WO2016098460A1 - マスク用消臭フィルター及び消臭マスク - Google Patents
マスク用消臭フィルター及び消臭マスク Download PDFInfo
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- WO2016098460A1 WO2016098460A1 PCT/JP2015/080368 JP2015080368W WO2016098460A1 WO 2016098460 A1 WO2016098460 A1 WO 2016098460A1 JP 2015080368 W JP2015080368 W JP 2015080368W WO 2016098460 A1 WO2016098460 A1 WO 2016098460A1
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- WIPO (PCT)
- Prior art keywords
- deodorant
- deodorizing
- mask
- nonwoven fabric
- filter
- Prior art date
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- 238000010998 test method Methods 0.000 description 1
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- QUBMWJKTLKIJNN-UHFFFAOYSA-B tin(4+);tetraphosphate Chemical compound [Sn+4].[Sn+4].[Sn+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QUBMWJKTLKIJNN-UHFFFAOYSA-B 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 0.000 description 1
- 150000003628 tricarboxylic acids Chemical class 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- 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
- A61L9/01—Deodorant compositions
-
- 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
- A61L9/01—Deodorant compositions
- A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
- A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- 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
-
- 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
- A61L2209/22—Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning
Definitions
- the present invention relates to a deodorizing filter for a mask and a deodorizing mask using the same.
- a mask for malodorous gas generally contains a deodorizing agent that adsorbs malodorous components, for example, a deodorizing fiber layer in the form of a sheet in which a fiber having a deodorizing agent bonded to the surface or a deodorizing agent is used.
- a deodorizing fiber layer in the form of a sheet of a part of which is exposed.
- Japanese Patent Application Laid-Open No. 2011-125596 describes a mask filter using an activated carbon sheet as a filter.
- one or more metals selected from Fe, Mn, Al, Zn and Cu are allowed to coexist with a reaction product of the metal and oxypolybasic acid.
- a deodorizing mask in which a breathable material is attached to the mask ventilation part is described.
- JP-A-5-115572 discloses a mask in which particles of a specific calcium phosphate compound are supported on a sheet-like organic polymer substance, and one or more mask filter materials having a large number of micro vents are laminated.
- Japanese Patent Application Laid-Open No. 2009-201634 discloses a mask formed by laminating a first nonwoven fabric using a calcium phosphate-carrying fiber and a second nonwoven fabric using a copper-carrying nonwoven fabric. Has been.
- the chemisorption deodorant captures the odor by the reaction and thus has the effect of deodorizing in a short time.
- the property of malodor targeted by the mask is gas, and the contact opportunity between the deodorant and the malodorous gas is instantaneous.
- the nonwoven fabric carrying the deodorant is also breathable, there is always a malodorous gas that passes through the non-contacting deodorant in the nonwoven fabric, so a mask that deodorizes to the extent that almost no odor is felt has been realized. Absent.
- the demand for comfort has increased, and a mask having high deodorizing performance that efficiently adsorbs malodorous gas and does not cause discomfort has been demanded.
- the activated carbon sheet as described in JP-A-2011-125596 has high air permeability, but activated carbon is a physical adsorption type deodorant, and the desorption of malodorous components is reversible and the separation speed is fast. A sufficient deodorizing effect cannot be obtained, and it is not sufficient as a filter application for adsorbing malodorous components. Further, there is a problem that the gas containing malodorous components is re-released by continuous use.
- the deodorizing material described in Japanese Utility Model Publication No. 5-33743 does not provide a sufficient deodorizing effect, and since it does not use a binder, it is difficult to dispose a large amount in the ventilation section, and the deodorant is unevenly distributed. It may decrease.
- Japanese Patent Application Laid-Open No. 5-115572 or Japanese Patent Application Laid-Open No. 2009-201634 describes that a plurality of deodorizing filters are stacked, but the deodorizing performance with respect to malodorous gas is still insufficient, The decrease in air permeability due to the lamination of the filters was also great.
- fiber products such as deodorizing filters and deodorizing masks are generally packaged (accommodated) in bags, boxes, etc. made of paper, resin film, etc. after production, but with a binder (binder).
- a binder binder
- the present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide a deodorizing filter that is excellent in air permeability and excellent in deodorizing performance against unpleasant odor gas.
- the present invention has no unpleasant odor in the deodorizing filter and the deodorizing mask itself, and can be used comfortably with almost no unpleasant odor and discoloration even when stored in a sealed environment.
- An object is to provide a deodorizing filter and a deodorizing mask.
- the present invention comprises two or more deodorant fiber layers containing fibers and a chemisorption deodorant, wherein the deodorant fiber layer contains polyethylene resin fibers, and the thickness of each deodorant fiber layer is 0.
- the deodorizing filter for a mask is characterized in that the deodorizing fiber layer has a basis weight of 20 to 45 g / m 2 .
- the deodorizing mask according to the present invention includes the deodorizing filter for a mask and a filter other than the deodorizing filter which are stacked.
- a substance causing bad odor is referred to as “bad odor component”, and a gas containing the bad odor component is referred to as “bad odor gas”.
- the unit “ppm” relating to the gas concentration is “volume ppm”.
- the “air permeability” is an air permeability measured by a Frazier type method according to JIS L1096.
- the deodorizing filter for a mask of the present invention has sufficient air permeability from one side to the other side, and has excellent deodorizing performance against unpleasant odor gas. Therefore, the malodorous component in the atmosphere can be reduced by using it as a filter that adsorbs the malodorous component contained in the malodorous gas such as excretion odor, spoilage odor and tobacco odor.
- the deodorizing filter for the mask of the present invention and the deodorizing mask using the mask itself have no unpleasant odor, so even when stored in a sealed environment, the unpleasant odor hardly occurs, Since discoloration is also suppressed, it can be used comfortably.
- the deodorant mask of the present invention is a place where malodorous gas is generated (medical site, nursing site, excretion site, sewage treatment plant, waste disposal plant (incineration plant), fertilizer plant, chemical plant, livestock farm, fishing port, animal-related facilities. Etc.).
- the deodorizing filter for masks is equipped with two or more deodorizing fiber layers containing a fiber and a chemisorption type deodorizing agent, and sandwiches the deodorizing fiber layer between one side of the filter.
- the deodorizing filter has air permeability on the other side.
- the deodorizing filter of the present invention can be used by adapting to the desired size and shape (planar structure, three-dimensional structure such as pleats).
- the deodorizing fiber layer constituting the mask deodorizing filter of the present invention is preferably a composite fiber embedded in the base surface of the fiber so that the chemisorption deodorant is exposed, and the chemisorption type
- the deodorizer is a fiber assembly containing at least one selected from composite fibers bonded to the surface of the fiber through an adhesive layer.
- the average diameter of fibers such as composite fibers contained in the fiber assembly is preferably 5 to 30 ⁇ m, more preferably 10 to 25 ⁇ m.
- the substrate constituting the deodorizing fiber layer and the deodorizing filter may be made of either woven fabric or non-woven fabric, but the desired thickness can be easily set and the manufacturing cost is low. Since it is easy to control the air permeability, it is preferably made of a nonwoven fabric.
- the resin constituting the fibers contained in the nonwoven fabric As the resin constituting the fibers contained in the nonwoven fabric, sufficient adhesion and breathability with the chemisorption deodorant can be obtained, and an unpleasant odor does not occur in the deodorizing filter itself. is there.
- other resins include polypropylene, polyester, polyvinyl chloride, polyacrylic acid, polyamide, polyvinyl alcohol, polyurethane, polyvinyl ester, polymethacrylic acid ester, and rayon.
- the content of the polyethylene resin is preferably 10 to 100% by mass, more preferably 20 to 90% by mass with respect to the total resin. More preferably, it is 30 to 80% by mass.
- the nonwoven fabric is preferably a nonwoven fabric entangled by a needle punch method or a hydroentanglement method, a nonwoven fabric manufactured by a thermal bond method, or a nonwoven fabric manufactured by a spunbond method.
- the deodorant for malodorous gas other than the type that adsorbs malodorous components by chemical adsorption or forms a chemical bond with the malodorous components, such as activated carbon, like the chemisorption type deodorant in the present invention.
- a type that adsorbs malodorous components by physical adsorption and a type that decomposes malodorous components upon contact, such as a photocatalyst are common.
- a filter that allows malodorous gas to pass through it is necessary to adsorb malodorous components within a short period of time during which the malodorous gas passes.
- the decomposition type that decomposes does not provide a sufficient deodorizing effect.
- the deodorant used in the deodorant fiber layer constituting the deodorant filter can adsorb malodorous components in a short time and exhibits a sufficient deodorizing effect when passing through the deodorant fiber layer.
- a chemisorption deodorant with a fast odor rate and a large deodorizing capacity is most suitable.
- the form of the chemical bond in the said chemisorption type deodorant is not specifically limited, It may depend on the functional group contained in a chemisorption type deodorant, the functional group contained in a malodor component, etc.
- malodorous components targeted by chemisorption deodorants include basic compounds such as ammonia and amines, acidic compounds such as acetic acid and isovaleric acid, aldehydes such as formaldehyde, acetaldehyde and nonenal, hydrogen sulfide, methyl And sulfur compounds such as mercaptans.
- chemisorption deodorants for these malodorous components include inorganic chemical adsorption deodorants and organic chemisorption deodorants.
- the inorganic chemisorption deodorant includes at least one atom selected from the group consisting of tetravalent metal phosphates, zeolites, amorphous composite oxides, Ag, Cu, Zn, and Mn.
- Examples include compounds containing seeds, zirconium compounds selected from the group consisting of hydrated zirconium oxide and zirconium oxide, hydrotalcite compounds, and amorphous active compounds.
- Examples of the organic chemical adsorption deodorant include amine compounds.
- an inorganic chemical adsorption type deodorant which is insoluble or hardly soluble in water is preferable.
- chemisorption deodorants may be used singly or in combination of two or more.
- a synergistic effect may be obtained by using a plurality of chemisorption deodorants having different deodorization targets (bad odor components).
- body odor such as sweat odor, including acetic acid, isovaleric acid, etc.
- basic gas chemisorption deodorant and acid gas chemistry are suitable.
- a combination of adsorptive deodorants is preferred.
- a combination of a chemical adsorption deodorant for basic gas, a chemical adsorption deodorant for acid gas, and a chemical adsorption deodorant for aldehyde gas is suitable.
- the ratio of the amount used is the deodorization performance such as the deodorization capacity and deodorization rate of the chemisorption deodorant used, and the gas in the target environment. It is preferable to select according to the concentration (concentration of malodorous component).
- the approximate mass ratio for obtaining a sufficient deodorizing effect is 20:80 to 80 : 20.
- the chemical adsorption type deodorant in the present invention and a physical adsorption type deodorant such as activated carbon can be used in combination.
- the deodorizing capacity means the amount (mL) of the standard malodorous component that can be deodorized by 1 g of the chemisorption deodorant. The larger this value, the longer the deodorizing effect in the deodorizing filter. Can be obtained.
- the deodorizing filter for a mask of the present invention comprises two or more deodorizing fiber layers
- the chemisorption deodorants contained in each deodorizing fiber layer may be the same or different. Good.
- the chemisorption deodorant contained in each deodorant fiber layer is preferably the same from the viewpoint of deodorization performance. Next, the chemisorption deodorant used in the present invention is shown.
- Tetravalent metal phosphate is preferably a compound represented by the following general formula (1). This compound is insoluble or hardly soluble in water and has an excellent deodorizing effect on basic gas.
- M is a tetravalent metal atom
- n is 0 or a positive integer.
- Examples of M in the general formula (1) include Zr, Hf, Ti, and Sn.
- tetravalent metal phosphate examples include zirconium phosphate (Zr (HPO 4 ) 2 .H 2 O), hafnium phosphate, titanium phosphate, tin phosphate, and the like. These compounds include crystalline and amorphous compounds having various crystal systems such as ⁇ -type crystals, ⁇ -type crystals, and ⁇ -type crystals, and any of them can be preferably used.
- the amine compound is preferably a hydrazine compound or an aminoguanidine salt. Since these compounds react with the aldehyde-based gas, they have an excellent deodorizing effect on the aldehyde-based gas.
- hydrazine compounds include adipic acid dihydrazide, carbohydrazide, succinic acid dihydrazide, and oxalic acid dihydrazide.
- aminoguanidine salts include aminoguanidine hydrochloride, aminoguanidine sulfate, and aminoguanidine bicarbonate. . These amine compounds can constitute a deodorant supported on a carrier.
- the carrier in this case is preferably an inorganic compound, and specific examples thereof include zeolite, amorphous composite oxide, silica gel and the like which will be described later. Since both zeolite and amorphous composite oxide have a deodorizing effect on basic gas, they are effective against both aldehyde-based gas and basic gas when used as a carrier. is there.
- the zeolite is preferably a synthetic zeolite.
- the zeolite is insoluble or hardly soluble in water and has an excellent deodorizing effect on basic gas.
- the structure of the zeolite varies, but any known zeolite can be used. Examples of the structure include A type, X type, Y type, ⁇ type, ⁇ type, ZSM-5, and amorphous.
- Amorphous composite oxide is a compound other than the above-mentioned zeolite, preferably Al 2 O 3 , SiO 2 , MgO, CaO, SrO, BaO, ZnO, ZrO 2 , TiO. 2 , an amorphous composite oxide composed of at least two selected from the group consisting of WO 2 , CeO 2 , Li 2 O, Na 2 O, and K 2 O. This composite oxide is insoluble or hardly soluble in water and has an excellent deodorizing effect on basic gas.
- a composite containing at least one atom selected from the group consisting of Ag, Cu, Zn, and Mn is a composite that is insoluble or sparingly soluble in water. Excellent odor effect.
- This composite is composed of at least one atom selected from the group consisting of Ag, Cu, Zn and Mn, and at least one selected from the group consisting of compounds containing the atom, and another material. It is a composite material.
- the compound containing at least one atom of Ag, Cu, Zn and Mn is preferably a salt of an inorganic acid such as oxide, hydroxide, phosphoric acid or sulfuric acid, acetic acid, oxalic acid, acrylic acid or the like. It is a salt of an organic acid.
- the deodorant [5] at least one metal selected from the group consisting of Ag, Cu, Zn and Mn, or the above compound is supported on a carrier made of an inorganic compound as another material. It is also possible to use a composite that is insoluble in water.
- Preferred inorganic compounds as the carrier are silica, tetravalent metal phosphate, zeolite and the like. Since tetravalent metal phosphates and zeolites have a deodorizing effect on basic gases, when tetravalent metal phosphates and zeolites are used as carriers, sulfur-based gases and basic gases Valid for both.
- zirconium compound examples include hydrated zirconium oxide and zirconium oxide, and an amorphous compound is preferable. These compounds are insoluble or hardly soluble in water and have an excellent deodorizing effect on acidic gas.
- Hydrated zirconium oxide is a compound having the same meaning as zirconium oxyhydroxide, zirconium hydroxide, hydrous zirconium oxide and zirconium oxide hydrate.
- magnesium-aluminum hydrotalcite is particularly preferable because it has a better deodorizing effect on acidic gas.
- the hydrotalcite-based compound that is, a compound obtained by calcining a hydrotalcite compound at a temperature of about 500 ° C. or more and releasing carbonate groups and hydroxyl groups is also included in the hydrotalcite compound.
- Amorphous active oxide is a compound that does not contain the above-mentioned amorphous composite oxide, and is preferably insoluble or hardly soluble in water, and is an acid gas or sulfur. Excellent deodorizing effect on system gases.
- Specific examples of the amorphous active oxide include Al 2 O 3 , SiO 2 , MgO, CaO, SrO, BaO, ZnO, CuO, MnO, ZrO 2 , TiO 2 , WO 2 , and CeO 2. It is done.
- the surface-treated active oxide can also be used.
- the surface-treated product include an active oxide surface-treated with an organopolysiloxane, an active oxide whose surface is covered with an oxide or hydroxide of aluminum, silicon, zirconium or tin.
- the surface treatment with an organic material such as organopolysiloxane is preferable because the deodorizing performance is higher than the surface treatment with an inorganic material.
- the shape of the chemisorption deodorant in the present invention is not particularly limited.
- the size of the chemisorption deodorant when it is a granular material, the median diameter measured with a laser diffraction particle size distribution analyzer is preferably 0.05 to 100 ⁇ m, more preferably from the viewpoint of deodorization efficiency.
- the thickness is preferably 0.1 to 50 ⁇ m, more preferably 0.2 to 30 ⁇ m.
- the specific surface area is preferably 10 to 800 m 2 / g, more preferably 30 to 600 m. 2 / g.
- the specific surface area can be measured by the BET method calculated from the nitrogen adsorption amount.
- the content of the chemisorption deodorant per unit area is preferably large. However, as the content increases, the air permeability of the deodorizing filter decreases and the cost increases. Therefore, the content is usually determined in consideration of this.
- the content in the deodorizing fiber layer per chemical adsorption type deodorant is preferably 1 g / m 2 or more, more preferably 3 g / m 2 or more, and further preferably 5 g / m 2 or more. Moreover, it is preferable that it is 100 g / m ⁇ 2 > or less.
- the total content when two or more chemical adsorption deodorants are included is preferably 2 g / m 2 or more, more preferably 6 g / m 2 or more, and further preferably 10 g / m 2 or more. Moreover, it is preferable that it is 100 g / m ⁇ 2 > or less.
- a preferred embodiment of the deodorizing fiber layer that provides an excellent deodorizing effect is the content of the chemisorption deodorant when the mass of the fibers constituting the deodorizing fiber layer is 100 parts by mass. Is preferably 2 to 60 parts by mass, more preferably 5 to 55 parts by mass, and still more preferably 10 to 50 parts by mass.
- the configuration of the deodorant fiber layer may be a mode in which the chemisorption type deodorant is embedded in the surface of the fiber, and the fiber and the chemisorption type deodorant use a binder (binder) such as an emulsion.
- a binder such as an emulsion.
- the aspect which is joined may be sufficient.
- the binder may be natural resin, natural resin derivative, phenol resin, xylene resin, urea resin, melamine resin, ketone resin, coumarone / indene resin, petroleum resin, terpene resin, cyclized rubber, chlorinated rubber, alkyd Resin, polyamide resin, polyvinyl chloride resin, acrylic resin, vinyl chloride / vinyl acetate copolymer resin, polyester resin, polyvinyl acetate, polyvinyl alcohol, polyvinyl butyral, chlorinated polypropylene, styrene resin, epoxy resin, urethane resin, Examples thereof include cellulose derivatives, starch, polyacrylamide, polyalkylene oxide, and polyvinylpyrrolidone.
- polyester, polyvinyl alcohol, celluloses, starch Polyacrylamide, polyalkylene oxide and polyvinyl pyrrolidone are preferred, and polyester, polyvinyl alcohol and cellulose are more preferred. These polymers can be used alone or in combination of two or more.
- the polyester may be either an aromatic polyester or an aliphatic polyester, or a combination thereof.
- the polyester may be a saturated polyester or an unsaturated polyester.
- the polyester is preferably a saturated polyester comprising a polycondensate obtained by using an acid component and a hydroxy group-containing component, and includes —SO 3 H, —SO 3 Na, —SO 3 — , —COOH, —COO.
- Polyesters to which hydrophilic groups such as — , —OPO (OH) 2 , —OPO (OH) O 2 — are bonded may be used.
- the acid component examples include terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, 4,4′-diphenyldicarboxylic acid, trimellitic acid, trimesic acid, pyromellitic acid, benzoic acid, p-oxybenzoic acid, p- (Hydroxyethoxy) benzoic acid, succinic acid, adipic acid, azelaic acid, sebacic acid, glutaric acid, suberic acid, dodecanedicarboxylic acid, fumaric acid, maleic acid, itaconic acid, 1,4-cyclohexanedicarboxylic acid, 1,3- Cyclohexanedicarboxylic acid, cyclobutanetetracarboxylic acid, dimethylolpropionic acid, tricyclodecanedicarboxylic acid, tetrahydroterephthalic acid, tetrahydroorthophthalic acid,
- Examples of the acid component having a hydrophilic group include sodium 5-sulfonate sodium isophthalic acid, 5-sulfonic acid ammonium isophthalic acid, 4-sulfonic acid sodium isophthalic acid, 4-methylsulfonic acid ammonium isophthalic acid, and 2-sulfonic acid sodium salt.
- Examples thereof include sulfonate compounds such as terephthalic acid, potassium 5-sulfonate isophthalic acid, potassium 4-sulfonate isophthalic acid, and potassium 2-sulfonate terephthalic acid.
- hydroxy group-containing component examples include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, 1,3-propanediol, 2-methyl-1,3-propanediol, 1,4- Butanediol, 1,2-butanediol, 1,5-pentanediol, 2-methyl-1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, 2-ethyl-2-butyl-1,3 -Propanediol, 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 2,2,4-trimethyl-1,3-pentanediol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol , Trimethylo Propane, trimethylolethane,
- the polyester can be obtained by a known method such as a melt polymerization method, a solution polymerization method, or a solid phase polymerization method.
- the hydrophilic group can be introduced by a known method.
- —COO 2 — is introduced, for example, trimellitic anhydride, trimellitic acid, pyromellitic anhydride, pyromellitic acid, trimesic acid.
- the polyvinyl alcohol is usually a resin obtained using a vinyl ester such as vinyl formate, vinyl acetate, vinyl propionate, vinyl pivalate, etc., and was obtained by, for example, the following method (A) or (B). Resins, and resins having primary to tertiary amino groups or quaternary ammonium groups in the main chain or side chain of polyvinyl alcohol can be used.
- Examples of the ethylenically unsaturated monomer that can be used in the method (B) include ⁇ -olefins such as ethylene, propylene, isopropylene, butylene, isobutylene, pentylene, hexylene, cyclohexylene, cyclohexylethylene, and cyclohexylpropylene; Acrylic acid, methacrylic acid, (anhydrous) fumaric acid, (anhydrous) maleic acid, (anhydrous) itaconic acid, acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, trimethyl (3-acrylamide-3-dimethylpropyl) ammonium chloride, acrylamide -2-Methylpropanesulfonic acid and its sodium salt, ethyl vinyl ether, butyl vinyl ether, N-vinyl pyrrolidone, vinyl chloride, vinyl bromide, vinyl fluoride, vinylidene chloride, vinyl Flu
- celluloses examples include ethyl cellulose, cellulose acetate propionate, cellulose acetate butyrate, methyl cellulose, cellulose acetate, and cellulose butyrate.
- starch examples include modified starches such as oxidized starch, etherified starch and esterified starch.
- the polyacrylamide is obtained by copolymerization of acrylamide (or methacrylamide), at least one selected from a cationic monomer and an anionic monomer, and another monomer such as a crosslinking agent. can do.
- Polyalkylene oxides obtained by reacting polyethylene oxide, polypropylene oxide, ethylene oxide-propylene oxide copolymers, and these polyalkylene oxides with polyvalent carboxylic acids or anhydrides or lower alkyl esters thereof. And those obtained by reacting these polyalkylene oxides with diisocyanate.
- Polyvinylpyrrolidone is obtained by using a vinylpyrrolidone homopolymer such as N-vinyl-2-pyrrolidone or N-vinyl-4-pyrrolidone (ie, polyvinylpyrrolidone), vinylpyrrolidone and a vinyl monomer. And other copolymers.
- a vinylpyrrolidone homopolymer such as N-vinyl-2-pyrrolidone or N-vinyl-4-pyrrolidone (ie, polyvinylpyrrolidone), vinylpyrrolidone and a vinyl monomer. And other copolymers.
- vinyl monomers examples include fatty acid vinyl esters such as vinyl acetate, vinyl propionate, and vinyl lactate; vinyl ethers such as cyclohexyl vinyl ether, ethyl vinyl ether, hydroxyethyl vinyl ether, hydroxybutyl vinyl ether, and hydroxycyclohexyl vinyl ether; methyl acrylate , Methyl methacrylate, ethyl acrylate, ethyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, methacrylic acid Acrylic acid esters or methacrylic acid esters such as 3-hydroxypropyl; hydroxybutyl allyl ether, ethylene glycol monoallyl Allyl ethers such as ether and the like.
- vinyl ethers such as cyclohexyl vinyl ether, ethyl vinyl ether
- the content ratio of the chemisorption type deodorant to the resin solid content derived from the emulsion in the deodorant-containing processing liquid Although there is no particular limitation, the larger the binder ratio, the better the fixing power of the deodorant and the less the deodorant falling off. On the other hand, the smaller the ratio of the binder resin solid content, the easier the deodorant comes into contact with the malodorous gas and the better the deodorizing effect.
- the ratio of the binder (solid content) and the chemisorption deodorant is preferably 10 to 90, respectively, when the total of the binder (solid content) and the deodorant is 100% by mass.
- the range is 10% by mass and 10 to 90% by mass, and more preferably the range is 25 to 60% by mass and 40 to 75% by mass.
- a binder additive By adding a binder additive to the deodorant-containing processing liquid containing a chemisorption type deodorant, it is possible to achieve a composite function having an action other than the deodorizing performance, an improvement in processability, and the like.
- the additive include a dispersant, an antifoaming agent, a viscosity modifier, a pigment, a dye, a fragrance, a physical adsorption deodorant, an antibacterial agent, an antiviral agent, and an antiallergen agent.
- Additives should be added in an appropriate amount in consideration of the purpose, but the deodorizing effect of the chemisorption deodorant and the physical properties and mask processability of the deodorizing nonwoven fabric should not be affected. There is a need to.
- a general dispersion method such as inorganic powder can be applied.
- an additive such as a dispersant may be added to a polyester resin emulsion, and a chemisorption deodorant may be further added, followed by stirring and dispersing with a sand mill, a disper, a ball mill, or the like.
- the basis weight of the deodorant fiber layer is less than 20 g / m 2 , the air permeability of the deodorant fiber layer becomes too high, so the malodorous component in the malodorous gas does not come into contact with the chemisorption deodorant, Most of them pass through the deodorizing fiber layer, and the deodorizing effect is reduced.
- the basis weight exceeds 45 g / m 2 , the air permeability of the deodorant fiber layer is greatly reduced, and the gas does not flow smoothly from one side of the deodorizing filter to the other side.
- the deodorant fiber layer has a thickness of 0.15 to 0.4 mm and a basis weight of 20 to 45 g / m 2 , it has a high air permeability while a malodor component is a chemisorption deodorant. It is sufficiently adsorbed by the agent, and an excellent deodorizing performance against malodorous gas can be obtained.
- the chemisorption deodorant can be easily exposed on the nonwoven fabric surface, and the deodorizing performance can be improved.
- the deodorizing fiber layer provided in the mask deodorizing filter of the present invention preferably has 2 to 8 layers, more preferably 2 to 4 layers, still more preferably 2 or 3 layers, Two layers are particularly preferred.
- the deodorizing filter for a mask of the present invention can be produced by various methods, and examples thereof include the following methods. (1) Applying a deodorant-containing processing liquid containing a chemisorption deodorant and a binder to the entire woven fabric or non-woven fabric made of fiber that does not contain a chemisorption deodorant (immersion, spraying, padding, etc.) After that, it is dried to produce a deodorizing fiber layer by adhering a chemisorption type deodorant to the surface of the fiber constituting the woven or non-woven fabric, and laminating two or more layers to form a deodorizing filter for a mask. How to manufacture.
- the chemisorption type deodorant is exposed to a entanglement treatment (needle punch method, etc.), if necessary, using a woven or non-woven fabric made of a composite fiber embedded in the base surface of the fiber so that the chemisorption deodorant is exposed.
- a method for producing a deodorizing filter for a mask by producing a deodorizing fiber layer and laminating two or more layers.
- a chemisorption deodorant is obtained by heat treatment or chemical treatment in a state where the chemisorption deodorant is brought into contact with the woven fabric or non-woven fabric made of fiber not containing the chemisorption deodorant.
- the spreading method (1) is preferred, and the fiber is immersed in a deodorant-containing processing liquid containing a chemisorption deodorant and a binder to produce a deodorant fiber layer.
- a method of producing a deodorizing filter for a mask by laminating two or more layers is more preferable.
- the deodorizing mask of the present invention is a mask provided with two or more deodorizing fiber layers (deodorizing nonwoven fabric layers) containing fibers and a chemisorption deodorant. Moreover, it is preferable that the deodorizing mask of this invention is equipped with a dust-proof nonwoven fabric layer and another nonwoven fabric layer in addition to a deodorizing nonwoven fabric layer, and uses it so that the said dust-proof nonwoven fabric layer may be located in the face side.
- the dustproof nonwoven fabric layer and the other nonwoven fabric layers may be composed of a laminate of a plurality of nonwoven fabrics.
- another layer can also be provided between the deodorizing nonwoven fabric layer and a dust-proof nonwoven fabric layer in the range which does not affect the effect of this invention.
- the other layers are not particularly limited in configuration such as shape and material as long as they have air permeability, and may be a nonwoven fabric layer or a woven fabric layer. Preferably, it has a breathability higher than that of the deodorized nonwoven fabric layer.
- the deodorizing mask of the present invention preferably has a structure in which the deodorizing nonwoven fabric layer is adjacent to the dustproof nonwoven fabric layer. When the deodorant nonwoven fabric layer is disposed so as to be in contact with the dustproof nonwoven fabric layer, the effects of the present invention can be efficiently exhibited.
- the deodorizing filter for mask and the non-woven fabric for dust prevention of the present invention are bonded only to the peripheral part without bonding the ventilation part (usually the part surrounded by the peripheral part). It is preferable to do. That is, in order to prevent the non-woven fabric made of the multilayer body from being displaced, it can be fixed by a method such as heat fusion, bonding, sewing, or the like at the peripheral portion of the mask body that is not the ventilation portion. You may arrange
- the other nonwoven fabric is not particularly limited in the kind of the resin, but it is preferably equal to or more than that of the nonwoven fabric for deodorization and the nonwoven fabric for dust prevention, and more preferably has a breathability of 2 times or more.
- a water-repellent nonwoven fabric such as a polypropylene nonwoven fabric is preferably used on the outside air side, and a flexible rayon or polyolefin nonwoven fabric is preferably used on the face side.
- the deodorizing of the non-woven fabric layers 7 and 2 made of outside air side polypropylene (PP) from the outside air side to the face side of the deodorizing mask.
- the nonwoven fabric layer (deodorant fiber layer) 8, the dustproof nonwoven fabric layer 9, and the face side PP nonwoven fabric layer 10 are laminated in this order.
- the pleat 11 is provided in the deodorizing mask shown in FIG.
- the deodorant mask is a substrate comprising the following nonwoven fabric sheet, a deodorant-containing process containing the deodorizer, polyester binder resin and water shown in Table 1. After producing a deodorizing nonwoven fabric using the liquid, an omega pleated mask was manufactured using this deodorizing nonwoven fabric and other nonwoven fabrics.
- Nonwoven fabric sheet W1 A non-woven fabric containing polypropylene resin fibers and polyethylene resin fibers in a mass ratio of 1: 1 is manufactured by a thermal bond method. The basis weight is 20 g / m 2 .
- Nonwoven fabric sheet W2 Nonwoven fabric made of polyester resin fibers manufactured by the thermal bond method.
- the average particle diameter of the deodorant shown in Table 1 is a median diameter measured on a volume basis using a laser diffraction particle size distribution measuring device.
- the test method for calculating the deodorizing capacity of a deodorizer is as follows. 0.01 g of deodorant is put into a Tedlar bag having a capacity of about 4 L, and after sealing, ammonia (8000 ppm), methyl mercaptan (40 ppm), acetic acid (380 ppm) or acetaldehyde (2000 ppm) corresponding to 200 times the concentration of odor intensity 5 2 L of gas containing was encapsulated, and after 24 hours, the concentration of each malodorous component (residual gas component concentration) was measured with a gas detector tube, and the deodorizing capacity (mL / g) was obtained by the following equation.
- Deodorizing capacity [2000 (mL) ⁇ (initial malodorous gas component concentration (ppm) ⁇ residual gas component concentration (ppm)) ⁇ 10 ⁇ 6 ] /0.01 (g)
- Production Example 1 (Production of deodorant nonwoven fabric D1) Zirconium phosphate powder and CuO.SiO 2 composite oxide powder, so that zirconium phosphate is 4 parts, CuO.SiO 2 composite oxide is 4 parts, and polyester resin solids is 4 parts by weight, and A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder. Next, this deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 so that the spread amount of zirconium phosphate is 4 g / m 2 and the spread amount of the CuO ⁇ SiO 2 composite oxide is 4 g / m 2 .
- drying is performed at 130 ° C., and the deodorant nonwoven fabric D1 in which the deodorant is uniformly adhered to the entire other surface side from the one surface side of the nonwoven fabric sheet W1 is prepared.
- the air permeability was measured when 1 layer and 2 layers were laminated (see Table 3).
- Production Example 2 (Production of deodorant nonwoven fabric D2) Zirconium phosphate powder, and CuO.SiO 2 composite oxide powder so that the zirconium phosphate is 3 parts, the CuO.SiO 2 composite oxide is 3 parts, and the resin solid content of the polyester is 3 parts. And the deodorant containing processing liquid whose solid content concentration is 10% was prepared using the polyester-type binder. Next, the deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 so that the spread amount of zirconium phosphate is 3 g / m 2 and the spread amount of the CuO ⁇ SiO 2 composite oxide is 3 g / m 2 .
- the padding After uniformly applying the padding, it is dried at 130 ° C., and the deodorant nonwoven fabric D2 in which the deodorant is uniformly adhered from the one side to the other side of the nonwoven fabric sheet W1 is prepared.
- the air permeability at the time of laminating one layer and two layers was measured (see Table 3).
- Production Example 3 (Production of deodorant nonwoven fabric D3) Solid using aluminum silicate powder, hydrous zirconium oxide powder and polyester binder so that aluminum silicate is 4 parts, hydrous zirconium oxide is 3 parts, and polyester resin solids is 4 parts by weight.
- a deodorant-containing processing liquid having a partial concentration of 10% was prepared.
- this deodorant-containing processing liquid is uniformly padded on the nonwoven fabric sheet W1 so that the spread amount of aluminum silicate is 4 g / m 2 and the spread amount of hydrous zirconium oxide is 3 g / m 2. After that, it is dried at 130 ° C.
- Production Example 4 (Production of deodorant nonwoven fabric D4) Zirconium phosphate powder so that the mass ratio is 4 parts of zirconium phosphate, 4 parts of CuO ⁇ SiO 2 composite oxide, 3 parts of silica gel carrying 30% adipic acid dihydrazide, and 6 parts of resin solid content of polyester.
- Deodorant-containing processing liquid having a solid content concentration of 10% was prepared using CuO ⁇ SiO 2 composite oxide powder, silica gel powder carrying 30% adipic acid dihydrazide, and polyester binder.
- this deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 with a zirconium phosphate spreading amount of 4 g / m 2 , a CuO.SiO 2 composite oxide spreading amount of 4 g / m 2 , and adipic acid dihydrazide 30.
- the padding was uniformly applied so that the spread amount of the silica gel supported by 3% was 3 g / m 2, and then dried at 130 ° C., so that the deodorant was uniformly distributed from one side of the nonwoven fabric sheet W1 to the other side.
- the deodorized nonwoven fabric D4 adhered to the substrate was prepared, and the basis weight, thickness, and the air permeability when 1 layer and 2 layers were laminated were measured (see Table 3).
- Production Example 5 (Production of deodorant nonwoven fabric D5) Solid using aluminum silicate powder, active zinc oxide powder, and polyester binder so that aluminum silicate is 4 parts, active zinc oxide is 3 parts, and polyester resin solids is 4 parts by weight. A deodorant-containing processing liquid having a partial concentration of 10% was prepared. Next, this deodorant-containing processing liquid is uniformly dip-coated on the nonwoven fabric sheet W1 so that the spread amount of aluminum silicate is 4 g / m 2 and the spread amount of active zinc oxide is 3 g / m 2. After that, it is dried at 130 ° C.
- Production Example 7 (Production of deodorant nonwoven fabric D7) Solid content concentration using amorphous zeolite powder, hydrotalcite powder, and polyester binder so that the mass ratio of amorphous zeolite is 4 parts, hydrotalcite is 3 parts, and polyester resin solids is 4 parts A processing liquid containing 10% deodorant was prepared. Next, this deodorant-containing processing liquid was uniformly padded onto the nonwoven fabric sheet W1 so that the amorphous zeolite spread amount was 4 g / m 2 and the hydrotalcite spread amount was 3 g / m 2 .
- Production Example 8 (Production of deodorant nonwoven fabric D8) Zirconium phosphate powder, CuO ⁇ SiO so that the mass ratio is 4 parts of zirconium phosphate, 4 parts of CuO ⁇ SiO 2 composite oxide, 3 parts of hydrous zirconium oxide, and 6 parts of resin solids of polyester.
- Deodorant-containing processing liquid having a solid content concentration of 10% was prepared using 2 composite oxide powder, hydrous zirconium oxide powder, and polyester binder.
- the deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 with a zirconium phosphate content of 4 g / m 2 , a CuO ⁇ SiO 2 composite oxide spread amount of 4 g / m 2 , and a hydrous zirconium oxide spread amount.
- Deodorant nonwoven fabric D8 in which padding is uniformly applied to 3 g / m 2 and then dried at 130 ° C., and the deodorant is uniformly adhered from one side of nonwoven fabric sheet W1 to the entire other side. was prepared, and the air permeability was measured when the basis weight, thickness, 1 layer, and 2 layers were laminated (see Table 3).
- Production Example 9 (Production of deodorant nonwoven fabric D9) Aluminum silicate powder, active zinc oxide, 4 parts aluminum silicate, 3 parts active zinc oxide, 3 parts adipic acid dihydrazide 30% silica gel, and 5 parts by weight polyester resin solids A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using the powder, silica gel powder carrying 30% adipic acid dihydrazide, and a polyester-based binder. Next, this deodorant-containing processing liquid was applied to the nonwoven fabric sheet W1 with a silica gel carrying 30% adipic acid dihydrazide with an aluminum silicate spread of 4 g / m 2 and an active zinc oxide spread of 3 g / m 2.
- the padding was uniformly applied so that the amount applied was 3 g / m 2 , it was dried at 130 ° C., and the deodorant was uniformly adhered from one side of the nonwoven fabric sheet W1 to the entire other side.
- the odor nonwoven fabric D9 was produced, and the air permeability when the basis weight, thickness, 1 layer, and 2 layers were laminated was measured (see Table 3).
- Production Example 10 (Production of deodorant nonwoven fabric D10) CuO ⁇ SiO 2 composite oxide 4 parts, 3 parts of hydrotalcite, and as a resin solid content of the polyester is the mass ratio of 4 parts, CuO ⁇ SiO 2 composite oxide powder, hydrotalcite powder, and A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder. Next, this deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 so that the spread amount of the CuO.SiO 2 composite oxide is 4 g / m 2 and the spread amount of hydrotalcite is 3 g / m 2 . After uniformly applying the padding, it is dried at 130 ° C.
- Production Example 11 (Production of deodorant nonwoven fabric D11) Zirconium phosphate powder and CuO.SiO 2 composite oxide powder, so that zirconium phosphate is 4 parts, CuO.SiO 2 composite oxide is 4 parts, and polyester resin solids is 4 parts by weight, and A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder. Next, the deodorant-containing processing liquid is applied to the nonwoven fabric sheet W2 so that the spread amount of zirconium phosphate is 4 g / m 2 and the spread amount of the CuO ⁇ SiO 2 composite oxide is 4 g / m 2 .
- Production Example 13 (Production of deodorant nonwoven fabric D13) Zirconium phosphate powder and CuO.SiO 2 composite oxide powder, so that the zirconium phosphate is 6 parts, the CuO.SiO 2 composite oxide is 6 parts, and the polyester resin solid content is 6 parts.
- a deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder.
- this deodorant-containing processing liquid is applied to the nonwoven fabric sheet W3 so that the spread amount of zirconium phosphate is 6 g / m 2 and the spread amount of the CuO ⁇ SiO 2 composite oxide is 6 g / m 2 . After applying the padding uniformly, it was dried at 130 ° C. to produce a deodorant nonwoven fabric D13 in which the deodorant was uniformly adhered from one side to the other side of the nonwoven fabric sheet W3.
- the air permeability was measured (see Table 4).
- Production Example 14 Solid using aluminum silicate powder, hydrous zirconium oxide powder, and polyester binder so that the weight ratio of aluminum silicate is 8 parts, hydrous zirconium oxide is 6 parts, and the polyester resin solid content is 7 parts.
- a deodorant-containing processing liquid having a partial concentration of 10% was prepared.
- the deodorant-containing processing liquid is uniformly padded onto the nonwoven fabric sheet W3 so that the spread amount of aluminum silicate is 8 g / m 2 and the spread amount of hydrous zirconium oxide is 6 g / m 2.
- it is dried at 130 ° C. to produce a deodorant nonwoven fabric D14 in which a deodorant is uniformly adhered from one side of the nonwoven fabric sheet W3 to the other side, and the basis weight, thickness, and air permeability are adjusted. Measured (see Table 4).
- Production Example 15 Solid using aluminum silicate powder, active zinc oxide powder, and polyester binder so that aluminum silicate is 8 parts, active zinc oxide is 6 parts, and polyester resin solid content is 7 parts.
- a deodorant-containing processing liquid having a partial concentration of 10% was prepared.
- the deodorant-containing processing liquid is uniformly dip-coated on the nonwoven fabric sheet W3 so that the spread amount of aluminum silicate is 8 g / m 2 and the spread amount of active zinc oxide is 6 g / m 2.
- it is dried at 130 ° C. to produce a deodorized nonwoven fabric D15 in which a deodorant is uniformly bonded from one side of the nonwoven fabric sheet W3 to the other side, and the basis weight, thickness, and air permeability are adjusted. Measured (see Table 4).
- Production Example 16 (Production of deodorant nonwoven fabric D16) Hydrous zirconium oxide powder, hydrous zirconium oxide 30% adipic acid dihydrazide, and silica gel powder 30% supported by adipic acid dihydrazide so that the resin solid content of polyester is 6 parts by weight, 6 parts hydrous zirconium oxide, 6 parts adipic acid dihydrazide supported silica gel, and A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder.
- the deodorant-containing processing liquid is applied to the nonwoven fabric sheet W3 so that the spread amount of hydrous zirconium oxide is 6 g / m 2 and the spread amount of silica gel supported with 30% adipic acid dihydrazide is 6 g / m 2 .
- it is dried at 130 ° C. to produce a deodorant nonwoven fabric D16 in which the deodorizer is uniformly adhered from one side to the other side of the nonwoven fabric sheet W3, and the basis weight and thickness
- the air permeability was measured (see Table 4).
- Production Example 17 Solid content concentration using amorphous zeolite powder, hydrotalcite powder, and polyester binder so that the mass ratio is 8 parts amorphous zeolite, 6 parts hydrotalcite, and 7 parts polyester resin solids.
- a processing liquid containing 10% deodorant was prepared.
- the deodorant-containing processing liquid was uniformly padded onto the nonwoven fabric sheet W3 so that the amorphous zeolite spread amount was 8 g / m 2 and the hydrotalcite spread amount was 6 g / m 2 .
- it is dried at 130 ° C. to produce a deodorant nonwoven fabric D17 in which a deodorant is uniformly adhered from one side to the other side of the nonwoven fabric sheet W3, and the basis weight, thickness, and air permeability are measured. (See Table 4).
- Production Example 18 (Production of deodorized nonwoven fabric D18) CuO.SiO 2 composite oxide powder, hydrotalcite powder, and 10 parts of CuO.SiO 2 composite oxide, 10 parts of hydrotalcite, and 10 parts of resin solid content of polyester, A deodorant-containing processing liquid having a solid content concentration of 10% was prepared using a polyester binder. Next, the deodorant-containing processing liquid is applied to the nonwoven fabric sheet W1 so that the spread amount of the CuO ⁇ SiO 2 composite oxide is 10 g / m 2 and the spread amount of hydrotalcite is 10 g / m 2 . After uniformly applying the padding, it is dried at 130 ° C.
- Production Example 19 (Production of deodorant nonwoven fabric D19) Zirconium phosphate powder so that the mass ratio is 4 parts of zirconium phosphate, 4 parts of CuO ⁇ SiO 2 composite oxide, 3 parts of silica gel carrying 30% adipic acid dihydrazide, and 6 parts of resin solid content of polyester.
- Deodorant-containing processing liquid having a solid content concentration of 10% was prepared using CuO ⁇ SiO 2 composite oxide powder, silica gel powder carrying 30% adipic acid dihydrazide, and polyester binder.
- this deodorant-containing processing liquid is applied to the nonwoven fabric sheet W2 with a spreading amount of zirconium phosphate of 4 g / m 2 , a spreading amount of CuO ⁇ SiO 2 composite oxide of 4 g / m 2 , and adipic acid dihydrazide 30.
- a spreading amount of zirconium phosphate of 4 g / m 2 a spreading amount of CuO ⁇ SiO 2 composite oxide of 4 g / m 2
- adipic acid dihydrazide 30 After uniformly applying padding so that the spread amount of the silica gel supported by 3% is 3 g / m 2 , it is dried at 130 ° C., and the deodorant is uniformly distributed from one side of the nonwoven fabric sheet W2 to the other side.
- a deodorant nonwoven fabric D19 adhered to the substrate was prepared, and the basis weight, thickness, and the air permeability when 1 layer and 2 layers were laminated were measured (see Table 4).
- a deodorant-containing processing liquid having a solid content concentration of 10% was prepared using activated carbon powder and a polyester-based binder such that the activated carbon was 8 parts and the resin solid content of the polyester was 4 parts.
- this deodorant-containing processing liquid was uniformly padded on the nonwoven fabric sheet W1 so that the spread amount of activated carbon was 8 g / m 2, and then dried at 130 ° C.
- a deodorized nonwoven fabric D20 that was uniformly bonded from one side to the other side of the sheet W1 was prepared, and the air permeability was measured when the basis weight, thickness, one layer, and two layers were laminated (see Table 4). ).
- Nonwoven fabric W4 a nonwoven fabric having a basis weight of 25 g / m 2 obtained by a spunbond method using polypropylene resin fibers
- nonwoven fabric L1 a nonwoven fabric having a weight per unit area of 25 g / m 2 obtained by the melt blow method
- dust-proof nonwoven fabric L1 a conventionally known production method
- the deodorizing mask which has a three-dimensional structure of omega pleats was manufactured based on the manufacturing apparatus, and it used for various evaluation. The results are shown in Tables 5 and 6.
- Example 1 Manufacture and evaluation of deodorant mask M1 From the outermost layer, the nonwoven fabric W4, the two deodorized nonwoven fabrics D1 obtained in Production Example 1, the dust-proof nonwoven fabric L1, and the nonwoven fabric W4 are stacked in this order, so that the rectangular shape has a size of 175 mm ⁇ 95 mm. , Omega pleats were folded. Thereafter, the peripheral portion of the laminate was fused with a heat sealer (150 ° C.) in a state where a nose wire was inserted at a predetermined position in the mask main body made of the laminate.
- a heat sealer 150 ° C.
- ear hooks were formed on both ends of the mask main body by ultrasonic fusion to obtain a deodorizing mask M1 composed of five nonwoven fabric layers having a three-dimensional structure of omega pleats. Then, using the obtained deodorant mask M1, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and methyl mercaptan as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 5.
- Example 2 Manufacture and evaluation of deodorant mask M2
- a deodorant mask M2 composed of five nonwoven fabric layers was obtained by the same method as in Example 1 except that the deodorized nonwoven fabric D2 obtained in Production Example 2 was used. Then, the same evaluation as Example 1 was performed. The results are shown in Table 5.
- Example 3 Manufacture and evaluation of deodorant mask M3 A deodorizing mask M3 composed of five nonwoven fabric layers was obtained by the same method as in Example 1 except that the deodorized nonwoven fabric D3 obtained in Production Example 3 was used in place of the deodorized nonwoven fabric D1. Thereafter, using the obtained deodorant mask M3, the measurement of the air permeability in the mask main body, the measurement of the reduction rate of ammonia and acetic acid as malodor components, the sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 5.
- Example 4 (Production and evaluation of deodorant mask M4) A deodorizing mask M4 composed of five nonwoven fabric layers was obtained by the same method as in Example 1 except that the deodorizing nonwoven fabric D4 obtained in Production Example 4 was used instead of the deodorizing nonwoven fabric D1. Then, using the obtained deodorant mask M4, measurement of air permeability in the mask main body, measurement of reduction rate of ammonia, methyl mercaptan and acetaldehyde, which are malodorous components, sensory test by wearing deodorant mask, and deodorant mask The odor pleasantness / discomfort level was evaluated. The results are shown in Table 5.
- Example 5 Manufacture and evaluation of deodorant mask M5 A deodorizing mask M5 including five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorizing nonwoven fabric D5 obtained in Production Example 5 was used instead of the deodorizing nonwoven fabric D1. Then, using the obtained deodorant mask M5, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 5.
- Example 6 (Production and Evaluation of Deodorant Mask M6) A deodorizing mask M6 composed of five nonwoven fabric layers was obtained by the same method as in Example 1 except that the deodorized nonwoven fabric D6 obtained in Production Example 6 was used instead of the deodorized nonwoven fabric D1. Thereafter, using the obtained deodorant mask M6, measurement of the air permeability in the mask body, measurement of the reduction rate of acetic acid and acetaldehyde, which are malodorous components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 5.
- Example 7 (Production and evaluation of deodorant mask M7) A deodorizing mask M7 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorized nonwoven fabric D7 obtained in Production Example 7 was used in place of the deodorized nonwoven fabric D1. Then, using the obtained deodorant mask M7, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 5.
- Example 8 (Production and evaluation of deodorant mask M8) A deodorizing mask M8 composed of five nonwoven fabric layers was obtained by the same method as in Example 1 except that the deodorized nonwoven fabric D8 obtained in Production Example 8 was used in place of the deodorized nonwoven fabric D1. Then, using the obtained deodorant mask M8, measurement of the air permeability in the mask body, measurement of the reduction rate of each malodor component of ammonia, methyl mercaptan and acetic acid, sensory test by wearing the deodorant mask, and deodorant mask The odor pleasantness / discomfort level was evaluated. The results are shown in Table 5.
- Example 9 (Production and evaluation of deodorant mask M9) A deodorizing mask M9 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorizing nonwoven fabric D9 obtained in Production Example 9 was used instead of the deodorizing nonwoven fabric D1. Then, using the obtained deodorant mask M9, measurement of the air permeability in the mask main body, measurement of the reduction rate of ammonia, acetic acid and acetaldehyde as malodor components, sensory test by wearing the deodorant mask, and the deodorant mask itself And the evaluation of the pleasantness / discomfort of the odor. The results are shown in Table 5.
- Example 10 (Production and evaluation of deodorant mask M10) A deodorizing mask M10 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorizing nonwoven fabric D10 obtained in Production Example 10 was used in place of the deodorizing nonwoven fabric D1. Then, using the obtained deodorant mask M10, measurement of the air permeability in the mask main body, measurement of the reduction rate of methyl mercaptan and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the deodorant mask itself The evaluation of odor comfort / discomfort was performed. The results are shown in Table 5.
- Comparative Example 1 (Production and evaluation of deodorant mask M11) From the outermost layer, after stacking the nonwoven fabric W4, the two deodorized nonwoven fabrics D11 obtained in Production Example 11, the dust-proof nonwoven fabric L1, and the nonwoven fabric W4 in this order, the rectangular shape has a size of 175 mm ⁇ 95 mm. , Omega pleats were folded. Thereafter, the peripheral portion of the laminate was fused with a heat sealer (250 ° C.) in a state where a nose wire was inserted at a predetermined position in the mask main body made of the laminate.
- a heat sealer 250 ° C.
- ear hooks were formed on both ends of the mask main body by ultrasonic fusion to obtain a deodorizing mask M11 composed of five nonwoven fabric layers having a three-dimensional structure of omega pleats. Then, using the obtained deodorant mask M11, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and methyl mercaptan as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 2 (Production and Evaluation of Deodorant Mask M12) From the outermost layer, the non-woven fabric W4, the deodorized non-woven fabric D12 obtained in Production Example 12, the dust-proof non-woven fabric L1, and the non-woven fabric W4 are stacked in this order, and then become an 175 mm ⁇ 95 mm size omega pleat. The folding process was performed. Thereafter, the peripheral portion of the laminate was fused with a heat sealer (150 ° C.) in a state where a nose wire was inserted at a predetermined position in the mask main body made of the laminate.
- a heat sealer 150 ° C.
- ear hooks were formed on both ends of the mask main body by ultrasonic fusion to obtain a deodorizing mask M12 composed of four nonwoven fabric layers having a three-dimensional structure of omega pleats. Then, using the obtained deodorant mask M12, measurement of air permeability in the mask body, measurement of reduction rate of ammonia and methyl mercaptan as malodor components, sensory test by wearing the deodorant mask, and smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 3 (Production and Evaluation of Deodorant Mask M13) A deodorizing mask M13 composed of four layers of nonwoven fabric was obtained by the same method as in Comparative Example 2 except that the deodorized nonwoven fabric D13 obtained in Production Example 13 was used in place of the deodorized nonwoven fabric D12. Then, using the obtained deodorant mask M13, measurement of the air permeability in the mask main body, measurement of the reduction rate of ammonia and methyl mercaptan as malodor components, sensory test by wearing the deodorant mask, and the deodorant mask itself The evaluation of odor comfort / discomfort was performed. The results are shown in Table 6.
- Comparative Example 4 (Production and evaluation of deodorant mask M14) Instead of the deodorant nonwoven fabric D12, a deodorant mask M14 composed of four nonwoven fabric layers was obtained by the same method as in Comparative Example 2 except that the deodorized nonwoven fabric D14 obtained in Production Example 14 was used. Then, using the obtained deodorant mask M14, measurement of air permeability in the mask main body, measurement of reduction rate of ammonia and acetic acid as malodor components, sensory test by wearing the deodorant mask, and smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 5 (Production and evaluation of deodorant mask M15) A deodorizing mask M15 composed of four layers of nonwoven fabric was obtained in the same manner as in Comparative Example 2, except that the deodorized nonwoven fabric D15 obtained in Production Example 15 was used in place of the deodorized nonwoven fabric D12. Thereafter, using the obtained deodorant mask M15, measurement of the air permeability in the mask main body, measurement of the reduction rate of ammonia and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself. Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 6 (Production and evaluation of deodorant mask M16) A deodorizing mask M16 composed of four nonwoven fabric layers was obtained in the same manner as in Comparative Example 2, except that the deodorized nonwoven fabric D16 obtained in Production Example 16 was used in place of the deodorized nonwoven fabric D12. Thereafter, using the obtained deodorant mask M16, measurement of the air permeability in the mask main body, measurement of the reduction rate of acetic acid and acetaldehyde, which are malodorous components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 7 (Production and evaluation of deodorant mask M17) A deodorizing mask M17 composed of four layers of nonwoven fabric was obtained in the same manner as in Comparative Example 2 except that the deodorized nonwoven fabric D17 obtained in Production Example 17 was used instead of the deodorized nonwoven fabric D12. Then, using the obtained deodorant mask M17, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the smell of the deodorant mask itself Evaluation of the degree of comfort / discomfort. The results are shown in Table 6.
- Comparative Example 8 (Production and evaluation of deodorant mask M18) A deodorizing mask M18 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorized nonwoven fabric D18 obtained in Production Example 18 was used in place of the deodorized nonwoven fabric D1. Then, using the obtained deodorant mask M18, measurement of the air permeability in the mask main body, measurement of the reduction ratio of methyl mercaptan and acetic acid as malodor components, sensory test by wearing the deodorant mask, and the deodorant mask itself The evaluation of odor comfort / discomfort was performed. The results are shown in Table 6.
- Comparative Example 9 (Production and Evaluation of Deodorant Mask M19) A deodorizing mask M19 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorized nonwoven fabric D19 obtained in Production Example 19 was used in place of the deodorized nonwoven fabric D1. Then, using the obtained deodorant mask M19, measurement of air permeability in the mask main body, measurement of reduction rate of ammonia, methyl mercaptan and acetaldehyde, which are malodorous components, sensory test by wearing a deodorant mask, and deodorant mask The odor pleasantness / discomfort level was evaluated. The results are shown in Table 6.
- Comparative Example 10 (Production and Evaluation of Deodorant Mask M20) A deodorizing mask M20 composed of four layers of nonwoven fabric was obtained in the same manner as in Comparative Example 2, except that the deodorized nonwoven fabric D1 obtained in Production Example 1 was used instead of the deodorized nonwoven fabric D12. Then, using the obtained deodorant mask M20, measurement of the air permeability in the mask body, measurement of the reduction rate of ammonia and methyl mercaptan as malodor components, sensory test by wearing the deodorant mask, and the deodorant mask itself The evaluation of odor comfort / discomfort was performed. The results are shown in Table 6.
- Comparative Example 11 (Production and Evaluation of Deodorant Mask M21) A deodorizing mask M20 composed of five nonwoven fabric layers was obtained in the same manner as in Example 1 except that the deodorizing nonwoven fabric D20 obtained in Production Example 20 was used in place of the deodorizing nonwoven fabric D1. Thereafter, using the obtained deodorant mask M20, measurement of the air permeability in the mask main body, measurement of the reduction rate of ammonia, which is a malodorous component, sensory test by wearing the deodorant mask, and improvement of the odor of the deodorant mask itself. / Evaluation of discomfort. The results are shown in Table 6.
- Examples 1 to 10 showed high deodorizing performance with a malodor component reduction rate of 90% or more, and the sensory test was able to reduce malodor to an odor intensity level of 1.2 or less.
- the deodorizing nonwoven fabric layers of Comparative Examples 2, 3, 4, 5, 6 and 7 are one layer, and the deodorizing nonwoven fabric layers of Examples 1, 2, 3, 5, 6, and 7 are two layers,
- the material and production method of the nonwoven fabric of the deodorized nonwoven fabric layer, the composition and processing amount of the chemisorption deodorant and the binder, and the basis weight are the same, but in the comparative example, the deodorizing performance is present together with the malodor component reduction rate and sensory test odor strength Since it was inferior and the air permeability of a mask was also inferior, the effectiveness of making a deodorizing nonwoven fabric layer into multiple layers was shown.
- a high deodorizing performance can be obtained instantaneously with respect to malodorous components passing through the deodorizing fiber layer, for example, against malodorous gases such as excretion odor and spoiled odor. Therefore, odors at work sites and households such as excrement disposal plants, livestock farms, sewage treatment plants, sewage treatment plants, waste disposal plants, fertilizer factories, chemical factories, hospitals, nursing homes, fishing ports, disaster sites, etc. It can be used effectively where it occurs.
- Mask body 2 Mask body upper part 3: Ear hook part 4: Nose wire 5: Thermal fusion seam part 6: Thermal fusion mesh part 7: Non-woven fabric layer made of PP on the outside air side 8: Deodorized nonwoven fabric layer (deodorant fiber layer) ) 9: Dust-proof nonwoven fabric layer 10: Facial side PP nonwoven fabric layer 11: Pleated
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Abstract
Description
また、特開平5-115572号公報又は特開2009-201634号公報には、消臭フィルターを複数積層させることが記載されているが、依然として悪臭ガスに対する消臭性能は不十分であり、消臭フィルターを積層させることによる通気性の低下も大きかった。
更に、消臭フィルターや消臭マスク等の繊維製品は、製造後、紙、樹脂フィルム等からなる袋、箱等により包装(収容)されることが一般的であるが、バインダー(結合剤)を用いて、消臭剤を繊維表面に付着させて得られた繊維製品の中には、包装等の状態から取り出した際に、繊維製品を構成する消臭剤、繊維及びバインダー、並びに包装材料のいずれに依存するか不明な、不快な臭気(異臭)を放出するものがあった。
本発明において、悪臭の原因となる物質を「悪臭成分」といい、その悪臭成分を含むガスを「悪臭ガス」という。また、ガス濃度に関する単位「ppm」は「体積ppm」である。更に、「通気度」は、JIS L1096に準ずるフラジール形法により測定される通気度である。
また、本発明のマスク用消臭フィルター及びこれを用いた消臭マスクは、それ自体に不快臭が無いため、密閉環境において保管等された場合にも、不快な臭気を殆ど発生させることなく、変色も抑制されるので、快適に使用することができる。本発明の消臭マスクは、悪臭ガスの発生する場所(医療現場、介護現場、排泄現場、下水処理場、ごみ処理場(焼却場)、肥料工場、化学工場、畜産農場、漁港、動物関連施設等)における使用に好適である。
本発明のマスク用消臭フィルターは、繊維と、化学吸着型消臭剤とを含む消臭繊維層を2層以上備え、消臭繊維層を挟んで、フィルターの1面側から他面側に通気性を有する消臭フィルターである。本発明の消臭フィルターは、目的の大きさや形状(平面構造、プリーツ等の立体構造)に適応させて使用することができる。
また、消臭繊維層及び消臭フィルターを構成する基材は、織布及び不織布のいずれからなるものであってもよいが、所望の厚さの設定が容易であり、製造コストが安価であり、通気性のコントロールがし易いことから、不織布からなることが好ましい。
これらの悪臭成分に対する化学吸着型消臭剤としては、無機系化学吸着型消臭剤及び有機系化学吸着型消臭剤が挙げられる。無機系化学吸着型消臭剤としては、具体的には、4価金属のリン酸塩、ゼオライト、非晶質複合酸化物、Ag、Cu、Zn及びMnよりなる群から選ばれる原子の少なくとも1種を含有する化合物、水和酸化ジルコニウム及び酸化ジルコニウムよりなる群から選ばれるジルコニウム化合物、ハイドロタルサイト系化合物、非晶質活性化合物等が挙げられる。また、有機系化学吸着型消臭剤としては、アミン化合物等が挙げられる。安全性に優れ、変質しにくい消臭剤としては、水に対して不溶性又は難溶性の無機系の化学吸着型消臭剤が好ましい。
次に、本発明で用いる化学吸着型消臭剤を示す。
4価金属のリン酸塩は、好ましくは、下記一般式(1)で表される化合物である。この化合物は、水に対して不溶性又は難溶性であり、塩基性ガスに対する消臭効果に優れる。
HaMb(PO4)c・nH2O (1)
(式中、Mは、4価の金属原子であり、a、b及びcは、式:a+4b=3cを満たす整数であり、nは0又は正の整数である。)
上記一般式(1)におけるMとしては、Zr、Hf、Ti、Sn等が挙げられる。
4価金属のリン酸塩の好ましい具体例としては、リン酸ジルコニウム(Zr(HPO4)2・H2O)、リン酸ハフニウム、リン酸チタン、リン酸スズ等が挙げられる。これらの化合物には、α型結晶、β型結晶、γ型結晶等、種々の結晶系を有する結晶質のものと非晶質のものがあるが、いずれも好ましく用いることができる。
アミン化合物は、好ましくは、ヒドラジン系化合物又はアミノグアニジン塩である。これらの化合物は、アルデヒド系ガスと反応することから、アルデヒド系ガスに対する消臭効果に優れる。ヒドラジン系化合物としては、アジピン酸ジヒドラジド、カルボヒドラジド、コハク酸ジヒドラジド、シュウ酸ジヒドラジドが例示され、アミノグアニジン塩としては、アミノグアニジン塩酸塩、アミノグアニジン硫酸塩、アミノグアニジン重炭酸塩等が例示される。尚、これらのアミン化合物は、担体に担持された消臭剤を構成することができる。この場合の担体は、好ましくは無機化合物であり、具体的には、後述されるゼオライト、非晶質複合酸化物や、シリカゲル等が例示される。尚、ゼオライト及び非晶質複合酸化物は、いずれも、塩基性ガスに対する消臭効果を有するので、これらを担体として用いた場合には、アルデヒド系ガス及び塩基性ガスの両方に対して有効である。
ゼオライトは、好ましくは、合成ゼオライトである。上記ゼオライトは、水に対して不溶性又は難溶性であり、塩基性ガスに対する消臭効果に優れる。ゼオライトの構造は、多様であるが、公知のゼオライトは、いずれも使用でき、構造としては、A型、X型、Y型、α型、β型、ZSM-5、アモルファス等がある。
非晶質複合酸化物は、上記ゼオライト以外の化合物であり、好ましくは、Al2O3、SiO2、MgO、CaO、SrO、BaO、ZnO、ZrO2、TiO2、WO2、CeO2、Li2O、Na2O、K2Oよりなる群から選ばれた少なくとも2種により構成される非晶質の複合酸化物である。この複合酸化物は、水に対して不溶性又は難溶性であり、塩基性ガスに対する消臭効果に優れる。X2O-Al2O3-SiO2(Xは、Na、K、及びLiよりなる群から選ばれる少なくとも1種のアルカリ金属原子)で示される非晶質複合酸化物が、消臭性能に優れることから、特に好ましい。非晶質であることは、粉末X線回折測定を行ったときに、結晶面に基づく明らかな回折シグナルが認められないことを意味し、具体的には、横軸に回折角、縦軸に回折シグナル強度をプロットしたX線回折チャートに、尖度の高い(いわゆるシャープな)シグナルピークがほとんど現れないものである。
この複合物は、水に対して不溶性又は難溶性の複合物であり、硫黄系ガスに対する消臭効果に優れる。この複合物は、Ag、Cu、Zn及びMnよりなる群から選ばれる原子の少なくとも1種、並びに、該原子を含有する化合物よりなる群から選ばれた少なくとも1種と、他の材料とからなる複合材料である。Ag、Cu、Zn及びMnのうちの少なくとも1種の原子を含有する化合物は、好ましくは、酸化物、水酸化物、リン酸、硫酸等の無機酸の塩、酢酸、蓚酸、アクリル酸等の有機酸の塩である。従って、この消臭剤[5]として、Ag、Cu、Zn及びMnよりなる群から選ばれた少なくとも1種の金属、又は、上記化合物を、他の材料としての無機化合物からなる担体に担持させた、水に不溶性の複合物を用いることもできる。担体として好ましい無機化合物は、シリカ、4価金属のリン酸塩及びゼオライト等である。尚、4価金属のリン酸塩及びゼオライトは、塩基性ガスに対する消臭効果を有するので、4価金属のリン酸塩及びゼオライトを担体として用いた場合には、硫黄系ガス及び塩基性ガスの両方に対して有効である。
ジルコニウム化合物は、水和酸化ジルコニウム及び酸化ジルコニウムが挙げられ、好ましくは、非晶質化合物である。これらの化合物は、水に対して不溶性又は難溶性であり、酸性ガスに対する消臭効果に優れる。水和酸化ジルコニウムは、オキシ水酸化ジルコニウム、水酸化ジルコニウム、含水酸化ジルコニウム、酸化ジルコニウム水和物と同義の化合物である。
ハイドロタルサイト系化合物は、ハイドロタルサイト構造を有し、好ましくは、下記一般式(2)で表される化合物である。この化合物は、水に対して不溶性又は難溶性であり、酸性ガスに対する消臭効果に優れる。
M1 (1-x)M2 x(OH)2An- (x/n)・mH2O (2)
(式中、M1は2価の金属原子であり、M2は3価の金属原子であり、xは0より大きく0.5以下の数であり、An-は炭酸イオン、硫酸イオン等のn価の陰イオンであり、mは正の整数である。)
上記ハイドロタルサイト系化合物としては、マグネシウム-アルミニウムハイドロタルサイト、亜鉛-アルミニウムハイドロタルサイト等が挙げられる。これらのうち、酸性ガスに対して、より優れた消臭効果を有することから、マグネシウム-アルミニウムハイドロタルサイトが特に好ましい。尚、ハイドロタルサイトの焼成物、即ち、ハイドロタルサイト化合物を約500℃以上の温度で焼成し、炭酸根や水酸基が脱離することにより得られる化合物もハイドロタルサイト系化合物に含まれる。
この非晶質活性酸化物は、上記非晶質複合酸化物を含まない化合物であり、好ましくは、水に対して不溶性又は難溶性であり、酸性ガス又は硫黄系ガスに対する消臭効果に優れる。非晶質活性酸化物としては、具体的には、Al2O3、SiO2、MgO、CaO、SrO、BaO、ZnO、CuO、MnO、ZrO2、TiO2、WO2、CeO2等が挙げられる。また、表面処理された活性酸化物を用いることもできる。表面処理物の具体例としては、オルガノポリシロキサンで表面処理した活性酸化物、アルミニウム、珪素、ジルコニウム又はスズの酸化物あるいは水酸化物で表面を被覆した活性酸化物が挙げられる。オルガノポリシロキサン等の有機系材料で表面処理する方が無機系材料で表面処理するよりも、消臭性能が高いので好ましい。
また、化学吸着型消臭剤は、悪臭成分と接触する効率が高いほど、優れた消臭効果も得られることから、比表面積は、好ましくは10~800m2/g、より好ましくは30~600m2/gである。比表面積は、窒素吸着量から算出するBET法により測定することができる。
また、親水基は、公知の方法により導入することができるが、-COO-を導入する場合には、例えば、無水トリメリット酸、トリメリット酸、無水ピロメリット酸、ピロメリット酸、トリメシン酸、シクロブタンテトラカルボン酸、ジメチロールプロピオン酸等を用いた重縮合反応の後、アミノ化合物、アンモニア又はアルカリ金属塩を用いて中和反応に供する方法等が適用される。
(B)ビニルエステルと、エチレン性不飽和単量体とを共重合し、その後、共重合体をケン化することにより得られたポリビニルアルコール
上記ビニル系単量体としては、酢酸ビニル、プロピオン酸ビニル、乳酸ビニル等の脂肪酸ビニルエステル類;シクロヘキシルビニルエーテル、エチルビニルエーテル、ヒドロキシエチルビニルエーテル、ヒドロキシブチルビニルエーテル、ヒドロキシシクロヘキシルビニルエーテル等のビニルエーテル類;アクリル酸メチル、メタクリル酸メチル、アクリル酸エチル、メタクリル酸エチル、アクリル酸2-ヒドロキシエチル、メタクリル酸2-ヒドロキシエチル、アクリル酸2-ヒドロキシプロピル、メタクリル酸2-ヒドロキシプロピル、アクリル酸3-ヒドロキシプロピル、メタクリル酸3-ヒドロキシプロピル等のアクリル酸エステル類又はメタクリル酸エステル類;ヒドロキシブチルアリルエーテル、エチレングリコールモノアリルエーテル等のアリルエーテル類等が挙げられる。
また、消臭繊維層の目付量(1m2あたりの質量)は、十分な消臭効果及び通気性が得られることから、20~45g/m2であり、好ましくは22~42g/m2、より好ましくは25~40g/m2である。消臭繊維層の目付量が20g/m2未満の場合、消臭繊維層の通気度が高くなりすぎるため、悪臭ガス中の悪臭成分が化学吸着型消臭剤と接触せず、悪臭ガスの大部分が消臭繊維層を通過してしまい、消臭効果は低下する。一方、目付量が45g/m2を超えると、消臭繊維層の通気度が大きく低下し、気体が、消臭フィルターの1面側から他面側に対して円滑に流れなくなる。
上記消臭繊維層の厚さが0.15~0.4mmであり、かつ、目付量が20~45g/m2である場合、高い通気性を有する一方で、悪臭成分が化学吸着型消臭剤に十分に吸着され、悪臭ガスに対する優れた消臭性能を得ることができる。消臭フィルターに高い通気性を備え、更に高い消臭性能を発現させるためには、消臭繊維層の厚さ及び目付量が特定の範囲にあることが重要である。
また、特定の消臭不織布層を単層から2層に分けることにより、化学吸着型消臭剤が不織布表面に露出し易くなり、消臭性能を向上させることができる。更に、消臭不織布層を2層以上にすることにより1層あたりの化学吸着型消臭剤の加工量が低減するため、不織布への加工性が向上し、均一に消臭剤を不織布へ加工することが可能となりより高い消臭性能を得ることができる。
また、本発明のマスク用消臭フィルターが備える消臭繊維層は、2~8層であることが好ましく、2~4層であることがより好ましく、2又は3層であることが更に好ましく、2層であることが特に好ましい。
(1)化学吸着型消臭剤を含まない繊維からなる織布又は不織布の全体に、化学吸着型消臭剤とバインダーとを含む消臭剤含有加工液を塗布(浸漬、スプレー、パディング等)した後、乾燥し、織布又は不織布を構成する繊維の表面に、化学吸着型消臭剤を接着させて消臭繊維層を作製し、これを2層以上積層させてマスク用消臭フィルターを製造する方法。
(2)化学吸着型消臭剤が、表出するように、繊維の基部表面に埋設された複合繊維からなる織布又は不織布を用いて、必要により、交絡処理(ニードルパンチ法等)に供して、消臭繊維層を作製し、これを2層以上積層させてマスク用消臭フィルターを製造する方法。
(3)化学吸着型消臭剤を含まない繊維からなる織布又は不織布の該繊維に、化学吸着型消臭剤を接触させた状態で、熱処理又は化学処理を行い、化学吸着型消臭剤を繊維の表面に定着させて消臭繊維層を作製し、これを2層以上積層させてマスク用消臭フィルターを製造する方法。
本発明においては、(1)の展着加工法が好ましく、繊維を、化学吸着型消臭剤とバインダーとを含む消臭剤含有加工液に浸漬して消臭繊維層を作製し、これを2層以上積層させてマスク用消臭フィルターを製造する方法がより好ましい。
本発明の消臭マスクは、繊維と化学吸着型消臭剤とを含む上記消臭繊維層(消臭不織布層)を2層以上備えるマスクである。また、本発明の消臭マスクは、消臭不織布層に加えて、防塵不織布層及びその他の不織布層を備え、当該防塵不織布層が顔面側に位置するように用いることが好ましい。防塵不織布層及びその他の不織布層は、複数の不織布の積層体からなるものであってもよい。このような構成を備えることにより、優れた消臭性を有し、悪臭ガスの吸入を抑制することができる。
また、本発明の消臭マスクにおいては、消臭不織布層と防塵不織布層との間に、本願発明の効果に影響を及ぼさない範囲で、その他の層を備えることもできる。その他の層としては、通気性を有するものであれば、形状及び材質等の構成は、特に限定されず、不織布層でも織布層でも構わない。好ましくは消臭不織布層以上の通気性を有するものである。
本願発明の消臭マスクとしては、好ましくは、消臭不織布層が防塵不織布層に隣接した構造を有することである。消臭不織布層が防塵不織布層に接するように配置されている場合、本発明の効果を効率的に発揮することができる。
また、図2は、本発明の消臭マスクの一例における断面概略図であり、消臭マスクの外気側から顔面側に向かって、外気側ポリプロピレン(PP)製不織布層7、2層の消臭不織布層(消臭繊維層)8、防塵不織布層9、及び、顔面側PP製不織布層10の順で積層されている。また、図2に示す消臭マスクには、プリーツ11が設けられている。
詳細は後述するが、消臭マスクは、下記の不織布シートからなる基材と、表1に示した消臭剤及びポリエステル系バインダー樹脂及び水を含む消臭剤含有加工液とを用いて消臭不織布を作製した後、この消臭不織布と、他の不織布等を用いて、オメガプリーツ型のマスクを製造した。
(不織布シートW1)
ポリプロピレン樹脂繊維とポリエチレン樹脂繊維とを1:1の質量比で含む不織布がサーマルボンド法により製造されたもの。目付量は20g/m2。
(不織布シートW2)
ポリエステル樹脂繊維からなる不織布がサーマルボンド法により製造されたもの。目付量は17g/m2。
(不織布シートW3)
ポリプロピレン樹脂繊維とポリエチレン樹脂繊維とを1:1の質量比で含む不織布がサーマルボンド法により製造されたもの。目付量は40g/m2。
また、消臭剤の消臭容量を算出するための試験方法は、以下の通りである。
消臭剤0.01gを容量約4Lのテドラーバッグに入れ、密封後、臭気強度5の濃度の200倍に相当する、アンモニア(8000ppm)、メチルメルカプタン(40ppm)、酢酸(380ppm)又はアセトアルデヒド(2000ppm)を含むガス2Lを封入し、その24時間後に各悪臭成分の濃度(残存ガス成分濃度)をガス検知管で測定し、以下の式により消臭容量(mL/g)を得た。
消臭容量(mL/g)=[2000(mL)×(初期悪臭ガス成分濃度(ppm)-残存ガス成分濃度(ppm))×10-6]/0.01(g)
(1)通気度
マスク用消臭フィルター及びそれを用いた消臭マスクについて、JIS L1096「織物及び編物の生地試験方法」(2010年改正版)に規定されたフラジール形法により通気度を測定した。単位は、cm3/(cm2・s)である。
(a)悪臭成分低減率の測定
予め、所定の濃度の悪臭成分を含むように調製した悪臭ガスを、消臭マスクの本体部の1面側から他面側へ通過させることにより、消臭試験を実施した。具体的には、袋に収容した悪臭ガスを、(株)ガステック製気体採取器「MODEL GV-100」(型式名)を用いて吸引させつつ、経路にて面積5cm2の消臭マスクを通過させた後、気体検知管により通過ガス中の悪臭成分の濃度を測定した。
悪臭ガスとして、6段階臭気強度表示法に基づく臭気強度5の5倍に相当する、アンモニア(200ppm)、酢酸(9.5ppm)又はアセトアルデヒド(50ppm)を含むガス、並びに、臭気強度5の50倍に相当するメチルメルカプタン(10ppm)を含むガスを通気させた。そして、通気後、それぞれの悪臭成分に対応するガス検知管(アンモニア用気体検知管:No.3M、酢酸用気体検知管:No.81L、アセトアルデヒド用気体検知管:No.92、メチルメルカプタン用気体検知管:No.71)を用いて通過ガス中の各悪臭成分の濃度を測定し、以下の式により悪臭成分低減率を求めた。
悪臭成分低減率=[(通気前悪臭成分濃度-通気後悪臭成分濃度)/通気前悪臭成分濃度]×100
臭気強度5の濃度のアンモニアガス(40ppm)、酢酸ガス(1.9ppm)、アセトアルデヒドガス(10ppm)又はメチルメルカプタンガス(0.2ppm)2Lを臭気袋に充填し、6人の被験者に臭気袋内の臭いを嗅がせて悪臭ガスの臭いを認知させた後、消臭マスクを着用した状態で各々6名が臭気袋内の臭いを嗅ぎ、以下の基準に従って、臭気強度を判定した。6人の臭気強度を平均し、官能試験での臭気強度とした。臭気強度の値が小さいほど、マスクの消臭効果が高いことを意味する。
臭気強度0:無臭。
臭気強度1:感知できる臭い。
臭気強度2:何の臭いか分かる弱い臭い。
臭気強度3:楽に感知できる臭い。
臭気強度4:強い臭い。
臭気強度5:強烈な臭い。
サンプリングバッグに、消臭マスクを10枚入れて密閉した後に、5Lの無臭空気を入れて恒温機へ入れ、50℃で30日間保管した。その後、6人の被験者にこれらのマスクを着用させ、鼻で5回呼吸し、臭いを嗅いでもらった。このときの臭いの質を、表2に示す基準に従って判定し、6人の平均値を、快/不快度評価の結果とした。
上記の不織布シートからなる基材と、表1に示した消臭剤と、ポリエステル系バインダー及び水を含む消臭剤含有加工液を用いて、消臭繊維層に用いる消臭不織布を製造した。
リン酸ジルコニウムが4部、CuO・SiO2複合酸化物が4部、及びポリエステルの樹脂固形分が4部の質量比率になるように、リン酸ジルコニウム粉末及びCuO・SiO2複合酸化物粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、リン酸ジルコニウムの展着量が4g/m2、CuO・SiO2複合酸化物の展着量が4g/m2、となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D1を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
リン酸ジルコニウムが3部、CuO・SiO2複合酸化物が3部、及びポリエステルの樹脂固形分が3部の質量比率になるように、リン酸ジルコニウム粉末、及びCuO・SiO2複合酸化物粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、リン酸ジルコニウムの展着量が3g/m2、CuO・SiO2複合酸化物の展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D2を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
ケイ酸アルミニウムが4部、含水酸化ジルコニウムが3部、及びポリエステルの樹脂固形分が4部の質量比率になるように、ケイ酸アルミニウム粉末、含水酸化ジルコニウム粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、ケイ酸アルミニウムの展着量が4g/m2、含水酸化ジルコニウムの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D3を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
リン酸ジルコニウムが4部、CuO・SiO2複合酸化物が4部、アジピン酸ジヒドラジド30%担持シリカゲルが3部、及びポリエステルの樹脂固形分が6部の質量比率になるように、リン酸ジルコニウム粉末、CuO・SiO2複合酸化物粉末、アジピン酸ジヒドラジド30%担持シリカゲル粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、リン酸ジルコニウムの展着量が4g/m2、CuO・SiO2複合酸化物の展着量が4g/m2、アジピン酸ジヒドラジド30%担持シリカゲルの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D4を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
ケイ酸アルミニウムが4部、活性酸化亜鉛が3部、及びポリエステルの樹脂固形分が4部の質量比率になるように、ケイ酸アルミニウム粉末、活性酸化亜鉛粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、ケイ酸アルミニウムの展着量が4g/m2、活性酸化亜鉛の展着量が3g/m2となるように、均一に浸漬塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D5を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
含水酸化ジルコニウムが3部、アジピン酸ジヒドラジド30%担持シリカゲルが3部、及びポリエステルの樹脂固形分が3部の質量比率になるように、含水酸化ジルコニウム粉末、アジピン酸ジヒドラジド30%担持シリカゲル粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、含水酸化ジルコニウムの展着量が3g/m2、アジピン酸ジヒドラジド30%担持シリカゲルの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D6を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
アモルファスゼオライトが4部、ハイドロタルサイトが3部、及びポリエステルの樹脂固形分が4部の質量比率になるように、アモルファスゼオライト粉末、ハイドロタルサイト粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、アモルファスゼオライトの展着量が4g/m2、ハイドロタルサイトの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D7を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
リン酸ジルコニウムが4部、CuO・SiO2複合酸化物が4部、含水酸化ジルコニウムが3部、及びポリエステルの樹脂固形分が6部の質量比率になるように、リン酸ジルコニウム粉末、CuO・SiO2複合酸化物粉末、含水酸化ジルコニウム粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、リン酸ジルコニウムが4g/m2、CuO・SiO2複合酸化物の展着量が4g/m2、含水酸化ジルコニウムの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D8を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
ケイ酸アルミニウムが4部、活性酸化亜鉛が3部、アジピン酸ジヒドラジド30%担持シリカゲルが3部、及びポリエステルの樹脂固形分が5部の質量比率になるように、ケイ酸アルミニウム粉末、活性酸化亜鉛粉末、アジピン酸ジヒドラジド30%担持シリカゲル粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、ケイ酸アルミニウムの展着量が4g/m2、活性酸化亜鉛の展着量が3g/m2アジピン酸ジヒドラジド30%担持シリカゲルの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D9を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
CuO・SiO2複合酸化物が4部、ハイドロタルサイトが3部、及びポリエステルの樹脂固形分が4部の質量比率になるように、CuO・SiO2複合酸化物粉末、ハイドロタルサイト粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、CuO・SiO2複合酸化物の展着量が4g/m2、ハイドロタルサイトの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D10を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表3参照)。
リン酸ジルコニウムが4部、CuO・SiO2複合酸化物が4部、及びポリエステルの樹脂固形分が4部の質量比率になるように、リン酸ジルコニウム粉末及びCuO・SiO2複合酸化物粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW2に、リン酸ジルコニウムの展着量が4g/m2、CuO・SiO2複合酸化物の展着量が4g/m2、となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW2の1面側から他面側の全体に均一に接着された消臭不織布D11を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表4参照)。
リン酸ジルコニウムが8部、CuO・SiO2複合酸化物が8部、及びポリエステルの樹脂固形分が8部の質量比率になるように、リン酸ジルコニウム粉末及びCuO・SiO2複合酸化物粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、リン酸ジルコニウムの展着量が8g/m2、CuO・SiO2複合酸化物の展着量が8g/m2、となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D12を作製し、目付量、厚さ、通気度を測定した(表4参照)。
リン酸ジルコニウムが6部、CuO・SiO2複合酸化物が6部、及びポリエステルの樹脂固形分が6部の質量比率になるように、リン酸ジルコニウム粉末及びCuO・SiO2複合酸化物粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、リン酸ジルコニウムの展着量が6g/m2、CuO・SiO2複合酸化物の展着量が6g/m2、となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D13を作製し、目付量、厚さ、通気度を測定した(表4参照)。
ケイ酸アルミニウムが8部、含水酸化ジルコニウムが6部、及びポリエステルの樹脂固形分が7部の質量比率になるように、ケイ酸アルミニウム粉末、含水酸化ジルコニウム粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、ケイ酸アルミニウムの展着量が8g/m2、含水酸化ジルコニウムの展着量が6g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D14を作製し、目付量、厚さ、通気度を測定した(表4参照)。
ケイ酸アルミニウムが8部、活性酸化亜鉛が6部、及びポリエステルの樹脂固形分が7部の質量比率になるように、ケイ酸アルミニウム粉末、活性酸化亜鉛粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、ケイ酸アルミニウムの展着量が8g/m2、活性酸化亜鉛の展着量が6g/m2となるように、均一に浸漬塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D15を作製し、目付量、厚さ、通気度を測定した(表4参照)。
含水酸化ジルコニウムが6部、アジピン酸ジヒドラジド30%担持シリカゲルが6部、及びポリエステルの樹脂固形分が6部の質量比率になるように、含水酸化ジルコニウム粉末、アジピン酸ジヒドラジド30%担持シリカゲル粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、含水酸化ジルコニウムの展着量が6g/m2、アジピン酸ジヒドラジド30%担持シリカゲルの展着量が6g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D16を作製し、目付量、厚さ、通気度を測定した(表4参照)。
アモルファスゼオライトが8部、ハイドロタルサイトが6部、及びポリエステルの樹脂固形分が7部の質量比率になるように、アモルファスゼオライト粉末、ハイドロタルサイト粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW3に、アモルファスゼオライトの展着量が8g/m2、ハイドロタルサイトの展着量が6g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW3の1面側から他面側の全体に均一に接着された消臭不織布D17を作製し、目付量、厚さ、通気度を測定した(表4参照)。
CuO・SiO2複合酸化物が10部、ハイドロタルサイトが10部、及びポリエステルの樹脂固形分が10部の質量比率になるように、CuO・SiO2複合酸化物粉末、ハイドロタルサイト粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、CuO・SiO2複合酸化物の展着量が10g/m2、ハイドロタルサイトの展着量が10g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D18を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表4参照)。
リン酸ジルコニウムが4部、CuO・SiO2複合酸化物が4部、アジピン酸ジヒドラジド30%担持シリカゲルが3部、及びポリエステルの樹脂固形分が6部の質量比率になるように、リン酸ジルコニウム粉末、CuO・SiO2複合酸化物粉末、アジピン酸ジヒドラジド30%担持シリカゲル粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW2に、リン酸ジルコニウムの展着量が4g/m2、CuO・SiO2複合酸化物の展着量が4g/m2、アジピン酸ジヒドラジド30%担持シリカゲルの展着量が3g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW2の1面側から他面側の全体に均一に接着された消臭不織布D19を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表4参照)。
活性炭が8部、及びポリエステルの樹脂固形分が4部の質量比率になるように、活性炭粉末、及びポリエステル系バインダーを用いて、固形分濃度が10%の消臭剤含有加工液を調製した。次いで、この消臭剤含有加工液を、不織布シートW1に、活性炭の展着量が8g/m2となるように、均一にパディング塗布した後、130℃で乾燥して、消臭剤が不織布シートW1の1面側から他面側の全体に均一に接着された消臭不織布D20を作製し、目付量、厚さ、1層及び2層積層した際の通気度を測定した(表4参照)。
上記で作製した消臭不織布と、ポリプロピレン樹脂繊維を用いてスパンボンド法により得られた目付量25g/m2の不織布(以下、「不織布W4」という)と、ポリプロピレン樹脂繊維を用いてメルトブロー法により得られた目付量25g/m2の不織布(以下、「防塵不織布L1」という)とを、いずれも、175mm×165mmの大きさとし、これらを用いて、従来、公知の製造方法及び製造装置に基づき、オメガプリーツの立体構造を有する消臭マスクを製造し、各種評価に供した。その結果を表5及び表6に示す。
最外層から、不織布W4、製造例1で得られた消臭不織布D1を2枚、防塵不織布L1、及び、不織布W4を、この順に重ねた後、175mm×95mmの大きさの長方形となるように、オメガプリーツの折り畳み加工を行った。その後、この積層物からなるマスク本体部における所定の位置にノーズワイヤを挿入した状態で、積層物の周縁部をヒートシーラー(150℃)で融着した。次いで、マスク本体部の両端に、耳かけを超音波融着により形成し、オメガプリーツの立体構造を有する5層の不織布層から成る消臭マスクM1を得た。
その後、得られた消臭マスクM1を用いて、マスク本体における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタンの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例2で得られた消臭不織布D2を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM2を得た。その後、実施例1と同じ評価を行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例3で得られた消臭不織布D3を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM3を得た。その後、得られた消臭マスクM3を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例4で得られた消臭不織布D4を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM4を得た。その後、得られた消臭マスクM4を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタン及びアセトアルデヒドの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例5で得られた消臭不織布D5を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM5を得た。その後、得られた消臭マスクM5を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例6で得られた消臭不織布D6を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM6を得た。その後、得られた消臭マスクM6を用いて、マスク本体部における通気度測定と、悪臭成分である酢酸及びアセトアルデヒドの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例7で得られた消臭不織布D7を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM7を得た。その後、得られた消臭マスクM7を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例8で得られた消臭不織布D8を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM8を得た。
その後、得られた消臭マスクM8を用いて、マスク本体部における通気度測定と、アンモニア、メチルメルカプタン及び酢酸の各悪臭成分の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例9で得られた消臭不織布D9を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM9を得た。その後、得られた消臭マスクM9を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸及びアセトアルデヒドの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
消臭不織布D1に代えて、製造例10で得られた消臭不織布D10を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM10を得た。その後、得られた消臭マスクM10を用いて、マスク本体部における通気度測定と、悪臭成分であるメチルメルカプタン及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表5に示す。
最外層から、不織布W4、製造例11で得られた消臭不織布D11を2枚、防塵不織布L1、及び、不織布W4を、この順に重ねた後、175mm×95mmの大きさの長方形となるように、オメガプリーツの折り畳み加工を行った。その後、この積層物からなるマスク本体部における所定の位置にノーズワイヤを挿入した状態で、積層物の周縁部をヒートシーラー(250℃)で融着した。次いで、マスク本体部の両端に、耳かけを超音波融着により形成し、オメガプリーツの立体構造を有する5層の不織布層から成る消臭マスクM11を得た。
その後、得られた消臭マスクM11を用いて、マスク本体における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタンの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
最外層から、不織布W4、製造例12で得られた消臭不織布D12、防塵不織布L1、及び、不織布W4を、この順に重ねた後、175mm×95mmの大きさの長方形となるように、オメガプリーツの折り畳み加工を行った。その後、この積層物からなるマスク本体部における所定の位置にノーズワイヤを挿入した状態で、積層物の周縁部をヒートシーラー(150℃)で融着した。次いで、マスク本体部の両端に、耳かけを超音波融着により形成し、オメガプリーツの立体構造を有する4層の不織布層から成る消臭マスクM12を得た。
その後、得られた消臭マスクM12を用いて、マスク本体における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタンの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例13で得られた消臭不織布D13を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM13を得た。その後、得られた消臭マスクM13を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタンの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例14で得られた消臭不織布D14を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM14を得た。その後、得られた消臭マスクM14を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例15で得られた消臭不織布D15を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM15を得た。その後、得られた消臭マスクM15を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例16で得られた消臭不織布D16を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM16を得た。その後、得られた消臭マスクM16を用いて、マスク本体部における通気度測定と、悪臭成分である酢酸及びアセトアルデヒドの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例17で得られた消臭不織布D17を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM17を得た。その後、得られた消臭マスクM17を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D1に代えて、製造例18で得られた消臭不織布D18を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM18を得た。その後、得られた消臭マスクM18を用いて、マスク本体部における通気度測定と、悪臭成分であるメチルメルカプタン及び酢酸の低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D1に代えて、製造例19で得られた消臭不織布D19を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM19を得た。その後、得られた消臭マスクM19を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア、メチルメルカプタン及びアセトアルデヒドの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D12に代えて、製造例1で得られた消臭不織布D1を用いた以外は、比較例2と同様の方法により、4層の不織布層から成る消臭マスクM20を得た。その後、得られた消臭マスクM20を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニア及びメチルメルカプタンの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す。
消臭不織布D1に代えて、製造例20で得られた消臭不織布D20を用いた以外は、実施例1と同様の方法により、5層の不織布層から成る消臭マスクM20を得た。その後、得られた消臭マスクM20を用いて、マスク本体部における通気度測定と、悪臭成分であるアンモニアの低減率測定と、消臭マスク着用による官能試験と、消臭マスク自体の臭いの快/不快度の評価とを行った。その結果を表6に示す
また、実施例1~10のすべておいて、マスク自体の臭気の快/不快度は-1以上であった。これに対して、比較例1及び比較例9は不織布基布の成分にポリエチレンを含まなかった例であるが、これらの快/不快度は-2以下となり不快度が高まった。
比較例8は通気度が50cm3/(cm2・s)以下の消臭不織布層をマスクに用いた例であるが、消臭性能は高いものの、マスクの通気度は低く、実用的ではないものであった。比較例10は実施例1に用いた消臭フィルターを1層にしたものであるが、悪臭成分低減率及び官能試験臭気強度と共に消臭性能が劣った。また、比較例11は、化学吸着型消臭剤ではない消臭剤として活性炭を用いた例であり、悪臭成分低減率及び官能試験臭気強度と共に顕著に低い消臭性能であった。
2:マスク本体上部
3:耳かけ部
4:ノーズワイヤ
5:熱融着シーム部
6:熱融着メッシュ部
7:外気側PP製不織布層
8:消臭不織布層(消臭繊維層)
9:防塵不織布層
10:顔面側PP製不織布層
11:プリーツ
Claims (9)
- 繊維と、化学吸着型消臭剤とを含む消臭繊維層を2層以上備え、
前記消臭繊維層はポリエチレン樹脂繊維を含有し、
前記消臭繊維層の厚さは0.15~0.4mmであり、かつ、消臭繊維層の目付量は20~45g/m2であることを特徴とする
マスク用消臭フィルター。 - 前記マスク用消臭フィルターの基材が、不織布である請求項1に記載のマスク用消臭フィルター。
- 前記2層以上のそれぞれの消臭繊維層が、同一の化学吸着型消臭剤を含む請求項1又は2に記載のマスク用消臭フィルター。
- 前記化学吸着型消臭剤が、[1]4価金属のリン酸塩、[2]アミン化合物、[3]ゼオライト、[4]X2O-Al2O3-SiO2(Xは、Na、K及びLiよりなる群から選ばれる少なくとも1種の原子)で示される非晶質複合酸化物、[5]Ag、Cu、Zn及びMnよりなる群から選ばれる少なくとも1種の原子を含有する化合物、[6]水和酸化ジルコニウム及び酸化ジルコニウムよりなる群から選ばれる少なくとも1種のジルコニウム化合物、[7]ハイドロタルサイト系化合物、並びに[8]非晶質活性酸化物よりなる群から選ばれる化合物である請求項1~3のいずれか1項に記載のマスク用消臭フィルター。
- 前記消臭繊維層における化学吸着型消臭剤の含有量が、1g/m2以上である請求項1~4のいずれか1項に記載のマスク用消臭フィルター。
- 前記消臭繊維層が、化学吸着型消臭剤を含む液体に繊維を浸漬した後、乾燥して製造されたものである請求項1~5のいずれか1項に記載のマスク用消臭フィルター。
- 前記消臭繊維層において、化学吸着型消臭剤がバインダーを用いて繊維に接合されている請求項1~6のいずれか1項に記載のマスク用消臭フィルター。
- フラジール形法に基づく通気度が、50~350cm3/(cm2・s)である請求項1~7のいずれか1項に記載のマスク用消臭フィルター。
- 請求項1~8のいずれか1項に記載のマスク用消臭フィルターと、前記消臭フィルター以外のフィルターとを積層して含むことを特徴とする消臭マスク。
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KR1020177014211A KR20170094157A (ko) | 2014-12-17 | 2015-10-28 | 마스크용 소취 필터 및 소취 마스크 |
CN201580066106.4A CN107105801A (zh) | 2014-12-17 | 2015-10-28 | 口罩用消臭过滤器及消臭口罩 |
JP2016564727A JPWO2016098460A1 (ja) | 2014-12-17 | 2015-10-28 | マスク用消臭フィルター及び消臭マスク |
US15/534,221 US20170367416A1 (en) | 2014-12-17 | 2015-10-28 | Deodorizing filter for mask and deodorizing mask |
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JPWO2018074509A1 (ja) * | 2016-10-18 | 2019-08-08 | 東亞合成株式会社 | 吸着剤及び消臭加工製品 |
JP2020049136A (ja) * | 2018-09-28 | 2020-04-02 | 松林工業株式会社 | 消臭用シートおよびこれを用いた消臭用複合シート |
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US20210307428A1 (en) * | 2020-04-03 | 2021-10-07 | Nanotek Instruments Group, Llc | Antiviral filtration element and filtration devices containing same |
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US20170367416A1 (en) | 2017-12-28 |
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TW201622777A (zh) | 2016-07-01 |
CN107105801A (zh) | 2017-08-29 |
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