JP2611560B2 - Wallpaper having projector screen function and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper having a function as a projector screen and a method for producing the same.

[0002]

2. Description of the Related Art Overhead projectors (OH)
P) is widely used and widely used in schools, companies, lectures, and the like, and a screen made of white PVC is conventionally used as a projection screen. In recent years, a projection type television system using a liquid crystal panel or the like has appeared on the market. These OHPs and projection televisions always use a screen, and if there is no screen, images and characters can be seen even on a white wall, but the suitability of the wall material and the screen are fundamentally in the first place. Due to the difference, there is a problem that the image is too dark to be clearly seen. In particular, the projection type television cannot increase the brightness of the light source, and in order to obtain a bright image, there is an increasing demand for a bright screen having better reflection characteristics than before.

[0003] However, using a screen requires a space for installing it, and it takes time to prepare it in advance. In addition, there is a limit to the size of the screen in consideration of mobile installation. Therefore, there is a demand for a means that can immediately respond to the use of OHP or the like in a conference or the like even if a screen is not prepared.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a projector screen capable of instantly responding to a demand for using an OHP or the like without preparing a screen. Another object of the present invention is to provide a wallpaper having a function as a function and a method for manufacturing the same.

[0005]

In order to achieve the above object, the wallpaper of the present invention has at least one layer of a foamed resin layer on a colored substrate, and at least one layer in which a pearl pigment or the like is mixed thereon. Having a thermoplastic resin layer, transparent beads are arranged all over the surface of the uppermost layer of the thermoplastic resin layer, or the surface of the uppermost layer of the thermoplastic resin layer is embossed with a grain pattern. It is characterized by the following.

[0006] Further, according to the method for producing wallpaper of the present invention, at least one layer of a resin layer containing a heating foaming agent is coated on a colored base material, and at least one layer of a pearl pigment or the like is mixed thereon. After laminating a resin layer, further arranging transparent beads on the surface of the uppermost layer of the thermoplastic resin layer and pressing lightly from above if necessary, heating the whole to cause the foaming agent-containing resin layer to foam. It is characterized by the following.

Further, according to the method for producing wallpaper of the present invention, a resin layer containing at least one layer of a heating foaming agent is coated on a colored substrate, and at least one layer of a pearl pigment or the like is mixed on the resin layer. After laminating the resin layer, the whole is heated to foam the foaming agent-containing resin layer, and further, a grained emboss is applied to the surface of the uppermost layer.

Hereinafter, the present invention will be described in detail. FIG. 1 is a sectional view showing a configuration example of the wallpaper of the present invention. According to this configuration example,
A foamed resin layer 2, a first thermoplastic resin layer 3a, and a second thermoplastic resin layer 3b are laminated in this order on the colored base material 1, and the surface of the second thermoplastic resin layer 3b, which is the uppermost layer. The transparent beads 4 are arranged on one side.

The colored substrate 1 is preferably a colored backing paper or a backing paper on which solid printing is applied. By performing coloring or solid printing, irregular reflection of light can be reduced, and the effect as a projector screen can be enhanced. In addition, the color of the wallpaper is not too light, and the color is calm. Although any color may be used for solid printing, black solid is most preferable. In addition, the backing paper has the property of peeling between layers of the backing paper when peeling wallpaper (peelable property), and therefore, hassle during replacement (putting to eliminate unevenness or cleaning places that cannot be stuck properly). Etc.).

The foamed resin layer 2 is formed by containing a foaming agent in a paste of a thermoplastic resin such as a vinyl chloride resin and applying the foaming agent on the colored base material 1 to cause foaming. By providing the resin layer 2, unevenness can be covered without widening the base of the wall. As a foaming agent, if a normal organic foam is used, gas may remain between the layers, the sheet may bulge, or the cells may be collapsed by reheating, etc., and therefore, a heating type capsule foaming agent is used in the present invention. Is desirable. The amount of the capsule foaming agent used is about 2 to 20 parts by weight based on the paste resin. Usually, one layer of the foamed resin layer 2 is sufficient, but two or more layers may be provided depending on the thickness.

The thermoplastic resin layer 3 contains a pearl pigment or the like in order to have a projector screen function in a thermoplastic resin such as a vinyl chloride resin. In the configuration shown in FIG. Although the laminated structure is composed of the layers (3a and 3b), the laminated structure may be a single layer or a multilayer structure of three or more layers. As the pearl pigment used,
This type of mica is coated with titanium dioxide, with a titanium coverage of 28% and a particle size of 5-60 μm (average particle size 3
0 μm) is preferred from the viewpoint of coating suitability. The pearl pigment is usually used in an amount of about 30 parts by weight or less based on the resin.

The thermoplastic resin layer 3 can also be formed into a colored paste layer by mixing an ink of a desired color (usually about 3 parts by weight or less with respect to the resin) in a transparent paste. For example, in the configuration shown in FIG. 1, the first layer 3a can be a colored paste layer, and the second layer 3b can be a pearl pigment-containing layer.

In forming the thermoplastic resin layer 3 and the foamed resin layer 2, known coating means can be used. Further, the thermoplastic resin layer 3 may be formed as a film in addition to being formed as a paste layer.

The uppermost layer of the thermoplastic resin layer 3 (3 in FIG. 1)
An effective projector screen function is provided by arranging the transparent beads 4 all over the surface of b). That is, the image is sharply viewed from a wide range of angles so that the image is clear from the direction in which light converges, but does not become difficult to view when the viewing angle is changed. As a method of applying the transparent beads, for example, an adhesive (a paste may be used) for bonding glass is applied, and the transparent beads can be wiped in the same manner as in a known sandpaper manufacturing method. As the transparent beads, glass beads are used, and in order to have an effective projector screen function, the refractive index of the glass beads is preferably 1.0 to 2.5, and particularly preferably about 1.9. The particle size is preferably 100 μm or less.

Instead of arranging the transparent beads on the surface of the uppermost layer of the thermoplastic resin layer 3, the projector screen function can be provided by embossing. In this case, the screen is changed from a transmission type to a reflection type screen. By embossing, the reflection of light can be dispersed and glare can be eliminated. The embossing in this case is preferably a grain pattern that does not cause moire. Compared to when using transparent beads,
It is advantageous for price, dirt prevention and safety.

Further, by adding a fungicide during the blending of the wallpaper, the fungicide performance can be added. Biosite (trade name, manufactured by Taisho Co., Ltd.) can be used as a fungicide. Further, by applying a top coat, contamination resistance performance can be added. The material of the top coat is a self-crosslinking type acrylic resin or the like. The added value of the wallpaper as a product can be enhanced by such antifungal performance and antifouling performance.

[0017]

The present invention will be described more specifically below with reference to examples.

On a backing paper (basis weight 75 g / m ² ), black ink (VD ink used for normal wallpaper, manufactured by Toyo Ink Mfg. Co., Ltd., vis ^# 3 Zahn cup 16 seconds ± 1) with a solid line of 200 lines-42 μm
Seconds) was solid printed. On top of that, paste A below has a thickness of about 0.
After applying and gelling at 15 m / m, the following paste B was laminated and gelled at a thickness of about 0.08 m / m. Furthermore, the following paste C was laminated thereon at a thickness of about 0.04 m / m, and the whole was heated and foamed. Then, an adhesive for bonding glass was applied to the surface, and glass beads having a refractive index of 1.9 and a particle diameter of 100 μm were applied. To obtain the wallpaper of the present invention. The obtained wallpaper had not only the suitability required for the wallpaper, but also an excellent projector screen function in which images could be clearly seen from a wide range of angles.

The composition of each paste layer is shown below. In addition,
Parts represent parts by weight.

Paste A Vinyl chloride resin 100 parts Dioctyl phthalate (DOP) 55 parts Stabilizer (zinc-tin) 2 parts Calcium carbonate 100 parts Capsule foaming agent 7 parts Titanium 10 parts Diluent (mineral spirit (trade name)) Paste B Vinyl chloride resin 100 parts DOP 50 parts Stabilizer (described above) 2 parts Blue ink 0.1 part Diluent (described above) Appropriate amount Paste C Vinyl chloride resin 100 parts DOP 50 parts Stabilizer (described above) 2 parts Pearl pigment 20 Part Diluent (as described above)

[0021]

As described above in detail, according to the present invention, it is possible to obtain wallpaper having not only suitability as wallpaper but also excellent projector screen function.
When using an HP or the like, an image can be immediately displayed on a wall material on the spot without preparing a screen, which is simple and convenient and has a great effect.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration example of a wallpaper according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Colored base material 2 Foam resin layer 3 Thermoplastic resin layer 4 Transparent beads

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B32B 27/20 B32B 27/20 Z 31/00 7148-4F 31/00 D21H 19/66 H04N 5 / 74 C 19/80 D21H 5/02 27/02 1/02 27/30 1/10 701 H04N 5/74 703

Claims (4)

(57) [Claims] 1. A colored base material having at least one foamed resin layer, at least one thermoplastic resin layer containing a pearl pigment or the like mixed thereon, and an uppermost layer of the thermoplastic resin layer. A wallpaper having a projector screen function, wherein transparent beads are arranged on one surface. 2. A colored base material having at least one foamed resin layer, at least one thermoplastic resin layer containing a pearl pigment or the like mixed thereon, and an uppermost layer of the thermoplastic resin layer. A wallpaper having a projector screen function, characterized in that the surface is embossed with a grain pattern. 3. At least one layer of a resin layer containing a heating foaming agent is coated on a colored base material, and at least one layer of a thermoplastic resin layer mixed with a pearl pigment or the like is laminated thereon.
Further, a transparent screen is arranged on the surface of the uppermost layer of the thermoplastic resin layer, and if necessary, lightly pressed from above, and then the whole is heated to foam the foaming agent-containing resin layer. A method for producing a functional wallpaper. 4. At least one layer of a resin layer containing a heating foaming agent is coated on a colored base material, and at least one layer of a thermoplastic resin layer containing a pearl pigment or the like is laminated thereon. A method for producing wallpaper having a projector screen function, which comprises heating the foaming agent-containing resin layer to foam it, and further embossing the surface of the uppermost layer with a grain pattern.