wall paper - Google Patents

Abstract

PURPOSE:To obtain the subject wall paper, having both cutoff properties, deodorant and antifouling function by forming a resin layer, containing a deodorant and having antifouling resistance and cutoff properties for a plasticizer on one surface of a polyvinyl chloride resin layer containing the plasticizer. CONSTITUTION:Functional wall paper, obtained by forming a resin layer, containing a deodorant, e.g., iron(II) compound and an organic acid composition [e.g., a composition prepared by binding an iron(II) compound to L-ascorbic acid], and consisting of a resin having antifouling resistance and cutoff properties, e.g., saponified ethylene vinyl acetate copolymer with 20-60mol% ethylene content and >=90% saponified vinyl acetate component on one surface of a polyvinyl chloride resin layer of wall paper prepared by coating the above- mentioned resin containing a plasticizer (e.g., dibutyl phthalate) on a support, such as flame retardant paper or nonwoven fabric and having both deodorant and antifouling functions.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to functional wallpaper that has deodorizing and stain prevention functions.

BACKGROUND ART Conventionally, wallpaper or decorative boards made of polyvinyl chloride resin have been known. However, these wallpapers (including decorative boards) made of polyvinyl chloride resin (hereinafter referred to as vinyl chloride wallpaper) are easily contaminated by cigarette smoke, hand stains, graffiti, pigments in various foods, and the like. Also, the plasticizer for polyvinyl chloride resin bleeds onto the surface of the vinyl chloride wallpaper. Dust adheres to this bleed plasticizer, making the PVC wallpaper even more susceptible to staining. Also, it is not possible to remove ammonia, hydrogen sulfide, etc. that are generated in the living environment and cause unpleasant odors.

As shown in Japanese Patent Application Laid-Open No. 58-23973, stain-resistant wallpaper is known in which an acrylic resin film is laminated to PVC wallpaper. However, although these wallpapers have better stain resistance than non-laminated PVC wallpapers, they are far from perfect, and there is a problem that this tendency becomes more pronounced especially after a long period of time has passed after lamination. Furthermore, acrylic resin films have poor chemical resistance and are particularly susceptible to attack by esters, ketones, aromatic compounds, etc., so care must be taken when wiping off stains, which is not satisfactory.

As shown in Japanese Utility Model Application No. 59-172797, stain-resistant wallpaper is known in which a film of saponified ethylene-vinyl acetate copolymer (hereinafter referred to as EVOH) is laminated onto PVC wallpaper. This wallpaper has excellent chemical resistance and plasticizer barrier properties, and has better stain resistance than non-laminated PVC wallpaper. Furthermore, EVOH film is
It has a relatively low electrical resistance and is not easily charged with static electricity, so it has the advantage of being less likely to attract dust on the surface of the wallpaper. However, the above-mentioned Jitsukasho does not mention the deodorizing function.

JP-A-60-224542, JP-A-60-23923
No. 3, JP-A-60-242053 and JP-A-62-1
No. 5265 also states that EVOH has excellent blocking properties for plasticizers for polyvinyl chloride resins, and that stain resistance can be improved by using EVOH to block plasticizers for polyvinyl chloride resins. ing. However, in the above-mentioned Tokkai Sho,
As expected, there is no description of the deodorizing function.

On the other hand, JP-A-61. -28082, iron (I) is used as wallpaper agent.
I) Deodorizing wallpaper coated with or mixed with a composition formed by combining a compound and L-ascorbic acid is described, but there is no mention of stain resistance at all.
Since there is no stain-resistant layer on the surface of the wallpaper, it cannot be used as a wallpaper that has both deodorizing and stain-preventing functions. Moreover, the polyvinyl chloride resin allows odorous substances such as ammonia and hydrogen sulfide to pass through, thereby inhibiting contact between the odorous substances and the deodorant. Therefore, as shown in Example 2 of the same publication, it is necessary to make holes with a needle roll to increase the contact area, and a decrease in the strength of the wallpaper is unavoidable.

JP-A-62-6984 and JP-A-63-235518
There is a description in the issue of deodorizing fibers in which iron(II[)-phthalocyanine derivatives are supported on polyvinyl alcohol, but there is no description at all regarding wallpaper.

As mentioned above, there has been a strong demand for wallpaper that has both deodorizing and stain prevention functions, but this has not been possible with conventional technology.

Problems to be solved by C5 Ming The present invention aims to obtain a PVC wallpaper that has a deodorizing function, a blocking function for a plasticizer for polyvinyl chloride resin, a stain prevention function, and the like.

As a result of intensive research based on the awareness of the above problems, the inventor of the present invention has developed a deodorizing agent for polyvinyl chloride resin that has plasticizer blocking properties and stain resistance. The present inventors have discovered that by laminating, especially in the outermost layer, layers containing the following, it is possible to obtain wallpaper that has deodorizing and stain-preventing functions, etc., and has completed the present invention.

E., More details of light fL light Hereinafter, the present invention will be described in more detail. In the present invention,
Wallpaper containing a polyvinyl chloride resin layer containing a plasticizer is a layer of polyvinyl chloride resin, a plasticizer, and, if necessary, a pigment, on a support made of flame-retardant paper, nonwoven fabric, glass fiber, asbestos paper, etc. , fillers, stabilizers, etc. are laminated by a calendering method, a coating method, etc. Furthermore, printing may be applied on top of it. By incorporating a foaming agent into the final product, the polyvinyl chloride resin is often foamed 1.5 to 15 times more. In the present invention, the decorative board included in wallpaper is a general term for printed decorative board, decorative gypsum board, PVC decorative board, PVC steel plate, PVC noncombustible board, and the like. Printed decorative board is a product made by printing on tissue paper, etc. and laminating it on a support made of plywood, particle board, etc., and one of the layers uses polyvinyl chloride resin containing a plasticizer, etc. It is something that exists.

Also, in order to emphasize the three-dimensional effect, 1. Emboss processing may be applied. In addition, decorative gypsum board, PVC decorative board, PVC steel plate, PVC noncombustible board, etc. are printed on polyvinyl chloride resin sheets containing plasticizers, etc. It is laminated on a support made of plates or the like. As with printed decorative boards, embossing is sometimes applied to emphasize the three-dimensional effect.

In the present invention, the plasticizer for polyvinyl chloride resin is 2
It is liquid at 0°C and is contained in an amount of 20 to 75% by weight based on the total weight. Plasticizers that are liquid at 20°C include dibutyl phthalate, di-2-ethylhexyl phthalate, diisooctyl phthalate, diisodecyl phthalate, didecyl phthalate, dinonyl phthalate, butyl lauryl phthalate, dilauryl phthalate, and butyl phthalate. Examples include phthalate plasticizers such as benzyl, phosphate plasticizers such as tricresyl phosphate, tributyl phosphate, triphosphate, and 2-ethylhexyl, and chlorine-containing plasticizers such as chlorinated paraffin.

In the present invention, resins having plasticizer blocking properties and stain resistance for polyvinyl chloride resin include polyethylene terephthalate, polyvinyl alcohol (PVA), EV
Examples include OH, but EVOH is the best. Polyethylene terephthalate has a high melting point, poor embossability, high Young's modulus, and is difficult to work with during construction.
VA has some problems with water resistance. On the other hand, EV○H has excellent embossing properties, water resistance, and oil resistance. As EVOH, those having an ethylene content of 20 to 60 mol%, preferably 25 to 60 mol%, and a degree of saponification of the vinyl acetate component of 90 mol% or more, preferably 95 mol% or more are suitably used. If the ethylene content is less than 20 mol %, the water resistance will be poor, and if it exceeds 60 mol %, the oil resistance will be poor and oily contaminants will easily penetrate, resulting in poor stain resistance.

If the degree of saponification of the vinyl acetate component is less than 90 mol%, the oil resistance will be poor and oily contaminants will easily penetrate, which is also undesirable. Comonomer components other than ethylene and vinyl acetate can be used in this EVOH as long as they do not impede the object of the present invention. In addition, although this EVOH has excellent blocking properties for plasticizers used in polyvinyl chloride resin, it does not allow highly polar gases to pass through, such as ammonia and hydrogen sulfide, which are generated in the living environment and cause unpleasant odors. There is a selective transparency that makes it easy. Therefore, ammonia, hydrogen sulfide, etc. react efficiently with the deodorant contained in EVOH, and it is also necessary to increase the contact area by making holes with a needle roll, as shown in JP-A No. 61-28082. Nothing in particular.

Further, as a tochimori having stain resistance and plasticizer barrier properties, a composition comprising 95 to 50% by weight of the above EVOH and 5 to 50% by weight of carboxylic acid-modified polyethylene tochi resin can also be used. By using this composition, the surface gloss of at least one side of the composition layer can be made matte to 40% or less. The matte layer not only gives the PVC wallpaper a luxurious feel, but also allows deodorants that are difficult to incorporate into EVOH to be incorporated into carboxylic acid-modified polyethylene resin, expanding the range of deodorant options. becomes possible. The blending ratio of EVOH and carboxylic acid-modified polyethylene resin is 95 to 50% by weight of EVOH and 5 to 50% by weight of carboxylic polyethylene surface fat, preferably EVOH9
2-55% by weight, carboxylic acid-modified polyethylene 8-8% by weight
It is 45% by weight. If the content of the carboxylic acid-modified polyethylene resin is less than 5% by weight, the gloss level will not be satisfied, and if it exceeds 50% by weight, the plasticizer barrier property will be poor, the film forming property will be poor, and there will be defects such as holes in the film. Furthermore, the temperature of EVOH and carboxylic acid-modified polyethylene resin was 190℃ and the load was 216℃.
The melt index (hereinafter referred to as Ml) measured according to ASTM D 1238 under the condition of 0+r is
When IA and MIB are in the range of 3≦MIA/Ml:, ≦80, a good matte layer can be obtained.

Here, the carboxylic acid-modified polyethylene resin is a polyethylene resin obtained by graft-polymerizing α,β-unsaturated carboxylic acid or the carboxylic acid anhydride. Further, the content (grafting amount) of α, β-unsaturated carboxylic acid or the carboxylic acid anhydride is 0.0005 to 0.5 mol%, preferably 0.00
It is 1 to 0.4 mol%. If it is less than 0.0005 mol %, the dispersibility will be poor when blended with EVOH, resulting in poor film matting effect, and if it exceeds 0.5 mol %, the viscosity will increase significantly during the blending operation, resulting in poor film formability. α,
Examples of the β-unsaturated carboxylic acid or the carboxylic acid anhydride include acrylic acid, methacrylic acid, maleic acid, itaconic acid, maleic anhydride, and itaconic anhydride, with maleic anhydride being preferred. Examples of the polyethylene resin include high-density polyethylene, low-density polyethylene, and linear low-density polyethylene, with high-density polyethylene being preferred.

Next, in the present invention, it is important to incorporate a deodorizing agent into a resin having stain resistance and barrier properties against the plasticizer of polyvinyl chloride, such as the above-mentioned EVOH or a blend of EVOH. By containing a deodorant, especially the specific deodorant mentioned below, the plasticizer's barrier properties and stain resistance are not impaired.
Moreover, it can also impart a deodorizing effect, making it an extremely practical and excellent PVC wallpaper.

In the present invention, there is no particular restriction on the thickness of the resin layer containing the deodorant, but it is preferably 10 to 30μ, and if the thickness of this resin layer is less than 10μ, the resin containing the deodorant will be Pinholes are likely to occur in the layer, and the barrier properties of the plasticizer for polyvinyl chloride resin deteriorate. If it exceeds 30 μm, the laminated wallpaper will become hard and difficult to install, which is not preferable. As this resin layer, a film or the like obtained by a melt extrusion method such as a T-die method or an inflation method is used.

In the present invention, the deodorant is not particularly limited as long as it is stable at the film forming temperature. Examples include iron(II>compound-organic acid compositions, tree sap, silicates, activated carbon, iron(II[)-phthalocyanine derivatives, etc.).Activated carbon produces a black film, while iron(I)-phthalocyanine derivatives produce a black film. Since the film becomes dark green and its uses are limited, iron(II) compound-organic acid compositions,
Tree sap and silicates are preferred.

Any iron (I[) compound can be used as long as it dissolves in water to form divalent iron ions.

Examples include iron(I) inorganic salts such as ferrous sulfate, ferrous nitrate, ferrous chloride, ferrous bromide, ferrous iodide, ferrous gallate, ferrous malate, etc. Iron, iron (n) such as ferrous fumarate
) Organic salts may be mentioned, with ferrous sulfate and ferrous chloride being preferred.

The organic acid is not particularly limited as long as it is soluble in water, but examples include ascorbic acids such as ascorbic acid, isoascorbic acid, and metal salts thereof, citric acid,
Examples include carboxylic acids such as incitric acid, lactic acid, tartaric acid, and malic acid, with L-ascorbic acid being preferred.

In the present invention, the iron (II) compound-organic acid composition is
It is necessary that the two be combined. This can be prepared by drying and powdering an aqueous solution in which both components are mixed and dissolved by spray drying, freeze drying, or the like. The component ratio of the iron (II) compound and the organic acid is preferably in the range of 1:0.01 to 1.0 by weight, more preferably 1:0.02 to 0.80.
is within the range of When the organic acid component is ascorbic acid, the component ratio of the iron (n) compound and the organic acid is 1 by weight.
: preferably in the range of 0.02 to 0.30, more preferably 1:0.02 to 0.13, particularly preferably 1:0.0
It is in the range of 5 to 0.13. In the present invention, two or more types of iron (II) compounds or two or more types of organic acids may be used in combination.

Further, it is preferable to add alum to the iron (II) compound-organic acid composition in an amount of 2 to 20% by weight based on the total amount of the iron (II) compound and organic acid as a stabilizer for the deodorizing function. The alum is not particularly limited to @fI, but potassium alum, ammonia alum, and sodium alum are suitable.

In the present invention, the deodorant can be incorporated into the resin by blending it into the resin in advance using a twin-screw extruder, Brabender blastograph, etc., or by directly supplying it to various molding machines. There is a method of molding while kneading, but a preferred method is to prepare a high-concentration master pellet in an extruder, dilute it to about 1/10, and then melt-extrude it. Further, the content of the deodorant is 1 to 40% by weight, preferably 3 to 20% by weight, based on the amount of resin in the layer containing the deodorant. If the deodorizing agent is 1% by weight without grooves, the deodorizing function will not be sufficient, and if it exceeds 40% by weight, the strength of the film will be weakened and it will not be suitable for practical use. In addition to deodorants, antioxidants, ultraviolet absorbers, lubricants, various resins, etc. may be added to these resins as long as they do not impede the purpose of the present invention.

In the present invention, it is best that the layer having a deodorizing function, a plasticizer barrier property, and a stain prevention function be provided as the outermost layer. If the outermost layer has a layer that has plasticizer blocking properties and stain prevention functions, but does not have a deodorizing layer, it passes the test as stain prevention function PVC wallpaper, but the outermost layer is not wallpaper. The layer containing the deodorant cannot fully perform its function as a deodorant. On the other hand, if the outermost layer contains a deodorizing agent, but the outermost layer does not have a layer that blocks plasticizers and prevents stains, it passes the test as deodorizing PVC wallpaper, but the outermost layer does not contain a deodorizing layer. Since there is no stain prevention function, dirt on the wallpaper during use becomes a problem.

In the present invention, there is no particular limitation on the method of laminating the layer in which a deodorizing agent is kneaded into a resin having plasticizer blocking properties and stain prevention functions and the PVC wallpaper. As shown in Japanese Utility Model Application Publication No. 59-172797, a urethane adhesive may be laminated on PVC wallpaper, and a film mixed with a deodorant may be laminated thereon. JP-A-60-224542 and JP-A-60-239
As shown in No. 233 and JP-A No. 60-242053, only a urethane adhesive is laminated on an EVOH film mixed with a deodorant, or polyester or a copolymer of vinyl acetate and vinyl chloride is used. A mixture of a modified product and a urethane adhesive is laminated, or a urethane adhesive is first laminated, and then a modified product of polyester or a copolymer of vinyl acetate and vinyl chloride is laminated, You can also combine it with PVC wallpaper.

The functional wallpaper of the present invention thus obtained has no change in laminate strength even after long-term use, and maintains stain prevention and deodorizing functions, making it extremely useful as a functional wallpaper. .

The present invention will be explained in more detail with reference to Examples below.
The present invention is not limited in any way by this.

Example 1: 140 g of sulfuric acid starch heptahydrate and 0 L-ascorbic acid
．． Dissolve 9 g in 360 g of water, and further add 0.0 g of alum.
2g was dissolved. This solution was fed at a flow rate of 40 mρ/min, an atomizing air rate of 15 fJ/min, and a dry air rate of n 6 rr? / minute,
Spray drying was carried out under conditions of an input temperature of 120'C and an exit temperature of 75°C to obtain a powdered iron(II)-ascorbic acid composition.

Next, EVO has an ethylene content of 32 mol%, a saponification degree of vinyl acetate component of 99.5 mol%, and an MI of 1.3.710 min.
Using a twin-screw extruder, 100 parts by weight of H and 5 parts by weight of the above iron (It)-ascorbic acid composition were mixed into 2 parts by weight.
The mixture was made into a blend pellet at 209°C, and a 15 μm thick film was obtained at 220°C using a screw extruder. Using a gravure coater, coat this film with Atcoat AD-335, a urethane adhesive with a solid content concentration of 20% by weight.
A and hardening agent Cat-10 (manufactured by Toyo Morton Co., Ltd. Mixing ratio: 1
7:1) at a coating amount of 2 g/rr1' (based on solid content)
After drying at 70°C for 4 minutes, a gravure coater was used again to coat MPR, which is a modified copolymer of vinyl acetate and vinyl chloride, with a solid content concentration of 20% by weight.
-TM (manufactured by Nisshin Gaku Kogyo ■) application amount 2g/rr? <
It was coated so as to have a solid content (based on solid content) and dried at 110°C for 1 minute.

On the other hand, flame-retardant paper for lining is impregnated with 24 parts by weight of guanidine sulfamate flame retardant based on 100 parts by weight of paper, 100 parts by weight of polyvinyl chloride resin, 50 parts by weight of filler, plasticizer (phthalic acid di-2- ethylhexyl) 55 parts by weight, 20 parts by weight of pigment, 3 parts by weight of flame retardant, 2 parts by weight of stabilizer,
After laminating a mixture containing 2 parts by weight of a foaming agent and a foaming agent, the vinyl chloride was foamed to obtain a vinyl chloride wallpaper.

The adhesive side applied to the EVOH film and the polyvinyl chloride resin side laminated to the paper are combined and pressed together with a hot embossing roll at 130°C, and embossing is performed at the same time to achieve the desired deodorizing and stain prevention functions. Got wallpaper with.

After being left at room temperature for 2 days, the adhesive strength of the wallpaper was measured by T-peel, and it was found that the polyvinyl chloride layer was destroyed and had sufficient adhesive strength. After being left at room temperature for 50 days, the adhesive strength of the wallpaper was measured by T-peel, but the polyvinyl chloride layer was still destroyed and no decrease in adhesive strength due to the plasticizer was observed.

In order to investigate the barrier properties of plasticizers for polyvinyl chloride resin,
6 cm x 6 cm thick 7 on the EVOH side of the wallpaper
A 0μ unplasticized polyvinyl chloride film was brought into close contact with the unplasticized polyvinyl chloride film, and a load of 3 kg was applied to the unplasticized polyvinyl chloride film.
The unplasticized polyvinyl chloride film was left at 70°C for 7 days and the weight change was examined, but no increase in weight was observed, and no stickiness was observed on the EVOH surface, as shown in Table 1. The prevention of plasticizer migration leaching was complete.

The ambient temperature in the above test was so high that it is not normally experienced in daily life, and it is generally said that the permeation rate is about 50 times that of room temperature. The fact that it remains effective under these conditions means that it can withstand long-term use.

In order to check the stain prevention function, 20% of the EVOH surface of the wallpaper was
Apply oil-based red ink (Mitsubishi Pencil (manufactured by Mitsubishi Marker), lipstick (Benefit Ellipstick made by 11 Shiseido), and soy sauce (Kikkoman Dark Mouth made by Kikkoman (!1) to a size of X2am, and after 24 hours. I wiped it off with gauze soaked in benzene, but no marks remained.Also, even when I wiped it off with gauze moistened with neutral detergent, no marks remained in the case of lipstick and soy sauce, and the surface was not damaged by water. It can be confirmed that it has sufficient water resistance without any water resistance.Table 2
As shown in the figure, the stain prevention function was perfect.

To test the deodorizing function, a 2-mark × 2 country-sized piece of F paper moistened with 1% ammonia aqueous solution and the wallpaper with a size of 10 cm x I O-mark were placed in a 2-g polyethylene container. After 10 minutes, the strength of the odor inside the container was examined, and it was found that the odor had been eliminated to the point that it was only slightly perceptible, and as shown in Table 3, the odor elimination function was very excellent.

The atmospheric concentration (ammonia concentration) in the above test was so high that it is not normally experienced in daily life.
The fact that it remains effective under these conditions means that it can withstand long-term use.

Comparative Example 1 In Example 1, an acrylic copolymer containing 86 mol% of methyl methacrylate and 14 mol% of butyl methacrylate,
A sheet obtained by thermally laminating a 25μ thick film blended with an iron (II)-ascorbic acid composition and PVC wallpaper was used, and the same procedure as in Example 1 was used, except that holes were punched using a needle roll at the end. The barrier properties of plasticizers, stain prevention functions, and deodorizing functions were similarly tested. The results are shown in Tables 1, 2, and 3, but the results were not satisfactory in terms of items other than the deodorizing function.

Comparative Example 2 The procedure of Example 1 was repeated except that the EVOH and iron (II)-ascorbic acid composition were not blended into pellets.
The deodorizing function was similarly tested.

The results are shown in Tables 1, 2, and 3, and only the deodorizing function was unsatisfactory.

Example 2 In Example 1, first, a silicate (Daimushu-3000 manufactured by Dainichiseika Chemical Co., Ltd.) was used instead of the powdered iron (n)-ascorbic acid composition, and the modification rate of maleic acid was 0.0.
9 mol %, 20 wt % high density polyethylene resin with M I of 1 g/10 min was blended into pellets, and the high density polyethylene resin was 25 wt %, the ethylene content was 44 mol %, and the degree of saponification of the vinyl acetate component was 99. Example 1 was followed except that a matte film with a surface gloss of 20% on one side was used, with a composition consisting of 75% by weight of EVOH with an MI of 4°5 g/10 min, and a plasticizer. Similarly, test the barrier properties, stain prevention function, and deodorizing function of the product. The results are shown in Tables 1, 2, and 3, and excellent results were obtained in all items.

Example 3 In Example 2, tree sap (Super Clean WX-2041 manufactured by Kikkokonoe Co., Ltd.) was used instead of the silicate,
The procedure of Example 2 was followed except that blend pelletization and film formation were carried out at 190° C., and the plasticizer barrier properties, stain prevention function, and deodorizing function were similarly tested. The results are shown in Tables 1, 2, and 3, and excellent results were obtained in all items.

Comparative Example 3 In Example 3, the ethylene content was 32 mol%, the degree of saponification of the vinyl acetate component was 99.6 mol%, and the MI was 12 g.
/ Implemented except that a composition consisting of 45% by weight of EVOH for 10 minutes, 55% by weight of a hollow low-density polyethylene resin with a maleic acid modification rate of 0.01 mol% and an MI of 0.1 g/10 minutes was used. An attempt was made to obtain a film according to Example 3, but only a perforated film was obtained, so the test was discontinued.

Example 4 In Example 1, 100 parts by weight of polyvinyl chloride resin,
The procedure of Example 1 was repeated except that PVC wallpaper laminated with a mixture of 50 parts by weight of plasticizer, 60 parts by weight of filler, and 3 parts by weight of stabilizer was used. Odor function was similarly tested. The results are shown in Tables 1, 2, and 3, and excellent results were obtained in all items.

Table 1: Plasticizer blocking performance Table 3: Deodorizing function G1 Effect of the invention The functional wallpaper of the present invention has a polyvinyl chloride resin plasticizer blocking property, deodorizing function, and stain prevention function. Such abilities will not deteriorate over a long period of time.

Table 2 Dirt prevention function

Claims (6)

[Claims] (1) A functional wallpaper having a resin layer containing a deodorizing agent on at least one side of a polyvinyl chloride resin layer containing a plasticizer and having stain resistance and a barrier property against the plasticizer. (2) The resin having stain resistance and plasticizer barrier properties is a saponified ethylene-vinyl acetate copolymer with an ethylene content of 20 to 60 mol% and a saponification degree of the vinyl acetate component of 90 mol% or more. , the functional wallpaper according to claim 1. (3) The resin having stain resistance and plasticizer barrier properties is a saponified ethylene-vinyl acetate copolymer with an ethylene content of 20 to 60 mol% and a saponification degree of the vinyl acetate component of 90 mol% or more. -50% by weight of a deodorant-modified polyethylene resin and 5-50% by weight of a carboxylic acid-modified polyethylene resin, and the surface gloss of at least one side of the composition layer containing a deodorant is 40% or less. The functional wallpaper described in 1. (4) the deodorant is an iron (II) compound-organic acid composition;
Functional wallpaper according to any one of claims 1 to 3. (5) The functional wallpaper according to any one of claims 1 to 3, wherein the deodorant is tree sap. (6) The functional wallpaper according to any one of claims 1 to 3, wherein the deodorant is a silicate.