JP2020023765A - wallpaper - Google Patents

Abstract

To provide a wallpaper having a low degree of yellowness, excellent in dirt prevention effect and scratch resistance.SOLUTION: A wallpaper 4 comprises a substrate 1, a resin layer 2 containing a polyvinylchloride resin laminated on the substrate, and a film layer 3 laminated on the upper side of the resin layer. An oxybis-benzenesulfonyl hydrazide-based foaming agent is added to the resin layer, and substantially no azodicarbonamide-based foaming agent is added thereto.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wallpaper used for applications such as building interior materials such as floors, walls, and ceilings, and a method for manufacturing the wallpaper.

  Wallpapers are relatively inexpensive, can be mass-produced, and have a variety of designs, and are widely used as interior decoration materials both in Japan and overseas.

  For wallpaper, polyvinyl chloride resin and olefin resin are often used. In particular, polyvinyl chloride resins are used exclusively because they are inexpensive and have excellent physical properties, and can be further embellished by embossing to form fine irregularities on the surface. However, there has been a problem that it is susceptible to damage due to food, tobacco, hand stains, graffiti, and the like, and to damage due to contact with pets or negligence.

  Therefore, conventionally, a method of laminating a film for the purpose of imparting antifouling property and scratch resistance to a wallpaper has been known. For example, a wallpaper using a saponified ethylene-vinyl acetate copolymer film is disclosed in Patent Document 1. ing. Also, a wallpaper using a polypropylene film is disclosed in, for example, Patent Document 2.

JP 2006-282834A JP-A-2006-096021

  Embossing for the purpose of imparting design to the wallpaper improves the three-dimensional appearance particularly when the thickness difference between the concave portion and the convex portion is increased, so that a foaming agent is often used for the resin layer and the like. Among them, azodicarbonamide-based blowing agents are widely used because they are inexpensive and generate a large amount of gas. However, although this foaming agent is yellow and decolorizes by thermal decomposition, the product becomes yellowish due to undecomposed residues. That is, there is a problem that the yellowness is increased and a pale color tone cannot be expressed.

  That is, an object of the present invention is to provide a wallpaper having excellent antifouling property and scratch resistance and low yellowness.

As a result of earnestly examining the above-mentioned problem, the means used by the present invention include a substrate and a resin layer containing a polyvinyl chloride resin laminated on the substrate, and a film layer laminated on the resin layer. And an oxybisbenzenesulfonylhydrazide-based blowing agent is added to the resin layer, and the wallpaper is substantially free of an azodicarbonamide-based blowing agent. The resin layer may contain a metal perchlorate, and it is preferable to add 0.01 to 4 parts by weight of the oxybisbenzenesulfonylhydrazide-based blowing agent to 100 parts by weight of the polyvinyl chloride-based resin. It is also preferable that titanium oxide is added to the resin layer in an amount of 1 to 50 parts by weight based on 100 parts by weight of the polyvinyl chloride resin. Preferably, the yellowness of the wallpaper is less than 3.0. It is preferable that the width of the base material and the width of the film layer are wider than the width of the resin layer, and the base material and the film layer are directly bonded at both ends. May be a resin layer is a basis weight of 100g / m ² ~220g / m ² wallpapers and wallpaper substrate is plain paper, wallpaper polyvinyl chloride resin is paste processing polyvinyl chloride resin can do. Further, regarding the width (R) of the resin layer and the width (F) of the film layer, the width of the wallpaper or the substrate (P) satisfying “the width of the film layer (F) −the width of the resin layer (R) ≦ 4 mm”. Is preferable, a wallpaper satisfying “substrate width (P) −film layer width (F)> 0 mm”.
The method further includes a step of laminating a resin layer containing a polyvinyl chloride resin on the upper side of the base material, and a film laminating step of laminating a film layer on the upper side of the resin layer, wherein the width of the film layer is equal to the width of the resin layer. More broadly, it is possible to use a method for producing wallpaper in which both ends of a substrate and a film layer are directly bonded in a film laminating step.

  INDUSTRIAL APPLICABILITY The present invention can provide a wallpaper having a low yellowness and excellent stain resistance and scratch resistance.

It is sectional drawing which concerns on one Embodiment of the wallpaper of this invention. It is a sectional view concerning one embodiment of wallpaper of the present invention.

  The essence of the present invention is to provide a base material and a resin layer containing a polyvinyl chloride resin laminated on the base material, and a film layer laminated on the resin layer, wherein the resin layer has an oxybisbenzenesulfonyl hydrazide type. A wallpaper to which a blowing agent is added and substantially no azodicarbonamide-based blowing agent is added. Here, the fact that the azodicarbonamide-based blowing agent is not substantially added means that the azodicarbonamide-based blowing agent is not added to the extent that the foaming property of the oxybisbenzenesulfonylhydrazide-based blowing agent is affected. This makes it possible to obtain a wallpaper having a low yellowness.

"Resin layer"
As the oxybisbenzenesulfonylhydrazide-based blowing agent used for the resin layer, p, p'-oxybisbenzenesulfonylhydrazide is preferable. Additives may be used within a range that does not affect the foamability.

  Here, it is preferable to use only the oxybisbenzenesulfonylhydrazide-based blowing agent. Use of an azodicarbonamide-based blowing agent is not preferable because yellowing increases. The azodicarbonamide-based foaming agent is a foaming agent composed of azodicarbonamide, and includes a simple substance or a substance containing an additive for improving physical properties. In the present invention, an azodicarbonamide-based blowing agent is not added in an effective amount as a blowing agent. That is, a wallpaper with low yellowness can be obtained by using an oxybisbenzenesulfonylhydrazide-based blowing agent without substantially adding an azodicarbonamide-based blowing agent.

  As the polyvinyl chloride resin used for the resin layer, vinyl chloride may be a main component, but may contain a copolymer component other than vinyl chloride. Specifically, polyvinyl chloride, ethylene-vinyl chloride copolymer, propylene-vinyl chloride copolymer, vinyl chloride-acrylic resin copolymer, vinyl chloride-urethane copolymer, vinyl chloride-vinylidene chloride copolymer And vinyl chloride-vinyl acetate copolymer. As the vinyl chloride resin, a polyvinyl chloride resin for paste processing or a suspension polyvinyl chloride resin can be used. Further, these polyvinyl chloride resins may be used alone or in combination of two or more. In particular, when a polyvinyl chloride resin for paste processing is used, paste coating becomes possible, and various foamed products can be produced by incorporation of a large amount of various compounding agents with inexpensive equipment. Although it is easier to achieve a calendering process using a suspension polyvinyl chloride resin if only mentioning the scratch resistance, it is possible to use a polyvinyl chloride resin for paste processing which is detrimental to the scratch resistance in the present invention. By firmly adhering the resin layer and the film layer, it has been found that a wallpaper having excellent scratch resistance and excellent adhesion between the resin layer and the film layer can be provided.

  The polyvinyl chloride resin for paste processing is a fine polymer particle having an average primary particle size of, for example, 0.02 to 20.0 μm, which is mainly obtained by an emulsion polymerization method or a microsuspension polymerization method. It is a general feature that a paste is formed by adding a plasticizer. The suspension polyvinyl chloride resin is a porous, irregularly shaped vinyl chloride resin having an average primary particle size of, for example, 50 to 200 μm and mainly obtained by a suspension polymerization method. This porous shape allows liquids such as plasticizers to be absorbed, so that it does not become a paste, and is mainly used in extrusion and calendering.

  By using metal perchlorate for the resin layer, a foamed wallpaper having a lower yellowness can be obtained. It is presumed that the metal perchlorate acts as a stabilizer for the polyvinyl chloride resin in the foamed polyvinyl chloride resin layer and suppresses yellowing caused by the oxybisbenzenesulfonylhydrazide foaming agent. . The oxybisbenzenesulfonyl hydrazide foaming agent itself is white, but it is colored by high temperatures, and the decomposition residue is acidic and generates a large amount of heat upon decomposition, which may contribute to the discoloration of the polyvinyl chloride resin. is there. It is considered that the metal perchlorate suppresses yellowing caused by the oxybisbenzenesulfonylhydrazide-based blowing agent.

  Further, by using a stabilizer other than the metal perchlorate in the foamed polyvinyl chloride resin layer, the yellowness can be further reduced. Examples of the stabilizer include a barium-based stabilizer, a calcium-based stabilizer, a tin-based stabilizer, a zinc-based stabilizer, and a potassium-based stabilizer, and two or more of these may be used in combination. In particular, it is preferable to use a barium-based stabilizer, a calcium-based stabilizer, or a potassium-based stabilizer together with a zinc-based stabilizer, since sufficient workability can be obtained while reducing the yellowness.

  Examples of the metal perchlorate include lithium perchlorate, sodium perchlorate, potassium perchlorate, strontium perchlorate, magnesium perchlorate, calcium perchlorate, barium perchlorate, and ammonium perchlorate. Can be Among them, sodium perchlorate and potassium perchlorate are preferably used. These perchlorates may be anhydrous or hydrated salts, and may be those dissolved in alcohol-based or ester-based solvents such as butyl diglycol and butyl diglycol adipate, and their dehydrated products. Further, perchloric acid-containing hydrotalcite obtained by treating hydrotalcite with perchloric acid may be used.

The oxybisbenzenesulfonylhydrazide foaming agent used in the resin layer is preferably contained in an amount of 0.01 to 4 parts by weight based on 100 parts by weight of the polyvinyl chloride resin. If the amount is less than 0.01 part by weight, the foaming property may not be sufficient, and if it is more than 4 parts by weight, the foaming ratio may be high and sufficient scratch resistance may not be obtained. When metal perchlorate is used as a stabilizer, yellowing can be suppressed, and even if the amount of the foaming agent added is increased, low yellowness is easily maintained, which is preferable.
It is preferable not to add an azodicarbonamide-based blowing agent, but if less than 0.1 part by weight, the effect on yellowing is relatively small, and if less than 0.01 part by weight, the effect on yellowing is less. It is preferable.

  It is preferable that the resin layer contains titanium oxide in an amount of 1 to 50 parts by weight based on 100 parts by weight of the polyvinyl chloride resin because the concealing property and the weather resistance are improved. If the amount is less than 1 part by weight, the effect of improving hiding properties or weather resistance is difficult to be obtained, and if it exceeds 50 parts by weight, workability may decrease and yellowness may increase.

The basis weight of the resin layer used in the present invention is preferable from the viewpoint of hiding and fire resistance is ^{100g / m 2 ~220g / m 2} . If it is less than 100 g / m ² , concealing properties may be lacking. If it exceeds 220 g / m ² , the fire protection may decrease. Further, the scratch resistance is improved by limiting the basis weight of the resin layer, and is preferably 220 g / m ² or less, more preferably 160 g / m ² or less.
Therefore, from the viewpoint of hiding and scratch resistance also is preferably ^{100g / m 2 ~220g / m 2} , 120g / m 2 ~160g / m 2 is more preferable.

  In the resin layer, stabilizers, plasticizers, fillers, foaming agents, coloring agents, processing aids, antibacterial agents, fungicides, flame retardants, flame retardants, defoaming, as long as they do not hinder problem solving Various additives such as an agent may be appropriately added.

  Although it does not specifically limit as a plasticizer, For example, di 2-ethylhexyl phthalate, dioctyl terephthalate, diisononyl phthalate, dibutyl phthalate, dihexyl phthalate, diisodecyl phthalate, butyl benzyl phthalate, trioctyl phthalate, dioctyl adipate, chlorinated fatty acid ester, chlorinated paraffin Epoxidized soybean oil, epoxidized fatty acid esters, polyesters, and the like.

"Base material"
Examples of the base material used in the present invention include plain paper (pulp-based and treated with a known sizing agent), flame-retardant paper (pulp-based and treated with a flame retardant such as guanidine sulfamate and guanidine phosphate), and inorganic materials. Paper (containing inorganic additives such as magnesium hydroxide and aluminum hydroxide) and fleece paper (made by mixing pulp and synthetic fibers such as polyester) are used. In particular, it is preferable to use plain paper because scratch resistance and workability are improved.

No particular limitation is imposed on the basis weight of the substrate, preferably from workability and concealing property is ^{50g / m 2 ~170g / m 2} . If it is less than 50 g / m ² , the coverability may be lacking or the workability may be reduced. If it exceeds 170 g / m ² , the fire protection may decrease.

"Film layer"
The resin used for the film layer of the present invention is not particularly limited, but polyolefins such as polyethylene and polypropylene, polybutylene, ethylene-vinyl alcohol copolymer, methacrylic, thermoplastic polyester, polyvinyl alcohol, polyethylene Examples include terephthalate, polylactic acid, polyvinyl chloride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, polycarbonate, and silicone. In particular, polyolefin-based and ethylene-vinyl alcohol-based copolymer resins are preferred from the viewpoints of stain resistance, scratch resistance, curl resistance, and economy.

  The thickness of the film layer is not particularly limited, but is preferably from 10 μm to 25 μm. If it is less than 10 μm, the scratch resistance may be lacking. If it exceeds 25 μm, workability and fire protection may decrease.

In the present invention, it is preferable to make the width of the film layer larger than that of the resin layer. This will be described with reference to FIGS. 1 and 2 which are cross-sectional views in the width direction of the wallpaper. The wallpaper 4 has a resin layer 2 and a film layer 3 laminated on a substrate 1. The film layer 3 is wider than the resin layer 2, and the film layer 3 is narrower than the substrate 1. The film layer 3 is adhered to the substrate 1 at the ends 5-1 and 5-2 of the wallpaper 4. That is, the film layer 3 and the substrate 1 are bonded at both ends 5.
As a result, the film layer 3 is laminated to the end of the resin layer 2, and the film layer 3 is sufficiently joined to the resin layer 2 even at the end of the resin layer 2. Therefore, the film layer 3 is not easily peeled off from the resin layer 2 at the ends 5-1 and 5-2 of the wallpaper, which is preferable.
Furthermore, by making the film layer 3 and the base material 1 adhere at both ends 5 of the wallpaper 4, the film layer 3 and the resin layer 2 are strongly adhered over the entire width of the wallpaper 4. Thereby, the adhesiveness between the resin layer as the wallpaper 4 and the film layer laminated thereon is excellent. In addition, since the adhesiveness between the resin layer and the film layer is excellent, the film layer is hardly peeled off, and the wallpaper 4 having excellent scratch resistance is obtained, which is preferable.

  It is preferable that the difference in width between the resin layer 2 and the film layer 3 is not too large. If this difference is not made too large, it is economically preferable that the portion to be eliminated during construction can be reduced. Specifically, the difference between the width (R) of the resin layer 2 and the width (F) of the film layer 3 is set to 4 mm or less (“width of film layer (F)” − “width of resin layer (R)”). ≦ “4 mm”).

  Further, it is preferable that the width (P) of the substrate is larger than the film layer (F). As a result, the film layer enters the inside of the base material, and the problem that the film layer is caught and the film layer is peeled can be reduced.

  Further, an adhesive layer may be provided between the film layer and the resin layer in order to increase the adhesion between the two layers. Means for providing the adhesive layer is not particularly limited, and a known method can be used.For example, as a method for obtaining by coating with a solvent coating method or the like, methyl ethyl ketone, methyl isobutyl ketone, adhesion dissolved in an organic solvent such as ethyl acetate, etc. Examples thereof include a method of applying the agent to the film layer or the resin layer by a gravure printing machine or a dry laminating machine.

  In the foamed wallpaper of the present invention, the yellowness defined by “JIS K 7373” is more preferably less than 3.0, further preferably less than 2.5.

The wallpaper of the present invention may be provided with a printed layer on the resin layer as long as it does not hinder the solution of the problem. A known method can be used as a method for providing the printing layer, and examples thereof include gravure printing, flexographic printing, offset printing, and silk screen printing. Further, various surface treatment agents may be used in combination for the purpose of improving the coating property of the print layer and reducing the gloss. Known pigments and binder resins can be used.
When the printing layer is provided between the resin layer and the film layer, the film layer needs to be sufficiently bonded to the resin layer and the printing layer. When a printing layer is provided, printing is often performed on a pattern rather than printing on the front surface so as to completely cover the resin layer. In this case, the film layer is sufficiently bonded to both the resin layer and the printing layer Is more preferable. Also, even when printing on the front surface so as to cover the resin layer, for example, in gravure printing, printing is performed along the mesh shape of the gravure printing roll, so that the printing layer is completely covered with the surface of the resin layer. It is rarely provided, and in such a case, it is a more preferable embodiment that the film layer is sufficiently bonded to the resin layer and the printing layer. Further, an adhesive layer may be provided between the film layer and the resin layer or the printing layer in order to improve the adhesion between the film layer and the resin layer or the printing layer.

  The wallpaper of the present invention may be provided with a function-imparting treatment layer on the resin layer as long as it does not hinder the solution of the problem. The function added by the functionality-imparting layer is not particularly limited, but includes, for example, deodorant properties, antistatic properties, anionic properties, and relaxing effects, and two or more of them may be used in combination. When a printing layer is provided in addition to the functional layer, it is preferable to provide the functional layer on the printing layer.

As a method for producing the wallpaper of the present invention, a known method can be used, and a step of laminating a resin layer containing a polyvinyl chloride resin on the upper side of the base material and laminating a film layer on the upper side of the resin layer What is necessary is just to have a film lamination process. For example, after laminating a resin layer on a base material by a paste coating method or a calendar method, foaming the resin layer with a heater embossing machine or a foaming embossing machine, obtaining a mechanical emboss, and further laminating a film layer. . Especially when applying mechanical embossing, it is preferable to use a heater embossing machine because it is easy to suppress the increase in yellowness.Here, the foaming step of foaming the resin layer, the mechanical embossing step of performing mechanical embossing, and the film laminating step of laminating the film, May be performed continuously, may be performed in two or three steps, and may be performed sequentially, or a plurality of steps may be performed simultaneously. When it is not necessary to perform foaming, the foaming step may not be used.
Use of paste coating when laminating the resin layer on the base material is desirable because it can be applied to a large amount of various compounding agents. When a printing layer is provided on the resin layer, gravure printing, flexographic printing, offset printing, silk screen printing, or the like can be used.

  Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

"Yellowness evaluation"
The yellowness of the obtained foamed wallpaper was measured using an SM color computer manufactured by Suga Test Instruments Co., Ltd. in accordance with "JIS K 7373".

"Stain prevention"
The test was conducted in accordance with the standard of the Wallpaper Industry Association, "Stain prevention wallpaper performance rule". Contaminants were coffee, soy sauce, aqueous pen (black), and crayon (red). For the coffee and soy sauce, a test specimen (A4 size) was stuck on a test table inclined at 45 degrees, and 100 mL of contaminants were sprinkled thereon so that the contaminated state became about 10 cm wide. For the aqueous pen, five straight lines of 10 cm in length were drawn in parallel on the test piece (30 mm × 220 mm) at intervals of about 2 mm. The crayon was attached to a friction tester II type friction element specified by JIS L0849, and rubbed 5 times at a reciprocating speed of 30 times per minute at a load of 200 g between 120 mm on a test piece (30 mm × 220 mm). After allowing to stand at room temperature for 24 hours, it was wiped off with a cloth moistened with water. The aqueous pen and crayon were removed by wiping with a cloth soaked in water and then using a cloth soaked with a neutral detergent. Regarding the removal of each contaminant, using a gray scale for contamination according to JIS L 0805, it was determined that the contamination was good when the stain was about 4 to 5 pieces, and was not possible when the stain was about 1 to 3 pieces.

"Scratch resistance"
According to the standard specified by the Wallpaper Industry Association, "Surface Enhanced Wallpaper Performance Rules", but using a friction tester type II specified by JIS L 0849 equipped with a friction element with a load of 400 gf on the surface of a 30 mm x 250 mm specimen, every minute Scratching at a reciprocating speed of 30 times, it is good if the number of scratches until the resin layer is broken and the substrate is clearly visible is 100 times or more, and at a reciprocating speed of 30 times per minute using a friction element with a load of 200 gf. It was judged as acceptable if no relatively large tearing of the surface layer was observed after scratching five times, and was not accepted if the tearing of the surface layer was clearly visible.

"Adhesiveness"
A test body is A4 size, water is applied to the back surface of the base material with a brush, and the back surfaces are combined and cured for 5 minutes, and then folded so as to be half of the longitudinal direction and the back surface is inside or outside. Then, a load of 1.74 kg was evenly applied to the glass plate and allowed to stand at room temperature for 1 hour. Thereafter, the surface condition of the folded portion is visually observed for both the inside of the back surface and the outside of the back surface, and if there is no peeling and wrinkling of the film layer in both the inside of the back surface and the outside of the back surface, both are good. There was no peeling, but any wrinkles were acceptable, and any peeling was not possible.

  In Example 1, plain paper was used as a base material, and polyvinyl chloride resin for paste processing, p, p'-oxybisbenzenesulfonyl hydrazide, di-2-ethylhexyl phthalate, and barium-zinc were used in predetermined amounts as shown in Table 1. A resin layer was provided on the substrate by applying a paste sol obtained by mixing a stabilizer, a sodium perchlorate-based stabilizer, calcium carbonate, and titanium dioxide with a paste coater. Then, using a heater embossing machine, a film layer composed of an ethylene-vinyl alcohol copolymer was laminated and subjected to mechanical embossing. The width of the substrate and the width of the film layer were made larger than the width of the resin layer, and the substrate and the film layer were bonded at both ends.

  Example 2 was based on Example 1 except that the sodium perchlorate-based stabilizer was not used.

  Example 3 was the same as Example 1 except that the amount of p, p ， -oxybisbenzenesulfonylhydrazide was changed.

  Example 4 was the same as Example 1 except that the blending amount and basis weight of titanium dioxide were changed.

  Example 5 was based on Example 1 except that the adhesion between the base material and the film layer at the edge was prevented.

  Example 6 was based on Example 1 except that the base material was changed to inorganic paper (aluminum hydroxide paper).

  Example 7 was based on Example 1 except that a film layer made of a polypropylene resin was laminated, and the width difference between the film layer and the resin layer and the width difference between the base material and the resin layer were changed.

  Example 8 was based on Example 1 except that the basis weight of the resin layer was changed and the print layer was applied by gravure printing.

  In Comparative Example 1, the foaming agent was changed from p, p'-oxybisbenzenesulfonylhydrazide to azodicarbonamide, the width of the film layer was made larger than the width of the substrate, and the adhesion at the edge of the substrate and the film layer was prevented. Other than that, it conformed to Example 1.

  In Comparative Example 2, p, p'-oxybisbenzenesulfonylhydrazide and azodicarbonamide were used in combination as foaming agents, and the width of the film layer was made smaller than the width of the resin layer to prevent adhesion at the edges of the substrate and the film layer. Other than that, it conformed to Example 1.

In Tables 1 and 2, “２” in the column of “Film layer”, “Substrate”, and “Printed layer” indicates that the corresponding layer is provided, and “−” indicates that the corresponding layer is provided. Indicates that they have not. Further, in the column of “Adhesion of substrate and film layer”, “O” indicates that the substrate and the film layer are adhered, and “X” indicates that the substrate and the film layer are not adhered. Show. For example, Example 1 has a film layer of an ethylene-vinyl alcohol copolymer and a substrate that is plain paper, has no printing layer, and indicates that the substrate and the film layer are adhered. ing.
The “FR” column indicates a value of (film layer width (F) −resin layer width (R)), that is, a difference between the film layer width (F) and the resin layer width (R). . Similarly, the “PF” column of “width difference” is a value of the width of the substrate (P) −the width of the film layer (F), that is, the value of the width of the substrate (P) and the width of the film layer (F) Represents the difference.

"Evaluation results"
Examples 1 to 8 show that the yellowness is reduced to less than 3.0, and that the stain resistance, the scratch resistance and the adhesion are excellent. In particular, Examples 1, 2 and 4 are all excellent, and are desirable embodiments of the present invention.

  On the other hand, Comparative Examples 1 and 2 contained azodicarbonamide and had a high yellowness of 4.0 or more, and had particularly poor adhesion since there was no adhesion between the substrate and the film layer.

Claims (12)

  A substrate and a resin layer containing a polyvinyl chloride resin laminated on the substrate and a film layer laminated on the resin layer, the oxybisbenzenesulfonyl hydrazide foaming agent in the resin layer A wallpaper which is added and substantially does not contain an azodicarbonamide-based blowing agent.   The wallpaper according to claim 1, wherein the resin layer contains a metal salt of perchlorate.   The wallpaper according to claim 1 or 2, wherein the oxybisbenzenesulfonylhydrazide-based blowing agent is added in an amount of 0.01 to 4 parts by weight based on 100 parts by weight of the polyvinyl chloride resin-based resin. .   The wallpaper according to any one of claims 1 to 3, wherein 1 to 50 parts by weight of titanium oxide is added to the resin layer based on 100 parts by weight of the polyvinyl chloride resin.   The wallpaper according to any one of claims 1 to 4, wherein the yellowness is less than 3.0.   The width of the base material and the width of the film layer are wider than the width of the resin layer, and the base material and the film layer are directly bonded at both ends. The wallpaper according to any one of the above. Wallpaper according to any one of claims 1 to 6, wherein the resin layer is a basis weight of ^{100g / m 2 ~220g / m 2} .   The wallpaper according to any one of claims 1 to 7, wherein the base material is plain paper.   The wallpaper according to any one of claims 1 to 8, wherein the polyvinyl chloride resin is a polyvinyl chloride resin for paste processing. Regarding the width (R) of the resin layer and the width (F) of the film layer,
The wallpaper according to any one of claims 1 to 9, wherein “the width (F) of the film layer−the width (R) of the resin layer ≦ 4 mm” is satisfied. The width (P) of the base material satisfies “the width (P) of the base material−the width (F) of the film layer> 0 mm”, wherein the width (P) of the film layer is greater than 0 mm. wallpaper. A step of laminating a resin layer containing a polyvinyl chloride resin on the upper side of the base material,
A film laminating step of laminating a film layer on the upper side of the resin layer,
The wallpaper according to any one of claims 1 to 11, wherein the width of the film layer is wider than the width of the resin layer, and the substrate and the both ends of the film layer are directly bonded in the film laminating step. Manufacturing method.

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