WO2020105227A1 - エアフィルター用濾材及びエアフィルター用濾材の製造方法 - Google Patents
エアフィルター用濾材及びエアフィルター用濾材の製造方法Info
- Publication number
- WO2020105227A1 WO2020105227A1 PCT/JP2019/030473 JP2019030473W WO2020105227A1 WO 2020105227 A1 WO2020105227 A1 WO 2020105227A1 JP 2019030473 W JP2019030473 W JP 2019030473W WO 2020105227 A1 WO2020105227 A1 WO 2020105227A1
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- WIPO (PCT)
- Prior art keywords
- amount
- antiallergenic
- filter
- carried
- air filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/50—Isolated enzymes; Isolated proteins
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P3/00—Fungicides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0457—Specific fire retardant or heat resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Definitions
- the present invention relates to a filter material for an air filter and a method for manufacturing the filter material for an air filter.
- a filter material for an air filter is attached to an air cleaner or a ventilation device in order to collect and inactivate these suspended harmful substances (for example, Patent Documents 1 and 2).
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a filter medium for an air filter that can exhibit excellent antibacterial properties. Another object of the present invention is to provide a method for producing a filter medium for air filters.
- the present invention provides a filter medium for an air filter, which comprises a base material, an antibacterial material containing an enzyme, an inorganic antiallergenic material, and a mold inhibitor, which are carried on the base material.
- the present invention may further include a colorant carried on the substrate.
- the first supporting step of supporting the colorant on the substrate the substrate supporting the colorant, an antibacterial material containing an enzyme, an inorganic anti-allergen material, and a mold inhibitor.
- a second supporting step of supporting the filter material is provided.
- the inorganic anti-allergen material preferably contains at least one selected from the group consisting of an inorganic solid acid and a metal inorganic salt.
- the colorant preferably contains an organic pigment.
- the enzyme preferably contains lysozyme.
- the supported amount of the anti-allergenic material is preferably less than 3 g / m 2 .
- the amount of the antiallergenic material supported is preferably 0.05 g / m 2 or more.
- the ratio of the amount of the antiallergenic material supported to the amount of the mold inhibitor carried is preferably less than 100.
- the mold inhibitor preferably contains at least one selected from the group consisting of propynyl iodide butylcarbamate, polyaminopropyl biguanide, 2-methyl-4-isothiazolin-3-one, and sodium dehydroacetate. ..
- the present invention it is possible to provide a filter medium for an air filter capable of exhibiting excellent antibacterial properties (even in a high temperature and high humidity environment). Moreover, according to this invention, the manufacturing method of the filter medium for air filters can be provided.
- 3 is a graph showing the relationship between the amount of antiallergenic material carried and the antiallergenic property.
- the filter material for an air filter of the present embodiment includes a base material, and an antibacterial material containing an enzyme, an inorganic anti-allergen material, and a mold inhibitor which are carried on the base material.
- an inorganic anti-allergen material should be used together with the antibacterial material containing the enzyme. According to the findings of the present inventors, it has been found that the antibacterial property is greatly reduced in some cases when an antibacterial material containing an enzyme and an organic antiallergenic material are used in combination. The reason for this is not clear, but probably the enzyme and the organic anti-allergen material react or interact with each other, and the enzyme is decomposed (deactivated) by the organic anti-allergen material. It is presumed that
- the material of the substrate may be organic fiber or inorganic fiber.
- the organic fiber include fibers of cellulose, polypropylene, polyethylene, polyester, polyamide and the like
- the inorganic fiber include fibers of glass, magnesium silicate, silica, alumina, aluminosilicate, zirconia and the like.
- the form of the base material may be non-woven fabric, filter paper, honeycomb, granular, net-like, and is not particularly limited.
- the base material may contain a flame retardant.
- a flame retardant pentabromodiphenyl ether, octabromodiphenyl ether, decabromodiphenyl ether, tetrabromobisphenol A, hexabromocyclododecane and other bromine compounds, chlorine compounds, ammonium phosphate, guanidine phosphate, melamine phosphate and other phosphate compounds.
- examples thereof include organic flame retardants, antimony compounds, inorganic flame retardants such as metal hydroxides such as aluminum hydroxide and magnesium hydroxide.
- Antibacterial materials include inorganic compounds that elute metal ions such as silver, copper and zinc, fine metal particles such as silver, copper and zinc, iodine compounds, phenols, quaternary ammonium salts, imidazoles, benzoic acids and peroxides. Examples include chemicals such as hydrogen, cresol, chlorhexidine, irgasan, aldehydes, and sorbic acid, enzymes, catechins, bamboo extracts, cypress extracts, wasabi extracts, mustard extract, and other natural component extracts. Among these, an enzyme can be used as an essential component because it has a bacteriolytic action.
- enzymes having a preferable lytic action As the enzyme, lysozyme, chitinase, protease, glucose oxidase, glucanase, endo- ⁇ -N-acetylglucosaminidase, endolysine and the like can be mentioned as enzymes having a preferable lytic action. These enzymes may be used alone or in combination of two or more. Further, these enzymes may be used in combination with other materials such as proteins (excluding enzymes) having a bactericidal action, peptides, or polysaccharides. These other materials may be used alone or in combination of two or more.
- proteins and peptides examples include protamine, lactoferrin, polylysine and the like.
- Enzymes especially lysozyme, efficiently glycosylate and chemically covalently bond with polysaccharides, and exert a remarkable antibacterial action.
- polysaccharides include glucan, dextran, mannan, galactomannan, laminaran, carrageenan, agarose and the like.
- Examples of combinations of enzymes and proteins or peptides include lysozyme and protamine, lysozyme and apolactoferrin, etc.
- Examples of combinations of enzymes and polysaccharides include lysozyme and glucan, lysozyme and galactomannan, and the like.
- inorganic antiallergenic material examples include inorganic solid acids, metal inorganic salts, and the like, and more specifically, inorganic solid acids such as zirconium phosphate, titanium phosphate, and magnesium silicate; zinc salts, zirconium salts. , Aluminum salts, alkaline earth metal salts, rare earth salts and other metal inorganic salts. Among these, zirconium phosphate having a layered crystal structure (layered zirconium phosphate) is preferable.
- the antibacterial material and the inorganic anti-allergen material By combining the antibacterial material and the inorganic anti-allergen material, it is possible to suppress the deterioration of the antibacterial property especially in a high temperature and high humidity environment. The reason for this is not clear, but it is presumed that it is because the antibacterial material and the inorganic antiallergenic material interact with each other to improve stability and durability.
- fungicide examples include organic iodine compounds, organic nitrogen compounds, organic nitrogen halogen compounds, organic sulfur compounds, organic acid esters, organic iodine-based imidazole compounds, benzazole compounds, and pyrone-based compounds. More specific examples of the fungicide include propynyl iodobutylcarbamate, polyaminopropyl biguanide, 2-methyl-4-isothiazolin-3-one, sodium dehydroacetate and the like.
- the antibacterial material and the fungicide By combining the antibacterial material and the fungicide, it is possible to suppress the deterioration of the antibacterial property especially in high temperature and high humidity environments. The reason for this is not clear, but it is presumed that the antibacterial material and the fungicide interact with each other to improve stability and durability.
- the base material may carry materials other than the above. Examples of such materials include colorants.
- pigments and dyes can be mentioned.
- the pigment include azo-based, polyazo-based, anthraquinone-based, quinacridone-based, isoindoline-based, isoindolinone-based, phthalocyanine-based, perylene-based, DPP-based, fluorescent pigments and other organic pigments, carbon black, synthetic silica, chromium oxide, Inorganic pigments such as iron oxide, titanium oxide, calcined pigments and zinc sulfide can be mentioned.
- the dye include alcohol-soluble dyes, oil-soluble dyes, fluorescent dyes and light-collecting dyes.
- organic pigments include organic pigments, oil-soluble dyes, fluorescent dyes and the like.
- organic pigments are mentioned as suitable colorants, and specifically, metal phthalocyanine dyes, metal naphthalocyanine dyes, metal porphyrin dyes, metal azaporphyrin dyes, bipyridyl metal complexes, terpyridyl metal complexes. , Phenanthroline metal complex, bicinchoninic acid metal complex, azo metal complex, quinolinol metal complex and the like.
- the supported amount of the antibacterial material is preferably 0.01 to 1 g / m 2 . Thereby, good antibacterial property can be maintained. From this viewpoint, the supported amount is more preferably 0.025 to 0.6 g / m 2 , and further preferably 0.05 to 0.4 g / m 2 .
- the supported amount of the anti-allergenic material is preferably less than 3 g / m 2 .
- the antiallergenic and antifungal properties may decrease due to the interaction.
- the amount is in the above range, the antiallergen property and the antifungal property can be better maintained.
- the supported amount is 2 g / m 2 or less, further preferably 1.5 g / m 2 or less, it is highly preferably 1 g / m 2 or less.
- the amount of the antiallergenic material supported is preferably 0.05 g / m 2 or more. Thereby, the antiallergenicity can be better maintained. From this viewpoint, the supported amount is more preferably 0.075 g / m 2 or more, further preferably 0.1 g / m 2 or more.
- the amount of the mold inhibitor carried is preferably 0.001 to 1 g / m 2 . This makes it possible to maintain good antifungal properties. From this viewpoint, the supported amount is more preferably 0.005 to 0.5 g / m 2 , and further preferably 0.01 to 0.1 g / m 2 .
- the ratio of the amount of the antiallergenic material carried to the amount of the mold inhibitor carried is preferably less than 100. This makes it possible to maintain good anti-allergen and antifungal properties. Further, when the antifungal agent and the anti-allergen material are used together, the ratio of the carried amount is less than 100, and thus the anti-allergen property can be further improved as compared with the case of using only the anti-allergen material. it can. The reason for this is not clear, but it is presumed that the antifungal agent activates the antiallergenic material. From the above viewpoint, the ratio of the carried amount is more preferably 75 or less, and further preferably 50 or less. The lower limit of the ratio of the carried amount can be set to more than 0. The supported amount of the mold inhibitor and the supported amount of the antiallergenic material may be appropriately adjusted according to the ratio of the supported amounts.
- the present inventors in the air filter media, by using a mold inhibitor and an anti-allergen material in combination, to further improve the anti-allergen property compared to the case of using only the anti-allergen material I have found that there are times when I can. This is particularly remarkable when the amount of the antiallergenic material carried is small. That is, a substrate, a method for improving the anti-allergenicity of a filter medium for an air filter, which comprises at least an inorganic anti-allergenic material supported on the substrate, and a mold inhibitor, which comprises the anti-allergenic material. It can be said that a method for improving the antiallergenicity has been found in which the supported amount is less than 3 g / m 2 and the ratio of the supported amounts is less than 100.
- the carried amount of the colorant is preferably 0.01 to 10 g / m 2 . This allows the substrate to be colored appropriately. From this viewpoint, the supported amount is more preferably 0.03 to 5 g / m 2 , and further preferably 0.05 to 1 g / m 2 .
- the method for producing a filter medium for an air filter is, for example, an antibacterial material containing an enzyme, an inorganic antiallergenic material, a mold inhibitor, other materials as necessary, and a treatment containing a liquid component
- a treatment liquid preparation step of preparing the liquid, a contact step of bringing the prepared treatment liquid into contact with the base material, and a drying step of drying the base material to which the treatment liquid adheres can be provided.
- an antibacterial material containing an enzyme, an inorganic antiallergenic material, and a mold inhibitor are mixed with the liquid component.
- the liquid component may be a water-based component, a non-water-based component such as alcohol, acetone, hexane, etc., or a mixed system component thereof. However, from the viewpoint of dispersibility of each material, it is preferable that it is an aqueous component.
- the amount of the antibacterial material or the like added to the liquid component may be appropriately adjusted so that the amount supported on the substrate is a desired amount.
- the obtained treatment liquid is brought into contact with the base material using a dip method, a spray method, a gravure printing method, or the like. Which method is used can be appropriately selected according to the material, thickness, surface wettability of the target substrate.
- the base material to which the treatment liquid is attached is dried at 100 to 140 ° C to remove liquid components from the treatment liquid.
- a multi-cylinder dryer or the like can be used for drying.
- the method for producing a filter medium for an air filter includes a first supporting step of supporting a colorant on a base material, an antibacterial material containing an enzyme and an inorganic antibacterial material on the base material supporting the colorant. A second supporting step of supporting an allergenic material and a mold inhibitor.
- the coloring agent and the antibacterial material containing the enzyme are supported on the base material in separate supporting steps. According to the findings of the present inventors, it was found that when a colorant and an antibacterial material containing an enzyme are supported in a single supporting step, the antibacterial property is significantly reduced in a high temperature and high humidity environment. The reason for this is not clear, but it is presumed that the colorant reacts with the enzyme when the treatment liquid is prepared or when the treatment liquid is dried, and the enzyme is decomposed (deactivated) by the colorant. To be done.
- the first supporting step is more specifically a first treatment liquid preparation step of preparing a first treatment liquid containing a colorant, a binder resin and a liquid component, and the prepared first treatment liquid as a substrate. And a first drying step of drying the substrate to which the first treatment liquid is attached.
- the binder resin is not particularly limited, and examples thereof include acrylic resin, urethane resin, vinyl acetate resin, SBR resin, epoxy resin, polyvinyl alcohol resin and the like.
- the second supporting step more specifically, an antibacterial material containing an enzyme, an inorganic anti-allergen material, a mold inhibitor, other materials as necessary, and a second treatment liquid containing a liquid component.
- Second treatment liquid preparation step to prepare, the second treatment liquid prepared, the second contact step of contacting the substrate supporting the colorant through the first supporting step, the second treatment liquid And a second drying step of drying the attached substrate.
- the liquid component may be a water-based component, a non-water-based component such as alcohol, acetone, hexane, etc., or a mixed system component thereof. However, from the viewpoint of dispersibility of each material, it is preferable that it is an aqueous component.
- the amount of the antibacterial material or the like added to the liquid component may be appropriately adjusted so that the amount supported on the substrate is a desired amount.
- the contacting step and the drying step may be performed in the same manner as when the coloring agent is not used.
- Example 1 Antibacterial test> (Example 1) FASTOGEN Green G-58 (manufactured by DIC Corporation) as a colorant (pigment), an acrylic binder, and water were mixed to prepare a mixed liquid. A polyester nonwoven fabric having a basis weight of 200 g / m 2 and a thickness of 1 mm was impregnated with the mixed solution, suction-dehydrated and dried at 120 ° C. in a multi-cylinder dryer. Thereby, a colored polyester nonwoven fabric was obtained.
- an enzyme antibacterial agent liquid containing 1% by mass of lysozyme as an antibacterial material, a mold inhibitor solution containing 0.02% by mass of propynyl butylcarbamate iodide as a mold inhibitor, and an inorganic antiallergenic material A zirconium phosphate powder and water were mixed to prepare a mixed solution.
- the mixed liquid was impregnated into the colored polyester nonwoven fabric obtained above, then suction-dewatered and dried with a multi-cylinder dryer at 120 ° C. This obtained the filter medium.
- Table 1 shows the amount of each component supported on the filter medium after drying. Supported amount of each component, the binder 5 g / m 2, the pigment 0.1 g / m 2, lysozyme 0.1 g / m 2, iodine butyl carbamate of propynyl 0.01 g / m 2, with zirconium phosphate 2 g / m 2 there were.
- Example 2 A filter medium was obtained in substantially the same manner as in Example 1 except that the inorganic antiallergenic material was not used.
- Example 3 An uncolored polyester non-woven fabric was used in place of the colored polyester non-woven fabric, no mold inhibitor was used, and an organic anti-allergen material was used instead of the inorganic anti-allergen zirconium phosphate powder.
- a filter medium was obtained in substantially the same manner as in Example 1 except that a certain polyparavinylphenol (product name: Marca Linker M, manufactured by Maruzen Petrochemical Co., Ltd.) was used.
- Example 4 A filter medium was obtained in substantially the same manner as in Example 1 except that polyparavinylphenol which was an organic anti-allergen material was used in place of zirconium phosphate powder which was an inorganic anti-allergen material. ..
- a filter medium was obtained in substantially the same manner as in Example 1 except that an uncolored polyester nonwoven fabric was used instead of the colored polyester nonwoven fabric.
- the bacterial gas phase drop test method was adopted. Specifically, it was prepared by culturing in a heart infusion liquid medium, centrifuging and washing to prepare M. An aqueous solution of luteus cells (concentration: 10 5 to 10 7 CFU / filter) was prepared. 0.3 mL of this was dropped on all the required number of filter media to be used for evaluation, and then naturally left in the biosafety cabinet for a predetermined time (untreated filter media). Then, using a vibration mixer, the bacteria on the filter medium were extracted into the phosphate buffer solution.
- the extracted stock solution and the diluted solution were transplanted to Trimptosoya agar solid medium and cultured at 30 ° C. for 48 hours, and the number of colonies was counted to calculate the number of surviving bacteria. In addition, the removal rate of bacteria was calculated as an index of antibacterial properties.
- the results (untreated) are shown in Table 1.
- Example 2 Antiallergenicity test> A filter material for an air filter was produced in the same manner as in Example 1 except that the amount of the inorganic anti-allergen material supported was changed as shown in Table 2.
- a filter medium for air filters was produced in the same manner as in Comparative Example 1 except that the amount of the inorganic anti-allergen material carried was changed as shown in Table 3.
- Anti-allergen test An area of 25 cm 2 was randomly cut from the obtained filter material, and this was used as a test piece. This test piece was immersed in a 13 ng / ml solution of Cryj1 (cedar pollen allergen) as an allergen, and then taken out. Four hours after the removal, the degree of reduction rate of the allergen (Cryj1) adhering to the filter medium was measured by enzyme-linked immunosorbent assay (ELISA method). The outline of the test method is described below. (1) Allergen measurement method (ELISA method) A primary antibody was immobilized on each well of a 96-well microplate to capture allergen. Next, a pre-labeled secondary antibody was reacted, and the enzyme and the substrate were reacted in that order.
- Allergen measurement method ELISA method
- Reduction rate (%) (BA) / B ⁇ 100 A: Allergen concentration in allergen solution after sample reaction B: Allergen concentration in allergen solution of initial solution
- Fig. 1 is a graph showing the relationship between the amount of antiallergenic material carried and the antiallergenic property. That is, it is a graph of the results of Tables 2 and 3. From FIG. 1, it is understood that the behavior of antiallergenicity differs depending on the presence or absence of the mold inhibitor. In particular, in a region where the amount of the antiallergenic material carried is small, by using the antifungal agent and the antiallergenic material together, it is possible to further improve the antiallergenicity as compared to the case of using only the antiallergenic material. You can see what was done.
- the present invention can be effectively used as a filter medium for an air filter for collecting and inactivating bacteria, molds, allergens, etc. floating in the air in hospitals, factories (pharmaceuticals and foods), cabins, households, etc. it can.
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Abstract
Description
本実施形態のエアフィルター用濾材は、基材と、該基材に担持された、酵素を含む抗菌性素材、無機系の抗アレルゲン性素材、及びカビ抑制剤と、を備える。
基材の材質は有機繊維であっても無機繊維であってもよい。有機繊維としては、セルロース、ポリプロピレン、ポリエチレン、ポリエステル、ポリアミド等の繊維が挙げられ、無機繊維としては、ガラス、ケイ酸マグネシウム、シリカ、アルミナ、アルミノシリケート、ジルコニア等の繊維が挙げられる。基材の形態としては、不織布状、濾紙状、ハニカム状、粒状、網状などを採用することができ、特に制限はない。
抗菌性素材としては、銀、銅、亜鉛等の金属イオンを溶出する無機化合物、銀、銅、亜鉛等の金属微粒子、ヨウ素化合物、フェノール類、第4アンモニウム塩、イミダゾール類、安息香酸類、過酸化水素、クレゾール、クロルヘキシジン、イルガサン、アルデヒド類、ソルビン酸等の薬剤、酵素、カテキン類、竹抽出物、ヒノキ抽出物、わさび抽出物、からし抽出物等の天然成分抽出物などが挙げられる。これらの中でも、溶菌作用を有することから酵素を必須として用いることができる。
無機系の抗アレルゲン性素材としては、無機固体酸、金属無機塩等が挙げられ、より具体的には、リン酸ジルコニウム、リン酸チタニウム、ケイ酸マグネシウム等の無機固体酸;亜鉛塩、ジルコニウム塩、アルミニウム塩、アルカリ土類金属塩、希土類塩等の金属無機塩などが挙げられる。これらの中でも、結晶系が層状構造を持つリン酸ジルコニウム(層状リン酸ジルコニウム)が好ましい。
カビ抑制剤としては、有機ヨウ素化合物、有機窒素化合物、有機窒素ハロゲン化合物、有機硫黄化合物、有機酸エステル類、有機ヨウ素系イミダゾール化合物、ベンザゾール化合物、ピロン系化合物等が挙げられる。カビ抑制剤としては、より具体的には、ブチルカルバミン酸ヨウ化プロピニル、ポリアミノプロピルビグアナイド、2-メチル-4-イソチアゾリン-3-オン、デヒドロ酢酸ナトリウム等が挙げられる。
基材は、上記以外の素材を担持していてもよい。そのような素材としては着色剤等が挙げられる。
抗菌性素材の担持量は、0.01~1g/m2であることが好ましい。これにより、抗菌性を良好に保つことができる。この観点から、担持量は0.025~0.6g/m2であることがより好ましく、0.05~0.4g/m2であることがさらに好ましい。
着色剤を用いない場合、エアフィルター用濾材の製造方法は、例えば、酵素を含む抗菌性素材、無機系の抗アレルゲン性素材、カビ抑制剤、必要に応じその他の素材、及び液状成分を含む処理液を調製する処理液調製工程と、調製した処理液を基材に接触させる接触工程と、処理液が付着した基材を乾燥する乾燥工程と、を備えることができる。
(実施例1)
着色剤(顔料)としてFASTOGEN GreenG-58(DIC株式会社製)と、アクリルバインダーと、水と、を混合し、混合液を調製した。当該混合液を、目付200g/m2、厚み1mmからなるポリエステル不織布に含浸させ、その後吸引脱水して、120℃の多筒式ドライヤーで乾燥した。これにより、着色ポリエステル不織布を得た。
カビ抑制剤を用いなかったこと以外は、実質的に実施例1と同様にして濾材を得た。
無機系の抗アレルゲン性素材を用いなかったこと以外は、実質的に実施例1と同様にして濾材を得た。
着色ポリエステル不織布に代えて未着色のポリエステル不織布を用いたこと、カビ抑制剤を用いなかったこと、及び無機系の抗アレルゲン性素材であるリン酸ジルコニウム粉末に代えて有機系の抗アレルゲン性素材であるポリパラビニルフェノール(製品名:マルカリンカーM、丸善石油化学株式会社製)を用いたこと以外は、実質的に実施例1と同様にして濾材を得た。
無機系の抗アレルゲン性素材であるリン酸ジルコニウム粉末に代えて有機系の抗アレルゲン性素材であるポリパラビニルフェノールを用いたこと以外は、実質的に実施例1と同様にして濾材を得た。
FASTOGEN GreenG-58(DIC株式会社製)、アクリルバインダー、リゾチームを1質量%含む酵素抗菌剤液、ブチルカルバミン酸ヨウ化プロピニルを0.02質量%含むカビ抑制剤液、リン酸ジルコニウム粉末、及び水を混合し、混合液を調製した。当該混合液を、目付200g/m2、厚み1mmからなるポリエステル不織布に含浸させ、その後吸引脱水して、120℃の多筒式ドライヤーで乾燥した。これにより濾材を得た。
着色ポリエステル不織布に代えて未着色のポリエステル不織布を用いたこと以外は、実質的に実施例1と同様にして濾材を得た。
(抗菌性試験)
抗菌性試験として細菌気相液滴下試験方法を採用した。具体的には、ハートインフュージョン液体培地で培養し、遠心分離・洗浄して調製したM.luteus菌体水溶液(濃度:105~107 CFU/filter)を準備した。これを、評価に供する必要枚数すべての濾材上に0.3mL滴下した後、バイオセフティキャビネット内で所定時間自然放置した(未処理濾材)。その後、振動ミキサーを用いて、濾材上の菌をリン酸緩衝溶液中に抽出した。抽出した原液及び希釈液をトリンプトソーヤ寒天固体培地に移植し、30℃×48時間培養後、コロニー数を計測し生存菌数を算出した。また、抗菌性の指標として菌の除去率を算出した。結果(未処理)を表1に示す。
無機系抗アレルゲン性素材の担持量を表2に示すように変更したこと以外は、実施例1と同様にしてエアフィルター用濾材を作製した。
得られた濾材からランダムに面積25cm2をカッティングし、これを試験片とした。この試験片を、アレルゲンとしてCryj1(スギ花粉アレルゲン)の13ng/mlの溶液に浸した後、取り出した。取り出してから4時間経過後に、濾材に付着するアレルゲン(Cryj1)の低減率の程度を、酵素免疫測定法(ELISA法)により測定した。試験法の概要を以下に説明する。
(1)アレルゲン測定法(ELISA法)
96穴マイクロプレートの各ウェルに一次抗体を固相し、アレルゲンを捕捉させた。次に予め標識化した2次抗体を反応させ、酵素、基質を順に反応させた。発色した各ウェルの吸光度を測定し、標準曲線から検体の抗原量を求めた。
(2)低減率算出方法
試料を反応させたアレルゲン溶液のアレルゲン濃度を測定し、試料を反応させないアレルゲン溶液の濃度と比較した低減率を下記の式にて求めた。
低減率(%)=(B-A)/B×100
A:試料反応後のアレルゲン溶液中のアレルゲン濃度
B:初期溶液のアレルゲン溶液中のアレルゲン濃度
実験1と同様に実施した。
防カビ性試験として、JIS2911(2010)付属書Aプラスチック製品の試験方法Aを採用した。肉眼及び顕微鏡下でカビの発生が認められない場合を合格、確認できた場合を不合格と判定した。
Claims (15)
- 基材と、
該基材に担持された、酵素を含む抗菌性素材、無機系の抗アレルゲン性素材、及びカビ抑制剤と、
を備えるエアフィルター用濾材。 - 前記無機系の抗アレルゲン性素材が、無機固体酸及び金属無機塩からなる群より選択される少なくとも一種を含む、請求項1に記載のエアフィルター用濾材。
- 前記酵素がリゾチームを含む、請求項1又は2に記載のエアフィルター用濾材。
- 前記抗アレルゲン性素材の担持量が3g/m2未満である、請求項1~3のいずれか一項に記載のエアフィルター用濾材。
- 前記抗アレルゲン性素材の担持量が0.05g/m2以上である、請求項1~4のいずれか一項に記載のエアフィルター用濾材。
- 前記カビ抑制剤の担持量に対する前記抗アレルゲン性素材の担持量の比(抗アレルゲン性素材の担持量/カビ抑制剤の担持量)が100未満である、請求項1~5のいずれか一項に記載のエアフィルター用濾材。
- 前記カビ抑制剤が、ブチルカルバミン酸ヨウ化プロピニル、ポリアミノプロピルビグアナイド、2-メチル-4-イソチアゾリン-3-オン、及びデヒドロ酢酸ナトリウムからなる群より選択される少なくとも一種を含む、請求項1~6のいずれか一項に記載のエアフィルター用濾材。
- さらに基材に担持された着色剤を備える、請求項1~7のいずれか一項に記載のエアフィルター用濾材。
- 基材に着色剤を担持させる第一の担持工程と、
着色剤を担持した前記基材に、酵素を含む抗菌性素材、無機系の抗アレルゲン性素材、及びカビ抑制剤を担持させる第二の担持工程と、
を備える、エアフィルター用濾材の製造方法。 - 前記着色剤が有機顔料を含む、請求項9に記載の製造方法。
- 前記酵素がリゾチームを含む、請求項9又は10に記載の製造方法。
- 前記抗アレルゲン性素材の担持量が3g/m2未満である、請求項9~11のいずれか一項に記載の製造方法。
- 前記抗アレルゲン性素材の担持量が0.05g/m2以上である、請求項9~12のいずれか一項に記載の製造方法。
- 前記カビ抑制剤の担持量に対する前記抗アレルゲン性素材の担持量の比(抗アレルゲン性素材の担持量/カビ抑制剤の担持量)が100未満である、請求項9~13のいずれか一項に記載の製造方法。
- 前記カビ抑制剤が、ブチルカルバミン酸ヨウ化プロピニル、ポリアミノプロピルビグアナイド、2-メチル-4-イソチアゾリン-3-オン、及びデヒドロ酢酸ナトリウムからなる群より選択される少なくとも一種を含む、請求項9~14のいずれか一項に記載の製造方法。
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US20050201911A1 (en) * | 2004-03-10 | 2005-09-15 | Waseda University | Air purification system using antibody material and air purification filter using same |
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WO2012050156A1 (ja) * | 2010-10-14 | 2012-04-19 | 東亞合成株式会社 | 抗アレルゲン剤 |
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JP7492244B2 (ja) | 2020-04-09 | 2024-05-29 | 日揮ユニバーサル株式会社 | エアフィルター用濾材 |
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JP7205046B2 (ja) | 2023-01-17 |
MY195936A (en) | 2023-02-27 |
JPWO2020105227A1 (ja) | 2021-10-07 |
KR20210089751A (ko) | 2021-07-16 |
EP3885024A4 (en) | 2022-08-31 |
CA3120254A1 (en) | 2020-05-28 |
EP3885024A1 (en) | 2021-09-29 |
CN113056321A (zh) | 2021-06-29 |
US20210387121A1 (en) | 2021-12-16 |
CA3120254C (en) | 2023-01-10 |
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