Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
  • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F1/00—General methods for the manufacture of artificial filaments or the like
  • D01F1/02—Addition of substances to the spinning solution or to the melt
  • D01F1/10—Other agents for modifying properties
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
  • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
  • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/32—Phosphorus-containing compounds
  • C08K2003/321—Phosphates
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N2209/00—Properties of the materials
  • D06N2209/16—Properties of the materials having other properties
  • D06N2209/165—Odour absorbing, deodorizing ability
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N2211/00—Specially adapted uses
  • D06N2211/10—Clothing
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/08—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
  • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2401/00—Physical properties
  • D10B2401/06—Load-responsive characteristics
  • D10B2401/061—Load-responsive characteristics elastic
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2501/00—Wearing apparel
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2509/00—Medical; Hygiene

Definitions

• This disclosure relates to a fabric combining a polyester fiber and a polyurethane elastic yarn excellent in deodorizing effects for sweat odor and the distinctive body odor of the elderly.
• inorganic deodorants such as active carbon, silver-containing zeolites, zeolite, zinc oxide fine particles, and metal phosphates are used therefor. These inorganic deodorants are excellent in weather resistance and chemical resistance, and also have an excellent characteristic in which acute oral toxicity is low. In addition, because heat resistance is high, the deodorizing effects are not impaired even during the manufacturing or processing of the elastic fibers.
• the ratio of elastic fibers in the fabric (hereinafter, noted as the mixing ratio) must be significantly high and, therefore, there have been issues in that desired texture and physical properties cannot be obtained.
• the fabric according to (1) or (2) is stained by the cationic dye.
• a fabric having elasticity with excellent deodorizing effects for sweat odor and distinctive body odor of the elderly can be obtained. Therefore, a garment using such fabric can have an excellent deodorizing effect for sweat odor and distinctive body odor of the elderly.
• the fabric contains polyurethane elastic yarn and cationic dyeable polyester fiber.
• the deodorizing effects effective for acetic acid gas, isovaleric acid, nonenal that are originally possessed by polyurethane elastic yarn are obtained by containing the polyurethane elastic yarn where the mixing ratio within the fabric is 5 to 30 wt. %.
• the deodorizing effect for ammonia gas is demonstrated by cationic dye exhaustion seating by combining the cationic dyeable polyester fibers to become a fabric having deodorizing effects with good balance against sweat odor and distinctive body odor of the elderly. It is preferred that the mixing ratio of the cationic dyeable polyester fiber within a fabric is greater than or equal to 40 wt. % to demonstrate the deodorizing effect for ammonia gas, and it is preferred that the upper limit is less than or equal to 95 wt. % from the viewpoint of demonstrating the deodorizing effects for acetic acid gas, isovaleric acid, and nonenal. When a mixing ratio within the fabric of the cationic dyeable polyester fiber is 40 wt. % or less, the dyeing is preferred to be performed with a cationic dye.
• An amount of polyurethane elastic yarn and cationic dyeable polyester fiber sufficient to demonstrate the deodorizing effects can be ensured by having a weight of 10 cm ⁇ 10 cm to be greater than or equal to 1 g. Further, from the viewpoint of feeling and texture as use in a garment or the like, it is preferred that the weight of 10 cm ⁇ 10 cm is less than or equal to 7 g.
• the deodorant ratio for ammonia gas measured according to the detector tube method defined by Japan Textile Evaluation Technology Council for 0.15 g of polyurethane elastic yarn is greater than or equal to 40% for both after washing treatments of 0 times and 10 times.
• the deodorant ratio for ammonia gas measured according to the detector tube method defined by Japan Textile Evaluation Technology Council for 0.15 g of polyurethane elastic yarn is greater than or equal to 40% for both after washing treatments of 0 times and 10 times.
• the detector tube method defined by Japan Textile Evaluation Technology Council is a method of measuring in a prescribed sample how much ammonia gas is reduced in 2 hours, and the deodorant ratio of ammonia gas obtained by applying this method to 0.15 g of polyurethane elastic yarn becomes an indicator of the deodorant ratio of ammonia gas contributed by the polyurethane yarn itself in the fabric.
• the method of obtaining the polyurethane elastic yarn having such ammonia gas deodorant ratio is not particularly limited.
• those containing an inorganic deodorant having an ammonia gas deodorizing effect may be preferably used.
• the deodorizing characteristic for ammonia gas is allowed to be improved by containing an inorganic deodorant having deodorizing effects for ammonia gas without obstructing the deodorant power for acetic acid gas, nonenal gas, and isovaleric acid gas.
• zirconium, titanium, aluminum, metallic phosphates composed of calcium, zinc containing silica or the like may be used.
• at least one selected from a group composed of zirconium phosphate, titanium phosphate, or dihydrogen aluminum tripolyphosphate having a layer structure is preferable to use for the object of a deodorizing characteristic for ammonia, and particularly preferred is a zirconium phosphate.
• the metallic phosphate such as zirconium phosphate, is preferably one that does not carry a metallic ion such as a silver ion or copper ion for the object of a deodorizing characteristic for ammonia.
• the content amount of the inorganic deodorant is 0.5 to 10 wt. % with respect to the total mass of the polyurethane elastic yarn.
• the content of the inorganic deodorant is less than 0.5 wt. %, a sufficient ammonia gas deodorizing characteristic may hardly be obtained when using as a fabric. It is more preferable that the content is greater than or equal to 1.5 wt. %. Conversely, when the content exceeds 10 wt. %, deterioration of the elastic properties or increasing cost may occur. It is more preferable that the content is less than or equal to 7.0 wt. %. When considering a balance between the deodorizing characteristics and physical properties against ammonia gas to the cost, the content is particularly preferable 1.5 to 5.0 wt. %.
• the inorganic deodorant is preferably powder having less than or equal to 3.0 ⁇ m of an average primary particle size from the viewpoint of preventing the spinning solution clogging in the spinneret, and more particularly less than or equal to 1.5 ⁇ m. Further, when the average primary particle size is less than 0.05 ⁇ m, the cohesive force is increased and causes difficulty in mixing uniformly in the spinning solution and, therefore, the average primary particle size is preferred to be greater than or equal to 0.05 ⁇ m from the viewpoint of dispersibility.
• the polyurethane elastic yarn may contain a medical agent such as a light resistant agent, an antioxidant, a pigment or the like in addition to the inorganic deodorant.
• a medical agent such as a light resistant agent, an antioxidant, a pigment or the like in addition to the inorganic deodorant.
• hindered phenol based drugs such as “Sumilizer” (registered trademark) GA-80 manufactured by Sumitomo Chemical Co., Ltd.
• benzotriazole system such as various “Tinuvins” (registered trademark) manufactured by Ciba Geigy, benzophenone-based drugs, phosphorus-based drugs such as “Sumilizer” (registered trademark) P-16 manufactured by Sumitomo Chemical Co., Ltd., various hindered amine-based drugs, various pigments such as iron oxide, titanium oxide, inorganic materials such as zinc oxide, cerium oxide, magnesium oxide, calcium carbonate, carbon black, fluorine-based or silicon-based resin powders, metallic soaps such as magnesium stearate, lubricants such as mineral oil, various antistatic agents such as cerium oxide, betaine, or phosphoric acid are also preferred to be contained, and those are preferably reacted with a polymer.
• benzotriazole system such as various “Tinuvins” (registered trademark) manufactured by Ciba Geigy
• benzophenone-based drugs such as “Sumilizer” (registered trademark) P-16 manufactured by Sumi
• nitric oxide scavengers such as HN-150 manufactured by Japan Hydrazine Co., Ltd.
• thermal oxidation stabilizers such as “Sumilizer” (registered trademark) GA-80 manufactured by Sumitomo Chemical Co., Ltd.
• light stabilizers such as “Sumisorb” (registered trademark) 300#622 are also preferably used.
• the cationic dyeable polyester fiber used in our fabric will be described below.
• the cationic dyeable polyester fiber is a fiber obtained by copolymerizing a compound containing a metallic sulfonate group in the polyester molecular structure, and the definition herein is the same.
• Such cationic dyeable polyester fiber may be available in various types in which a type of compound containing a metallic sulfonate group or that in which the rate of copolymerization is different due to increasing of staining properties, improvement of texture or the like.
• the cationic dyeable polyester fiber can be used without being particularly limited as long as the staining properties are exhibited for normal cationic dye.
• the fabric preferably has a mixing ratio of the cationic dyeable polyester fiber greater than or equal to 40 wt. % to demonstrate the deodorizing effects with a proper balance, a mixing ratio of the polyurethane elastic yarn greater than or equal to 5 wt. % and less than 30 wt. %, and a mass of 10 cm ⁇ 10 cm greater than or equal to 1 g.
• a knitted fabric may be a regular polyester fiber or a combination of polyamide fiber, cotton or the like.
• the knitted fabric also is not particularly limited as long as the condition above is satisfied, and the knitted fabric may be made in any method such as circular knit, warp knit, tricot, raschel knit, or used as a covering finished yarn.
• the fabric is stained by cationic dye.
• the cationic dye in such case is not particularly limited even though there are a variety of types such as polymethins, azos, azamethines, anthraquinones, thiazoles, or the like, and a dye that is generally commercially available can be used under normal conditions.
• the cationic dye contains a counter ion, and a calboxylate anion, a sulfonate anion, a sulfate ester anion, phosphate ester anion or the like to demonstrate fabric deodorizing effects, particularly preferred is a sulfonate anion.
• softening finish, antibacterial treatment, water absorption treatment, water repellent treatment, antistatic treatment or the like may be provided properly.
• the fabric is a knitted fabric.
• a knitted fabric is preferable where a mixing ratio of the cationic dyeable polyester fiber is greater than or equal to 40 wt. %, a mixing ratio of the polyurethane elastic yarn is greater than or equal to 5 wt. % and less than 30 wt. %, and a mass of 10 cm ⁇ 10 cm is greater than or equal to 1 g, and as long as satisfying the configuration, it may be a combination of a regular polyester fiber, polyamide fiber, cotton or the like other than the polyurethane elastic yarn or cationic dyeable polyester fiber.
• polyurethane elastic yarn will be described below (hereinafter, the polyurethane configuring the polyurethane elastic yarn will be abbreviated as polyurethane).
• the polyurethane may be anything and not particularly limited as long as a polymer-diol and a diisocyanate are the starting materials.
• the synthesis method also is not particularly limited. That is, for example, polyurethane-urea composed of polymer diol, diisocyanate, and low molecular weight diamine, or polyurethane urethane composed of polymer diol, diisocyanate, and low molecular weight diol may be used. Also, polyurethane-urea in which a compound having a hydroxyl group and an amino group as chain extenders may be used.
• polyethers for the polymer diol, polyethers, polyester diols, polycarbonate diols or the like are preferred.
• a polyether diol is particularly preferred to be used from the viewpoint of providing flexibility and elasticity to yarn.
• polyether diol it is preferred that, for example, polyethylene oxide, polyethylene glycol, polyethylene glycol derivatives, polypropylene glycol, polytetramethylene ether glycol (hereinafter, abbreviated as PTMG), modified PTMG (hereinafter, abbreviated as 3M-PTMG) that is a copolymer of tetrahydrofuran (hereinafter, abbreviated as THF) and 3-methyl tetrahydrofuran, a modified PTMG that is a copolymer of THF and 2,3-dimethyl THF, polyol having a side chain on both sides disclosed in U.S. Pat. No.
• polyether diols may be of one kind or two or more kinds mixed or copolymerized.
• butylene adipate, polycaprolactone diol, polyester diols such as polyester polyol having a side chain disclosed in JP Unexamined Patent Application Publication No. S61-26612 and the like, or polycarbonate diols disclosed in JP Unexamined Patent Application Publication No. H02-289616 or the like is used.
• polymer diols may be used solely, or two or more types may be mixed or copolymerized.
• a number average molecular weight is preferably 1000 to 8000, and more preferably 1500 to 6000 from the viewpoint of obtaining elasticity, strength, heat resistance and the like.
• the number average molecular weight is measured by GPC, and converted by polystyrene (the same manner is applied for other ingredients and polymers below).
• an aromatic diisocyanate such as diphenylmethane diisocyanate (hereinafter, abbreviated as MDI), tolylene diisocyanate, 1,4-diisocyanate benzene, xylylene diisocyanate, 2,6-naphthalene diisocyanate, or the like, is particularly suitable to synthesize polyurethane for heat resistance and high strength.
• MDI diphenylmethane diisocyanate
• tolylene diisocyanate 1,4-diisocyanate benzene
• xylylene diisocyanate 1,4-diisocyanate
• 2,6-naphthalene diisocyanate 2,6-naphthalene diisocyanate
• an alicyclic diisocyanate for example, methylenebis (cyclohexyl isocyanate) (hereinafter, abbreviated as H12MDI), isophorone diisocyanate, methyl cyclohexane 2,4-diisocyanate, methyl cyclohexane 2,6-diisocyanate, cyclohexane 1,4-diisocyanate, hexahydroxylene diisocyanate, hexahydrotolylene diisocyanate, octahydro 1,5-naphthalene diisocyanate or the like is preferred.
• the aliphatic diisocyanate can be used effectively particularly when suppressing the yellow discoloration of the polyurethane elastic yarn.
• these diisocyanates may be used solely or in conjunction with two or more.
• At least one type of chain extender is used when synthesizing the polyurethane from among low molecular weight diols and low molecular weight diamines in which the molecular weight is less than or equal to 300. It may even have a hydroxyl group and an amino group such as ethanolamine.
• Preferred low molecular weight diamines include, for example, ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, hexamethylenediamine, p-phenylenediamine, p-xylylenediamine, m-xylylenediamine, p,p′-methylenedianiline, 1,3-cyclohexyldiamine, hexahydromethaphenilenediamine, 2-methyl pentamethylenediamine, bis(4-aminophenyl) phosphine oxide or the like. It is preferable that one more of these are used. Ethylenediamine is particularly preferred.
• Triamine compounds such as, for example, diethylene triamine that can form a cross-linked structure may be added to these chain extenders to an extent not to lose the efficacy.
• ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, bis hydroxyethoxybenzene, bis hydroxy ethylene terephthalate, 1-methyl-1, 2-ethanediol, or the like is a typical example. It is preferable that one or more types are used from among these. Ethylene glycol, 1, 3-propanediol, and 1, 4-butanediol are particularly preferred. Use of these enables the heat resistance to be further increased as polyurethane of a diol extension, and a higher strength yarn can be obtained.
• the molecular weight of the polyurethanes is preferably 30000 to 150000 as number average molecular weights from the viewpoint of obtaining fibers with durability and higher strengths.
• terminal sequestrants include monoamines such as dimethylamine, diisopropylamine, ethylmethylamine, diethylamine, methylpropylamine, isopropylmethylamine, diisopropylamine, butylmethylamine, isobutylmethylamine, isopentylmethylamine, dibutylamine, diamylamine or the like, monols such as ethanol, propanol, butanol, isopropanol, allyl alcohol, cyclopentanol or the like, monoisocyanates such as phenylisocyanate or the like.
• monoamines such as dimethylamine, diisopropylamine, ethylmethylamine, diethylamine, methylpropylamine, isopropylmethylamine, diisopropylamine, butylmethylamine, isobutylmethylamine, isopentylmethylamine, dibutylamine, diamylamine or the like
• monols
• the polyurethane elastic yarn is spun by containing an inorganic deodorant (for example, a metal phosphate such as zirconium phosphate) and a quaternary ammonium salt antibacterial or the like if necessary into the spinning solution including polyurethane obtained by using a polymer diol and a diisocyanate as starting materials.
• an inorganic deodorant for example, a metal phosphate such as zirconium phosphate
• a quaternary ammonium salt antibacterial or the like if necessary into the spinning solution including polyurethane obtained by using a polymer diol and a diisocyanate as starting materials.
• the manufacturing method for the polyurethane that is a solute may be either a melt polymerization process or a solution polymerization process, and may even be another method. Of them, the solution polymerization process is more preferred. In a solution polymerization process, foreign matter such as a gel are rarely generated in the polyurethane, spinning is easier, and
• the polyurethane of particular preferable includes those that are synthesized by using PTMG where a number average molecular weight is 1500 to 6000 as the polymer diol, MDI as the diisocyanate, and at least one of 1, 2-prooane diamine, 1, 3-propane diamine, hexamethylene diamine, or ethylenediamine as the chain extender.
• the polyurethane can be obtained by synthesizing using the ingredients described above in a solvent, for example, N, N-dimethylacetamide (hereinafter, abbreviated as DMAc), N, N-dimethylformamide (hereinafter, abbreviated as DMF), dimethyl sulfoxide (hereinafter, abbreviated as DMSO), N-methyl-2-pyrrolidone (hereinafter, abbreviated as NMP), or a solvent having the above as the primary ingredient.
• a solvent for example, N, N-dimethylacetamide (hereinafter, abbreviated as DMAc), N, N-dimethylformamide (hereinafter, abbreviated as DMF), dimethyl sulfoxide (hereinafter, abbreviated as DMSO), N-methyl-2-pyrrolidone (hereinafter, abbreviated as NMP), or a solvent having the above as the primary ingredient.
• a solvent for example, N, N-dimethylace
• Particularly preferred methods which may be used are, for example, the so-called one-shot process in which the polyurethane is made by putting all materials into such solvent, dissolving them, and performing the reaction by heating the solution to a suitable temperature, or a method in which the polyurethane is made by first melting and reacting the polymer diol and diisocyanate and then dissolving the reaction product in a solvent and reacting the chain extender described above or the like.
• a representative method may be accomplished by controlling the polymer diol, MDI, type of diol and ratio.
• polymer diol polymer diol
• MDI polymer diol
• type of diol polyurethane with a high-temperature melting point
• ratio ratio of the polymer diol
• polyurethane with a high-temperature melting point can be obtained by relatively increasing the ratio of MDI.
• polyurethane with a high-temperature melting point can be obtained by relatively reducing the ratio of the polymer diol.
• an inorganic deodorant such as a metal phosphate in such polyurethane solution.
• any method may be used.
• various means can be used such as a method using a static mixer, a method by stirring, a method by a Homo Mixer, a method using a twin-screw extruder or the like.
• an inorganic deodorant is contained in the polyurethane elastic yarn in a specified range.
• the inorganic deodorant above is preferably added to the polyurethane spinning solution that is a solvent of DMF, DMAc or the like, and then stirred and mixed to disperse it evenly.
• the inorganic deodorant is prepared to be a dispersion solution where DMF, DMA or the like is dispersed in advance, and the dispersion solution is mixed in the polyurethane spinning solution.
• the same solvent as the polyurethane solution for the dispersion medium used in the dispersion solution of the inorganic deodorant from the standpoint of performing adding evenly to the polyurethane solution.
• a medical agent such as a light resistance agent, an oxidation inhibitor, or a pigment may be added at the same time.
• the polyurethane yarn can be obtained by spooling the spinning solution configured as described above, for example, by dry spinning, wet spinning or melt spinning. Among them, the dry spinning is preferred from the standpoint of stability in spinning in all finenesses from very fine to thick yarn.
• the fineness and cross-sectional shape of the polyurethane elastic yarn has no particular limitation.
• the cross-sectional shape of the yarn may be a circular shape, or a flat shape.
• the dry spinning method is also not particularly limited, and the spinning method may be suitably selected according to the spinning conditions suitable to the desired characteristics and the spinning equipment.
• washing was conducted according to the washing method manual established by the Japanese Association for the Functional Evaluation of Textiles. That is, a household electric washing machine defined in washing method 103 in appendix table 1 of JIS L0217:1995 was used, washing liquid was prepared where 40 ml of the JAFET standard detergent (manufactured by Japanese Association for the Functional Evaluation of Textiles) in relation to the water 30 liters at 40 C.° was dissolved, and a washing material that was a 1 kg sample was placed in the washing liquid. Then, the washing material was washed for 5 minutes, span for dewatering, rinsed for two minutes, spun for dewatering, rinsed for 2 minutes, and spun for dewatering in this order, and this process was considered as one washing.
• the washing 10 times means repeating 10 times this series of operations
• washing 50 times means repeating 50 times this series of operations.
• a deodorizing test was conducted based on the standards of Deodorant Processed Textiles Certification Criteria (published by: Japan Textile Evaluation Technology Council, product authentication department, issued on Sep. 1, 2002), and the deodorizing effect evaluation of odorous components was conducted by an equipment test as follows.
• the sample (polyurethane elastic yarn 0.15 g) was placed into a Tedlar bag. 2.
• a required amount of test gas (ammonia gas: 100 ppm, acetic acid gas: 30 ppm) was injected, and the concentration of the gas remaining after two hours (ppm) was measured by the detector tube corresponding to the ingredient (manufactured by GASTEC Co.) to be the residual gas concentration of the sample test. Note that, the gas filling amount was 3 L, and the diluent gas was dry air or nitrogen gas. 3.
• the same evaluation was conducted without placing the sample in the Tedlar bag to be the residual gas concentration of the blank test. 4.
• the evaluation was made according to the following formula to calculate the deodorizing ratio:
• Deodorizing ⁇ ⁇ Ratio ⁇ ⁇ ( % ) ( Residual ⁇ ⁇ gas ⁇ ⁇ concentration ⁇ ⁇ of ⁇ ⁇ blank ⁇ ⁇ test - residual ⁇ ⁇ gas ⁇ ⁇ concentration ⁇ ⁇ of ⁇ ⁇ sample ⁇ ⁇ test ) ⁇ 100 Residual ⁇ ⁇ gas ⁇ ⁇ concentration ⁇ ⁇ of ⁇ ⁇ blank ⁇ ⁇ test .
• the deodorizing effect evaluation for odorous components was conducted in the same manner as the “Deodorizing Effects of Polyurethane Elastic Yarn” except using a 10 cm ⁇ 10 cm fabric in place of 0.15 g of the polyurethane elastic yarn to calculate the deodorizing ratio.
• the fabric deodorant effect is preferably 70% or greater in both ammonia and acetic acid in washing durability after washing 10 times, and further preferably 70% in both ammonia and acetic acid after washing 50 times.
• DMAc solution 35 wt. %) of polyurethane-urea polymer composed of ethylenediamine, MDI, and PTMG having a number average molecular weight of 1800, and diethylamine as the terminal sequestrant was prepared.
• a polyurethane solution DuPont Co. “Methacrol”TM 2462 D
• a condensation polymer of p-cresol and divinylbenzene DuPont Co. “Methacrol”TM 2390 D
• a circulation knit was made by a typical method for a fabric by using the polyurethane elastic yarn and cationic dyeable polyester fiber (type WFOF: manufactured by Toray Co, 84 decitex, 72 filament).
• the dyeing process was performed by using the obtained circular knit fabric as follows to obtain the dyed knitted fabric in which the mixing ratio of the polyurethane elastic yarn is 9 wt. %, and the mass of 10 cm ⁇ 10 cm was 1.3 g.
• Refining Process An aqueous solution of 2 g/L “Sunmol” BL650 (anionic surfactant produced by Nikka Chemical Co., Ltd.) was prepared and treated at 80° C. for 20 minutes.
• Presetting Treated at 190° C. ⁇ 1 minute at the tentering rate 30%.
• Dyeing Using a dye Kayacryl Black FB-ED (a cationic dye manufactured by Nippon Kayaku Co., Ltd.), and dyed for 60 minutes at 125° C. at a concentration of 8% owf. % owf shows a percentage of the mass of dyes with respect to the fiber mass in the dyebath.
• a circular knitted fabric was prepared using the polyurethane elastic yarn used in Example 1, and dying treatment was conducted according to the following method replacing the cationic polyurethane elastic yarn (Tetoron, Toray Co., 84 decitex and 72 filament) with a normal polyester fiber (Tetoron, Toray (Inc.), 84 decitex and 72 filament).
• Refining Process An aqueous solution of 2 g/L “Sunmol” BL650 (anionic surfactant produced by Nikka Chemical Co., Ltd.) was prepared and treated at 80° C. for 20 minutes.
• Presetting Treated at 190° C. ⁇ 1 minute at the tentering rate 30%.
• Dyeing Using a dye Dianix Tuxde Black F (trade name, manufactured by DyStar Japan Ltd., and dyed for 60 minutes at 125° C. at a concentration of 10% owf.
• Reduction Cleaning Treated at 80° C. for 20 minutes in a bath containing hydrosulfite 3.0 g/L, sodium hydroxide 1.5 g/L, Bisnol US-10 (trade name, manufactured by Ipposha Oil Industries, Co., Ltd.) 1.5 g/L.
• dihydrogen aluminum tripolyphosphate deodorant “K-FRESH” manufactured by TAYCA Co. (registered trademark) #100P (average primary particle size 1.0 ⁇ m) was dispersed in DMAc by a homomixer to make a dihydrogen aluminum tripolyphosphate dispersion B2 (35 wt. %).
• a ratio of 96 wt. % of the polymer solutions A1 and 4 wt. % of dihydrogen aluminum tripolyphosphate dispersion B2 were uniformly mixed to make the spinning solution C2, this was dry-spun in the same manner as Example 1, and 200 g of a wound polyurethane elastic yarn 22 decitex, 2 filament thread with the dihydrogen aluminum tripolyphosphate content of 4 wt. % was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a circular knitted fabric and the knitted fabric dyed thereof were then prepared as a fabric in the same manner as Example 1, and the evaluation was conducted on these.
• an inorganic deodorant “Shu-Clenase” (registered trademark) KD-211 manufactured by Rasa Industries, Ltd. was dispersed in DMAc by a homomixer to make a dispersion B3 (35 wt. %).
• a ratio of 96 wt. % of the polymer solutions A1 and 4 wt. % of dispersion liquid B3 were uniformly mixed to make the spinning solution C3, this was dry-spun in the same manner as Example 1, and 200 g of a wound polyurethane elastic yarn 22 decitex, 2 filament thread with the inorganic deodorant content of 4 wt. % was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a circular knitted fabric and a knitted fabric dyed thereof were then prepared as a fabric in the same manner as Example 1, and the evaluation was conducted on these.
• the polymer solutions A1 and B1 were uniformly mixed at 99 wt. % and 1 wt. % to make the spinning solution C4. This was dry-spun in the same manner as Example 1, and 200 g of a wound polyurethane elastic yarn 22 decitex, 2 filament with the inorganic deodorant content of 1 wt. % was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a circular knitted fabric and a knitted fabric dyed thereof were then prepared as a fabric in the same manner as Example 1, and the evaluation was conducted on these.
• the spinning solution C1 was dry-spun at a speed of 710 m/min. with a speed ratio of the godet rollers and the winder of 1.21, and 350 g of a wound polyurethane elastic yarn 44 decitex, 4 filament, with a inorganic deodorant content of 2 wt. % was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a two way tricot was then knitted as a fabric by a normal method using a cationic dyeable polyester fiber (type FS92: manufactured by Toray Co.) (mixing ratio 76%), and using the polyurethane elastic yarn (mixing rate 24%) of 44 decitex for a bag.
• the dyeing process was performed by using the obtained two way tricot as follows to obtain the dyed knitted fabric in which the mixing ratio of the polyurethane elastic yarn is 24 wt. %, and the mass of 10 cm ⁇ 10 cm was 1.88 g.
• Refining Process 2 g/L of anionic surfactant “Sunmol” (registered trademark) BL650 (manufactured by Nikka Chemical Co., Ltd.) and 1500 ppm of EDTA-based sequestrant “Acromar” (registered trademark) DH 700 (manufactured by Nagase chemteX Co.) were added to soft water of total hardness 10 ppm to prepare a solution as the treatment solution, and treated at 80° C. for 20 minutes by using the treatment solution.
• Presetting Treated at 190° C. ⁇ 1 minute at the tentering rate 30%.
• the deodorizing effects were measured on the knitted fabric after the preset treatment in (2), and each knitted fabric after dyeing in (3).
• Example 1 The cationic dye used in Example 1 was altered to 1, 3-dimethyl-1H-benzo(d)imidazole-2(3H-one and 2-amino-3-methyl benzolium chloride, and a dyeing fabric was made in the same matter as Example 1.
• Example 1 The cationic dye used in Example 1 was altered to 1, 3-dimethyl-1H-benzo(d)imidazol-2(3H)-one and 2-amino-3-methylbenzolium dimethyl sulfate, and a dyeing fabric was made in the same matter as Example 1.
• a knitted fabric that was a stained circular knitted fabric was prepared as the fabric in the same manner as Example 1 except using a fiber at a ratio of 40:51 of the cationic dyeable polyester fiber and a regular polyester fiber (type W20F: manufactured by Toray Co., 84 decitex 72 filament) instead of the cationic dyeable polyester fiber (type WFOF: manufactured by Toray Co., 84 decitex 72 filament) used in Example 1, and the evaluation was conducted.
• a circular knitted fabric and a knitted fabric dyed thereof were prepared as the fabric in the same manner as Example 1 except using a fiber at a ratio of 30:61 of the cationic dyeable polyester fiber and a regular polyester fiber (type W20F: manufactured by Toray Co., 84 decitex 72 filament) instead of the cationic dyeable polyester fiber (type WFOF: manufactured by Toray Co., 84 decitex 72 filament) used in Example 1, and the evaluation was conducted.
• a circular knitted fabric and the knitted fabric dyed thereof were prepared as a fabric in the same manner as Example 8 except dyeing treatment was conducted in the same manner as in Comparative Example 1, and the evaluation was conducted on these.
• the polymer solution A1 was dry-spun in the same manner as Example 1, and 200 g of a wound polyurethane elastic yarn 22 decitex, 2 filament was obtained. Evaluation of the deodorizing effects for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1. A circular knitted fabric and the knitted fabric dyed thereof were then prepared as a fabric in the same manner as Example 1, and the evaluation was conducted on these.
• a ratio of 99.5 wt. % of the polymer solutions A1 and 0.5 wt. % of the dispersion B3 was uniformly mixed to make the spinning solution C5. This was dry-spun in the same manner as Example 1, and 200 g of a wound polyurethane elastic yarn 22 decitex, 2 filament with the inorganic deodorant content of 0.5 wt. % was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a circular knitted fabric and the knitted fabric dyed thereof were then prepared as a fabric in the same manner as Example 1, and the evaluation was conducted on these.
• the polymer solution A1 was dry-spun in the same manner as Example 5, and 350 g of a wound polyurethane elastic yarn 44 decitex, 4 filament was obtained.
• the deodorizing effects evaluation for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1.
• a two way tricot and the dyed fabric thereof were then prepared as a fabric in the same manner as Example 5, and the evaluation was conducted on these.
• This spinning solution C3 was dry-spun in the same manner as Example 5, and 350 of a wound polyurethane elastic yarn 44 decitex, 4 filament with the inorganic deodorant content of 4 wt. % was obtained. Evaluation of the deodorizing effects for ammonia gas was conducted on the obtained polyurethane elastic yarn in the same manner as Example 1. Next, a regular polyester fiber (type S962): manufactured by Toray Co.) (mixing ratio 76%) was used and a two way tricot was knitted by a normal method as a fabric by using the polyurethane elastic yarn of 44 decitex Imixing (ratio 24%) for a bag. The dyeing process was performed as follows by using the obtained two way tricot to obtain the dyed knitted fabric in which the mixing ratio of the polyurethane elastic yarn is 24 wt. %, and the mass of 10 cm ⁇ 10 cm was 1.86 g.
• Refining Process 2 g/L of anionic surfactant “Sunmol” (registered trademark) BL650 (manufactured by Nikka Chemical Co., Ltd.) and 1500 ppm of EDTA-based sequestrant “Acromar” (registered trademark) DH 700 (manufactured by Nagase chemteX Co.) were added to soft water of total hardness 10 ppm to prepare a solution as a treatment solution, and treated at 80° C. for 20 minutes by using the treatment solution.
• Presetting Treated at 190° C. ⁇ 1 minute at the tentering rate 30%.
• the deodorizing effects were measured on the knitted fabric after the preset treatment in (2), and each knitted fabric after dyeing treatment in (4) was completed.
• a circular knitted fabric and the knitted fabric dyed thereof were prepared as a fabric in the same manner as comparative example 3 except changing the inorganic deodorant used in the comparative example 3 to 0.3 wt. %, and the evaluation was conducted on these.

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