JPS63149145A - Wall paper having inorganic feeling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to wallpaper, particularly wallpaper with an inorganic texture.

<Conventional technology> Traditionally, when it comes to wallpaper, vinyl chloride resin-processed products have been the mainstream, but in recent years, the coldness of plastic has become a topic of discussion, and products that are different from vinyl chloride wallpaper have become popular. Sensory wallpapers are commercially available, such as wallpapers made from Western paper made from softwood pulp as the main raw material, and wallpapers whose surface is textured using paint mixed with coarse-grained inorganic substances.

<Problems to be solved by the invention> The above-mentioned Western paper wallpaper has low tensile strength and abrasion resistance when wet, and tends to tear during construction or use. It had the disadvantage that it was difficult to maintain its original shape even with weak external pressure. Furthermore, when using the above-mentioned paints containing inorganic substances, it became impossible to print on rough surfaces using normal methods, which greatly hindered the development of applications for imparting design features. Since the paint layer is very susceptible to cracking, the cracks in the projecting corners of buildings result in unsightly and poor quality workmanship, which has the drawback of limiting the range of application.

An object of the present invention is to provide a wallpaper that can eliminate the above-mentioned drawbacks and has an inorganic texture.

<Means for Solving the Problems> In the present invention, a three-layer borrowed sheet material consisting of a base material, a vinyl chloride resin layer, and a finely woven fabric is embossed to form an uneven pattern on the surface. At the same time, during embossing, assimilated protrusions of vinyl chloride resin that is extruded and solidified from the fine holes of the fabric part are formed on the surface of the fabric part that corresponds to the convex part of the uneven pattern, and such solidified protrusions While the surface of the fabric has a rough, inorganic feel to it, the exposed fabric also creates a natural matte feel and warmth.

<Example> In the cross-sectional view of the wallpaper according to the present invention shown in the figure, 1 is a wallpaper flame-retardant backing paper with a thickness of, for example, 0.12 mm, asbeth 1 to paper 2 is a base material such as synthetic paper, and 2 is a coating method. ,
It is a vinyl chloride resin layer formed on the base material 1 by a calendering method, a laminating method, etc., and it does not matter whether it is foamed or non-foamed.

3 is a fine cloth covering the upper surface of the vinyl chloride resin layer 2.

This fabric 3 guarantees strength as wallpaper and is suitable for printing, and the printing on the surface, combined with the uneven pattern created by embossing, gives it an excellent product effect. In the invention, the softened vinyl chloride resin is extruded through the fine mesh of the fabric 3 portion corresponding to the convex portions 4 of the uneven pattern by embossing, and the assimilated protrusion 5 is formed by the vinyl chloride resin. Orukara,
Tensile strength averaged vertically and horizontally to withstand the large pressures applied during embossing.

Must have tear strength. If there is a direction or a location where the strength is weak, a tear will occur at that portion and the softened vinyl chloride resin will escape through the tear. In this case, the pressure necessary to extrude the resin cannot be obtained, and the escaped resin cannot solidify quickly, resulting in a product that is not much different from conventional vinyl chloride wallpaper.

Further, it is important that the size of the stitches of the fabric 3 and its human appearance be uniform, in order for the assimilated protrusions 5 to produce a rough, inorganic-like feel. Combining many experimental results, the average fine pore diameter is preferably in the range of 85 to 110μ, and if the average pore diameter is larger than this,
If the number of solidified protrusions 5 increases too much, the wallpaper will become similar to vinyl chloride wallpaper. On the other hand, if the average pore diameter is smaller than this, extrusion becomes extremely difficult and the assimilated protrusions 5 no longer protrude, resulting in a structure that is simply a stack of fabrics 3.

The fabric 3 can be either a woven fabric or a non-woven fabric, but the latter can be said to be more practical in terms of economy and the like. When making a nonwoven fabric, there is no particular restriction on the type of fibers, and as long as the mixing ratio is 50% or less, there will be no problem in terms of water resistance even if pulp is included. If necessary, a fluorine-based water repellent may be applied to the surface of the nonwoven fabric. Regarding the fiber length, in order to meet the above-mentioned strength requirements, it is necessary to use relatively long fibers of 15 to 30 mm. Generally, nonwoven fabrics using such long fibers are obtained by a dry process, but nonwoven fabrics produced by the dry process have too large an unevenness in mesh size and are not suitable for the nonwoven fabric used in this invention. Not. On the other hand, nonwoven fabrics obtained by the wet papermaking method have a sufficiently satisfactory mesh size with relatively little variation.

Therefore, when using a nonwoven fabric, the average fine pore size should be in the range of 85 to 110μ, and the fiber length should be 15mm.
It is preferable to use a nonwoven fabric made by the above wet papermaking method. When looking for such a product from commercially available products, Sunmore D type (Sanwa Paper Products) is suitable.

−〇 − <Effects of the Invention> The wallpaper according to the present invention can be obtained relatively easily by applying the known vinyl chloride wallpaper manufacturing technology, and the printing and embossed shapes on the surface make it different from conventional vinyl chloride wallpaper. Although it is possible to have a similar design effect, since the solidified protrusions 5 are formed on the surface of the convex portion 4, the roughness is so rough that one might mistake it for an inorganic material. Even if this wallpaper is bent, the assimilated protrusions 5 will not fall off, so even if this wallpaper is used to construct a projecting corner of a building, a superior workmanship can be obtained. In addition, the portion of the fabric 3 where the solidified protrusions 5 are not formed can be effectively expressed to give a natural matte feel and warmth, which is different from that of vinyl chloride resin.

[Brief explanation of the drawing]

The figure is a sectional view of the wallpaper according to the invention. DESCRIPTION OF SYMBOLS 1... Base material, 2... Vinyl chloride resin layer, 3... Fine fabric, 4... Convex part, 5... Assimilated protrusion body.

Claims (1)

[Claims] 1. Embossing is applied to a sheet-like material having a three-layer structure in which the upper surface of a vinyl chloride resin layer (2) formed on a base material (1) is covered with a fine cloth (3). In addition to forming an uneven pattern on the surface, fabric (3) corresponding to the convex portion (4) of the uneven pattern is formed.
) during the embossing process, the surface of the fabric (3)
Wallpaper with an inorganic texture formed by solidified protrusions (5) of vinyl chloride resin that are extruded and solidified through the fine grains of the parts. 2. The wallpaper with an inorganic texture according to claim 1, wherein the fabric (3) is a nonwoven fabric produced by a wet papermaking method, with a fiber length of 15 mm or more and an average fine pore diameter in the range of 85 to 110 μm.