JP2002209724A - Curtain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel curtain having functions for eliminating smells in a space and decomposing smells and soils adhered on an outer surface. SOLUTION: By light irradiation, electrons and positive holes are excited, and react with oxygen and water to generate active oxygen and OH radicals. Thereby, a photocatalyst decomposes organic substances. A photocatalyst layer composed of the photocatalyst is formed on the outer surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain for indoor use in a house or car, which has a function of eliminating odors in the air and a function of decomposing odors and dirt attached to the outer surface.

[0002]

2. Description of the Related Art Conventionally, curtains have been apt to be stained indoors due to adhesion of cigarette tar and the like. There was no other way to remove this stain than to wash the curtain.
In addition, the smoke and smell of tobacco in the room was exhausted by ventilation equipment, and an ozone generator was installed to forcibly deodorize.

[0003]

There is currently no mechanical device for automatically cleaning the tobacco stains attached to the curtain.

[0004] The above-mentioned ventilation equipment has the following disadvantages. Since the air in the room is replaced, the efficiency of cooling and heating deteriorates. There is electricity to operate the ventilation system. Maintenance costs are high due to the labor and cost of cleaning the filter. The running noise of the equipment is noisy.

[0005] Similarly, the ozone generator has the following disadvantages. '' Ozone concentration is difficult to control and high concentrations can be harmful to health. '' There is electricity to operate the ozone generator. '' The ozone generator is a consumable item, and the time and maintenance cost for regular replacement are relatively high. 'Noisy running equipment.

An object of the present invention is to provide a novel curtain which eliminates these drawbacks.

[0007]

In order to achieve the above-mentioned object, a curtain according to the present invention is characterized in that, when light is irradiated on its outer surface, electrons and holes are excited and react with oxygen or moisture to react with active oxygen. And a photocatalyst layer made of a photocatalyst that generates organic and OH radicals and decomposes organic substances.

[0008]

[Function] When the photocatalyst layer formed on the outer surface is irradiated with ultraviolet light included in natural light or fluorescent lamp light, electrons and holes are excited in the photocatalyst layer, and react with oxygen and moisture contained in indoor air to activate oxygen. And OH radicals are generated. Due to the strong oxidizing power of the active oxygen and OH radicals, dust or dirt adhering to or adhering to the outer surface of the curtain,
Organic substances that become sources of foul odors and dirt, such as tobacco tar, are broken down by breaking molecular bonds, and bacteria floating in the air are also killed.

[0009]

In the embodiment of the present invention shown in the figure, a neutral inorganic sol solution (pH 7.0, transparent solution) containing a photocatalyst of titanium dioxide having an anatase type crystal structure is filled in a spray device. Using a spray device, the inorganic sol solution is spray-applied on both outer surfaces of the front and back surfaces of the curtain body 2 so as not to drip.
The photocatalyst layer 1 is provided on both front and back outer surfaces.

At this time, the spray device used for application is
It is preferable to use a device in which the particles of the jetting solution are fine, and a beautiful finished product with a high gloss and texture can be obtained by applying the solution in two or three coats.

When a photocatalyst such as titanium dioxide having an anatase crystal structure is irradiated with light, electrons and holes are excited, and react with oxygen (O2) or moisture (H2O) in the air to activate active oxygen. (O2-) and OH radicals (OH) are generated to exhibit the function of decomposing organic substances.

The photocatalyst layer 1 made of a photocatalyst such as titanium dioxide having an anatase type crystal structure is coated by a coating method,
The photocatalyst layer 1 can be formed on both front and back outer surfaces of the curtain body 2 by an appropriate method such as a coating method, an impregnation method, an ion exchange method, a CVD method, or a suitable method such as a sol-gel method or an ICB method. As a material to be used, various photocatalysts such as a composite material containing titanium dioxide and a composite oxide in which photocatalytically active species are highly dispersed may be used as long as the photocatalyst performs the same photocatalysis.

When natural light or fluorescent light shines on the photocatalyst layer 1, it reacts with oxygen (O2) or moisture (H2O) to form active oxygen (O2-) or OH radical (OH), which reacts with an organic substance to form carbonic acid. It becomes gas and water. That is, it reacts with oxygen (O 2) or moisture (H 2 O) contained in the indoor air that comes into contact with the surface of the photocatalyst layer 1 by natural convection or the like, to form active oxygen (O 2 −) or OH radical (OH). Due to the strong oxidizing power of the active oxygen (O2-) and the OH radical (OH), the molecular bonds of malodorous substances such as tobacco tar, organic substances such as dust, garbage and bacteria floating in the indoor air are cut off. Decomposed.

The photocatalyst such as titanium dioxide has a self-cleaning action, and decomposes organic substances that are to adhere to the surface of the photocatalyst layer 1. Cleanliness can be maintained without accumulation of dirt and the like. Further, the action lasts semipermanently because of the catalytic reaction. Moreover, if there is light including an ultraviolet region such as natural light or fluorescent lamp light for illumination, a catalytic effect can be obtained, so that there is no need to provide any special equipment and no special power consumption.

[0015]

The above-described curtain with a photocatalyst layer of the present invention has the following effects. That is, a, since active oxygen and OH radicals formed on the surface of the photocatalyst layer can decompose malodorous components such as cigarette tar,
The generation of offensive odor in the room can be prevented, and the interior room does not feel uncomfortable. In addition, the effect increases in proportion to the number of curtains to be installed. b. Dust, dust, and the like can be decomposed by active oxygen and OH radicals formed on the surface of the photocatalyst layer, so that indoor dirt can be prevented. c. Active oxygen and OH radicals formed on the surface of the photocatalyst layer can decompose and sterilize bacteria, which can prevent the transmission of disease between indoors, keep the room healthy and hygienic, and keep indoors safe and healthy. You can live life. d. The surface of the curtain body is kept clean by the self-cleaning effect of the photocatalyst layer, so that the work of removing and wiping dust can be omitted. e. The catalytic reaction has a high resistance to acids and ultraviolet rays and is semi-permanent and has a great economic effect. f. The catalytic effect of the photocatalyst layer can be obtained if there is light including an ultraviolet region such as natural light or fluorescent light, and there is no need to provide special equipment such as ventilation equipment and an ozone generator. It can be used effectively. g, The catalytic effect of the photocatalytic layer can be obtained anywhere in the room if there is light including an ultraviolet region such as natural light or fluorescent light for lighting, and special light equipment is provided to obtain the photocatalytic effect. Not only is it unnecessary, but it does not consume any special power, so that installation cost can be reduced and energy saving can be achieved at the same time. h. Since light is used, there is no need for a prime mover such as a compressor unlike a ventilation system, and no noise is generated. i. Since the photocatalyst layer is formed directly on the outer surface of the curtain body, there is no regular waste such as a filter after use, and the environment is not polluted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the same.

[Explanation of symbols]

 Reference Signs List 1 photocatalyst layer 2 curtain body 3 curtain rail

[Procedure amendment]

[Submission date] January 18, 2001 (2001.1.1)
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

Further, the photocatalyst such as titanium dioxide, there is a self-cleaning action, to decompose the organic matter to be deposited on the surface of the photocatalyst layer 1, dust on the surface of the curtain 2, dust, oil stains and the like It does not collect and can maintain its cleanliness. Further, the action lasts semipermanently because of the catalytic reaction. Moreover, if there is light including an ultraviolet region such as natural light or fluorescent lamp light for illumination, a catalytic effect can be obtained, so that there is no need to provide any special equipment and no special power consumption.

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Claims (1)

[Claims] 1. A photocatalyst layer comprising a photocatalyst which decomposes organic substances by generating active oxygen and OH radicals by reacting with oxygen and moisture by exciting electrons and holes when irradiated with light, is provided on the outer surface. A curtain characterized by that.