JP3447679B2 - Wallpaper having a Stekihito sizing degree of 30 minutes or more and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a novel high quality wallpaper and a method for manufacturing the same. More specifically, water resistance,
The present invention relates to a wallpaper having excellent properties such as workability, delamination resistance, antifouling property, and designability, and a method for producing the wallpaper.

[0002]

2. Description of the Related Art Wallpapers having various structures have been known. For example, there are water-based wallpaper in which an aqueous resin emulsion is applied on a base sheet, and vinyl chloride wallpaper in which vinyl chloride plastisol is applied on a base sheet.
In these wallpaper, a foaming agent is contained to give a three-dimensional effect.

However, in the above PVC wallpaper,
Not only is it unfavorable in terms of environmental hygiene, since it has a problem in terms of poor air permeability and contains a large amount of various plasticizers which have recently been regarded as environmental hormones.

On the other hand, a great number of water-based wallpapers have recently been proposed as a solution to the problems of this vinyl chloride wallpaper, and for example, an aqueous emulsion of ethylene-vinyl acetate resin or acrylic resin is used. Some of them have been used (JP-A-6-47875, JP-A-7-18850).
No. 2).

However, these water-based wallpapers have remarkably inferior water permeation resistance, so that there is a problem of opening when they are applied to a wall surface, and the open time is not sufficient, so that they are extremely inferior in workability and antifouling. There was also a problem in terms of design and design.

On the other hand, among these problems, for the purpose of improving the problem of designability, there has been proposed a structure in which a nonwoven fabric composed of a cellulosic fiber and a heat-fusible fiber is bonded to the above-mentioned aqueous wallpaper. (Japanese Patent Laid-Open No. 2000-15
4499), there is still a problem in terms of water permeation resistance, the workability is extremely poor, and the bonded nonwoven fabric adsorbs dirt on the contrary, which is rather an adverse effect in terms of antifouling property, It has been pointed out that the non-woven fabric is liable to be delaminated and impairs the appearance.

Also, simply stick the base and the non-woven fabric together,
There is also known one which does not use a foaming agent (Japanese Patent Laid-Open No. 11-
No. 217799), the three-dimensional effect is lacking and the designability is poor, and the non-woven fabric is apt to be soiled similarly to the above.

Therefore, under the present circumstances, the development of high-quality wallpaper that fully satisfies the above-mentioned qualities required for wallpaper is awaited.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned problems, and an object of the present invention is to achieve sufficient quality required for wallpaper, that is, water resistance, water resistance, and water resistance. By providing high quality wallpaper that satisfies stain resistance, designability, etc., especially by dramatically improving water resistance,
It is to provide a high-quality wallpaper with extremely excellent workability, in which opening due to poor water resistance is prevented and open time is improved.

[0010]

Means for Solving the Problems The inventors of the present invention have conducted extensive studies to solve the above-mentioned problems, and found that a foam layer, a non-woven fabric layer and an antifouling resin layer are sequentially laminated on a base sheet. As a wallpaper, it was found that when a crosslinkable component is contained in the foam layer, the layers can be integrated by the crosslinking reaction of the crosslinkable component, and high quality wallpaper can be obtained. Completed the invention.

That is, the present invention relates to a high quality wallpaper having the following constitution and a method for manufacturing the same.

1. Crosslinkable acrylic on the base sheet
Aqueous resin consisting of ethylene resin and ethylene-vinyl acetate resin
A fat mixture, wherein the mixing ratio of the resin is a crosslinkable acrylic
20-90 wt% resin , ethylene-vinyl acetate resin
Two components, a resin component that is 80 to 10% by weight, and a crosslinking agent
A foam layer made of a crosslinkable resin composition, which is an essential component, a wallpaper formed by laminating a nonwoven fabric layer and then an antifouling resin layer in this order, wherein the crosslinking component of the foam layer penetrates into the nonwoven fabric layer, A wallpaper having a Steckigt sizing degree of 30 minutes or more, characterized in that a foaming layer and a non-woven fabric layer are substantially integrated by a crosslinking reaction occurring in both layers.

2. Antifouling resin layer, Stockigt sizing degree according to claim 1, wherein it is made of a resin composition comprising as essential components two components of the antifouling component and the resin component is 30 minutes or more picture.

3. The antifouling resin layer is made of a crosslinkable resin composition, and the three layers are substantially integrated by the crosslinking reaction of the crosslinking components in the foam layer, the nonwoven fabric layer and the antifouling resin layer. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1 or 2 .

4. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 3 , wherein the crosslinkable resin composition of the antifouling resin layer contains an antifouling component, a crosslinkable resin and / or a crosslinking agent as essential components.

5. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1, 2, 3 or 4, wherein the foam layer contains a filler together with a foaming agent.

6. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1, 2, 3, 4, or 5 , wherein the foaming agent is an expandable capsule foaming agent.

7. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1, 2, 3, 4, 5, or 6, wherein the surface of the antifouling resin layer is embossed.

8. The non-woven fabric layer surface or the antifouling resin layer surface is colored and processed.
A wallpaper with a Steckigt sizing degree of 5, 6 or 7 of 30 minutes or more.

9. The foaming layer, the nonwoven fabric layer, and then the antifouling resin layer are sequentially laminated on the base sheet, and after the cross-linking component of the foaming layer has penetrated into the nonwoven fabric layer, heat treatment is performed to simultaneously perform foaming and crosslinking. The method for producing a wallpaper according to claim 1, wherein the Steckigt sizing degree is 30 minutes or more.

10. 7. Forming a foamed layer on the base sheet, and then laminating by laminating a non-woven fabric layer when it is still in a wet state.
9. The method for producing wallpaper as described in 9, wherein the Steckigt sizing degree is 30 minutes or more.

11. Claim 9 or, characterized in applying simultaneously embossing a heat treatment or after heat treatment
10. The method for producing a wallpaper according to 10, wherein the Steckigt sizing degree is 30 minutes or more.

12. The antifouling resin layer may be formed on the surface of the non-woven fabric layer at any time selected from before heat treatment, after heat treatment, and after embossing treatment. Claims 9 and 10 characterized by
Alternatively, the method for producing a wallpaper according to 11, wherein the Steckigt sizing degree is 30 minutes or more.

13. Coloring processing enforcement timing of claim 9, 10, 11 or 12, characterized in that it is enforced in any timing before or after its formation to form an antifouling resin layer
A method for producing a wallpaper, wherein the described Steckigt sizing degree is 30 minutes or more.

Most of the papers are sized in order to impart resistance to the penetration of liquids such as ink and water. The degree of the effect of this size is the size, which is an important property for writing paper, printing paper, packaging paper, processed paper, and the like. The sizing test method is a physical test, a chemical method,
There are numerous types such as electrical methods, and the method that suits the actual purpose of use is adopted.

As one of the methods, the following JIS standard (J
According to IS P 8122), there is a Steckigt sizing degree, but the "Steckigt sizing degree" in the present invention is based on this measuring method.

"Fold each 5 cm square into a 2% ammonium thiocyanate solution (20 ± 1 ° C) and drop 1 drop of 1% ferric chloride solution at the same time. Measure the time (seconds) until the spot appears,
The size degree. The measurement is performed 5 times on each side of the test piece. The result is displayed as the number of seconds, rounded to the second. "
The present invention has been made based on the discovery of the following new facts.

1) There is a correlation between the required water resistance and the Steckigt sizing degree. 2) Therefore, by setting the Steckigt sizing degree to 30 minutes or more, sufficient water resistance can be obtained. 3) By this, extremely excellent workability can be obtained. 4) In order to satisfy the condition of the Steckigt sizing degree, a resin is blended in a fixed ratio in the foam layer, and the resin is mixed with a crosslinking agent. 5) By impregnating the non-woven fabric layer with the resin and the cross-linking agent, not only the water permeation resistance is improved, but also delamination is completely prevented and antifouling property is imparted. 6) By providing the antifouling resin layer, the antifouling property becomes more complete, 7) Therefore, a wallpaper having extremely high quality and excellent workability can be obtained.

A feature of the present invention is a wallpaper formed by sequentially laminating a foam layer, a non-woven fabric layer and an antifouling resin layer on a base sheet, in which the foam layer has a specific crosslinkable resin. A composition, that is, an aqueous resin mixture composed of a crosslinkable acrylic resin and an ethylene-vinyl acetate resin, the mixing ratio of the resin being 20 to 90% by weight of the crosslinkable acrylic resin,
Ethylene-vinyl acetate resin 80 to 10% by weight of a resin component and a cross-linking agent as two essential components, and the cross-linking component of the foam layer is permeated into the non-woven fabric layer, and the cross-linking reaction of the cross-linking component in both layers By integrating both layers with each other, a high quality wallpaper having a Steckigt sizing degree of 30 minutes or more is being obtained.

According to the present invention, by adopting the above novel constitution, it is possible to obtain a high-quality wallpaper excellent in water permeability, workability, delamination resistance, antifouling property, toughness, designability, etc. However, the reason why such a high quality wallpaper can be obtained in the present invention will be described below.

The most important feature of the present invention is that "the cross-linking component of the foam layer penetrates into the laminated non-woven fabric layer, and the cross-linking acrylic resin component of the cross-linking component and the cross-linking agent are present in both layers. A cross-linking reaction occurs in the two layers and the two layers are substantially integrated with each other. It also occurs between layers. "

Such an integration phenomenon is a novel phenomenon that was first confirmed in the present invention. The results (effects) brought about by the phenomenon are as follows.

(I) The non-woven fabric layer (antifouling resin layer) becomes difficult to peel off and becomes tough, and the water permeation resistance and antifouling property are dramatically improved.

(Ii) However, although the properties of the non-woven fabric layer are changed by such a crosslinking reaction, the reaction causes
Since the non-woven fabric itself does not change, the properties of the non-woven fabric itself are not lost, and since the uneven pattern imparted to the non-woven fabric is also naturally retained, the texture and three-dimensional effect of the wallpaper is better than usual. The result is further improved.

(Iii) Generally, since a non-woven fabric has a function of absorbing dirt, the non-woven fabric is easily soiled, but as a result of the cross-linking reaction in the non-woven fabric layer, the properties of the non-woven fabric are changed, and such non-woven fabric is easily soiled. In addition to being prevented, bleeding of tar etc. from the board etc. is prevented. This effect is further promoted as a synergistic effect by providing the antifouling resin layer.

(Iv) When the three layers of the foam layer, the nonwoven fabric layer and the antifouling resin layer are integrated, the antifouling resin layer is improved in delamination resistance and strength. The dirt performance is not destroyed.

(V) Since the water resistance of the wallpaper as a whole is remarkably improved, no problem occurs during the construction of the wallpaper. That is, the problem of opening seams and the problem of open time of construction glue (early overdrying) do not occur. Therefore, the workability is dramatically improved.

(Vi) The fact that the above is correct is clear from the results of Examples and Comparative Examples, which will be described later. In any case, in the present invention, the quality required for wallpaper, that is, In terms of obtaining a completely new high quality wallpaper that has excellent quality in all of water resistance, delamination resistance, toughness, three-dimensional effect, antifouling property, coatability, workability, etc., It can be said that the present invention is a valuable invention.

The present invention will be described in more detail below.

The high-quality wallpaper of the present invention comprises (1) a base sheet, (2) a foam layer made of a crosslinkable resin composition,
(3) Non-woven fabric layer, and then (4) antifouling resin layer are laminated in this order, and (5) Steckigt sizing degree is basically a specific value or more. Therefore, these configurations and the like will be described below.

(1) Base Sheet The base sheet used in the present invention may be any one, such as a conventionally known base material for wallpaper, and is not limited in any way.

Examples of such a base sheet include paper, synthetic paper, flame-retardant paper, non-combustible paper, inorganic paper, laminated paper, synthetic resin film, non-woven fabric and the like.

Considering the suitability for forming the foam layer attached to the base sheet, paper, synthetic paper, flame-retardant paper, non-combustible paper,
It is preferable to use inorganic paper, laminated paper, etc.,
Further, in consideration of fireproof properties and the like, it is more preferable to use flame-retardant paper, non-combustible paper, inorganic paper or the like.

(2) Foamed layer The present foamed layer forms the core of the present invention, and has the usual function of foaming by heat treatment to give a three-dimensional effect to the wallpaper, and the features of the present invention. It also contributes to the integration with the non-woven fabric.

The foam layer of the present invention comprises a crosslinkable aqueous resin composition containing (i) a foaming agent, and (ii) (a) a specific resin component and (b) a crosslinking agent as two essential components. Is.

Therefore, such a foam layer is formed,
(I) a foaming agent, and (ii) a crosslinkable resin composition,
This will be described below.

(I) Foaming Agent As the present foaming agent, an expandable capsule foaming agent can be used.

As the expandable capsule foaming agent, conventionally known ones can be used without particular limitation.

For example, in a fine particle having a thermoplastic resin composed of a homopolymer or a copolymer of acrylic acid ester, vinylidene chloride, acrylonitrile, urethane, etc. as a film, ethane, butane, pentane, neopentane, hexane, heptane, etc. It contains a hydrocarbon-based volatile expansive component and has a particle size of approximately 1 to 100.
μm and when heated above the boiling point of the expansion component,
A material having a property of increasing the volume by several times to several thousand times is preferably used.

As long as the volume of the expanded capsules is increased by heat treatment, the expanded capsules may be in an unexpanded state or a pre-expanded state, and any of them may be used.
It can be added as a foaming agent.

The blending ratio of such an expandable capsule foaming agent can be selected according to the desired foaming effect (volume expansion effect) without particular limitation.
It can be arbitrarily selected within the range of about 1 to 100 parts by weight with respect to 0 parts by weight.

(Ii) Crosslinkable Resin Composition The crosslinkable resin composition comprises a composition containing two components, (a) a resin component and (b) a crosslinking agent, as essential components. Hereinafter, the (a) resin component and the (b) crosslinking agent will be described.

(A) Resin Component The resin component is a resin mixture comprising (a) a crosslinkable acrylic resin and (b) an ethylene-vinyl acetate resin, and the mixing ratio of the resin is a crosslinkable acrylic resin. 20 ~
The essential requirements are 90% by weight and 80 to 10% by weight of ethylene-vinyl acetate resin.

That is, when the amount of the crosslinkable acrylic resin is small, the water resistance is poor, and when the amount is large, the three-dimensional effect is lost and the coating suitability on the base sheet is poor, and streaks and cracks are generated. In addition, if the ethylene-vinyl acetate-based resin is small, the three-dimensional effect becomes poor, and if it is large, the water permeation resistance is deteriorated, and in any case, the suitable Steckigt sizing degree according to the present invention cannot be obtained.

The (a) crosslinkable acrylic resin and the (b) ethylene-vinyl acetate resin which constitute the present resin component will be described below.

These resin components are added as an aqueous dispersion, preferably an aqueous emulsion.

(A) Crosslinkable Acrylic Resin The present crosslinkable acrylic resin is used for adding water permeation resistance, and particularly contributes to the improvement of water permeation resistance by a crosslinking reaction with a crosslinking agent. That is, it plays an important role. And thereby, the suitable Steckigt sizing degree required for this invention will be obtained.

The present crosslinkable acrylic resin, together with the crosslinking agent, penetrates into the later-described nonwoven fabric layer and causes a crosslinking reaction with the crosslinking agent in both the foamed layer and the nonwoven fabric layer. When integrated, it also plays an important role of contributing to the reinforcement and antifouling property of the nonwoven fabric layer.

Therefore, as the crosslinkable acrylic resin,
Any one can be used as long as it has a functional group capable of reacting with the crosslinking agent.

Examples of such a functional group include a hydroxyl group, a carboxyl group, an epoxy group, a methylol group, an aminomethylol group, a vinyl group, an allyl group, an amino group, an alkoxysilane group, a silicon group, a cyano group and an amide group. Is mentioned.

As the acrylic resin having such a functional group, for example, a (meth) acrylic acid ester is mainly used, and an acrylic crosslinkable functional monomer ((meth) acrylic acid, (meth) acrylamide) is added thereto. , Amino (meth) acrylate, N-methylol (meth) acrylamide, butoxymethyl (meth) acrylamide,
(Meth) acrylonitrile, glycidyl (meth) acrylate, hydroxyethyl mono (meth) acrylate, etc.), reactive (meth) acrylic resin; polyacrylonitrile resin; polyacrylamide resin; poly (meth) acrylic acid Resin etc. are mentioned. These resins may be used alone or in combination.

As long as the crosslinkable acrylic resin having a functional group as described above is used, an acrylic resin having no functional group can be used together.

(B) Ethylene-Vinyl Acetate Resin The ethylene-vinyl acetate resin has a function of ensuring the steric effect due to the function of the foaming agent, and complements the above acrylic resin which is inferior in such effect. Is responsible for

As the ethylene-vinyl acetate resin,
Any one such as a conventionally known one may be used.

For example, ethylene-vinyl acetate copolymer,
Examples thereof include ethylene-vinyl acetate-vinyl chloride copolymers, and copolymers of these copolymers with (meth) acrylic acid ester-based, urethane-based, polyester-based copolymers, and other various natural rubbers. There may be mentioned those obtained by blending these resins with synthetic rubbers and the like,
It is not limited to these. In the present invention, these may be used alone or in combination of two or more.

(B) Cross-linking agent As described above, the cross-linking agent penetrates into the non-woven fabric layer together with the cross-linkable acrylic resin of (a) to form both the foam layer and the non-woven fabric layer (further, the antifouling resin). 3 layers including layers),
As a result of causing a crosslinking reaction with the resin, the present invention contributes to the achievement of the critical value of the Steckigt sizing degree of 30 minutes or more, which is the greatest feature of the present invention, and at the same time, by integrating these two layers, the nonwoven fabric It also plays an important role in contributing to strengthening and antifouling properties.

The crosslinking agent may be of any type as long as it has a functional group capable of undergoing a crosslinking reaction with the crosslinkable acrylic resin (a).

For example, isocyanate compounds (particularly blocked isocyanate compounds are preferable), epoxy compounds, amino compounds, imino compounds, carboxy compounds,
Alcohol compounds, phenol compounds, unsaturated compounds,
Examples thereof include polyvalent metal compounds and the like (“compounds” include low molecular weight compounds, oligo compounds, high molecular weight compounds, etc.).

Such a cross-linking agent may be appropriately selected according to the kind of the above-mentioned cross-linkable acrylic resin which is the object of the cross-linking reaction.

(C) Additives The crosslinkable resin composition of the present invention may optionally contain known additives other than the above-mentioned components.

As such an additive, a filler can be first mentioned.

As the filler, for example, calcium carbonate, precipitated barium sulfate, dolomite, titanium oxide, aluminum hydroxide, alumina, lithopone, kaolin, diatomaceous earth, bentonite, chemical gypsum, etc. can be used. It is not limited to these.

In addition, various materials such as a dispersant, a flame retardant, a plasticizer, an antibacterial agent, an antiseptic, an antifungal agent, an adsorbent, a deodorant, a coloring agent, and a fragrance can be used.

(D) Coating Method The present foam layer is formed by coating the above-mentioned aqueous crosslinkable resin composition containing a foaming agent on a base sheet.

In the present invention, the coating method of the aqueous composition is not particularly limited, but for example, knife coating method, air knife coating method, gravure coating method, reverse coating method, roll coating method, sponge roll coating method, reverse method. The above coating agent is usually coated on the base sheet in an amount of 25 to 500 by a known method such as a roll coating method, a bar coating method, a comma coating method, a spray coating method, a flat screen method and a rotary screen method.
g / m ^2, preferably it can be formed coating at a coverage of from 50 to 300 g / m ^2.

(3) Non-woven fabric layer The non-woven fabric layer is provided in order to impart a good texture and an excellent three-dimensional effect to the wallpaper, and is the greatest feature of the present invention, which is described in (2) above. It is said that it is laminated on the foam layer, and the cross-linking components (cross-linking acrylic resin and cross-linking agent) in the foam layer are permeated into the non-woven fabric layer to cause a cross-linking reaction of both components and to integrate both layers. In that respect, it plays a very important role.

In the present invention, due to the occurrence of such a crosslinking reaction, the boundary between the non-woven fabric layer and the foamed layer disappears, both layers are substantially integrated, and the properties of both layers are changed, which is unprecedented. It is possible to obtain a high-quality wallpaper having excellent properties such as water resistance, delamination resistance, and stain resistance.

The nonwoven fabric layer of the present invention is wholly or partly melted or softened by heat applied in any one or more of a laminating step, a heating (foaming, crosslinking) step and an embossing step which will be described later. Characteristics (below,
In the present invention, those having this property are referred to as "heat-fusible"), and more preferably 60
Those having a melting point or a softening point of ℃ or more and 180 ℃ or less,
It can be mentioned as a suitable example. If the melting point or softening point is less than the above value, while blocking is likely to occur during or after the manufacturing process,
If the value exceeds the above value, the formability during the embossing process may not be sufficiently achieved.

Since the nonwoven fabric layer of the present invention has such characteristics, the integration with the foam layer is improved, and the shapeability during the embossing step is particularly excellent, resulting in a three-dimensional shape having a sharp embossed pattern. It is possible to give the effect an excellent appearance.

Moreover, since the original excellent texture of the non-woven fabric layer can be exhibited without any damage, both the good texture and the excellent three-dimensional effect, which are the features of the present invention, are achieved.

Such a non-woven fabric layer includes, of course, those in which the constituent fibers themselves constituting the layer become heat fusible by the application of the above-mentioned heat. It broadly includes those in which the binder components contained therein are heat fusible under the same conditions, those in which both of them coexist, and the like.

Examples of such heat-fusible constituent fiber species include, but are not limited to, polyester, nylon, polyolefin, acrylic, urethane, acetate and vinylon. In the present invention, considering functional factors such as texture and economical factors such as cost, it is preferable to use at least one selected from polyester, nylon, and polyolefin.

On the other hand, as the above-mentioned binder component, it may be added in the form of fiber, in the form of powder, or in the form of solution or dispersion. However, the form of addition is not limited in any way, and any one can be used as long as it becomes heat fusible by the application of heat.

For example, short fibers composed of a low melting point modified polyester or polyolefin, or a composite fiber type short fiber containing them as a sheath component and using a high melting point or infusible fiber-forming polymer as a core component, or various types Of acrylic type, styrene-butadiene copolymer type,
Adhesive components such as vinyl acetate-ethylene copolymer system, vinyl acetate-acrylic copolymer system, polyvinyl acetate system, acrylonitrile system, nylon system, polyester system, polyolefin system, etc. can be mentioned, but are not limited thereto. is not.

As long as the nonwoven fabric layer of the present invention contains the above-mentioned heat-fusible component, it can freely contain other constituent fiber types that do not exhibit heat-fusible property, and any desired characteristics can be obtained. It is possible to provide a nonwoven fabric layer having

Examples of constituent fiber types that do not exhibit such heat fusibility include synthetic fibers, semi-synthetic fibers, regenerated fibers, natural fibers,
A wide range of materials such as inorganic fibers, glass fibers and pulp can be used. Examples thereof include rayon, pulp, cellulose, polyester, nylon, acrylic, urethane, acetate, aramid, vinylon, fluorocarbon, and polyether ether ketone, but are not limited thereto.

In addition to the above-mentioned components, the nonwoven fabric layer of the present invention may optionally contain extender pigments such as titanium oxide and calcium carbonate and various fillers, as well as deodorants and antibacterial agents. It is also possible to add additives such as a fungicide, a flame retardant, a water repellent, an antifouling agent, a coloring agent and a fragrance.

The non-woven fabric layer may be a laminate of two or more layers of the same or different types.

As the non-woven fabric constituting such a non-woven fabric layer, for example, a spun bond method, a melt blow method, a flash spinning method, a dry method, a wet method, an air laid method, a dry pulp method and the like are used to produce a web. If necessary, this web can be subjected to a thermal bond method, a chemical bond method,
Examples thereof include those combined by various methods such as a needle punch method, a hydroentanglement method (spunlace method), and a stitch bond method.

Further, these non-woven fabrics are composed of the above-mentioned composite fibers, those produced by combining two or more of the above-mentioned production methods, or the structure in which two or more layers of the same or different webs are laminated. Can also be included.

As described above, as the non-woven fabric, the above-mentioned heat-fusible one is preferable, but a non-woven fabric made of paper can also be used depending on the purpose.

As the above-mentioned papers, pulp paper, recycled fiber paper, semi-synthetic fiber paper, synthetic fiber paper, Japanese paper and the like can be suitably used without any particular limitation.

In the present invention, these are referred to as papers for convenience, but naturally, those classified as non-woven fabrics are also included in the scope.

In the present invention, among the above papers,
It is particularly preferable to use so-called rayon paper, which comprises at least rayon short fibers. Of course, these rayon papers may include those in which natural cellulose, pulp, or other synthetic fiber species are mixed, and those in which various binder components are added.

Examples of the constituent fiber (short fiber) species of these papers include the same as those exemplified above, and various binder components may be added to these constituent fiber species. In addition, extenders such as titanium oxide and calcium carbonate and various fillers can be optionally added, and deodorant, antibacterial agent, antifungal agent, flame retardant, antifouling agent,
Even if additives such as water repellent, colorant, and fragrance are added,
No problem whatsoever.

The method for producing these papers (or non-woven fabrics) is not limited in any way.

Further, it is of course possible to employ a structure in which these papers and the above-mentioned heat-fusible non-woven fabric are laminated in two or more layers.

(4) Antifouling Resin Layer As described above, the antifouling resin layer further improves the antifouling property of the non-woven fabric layer, which is dramatically improved by the integration of the foam layer and the non-woven fabric layer. It plays the role of completely preventing various stains at the actual use level after attachment.

That is, the reason why the wallpaper of the present invention exhibits a particularly excellent antifouling property as compared with various conventional wallpaper is that the foam layer and the non-woven fabric layer are integrated and the antifouling resin layer is formed. That is nothing but synergistic action.

The present antifouling resin layer is formed by coating the surface of the nonwoven fabric layer with a composition containing two components, an antifouling component and a resin component, as essential components. However, as described below, when the surface of the non-woven fabric layer is colored, the non-woven fabric layer may be coated and formed, and the anti-fouling resin layer may be colored.

Examples of the antifouling component include fluororesins, silicone resins, various waxes, and the like, and preferred examples are those exhibiting mainly water repellency.

Examples of the resin component include, but are not limited to, the same crosslinkable acrylic resins and ethylene-vinyl acetate resins as those used to form the foam layer. However, among these resins, it is particularly preferable to use a crosslinkable acrylic resin, and it is particularly preferable to crosslink this with the above-mentioned crosslinking agent. In this case, not only the foamed layer and the non-woven fabric layer but also the three layers of the both layers and the antifouling resin layer are substantially integrated. As a result, the water permeation resistance and the like are further improved, but since the three layers are integrated, the anti-fouling resin layer has improved delamination resistance and strength, so that the antifouling performance is not destroyed. Becomes

Further, when a photocatalyst such as titanium oxide is used together with these components, a self-cleaning action against stains can be imparted, and an antibacterial action and a deodorizing action can be imparted. You can

The antifouling resin layer is formed by coating the above-mentioned composition, preferably as an aqueous composition, by the same method as forming the foamed layer by coating.

(5) Steckigt Sizing Degree As described above, the Steckigt sizing degree is an index showing the water permeation resistance of paper and the like. Is.

Those having a Steckigt sizing degree of less than 30 minutes have low water permeation resistance, and therefore, when wallpaper is applied, problems such as opening and open time or bleeding of blemishes occur, resulting in poor workability. There is a problem with the product, and its commercial value is low.

For example, as described above, the conventional ethylene-vinyl acetate resin, which has recently become popular due to environmental problems, has a Steckigt sizing degree of about 10 minutes, and has a water permeation resistance. The workability is extremely low and there is a problem in workability.

On the other hand, since the wallpaper of the present invention has the Steckigt sizing degree of 30 minutes or more and the water resistance is extremely high, the above problems do not occur at all, and there is no problem in workability. Does not reduce its commercial value.

As described above, in the present invention, the reason why such a high Steckigt size is obtained is that the crosslinkable component is used as the constituent component of the foam layer. .

(6) Processing of laminate The high-quality wallpaper of the present invention comprises a base sheet, a foam layer, a non-woven fabric layer, and an antifouling resin layer laminated in this order, and the cross-linking component of the foam layer is applied to the non-woven fabric layer. After permeation, the laminate can be manufactured by finally subjecting it to a treatment such as a foaming treatment or a crosslinking treatment.

The foaming treatment or the crosslinking treatment of the present invention may be carried out separately, but it is advantageous to carry out them simultaneously. In that case, 50 ° C to 300 ° C, preferably 100 ° C to 200 ° C
At the temperature of 0.1 to 5 minutes, preferably 30 seconds to 3 minutes, exposure can be carried out to cause the desired foaming or crosslinking.

As another method, the base sheet on which the foam layer and the non-woven fabric layer are laminated is dried, but is heated to a first temperature at which the foaming agent does not foam and does not crosslink for a first time, and then In addition, there is also a method in which the foaming agent is foamed and the crosslinking reaction is caused by heating to the second temperature for the second time.
In this case, it is also possible to employ a method in which a crosslinking reaction partially occurs during drying.

The method of laminating the nonwoven fabric layer of the present invention on the foam layer is not particularly limited, and any method may be adopted.

However, considering the efficient penetration of the cross-linking component of the foam layer into the non-woven fabric layer, it is preferable to adopt the method which is carried out when the foam layer is still wet after coating. .

Then, the laminate is dried once or directly, without being dried, the antifouling resin layer is directly laminated on the non-woven fabric layer, and then the heat treatment is performed under the above conditions. By this, the foamed layer is foamed (volume expansion) and a crosslinking reaction is caused to give the wallpaper of the present invention three-dimensional effect, water permeation resistance, antifouling property and the like.

Further, more preferably, by performing embossing treatment using an embossing roll or the like after or at the same time as this heat treatment, the wallpaper of the present invention having an extremely excellent three-dimensional effect can be obtained.

The antifouling resin layer may be formed by coating after the above-mentioned heat treatment or embossing treatment, or a non-woven fabric layer which has been previously formed by coating is used. As a mode to be used in the laminating step,
It does not depart from the gist of the present invention.

(7) Coloring Treatment In the present invention, various treatments can be applied to the surface of the nonwoven fabric layer or the surface of the antifouling resin layer. For example,
Coloring processing can be mentioned.

Examples of the coloring process include ordinary dyes and pigments, other thermochromic agents, photochromic agents, electrochromic agents, phosphorescent pigments, fluorescent pigments, pearl pigments, metallic pigments, ultraviolet light emitting pigments, glass powders, metal powders. An excellent decorative effect can be imparted by coating and forming a coloring agent containing a coloring component such as

The coloring process may be performed on the entire surface or on a pattern pattern formed by partial coloring. For example, it can be carried out by a gravure coating method or a rotary screen method. it can.

Besides, it is also possible to impart an aroma effect by treating the surface of a flavoring agent containing a flavoring agent or a flavoring agent-containing microcapsule.

The coloring process may be performed before the above-mentioned lamination, or before or after the heat treatment after the lamination or after the heat treatment. Alternatively, it can be applied after embossing.

(8) Applications The high-quality wallpaper of the present invention is not only used for the purpose of decorating the interior wall surface, ceiling surface or floor surface, but also various decorative sheets such as fusuma paper and interior materials for vehicles. Can also be used for.

[0124]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in more detail below with reference to Examples, but the present invention is not limited to these Examples.

In the following description, "part" means "part by weight".

[0126]

Example 1 An ethylene-vinyl acetate copolymer resin (hereinafter referred to as EVA resin) aqueous emulsion (Panflex 4500 (solid content 55%) on a flame-retardant paper (Kishu Paper Co., Ltd.) having a base sheet of 120 g / m ² ): Kuraray Co., Ltd.) 2
0 parts, acrylic resin aqueous emulsion (YS-002
(Solid content 40%), crosslinkable functional group (hydroxyl group and carboxyl group): 30 parts, Light Chemical Co., Ltd., expandable capsule foaming agent (Microsphere F-85: Matsumoto Yushi Co., Ltd.), 7 parts, Calcium carbonate 20 parts, aluminum hydroxide 15 parts, titanium oxide 5 parts, dispersant 1 part, crosslinking agent (Prominate XC-910 (block isocyanate):
Takeda Pharmaceutical Co., Ltd. 120 parts of a water-based paint (water-based crosslinkable resin composition) consisting of 1.5 parts using a comma coater.
Apply a thickness of g / m ² (Wet weight) to form a foam layer,
Then, when the paint is still wet, a 15 g / m ² non-woven fabric (100% heat-fusible polyester) is stuck together, and 12
It was dried at 0 ° C. for 2 minutes to obtain a laminate in which a foam layer and then a nonwoven fabric layer were laminated on the base sheet.

The coatability of the water-based paint was free from streaks and cracks and had no problem.

Then, on the non-woven fabric layer of the obtained laminate,
After performing a printing process by printing a floral pattern using a gravure printing machine, using the same printing machine on the entire surface,
As a water-based antifouling agent, a paraffin antifouling component-containing acrylic resin emulsion (mixed paraffin wax emulsion (solid content 56.5%) 25 parts: an acrylic resin emulsion having a hydroxyl group and a carboxyl group as a crosslinkable functional group (YS -002; Solid content 40%: Light Chemical Co., Ltd. 10 parts: Cross-linking agent consisting of blocked isocyanate (Prominate XC-910: 0.5 part Takeda Chemical Industries, Ltd.), 15 g / m ² (Wet weight) ), The antifouling resin layer was formed, and the obtained laminate was dried at 120 ° C. for 30 seconds.

After that, the dried laminated body was
After heating at 80 ° C. for 60 seconds to foam the laminate, an embossing roll was used to form an uneven pattern to obtain a desired wallpaper.

The obtained wallpaper has a Steckigt sizing degree of 92.
And the foam layer, the non-woven fabric layer and the antifouling resin layer are substantially integrated (in particular, the non-woven fabric is left only on its surface and is just buried in the foam layer). It was a wallpaper that had no layer delamination and had extremely excellent water permeation resistance and antifouling properties, and it was a very beautiful wallpaper with a three-dimensional nonwoven fabric and a soft surface touch.

Then, the back surface of the obtained wallpaper was coated with a construction paste (synthetic starch) at a thickness of 100 g / m ² and laminated on a commercially available veneer plate, and there was no seam opening and dimensional stability. It was a wallpaper that was excellent in workability and excellent in open time.

Further, the environment in which the constructed wallpaper has dew condensation,
Also, even after 3 months had passed in a high-humidity environment, the pimple scum did not ooze onto the wallpaper surface, and the daily antifouling function of coffee and the like was excellent.

[0133]

Example 2 The resin emulsion of the water-based paint used in Example 1 was replaced with EVA resin emulsion (Sumikaflex S
-401 (55% solid content): Sumitomo Chemical Co., Ltd. 10
Parts, acrylic resin emulsion (YS-002 (solid content 40%); crosslinkable functional group (hydroxyl group and carboxyl group): Light Chemical Co., Ltd.) 40 parts, all in the same manner as in Example 1. Got the desired wallpaper by.

The obtained wallpaper has a Steckigt sizing degree of 12
It is 8 minutes, and the foam layer, the non-woven fabric layer, and the antifouling resin layer are substantially integrated (in particular, the non-woven fabric remains only on the surface and is just buried in the foam layer). The layer did not cause delamination at all, and it was a wallpaper having extremely excellent water permeation resistance and stain resistance.

Further, the performance of the obtained wallpaper is the same as that of the wallpaper obtained in Example 1 in that there is no problem in workability such as opening, open time, etc., and there is no vexing of veneer after the work. The condensed water did not seep out.

[0136]

Example 3 The resin emulsion of the water-based paint used in Example 1 was replaced with EVA resin emulsion (Polysol AD-5).
(Solid content 56%): Showa Polymer Co., Ltd. 35 parts, acrylic resin emulsion (Parabond A (solid content 40%
%), Crosslinkable functional groups (amino group and hydroxyl group): Parachem Japan Co., Ltd. 15 parts aqueous emulsion; non-woven fabric layer 15 g / m ² of Japanese paper; and antifouling resin layer aqueous antifouling The treating agent was an acrylic resin emulsion containing a fluororesin antifouling component (fluororesin antifouling component (Rykenparan FG-15N; solid content 30%: Miki Riken Industry Co., Ltd.) 8
Part: Acrylic resin emulsion having an epoxy group and a carboxyl group as crosslinkable functional groups (Iodosol AD
-59; solid content 47%: Nippon NSC Ltd. 14
Part: 0.7 part of a crosslinking agent which is an oxazoline-based reactive polymer (Epocros K-1020E: Nippon Shokubai Co., Ltd.)
The target wallpaper was obtained in the same manner as in Example 1, except that the wallpaper was changed.

The obtained wallpaper has a Steckigt sizing degree of 39.
And a structure in which the foam layer, the non-woven fabric layer and the antifouling resin layer are substantially integrated (particularly, Washi leaves only its surface,
It was just buried in the foamed layer), the layer did not cause delamination at all, and the wallpaper had extremely excellent water permeation resistance and stain resistance.

[0138] Further, the performance of the obtained wallpaper was the same as that of the wallpaper obtained in Example 1, and there was no problem in the workability, and there was no bleeding of veneer scum. Moreover, even if the craftsman soiled the wallpaper surface with dirty hands at the time of construction, it could be wiped off with a rag or the like, showing an excellent antifouling effect.

On the other hand, the obtained wallpaper surface had a harder texture than that of the non-woven fabric (100% of heat-fusible polyester) obtained in Example 1, but was excellent in gravure since the surface of Japanese paper was smooth. It was a wallpaper with excellent design and antifouling properties due to its printability.

[0140]

Example 4 An EVA resin aqueous emulsion (Panflex OM4500 (solid content: 55%)) was formed on a base sheet of 110 g / m ² plain paper (Chuetsu Paper Industries Co., Ltd.):
Kuraray Co., Ltd. 20 parts, acrylic resin aqueous emulsion (Iodozol MD-61 (solid content 40%), crosslinkable functional group (hydroxyl group and carboxyl group): Nippon NSC Co., Ltd.) 30 parts, expandable capsule Foaming agent (Microsphere F-85: Matsumoto Yushi Co., Ltd.) 12 parts, calcium carbonate 14.5 parts, aluminum hydroxide 15 parts, titanium oxide 5 parts, dispersant 1 part, cross-linking agent (Epocros K-1030).
E-oxazoline group-containing polymer: Nippon Shokubai Co., Ltd. 1.
When 5 parts of an aqueous paint (aqueous crosslinkable resin composition) was applied with a reverse coater at a thickness of 100 g / m ² (Wet weight) to form a foam layer, and then when the paint was still wet As a non-woven fabric layer, a non-woven fabric of 20 g / m ² (rayon 50%, heat-fusible polyester 50%) is laminated, dried at 120 ° C. for 2 minutes, and then heated at 80 ° C. with a press roll. By pressing, a foamed layer was formed on a base sheet having a smooth surface, and a nonwoven fabric layer was laminated on the foamed layer to obtain a laminate.

The coatability of the water-based paint had no problems such as streaks and cracks.

Then, on the non-woven fabric layer of the obtained laminate,
A grid pattern is printed using a gravure printing machine, and a rotary printing machine is used on the top of the grid pattern as a water-based antifouling agent containing a paraffin antifouling component-containing acrylic resin emulsion (mixed paraffin wax emulsion (solid content 5
6.5%) 8 parts: Acrylic resin emulsion having a hydroxyl group and an amino group as a crosslinkable functional group (Parabond A; solid content 40%: Parachem Japan Co., Ltd.) 12 parts:
Crosslinking agent consisting of an epoxy-based reactive polymer (Eporsion EA-3: 0.8 part by Nippon NSC Ltd.) 4 parts
It was applied to a thickness of 0 g / m ² (wet weight) to form an antifouling resin layer, and a laminate was obtained. Then, this laminate is
Drying was performed at 0 ° C. for 45 seconds.

Thereafter, the dried laminated body is continuously processed into 18
After heating at 0 ° C. for 60 seconds to foam the laminate, an embossing roll was applied to provide an uneven pattern to obtain a desired wallpaper.

The obtained wallpaper has a Steckigt sizing degree of 96.
And the foam layer, the non-woven fabric layer and the antifouling resin layer are substantially integrated (in particular, the non-woven fabric is left only on its surface and is just buried in the foam layer). The wallpaper did not cause delamination of the layers at all and had excellent water permeation resistance and stain resistance.

The obtained wallpaper was three-dimensional and had an excellent embossed shape retention property, and the surface thereof was a soft, warm and beautiful article which the nonwoven fabric had.

Next, on the back surface of the obtained wallpaper, a construction paste (synthetic starch) was applied at a thickness of 100 g / m ² and the composition was pasted on cement mortar. It was a wallpaper that was excellent in workability and had no problems with open time. Moreover, even if a craftsman stains the surface of the wallpaper at the time of construction, or if the wallpaper is soiled with coffee or a water-based pen after construction, it can be removed with a detergent, and the wallpaper has extremely excellent stain resistance. In addition, even after the passage of three months after the wallpaper was applied, the cement mortar did not seep out due to dew condensation or the like.

[0147]

[Embodiment 5] The nonwoven fabric used in Embodiment 4 has a weight of 18 g / m ^2.
A target wallpaper was obtained in the same manner as in Example 4, except that the non-woven fabric of 100% rayon with the cloud dragon pattern was used.

The obtained wallpaper became an even more three-dimensional wallpaper because the gravure-printed grid pattern appeared on the ground pattern of the cloud dragon pattern. Moreover, by changing the bonded non-woven fabric material to 100% rayon, it became a wallpaper with a softer surface touch.

The wallpaper obtained has a Steckigt sizing degree of 90 minutes, is excellent in water permeation resistance, and has a structure in which a foam layer, a nonwoven fabric layer and an antifouling resin layer are substantially integrated (particularly,
The non-woven fabric was in a state where it was just buried in the foam layer, leaving only the surface thereof, and the layer did not delaminate, and was excellent in other workability and antifouling performance.

[0150]

Comparative Example 1 The resin emulsion of the water-based paint used in Example 1 was replaced with EVA resin emulsion (Panflex OM
4500 (55% solid content): Kuraray Co., Ltd. A target wallpaper was obtained in the same manner as in Example 1 except that the amount was changed to 50 parts. The obtained wallpaper has a Steckigt size degree of 10
It was a minute, and it was a wallpaper with extremely poor water resistance.

Next, the back surface of the wallpaper was coated with a construction paste (synthetic starch) at a thickness of 100 g / m ² and attached on a commercially available plywood board, and an opening of about 0.5 mm was formed at the joint portion. Moreover, the open time was short, and it could not be pasted well on the plywood board.

Further, when the applied wallpaper was left for 3 months in the environment with dew condensation and high humidity as in the case of Example 1, veneer's ooze exuded on the surface of the wallpaper and a yellow spot pattern was formed. did.

From the results of this comparative example, when a crosslinkable resin, that is, a crosslinkable acrylic resin is not used as the crosslink component of the foam layer, the crosslink reaction does not occur, so that the Steckitt size degree of the wallpaper is large. Is less than 30 minutes, which means that problems such as water permeability resistance and workability occur.

[0154]

Comparative Example 2 A target wallpaper was obtained in the same manner as in Example 1, except that the crosslinking agent (blocked isocyanate) compounded in the water-based paint used in Example 1 was omitted.

The obtained wallpaper has a Steckigt sizing degree of 26.
However, the desired water-resistant wallpaper was not obtained. Subsequently, as a result of performing a construction test in the same manner as in Example 1,
Opening was 0.2 mm at the joint, and the open time was slightly short. Also, 3 months after the construction, stains were formed on the surface of the wallpaper due to a slight veneer.

From the results of this comparative example, when the crosslinking agent is not used as the crosslinking component of the foam layer, the crosslinking reaction does not occur, so that the Steckigt sizing degree of the wallpaper is lower than 30 minutes and the water resistance is high. It can be seen that there is a problem with workability and workability.

[0157]

[Comparative Example 3] The resin emulsion of the water-based paint used in Example 1 was the same as that of EVA resin emulsion, but acrylic resin emulsion (YS-002, crosslinkable functional group (hydroxyl group and carboxyl group) solid content 40%. : Light Chemical Co., Ltd.) The target wallpaper was obtained in the same manner as in Example 1 except that the amount was changed to 50 parts.

The obtained wallpaper has a Steckigt size degree of 1.
Although it was excellent at 35 minutes, the foaming effect was inferior and satisfactory designability could not be obtained.

From the results of this comparative example, it is understood that unless EVA resin is used as the resin of the foam layer, the foaming effect is inferior and satisfactory designability cannot be obtained.

[0160]

[Comparative Example 4] In Example 1, the water-based paint was treated at
Then, a wallpaper was obtained in exactly the same manner as in Example 1 except that the nonwoven fabric layer was laminated after being dried for 2 minutes.

The obtained wallpaper was such that the non-woven fabric layer was easily delaminated and did not have sufficient antifouling performance.

From the results of this comparative example, it can be seen that if the crosslinkable component in the foam layer has not penetrated into the nonwoven fabric layer and then is not crosslinked, the two layers will not be integrated and the intended purpose will not be achieved.

[0163]

Comparative Example 5 A wallpaper was obtained in the same manner as in Example 1 except that the antifouling resin layer was not provided. The obtained wallpaper did not have sufficient antifouling performance.

For example, in the case of stains on construction glue (starch-based), coffee, dust, water-based felt-tip pens, etc., Example 1
The sample of this comparative example was completely wiped off, while the sample of this comparative example had poor wiping property and stains remained.

From the results of this comparative example, it is understood that if the antifouling resin layer is not provided, sufficient antifouling property cannot be obtained even if the other conditions of the present invention are satisfied.

The results of the above Examples and Comparative Examples are summarized in Tables 1 and 2 (the antifouling properties are summarized in Table 2).

[0167]

[Table 1] ◎ ・ ・ ・ Particularly good ○ ・ ・ ・ Good △ ・ ・ ・ Slightly difficult × ・ ・ ・ Not possible

[Table 2] The evaluation was based on JIS L-0805 gray scale for contamination.

From the results shown in Tables 1 and 2 above, it was further clarified that high quality wallpaper of the present invention could be obtained by causing the integration phenomenon, which is a feature of the present invention. Believe.

[0169]

According to the present invention, as the resin component of the foam layer, the acrylic resin and the ethylene-vinyl acetate resin in a specific ratio are mixed and used together with the crosslinking agent, and the resin component of the foam layer and the crosslinking agent are used together. Penetrates into the laminated non-woven fabric layers, and a crosslinking reaction occurs between the acrylic resin component of the resin component and the crosslinking agent in both layers, resulting in a phenomenon in which both layers are substantially integrated. Further, this integration phenomenon also occurs in the three layers of the foam layer, the nonwoven fabric layer and the antifouling resin layer when the crosslinking component is also present in the antifouling resin layer.

As a result, the following excellent effects are brought about.

(1) The water permeation resistance is dramatically improved, and there is no problem of opening seams at the time of construction on the wall surface and no problem of open time of the construction glue (early overdrying). The workability is excellent.

(2) The non-woven fabric layer becomes difficult to peel off and becomes tough, and the antifouling property is dramatically improved.

(3) Generally, since a non-woven fabric has a function of absorbing dirt, the non-woven fabric is easily soiled, but as a result of the crosslinking reaction in the non-woven fabric layer, the properties of the non-woven fabric are changed, and such non-woven fabric is easily soiled. To be prevented.

(4) Further, this antifouling effect is particularly excellent in combination with the formation of the antifouling resin layer, but the three layers of the foam layer, the nonwoven fabric layer and the antifouling resin layer are integrated. In this case, the antifouling property of the antifouling resin layer is improved and the antifouling performance is not destroyed.

(5) Since the characteristics of the non-woven fabric itself are not lost and the concavo-convex pattern imparted to the non-woven fabric is naturally retained, the texture and three-dimensional appearance of the wallpaper are further improved as compared with the usual ones.

(6) Therefore, the present invention is excellent in all of the qualities required for wallpaper, that is, water resistance, workability, delamination resistance, toughness, three-dimensional effect, antifouling property, designability, etc. It is extremely valuable in that it has a completely new high-quality wallpaper that has excellent quality.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI D21H 19/20 D21H 19/20 A 21/16 21/16 27/20 27/20 A 27/30 27/30 A (56) References JP-A-61-92841 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06N ⁷ /00-7/06 B32B 5/22-5/32 B32B 33/00 D04H 1/40-1/42 D04H 1/54-1/56 D21H 19/20-19/22 D21H 21/14-21/16 D21H 27/18-27/20 D21H 27/30-27/42

Claims (13)

(57) [Claims] 1. A crosslinkable acrylic resin on a base sheet.
Aqueous resin mixture consisting of fat and ethylene-vinyl acetate resin
And the mixing ratio of the resin is a crosslinkable acrylic resin.
Fat 20-90% by weight, ethylene-vinyl acetate resin 80
Two components, a resin component and a cross-linking agent, of 10 to 10% by weight are required.
A foam layer comprising a crosslinkable resin composition which is a raw material component, a nonwoven fabric layer, and a wallpaper formed by laminating an antifouling resin layer in this order, wherein the crosslinking component of the foam layer penetrates into the nonwoven fabric layer. A wallpaper having a Steckigt sizing degree of 30 minutes or more, characterized in that a foaming layer and a non-woven fabric layer are substantially integrated by a crosslinking reaction occurring in the layer. Wherein antifouling resin layer, Stockigt sizing degree according to claim 1, wherein it is made of a resin composition comprising as essential components two components of the antifouling component and the resin component is 30 minutes or more picture . 3. The antifouling resin layer is composed of a crosslinkable resin composition, and the three layers are substantially formed by a crosslinking reaction of a crosslinking component in the foam layer, the nonwoven fabric layer and the antifouling resin layer. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1 or 2, which is integrated with the wallpaper. 4. The Steckigt sizing degree according to claim 3 , wherein the crosslinkable resin composition of the antifouling resin layer contains an antifouling component, a crosslinkable resin and / or a crosslinking agent as essential components. The wallpaper that is over. 5. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1, 2, 3 or 4, wherein the foam layer contains a filler together with a foaming agent. 6. The wallpaper according to claim 1, 2, 3, 4 or 5 , wherein the foaming agent is an expandable capsule foaming agent. 7. The wallpaper having a Steckigt sizing degree of 30 minutes or more according to claim 1, 2, 3, 4, 5, or 6, wherein the surface of the antifouling resin layer is embossed. 8. The non-woven fabric layer surface or the antifouling resin layer surface is colored and processed.
Or , wallpaper having a Steckigt sizing degree of 30 minutes or more. 9. A base sheet, a foam layer, a non-woven fabric layer, and then an antifouling resin layer are laminated in this order, and after the cross-linking component of the foam layer has penetrated into the non-woven fabric layer, heat treatment is performed to simultaneously perform foaming and cross-linking. The method for producing a wallpaper according to claim 1, wherein the Steckigt sizing degree is 30 minutes or more. 10. After the formation of the foam layer on the base sheet, when it is in the still wet state, claim 9, characterized in that the lamination by laminating a nonwoven fabric layer
A method for producing a wallpaper, wherein the described Steckigt sizing degree is 30 minutes or more. 11. The method of claim, wherein the performing simultaneous embossing and after heat treatment or heat treatment 9 or 10
A method for producing a wallpaper, wherein the described Steckigt sizing degree is 30 minutes or more. 12. The time for forming the antifouling resin layer on the surface of the non-woven fabric is before the heat treatment and after the heat treatment.
Or, it is carried out at any time selected from among those after embossing treatment, 10.
11. The method for producing a wallpaper as described in 11, wherein the Steckigt sizing degree is 30 minutes or more. 13. The coloring process according to claim 9, 10, 11 or 12, wherein the coloring process is carried out either before or after the antifouling resin layer is formed. A method for producing a wallpaper having a Steckigt size degree of 30 minutes or more.