JP2000220098A - Wallpaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain wallpaper capable of being readily applied, having good feeling and excellent durability, and capable of being designed so as to be diversified by using a desired material as a surface material. SOLUTION: This wallpaper is obtained by arranging a backing paper 3 on the back surface of a front surface layer 2, and integrally forming a synthetic resin layer 4 obtained by carrying out extrusion molding on the surface layer side 2 of the backing paper 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper stuck on a wall, and more particularly, to a wallpaper which is easy to apply, has good texture and excellent durability, and is made of a desired material as a surface material. The present invention relates to wallpapers that can be used for diversification.

[0002]

Background of the Invention Generally, wallpaper used for interior materials of a building is cut into a predetermined size in advance according to, for example, a construction wall, and then an adhesive is applied to a back surface, and the coated surface is folded inward. It is carried out by bringing it into the construction site and pasting it on the wall in order. As these wallpapers, those in which the decorative layer on the surface is made of a PVC resin are often used.However, wallpaper containing this PVC resin may generate harmful gas when incinerated when discarded. A wallpaper that does not use a PVC resin is desired.

[0003]

2. Description of the Related Art As a conventional non-PVC-based wallpaper, a backing layer and a surface layer are both made of a paper material, and these paper layers are adhered to each other with an adhesive.
As shown in FIG. 0, there is a decorative paper in which an ethylene-vinyl alcohol copolymer film is adhered to the surface of an decorative paper with an adhesive, and a backing paper is adhered to the back of the decorative paper with an adhesive.

[0004]

The conventional non-PVC-based wallpaper has the following problems. Because the paper wallpaper, which is entirely formed of a paper layer, has high air permeability,
Since the moisture of the adhesive applied to the back surface passes through the wallpaper and dries early, for example, within 60 minutes, the adhesive cannot be left for a long time in a state where the adhesive is applied. Further, in the case of the paper wallpaper, since the entire wallpaper is stretched or shrunk by drying due to the moisture of the adhesive applied to the back surface, it is not easy to cut the paper wallpaper in advance according to the size corresponding to the wall surface. Furthermore, since the water content of the adhesive permeates into the wallpaper, the embossed pattern formed on the wallpaper surface tends to return to the state before processing with the water content of the adhesive, and may become unclear. Moisture such as an adhesive that oozes from the base may cause stains on the wallpaper surface.

[0005] Since the paper layer and the resin layer are bonded to the backing paper with an adhesive, there is a possibility that the entirety of the wallpaper is stiffened by the dried adhesive and the suppleness is lost. When a non-PVC-based resin layer is formed on the surface, the adhesive can be prevented from drying, but the wallpaper surface is covered with the resin layer, and a paper layer or a nonwoven fabric layer is formed on the surface. And the wallpaper surface cannot be diversified. Since the respective layers are adhered to each other with an adhesive, the adhesive strength between the respective layers cannot be greatly increased, and peeling may occur between the layers, particularly between the resin film layer and the paper layer.

The present invention solves the above problems, is easy to construct, has good texture and excellent durability,
In addition, it is a technical object to provide wallpaper that can be diversified by using a desired material as a surface material.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention will be described with reference to FIGS. 1 and 2 showing an embodiment of the present invention. It is. That is, the present invention provides a wallpaper comprising a surface layer (2) and a backing paper (3) disposed on the back side thereof, wherein the polyolefin resin extruded on the surface layer (2) side of the backing paper (3). Characterized in that a synthetic resin layer (4) composed of

The surface layer may be formed of a fiber material such as paper or nonwoven fabric, or may be formed of a non-vinyl chloride resin material such as ethylene-vinyl alcohol copolymer.

The synthetic resin layer is preferably made of a relatively flexible and inexpensive low-density polyethylene resin, but may be made of another polyolefin resin such as a high-density polyethylene resin or a polypropylene resin. The thickness of the synthetic resin layer made of the polyolefin resin is preferably set to 15 μm or less from the viewpoint of flame retardancy required for wallpaper.

[0010]

The backing paper has a synthetic resin layer made of a polyolefin resin integrally formed on the surface layer side, so that the moisture of the adhesive applied to the backing paper is blocked by the synthetic resin layer, and the backing paper moves to the surface layer side. There is no permeation, and even if the surface layer is a fibrous material such as a paper layer or a non-woven fabric, such moisture does not evaporate from the surface layer side, and there is no fear that the surface layer absorbs this moisture and extends.

The synthetic resin layer is integrated with the backing paper or surface layer in an extruded molten state, so that it has a large adhesion to the backing paper and the like, and is formed into a uniform thin film of, for example, 15 μm or less. Therefore, the entire wallpaper is not stiff and a supple texture is well maintained.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway perspective view of wallpaper showing a first embodiment of the present invention.

As shown in FIG. 1, this wallpaper (1) is composed of a surface layer (2) made of paper material and a backing paper disposed on the back side thereof.
(3), and a synthetic resin layer (4) made of a low-density polyethylene resin is integrally formed between the backing paper (3) and the surface layer (2). That is, a synthetic resin made of a low-density polyethylene resin is extruded into a sheet shape, and the backing paper (3) and the surface layer (2) are brought into close contact with both surfaces of the synthetic resin layer (4) in a molten state, respectively, and are integrally formed. It is formed in. Therefore, although the synthetic resin layer (4) is a thin film having a uniform thickness, it is firmly integrated with both the backing paper (3) and the surface layer (2).

The wallpaper (1) is cut into a predetermined size in accordance with the wall surface to be applied, and an adhesive such as a water-based paste is applied to the back side, and the applied surface is folded inward, so-called accumulating. The wallpaper (1) with the predetermined quantity is carried to the construction site, and then spread on the application surface and is sequentially adhered to the predetermined wall surface. At this time, since the wallpaper does not expand and contract due to the moisture of the adhesive and maintains a good size at the time of cutting, it is easy to perform work such as sticking to a wall surface, and it is possible to finish well.

Although the surface layer is made of a paper material in the first embodiment, a non-vinyl chloride resin film such as an ethylene-vinyl alcohol copolymer may be used instead of the paper material. Further, the surface layer and the backing paper may each be composed of a plurality of layers.

FIG. 2 shows a second embodiment of the present invention, and is a cross-sectional view of a wallpaper having a surface layer composed of a resin layer and a paper layer. That is, in the second embodiment, the surface layer (2) is formed of a resin layer made of an ethylene-vinyl alcohol copolymer.
The two layers (5) and (6) are bonded to each other. The resin layer (5) is bonded to the paper layer (6) in advance to form a surface layer.
After forming (2), backing paper through synthetic resin layer (4)
The paper layer (6) may be integrated with the backing paper (3) via the synthetic resin layer (4), and then the resin layer (5) may be bonded with an adhesive. Is also good.

In the above embodiment, the case where the surface layer is made of a paper material or a resin material has been described. However, the wallpaper of the present invention can use another material such as a nonwoven fabric for the surface layer. Needless to say, another polyolefin resin may be used for the synthetic resin layer.

[0018]

Since the present invention is constructed and operates as described above, it has the following effects.

(A) The moisture of the adhesive applied to the back of the wallpaper is blocked by the synthetic resin layer and does not permeate into the surface layer, and the moisture does not evaporate from the surface layer. As a result, the adhesive is not dried even if left for a long time just by folding the application surface inward, and the time that can be applied after application can be greatly extended. In addition, since the synthetic resin layer does not stretch by absorbing moisture and can maintain the pre-cut dimensions well even when an adhesive is applied, it is necessary to adjust the dimensions and the like when sticking to the wall surface. In addition, construction on a wall surface can be performed easily and efficiently.

(B) Even if the surface layer is made of a fibrous material, the moisture of the adhesive does not penetrate, and there is no danger that the embossed pattern or the like formed on the surface layer will be restored by the moisture of the adhesive. In addition, it is possible to maintain a good pattern on the surface, and there is no possibility that the surface may be stained by moisture or the like oozing out from the base.

(C) Since the backing paper and the surface layer are strongly adhered to each other via the synthetic resin layer formed in a uniform thin film, there is no possibility of delamination and excellent durability. The wallpaper can be made flexible and have a good texture without the entire wallpaper being stiff.

(D) Since not only a non-vinyl chloride resin material but also a fibrous material such as paper or nonwoven fabric can be used for the surface layer, the surface of the wallpaper can be diversified.

(E) When the thickness of the synthetic resin layer is set to 15 μm or less, the amount of the polyolefin resin used for the wallpaper can be reduced, so that the flexibility of the wallpaper can be favorably exhibited and the difficulty required for the wallpaper is obtained. Flammability can be satisfied.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a wallpaper showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a wallpaper showing a second embodiment of the present invention.

[Explanation of symbols]

 1 ... wallpaper, 2 ... surface layer, 3 ... backing paper, 4 ... synthetic resin layer.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F100 AK03B AK06 AK68 AK68D AR00A BA03 BA04 BA07 BA10A BA10C DG01A DG10A DG10C EH17B GB08 JL00 JL00A JL02 4L055 AG59 AJ02 BE13 EA08 FA14 FA22 GA23

Claims (4)

[Claims] 1. A wallpaper comprising a surface layer (2) and a backing paper (3) disposed on the back side thereof, wherein the polyolefin resin is extrusion-molded on the surface layer (2) side of the backing paper (3). A wallpaper characterized by being integrally formed with a synthetic resin layer (4) consisting of: 2. The wallpaper according to claim 1, wherein said surface layer (2) is made of a non-PVC-based material. 3. The wallpaper according to claim 2, wherein at least a part of the surface layer (2) is made of a fiber material. 4. The wallpaper according to claim 1, wherein the thickness of the synthetic resin layer (4) is set to 15 μm or less.