JPH03244466A - Method and agent for deodorizing and disinfection of space - Google Patents

Abstract

PURPOSE:To effectively perform disinfection and deodorizing of a wide space in which water drops are not easily produced, by atomizing an aquous solution of deodorant containing silicic acid over 1% as converted in SiO2 in the condition of the solution as heated to over 40 deg.C, and spraying it into the space. CONSTITUTION:A deodorizer liquid of 1l silicate sol aqueous solution (containing 20% as converted into SiO2) is provided together with a disinfection agent of 5g pobidden iodine (Poly[1-(2-oxx-1-pyrrolidinyl)ethylene]iodine comples) contained 10% as effective iidine. These are mixed to form a deodorizing/ disinfecting agent. This is diluted with 20l hot water at 75 deg.C and contained in an atomizer. This atomizer is fitted with a heater in the neighborhood of its nozzle being capable of heating the water path up to the nozzle to 200 deg.C. In the same manner as with an instant water boiler, liquid of the deodorizing/ disinfecting agent passing though the water path is sprayed out of the nozzle atomizedly while heated to over 80 deg.C. As general germs die at 40 deg.C, an iodine content of the liquid of at least 10 ppm provides sufficient disinfection if the pasteurizing effect with heat is taken into consideration.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method of deodorizing and disinfecting a space and a deodorizing disinfectant, and in particular to a method of spraying a heated deodorant disinfectant solution and dispersing the spray. The present invention relates to a method for deodorizing and disinfecting a space in which the liquid agent reaches even objects by using force, and a deodorizing and disinfecting agent used in the method.

[Conventional technology]

Conventionally, large buildings, such as the inside of an aircraft, are loaded with people and cargo, and as a result, they are often contaminated with scents or bacteria, so they must be disinfected or deodorized at regular intervals. For disinfection, disinfectant is generally sprayed using a sprayer, and for deodorization, liquid deodorant is also sprayed.

[Problem to be solved by the invention]

The method of spraying disinfectants and deodorants using a sprayer has the following drawbacks.

(In a large space, the spray cannot reach far unless the spray power is strong, and as a result, the spray hits too hard in areas where it directly hits, causing water droplets to drip.)

(b) It is difficult to spray objects, corners, and especially deep areas, and if you try to apply the spray, you have to do it in a concentrated manner, which has the disadvantage that the spray hits too much and turns into water droplets.

(8) Accidents have even occurred in which pet animals licked the disinfectant dripping onto walls and floors, resulting in death.

(For example, when ordinary silica sol is used as a disinfectant, the particles are large, so the silica precipitates in the solution, resulting in a difference in spray concentration.

(e) Furthermore, even when a normal silica sol solution is sprayed as a disinfectant, there is a problem that not only does it form water droplets as described above, but also that these water droplets dry and form white stains of silica.

This invention solves the above-mentioned difficulties and can efficiently disinfect and deodorize a wide space, and disinfect and deodorize a space where water droplets are difficult to form.
It was developed for the purpose of providing a deodorizing method and a disinfectant deodorizing solution used therein.

[Means to solve the problem]

As a means to solve the above problems, this invention provides (1) a deodorant aqueous solution containing 1% or more of silicic acid in terms of SiO□.
A method for deodorizing and disinfecting a space, which is characterized by spraying the mixture into a spray while heating it to a temperature above ℃.

(2) A method for deodorizing and disinfecting spaces in which a deodorizing and disinfecting solution prepared by mixing a disinfectant in an aqueous deodorant solution is heated to 40° C. or higher and then sprayed in the form of a spray into the interior space of a building.

(3) An aqueous silicic acid sol solution with an IC electrical conductivity of 535 us/- or more and silicic acid particles of 3 to 8 mμ has an iodine content of 1
A deodorizing disinfectant characterized by containing OPPN or more.

A technical measure was taken.

Basically, any deodorant liquid can be used in the present invention, but since it is to be made into a spray, it is preferably a silicic acid sol type liquid containing fine silicic acid particles.

In this respect, for example, an active silicic acid sol aqueous solution (2
0% content, pH 2.76, silicic acid particle diameter 3 to 8 mμ, electrical conductivity 5351 s/- or more). Since the size of influenza virus is 120 mμ, these silicic acid particles are extremely small. In addition, since the electric conductivity of general silicic acid sol is up to 400 .mu.S/-, this silicic acid sol aqueous solution is ionized and has excellent odor adsorption properties.

Basically, any disinfectant can be used, but it is important to avoid those that are harmful to the body as much as possible. Therefore, for example, the following disinfectants are selected.

(1) Iodine-based povidone iodocalcium iodate (2) Oxide-based ozone (3) Alcohol-based ethanol [Function] This invention configured as described above has the following effects.

(1) When an aqueous deodorant solution or a deodorizing disinfectant solution is heated to 40°C or higher and sprayed into a space, an air current is generated due to the temperature difference between the air temperature and the air pressure difference. The aqueous deodorant solution and deodorizing disinfectant solution are spread well into shadows, corners, backs, and even toward the ceiling.

(2) When heated deodorant liquid adheres to walls, ceilings, and surfaces of objects, the heat kills germs and has a disinfecting effect.

(3) The heated deodorant liquid easily evaporates, and the generation of water droplets is suppressed.

〔Example〕

As a deodorant liquid, use a silicic acid sol aqueous solution (High Clean Nara: manufactured by Sanko Kagaku Kenkyusho, 20% content in terms of 5in2, pH 2,76, silicic acid particle size 3-8 mμ, electrical conductivity 535-540 IJ8).
/am”) at 1j, bovidone iodine (Po1y (1-(2-OxO-1-
pyrr.

1dinyl) ethylene) 1odine
complex)=5g of 10% effective iodine was prepared. This was mixed to make a deodorizing disinfectant.

The deodorizing disinfectant was diluted with 75° C. hot water 20j and placed in a sprayer. This sprayer is equipped with a heater near the nozzle and is capable of heating the waterway leading to the nozzle to 200℃, and the deodorizing disinfectant liquid that passes through the waterway like an instantaneous water heater has a temperature of 80℃ or higher. It is heated and sprayed from the nozzle hole in the form of a spray.

Indoors with a room temperature of 24.3℃ (60 rri") <Miss spray amount 40cc/l1in, air flow rate 0.3m'/l1in
It was sprayed for 10 minutes.

the result, (1) No dripping of water was observed.

(2) It was confirmed by the flow of incense smoke that the spray evenly spread to every corner of the shadowy pillar) and the room.

(3) Regarding odor, when the indoor odor was measured in advance (using a conventional method), there was 520 ppm of ammonia, 210 ppl of hydrogen sulfide, and 72 ppl of methyl mercaptan, but the measurement after 10 minutes of implementing the present invention found that the odor was 111 ppl of ammonia.
)011, hydrogen chloride was 30 pH 11, and methyl mercaptan was 8 ppl, and a deodorizing effect was observed.

(4) Regarding disinfection, agar colloid pieces were collected in advance in a dish and exposed to the outside air, and when the samples were left indoors and then disinfected as described above, sterilization of Staphylococcus aureus Streptococcus, rods, etc. was observed. .

The disinfectant povidone-iodine alone has a concentration of 200% at room temperature.
A bactericidal effect is seen at ~240 ppm, but in the above example, it is known that an iodine concentration of 233 p1) TI has a sufficient disinfecting effect. Since most bacteria die at temperatures above 40°C, if the sterilizing effect of heat is taken into consideration, sufficient disinfection can be achieved if the iodine content is 10 ppm or more in the deodorant disinfectant solution.

In addition, even when the disinfectant solution was diluted 100 times with hot water, it was found to be effective in deodorizing up to ammonia concentration of 2 Qapl, hydrogen sulfide 61 ppm, and methyl mercaptan 17 ppm. Therefore, the concentration of the deodorant solution depends on the location and the strength of the odor. It may be selected as appropriate.

However, the aqueous silicic acid sol solution is harmless to the human body, and it goes without saying that the diluted solution of povidone-iodine is also almost harmless to the human body in the form of a spray.

The deodorant liquid 1j was diluted with 80° C. hot water 20j, placed in a sprayer, and sprayed into the space. When the injected spray was measured, it was found that the temperature was 74°C at a room temperature of 24.1°C.

Therefore, when this was sprayed for 10 minutes under the same spraying conditions as described above, a deodorizing effect almost similar to that described above was observed. Regarding disinfection, after placing fish in the same dish as above and exposing it to the outside air for half a day, the dish with the fish removed was brought indoors and the deodorant solution was sprayed onto the dish from a distance of 2 meters according to the instructions above. Not only did it deodorize the room, but there was no fish odor attached to the dish.Furthermore, the dish was subjected to a surface adhesion test (a well-known bacterial culture test!1), but there was no culture effect at all. The absence of was confirmed.

Furthermore, if ethanol is added as a disinfectant at a ratio of 93 to 5% per IJ of the deodorant liquid, a more effective disinfecting and sterilizing effect can be obtained.

〔Effect of the invention〕

As detailed above, the present invention has the following excellent effects.

(1) Because disinfectant is mixed in the deodorant aqueous solution, -
It is possible to disinfect and deodorize spaces such as aircrafts at the same time by spraying at the same time, which has the effect of improving work efficiency.

(2) Since the aqueous deodorant solution and deodorizing disinfectant solution are sprayed after being heated to 40°C or higher, the air pressure difference in the space allows them to fully reach objects, corners, and high ceilings, improving work efficiency. It is excellent.

(3) Since the deodorizing disinfectant liquid is sprayed after being heated to 40°C or higher, it has excellent evaporability and does not form into water droplets.

(4) Since it is sprayed in a heated state, it has the effect of sterilizing bacteria with heat, and the concentration of the disinfectant can be reduced to minimize the effect on the human body.

Claims (3)

[Claims] (1) A method for deodorizing and disinfecting a space, which comprises heating an aqueous deodorant solution containing 1% or more of silicic acid in terms of SiO_2 to a spray form and spraying it into the space. (2) A method for deodorizing and disinfecting a space, which comprises heating a deodorizing disinfectant solution prepared by mixing a disinfectant in an aqueous deodorant solution to a temperature of 40° C. or higher and spraying it into a spray form into a space inside a building. (3) has an electrical conductivity of 535 μs/cm^2 or more,
A deodorizing disinfectant liquid characterized by containing an iodine content of 10 ppm or more in a silicic acid sol aqueous solution having silicic acid particles of 3 to 8 mμ.