JPH09236874A - Screen and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a screen having flame-retardant property and flexibility which is light in weight, not bulky, and hardly wrinkles when the screen is rolled up, by forming a diffusion film on the surface of a transparent synthetic resin film and flocking piles with an adhesive all over the back surface of the transparent synthetic resin film. SOLUTION: This screen is composed of a transparent synthetic resin film 1 such as polyester, a diffusion film 2 formed on the surface of the transparent synthetic resin film 1 by diffusion treatment, and a lots of soft piles 4 formed by flocking with adhesive all over the back surface of the transparent synthetic resin film 1. The screen (A) is produced by forming a diffusion film 2 on the surface of a transparent synthetic resin film 1 by diffusion treatment, subjecting the back surface of the transparent synthetic resin film 1 to well-known corona discharge treatment, then applying adhesive 3 thereon, and flocking piles 4 of a material having flexibility, flame-retardant property and sterilizing effect under an electric current while the adhesive 3 is not dried, and then subjecting the film to heat treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflective screen for movies, and more particularly to a wind-up reflective screen that is highly flame-retardant, lightweight, and scratch resistant.

[0002]

2. Description of the Related Art As this type of conventional roll-up type reflection type screen for movies, for example, a transparent polyester film, vinyl chloride film or the like is provided with a diffusion film diffused with calcite powder and a paint on the surface thereof. Further, there is used one in which a reinforcing film is laminated on the back surface of the film, and a reinforcing material is fitted in the edge portion.

[0003]

Generally, a roll-up screen for movies requires a certain degree of flexibility, stiffness, light weight and flame resistance. However, the above-mentioned conventional film has sufficient flexibility because it is laminated with a different type of reinforcing film with respect to the film made of polyester or vinyl chloride, lightweight, and the effect of flame resistance cannot be obtained.
When it is rolled up, it becomes bulky, and further, during repeated use, creases will inevitably occur on the screen surface, etc.
There is a problem that the screen function is impaired.

Therefore, an object of the present invention is to provide a screen which is flame-retardant and flexible, is not bulky when wound up, is lightweight, and is less likely to cause wrinkles, and a method for producing the screen.

[0005]

To achieve the above object, the screen of the present invention comprises a transparent synthetic resin film and a diffusion film provided on the surface of the transparent synthetic resin film by a diffusion treatment. It is characterized in that it is composed of a transparent synthetic resin film and a soft pile in which flocking is applied to the entire back surface through an adhesive.

In this case, it is preferable that the pile is formed of a material obtained by synthesizing nylon, carbon particles and ceramic silver.

Similarly, it is preferable that the pile is formed of a material obtained by synthesizing carbon resin and ceramic silver.

Similarly, the pile has a thickness of 1 to 3 denier,
It is preferably shaped to a length of 0.8 to 1.5 millimeters.

Further, the method of manufacturing the screen of the present invention is
Diffusion treatment is applied to the surface of transparent synthetic resin film to provide a diffusion film, and the adhesive is applied after corona discharge treatment on the back surface of transparent synthetic resin film. It is characterized in that a pile made of a soft, flame-retardant and bactericidal material is electrophoresed and then heat-treated.

In this case, the pile is 96.7% by weight of nylon, 3% by weight of carbon particles, 0.3% by weight of ceramic silver.
It is preferable to be composed of a material obtained by synthesizing

Similarly, the pile is preferably made of a material in which 99.7% by weight of carbon resin and 0.3% by weight of ceramic silver are synthesized.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG. 1. The roll-up reflective screen A of the present invention comprises a synthetic resin film 1 made of transparent polyester and the like, and It is composed of a diffusive film 2 provided by diffusing treatment on the surface of a synthetic resin film 1 and a large number of soft piles in which the entire back surface of the transparent synthetic resin film 1 is flocked via an adhesive 3. .

In this case, as one example, the pile has 96.7 g of nylon, 3 g of carbon particles, and 0.
It is preferably molded with a material obtained by synthesizing 3 g.

Similarly, as another embodiment, it is preferable that the pile is made of a material obtained by synthesizing 99.7 g of carbon resin and 0.3 g of ceramic silver.

Similarly, in the above-mentioned two embodiments, it is preferable that the vial is formed to have a thickness of 1 to 3 denier and a length of 0.8 to 1.5 mm.

The above screen is obtained by the following manufacturing method. That is, a diffusion film is provided on the surface of a transparent synthetic resin film by diffusion treatment, and a known corona discharge treatment is applied to the back surface of the transparent synthetic resin film, and then an adhesive is applied. Electrostatic flocking made of a soft, flame-retardant and sterilizable material to the adhesive, and then
It is a heat treatment.

In this case, as a synthetic resin film, it was experimentally proved that a transparent polyester film having a thickness of 80 to 200 μm was suitable for the screen. As the adhesive, an acrylic adhesive,
For example, Polynal (trademark) manufactured by Ohashi Chemical Industry Co., Ltd.
It is preferred to use

Further, the pile has a thickness of 1 to 3 denier and a length of 0.8 to 1.5 mm, and contains 96.7% by weight of nylon, 3% by weight of carbon particles, and 0.3% by weight of ceramic silver. From the experiments, it is clear that the synthetic material is excellent in the softness, flame retardancy and bactericidal property of the screen.

Similarly, 99.7% by weight of carbon resin, which is a pile of 1 to 3 denier and 0.8 to 1.5 mm in length, and which is a mixture of carbon and synthetic resin, and 0.3% by weight of ceramic silver. It was empirically clear that the synthesized material was suitable for a screen as described above. Further, the voltage of the applied hair is preferably 30 to 80 kilovolts, and the temperature and time of the heat treatment are 60 to 8
It was experimentally clear that 10 to 20 minutes at 0 ° C. is preferable.

[0020]

Example 1 A surface of a transparent polyester film having a thickness of 100 μm was subjected to a known diffusion treatment with calcite powder and a paint to form a diffusion film, and a back surface of the polyester film was subjected to a known corona discharge treatment and then acrylic. The adhesive has a thickness of 2 denier and a length of 1 millimeter, and is 96.7 g of nylon, 3 g of carbon particles, 0.3 g of ceramic silver while the adhesive is not dried.
A screen made by subjecting a pile composed of the above-mentioned synthesized material to electric hair implantation under 50 kilovolts and then heat-treating at 70 ° C. for 15 minutes.

[0021]

Example 2 A transparent polyester film having a thickness of 100 μm was subjected to a diffusion treatment to form a diffusion film, and the back surface of the polyester film was subjected to a known corona discharge treatment and then an acrylic adhesive was applied thereto. While the adhesive was not dried, the adhesive had a thickness of 2 denier, a length of 1 mm, a carbon resin of 99.7 g, and a ceramic silver of 0.
A pile composed of 3 g of the synthesized material was electro-implanted with hair under 50 kilovolts, and then heat-treated at 70 ° C. for 15 minutes to obtain a screen.

Materials as shown in Examples 1 and 2 above,
When a screen is manufactured with the blending ratio of materials, the applied voltage, the temperature of heat treatment, and the time, flame retardancy, heat dissipation effect,
It was clear experimentally that it was excellent in flexibility, bactericidal property, and bulkiness when wound.

[0023]

According to the present invention, the following effects can be obtained.

According to the inventions of claims 1 and 5, since the soft piles are planted on the back surface of the film, the screen itself is highly flexible and lightweight. Further, since the surface area of the pile is large, the heat radiation effect is high, and the temperature rise of the screen itself is prevented. Furthermore, the pile doubles as a reinforcing material and improves the durability of the screen.

Similarly, by piling the piles on the back surface of the film, the flexibility is improved and wrinkles are prevented from occurring on the surface of the screen when wound up.

According to the inventions of claims 2, 3, 6, and 7,
Since the pile contains carbon, it is highly flame-retardant.
Since it contains ceramic silver, it is highly bactericidal, so
Prevents the generation of mold, the screen is hygienic, the treatment of mold can be omitted, and the durability can be improved.

According to the invention of claim 4, since the pile is thin and short, the thickness of the screen itself is small, and the pile is flexible. Therefore, when the screen is rolled up, it is smoothly rolled up and when it is rolled up. The bulkiness of the can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a screen according to an embodiment of the present invention.

[Explanation of symbols]

 1 Synthetic resin film 2 Diffusion film 3 Adhesive 4 Pile

Claims (7)

[Claims] 1. A transparent synthetic resin film, a diffusion film formed by diffusing the surface of the transparent synthetic resin film, and a soft synthetic resin film having flocked to the entire back surface with an adhesive agent. A screen composed of piles. 2. The screen according to claim 1, wherein the pile is formed of a material obtained by synthesizing nylon, carbon particles and ceramic silver. 3. The screen according to claim 1, wherein the pile is formed of a material obtained by synthesizing carbon resin and ceramic silver. 4. The screen according to claim 1, wherein the veil is molded to have a thickness of 1 to 3 denier and a length of 0.8 to 1.5 mm. 5. A transparent synthetic resin film is subjected to a diffusion treatment on the surface thereof to form a diffusion film, and the back surface of the transparent synthetic resin film is subjected to corona discharge treatment and then coated with an adhesive. A method for producing a screen, wherein a pile of a soft, flame-retardant and bactericidal material is electrostatically flocked to the adhesive, and then heat treatment is performed. 6. The method for producing a screen according to claim 5, wherein the pile is made of a material in which 96.7% by weight of nylon, 3% by weight of carbon particles and 0.3% by weight of ceramic silver are synthesized. 7. The pile comprises 99.7% by weight of carbon resin,
The method for manufacturing a screen according to claim 5, wherein the screen is made of a material in which 0.3% by weight of ceramic silver is synthesized.