Deodorant-containing processing liquid and method for producing deodorant product using the same

Abstract

This deodorant-containing processing liquid is characterized by having a viscosity of 50 mPa·s or more at 25°C, as measured using a B type viscometer, and by containing: a deodorant that contains a phosphate salt of a tetravalent metal; a surfactant; and an adhesive component. The tetravalent metal is preferably at least one type selected from among Zr, Hf, Ti and Sn. The phosphate salt of the tetravalent metal preferably has a specific surface area of 0.1-100 m2 / g and a median diameter of 0.1-100 μm. The surfactant is preferably anionic or non-ionic. The adhesive component is preferably a polymer compound.

Description

Technical Field

[0001] The present invention relates to a deodorant-containing processing liquid suitable for the production of a deodorant product having deodorizing performance against ammonia gas.

Background Art

[0002] In the air in living environments, workplace environments, etc., there are various gaseous pollutants such as malodors and harmful gases. In order to create a comfortable environment, deodorants for removing these gaseous pollutants or deodorant products equipped with them are widely used. Patent Document 1 discloses a deodorant mask, which is an example of a deodorant product, that is, a main body having a deodorant fiber layer including composite fibers in which a chemisorption-type deodorant such as CuO·SiO 2 composite oxide and zirconium phosphate is joined (attached) to the surface of the fiber by an adhesive composition. In order to form this deodorant fiber layer, for example, a deodorant-containing processing liquid containing a chemisorption-type deodorant, an adhesive composition, etc. is used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When there is only one deodorizing filter medium that makes up the deodorizing mask or the deodorizing filter, it is preferable that the attached deodorant is uniformly distributed in the thickness direction. These deodorizing filter media are, for example, after feeding out a base fabric such as a non-woven fabric from a base fabric sheet roll wound in a roll shape around a core, applying a deodorant-containing processing liquid containing a deodorant and an adhesive resin to the base fabric, and drying the coating film, it is made into a roll-shaped deodorizing cloth with the deodorant attached, and then this deodorizing cloth is cut into a predetermined size for manufacturing. At this time, it is common to dry the base fabric with the coating film while moving it in the lateral direction or the diagonal direction from the feeding side of the base fabric to the winding side of the deodorizing cloth. However, conventionally, when applying such a manufacturing method using a known deodorant-containing processing liquid, it has been found that there is a problem of uneven distribution of the attached deodorant in the obtained deodorizing cloth or deodorizing filter medium. Therefore, it has been desired to study whether it is possible to improve the efficiency of producing a deodorizing cloth or deodorizing filter medium having stable deodorizing performance with respect to a processing liquid containing a phosphate of a tetravalent metal such as zirconium phosphate having deodorizing performance for basic gases such as ammonia gas. The present invention aims to provide a deodorant-containing processing liquid that can sufficiently adhere a phosphate of a tetravalent metal such as zirconium phosphate that chemically adsorbs basic gases such as ammonia gas to a base material, has excellent processability, and can efficiently produce a deodorizing product having excellent deodorizing performance particularly for ammonia gas.

Means for Solving the Problems

[0005] The inventors of the present invention, as a deodorant-containing processing liquid containing a phosphate of a tetravalent metal such as zirconium phosphate used for adhering a phosphate of a tetravalent metal such as zirconium phosphate to a base material in a state where a basic gas such as ammonia gas is easily adsorbed, further containing a surfactant and an adhesive component and having a specific viscosity, have found that a deodorizing product having excellent deodorizing performance for basic gases, particularly ammonia gas, can be efficiently produced, and thus completed the present invention.

[0006] The present invention is shown below. 1. A deodorant-containing processing liquid containing a phosphate of a tetravalent metal, a surfactant, and an adhesive component, and having a viscosity at 25 °C of 50 mPa·s or more as measured by a B-type viscometer. 2. The deodorant-containing processing liquid according to item 1 above, wherein the tetravalent metal is at least one selected from Zr, Hf, Ti, and Sn. 3. The deodorant-containing processing liquid according to item 1 or 2 above, wherein the content of the surfactant is 0.01 to 30 parts by mass with respect to 100 parts by mass of the deodorant. 4. The deodorant-containing processing liquid according to any one of items 1 to 3 above, wherein the surfactant is at least one selected from an anionic surfactant and a nonionic surfactant. 5. The deodorant-containing processing liquid according to any one of items 1 to 4 above, wherein the specific surface area of the phosphate of the tetravalent metal is 0.1 to 100 m 2 / g. 6. The deodorant-containing processing liquid according to any one of items 1 to 5 above, wherein the median diameter of the phosphate of the tetravalent metal is 0.1 μm to 100 μm. 7. The deodorant-containing processing liquid according to any one of items 1 to 6 above, wherein the adhesive component contains a polymer compound. 8. The deodorant-containing processing liquid according to any one of items 1 to 7 above, further containing water. 9. The deodorant-containing processing liquid according to any one of items 1 to 8 above, further containing a thickener. 10. A method for manufacturing a deodorant product, comprising a step of applying the deodorant-containing processing liquid according to any one of items 1 to 9 above to a substrate to form a coating film on the surface of the substrate, and a step of drying the coating film. 11. A deodorant product comprising a substrate and a deodorant-containing portion joined to at least a part of the surface of the substrate, wherein the deodorant-containing portion contains a phosphate of a tetravalent metal, a surfactant, and an adhesive component. 12. The deodorant product according to item 11 above, wherein the substrate has a sheet shape containing fibers, and the deodorant product is a deodorant filter medium.

Advantages of the Invention

[0007] The deodorant-containing processing liquid of the present invention is excellent in the dispersibility and stability of the contained components, has a high adhesion amount of a deodorant containing a phosphate of a tetravalent metal, and is suitable for the production of a deodorant product excellent in deodorizing performance against basic gases, particularly ammonia gas. By using a deodorant-containing processing liquid containing a phosphate of a tetravalent metal selected from Zr, Hf, Ti, and Sn, a deodorant product excellent in deodorizing performance against ammonia gas can be efficiently produced. According to the method for producing a deodorant product of the present invention, a deodorant product having high deodorizing performance against basic gases such as ammonia gas can be efficiently produced.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0009] The deodorant-containing processing liquid of the present invention contains a deodorant containing a phosphate of a tetravalent metal, a surfactant, and an adhesive component, and is characterized in that the viscosity at 25 °C measured by a B-type viscometer is 50 mPa·s or more. After applying the deodorant-containing processing liquid of the present invention to a substrate and drying the formed coating film, an adhesive component causes at least a deodorant containing a phosphate of a tetravalent metal to adhere to the substrate, thereby producing a deodorant product. Phosphates of tetravalent metals such as zirconium phosphate are deodorants having chemisorption performance against basic gases such as ammonia gas. The deodorant-containing processing liquid of the present invention provides a deodorant product having high deodorant performance against at least ammonia gas. Incidentally, the deodorant-containing processing liquid of the present invention can further contain other deodorants (described later) that chemisorb basic gases or other malodorous gases, and additives, if necessary. Hereinafter, a deodorant containing a phosphate of a tetravalent metal, a surfactant, an adhesive component, other components, a method for producing a deodorant-containing processing liquid, and a method for producing a deodorant product will be described.

[0010] 1. Deodorant Containing Phosphate of Tetravalent Metal The deodorant according to the present invention is a deodorant containing a phosphate of a tetravalent metal as an essential component and having chemisorption performance against at least basic gases. Also, as will be described in detail later, the deodorant can optionally contain a deodorant other than the phosphate of the tetravalent metal (hereinafter referred to as "other deodorant"). Hereinafter, the phosphate of the tetravalent metal and other deodorants will be described.

[0011] 1-1. Phosphate of Tetravalent Metal The phosphate of the tetravalent metal is preferably a compound represented by the following general formula (1) and is insoluble or hardly soluble in water. H a M b (PO 4 )c·nH 2 O (1) (In the formula, M is a tetravalent metal atom, a, b, and c are numbers that satisfy the formula: a + 4b = 3c, and n is 0 or a positive number.) Examples of M in the general formula (1) include Zr, Hf, Ti, Sn, etc. M in the compound of the general formula (1) may be a single atom or a combination of two or more atoms. Preferable specific examples of the phosphate of the tetravalent metal include zirconium phosphate, hafnium phosphate, titanium phosphate, tin phosphate, and the like. These compounds include crystalline and amorphous ones having various crystal systems such as α-type, β-type, and γ-type, and any of them can be preferably used. Among these, zirconium phosphate is particularly preferable because it has a high chemical adsorption capacity for ammonia and is easily available industrially.

[0012] The above zirconium phosphate is preferably a compound represented by the following formula (2). Zr 1-x Hf x H a (PO 4 ) b ·nH 2 O (2) (In the formula, 0 ≦ x ≦ 0.2, 2 < b ≦ 2.1, a is a number satisfying 3b - a = 4, and 0 ≦ n ≦ 2.)

[0013] In the above formula (2), x is preferably 0.005 ≦ x ≦ 0.1 because the chemical adsorption capacity for ammonia is particularly high.

[0014] The shape of the above phosphate of the tetravalent metal is not particularly limited, but it is usually granular, and the median diameter measured by a laser diffraction particle size distribution analyzer is preferably 0.1 to 100 μm, more preferably 0.2 to 50 μm, and still more preferably 0.3 to 10 μm. Also, the specific surface area measured by the BET method calculated from the nitrogen adsorption amount is preferably 0.1 to 100 m 2 / g, more preferably 0.5 to 100 m 2 / g, and still more preferably 1 to 100 m 2 / g from the viewpoint of deodorizing properties such as ammonia gas.

[0015] 1-2. Other deodorants The deodorant-containing processing liquid of the present invention can contain other deodorants that are deodorants other than the phosphate of the tetravalent metal. Other deodorants can be those types and in those proportions such that the resulting deodorant product does not reduce the deodorizing performance of basic gases. Other deodorants can be those having deodorizing performance against malodorous gases such as basic gases such as ammonia gas and trimethylamine; acidic gases such as acetic acid and isovaleric acid; aldehyde-based gases such as formaldehyde, acetaldehyde, and nonenal; and sulfur-based gases such as hydrogen sulfide and methyl mercaptan.

[0016] As deodorants for basic gases, there are amorphous composite oxides such as zeolite, Al 2 O 3 , SiO 2 , MgO, CaO, SrO, BaO, ZrO 2 , TiO 2 , WO 2 , CeO 2 , Li 2 O, Na 2 O, and K 2 O, etc. As deodorants for acidic gases, there are hydrotalcite-based compounds such as zirconium hydroxide, zirconium oxide, and magnesium-aluminum hydrotalcite. As deodorants for aldehyde-based gases, there are hydrazine-based compounds such as adipic acid dihydrazide, carbohydrazide, succinic acid dihydrazide, and oxalic acid dihydrazide, and aminoguanidine salts such as aminoguanidine hydrochloride, aminoguanidine sulfate, and aminoguanidine bicarbonate. As deodorants for sulfur-based gases, there are copper silicate, copper zirconium phosphate hydrate, zinc oxide, zinc aluminum oxide, zinc silicate, zinc aluminum silicate, and layered zinc aluminosilicate.

[0017] When using other deodorants, the usage ratio is preferably 1 to 10,000 parts by mass, more preferably 5 to 2,000 parts by mass, with respect to 100 parts by mass of the usage amount of the phosphate of the tetravalent metal.

[0018] 2. Surfactant The surfactant is not particularly limited, and any of an anionic surfactant, a cationic surfactant, a nonionic surfactant, and an amphoteric surfactant may be used. Among these, from the viewpoint of the dispersibility of the phosphate of a tetravalent metal, an anionic surfactant and a nonionic surfactant are particularly preferable. The preferable surfactant contained in the deodorant-containing processing liquid of the present invention may be either an anionic surfactant or a nonionic surfactant, or both.

[0019] Examples of the anionic surfactant include carboxylic acid-based anionic surfactants, sulfonic acid-based anionic surfactants, sulfuric acid-based anionic surfactants, and phosphoric acid-based anionic surfactants. Hereinafter, the anionic surfactant will be specifically exemplified. The "salt" is an alkali metal salt (lithium salt, sodium salt, potassium salt, etc.), an alkaline earth metal salt (magnesium salt, calcium salt, etc.), an ammonium salt, or an amine salt (monoethanolamine salt, diethanolamine salt, triethanolamine salt, monoisopropanolamine salt, etc.).

[0020] Examples of the carboxylic acid-based anionic surfactant include polycarboxylates, aliphatic carboxylates, alkyl ether carboxylates, alkenyl succinates, N-acyl amino acid salts, amide ether carboxylates, and acyl lactates. Among these, polycarboxylates are preferable.

[0021] Examples of the polycarboxylate salts include salts of homopolymers or copolymers containing structural units derived from acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, maleic anhydride, etc. Specifically, salts such as polyacrylic acid, polymethacrylic acid, polymaleic acid, polymaleic anhydride, maleic acid / isobutylene copolymer, maleic anhydride / isobutylene copolymer, maleic acid / diisobutylene copolymer, maleic anhydride / diisobutylene copolymer, acrylic acid / itaconic acid copolymer, methacrylic acid / itaconic acid copolymer, maleic acid / styrene copolymer, maleic anhydride / styrene copolymer, acrylic acid / methacrylic acid copolymer, acrylic acid / methyl acrylate copolymer, acrylic acid / vinyl acetate copolymer, acrylic acid / maleic acid copolymer, and acrylic acid / maleic anhydride copolymer can be used.

[0022] Examples of the aliphatic carboxylate salts include aliphatic carboxylate salts containing an alkyl group having 8 to 20 carbon atoms, such as caproate, caprylate, caprate, laurate, myristate, palmitate, stearate, and oleate.

[0023] Examples of the alkyl ether carboxylate salts include (poly)oxyethylene alkyl ether acetates and (poly)oxyethylene alkyl ether propionates. Specifically, alkyl ether carboxylate salts containing an alkylene group having 14 to 60 carbon atoms, such as oxyethylene oleyl ether acetate, polyoxyethylene lauryl ether acetate, polyoxyethylene stearyl ether acetate, polyoxyethylene hexylphenyl ether acetate, polyoxyethylene tridecyl ether acetate, polyoxyethylene lauryl ether propionate, and alkyl glycol acetate, can be used.

[0024] Examples of the alkenyl succinate salts include alkenyl succinate salts (mono-salts or di-salts) containing an alkenyl group having 8 to 22 carbon atoms. Examples of the N-acyl amino acid salts include N-acyl glutamate salts, N-acyl aspartate salts, N-acyl-β-alanine salts, N-acyl methylalanine salts, N-acyl glycine salts, N-acyl proline salts, and N-acyl sarcosine salts. Specifically, N-lauroyl-β-alanine arginine, N-lauroyl-β-alanine potassium, N-lauroyl-β-alanine triethanolamine, N-lauroyl-N-carboxymethyl-β-alanine sodium, sodium N-lauroyl glutamate, disodium N-stearoyl-L-glutamate, and sodium N-lauroyl sarcosine can be used.

[0025] Examples of the amide ether carboxylate salts include fatty acid alkanolamide ether carboxylate salts and polyoxyalkylene alkylamide ether carboxylate salts.

[0026] Examples of the sulfonic acid-based anionic surfactants include alkane sulfonate salts, α-olefin sulfonate salts, alkylbenzene sulfonate salts, alkylnaphthalene sulfonate salts, alkyldiphenyl ether disulfonate salts, alkyl glycidyl ether sulfonate salts, lignin sulfonate salts, α-sulfo fatty acid ester salts, acyl isethionate salts, alkyl sulfosuccinate salts, alkyl sulfoacetate salts, N-acyl methyl taurine salts, formalin-condensed sulfonate salts, and melamine sulfonate salts.

[0027] Examples of the alkane sulfonate salts include alkane sulfonate salts having 8 to 18 carbon atoms such as 1-octane sulfonate salt, 2-octane sulfonate salt, 1-decane sulfonate salt, 2-decane sulfonate salt, 1-dodecane sulfonate salt, and 2-dodecane sulfonate salt. Examples of the α-olefin sulfonate salts include α-olefin sulfonate salts having 8 to 18 carbon atoms such as tetradecene sulfonate salt.

[0028] Examples of the above alkylbenzenesulfonate include p-toluenesulfonate and dodecylbenzenesulfonate. Examples of the above alkylnaphthalenesulfonate include monoalkylnaphthalenesulfonate and dialkylnaphthalenesulfonate. Specifically, methylnaphthalenesulfonate, ethylnaphthalenesulfonate, propylnaphthalenesulfonate, isopropylnaphthalenesulfonate, butylnaphthalenesulfonate, isobutylnaphthalenesulfonate, dimethylnaphthalenesulfonate, diethylnaphthalenesulfonate, diisopropylnaphthalenesulfonate, dibutylnaphthalenesulfonate, diisobutylnaphthalenesulfonate, and methylnonylnaphthalenesulfonate can be used.

[0029] Examples of the above alkyldiphenyl ether disulfonate include alkyldiphenyl ether disulfonate containing an alkyl group having 1 to 20 carbon atoms. Specifically, nonyldiphenyl ether disulfonate, dodecyldiphenyl ether disulfonate, and stearyldiphenyl ether disulfonate can be used. Examples of the above α-sulfo fatty acid ester salt include α-sulfo fatty acid alkyl ester salts in which the fatty acid residue has 8 to 18 carbon atoms. Specifically, methyl 2-sulfolaurate and polyoxyethylene fatty acid methyl ester can be used. Examples of the above acyl isethionate include lauroyl isethionate and coconut oil fatty acid ethyl ester sulfonate. Examples of the above alkyl sulfosuccinate include alkyl sulfosuccinates containing an alkyl group having 8 to 18 carbon atoms, such as dioctyl sulfosuccinate, di-2-ethylhexyl sulfosuccinate, and lauryl sulfosuccinate; and polyoxyethylene alkyl sulfosuccinates such as polyoxyethylene lauryl sulfosuccinate in which the polyoxyethylene group has 8 to 18 carbon atoms. Examples of the alkylsulfacetate include alkylsulfacetates containing an alkyl group having 8 to 18 carbon atoms, such as laurylsulfacetate. Examples of the N-acylmethyltaurine salt include lauroylmethyltaurine salt, myristoylmethyltaurine salt, palmitoylmethyltaurine salt, stearoylmethyltaurine salt, and coconut oil fatty acid methyltaurine salt. Examples of the formalin-condensed sulfonate include formalin condensates of naphthalenesulfonate, formalin condensates of alkylnaphthalenesulfonate, formalin condensates of melaminesulfonic acid, and formalin condensates of alkylmelaminesulfonic acid.

[0030] Examples of the sulfuric acid-based anionic surfactant include alkyl sulfates, alkyl ether sulfates, alkyl aryl ether sulfates, fatty acid alkanolamide sulfates, and fatty acid monoglyceride sulfates.

[0031] Examples of the alkyl sulfate include lauryl sulfate, stearyl sulfate, and cetyl sulfate. Examples of the alkyl ether sulfate include POE lauryl ether sulfate and POE tridecyl ether sulfate. Examples of the alkyl aryl ether sulfate include polyoxyethylene nonylphenyl ether sulfate. Examples of the fatty acid alkanolamide sulfate include polyoxyethylene alkyl coconut oil fatty acid monoethanolamide sulfate. Examples of the fatty acid monoglyceride sulfate include hardened coconut oil fatty acid glyceryl sulfate.

[0032] Examples of the phosphoric acid-based anionic surfactant include alkyl phosphates, polyoxyalkylene alkyl ether phosphates, alkyl aryl ether phosphates, fatty acid amide ether phosphates, and glycerin fatty acid ester monophosphates. Examples of the above alkyl phosphates include lauryl phosphate, myristyl phosphate, palmityl phosphate, stearyl phosphate and the like. Examples of the above polyoxyalkylene alkyl ether phosphates include polyoxyethylene lauryl ether phosphate, polyoxyethylene alkyl (C12-15) ether phosphate, polyoxyethylene cetyl ether phosphate, polyoxyethylene oleyl ether phosphate, polyoxyethylene stearyl ether phosphate and the like. Examples of the above alkyl aryl ether phosphates include polyoxyethylene nonylphenyl ether phosphate and the like. Examples of the above fatty acid amide ether phosphates include polyoxyethylene alkyl monoethanolamide phosphate and the like.

[0033] As the above anionic surfactant, a sulfonic acid-based anionic surfactant is preferred, and an alkyl sulfosuccinate is particularly preferred.

[0034] Examples of the nonionic surfactant include polyoxyalkylene alkyl ether which is an adduct of alkylene oxide to aliphatic alcohol; polyoxyalkylene phenyl ether or polyoxyalkylene alkyl phenyl ether (polyoxyalkylene aryl ether) which is an adduct of alkylene oxide to aromatic alcohol; glycerin fatty acid ester; polyoxyalkylene glycerin fatty acid ester which is an adduct of alkylene oxide to glycerin fatty acid ester; polyoxyalkylene pentaerythritol fatty acid ester which is an adduct of alkylene oxide to pentaerythritol fatty acid ester; polyoxyalkylene fatty acid ester which is an adduct of alkylene oxide to fatty acid; sorbitan fatty acid ester; polyoxyalkylene sorbitan fatty acid ester which is an adduct of alkylene oxide to sorbitan fatty acid ester; sucrose fatty acid ester; pentaerythritol fatty acid ester; polyoxyalkylene alkyl amine which is an adduct of alkylene oxide to aliphatic amine; polyoxyalkylene fatty acid amide which is an adduct of alkylene oxide to fatty acid amide; polyoxyalkylene (hydrogenated) castor oil; polyoxyalkylene modified polysiloxane; polyglyceryl modified silicone; glyceryl modified silicone; sugar modified silicone; perfluoropolyether surfactant; polyoxyethylene·polyoxypropylene block copolymer; and alkyl polyoxyethylene·polyoxypropylene block copolymer ether. Among these, polyoxyalkylene modified polysiloxane is preferred.

[0035] From the viewpoints of the stability of the deodorant-containing processing liquid and the dispersibility of the phosphate of tetravalent metal, when the total amount of the deodorant containing the phosphate of tetravalent metal is 100 parts by mass, the content ratio of the surfactant contained in the deodorant-containing processing liquid is preferably 0.01 to 30 parts by mass, more preferably 0.05 to 15 parts by mass, and still more preferably 0.1 to 10 parts by mass.

[0036] 3. Adhesive component The subsequent component is a component for adhering a deodorant containing a phosphate of a tetravalent metal to a base material containing at least one of an inorganic material and an organic material in the production of a deodorant product, preferably a polymer compound, which may be any of a synthetic polymer, a semi-synthetic polymer, and a natural polymer. Examples of the polymer compound include resins and polysaccharides, etc., and a resin is preferred. Incidentally, the adhesive component contained in the deodorant-containing processing liquid of the present invention can be one kind or two or more kinds.

[0037] The above resin may be either a water-soluble resin or a water-insoluble resin, such as an ethylene-vinyl acetate copolymer or a modified product thereof (acid-modified product, etc.), an ethylene-vinyl chloride copolymer, a vinyl chloride-vinyl acetate copolymer, polyvinyl acetate, polyvinyl chloride, a modified olefin resin (chlorinated polyolefin, etc.), polyvinyl alcohol, an alkyl cellulose, a carboxyalkyl cellulose, a carboxyalkyl hydroxyalkyl cellulose, polyacrylic acid, a polyacrylate, an acrylic resin, a polyester resin, a urethane resin, a styrene-butadiene copolymer, a styrene-isoprene copolymer, a styrene-butadiene-styrene block copolymer, a styrene-ethylene-butylene-styrene block copolymer, a styrene-ethylene-propylene-styrene block copolymer, a hydrogenated styrene-butadiene-styrene block copolymer, a hydrogenated styrene-ethylene-butylene-styrene block copolymer, a hydrogenated styrene-ethylene-propylene-styrene block copolymer, and a styrene-maleic anhydride copolymer, etc. Among these, a polyester resin is preferred because it has less odor derived from the resin.

[0038] The polyester resin may be either an aromatic polyester or an aliphatic polyester, or a combination thereof may be used. Also, the above polyester may be either a saturated polyester or an unsaturated polyester. As the above polyester, a saturated polyester composed of a polycondensate obtained by using an acid component and a hydroxyl group-containing component is preferred, -SO 3 H, -SO 3 Na, -SO 3-、 -COOH、 -COO-、 -OPO(OH) 2 It may also be a polyester to which hydrophilic groups such as -OPO(OH)O- are bonded.

[0039] Examples of the acid component include terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, 4,4'-diphenyldicarboxylic acid, trimellitic acid, trimesic acid, pyromellitic acid, benzoic acid, p-hydroxybenzoic 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, hexahydroorthophthalic acid, and methyl esters, anhydrides, etc. of these di-, tri-, or tetra-carboxylic acids.

[0040] Examples of the acid component having a hydrophilic group include sulfonate-based compounds such as sodium 5-sulfoisophthalate, ammonium 5-sulfoisophthalate, sodium 4-sulfoisophthalate, ammonium 4-methylsulfonatoisophthalate, sodium 2-sulfoisophthalate, potassium 5-sulfoisophthalate, potassium 4-sulfoisophthalate, and potassium 2-sulfoisophthalate.

[0041] Examples of the hydroxyl group-containing component 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, trimethylolpropane, trimethylolethane, glycerin, pentaerythritol, bisphenol-based ethylene oxide adduct, bisphenol-based propylene oxide adduct, 1,4-cyclohexanedimethanol, 1,4-cyclohexanediol, 1,3-cyclohexanedimethanol, 1,3-cyclohexanediol, hydrogenated bisphenol A, spiroglycol, tricyclodecanediol, tricyclodecanedimethanol, resorcinol, and 1,3-bis(2-hydroxyethoxy)benzene, etc.

[0042] The above polyester resin can be obtained by known methods such as the melt polymerization method, solution polymerization method, and solid-phase polymerization method. In addition, the hydrophilic group can be introduced by known methods. When introducing -COO-, for example, after a polycondensation reaction using trimellitic anhydride, trimellitic acid, pyromellitic anhydride, pyromellitic acid, trimesic acid, cyclobutane tetracarboxylic acid, dimethylolpropionic acid, etc., a method of subjecting it to a neutralization reaction using an amino compound, ammonia, or an alkali metal salt is applicable.

[0043] The molecular weight of the above resin is not particularly limited, and those known as adhesives can be used. However, the number average molecular weight is, for example, 1,000 to 1,000,000, and for another example, 2,000 to 500,000, and for another example, 3,000 to 100,000, and for another example, 4,000 to 50,000.

[0044] Since the deodorant-containing processing liquid of the present invention contains a surfactant, the above adhesive component preferably has water solubility or hydrophilicity (in the case of water insolubility).

[0045] From the viewpoint of the adhesiveness of the deodorant in the obtained deodorant product, the content ratio of the adhesive component contained in the deodorant-containing processing liquid of the present invention is preferably 5 to 1,000 parts by mass, more preferably 10 to 500 parts by mass, and still more preferably 15 to 100 parts by mass when the total amount of the deodorant containing the phosphate of the tetravalent metal is 100 parts by mass.

[0046] 4. Deodorant-containing processing liquid The deodorant-containing processing liquid of the present invention contains the deodorant containing the phosphate of the tetravalent metal, the surfactant, and the adhesive component described above as essential components, but may contain other components as necessary.

[0047] The deodorant-containing processing liquid of the present invention usually contains a medium. Examples of the medium include only water or a mixture of water and a water-soluble organic solvent, and water is preferred. Examples of the water-soluble organic solvent include alcohols such as methyl alcohol, ethyl alcohol, and isopropyl alcohol. The content ratio of the medium contained in the deodorant-containing processing liquid of the present invention is not particularly limited, but the medium is contained such that the content ratio of the deodorant containing the phosphate of the tetravalent metal is preferably 0.1 to 50% by mass, more preferably 0.5 to 40% by mass, and still more preferably 1 to 30% by mass with respect to the deodorant-containing processing liquid.

[0048] The deodorant-containing processing liquid of the present invention has a viscosity at 25°C measured by a B-type viscometer (hereinafter simply referred to as "viscosity") of 50 mPa·s or more, preferably 70 mPa·s or more, more preferably 100 mPa·s or more. In general, the viscosity can be measured using a No. 2 rotor at a rotation speed of 60 rpm or 30 rpm. However, a processing liquid with such a high viscosity that it cannot be measured under the above conditions can also be used. In that case, it can be measured by appropriately combining an appropriate rotor and rotation speed. However, from the perspective of the productivity of deodorant products, for example, the upper limit of the viscosity can preferably be set to 1000 mPa·s.

[0049] Even when the viscosity of the deodorant-containing processing liquid of the present invention is 50 mPa·s or more, since it contains a surfactant, it has excellent dispersibility of the contained components, is easy to handle, and has excellent coatability on the substrate. Therefore, the deodorant-containing processing liquid of the present invention is suitable for the production of deodorant products with a high adhesion amount of a deodorant containing a phosphate of a tetravalent metal.

[0050] The viscosity of the deodorant-containing processing liquid of the present invention can be appropriately adjusted from the types, structures, particle sizes, molecular weights, composition ratios, and concentrations of the respective constituent components such as deodorants, surfactants, adhesive components, and media, etc. However, it is preferable to adjust it using a thickening agent or the like described later as a viscosity modifier.

[0051] The deodorant-containing processing liquid of the present invention can further contain an additive as another component. Examples of the additive include viscosity modifiers such as thickening agents, defoamers, colorants, fragrances, antibacterial agents, antiviral agents, anti-allergen agents, and preservatives.

[0052] As the thickener, known ones can be used and there is no particular limitation. For example, polysaccharides, acrylic polymers, associative polyurethanes, carboxyvinyl compounds, clay minerals, etc. can be mentioned. Among these, polysaccharides and acrylic polymers are preferred. Specifically, examples of polysaccharides include xanthan gum, alginate, gum arabic, starch, tamarind seed gum, guar gum, carboxymethyl cellulose, etc. Examples of acrylic polymers include polyacrylic acid, sodium polyacrylate, ammonium polyacrylate, acrylic acid copolymers, sodium salts of acrylic acid copolymers, ammonium salts of acrylic acid copolymers, crosslinked polyacrylic acid, crosslinked sodium polyacrylate, and crosslinked acrylic polymers, etc. By adding a thickener, the addition amount of processing liquid components such as deodorants can be set to an appropriate amount so as not to be excessive, for example. In this case, the productivity of deodorant processing is improved, which is preferable. When the total amount of the deodorant containing the phosphate of a tetravalent metal is 100 parts by mass, the content ratio of the thickener is preferably 0.1 to 10 parts by mass, more preferably 0.7 to 7 parts by mass, and still more preferably 0.5 to 5 parts by mass.

[0053] As the method for producing the deodorant processing liquid of the present invention, an ordinary method may be followed. For example, it can be produced by mixing a deodorant containing a phosphate of a tetravalent metal, a surfactant, an adhesive component, and a medium such as water. In this case, it can also be produced by adding and mixing a deodorant containing a phosphate of a tetravalent metal, a surfactant, and an adhesive component in a medium such as water. As the surfactant, it is preferably used as an aqueous solution or an aqueous dispersion. When producing the deodorant processing liquid of the present invention, if necessary, the raw material components can also be stirred under heating.

[0054] 5. Method for producing a deodorant product The deodorant-containing processing liquid of the present invention is suitable as a material for producing a deodorant product by attaching a deodorant containing a phosphate of a tetravalent metal to the surface of a substrate. The method for manufacturing the deodorant product of the present invention comprises a step of applying a deodorant-containing processing liquid to a substrate to form a coating film composed of the deodorant-containing processing liquid on the surface of the substrate (hereinafter referred to as the "coating film forming step"), and a step of drying the coating film (hereinafter referred to as the "drying step").

[0055] In the above coating film forming step, depending on the shape of the substrate and the like, padding, dipping, coating, spraying, printing, etc. are applied to apply the deodorant-containing processing liquid to the surface of the substrate to form a coating film.

[0056] The above substrate is not particularly limited, and can be an article containing an inorganic material, an organic material, or a combination of these materials, and its shape is also not particularly limited. As the above substrate, resin molded products such as films, granular bodies, and general molded products (including foamed resin molded products); fibers; sheet-like articles such as non-woven fabrics and woven fabrics containing fibers can be used. In the above coating film forming step, since the viscosity of the deodorant-containing processing liquid to be used is 50 mPa·s or more, the desired deodorant attachment amount can be achieved without the need for multiple coatings.

[0057] In the above drying step, depending on the shape of the substrate and the like, sealed heating, hot air heating, etc. are applied to remove the medium from the coating film, and a deodorant-containing part (deodorant film) is formed on the surface of the substrate. Incidentally, the drying temperature is not particularly limited, and is appropriately selected depending on the type of the medium contained in the deodorant-containing processing liquid and the like, and is preferably 100 to 150°C.

[0058] As described above, in the embodiment of the present invention, since a deodorant-containing processing liquid having a high content ratio of the phosphate of the tetravalent metal and excellent dispersibility can be used, it is not necessary to repeat the coating film forming step and the drying step in order to manufacture a deodorant product containing the deodorant containing the phosphate of the tetravalent metal at a desired content ratio, and the target deodorant product can be efficiently manufactured.

[0059] The deodorant product of the present invention is an article comprising a base material and a deodorant-containing part containing a phosphate of a tetravalent metal joined to the surface of the base material. The deodorant-containing part contains a surfactant and an adhesive component contained in the deodorant-containing processing liquid. The amount of the phosphate of the tetravalent metal adhered is preferably 0.1 g / m 2 or more, more preferably 0.5 g / m 2 or more.

[0060] A preferred base material in the present invention is a sheet-like article containing fibers. For example, a deodorant filter medium using a non-woven fabric as the base material is a typical deodorant product. This deodorant filter medium can be one in which the phosphate of the tetravalent metal is adhered only to one side of the non-woven fabric, or one in which the phosphate of the tetravalent metal is adhered to both sides of the non-woven fabric. In addition, fibers (only) are also preferred base materials, and deodorant fibers with the phosphate of the tetravalent metal adhered to the surface of the fibers are also typical deodorant products. Using this deodorant fiber, a woven fabric or a non-woven fabric can be manufactured to obtain a deodorant fiber sheet for use in a deodorant filter medium or the like. Further, it can also be applied to processed products such as clothing such as underwear, socks, and aprons; clothing for nursing care; daily necessities such as cushions, futons, blankets, rugs, sofas, curtains, and covers; and seat materials for vehicles.

Examples

[0061] Hereinafter, embodiments of the present invention will be described more specifically by way of examples, but the present invention is not limited to these examples. In the following, "parts" and "%" are based on mass unless otherwise specified.

[0062] 1. Raw materials of the deodorant-containing processing liquid The raw materials used for the production of the deodorant-containing processing liquid are shown below.

[0063] 1-1. Deodorant (1) Zirconium phosphate It is α-zirconium phosphate, and the median diameter measured by a laser diffraction particle size distribution measuring device "MS2000" (model name) manufactured by Malvern is 1 μm, and the BET specific surface area is 10 m2 Particles with a specific surface area of (2) Copper silicate Particles with a median diameter of 3 μm and a BET specific surface area of 500 m 2 / g (3) Zeolite Particles with a median diameter of 3 μm and a BET specific surface area of 350 m 2 / g (4) Activated zinc oxide Particles with a median diameter of 2 μm and a BET specific surface area of 100 m 2 / g (5) Zirconium hydroxide Particles with a median diameter of 2 μm and a BET specific surface area of 300 m 2 / g

[0064] 1 - 2. Adhesive component A saturated polyester resin (number average molecular weight 16,000) was used.

[0065] 1 - 3. Aqueous solution or aqueous dispersion of surfactant (1) An anionic surfactant "Ricacurf M - 30" (trade name) manufactured by Shin Nippon Rika Co., Ltd., which is an aqueous solution mainly composed of sodium di(2 - ethylhexyl) sulfosuccinate, was used. (2) "BYK - 349" (trade name) manufactured by BYK Chemie Japan Co., Ltd., which is an aqueous dispersion mainly composed of a polyether - modified siloxane, a nonionic surfactant, was used. (3) A water - soluble acrylic acid - based dispersant "T - 50" (trade name) manufactured by Toagosei Co., Ltd., which contains an anionic surfactant, was used. (4) "DISPERBYK - 193" (trade name) manufactured by BYK Co., Ltd., a nonionic surfactant, was used.

[0066] 1 - 4. Thickener (1) An aqueous xanthan gum solution was used. (2) An aqueous carboxymethyl cellulose (hereinafter referred to as "CMC") solution was used. (3) An acrylic thickener "A - 20L" (trade name) manufactured by Toagosei Co., Ltd. was used.

[0067] 2. Manufacture and Evaluation of Deodorant-Containing Processing Liquid A deodorant-containing processing liquid was manufactured by using a deodorant, an adhesive component, an aqueous solution or an aqueous dispersion of a surfactant, water, and a thickener in the proportions described in Tables 1 and 2. Thereafter, using this deodorant-containing processing liquid and a nonwoven fabric made of PET fibers, a longitudinal deodorant fiber sheet was obtained by dipping and drying at 130°C. Then, it was cut into a predetermined size, and the deodorization rate was calculated by the following method to evaluate the deodorizing property. Using a resin film test bag, gas bags of ammonia (initial concentration 200 ppm), methyl mercaptan (initial concentration 70 ppm), acetaldehyde (initial concentration 30 ppm), hydrogen sulfide (initial concentration 120 ppm), or acetic acid (initial concentration 100 ppm) were prepared. The deodorant fiber sheet was cut into a size of φ25 mm micro syringe holder and one sheet was set in the holder. The gas was passed through the deodorant fiber sheet by the suction force of the gas sampler, and the concentration of the malodorous gas after passing was measured with a detector tube to calculate the deodorization rate.

[0068] 2-1. Examples 2-1-1. Example 1 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, an aqueous xanthan gum solution, an aqueous solution of an anionic surfactant (Likasurf M-30), and pure water were mixed to manufacture a deodorant-containing processing liquid having the composition shown in Table 1. Next, the viscosity at 25°C and 60 rpm was measured using a B-type viscometer (No. 2 rotor) manufactured by Toki Sangyo Co., Ltd. Thereafter, a deodorant fiber sheet was manufactured using this deodorant-containing processing liquid by the method described above, and the deodorizing property was evaluated (see Table 1). The amount of the deodorant adhered to the deodorant fiber sheet was 2 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles 2 The photographs (300 times) of the state of adhesion of the deodorant to the deodorant fiber sheet thus manufactured, observed with a scanning electron microscope "S-4800" manufactured by Hitachi High-Technologies Corporation (hereinafter abbreviated as SEM), are shown in FIGS. 1 and 2.

[0069] 2-1-2. Example 2 Zirconium phosphate particles, zeolite particles, saturated polyester resin, CMC aqueous solution, an aqueous dispersion of nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 12 g / m of zirconium phosphate particles 2 and 12 g / m of zeolite particles 2 is.

[0070] 2-1-3. Example 3 Zirconium phosphate particles, zinc oxide active particles, saturated polyester resin, CMC aqueous solution, an aqueous solution of anionic surfactant (Likasurf M-30), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 3 g / m of zirconium phosphate particles 2 and 3 g / m of zinc oxide active particles 2 is.

[0071] 2-1-4. Example 4 Zirconium phosphate particles, zirconium hydroxide particles, saturated polyester resin, CMC aqueous solution, an aqueous dispersion of nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 4.5 g / m of zirconium phosphate particles 2 and 14 g / m of zirconium hydroxide particles 2 is.

[0072] 2-1-5. Example 5 Zirconium phosphate particles, copper silicate particles, saturated polyester resin, zirconium hydroxide particles, xanthan gum aqueous solution, aqueous solution of anionic surfactant (Ricacire M-30), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 4 g / m of zirconium phosphate particles 2 and 8 g / m of copper silicate particles 2 and 4 g / m of zirconium hydroxide particles 2 is.

[0073] 2-1-6. Example 6 Zirconium phosphate particles, zirconium hydroxide particles, zinc oxide particles, saturated polyester resin, CMC aqueous solution, aqueous dispersion of nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 1, the viscosity was measured. However, since it was measured at a high viscosity and could not be measured, the viscosity was measured under the conditions of 25 °C, 30 rpm, and No. 2 rotor. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 8 g / m of zirconium phosphate particles 2 and 12 g / m of zirconium hydroxide particles 2 and 6 g / m of zinc oxide particles 2 is.

[0074] 2-1-7. Example 7 Zirconium phosphate particles, copper silicate particles, zeolite particles, saturated polyester resin, xanthan gum aqueous solution, aqueous solution of anionic surfactant (Ricacire M-30), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 6, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 3 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles2 and 12 g / m of zeolite particles 2 It is.

[0075] 2-1-8. Example 8 Zirconium phosphate particles, zirconium hydroxide particles, zeolite particles, a saturated polyester resin, an aqueous xanthan gum solution, an aqueous dispersion of a nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 6, the viscosity was measured. And a deodorant fiber sheet was produced and a deodorizing property evaluation was performed (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 4 g / m of zirconium phosphate particles 2 10 g / m of zirconium hydroxide particles 2 and 10 g / m of zeolite particles 2 It is.

[0076] 2-1-9. Example 9 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, an aqueous xanthan gum solution, an aqueous dispersion of an anionic surfactant (T-50), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and a deodorizing property evaluation was performed (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 2 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles 2 It is.

[0077] 2-1-10. Example 10 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, an aqueous xanthan gum solution, an aqueous dispersion of a nonionic surfactant (DISPERBYK-193), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and a deodorizing property evaluation was performed (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 2 g / m of zirconium phosphate particles 2and 6 g / m of copper silicate particles 2 It is.

[0078] 2-1-11. Example 11 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, an acrylic thickener (A-20L), an aqueous solution of an anionic surfactant (Ricacire M-30), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 1. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 1). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 2 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles 2 It is.

[0079] 2-2. Comparative Examples 2-2-1. Comparative Example 1 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 2). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 2 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles 2 It is. Photographs (300 times) of the state of attachment of the deodorant to the deodorant fiber sheet thus produced observed by SEM are shown in FIGS. 3 and 4.

[0080] 2-2-2. Comparative Example 2 Zirconium phosphate particles, copper silicate particles, a saturated polyester resin, an aqueous xanthan gum solution, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and the deodorizing property was evaluated (see Table 2). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 2 g / m of zirconium phosphate particles 2 and 6 g / m of copper silicate particles 2 It is.

[0081] 2-2-3. Comparative Example 3 Zirconium phosphate particles, zeolite particles, a saturated polyester resin, an aqueous solution of a nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and subjected to deodorizing property evaluation (see Table 2). Note that the amount of the deodorant attached to the deodorant fiber sheet is 12 g / m of zirconium phosphate particles 2 and 12 g / m of zeolite particles 2 is.

[0082] 2-2-4. Comparative Example 4 Zirconium phosphate particles, zinc oxide active particles, a saturated polyester resin, an aqueous solution of CMC, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and subjected to deodorizing property evaluation (see Table 2). Note that the amount of the deodorant attached to the deodorant fiber sheet is 3 g / m of zirconium phosphate particles 2 and 3 g / m of zinc oxide active particles 2 is.

[0083] 2-2-5. Comparative Example 5 Zirconium phosphate particles, zirconium hydroxide particles, a saturated polyester resin, an aqueous solution of an anionic surfactant (Likasurf M-30), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Thereafter, the viscosity was measured in the same manner as in Example 1. Then, a deodorant fiber sheet was produced and subjected to deodorizing property evaluation (see Table 2). Note that the amount of the deodorant attached to the deodorant fiber sheet is 4.5 g / m of zirconium phosphate particles 2 and 14 g / m of zirconium hydroxide particles 2 is.

[0084] 2-2-6. Comparative Example 6 Zirconium phosphate particles, copper silicate particles, zirconium hydroxide particles, saturated polyester resin, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 2). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 4 g / m of zirconium phosphate particles 2 , 8 g / m of copper silicate particles 2 and 4 g / m of zirconium hydroxide particles 2 .

[0085] 2-2-7. Comparative Example 7 Zirconium phosphate particles, zirconium hydroxide particles, activated zinc oxide particles, saturated polyester resin, CMC aqueous solution, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 6, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 2). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 8 g / m of zirconium phosphate particles 2 , 12 g / m of zirconium hydroxide particles 2 and 6 g / m of activated zinc oxide particles 2 .

[0086] 2-2-8. Comparative Example 8 Zirconium phosphate particles, copper silicate particles, zeolite particles, saturated polyester resin, xanthan gum aqueous solution, and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 6, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was carried out (see Table 2). Incidentally, the amount of the deodorant attached to the deodorant fiber sheet is 3 g / m of zirconium phosphate particles 2 , 6 g / m of copper silicate particles 2 and 12 g / m of zeolite particles 2 .

[0087] 2-2-9. Comparative Example 9 Zirconium phosphate particles, zirconium hydroxide particles, zeolite particles, a saturated polyester resin, an aqueous solution of a nonionic surfactant (BYK-349), and pure water were mixed to produce a deodorant-containing processing liquid having the composition shown in Table 2. Then, in the same manner as in Example 1, the viscosity was measured. And a deodorant fiber sheet was produced and deodorizing property evaluation was conducted (see Table 2). In addition, the amount of the deodorant attached to the deodorant fiber sheet is 4 g / m of zirconium phosphate particles 2 , 10 g / m of zirconium hydroxide particles 2 and 10 g / m of zeolite particles 2 .

[0088]

Table 1

[0089]

Table 2

[0090] 2-3. Evaluation It is clear from Tables 1 and 2 that the following is the case. Comparative Examples 2, 4, 7, and 8 are examples of deodorant-containing processing liquids having a viscosity of 50 mPa·s or more, but are examples in which no surfactant is used. Compared with the corresponding Examples 1, 3, 6, 7, 9, 10, and 11, respectively, the deodorizing property of ammonia gas by zirconium phosphate was not sufficient. Moreover, Comparative Examples 1, 3, 5, 6, and 9 are examples of deodorant-containing processing liquids having a viscosity of less than 50 mPa·s. The appearance of the deodorant fiber sheet was not good. Also, compared with the corresponding Examples 2, 4, 5, and 8, respectively, the deodorizing property of ammonia gas by zirconium phosphate was not sufficient.

[0091] It is clear from FIGS. 1 to 4 as follows. FIGS. 3 and 4 are SEM images of the deodorant fiber sheet of Comparative Example 1 of the deodorant processing liquid having a viscosity of less than 50 mPa·s. The deodorant is significantly localized on the back surface (FIG. 4) of the deodorant fiber sheet, and the adhesion to the fiber surface is also non-uniform. On the other hand, in the corresponding Example 1, as shown in FIGS. 1 and 2, the deodorant is present evenly on both the front and back surfaces, and the uniformity of adhesion to the fiber surface is also high.

Industrial Applicability

[0092] The deodorant-containing processing liquid of the present invention is easy to apply to various substrates and is suitable for the production of deodorant products (deodorant filter materials, deodorant papers, deodorant films, etc.) having excellent deodorizing performance for ammonia gas. Among the deodorant products of the present invention, the deodorant filter material is useful as a component of a deodorant mask, a deodorant filter, a deodorant device, etc., for example, in medical, nursing, excretion sites, sewage treatment plants, waste treatment plants (incinerators), fertilizer factories, chemical factories, etc. In addition, the deodorant product of the present invention can be suitably used for environmental purification at sites where materials that generate ammonia gas are handled.

Claims

1. A processing liquid containing a deodorant for non-woven fabrics, which is used for non-woven fabrics, contains a deodorant containing a phosphate of a tetravalent metal, a surfactant, a thickener, and an adhesive component, and has a viscosity at 25 °C measured by a B-type viscometer of 50 mPa·s or more. The thickener is a polysaccharide, an acrylic polymer, or a carboxyvinyl compound. When the total amount of the deodorant containing a phosphate of a tetravalent metal is 100 parts by mass, the content ratio of the thickener is 0.1 to 10 parts by mass. The deodorant further contains at least one selected from copper silicate, zeolite, zinc oxide, and zirconium hydroxide. A processing liquid containing a deodorant for non-woven fabrics, characterized in that the adhesive component is a saturated polyester (excluding a processing liquid containing an aminoguanidine acidic salt).

2. The processing liquid containing a deodorant for non-woven fabrics according to Claim 1, wherein the tetravalent metal is at least one selected from Zr, Hf, Ti, and Sn.

3. The processing liquid containing a deodorant for non-woven fabrics according to Claim 1 or 2, wherein the content of the surfactant is 0.01 to 30 parts by mass with respect to 100 parts by mass of the deodorant.

4. The processing liquid containing a deodorant for non-woven fabrics according to any one of Claims 1 to 3, wherein the surfactant is at least one selected from an anionic surfactant and a nonionic surfactant.

5. The specific surface area of the phosphate of the tetravalent metal is 0.1 to 100 m ２ / g, and the processing liquid containing a deodorant for nonwoven fabrics according to any one of claims 1 to 4.

6. The processing liquid containing a deodorant for non-woven fabrics according to any one of Claims 1 to 5, wherein the median diameter of the phosphate of the tetravalent metal is 0.1 μm to 100 μm.

7. The processing liquid containing a deodorant for non-woven fabrics according to any one of Claims 1 to 6, further containing water.

8. A method for manufacturing a deodorant product, comprising a step of applying the processing liquid containing a deodorant for non-woven fabrics according to any one of Claims 1 to 7 to a non-woven fabric to form a coating film on the surface of the non-woven fabric, and a step of drying the coating film.

Images