JP2883761B2 - Antibacterial growth inhibitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to prevention of propagation of various bacteria in water.

[0002]

2. Description of the Related Art In the summer, when you go to the pool to play in the water, the temperature is high and germs easily grow, so the bottom of the pool, walls, tiles, etc. become slick and slippery. It can be very dangerous. Also, slimming is likely to occur in places where water is frequently used, such as a sink or a sink. On the other hand, when drinking water or the like is stored in a bottle or the like, if left at room temperature for a long period of time, germs will proliferate and will rot and cannot be drunk.

Conventionally, in order to prevent the occurrence of such slime and the propagation of various bacteria in water, the water in the pool is replaced, the pool and sink are cleaned to remove the slime, and the disinfection is performed using chlorine or a disinfectant. That has been done. In addition, when drinking water is stored for a long period of time, a preservative is added, or after disinfection by boiling, etc., sealing is performed (Heibonsha, Encyclopedia, Vol. 11, p.
473, 9, p. 514). However, all of these methods have problems in toxicity, safety, economy and the like.
Chlorine reacts with organic substances contained in water to produce carcinogenic trihalomethanes and organochlorine compounds, discolors swimwear, and has other problems, such as disinfectants and preservatives in terms of safety. There is.

[0004]

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide an economically effective germ-inhibiting body capable of easily and safely preventing the germ propagation.

[0005]

According to the present invention, there is provided a titania sol prepared from an alkoxide of titanium.
After coating on the substrate, it is baked, and the substrate is coated with titanium oxide.
By covering the substrate with a film,
This is achieved by using an electrically conductive film and by further coating a platinum film on the titanium oxide film. If the antibacterial growth inhibitor according to the present invention is stretched inside a pool or placed in a container containing drinking water, it receives light such as sunlight or an electric light to generate electrons and holes in the titanium oxide film. As a result, the growth of various bacteria can be prevented by the action.

[0006] The material of the substrate used in the present invention may be any material such as concrete, glass, plastic, ceramics and metal as long as it has the required strength. Further, the substrate used in the present invention may be transparent or opaque. However, it is more advantageous that the substrate is transparent because light can pass through the substrate from the outside and enter.

The substrate coated with a conductive film used in the present invention may be a substrate coated with copper, aluminum, or the like. However, when the substrate is placed in a container containing drinking water or the like to prevent the propagation of various bacteria, Is preferably provided with a transparent conductive film such as tin oxide, ITO (indium tin oxide) or zinc oxide.

The shape of the substrate used in the present invention may be any shape such as a prism, a cylinder, a sphere, a cone, a gourd and a rugby ball. Further, the substrate may have a closed shape, may or may not have a lid, and may have a circular or square tube shape.

[0009] The germ-inhibiting body according to the present invention is obtained by preparing a titania sol from an alkoxide of titanium obtained by the reaction of titanium tetrachloride and an alcohol, and dip coating, spin coating, coating, spray pyrolysis, etc. And then fired to produce
Is done. The firing temperature at that time is most preferably about 500 ° C.

The method of coating the substrate with the conductive film used in the present invention includes electrolytic plating, CVD, PVD, and sputtering. In addition, examples of a method for coating a platinum film on a substrate coated with a titanium oxide film used in the present invention include a photoelectrodeposition method, a CVD method, a PVD method, and a sputtering method.

[0011] The thus-obtained germ-inhibiting body in which a titanium oxide film is coated on a substrate or a substrate provided with a conductive film, or a germ-inhibiting body in which a platinum film is further coated thereon is stretched inside the pool. Or place it in a container containing drinking water, etc., receive light from sunlight or electric light, etc., and electrons and holes are generated in the titanium oxide film to perform oxidation and reduction. Since breeding can be prevented, the bottom, walls, tiles, etc. of the pool can be prevented from becoming slippery due to slime, and drinking water can be stored at room temperature for a long time. The germ propagation preventive body according to the present invention can be used not only for pool walls, but also for bathroom tiles,
It can be used in a wide range of applications, such as bathtubs, bathtubs, fountain tiles, sinks, sink triangular corners, pool and bathroom railings, washbasins, cutting boards, washbasins, and fish showcases.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Among the embodiments of the present invention, particularly representative ones will be described below.

Example 1 A metal basin was coated with a titanium oxide film by a sol-gel method, and was kept under a fluorescent lamp for one month in the water of a fishbowl. The water remained transparent and no bacteria or algae grew. When a metal basin not covered with the titanium oxide film was used, algae grew within one week, resulting in slime and water becoming cloudy.

Example 2 A colorless and transparent glass ball coated with a transparent conductive film of ITO and coated with a titanium oxide film by a sol-gel method was placed in a 2 g / 1 aqueous solution of potassium chloroplatinate in an ethanol solution. While stirring with, the light of a 100 W mercury lamp was irradiated for 4 hours, and the surface of the titanium oxide film was coated with platinum by a photoelectric deposition method. The obtained antibacterial growth inhibitor was placed in a transparent glass bottle containing natural clear water, and left in a bright place for one month. As a result, the water became white and turbid and germs grew when the germ germ prevention body was not added, but when the germ germ prevention body was added, the water remained transparent and almost no germs were detected. .

Example 3 A platinum oxide ceramic tile was coated with a titanium oxide film by a sol-gel method, and then its surface was coated with platinum, attached to a pond wall, and filled with pond water. The tile was left undisturbed for two months, but no slimming occurred on the tiles.

[0016]

As described above, the present invention is to provide an energy-saving, easy, safe and economical germ-inhibiting body in order to prevent the occurrence of slime in pools and sinks and the propagation of germs in water. It is intended to be provided. On the substrate subjected to the substrate or conductive film, alkoxy titanium
After coating the titania sol prepared from SID, the bacterium proliferation inhibitor having formed a titanium oxide film by firing, or the germ propagation inhibitor having a platinum film further coated on the titanium oxide film , the inside of a pool or the like Or by placing it in a container containing drinking water, etc.
Electrons and holes are generated in the titanium oxide film to redox,
Since the action prevents the growth of various bacteria, the bottom, walls, tiles, and the like of the pool can be prevented from becoming slippery due to slime, and drinking water can be stored at room temperature for a long time. In addition, when placed in a transparent fishbowl, vase, or the like, water is activated by the redox action of the titanium oxide film, so that fish, flowers, and the like can live longer. The titanium oxide used in the present invention is also used in paints, cosmetics, toothpastes, and the like, and has the advantages of durability, non-toxicity, and safety. And the germ growth prevention body according to the present invention is not only a pool wall, but also a bathroom tile, a slicing saw, a sink,
It can be used in a wide range of applications, such as sink triangles, bathtubs, bathtubs, fountain tiles, handrails for pools and bathrooms, washbasins, cutting boards, washbasins, fish showcases, and humidifier outlet nozzles. And red, blue, purple,
Since it produces a beautiful color such as green, it is also suitable for decoration.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takahiro Suzuki 102-11, Miwanho Kitahara, 3-11, Kitahara-cho, Mizuho-ku, Nagoya-shi 102 (72) Inventor Toshihiko Ozaki 91, Kumagamicho, Nishiio-shi, Aichi Prefecture 91 (72) Inventor Kazuichi Kato 400 Iwasaki, Komaki-shi, Aichi Prefecture Inside Kato Machinery Works, Ltd. (72) Inventor Hiroaki Yokoi 56, Nobata, Yatsurugi-cho, Iwakura-shi, Aichi Prefecture Judge, Chief of Referee, Aiwa Inside Co., Ltd. Referee Takanori Kota (56) References JP-A-61-83106 (JP, A) JP-A-63-42793 (JP, A) JP-A-2-14820 (JP, A) JP-A-3-36257 ( JP, A)

Claims (4)

(57) [Claims] 1. A titanium prepared from an alkoxide of titanium.
After coating the near sol on the substrate, baking
And a germ propagation preventing body comprising a substrate coated with a titanium oxide film. 2. The substrate has a conductive coating.
The germ propagation preventive body according to claim 1, wherein 3. A platinum film is further coated on the titanium oxide film.
Miscellaneous bacterial multiplication preventing member according to claim 1, characterized in that the. 4. A platinum film is further coated on the titanium oxide film.
3. The germ propagation preventive body according to claim 2, wherein