JP2691642B2 - 3D daylight screen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a daylight screen, and more specifically, it cuts an appropriate portion of a screen film surface formed by coating a screen base material with a film surface forming composition to an appropriate size, and absorbs the light. The present invention relates to a method for manufacturing a daylight screen having a three-dimensional effect, characterized by sticking to the back surface.

[0002]

2. Description of the Related Art Conventionally, a daylight screen has been widely used as a screen which is easy to see even in a bright place by fixing glass beads and other various reflecting materials on various substrates. In order to make the room bright and easy to see, the reflection property of the reflective material such as glass beads is used, but some of these reflections always cause specular reflection, which may be dazzling and completely invisible. There is a drawback that the image cannot be seen at all if the angle is deviated.

For this reason, the present inventor et al.
No. 90337, by providing a daylight screen having a wide viewing angle in which calcite or silicon oxide is included as a diffusing material in the film surface forming composition in addition to these reflecting materials, the above drawbacks of the prior art are improved. However, it is still not enough in terms of the stereoscopic effect of the image, and it is necessary to develop a daylight screen that is easier to see.

[0004]

Thus, by using the reflecting material and the diffusing material together in the film surface forming composition, it is possible to improve the drawbacks such as partial specular reflection due to the use of only the reflecting material. However, since the entire daylight screen surface is formed with a uniform film surface forming composition, on the contrary, it causes a general decrease in contrast on the screen surface, which becomes a factor to lose the stereoscopic effect of the screen.

Therefore, the contrast of the screen is improved,
It is an object of the present invention to provide a daylight screen that is easier to see by obtaining an image having a stereoscopic effect.

[0006]

The above objects can be achieved by the constitution of the present invention described below.

According to the present invention, after the film surface forming composition is applied on the screen base material of a daylight screen, the screen film surface thus formed is cut into an appropriate size at an appropriate size, and a light absorbing material is applied thereto. It is composed by pasting.

As the screen base material, base materials conventionally used for daylight screens can be used, but iron plate, aluminum plate, paper or resin cloth or sheet of polyester resin, vinyl chloride resin, etc. is suitable.

As the film surface forming composition, it is possible to use a film forming resin which has been conventionally used, such as an epoxy resin or an acrylic resin, and a reflecting material such as glass beads or other necessary additives. However, Japanese Patent Application No. 1-1 using a diffuser such as calcite or silicon oxide in addition to the reflector.
Further suitable are those disclosed in 90337.

Appropriate portions of the screen film surface formed after applying the film surface forming composition are cut into a suitable size by a method such as commonly used punching or other mechanical cutting and etching. Chemical methods using appropriate agents such as can be used.

A light absorbing material is applied to the cutout portion of the screen film surface. As the light-absorbing material, a light-absorbing film such as black vinyl chloride resin is attached, or an acrylic black matte paint or Polynal No. A light-absorbing film forming material such as 500 Matt Black (manufactured by Ohashi Chemical Co., Ltd.) is applied.

Although the size and number of cuts on the screen film surface vary depending on the size of the screen and the like, it is desirable to make the distribution of cut parts uniform when viewed from the entire screen film.

The ratio of the cutout portion to the entire screen varies depending on the composition of the film surface composition used and the like, but is preferably 30 to 60%. If the density is higher than this range, the contrast will increase but the sharpness of the screen will be lost.
If the density is too small, the effect of improving the contrast becomes small.

[0014]

Next, the present invention will be described more specifically with reference to examples.

Embodiment 1 1. Raw materials used (1) Base material; Polyester cloth (2) Adhesive; Polynal No. 800 Clear (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba Glass) (4) Calcite; 40μ (Ohashi Chemical) 2. The adhesive of (2) is applied to the base fabric of step (1) with a roll coater and glass beads are immediately sprayed with a hopper. Then, after pressing with a rubber roller, excess glass beads were sieved off with a vibrator. Completely eliminated
Then, the calcite of (4) is sprinkled on the hopper and pressed by a rubber roller. Since calcite particles are smaller than glass beads, they enter between glass beads. After this, use a vibrator to remove excess calcite and remove it at 80 ℃ x 2
A daylight screen is obtained by forced drying in a 0 minute hot air drying oven. After that, punch holes with a diameter of 5 mm so that they are evenly distributed on 20 to 30% of the film surface.
Then, a black matte film made of vinyl chloride resin was attached to the back surface of the film to obtain a daylight screen having a three-dimensional effect.

Embodiment 2 1. Raw materials used (1) Base material; Vinyl chloride resin sheet (RIKEN vinyl) (2) Adhesive; Polynal No. 800 Clear (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba Glass) (4) Calcite; 40μ (Ohashi Chemical) 2. Process After obtaining a daylight screen by the same manufacturing process as in Example 1, a punching machine was used to make holes with a diameter of 5 mm in the screen film surface so as to be 30 to 60% of the whole, and there was vinyl chloride. Absorption film made of resin
Was pasted to obtain a daylight screen with a three-dimensional effect.

Embodiment 3 1. Raw materials used (1) Substrate: Aluminum plate (thickness 3 mm of general commercial product degreased) (2) Adhesive: Fastest No. 140 (N) White (manufactured by Ohashi Chemical) (3) Glass beads; 150 mesh (manufactured by Toshiba Glass) (4) Calcite; 40μ (manufactured by Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 1.

Example 4 1. Raw materials used (1) Substrate; Iron plate (commercial bond steel plate having a thickness of 0.3 mm) (2) Adhesive; Fastite No. 140 (N) White (manufactured by Ohashi Chemical) (3) Glass beads; 150 mesh (manufactured by Toshiba Glass) (4) Calcite; 40μ (manufactured by Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 2.

Example 5 1. Raw materials (1) Base material; Paper (2) Adhesive; Acrylic (Sony Chemical) (3) Glass beads; 150 mesh (Toshiba glass) (4) Calcite; 40μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 1.

Example 6 1. Raw materials used (1) Base material; Polyester cloth (2) Adhesive; Polynal No. 800 Clear (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba glass) (4) Silicon oxide; 30μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 2.

Example 7 1. Raw materials used (1) Base material; Vinyl chloride resin sheet (made by Riken Vinyl) (2) Adhesive; Polynal No. 800 Clear (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba glass) (4) Silicon oxide; 30μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 1.

Embodiment 8 1. Raw materials used (1) Substrate: Aluminum plate (thickness 3 mm of general commercial product degreased) (2) Adhesive: Fastest No. 140 (N) White (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba glass) (4) Silicon oxide; 30μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 2.

Example 9 1. Raw materials used (1) Base material; Iron plate (2) Adhesive; Fastite No. 140 (N) White (Ohashi Chemical) (3) Glass beads; 150 mesh (Toshiba Glass) (4) Silicon oxide; 30μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 1.

Example 10 1. Raw materials (1) Substrate; Paper (2) Adhesive; Acrylic (Sony Chemical) (3) Glass beads; 150 mesh (4) Silicon oxide; 30μ (Ohashi Chemical) 2. Process A daylight screen of the present invention was obtained by the same manufacturing process as in Example 2.

Claims (1)

(57) [Claims] 1. A three-dimensional effect characterized by cutting an appropriate portion of a screen film surface formed by applying a film surface forming composition to a screen base material in an appropriate size and attaching a light absorbing material from the back surface. Daylight screen manufacturing method.