How to deodorize a room with an animal odor

Abstract

To provide a method for deodorizing a chamber with animal odor, that can shorten an operation time at the deodorizing operation and further can obtain sufficient deodorizing effect.SOLUTION: A method for deodorizing a chamber with animal odor, includes the following steps: (1) a filth removal step to remove filth containing at least one of body fluids, feces, and urine; (2) a step of cleaning by spraying an alkaline detergent; (3) an ozone fumigation process in which ozone is sprayed into the chamber after step (2); (4) a step in which a weakly acidic detergent is sprayed and cleaned; (5) an ozone fumigation process in which ozone is sprayed into the chamber after step (4); (6) After the ozone fumigation step (5), a coating process in which a water-based epoxy resin paint is applied to the areas where dirt has adhered or penetrated.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a deodorizing method for a room having an animal odor. [Background technology]

[0002] In recent years, an increasing number of people are living with pets such as dogs and cats indoors as members of their families. However, there has been an increase in cases where pets are abandoned when they become too numerous to care for or when owners are unable to care for their pets due to personal circumstances. Rooms where pets are abandoned become soiled and emit a strong animal odor due to the decay of pet corpses, body fluids, excrement, etc. Furthermore, when owners who have kept pets indoors move, the room where the pet was kept becomes soiled and emits a strong animal odor due to the pet's body fluids, excrement, etc.

[0003] As mentioned above, rooms where pets have been kept indoors tend to become soiled with pet bodily fluids, excrement, etc., and emit a strong animal odor. In such cases, it is necessary to clean the room and thoroughly deodorize it to restore it to its original state.

[0004] A known method for deodorizing a room that has an animal odor includes a filth cleaning operation to clean up filth selected from body fluids, feces, and urine, followed by spraying a weak alkaline liquid agent, followed by ozone fumigation, followed by spraying a weak acid liquid agent, and followed by ozone fumigation (see Patent Document 1

[0066] to

[0086] ,

[0113] to

[0134] , and [Figure 2]).

[0005] However, the method of Patent Document 1 has an insufficient deodorizing effect, and in order to achieve a sufficient deodorizing effect, it is necessary to repeat the spraying of a weak alkaline solution, the ozone fumigation, the spraying of a weak acid solution, and the ozone fumigation until the odor in the room is no longer noticeable, which has the problem of taking a long time to complete (see paragraphs

[0122] ,

[0133] , and [Figure 2] of Patent Document 1). Furthermore, in many cases after the deodorizing treatment, there is a major problem in that the odor reoccurs within a few days to a few weeks. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6889954 Summary of the Invention [Problem to be solved by the invention]

[0007] To provide a method for deodorizing a room having an animal odor, which solves the above-mentioned problems of the prior art, shortens the working time for deodorizing, obtains a sufficient deodorizing effect, and prevents the reoccurrence of odor. [Means for solving the problem]

[0008] As a result of intensive research by the inventors to achieve the above-mentioned object, they have found that if a water-based epoxy resin paint is applied as a coating process after performing the dirt removal process, alkaline detergent spray cleaning process, ozone fumigation process, weak acid detergent spray cleaning process, and ozone fumigation process, a sufficiently high deodorizing effect can be obtained, and moreover, an extremely excellent deodorizing effect can be obtained in which odors do not reoccur after the deodorizing work; therefore, there is no need to repeat the alkaline detergent spray cleaning process, ozone fumigation process, weak acid detergent spray cleaning process, and ozone fumigation process, and the deodorizing work time can be significantly reduced; because a water-based paint is used, there is no odor of organic solvents, and the working environment is good; and even if the painted part is wet with water, it can be painted as is, so there is no need to wait for it to dry, and workability is excellent. As a result of further research, they have been able to complete the present invention.

[0009] The present invention provides the following deodorizing method for a room having an animal odor.

[0010] 1. Deodorizing method for rooms with animal odors, including the following steps: (1) a waste removal step of removing waste including at least one of body fluids, feces, and urine; (2) A process of spraying and cleaning with alkaline detergent; (3) Ozone fumigation process in which ozone is sprayed into the room after step (2); (4) A process of spraying and cleaning with a weak acid detergent; (5) an ozone fumigation step in which ozone is sprayed into the room after step (4); (6) After the ozone fumigation process (5), apply water-based epoxy resin paint to the areas where dirt has adhered or penetrated. twice A painting and coating process in which the surface is painted and covered.

[0011] 2. The deodorizing method according to item 1, wherein a deodorizing agent is sprayed during the ozone fumigation step (3).

[0012] 3. The deodorizing method according to item 1, wherein a deodorizing agent is sprayed during the ozone fumigation step (5).

[0013] 4. The deodorizing method according to item 1, wherein the ozone fumigation steps (3) and (5) are carried out by exposing the room to ozone at a temperature of 18 to 30°C, a humidity of 60 to 100%, and an ozone concentration of 1 to 30 ppm.

[0014] 5. The deodorizing construction method according to item 1 above, wherein the water-based epoxy resin paint used in the coating step (6) is a two-component paint consisting of a base agent containing an epoxy resin and a curing agent.

[0015] 6. In the coating step (6), Furthermore, a third coat of water-based epoxy resin paint is applied. The deodorizing construction method described in

[0016] 7. In the coating step (6), The first and second coats of water-based epoxy resin paint should each be applied in an amount of 10 to 60 g / m2 in solids. 2 That is, Item 1 above The deodorizing construction method described in [Effects of the Invention]

[0017] The deodorizing method for a room having an animal odor according to the present invention has the following remarkable effects.

[0018] (1) By applying a water-based epoxy resin paint as a coating process after the soil removal process, alkaline detergent spray cleaning process, ozone fumigation process, weak acid detergent spray cleaning process, and ozone fumigation process, a sufficiently high deodorizing effect can be obtained, and an extremely excellent deodorizing effect can be exhibited, with no odor reoccurring after the deodorizing process. This excellent deodorizing effect is believed to be due to the excellent penetration and adhesion of the water-based epoxy resin paint applied in the coating process. That is, when a water-based epoxy resin paint is applied to cover areas where soil has adhered or penetrated in a room with an animal odor, the water-based epoxy resin paint penetrates the coated area and fixes the odor-causing substances remaining inside the coated area. Furthermore, the excellent adhesion of the formed coating film effectively blocks the odor, resulting in an extremely excellent deodorizing effect.

[0019] (2) Due to the excellent deodorizing effect of (1) above, it is no longer necessary to repeat the alkaline detergent spray cleaning process, ozone fumigation process, weak acid detergent spray cleaning process, and ozone fumigation process, thereby significantly shortening the deodorizing work time.

[0020] (3) By using water-based epoxy resin paint in the coating process, there is no odor of organic solvents, making the working environment better. Also, since no organic solvents are used, there is no harm to the health of workers, and there is no risk of fire. In addition, there is almost no inconvenience to those in the vicinity of the work site.

[0021] (4) In addition, the water-based epoxy resin paint used in the painting and coating process can be applied as is even if the painted part is wet with water, so there is no need to wait for it to dry, which significantly reduces working time and makes it easier to work with.

[0022] (5) Therefore, the deodorizing method of the present invention has a high deodorizing effect, which can effectively eliminate animal odors, allowing the room to be fully restored to its original state. By restoring the room to its original state in this way, the room's utility value and asset value can be maintained. DETAILED DESCRIPTION OF THE INVENTION

[0023] How to deodorize a room with an animal odor The deodorizing method of the present invention for rooms with animal odors achieves a high deodorizing effect by sequentially carrying out a dirt removal process, an alkaline detergent spray cleaning process, an ozone fumigation process, a weak acid detergent spray cleaning process, an ozone fumigation process, and a paint coating process.

[0024] A room with an animal smell The type of room containing animal odors that is the target of deodorization by the deodorizing method of the present invention is not particularly limited, and includes various rooms such as homes, apartment buildings, stores, inns, restaurants, factories, warehouses, garages, etc. The material of the room to be deodorized is also not particularly limited, and it may be made of wood, concrete, etc. The size of the room to be deodorized is also not particularly limited, but the lower limit of the room area is, for example, 20 m2 More than that, and another 50m 2 For example, the upper limit of the area of ​​a room is 300m 2 Below that, another 200m 2 The following rooms can be deodorized:

[0025] The types of animals include any animals kept as pets. Typical examples include, but are not limited to, dogs and cats. There are no particular limitations on the length of time the animals have been kept or abandoned. Whether the animals are alive or dead is not an issue. The period of time kept is usually one year or longer, and in many cases it is as long as ten years or longer.

[0026] The deodorizing method of the present invention will be explained below in the order of the steps of soil removal, alkaline detergent spray cleaning, ozone fumigation, weak acid detergent spray cleaning, ozone fumigation, and coating.

[0027] (1) Dirt removal process The waste removal process is a process for removing waste including one or more of animal body fluids such as saliva, blood, lymph, etc.; excrement such as feces and urine; hair, etc. By performing the waste removal process and removing the waste, it becomes possible to reliably deodorize rooms with animal odors in the subsequent weak alkaline liquid agent spraying process, ozone fumigation process, etc.

[0028] In the waste removal process, body fluids, excrement, hair, etc. adhering to floors, walls, fixtures, doors, windows, window frames, etc. are removed using tongs, scrapers, spatulas, etc. It is also desirable to remove all tatami mats, cushion flooring, wallpaper, etc. that have urine or other waste adhering to or soaked in them.

[0029] In the method of the present invention, a disinfectant can be sprayed as needed before the soil removal step. The disinfectant can be a liquid containing a disinfectant selected from stabilized chlorine dioxide, hypochlorous acid, and sodium hypochlorite, either singly or in combination. Spraying the disinfectant effectively removes bacteria, viruses, and the like from the room, thereby preventing infectious diseases and contributing to deodorizing the room. Among the disinfectants, a liquid containing sodium hypochlorite is preferred because it is highly effective in removing bacteria, viruses, and the like from the room. In this case, the concentration of sodium hypochlorite is preferably 500 ppm or higher.

[0030] Furthermore, following the spraying of the disinfectant, ozone fumigation can be carried out as necessary. Ozone fumigation is carried out by spraying ozone into the room using an ozone fumigation device. This ozone fumigation not only inactivates viruses but also temporarily suppresses odors, allowing workers to efficiently perform waste removal work and also serves as a measure against neighboring areas. This ozone fumigation is preferably carried out after wiping off the disinfectant, which has strong oxidizing power. This ozone fumigation is preferably carried out by exposing the room to ozone at an ozone concentration of about 1 to 20 ppm for about 20 to 90 minutes.

[0031] In the present invention, a known ozone fumigation device can be used for ozone fumigation. Preferred ozone fumigation devices include ActivO-J (manufactured by Kai Corporation), Super Activo (manufactured by Kai Corporation), and Panther-J (plasma ozone deodorizing device, manufactured by Ecozone Co., Ltd.).

[0032] (2) Alkaline detergent spray cleaning process The alkaline detergent spray cleaning process is a process in which an alkaline detergent is sprayed into the room after the soil removal process to clean it. The alkaline detergent may be in either liquid or powder form and is preferably diluted or dissolved in water before use. The alkaline detergent preferably has a pH in the range of approximately 8 to 12, and examples thereof include weak alkaline detergent solutions containing one or more of anionic surfactants, amphoteric surfactants, nonionic surfactants, sodium sesquicarbonate, and sodium bicarbonate. The cleaning process involves spraying the weak alkaline detergent and scrubbing with a deck brush, sponge, or the like to clean the room. For severe soiling, a strong alkaline detergent, such as a detergent containing sodium hydroxide with a pH of approximately 12 or higher, may be used in combination as needed. Furthermore, in areas of a room where a cat has been left unattended that have a strong odor, a detergent containing chlorine bleach can be used to clean and efficiently deodorize the area.

[0033] Furthermore, when spraying alkaline detergent for cleaning, the dirt can be efficiently cleaned by spraying high-pressure steam using a steam cleaner, such as a high-pressure steam device (manufactured by Karcher).

[0034] (3) Ozone fumigation process In the method of the present invention, an ozone fumigation step is carried out after (1) the dirt removal step and (2) the alkaline detergent spray cleaning step. The ozone fumigation step is a step in which ozone is sprayed into the room using an ozone fumigation device. By carrying out the ozone fumigation step after the dirt has been removed and the room has been cleaned, odorous components can be efficiently decomposed and removed.

[0035] In the method of the present invention, it is preferable to spray a deodorizer during the ozone fumigation step (3). This is because the combination of the deodorizer spray and the subsequent ozone fumigation can produce a synergistic deodorizing effect. Furthermore, it is preferable that the deodorizer is a liquid agent. Being a liquid agent allows the deodorizer to be efficiently sprayed or applied to floors, walls, etc.

[0036] The deodorizing agent is preferably sprayed as a weak alkaline solution such as an aqueous solution of sodium sesquicarbonate, baking soda, etc. onto the floor, walls, windows, ceiling, etc. of the room before the subsequent ozone fumigation. This neutralizes the acidic components contained in the feces and urine, effectively eliminating the odor.

[0037] Furthermore, the deodorizer may further comprise a liquid deodorizer containing at least one enzyme selected from protease, lipase, amylase, and cellulase. By spraying a deodorizer containing these enzymes followed by ozone fumigation, proteins, fats, starches, and fibers can be decomposed, resulting in efficient deodorization. Examples of deodorizers containing the enzymes include Granbioair (manufactured by Kai Corporation), Granbiopro (manufactured by Kai Corporation), and Sesquiplus (manufactured by Sekken Hyakka Co., Ltd.).

[0038] In this ozone fumigation step, it is preferable to spray ozone at a slightly higher temperature when the floor, wall, etc. are wet and humid due to cleaning during the alkaline detergent spray cleaning step or deodorizer spray, in order to improve deodorizing efficiency. Specifically, the humidity is preferably about 60 to 100%, more preferably about 70 to 100%. The temperature is preferably about 18 to 30°C, more preferably about 20 to 28°C. If temperature and humidity adjustment is required, an air conditioner, circulator, heater, humidifier, etc. can be used as appropriate.

[0039] The ozone fumigation step in this stage is preferably carried out by exposing to ozone at an ozone concentration of about 1 to 30 ppm. The ozone exposure time is usually preferably about 0.5 to 4 hours. The various ozone fumigation devices described above can be used for the ozone fumigation step.

[0040] (4) Weak acid detergent spray cleaning process The weak acid detergent spray cleaning process is a process of spraying a weak acid detergent into the room after the (3) ozone fumigation process to clean it. The weak acid detergent preferably has a pH in the range of about 1.5 to 4, and examples thereof include detergent solutions that are aqueous solutions containing acidic substances such as citric acid, surfactants such as anionic surfactants, amphoteric surfactants, and nonionic surfactants. The spraying of the weak acid detergent is preferably carried out by drying the room after the ozone fumigation process, spraying the weak acid detergent solution, and then cleaning using a steam cleaner or the like.

[0041] (5) Ozone fumigation process In the method of the present invention, an ozone fumigation step is further carried out after the (4) weak acid detergent spray cleaning step. The ozone fumigation step is a step in which ozone is sprayed into the room using an ozone fumigation device. By carrying out the ozone fumigation step at this stage, the odor can be efficiently decomposed and eliminated after the dirt has been removed and the room has been cleaned.

[0042] In the method of the present invention, it is preferable to spray a deodorizer during the ozone fumigation step (5). This is because the combination of the deodorizer spray and the subsequent ozone fumigation can produce a synergistic deodorizing effect. Furthermore, it is preferable that the deodorizer is a liquid agent. Being a liquid agent allows the deodorizer to be efficiently sprayed or applied to floors, walls, etc.

[0043] The deodorizing agent is preferably sprayed as a weak acidic solution containing an acidic substance such as citric acid onto the floor, walls, windows, ceiling, etc. of the room prior to the subsequent ozone fumigation, thereby neutralizing the alkaline components contained in the feces and urine and effectively deodorizing the room.

[0044] In this ozone fumigation step, it is preferable to spray ozone at a slightly higher temperature when the floor, wall, etc. are wet and humid due to cleaning during the weak acid detergent spray cleaning step or deodorizer spray, in order to improve deodorizing efficiency. Specifically, the humidity is preferably about 60 to 100%, more preferably about 70 to 100%. The temperature is preferably about 18 to 30°C, more preferably about 20 to 28°C. If temperature and humidity adjustment is required, an air conditioner, circulator, heater, humidifier, etc. can be used as appropriate.

[0045] The ozone fumigation step in this stage is preferably carried out by exposing to ozone at an ozone concentration of about 1 to 30 ppm. The ozone exposure time is usually preferably about 0.5 to 4 hours. The various ozone fumigation devices described above can be used for the ozone fumigation step.

[0046] (6) Paint coating process (5) After the ozone fumigation process, this is the process of painting and covering areas in the room where dirt has adhered or penetrated with water-based epoxy resin paint. By painting water-based epoxy resin paint on areas on the floor, walls, etc. where dirt has adhered or where dirt has penetrated or is suspected to have penetrated, it is possible to reliably block out odors remaining in these areas.

[0047] In the method of the present invention, it is important to use a water-based epoxy resin paint as the paint in the coating process. The use of a water-based epoxy resin paint provides excellent permeability and adhesion to the coated area, resulting in a sufficiently high deodorizing effect, and furthermore, an excellent deodorizing effect in that odors do not reoccur after deodorizing work. In addition, there are other advantages, such as a good working environment without the odor of organic solvents, and the fact that the painted area can be painted as is even if it is wet with water, eliminating the need to wait for it to dry, and thus excellent workability.

[0048] Although one-component paints containing an epoxy resin and a curing agent such as a ketiminated polyamine can be used as aqueous epoxy resin paints, two-component paints consisting of a base agent containing an epoxy resin and a curing agent are preferred. Two-component epoxy resin paints are prepared by mixing a base agent, which is an aqueous emulsion of an epoxy resin such as bisphenol A epoxy resin or bisphenol F epoxy resin, with a curing agent, which is an aqueous emulsion of amines such as aliphatic amines, alicyclic amines, or aromatic amines, ketiminated aliphatic polyamines, or modified amines such as polyamine-epoxy resin adducts, immediately before use, and then applying the mixture to form a coating. The mixing ratio is not particularly limited and can be determined as appropriate. For permeable surfaces such as wood or concrete, for example, a weight ratio of base agent:curing agent:water of approximately 1:1:1 is used. For non-permeable surfaces such as metal or plastic, for example, a weight ratio of base agent:curing agent:water of approximately 1:1 is used. After mixing, painting is completed within the usable time. The usable time after mixing varies depending on the temperature and humidity, but is usually about 30 to 90 minutes.

[0049] It is also preferable to apply the water-based epoxy resin paint twice. After the first coat has dried, the second coat is applied. In this case, if the painted area has permeability, some of the paint will penetrate the painted area with the first coat. After application, the paint usually dries and hardens in about 30 to 90 minutes. There are no particular restrictions on the amount of water-based epoxy resin paint to be applied in the first and second coats, and although this varies depending on the degree of permeability of the painted area, it is usually 10 to 60 g / m2 in solids. 2 It is preferable that the thickness of the coating be about 1 / 2 of the original thickness. Furthermore, in areas where the odor is particularly strong, such as urine odor, a third coat may be applied to ensure complete deodorization. The amount of coating for the third coat is the same as for the first and second coats.

[0050] The water-based epoxy resin paint can be applied using, for example, a brush, roller, air gun, etc. After application, the paint is simply dried and cured, completing the deodorizing process and providing a sufficiently high deodorizing effect, with no recurrence of odors. [Example]

[0051] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples in any way.

[0052] The deodorizing application environment and the water-based epoxy resin paint used in each example are as follows:

[0053] Deodorizing environment for rooms with animal odors and odor monitoring method Using the indoor environment IoT sensor pod "POD2" (manufactured by AnalyticSense, Inc.), the temperature, humidity, ozone (O3) concentration, hydrogen sulfide (H2S) concentration, and ammonia (NH3) concentration of the room where deodorization was being performed were monitored from the start to the end of the treatment. Of these, hydrogen sulfide (H2S) concentration and ammonia (NH3) concentration were used as indicators of room odor. With "POD2," each of the above items can be constantly monitored using a smartphone app in a Wi-Fi environment.

[0054] Water-based epoxy resin paint In each example, the water-based epoxy resin paint used was "Value painting VMP-1000" (manufactured by Value Creation Co., Ltd.) "Value painting VMP-1000" is a two-component water-based epoxy resin paint consisting of a base agent, which is an epoxy resin emulsion with a solid content of 65% by weight, consisting of epoxy resin, surfactant, and water, and a curing agent, which is an emulsion of modified aliphatic polyamine with a solid content of 50% by weight, consisting of modified aliphatic polyamine and water.

[0055] Example 1 Case 1 (Deodorizing treatment in a room where a dog was kept) The room to be deodorized was 60m2 in area, where three small dogs had been kept for eight years. 2The tenant of a 2DK rental apartment had run away in the middle of the night, leaving their dog unattended. The dog was rescued, the insurance company had removed the household goods, and the management company had requested deodorization. As it had been about six months since the court's permission to dispose of the household goods was granted, the room was filled with a very strong smell of urine and feces, which had permeated the wallpaper and fixtures, leaving it in a terrible state. The layout consisted of a Japanese-style room, a Western-style room, and a kitchen, and the hallway from the entrance was covered in cushion flooring (CF).

[0056] Condition at the start of deodorization work The Japanese-style room, Western-style room, and kitchen were covered in urine stains and some areas had accumulated feces, making it impossible to breathe in the rooms without a mask with a filter. The entrance hall in particular was littered with filth, likely from a dog waiting for its owner to return, making it difficult to deodorize. Before the deodorizing treatment, the odors measured in all positions in the Japanese-style room, Western-style room, and kitchen were 2-3 ppm for hydrogen sulfide and 1-3 ppm for ammonia, making it impossible to breathe normally. The entrance hall had extremely high levels of hydrogen sulfide and ammonia, at 4 ppm and 4 ppm, respectively.

[0057] (1) Dirt removal process The disinfectant used was "Haiter" (Kao Corporation) diluted with water to create a solution containing 1000 ppm of sodium hypochlorite. This solution was sprayed over the entire room, including the ceiling, walls, and floor, using a pressurized electric sprayer over an area of ​​20 m. 2 Disinfection was carried out by spraying approximately 1 liter per area. After wiping off the sprayed sodium hypochlorite, 7500 mg / hr of ozone was sprayed for approximately 60 minutes using an ozone fumigation device, Panther-J (manufactured by Kai Corporation), to temporarily decompose the odor and make work easier. The ozone concentration was 8-12 ppm.

[0058] Next, tongs and a scraper were used to remove the body fluids, excrement, hair, and other debris that had adhered to the floor and walls. Six tatami mats were removed from the Japanese-style room, and the urine-soaked cushion flooring was also removed.

[0059] (2) Alkaline detergent spray cleaning process An alkaline detergent solution was sprayed onto the floor (the foundation beneath the cushioned flooring was plywood), baseboards, walls, etc., and then a deck brush and sponge were used to clean away any adhering dirt or soaked urine. Areas with a strong odor were further cleaned using a steam cleaner after spraying with the detergent solution. The alkaline detergent solution used was the kitchen detergent "Joy" (manufactured by P&G Japan LLC) (a weak alkaline solution containing sodium alkyl ether sulfate, alkylamine oxide, etc.), diluted five times with water. The amount sprayed was 6 liters.

[0060] (3) Ozone fumigation process After cleaning with alkaline detergent, a weak alkaline deodorizer (aqueous solution of sodium sesquicarbonate) was sprayed over the entire room (floor, walls, ceiling, etc.) to neutralize the acidic components contained in the feces and urine. After spraying the deodorizer, the floor, walls, etc. were left damp, and a humidifier was installed and one circulator was operated in each room to maintain a temperature of 20-26°C and a humidity of 70% or higher. An ozone fumigation device, Panther-J (manufactured by Kai Corporation), was used to spray 7500 mg / hr of ozone for approximately 90 minutes, maintaining the ozone concentration at 5-15 ppm.

[0061] (4) Weak acid detergent spray cleaning process After the ozone fumigation process, the room was dried, and a weakly acidic detergent solution was sprayed onto the floor, walls, etc., followed by cleaning using a steam cleaner. The acidic detergent solution used was bathroom cleaner "Scale Cut P" (manufactured by Yokohama Oil & Fat Industries Co., Ltd.) (weakly acidic, containing citric acid, anionic surfactants, nonionic surfactants, etc.), diluted 10 times with water. The spray volume was 4 liters.

[0062] (5) Ozone fumigation process After the weak acid detergent spray cleaning process, a weak acid deodorizer (citric acid aqueous solution) was sprayed over the entire room (floor, walls, ceiling, etc.) to neutralize the alkaline components contained in the feces and urine. After spraying the deodorizer, while the floor and walls were still damp, a humidifier was installed, and one circulator was operated in each room to maintain a temperature of 20-26°C and a humidity of 70% or higher. An ozone fumigation device, Panther-J (manufactured by Kai Corporation), was used to spray 7500 mg / hr of ozone for approximately 90 minutes, maintaining the ozone concentration at 5-15 ppm, for ozone fumigation.

[0063] (6) Paint coating process The two-component water-based epoxy resin paint "Value painting VMP-1000" (manufactured by Value Creation Co., Ltd.) was mixed in a weight ratio of 1:1:1 with the main agent, an epoxy resin emulsion with a solid content of 65% by weight, the hardener, an emulsion of modified aliphatic polyamine with a solid content of 50% by weight, and water. The mixed paint was applied to the wooden foundation surface, wall surface, etc. at a solid content of 30 g / m. 2 The first coat was applied using a roller with a coating amount of 30g / m. After some of this first coat had permeated the painted area and dried for about an hour, the first coat was applied again with a solid amount of 30g / m. 2 A second coat was applied using a roller with the amount of paint used. After this second coat, it was left to dry and harden for about an hour. After this second coat, the odor was completely gone.

[0064] Odor status after deodorization work was completed After the deodorization work was completed, the odors were 0 ppm for hydrogen sulfide and 0 ppm for ammonia. In addition, there was no animal odor whatsoever.

[0065] Odor status one month after deodorization work was completed One month after the deodorizing treatment, the odor levels were 0 ppm for hydrogen sulfide and 0 ppm for ammonia. In addition, no animal odor was detected at all.

[0066] Example 2 Case 2 (Deodorizing treatment for a room where a cat was kept) The room to be deodorized has a total area of ​​150m2 It was a 4LDK (Japanese-style room and living / dining / kitchen) detached house (1st floor: Japanese-style room, LDK, 3 Western-style rooms on the 2nd floor) where 10 cats had been kept for 5 years. The cats were allowed to roam freely in all the rooms, causing a strong odor. The owner wanted to sell the property as it was, but the real estate company told him that it was unsellable in this condition, so he asked our company to carry out deodorizing work.

[0067] Condition at the start of deodorization work There were numerous stains of cat feces and urine in all the rooms and hallways, and there was a large amount of cat hair, urine, and feces on the bay windows and sashes, giving off an awful smell. There were urine stains on the closet, floor, and walls of the Japanese-style room. The cats urinate on the walls from the furniture and cat tower, so there were urine stains on the walls of each room and a wide area needed to be cleaned. Before the deodorizing treatment, the odors measured in every position in each room were 1-3 ppm for hydrogen sulfide and 2-4 ppm for ammonia.

[0068] (1) Dirt removal process We used tongs and spatulas to remove the dried feces and urine residue from the floor, and the feces on the bay windows and sashes. Then, because the smell was so strong, we removed all the wallpaper from throughout the house, and marked any traces of soaked plasterboard with a permanent marker so that they could be seen even after cleaning. We removed the six tatami mats from the Japanese-style room and all the cushioned flooring from the toilet and changing room, eliminating all sources of the smell.

[0069] (2) Alkaline detergent spray cleaning process An alkaline detergent solution made by diluting kitchen detergent "Joy" (manufactured by P&G Japan LLC) (containing sodium alkyl ether sulfate, alkylamine oxide, etc., and is weakly alkaline) five times with water was sprayed onto floors, walls, etc., and then a deck brush and sponge were used to clean away any adhering dirt or soaked urine. The amount sprayed was 14 liters.

[0070] To remove urine that had soaked into bay windows and plasterboard, an alkaline detergent solution of "Kitchen Bleach" (manufactured by Kaneyo Soap Co., Ltd.) (alkaline, containing sodium hypochlorite, alkylamine oxide, and sodium hydroxide) diluted twice with water was sprayed onto the surface, allowing it to soak in, and then the surface was cleaned using a steam cleaner. This was repeated until the urine odor disappeared from the steam. The amount sprayed was 8 liters.

[0071] (3) Ozone fumigation process After cleaning with alkaline detergent, a weak alkaline deodorizer (aqueous solution of sodium sesquicarbonate) was sprayed over the entire room (floor, walls, ceiling, etc.) to neutralize the acidic components contained in feces and urine. After spraying the deodorizer, the floors and walls were left damp, and one Panther-J ozone fumigation device (manufactured by Kai Corporation) was installed on each of the first and second floors. The temperature was maintained at 20-26°C, a humidifier was installed, and one circulator was operated in each room to maintain humidity above 70%. Ozone fumigation was performed by spraying 7500 mg / hr of ozone for approximately 90 minutes, maintaining the ozone concentration at 5-15 ppm.

[0072] (4) Weak acid detergent spray cleaning process After the ozone fumigation process, the room was dried, and a weakly acidic detergent solution was sprayed onto the floor, walls, bay windows, etc., and then cleaned using a steam cleaner. The acidic detergent solution used was bathroom cleaner "Scale Cut P" (manufactured by Yokohama Oil & Fat Industries Co., Ltd.) (a weakly acidic solution containing citric acid, anionic surfactants, nonionic surfactants, etc.), diluted 10 times with water. This was repeated several times until the odor disappeared from the steam from the steam cleaner. The spray volume was 5 liters.

[0073] (5) Ozone fumigation process After the weak acid detergent spray cleaning process, a weak acid deodorizer (citric acid aqueous solution) was sprayed over the entire room (floor, walls, ceiling, etc.) to neutralize the alkaline components contained in the feces and urine. After spraying the deodorizer, while the floor and walls were still damp, a humidifier was installed, and one circulator was operated in each room to maintain a temperature of 20-26°C and a humidity of 70% or higher. An ozone fumigation device, Panther-J (manufactured by Kai Corporation), was used to spray 7500 mg / hr of ozone for approximately 150 minutes, maintaining the ozone concentration at 10-15 ppm, for ozone fumigation.

[0074] (6) Paint coating process The two-component water-based epoxy resin paint "Value painting VMP-1000" (manufactured by Value Creation Co., Ltd.) was mixed in a weight ratio of 1:1:1 with the main agent, an epoxy resin emulsion with a solid content of 65% by weight, the hardener, an emulsion of modified aliphatic polyamine with a solid content of 50% by weight, and water. The mixed paint was applied to the wooden foundation surface, wall surface, etc. at a solid content of 30 g / m. 2 The first coat was applied using a roller with a coating amount of 30g / m. After some of this first coat had permeated the painted area and dried for about an hour, the first coat was applied again with a solid amount of 30g / m. 2 A second coat was applied using a roller with the amount of paint used. After this second coat, the paint was left to dry and harden for about an hour. After this second coat, the odor was completely eliminated. Furthermore, in areas where the urine odor was particularly strong, a third coat was applied with the same amount of paint as the second coat to completely block out the odor.

[0075] Odor status after deodorization work was completed After the deodorization treatment, the odors were 0 ppm for hydrogen sulfide and 0 ppm for ammonia. In addition, there was no animal odor at all.

[0076] Odor status one month after deodorization work was completed One month after the deodorizing treatment, the odor levels were 0 ppm for hydrogen sulfide and 0 ppm for ammonia. In addition, no animal odor was detected at all. [Industrial Applicability]

[0077] The deodorizing method of the present invention is highly effective in deodorizing rooms that have animal odors and can fully restore the room to its original state, so it is suitably used for deodorizing rooms that have animal odors.

Claims

1. Deodorizing method for rooms with animal odors, including the following steps: (1) a waste removal step of removing waste containing at least one of body fluids, feces, and urine; (2) a step of spraying and cleaning with an alkaline detergent; (3) an ozone fumigation step of spraying ozone into the room after step (2); (4) a step of spraying and cleaning with a weak acid detergent; (5) an ozone fumigation step of spraying ozone into the room after step (4); (6) After the ozone fumigation process (5), a coating process is performed in which water-based epoxy resin paint is applied twice to the areas where dirt has adhered or penetrated.

2. 2. The deodorizing method according to claim 1, wherein a deodorizing agent is sprayed during the ozone fumigation step (3).

3. 2. The deodorizing method according to claim 1, wherein a deodorizing agent is sprayed during the ozone fumigation step (5).

4. 2. The deodorizing method according to claim 1, wherein the ozone fumigation steps (3) and (5) are carried out by exposing the room to ozone at a temperature of 18 to 30°C, a humidity of 60 to 100%, and an ozone concentration of 1 to 30 ppm.

5. 2. The deodorizing method according to claim 1, wherein the water-based epoxy resin paint used in the coating step (6) is a two-component paint consisting of a base agent containing an epoxy resin and a curing agent.

6. 2. The deodorizing construction method according to claim 1, wherein in the coating step (6), a third coating of water-based epoxy resin paint is further applied.

7. In the coating step (6), the first and second coating amounts of the water-based epoxy resin paint are 10 to 60 g / m2 in terms of solid content, respectively. ２ The deodorizing method according to claim 1,