WO2012053401A1 - ポリウレタン弾性糸およびその製造方法 - Google Patents
ポリウレタン弾性糸およびその製造方法 Download PDFInfo
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- WO2012053401A1 WO2012053401A1 PCT/JP2011/073398 JP2011073398W WO2012053401A1 WO 2012053401 A1 WO2012053401 A1 WO 2012053401A1 JP 2011073398 W JP2011073398 W JP 2011073398W WO 2012053401 A1 WO2012053401 A1 WO 2012053401A1
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- polyurethane
- elastic yarn
- weight
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- phosphate
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- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
-
- 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
- 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
- D01F1/103—Agents inhibiting growth of microorganisms
-
- 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
Definitions
- the present invention relates to a polyurethane elastic yarn having excellent antibacterial and deodorizing properties and excellent discoloration resistance, and suitable for obtaining a fabric having antibacterial and deodorizing properties and a method for producing the same. About.
- Elastic fibers are widely used for elastic clothing such as legwear, innerwear, and sportswear, sanitary applications such as disposable diapers and sanitary napkins, and industrial materials due to their excellent elastic properties.
- antibacterial products such as antibacterial cosmetics
- deodorant products such as clothes and bedding that have a deodorizing function against aging odors and the like have come to the market.
- the antibacterial agents used in these products many inorganic antibacterial agents, particularly silver antibacterial agents, are seen.
- the deodorizer include activated carbon, silver-containing zeolite, zeolite, and fine zinc oxide.
- the above-mentioned inorganic antibacterial agent has excellent properties such as excellent weather resistance and chemical resistance and low acute oral toxicity as compared with organic antibacterial agents.
- the heat resistance is significantly higher than that of organic antibacterial agents.
- inorganic antibacterial agents have been added to synthetic resins and used in many fields.
- the molded product discolors due to the effect of the metal contained in the inorganic antibacterial agent and the effect of heat and light irradiated on the molded product. The problem that the product value is significantly reduced is likely to occur.
- Patent Document 1 many techniques for suppressing thermal discoloration of an antibacterial resin to which an inorganic antibacterial agent is added have been proposed.
- Patent Document 1 certain performance is recognized in antibacterial and deodorant properties, but yellowing resistance is greatly discolored depending on the environment and time, and it cannot be said that the problem has been completely solved.
- hinokitiol which is a natural antibacterial agent as an organic antibacterial agent and a metal oxide and / or a composite metal oxide containing at least one element selected from Zn, Si, Cu, Ni, Fe, Al and Mg
- Patent Document 2 An antibacterial and deodorant polyurethane elastic fiber (Patent Document 2) containing styrene has been proposed, and certain performance is recognized for the antibacterial and deodorant properties of the polyurethane elastic yarn.
- hinokitiol which is an antibacterial agent, is sublimated by heat reception during dry spinning, it is necessary to add a large amount to the spinning dope beforehand.
- hinokitiol which is a natural antibacterial agent is expensive, there is a problem in terms of cost.
- Patent Document 3 organic synthetic antibacterial agents
- An object of the present invention is to provide a polyurethane elastic yarn excellent in antibacterial and deodorizing properties and excellent in discoloration resistance and a method for producing the same.
- a polyurethane elastic yarn comprising a polyurethane starting from a polymer diol and a diisocyanate, wherein the polyurethane elastic yarn contains a metal phosphate and has a leaching amount of a monoamine compound having a molecular weight of 120 or less of 100 ⁇ g / m 2 or more.
- the polyurethane elastic yarn according to (1) wherein the content of the metal phosphate is 0.5 wt% or more and 10 wt%.
- a metal phosphate is mixed with a spinning stock solution containing polyurethane starting from a polymer diol and a diisocyanate, and a monoamine compound having a molecular weight of 120 or less is contained in an amount of 0.01% by weight or more to the spinning stock solution.
- (10) The method for producing a polyurethane elastic yarn according to (9), wherein the metal phosphate is mixed as a dispersion into a spinning stock solution containing a polyurethane starting from the polymer diol and diisocyanate.
- (11) The polyurethane elastic yarn according to (9) or (10), wherein the metal phosphate is at least one selected from the group consisting of titanium phosphate, zirconium phosphate, and aluminum dihydrogen phosphate. Manufacturing method.
- (12) The method for producing a polyurethane elastic yarn according to any one of (9) to (11), wherein the monoamine compound having a molecular weight of 120 or less is a secondary amine compound.
- a polyurethane elastic yarn excellent in stretchability, deodorant properties, antibacterial properties, and discoloration resistance can be obtained. Therefore, a fabric using such a polyurethane elastic yarn has excellent stretchability, deodorant properties, antibacterial properties, and discoloration resistance.
- the polyurethane used in the present invention is not particularly limited as long as it uses a polymer diol and a diisocyanate as starting materials.
- the synthesis method is not particularly limited. That is, for example, it may be a polyurethane urea composed of a polymer diol, diisocyanate and a low molecular weight diamine, or may be a polyurethane urethane composed of a polymer diol, diisocyanate and a low molecular weight diol.
- numerator as a chain extender may be used. It is also preferable to use trifunctional or higher polyfunctional glycol or isocyanate or the like as long as the effects of the present invention are not hindered.
- the polymer diol is preferably a polyether-based, polyester-based diol, polycarbonate diol or the like.
- a polyether diol is preferably used from the viewpoint of imparting flexibility and elongation to the yarn.
- polyether diol examples include polyethylene oxide, polyethylene glycol, polyethylene glycol derivatives, polypropylene glycol, polytetramethylene ether glycol (hereinafter abbreviated as PTMG), tetrahydrofuran (THF), and a copolymer of 3-methyltetrahydrofuran.
- PTMG polytetramethylene ether glycol
- THF tetrahydrofuran
- a modified PTMG hereinafter abbreviated as 3M-PTMG
- 3M-PTMG a modified PTMG that is a copolymer of THF and 2,3-dimethyl THF
- THF Random copolymers in which ethylene oxide and / or propylene oxide are randomly arranged are preferably used.
- These polyether diols may be used alone or in combination of two or more.
- polyester diols such as butylene adipate, polycaprolactone diol, polyester polyols having side chains disclosed in JP-A No. 61-26612, and the like, Polycarbonate diols disclosed in JP-B-2-289516 and the like are preferably used.
- polymer diols may be used alone or in combination of two or more.
- the molecular weight of the polymer diol is preferably a number average molecular weight of 1000 or more and 8000 or less, and more preferably 1500 or more and 6000 or less, from the viewpoint of obtaining elongation, strength, heat resistance and the like when formed into a yarn.
- a polyol having a molecular weight within this range an elastic yarn excellent in elongation, strength, elastic recovery, and heat resistance can be easily obtained.
- aromatic diisocyanates such as diphenylmethane diisocyanate (hereinafter abbreviated as MDI), tolylene diisocyanate, 1,4-diisocyanate benzene, xylylene diisocyanate, and 2,6-naphthalene diisocyanate are particularly suitable for heat resistance and strength. It is suitable for synthesizing a high polyurethane.
- MDI diphenylmethane diisocyanate
- tolylene diisocyanate 1,4-diisocyanate benzene
- xylylene diisocyanate 1,4-diisocyanate benzene
- 2,6-naphthalene diisocyanate 2,6-naphthalene diisocyanate
- alicyclic diisocyanate for example, methylene bis (cyclohexyl isocyanate) (hereinafter referred to as H12MDI), isophorone diisocyanate, methylcyclohexane 2,4-diisocyanate, methylcyclohexane 2,6-diisocyanate, cyclohexane 1,4-diisocyanate, hexa Hydroxylylene diisocyanate, hexahydrotolylene diisocyanate, octahydro 1,5-naphthalene diisocyanate and the like are preferable.
- Aliphatic diisocyanates can be used effectively particularly in suppressing yellowing of polyurethane elastic yarns. And these diisocyanates may be used independently and may use 2 or more types together.
- a low molecular weight diamine and a low molecular weight diol as the chain extender used for synthesizing the polyurethane.
- 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, hexahydrometaphenylenediamine, 2-methylpentamethylenediamine, bis (4-aminophenyl) phosphine oxide and the like. It is preferable that 1 type (s) or 2 or more types are used among these. Particularly preferred is ethylenediamine.
- ethylenediamine By using ethylenediamine, a yarn excellent in elongation, elastic recovery, and heat resistance can be easily obtained. You may add the triamine compound which can form a crosslinked structure in these chain extenders, for example, diethylenetriamine, etc. to such an extent that an effect is not lost.
- Typical low molecular weight diols include ethylene glycol, 1,3 propanediol, 1,4 butanediol, bishydroxyethoxybenzene, bishydroxyethylene terephthalate, 1-methyl-1,2-ethanediol, and the like. is there. It is preferable that 1 type (s) or 2 or more types are used among these. Particularly preferred are ethylene glycol, 1,3 propanediol, and 1,4 butanediol. When these are used, the diol-extended polyurethane has higher heat resistance, and a yarn having higher strength can be obtained.
- the molecular weight of the polyurethane is preferably in the range of 30000 to 150,000 as the number average molecular weight from the viewpoint of obtaining a fiber having high durability and strength.
- the molecular weight is measured by GPC and converted by polystyrene.
- one or more terminal blocking agents are used in the polyurethane.
- monoamines such as dimethylamine, diisopropylamine, ethylmethylamine, diethylamine, methylpropylamine, isopropylmethylamine, diisopropylamine, butylmethylamine, isobutylmethylamine, isopentylmethylamine, dibutylamine, diamylamine, Monools such as ethanol, propanol, butanol, isopropanol, allyl alcohol, cyclopentanol, and monoisocyanates such as phenyl isocyanate are preferred.
- a metal phosphate in a polyurethane elastic yarn made of polyurethane having the above basic structure, acetic acid gas, nonenal gas, isovaleric acid originally possessed by the polyurethane elastic yarn It is possible to improve the deodorizing property for ammonia gas without inhibiting the deodorizing property for the gas.
- a monoamine compound having a molecular weight of 120 or less is contained in the polyurethane elastic yarn so that the emission amount from the polyurethane elastic yarn is 100 ⁇ g / m 2 or more, preferably 100 ⁇ g / m 2 or more and 500 ⁇ g / m 2 or less. Therefore, it becomes possible to have excellent antibacterial properties.
- the metal phosphate in the present invention is preferably an acidic phosphate of a tetravalent metal such as zirconium phosphate or titanium phosphate having a layered structure, aluminum dihydrogen phosphate, and the like from the viewpoint of deodorizing properties. More preferably, it is zirconium phosphate. These may be used alone or in combination of two or more.
- the content of the metal phosphate is preferably in the range of 0.5% by weight to 10% by weight with respect to the total weight of the polyurethane elastic yarn.
- the content of the metal phosphate is less than 0.5% by weight, it is difficult to obtain a sufficient deodorizing property of ammonia gas when used as a fabric, which is not preferable. More preferably, it is 1.0% by weight or more.
- the content exceeds 10% by weight, it is not preferable in terms of deterioration of stretchability and cost. More preferably, it is 7.0 weight% or less. In consideration of the balance of deodorizing property with respect to ammonia gas, physical properties, and cost, a range of 1.5 wt% or more and 5.0 wt% or less is particularly preferable.
- the metal phosphate preferably has an average primary particle diameter of 3.0 ⁇ m or less from the viewpoint of suppressing clogging of the spinning dope into the spinneret. More preferably, it is 1.5 ⁇ m or less. Also, from the viewpoint of dispersibility, when the average primary particle size is smaller than 0.05 ⁇ m, the cohesive force increases and it becomes difficult to mix uniformly into the spinning dope, so that the average primary particle size is 0.05 ⁇ m or more. preferable. More preferably, it is 0.15 ⁇ m or more.
- the emission amount of the monoamine compound having a molecular weight of 120 or less from the polyurethane elastic yarn is added to the spinning stock solution containing polyurethane. It is preferable to contain and spin in the following range. That the monoamine compound content in the spinning dope is less than 0.01% by weight means that the spun polyurethane elastic yarn does not contain sufficient monoamine, and as a result, sufficient antibacterial properties cannot be obtained. It will be. On the other hand, when the monoamine compound is contained in the spinning dope so as to be 0.5% by weight or more, the quality such as yellowing property of the obtained polyurethane elastic yarn is deteriorated.
- the monoamine compound having a molecular weight of 120 or less is used as an end-blocking agent when synthesizing polyurethane instead of adding a monoamine after polymerization, so that the emission amount of the monoamine compound in the polyurethane elastic yarn is 100 ⁇ g / m 2 or more. It is also possible.
- a mixture of a chain extender such as a diamine compound and the monoamine compound in advance.
- the ratio of the amino group in the chain extender to the amino group of the monoamine compound is preferably in the range of 5: 1 to 25: 1. More preferably, it is in the range of 5: 1 to 20: 1.
- the amount of the mixture of the chain extender and the monoamine compound used in the reaction is such that the molar ratio of the isocyanate group concentration to the amino end group concentration during the reaction is in the range of 1: 1.04 to 1: 1.15. It is preferable to do so. As a result, a polymer solution containing more amino groups than during normal polymerization is produced, and the monoamine emission amount can be ensured to be 100 ⁇ g / m 2 or more even in the spun yarn.
- Monoamine compounds having a molecular weight of 120 or less include secondary amine compounds such as diethylamine, dimethylamine, diisopropylamine, ethylmethylamine, N-methylpropylamine, isopropylmethylamine, N-butylmethylamine, and N-methylisobutylamine.
- Secondary amine compounds such as ethylamine, N-propylamine, isopropylamine, N-butylamine, and cyclohexylmonoamine. From the viewpoint of stability of the polyurethane spinning dope, a secondary amine compound is preferred.
- the polyurethane elastic yarn as described above preferably contains a quaternary ammonium salt compound in order to further enhance antibacterial properties.
- Quaternary ammonium salt compounds have a difference in antibacterial activity depending on the chain length of the alkyl group in the ammonium ion. If the difference length of the alkyl group is long, the antibacterial activity tends to be relatively high. On the other hand, if the chain length is too short, it is liable to volatilize or deteriorate due to heat during spinning. On the other hand, when the difference length of the alkyl group is too long, the handleability is deteriorated. Therefore, it is preferable to select a chain type such as an alkyl group and a chain length so as to obtain desired characteristics.
- ammonium ions from the viewpoint of antibacterial activity are stearyl trimethyl ammonium ion, cetyl trimethyl ammonium ion, didecyl dimethyl ammonium ion, oleyl trimethyl ammonium ion and the like.
- These usually have the following structure, which is supplied by organic acid salts such as sulfonates and phosphates and salts such as chlorides, bromides, and iodides.
- organic acid salts such as sulfonates and phosphates and salts such as chlorides, bromides, and iodides.
- sulfonates are preferable from the viewpoint of stability such as discoloration and heat resistance.
- the salt having the above structure include didecyldimethylammonium trifluoride methylsulfonate, di-n-decyldimethylammonium trifluoromethanesulfonate, di-n-decyldimethylammonium pentafluoroethanesulfonate, n-hexadecyltrimethylammonium trifluoromethanesulfonate, and benzyldimethylcoconut oil alkylammonium pentafluoroethanesulfonate.
- the quaternary ammonium salt-based compound exhibits antibacterial properties and maintains a balance between discoloration and stretching properties, in the range of 0.1% by weight to 5% by weight with respect to the total weight of the polyurethane elastic yarn, and further 0 It is preferable to contain in the range of 2 wt% or more and 2 wt% or less.
- the polyurethane elastic yarn may contain various stabilizers and pigments.
- BHT and hindered phenolic agents such as “Sumilyzer” (registered trademark) GA-80 manufactured by Sumitomo Chemical Co., Ltd., various types of “Chinubin” (registered trademark) manufactured by Ciba Geigy, etc.
- Benzotriazoles benzophenone drugs, phosphorus-based drugs such as “Sumilyzer” (registered trademark) P-16 manufactured by Sumitomo Chemical Co., Ltd., various hindered amine drugs, various pigments such as iron oxide and titanium oxide, zinc oxide , Inorganic substances such as cerium oxide, magnesium oxide, calcium carbonate, carbon black, fluorine or silicone resin powders, metal soaps such as magnesium stearate, lubricants such as silicone and mineral oil, cerium oxide, betaine and phosphoric acid It is also preferable to include various antistatic agents such as It is also preferred but which is reacted with the polymer.
- nitric oxide supplement such as HN-150 manufactured by Nippon Hydrazine Co., Ltd., “Sumilyzer” manufactured by Sumitomo Chemical Co., Ltd. (registered) It is also preferred to use a thermal oxidation stabilizer such as trade mark GA-80 and a light stabilizer such as “SUMISOB” (registered trademark) 300 # 622 manufactured by Sumitomo Chemical Co., Ltd.
- polymer diol and diisocyanate are used as starting materials, and spinning is performed by containing a metal phosphate and a monoamine compound having a molecular weight of 120 or less (that is, present) in a polyurethane spinning solution obtained therefrom.
- a metal phosphate and a monoamine compound having a molecular weight of 120 or less that is, present
- the “spinning stock solution” refers to a solution that is finally spun, while the polyurethane solution means a solution containing polyurethane, and may be a solution in any state.
- the method for producing the polyurethane solution and the method for producing the polyurethane as the solute of the solution may be either a melt polymerization method or a solution polymerization method, or may be another method.
- the solution polymerization method is more preferable.
- the solution polymerization method there is little generation of foreign substances such as gel in the polyurethane, it is easy to spin, and it is easy to obtain a polyurethane elastic yarn having a low fineness.
- solution polymerization there is an advantage that the operation of making a solution can be omitted.
- Polyurethanes can use polymer diols, diisocyanates, and chain extenders as described above, and can be polymerized using end-capping agents as described above, if necessary.
- Particularly suitable polyurethanes include PTMG having a molecular weight of 1500 to 6000 as a polymer diol, MDI as a diisocyanate, ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, and hexamethylenediamine as a chain extender. What was synthesize
- Polyurethane is obtained, for example, by synthesis using DMAc, DMF, DMSO, NMP or the like or a solvent containing these as a main component using the above raw materials. For example, each raw material is charged in such a solvent, dissolved, heated to an appropriate temperature and reacted to form polyurethane, a so-called one-shot method, or polymer diol and diisocyanate are first melt-reacted and then reacted.
- a particularly preferable method is a method in which a product is dissolved in a solvent and reacted with the above-described chain extender to form polyurethane.
- the melting point on the high temperature side of the polyurethane is a range of 200 ° C. or higher and 260 ° C. or lower from the viewpoint of obtaining a product having excellent heat resistance.
- Exemplary methods can be achieved by controlling the type and ratio of polymer diol, MDI, diol.
- MDI polymer diol
- the molecular weight of the polymer diol is low, a polyurethane having a high melting point at a high temperature can be obtained by relatively increasing the proportion of MDI.
- the proportion of the polymer diol is relatively By reducing the amount of the polyurethane, a polyurethane having a high temperature melting point can be obtained.
- amine catalyst examples include N, N-dimethylcyclohexylamine, N, N-dimethylbenzylamine, triethylamine, N-methylmorpholine, N-ethylmorpholine, N, N, N ′, N′-tetramethylethylenediamine, N, N, N ′, N′-tetramethyl-1,3-propanediamine, N, N, N ′, N′-tetramethylhexanediamine, bis-2-dimethylaminoethyl ether, N, N, N ′ , N ′, N′-pentamethyldiethylenetriamine, tetramethylguanidine, triethylenediamine, N, N′-dimethylpiperazine, N-methyl-N′-dimethylaminoethyl-piperazine, N- (2-dimethylaminoethyl) morpholine, 1-methylimidazole, 1,2-dimethylimidazole, N, N-
- organometallic catalyst examples include tin octoate, dibutyltin dilaurate, and lead dibutyl octoate.
- a metal phosphate and a monoamine compound having a molecular weight of 120 or less it is preferable to add a metal phosphate and a monoamine compound having a molecular weight of 120 or less to such a polyurethane solution to obtain a spinning dope.
- Any method can be adopted as a method of adding the metal phosphate and the monoamine compound to the polyurethane solution.
- various means such as a method using a static mixer, a method using stirring, a method using a homomixer, a method using a biaxial extruder, and the like can be adopted.
- the metal phosphate and the monoamine compound may be added alone to the polyurethane solution, or may be mixed in advance and added to the polyurethane solution. From the viewpoint of developing deodorant properties against ammonia gas, it is preferable to add a dispersion liquid obtained by mixing them in advance to the polyurethane solution.
- the metal phosphate is preferably contained in the polyurethane elastic yarn in the range of 0.5 wt% to 10 wt%.
- a spinning dope by adding the above-mentioned metal phosphate to a polyurethane solution containing N, N-dimethylacetamide or the like as a solvent, and stirring and mixing so as to disperse it uniformly.
- the metal phosphate is dispersed in advance in a solvent such as N, N-dimethylformamide or N, N-dimethylacetamide to form a metal phosphate dispersion, and the dispersion is mixed with the polyurethane solution.
- a solvent such as N, N-dimethylformamide or N, N-dimethylacetamide
- the dispersion is mixed with the polyurethane solution.
- the solvent of the metal phosphate dispersion to be added is preferably the same solvent as the polyurethane solution from the viewpoint of uniform addition to the polyurethane solution.
- the above-mentioned chemicals such as a light-proofing agent and an antioxidant and a pigment may be added simultaneously.
- the monoamine compound may be present in the spinning dope used for spinning.
- a metal phosphate and a monoamine having a molecular weight of 120 or less are present together with polyurethane in the spinning stock solution as described above.
- the monoamine compound having a molecular weight of 120 or less is used as a spinning stock solution. It is preferable to make it contain in 0.01 to 0.5 weight%.
- the concentration of polyurethane in the polyurethane spinning dope is usually preferably in the range of 30% by weight to 80% by weight.
- a quaternary ammonium salt compound in order to enhance antibacterial properties against various bacteria.
- spinning is performed by adding the quaternary ammonium salt compound as described above to the polyurethane spinning dope before spinning.
- the quaternary ammonium salt compound may be mixed alone with the polyurethane solution, or may be mixed in advance with the metal phosphate dispersion.
- the polyurethane elastic yarn of the present invention can be obtained by, for example, dry-spinning, wet-spinning, or melt-spinning and winding up the spinning stock solution configured as described above. Of these, dry spinning is preferred from the viewpoint of stable spinning at all finenesses from fine to thick.
- the fineness and cross-sectional shape of the polyurethane elastic yarn of the present invention are not particularly limited.
- the cross-sectional shape of the yarn may be circular or flat.
- dry spinning method is not particularly limited, and spinning may be performed by appropriately selecting spinning conditions suitable for desired characteristics and spinning equipment.
- the permanent strain rate and the stress relaxation rate of the polyurethane elastic yarn of the present invention are particularly susceptible to the speed ratio of the godet roller and the winder, and therefore it is preferable to determine appropriately according to the intended use of the yarn. That is, from the viewpoint of obtaining a polyurethane elastic yarn having a desired permanent strain rate and stress relaxation rate, it is preferable that the speed ratio between the godet roller and the winder is 1.10 to 1.65.
- the spinning speed is preferably 250 m / min or more from the viewpoint of improving the strength of the obtained polyurethane elastic yarn.
- a polyurethane elastic yarn of 22 dtex was stretched 3 times, and a polyamide processed yarn (trademark Cupe, manufactured by Toray Industries, Inc., 33 dtex 26 filament) was covered as a sheath yarn with a twist number of 800 T / m, Z twisted single covering yarn (SCY) was produced.
- a polyamide processed yarn (trademark Cupe, manufactured by Toray Industries, Inc., 33 dtex 26 filament) was covered as a sheath yarn with a twist number of 800 T / m, Z twisted single covering yarn (SCY) was produced.
- the S twist SCY was fed into the yarn feeders 1 and 3 of a pantyhose knitting machine (manufactured by Lonati, 400 needles), and the Z twist SCY was fed into the yarn feeders 2 and 4 with a weaving tension of 1.0 g. Knitted fabric.
- the content of polyurethane elastic yarn in the knitted fabric was 16%.
- staining process of the knitted fabric was implemented as follows and the tights knitted fabric was obtained.
- Preset Use of vacuum dryer, 90 ° C. ⁇ 10 minutes
- Dyeing 90% using 2.0 ow% of dye “Lanaset” (registered trademark) Black B manufactured by Ciba Specialty Chemicals Co., Ltd. It was treated at 60 ° C. for 60 minutes and dyed black. The pH adjustment during dyeing was performed with acetic acid and ammonium sulfate.
- a softening treatment was performed and finished through a setting process (using a pantyhose setting machine, setting: 115 ° C. ⁇ 10 seconds, drying: 120 ° C. ⁇ 30 seconds).
- the deodorization test conforms to the deodorant processed fiber product certification standard (established by: Product Evaluation Department, Textile Evaluation Technology Council of Japan, establishment date: September 1, 2002). The deodorant evaluation of the component was performed.
- Table 1 shows the acceptance criteria for “deodorizing effect” for the rate of reduction of each odor component by the instrumental analysis test at the Japan Fiber Evaluation Technology Council. (Detection tube method) 1.
- a sample (10 cm ⁇ 10 cm) is placed in a tedlar bag. 2.
- a predetermined amount of test gas shown in Table 1 is injected, and the residual gas concentration (ppm) after 2 hours is measured with a component-compatible detector tube (manufactured by Gastec). The gas filling amount is 3 L, and the dilution gas is dry air or nitrogen gas.
- the reduction rate of the residual gas concentration is calculated according to the following formula and expressed as the deodorization rate.
- the antibacterial test was performed in accordance with the antibacterial test procedure (JIS L1902: 2008, bacterial solution absorption method) designated by the Japan Fiber Evaluation Technology Council.
- the antibacterial activity is calculated by calculating the bacteriostatic activity value from the following formula, where X is the number of viable bacteria after culturing the untreated sample (18) and Y is the number of viable bacteria after culturing the test dough for 18 hours. Evaluated. In addition, the measured value was calculated
- required by the average value of n 3.
- Japan Fiber Evaluation Technology Council recognizes that “effective” for antibacterial activity when the bacteriostatic activity value of Staphylococcus aureus is 2.2 or more.
- the quantification was performed by an absolute calibration method based on the absolute area of total ions using a calibration curve of toluene.
- FIG. 1A is a top view of the package
- FIG. 1B is a front view of the package.
- a sample card was prepared by winding 10 g of polyurethane elastic yarn around a stainless steel plate. This sample was exposed to a gas containing NO 2 gas in a specified concentration (7 ppm) in air for 50 hours using a Scott tester. Before and after the exposure treatment, “b” color was measured using a color master (D25 DP-9000 type signal processor), and the degree of yellowing was evaluated by the difference “ ⁇ b” before and after the treatment. In addition, the measured value was calculated
- required from the average value of n 3.
- ethylenediamine as a chain extender 1,2 propanediamine, and diethylamine as a chain terminator (end-capping agent) are mixed at a ratio of amino end group concentration of 10: 2: 1 to be 35% by weight.
- An amine solution was prepared by dissolving in DMAc. The prepolymer solution and the amine solution were mixed with stirring so that the molar ratio of the isocyanate end groups to the amine end groups was 1: 1.02 to prepare a polyurethane urea polymer DMAC solution (concentration 35% by weight). .
- a polyurethane solution (“METACROL” (registered trademark) 2462 manufactured by DuPont) produced by a reaction of t-butyldiethanolamine and methylene-bis- (4-cyclohexyl isocyanate), A condensation polymer of p-cresol and divinylbenzene (“METACROL” (registered trademark) 2390, manufactured by DuPont) was mixed in a ratio of 2 to 1 (weight ratio), and an antioxidant DMAc solution (concentration: 35% by weight). ) was adjusted. 96 parts by weight of the polyurethane urea polymer DMAc solution and 4 parts by weight of the antioxidant DMAc solution were mixed to obtain a polymer solution A1.
- zirconium phosphate deodorant “Kesmon” registered trademark
- NS-10 average primary particle size 0.9 ⁇ m
- diethylamine (molecular weight 73.14) was adjusted to 35% by weight in DMAc to obtain a monoamine solution C1.
- Polymer solutions A1, B1, and C1 were uniformly mixed at 96.9 wt%, 3 wt%, and 0.1 wt% to obtain a spinning dope D1. This was dry-spun at a speed ratio of 720 m / min with a speed ratio of 1.3 between the godet roller and the winder, and a 200 g wound body of polyurethane yarn having a content of 22 decitex, 2 filaments and zirconium phosphate of 3% by weight was obtained. Obtained.
- Example 2 Polymer solutions A1, B1, and C1 were uniformly mixed at 97.98% by weight, 2% by weight, and 0.02% by weight to obtain a spinning dope D2. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 decitex, 2 filaments, and zirconium phosphate of 2% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 3 Instead of zirconium phosphate dispersion B1, synthesized titanium phosphate (average primary particle size 1.1 ⁇ m) was dispersed in DMAc by a homomixer to obtain titanium phosphate dispersion B2 (35 wt%).
- Polymer solutions A1, B2, and C1 were uniformly mixed at 96.98 wt%, 3 wt%, and 0.02 wt% to obtain a spinning dope D3. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having a content of 22 decitex, 2 filaments, and titanium phosphate of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 4 In place of the monoamine solution C1, ethylmethylamine (molecular weight 89.14) was prepared in DMAc at 35% by weight to obtain a monoamine solution C2 (35% by weight).
- Polymer solutions A1, B1, and C2 were uniformly mixed at 94.88 wt%, 5 wt%, and 0.12 wt% to obtain a spinning dope D4. This was dry-spun in the same manner as in Example 1 to obtain a 200 g wound body of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 5 instead of the monoamine solution C1, diisopropylamine (molecular weight 101.19) was adjusted to 35% by weight in DMAc to obtain a monoamine solution C3 (35% by weight).
- Polymer solutions A1, B1, and C3 were uniformly mixed at 99.35 wt%, 0.5 wt%, and 0.15 wt% to obtain a spinning dope D5. This was dry-spun in the same manner as in Example 1 to obtain a 200 g wound body of polyurethane yarn having a content of 22 decitex, 2 filaments and zirconium phosphate of 0.5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 6 In place of the monoamine solution C1, isopropylmethylamine (molecular weight 73.14) was prepared in DMAc at 35% by weight to obtain a monoamine solution C4 (35% by weight).
- Polymer solutions A1, B1, and C4 were uniformly mixed at 89.5 wt%, 10.0 wt%, and 0.5 wt% to obtain a spinning dope D6. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having a content of 22 dtex, 2 filaments, and zirconium phosphate having a content of 10% by weight. However, the yarn breakage that seems to be clogged with the die occurred during spinning, and the spinnability was not good.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 7 instead of the monoamine solution C1, N-butylamine (molecular weight 73.14) was adjusted to 35% by weight in DMAc to obtain a monoamine solution C5 (35% by weight).
- Polymer solutions A1, B1, and C5 were uniformly mixed at 95.9 wt%, 4.0 wt%, and 0.1 wt% to obtain a spinning dope D7. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 dtex, 2 filaments, and zirconium phosphate of 4% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 8 Polymer solutions A1, B2, and C1 were uniformly mixed at 92.9 wt%, 7.0 wt%, and 0.1 wt% to obtain a spinning dope D8. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having a content of 22 dtex, 2 filaments, and titanium phosphate of 7% by weight.
- Tables 3 and 4 show the results of various evaluation results.
- Example 9 Instead of zirconium phosphate dispersion B1, separately synthesized zirconium phosphate (average primary particle size 3.5 ⁇ m) was dispersed in DMAc by a homomixer to obtain zirconium phosphate dispersion B3 (35 wt%).
- Polymer solutions A1, B3 and C1 were uniformly mixed at 97.4% by weight, 2.5% by weight and 0.1% by weight to obtain a spinning dope D9. This was dry-spun in the same manner as in Example 1 to obtain a 50 g wound body of polyurethane yarn having a content of 22 dtex, 2 filaments, and titanium phosphate of 2.5% by weight. However, many yarn breaks that seem to be clogged with the die occurred during spinning, and the spinnability was poor.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 10 Polymer solutions A1, B1, and C1 were uniformly mixed at 93.99 wt%, 6 wt%, and 0.01 wt% to obtain a spinning dope D10. This was dry-spun in the same manner as in Example 1 to obtain a 200 g wound body of polyurethane yarn having a content of 22 decitex, 2 filaments and zirconium phosphate of 6% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 11 A DMAC solution (35% by weight) of a polyurethane urethane polymer having a molecular weight of 2100, PTMG, MDI, ethylene glycol and 1-butanol as a terminal blocking agent was prepared.
- a polyurethane solution (“METACROL” (registered trademark) 2462 manufactured by DuPont) produced by a reaction of t-butyldiethanolamine and methylene-bis- (4-cyclohexyl isocyanate), Mixing with a condensation polymer of p-cresol and divinylbenzene (“METACROL” (registered trademark) 2390 manufactured by DuPont) in a ratio of 2 to 1 (weight ratio), an antioxidant DMAc solution (concentration 35% by weight) Adjusted.
- a polymer solution A2 was prepared by mixing 96 parts by weight of the polyurethane polymer DMAc solution and 4 parts by weight of the antioxidant DMAc solution.
- a quaternary ammonium salt compound “BARQUAT” (registered trademark) MS-100 (benzyldimethyltetradecylammonium chloride) manufactured by Lonza Japan Co., Ltd. was prepared at 35% by weight in DMAc to obtain an antibacterial agent solution C6.
- Polymer solutions A2, B1, C1, and C6 were uniformly mixed at 96.8%, 2.5%, 0.2%, and 0.5% by weight to obtain a spinning dope D11. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 2.5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 12 instead of the zirconium phosphate dispersion B1, an aluminum trihydrogen phosphate deodorant “K-FRESH” (registered trademark) # 100P (average primary particle size 1.0 ⁇ m) manufactured by Teika Co., Ltd. was used with a homomixer. Dispersed in DMAc to obtain aluminum dihydrogen phosphate dispersion B4 (35% by weight).
- K-FRESH registered trademark
- # 100P average primary particle size 1.0 ⁇ m
- Polymer solutions A1, B4, and C1 were uniformly mixed at 94.8 wt%, 5 wt%, and 0.2 wt% to obtain a spinning dope D12. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having a content of 22 dtex, 2 filaments, and aluminum dihydrogen tripolyphosphate having a content of 5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 13 Polymer solutions A2, B1, and C1 were uniformly mixed at 96.9 wt%, 3 wt%, and 0.1 wt% to obtain a spinning dope D13. This was dry-spun in the same manner as in Example 1 to obtain a 200-g wound body of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 14 PTMG having a molecular weight of 1800 and MDI are mixed at a molar ratio of 1: 1.58 and reacted at 90 ° C. for 2 hours to give an isocyanate-terminated prepolymer, which is then dissolved in DMAc so as to be 35% by weight. Adjusted. Further, ethylenediamine as a chain extender and diethylamine as a chain terminator were mixed at a ratio of amino end group concentration of 14: 1 and dissolved in DMAc so as to be 35% by weight to prepare an amine solution.
- a polyurethane solution (“METACROL” (registered trademark) 2462 manufactured by DuPont) produced by a reaction of t-butyldiethanolamine and methylene-bis- (4-cyclohexyl isocyanate), 2: 1 (weight ratio) was mixed with a condensation polymer of p-cresol and divinylbenzene (“METACROL” (registered trademark) 2390, manufactured by DuPont), and an antioxidant DMAc solution (concentration 35% by weight) Then, 96 parts by weight of the polyurethane polymer DMAc solution and 4 parts by weight of the antioxidant DMAc solution were mixed to obtain a polymer solution A3.
- a polyurethane solution (“METACROL” (registered trademark) 2462 manufactured by DuPont) produced by a reaction of t-butyldiethanolamine and methylene-bis- (4-cyclohexyl isocyanate), 2: 1 (weight ratio) was mixed with a condensation polymer of p-
- Polymer solutions A3 and B1 were uniformly mixed at 97% by weight and 3% by weight to obtain a spinning dope D14. This was dry-spun in the same manner as in Example 1 to obtain a 200-g wound body of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1, B1, C1, and C7 were uniformly mixed at 96.8%, 2.5%, 0.2%, and 0.5% by weight to obtain a spinning dope D15. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 2.5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 16 A quaternary ammonium salt compound “Neogermi DFS” manufactured by Sanyo Chemical Co., Ltd. was prepared in DMAc at 35% by weight to obtain Solution C8 (35% by weight).
- Polymer solutions A3, B1, and C8 were uniformly mixed at 96.5 wt%, 2.5 wt%, and 1 wt% to obtain a spinning dope D16. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 2.5% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Example 17 Polymer solutions A3, B1, and C8 were uniformly mixed at 97.4 wt%, 2.5 wt%, and 0.1 wt% to obtain a spinning dope D17. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 dtex, 2 filaments and zirconium phosphate of 2.5% by weight.
- Example 1 The polymer solution A1 was dry-spun in the same manner as in Example 1 to obtain a 200 g wound body of 22 decitex, 2-filament polyurethane yarn.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1 and B3 were uniformly mixed at 96 wt% and 4 wt% to obtain a spinning dope D20. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having 22 decitex, 2 filaments, and a silver-containing zeolite content of 4% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1, B1, and C9 were uniformly mixed at 97.9 wt%, 2.0 wt%, and 0.1 wt% to obtain a spinning dope D21. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 decitex, 2 filaments, and zirconium phosphate of 2% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1, B5, and C1 were uniformly mixed at 96.8 wt%, 3 wt%, and 0.2 wt% to obtain a spinning dope D22. This was dry-spun in the same manner as in Example 1 to obtain 200 g of a polyurethane yarn having a content of 22 decitex, 2 filaments, and zeolite of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1, B6, and C1 were uniformly mixed at 96.9 wt%, 3 wt%, and 0.1 wt% to obtain a spinning dope D23. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 decitex, 2 filaments and zinc oxide of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Polymer solutions A1, B6, and C10 were uniformly mixed at 96.9 wt%, 3 wt%, and 0.1 wt% to obtain a spinning dope D24. This was dry-spun in the same manner as in Example 1 to obtain a 200 g roll of polyurethane yarn having a content of 22 decitex, 2 filaments and zinc oxide of 3% by weight.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Tables 3, 4 and 5 show the results of various evaluation results.
- Tables 3, 4 and 5 show the results of various evaluation results.
- a polyurethane elastic yarn excellent in stretchability, deodorization property, antibacterial property, and discoloration resistance can be obtained.
- stretchability, deodorization property, antibacterial property are obtained.
- Fabric having excellent properties and discoloration resistance can be obtained.
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Abstract
Description
(1) ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンからなる弾性糸であって、金属リン酸塩を含有し、分子量120以下のモノアミン化合物の放散量が100μg/m2以上であるポリウレタン弾性糸。
(2) 前記金属リン酸塩の含有量が0.5wt%以上10wt%である、前記(1)に記載のポリウレタン弾性糸。
(3) 前記金属リン酸塩の平均一次粒子径が3.0μm以下である、前記(1)または(2)に記載のポリウレタン弾性糸。
(4) 前記金属リン酸塩が、リン酸チタン、リン酸ジルコニウム、およびトリポリリン酸二水素アルミニウムからなる群から選ばれる少なくとも1種である、前記(1)~(3)のいずれかに記載のポリウレタン弾性糸。
(5) 放散する前記モノアミン化合物が第2級モノアミン化合物である、前記(1)~(4)のいずれかに記載のポリウレタン弾性糸。
(6) さらに、4級アンモニウム塩系化合物を含有する、前記(1)~(5)のいずれかに記載のポリウレタン弾性糸。
(7) 前記4級アンモニウム塩系化合物が下記構造を有する、前記(6)に記載のポリウレタン弾性糸。
(9) ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンを含む紡糸原液に、金属リン酸塩を混合するとともに、分子量120以下のモノアミン化合物を含有量が紡糸原液に対して0.01重量%以上0.5重量%以下の範囲となるように混合して、該紡糸原液を乾式紡糸するポリウレタン弾性糸の製造方法。
(10) 前記ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンを含む紡糸原液に、前記金属リン酸塩を分散液として混合する、前記(9)に記載のポリウレタン弾性糸の製造方法。
(11) 前記金属リン酸塩が、リン酸チタン、リン酸ジルコニウム、およびトリポリリン酸二水素アルミニウムからなる群から選ばれる少なくとも1種である、前記(9)または(10)に記載のポリウレタン弾性糸の製造方法。
(12) 分子量120以下の前記モノアミン化合物が第2級アミン化合物である、前記(9)~(11)のいずれかに記載のポリウレタン弾性糸の製造方法。
ポリウレタン弾性糸の強度、応力緩和率、永久歪率、伸度は、試料糸をインストロン4502型引張試験機にて、引張テストをすることにより測定した。
応力緩和率[%]=100×((G1)-(G2))/(G1)
永久歪率[%]=100×((L2)-(L1))/(L1)
伸度[%] =100×((L3)-(L1))/(L1)
なお、引張テストは3回行い、平均値より求めた。
22dtexのポリウレタン弾性糸を3倍に延伸し、これに鞘糸としてポリアミド加工糸(商標キュープ、東レ(株)製、33デシテックス26フィラメント)を撚り数800T/mでカバーリングして、S撚りとZ撚りのシングルカバリング糸(SCY)を作製した。
(1)プレセット:真空乾燥機使用、90℃×10分
(2)染色:チバ・スペシャルティ・ケミカルズ(株)製の染料“Lanaset”(登録商標) Black Bを2.0owf%使用して90℃で60分間処理し黒色に染めた。染色時のpH調整は酢酸と硫安で実施した。
(3)最後に柔軟処理を行い、セット工程(パンストセット機使用、セット:115℃×10秒、乾燥:120℃×30秒)を通して仕上げた。
繊維製品新機能評価評議会が制定している、洗濯方法マニュアルに準拠した(JIS L0217:1995の付表1、洗い方103)。すなわち、JIS L0217:1995の付表1、洗い方103に規定される家庭電気洗濯機を使用し、40℃の水30リットルに対しJAFET標準洗剤(繊維製品新機能評価評議会製)40ミリリットルを溶解して洗濯液とし、この洗濯液に1kgの試料である被洗濯物を入れた。5分間洗濯、脱水、2分間濯ぎ洗い、脱水、2分間濯ぎ洗い、脱水の工程を1回とし、洗濯を行った。
消臭試験は、消臭加工繊維製品認証基準(制定者:社団法人繊維評価技術協議会 製品認証部、制定日:平成14年9月1日)に準拠し、以下のように機器試験により臭気成分の消臭性評価を行なった。なお、社団法人繊維評価技術協議会で、該機器分析試験による各臭気成分の減少率について「消臭効果有り」とする合格基準を、表1に示す。
(検知管法)
1.サンプル(10cm×10cm)をテドラーバッグに入れる。
2.表1に示す所定量の試験ガスを注入し、2時間後の残存ガス濃度(ppm)を成分対応検知管(ガステック社製)で測定する。尚ガス充填量は3L、希釈ガスは乾燥空気または窒素ガスとする。
4.評価は下記の式に従って、残存ガス濃度の減少率を算出し、消臭率として表記する。
抗菌試験は、社団法人繊維評価技術協議会が指定した抗菌性試験手順(JIS L1902:2008、菌液吸収法)に準拠して実施した。Xを無加工試料の18時間培養後の生菌数(個)、Yを試験生地の18時間培養後の生菌数(個)として、静菌活性値を下記の式から算出して抗菌力を評価した。なお、測定値はn=3の平均値で求めた。
前処理:
ポリウレタン弾性糸を巻き取った後、35℃×65%RHの条件下で14日間保管した。その後、チャック付袋(生産日本社製J-4、340mm×240mm×0.04mm)にポリウレタン弾性糸を入れ、清浄空気を注入して速やかに密閉し、23℃の室温下で100時間保管した。
分析:
処理したポリウレタン弾性糸入りのチャック付袋より、ガスを全量捕集管に捕集した。捕集した有機成分を捕集管より加熱脱離し、GC/MSに導入、分析した。測定条件を表2に示す。
ポリウレタン弾性糸をステンレス板に10g巻き取り試料カードを作製した。この試料を、スコットテスターを使用して、空気中にNO2ガスを規定の濃度(7ppm)含有させたガス中に50時間暴露した。この暴露処理の前後で、カラーマスター(D25 DP-9000型 シグナルプロセッサー)を使用して“b”カラーを測定し、処理前後の差“△b”によって黄変程度を評価した。なお、測定値はn=3の平均値より求めた。
無機粒子を日立製作所(株)製 電解放射型走査電子顕微鏡(FE-SEM)S-800にて撮影を行い、画像処理ソフトImage-Pro Version4.0にて解析して求めた。なお、投影面積円相当径を測定し、1サンプル当たりn=20の個数平均により求めた。
[金属リン酸塩の含有量]
ポリウレタン弾性糸を原糸吸光光度法によって分析し、金属リン酸塩の濃度を測定した。測定は、金属リン酸塩中の金属(Al、Zr、Ti)について行った。なお、測定値はn=3の平均より求め、金属リン酸塩の含有量を以下の式より求めた。
試料(ポリウレタン糸)1gを秤量し、メタノール100mlに入れ、4級アンモニウム塩を抽出した。抽出液について、液体クロマトグラフィーにて予め作成しておいた標準液から定量を行った。以下に分析条件を示す。なお、測定はn=2の平均より求めた。
カラム:LiChrospher 100 RP-18(5μm)、内径4.6mm、長さ150mm、カラム温度:35℃
検出:UV210nm
移動相:メタノール/水混合溶液(60/40容量%)、流速:1ml/分、注入量:2μl
[実施例1]
分子量1800のPTMGとMDIとを1:1.58のモル比で90℃で2時間反応させ、イソシアネート末端のプレポリマとした後、35重量%となるようにDMAcに溶解してプレポリマ溶液を調整した。また、鎖伸長剤としてのエチレンジアミン、1,2プロパンジアミン、鎖停止剤(末端封鎖剤)としてのジエチルアミンを10:2:1のアミノ末端基濃度の比率で混合し、35重量%となるようにDMAcに溶解してアミン溶液を調整した。プレポリマ溶液とアミン溶液とをイソシアネート末端基とアミン末端基とのモル比が1:1.02となるように攪拌しながら混合し、ポリウレタンウレア重合体のDMAC溶液(濃度35重量%)を調整した。次に、酸化防止剤として、t-ブチルジエタノールアミンとメチレン-ビス-(4-シクロヘキシルイソシアネ-ト)の反応によって生成せしめたポリウレタン溶液(デュポン社製“メタクロール”(登録商標)2462)と、p-クレゾ-ルおよびジビニルベンゼンの縮合重合体(デュポン社製“メタクロール”(登録商標)2390)とを、2対1(重量比)で混合し、酸化防止剤DMAc溶液(濃度35重量%)を調整した。前記ポリウレタンウレア重合体のDMAc溶液96重量部と酸化防止剤DMAc溶液4重量部を混合し、ポリマ溶液A1とした。
ポリマ溶液A1、B1、C1を97.98重量%、2重量%、0.02重量%で均一に混合し、紡糸原液D2とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が2重量%であるポリウレタン糸の200g巻糸体を得た。
リン酸ジルコニウム分散液B1に代えて、合成したリン酸チタン(平均一次粒子径1.1μm)をホモミキサーによりDMAcに分散し、リン酸チタン分散液B2(35重量%)とした。
モノアミン溶液C1に代えて、エチルメチルアミン(分子量89.14)をDMAcに35重量%に調製し、モノアミン溶液C2(35重量%)とした。
モノアミン溶液C1に代えて、ジイソプロピルアミン(分子量101.19)をDMAcに35重量%に調製し、モノアミン溶液C3(35重量%)とした。
モノアミン溶液C1に代えて、イソプロピルメチルアミン(分子量73.14)をDMAcに35重量%に調製し、モノアミン溶液C4(35重量%)とした。
モノアミン溶液C1に代えて、N-ブチルアミン(分子量73.14)をDMAcに35重量%に調製し、モノアミン溶液C5(35重量%)とした。
ポリマ溶液A1、B2、C1を92.9重量%、7.0重量%、0.1重量%で均一に混合し、紡糸原液D8とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸チタンの含有量が7重量%であるポリウレタン糸の200g巻糸体を得た。
リン酸ジルコニウム分散液B1に代えて、別途合成したリン酸ジルコニウム(平均一次粒子径3.5μm)をホモミキサーによりDMAcに分散し、リン酸ジルコニウム分散液B3(35重量%)とした。
ポリマ溶液A1、B1、C1を93.99重量%、6重量%、0.01重量%で均一に混合し、紡糸原液D10とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が6重量%であるポリウレタン糸の200g巻糸体を得た。
分子量2100のPTMG、MDI、エチレングリコールおよび末端封鎖剤として1-ブタノールからなるポリウレタンウレタン重合体のDMAC溶液(35重量%)を調整した。次に、酸化防止剤として、t-ブチルジエタノールアミンとメチレン-ビス-(4-シクロヘキシルイソシアネ-ト)の反応によって生成せしめたポリウレタン溶液(デュポン社製“メタクロール”(登録商標)2462)と、p-クレゾ-ルおよびジビニルベンゼンの縮合重合体(デュポン社製“メタクロール”(登録商標)2390)とを2対1(重量比)で混合し、酸化防止剤DMAc溶液(濃度35重量%)を調整した。前記ポリウレタン重合体のDMAc溶液96重量部と酸化防止剤DMAc溶液4重量部を混合し、ポリマ溶液A2とした。
リン酸ジルコニウム分散液B1に代えて、テイカ(株)社製のトリポリリン酸二水素アルミニウム系消臭剤“K-FRESH”(登録商標)#100P(平均一次粒子径1.0μm)をホモミキサーによりDMAcに分散し、トリポリリン酸二水素アルミニウム分散液B4(35重量%)とした。
ポリマ溶液A2、B1、C1を96.9重量%、3重量%、0.1重量%で均一に混合し、紡糸原液D13とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が3重量%であるポリウレタン糸の200g巻糸体を得た。
分子量1800のPTMGとMDIとを1:1.58のモル比で混合し、90℃で2時間反応させ、イソシアネート末端のプレポリマとした後、35重量%となるようにDMAcに溶解してプレポリマ溶液を調整した。また、鎖伸長剤としてエチレンジアミン、鎖停止剤としてジエチルアミンを14:1のアミノ末端基濃度の比率で混合し、35重量%となるようにDMAcに溶解してアミン溶液を調整した。
日油化学(株)社製4級アンモニウム塩系化合物“ニッサンカチオン”(登録商標)EQ-01DをDMAcに35重量%に調製し、抗菌剤溶液C7とした。
三洋化成(株)社製4級アンモニウム塩系化合物“ネオジャーミDFS”をDMAcに35重量%に調製し、溶液C8(35重量%)とした。
ポリマ溶液A3、B1、C8を97.4重量%、2.5重量%、0.1重量%で均一に混合し、紡糸原液D17とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が2.5重量%であるポリウレタン糸の200g巻糸体を得た。
ポリマ溶液A1を実施例1と同様に乾式紡糸し、22デシテックス、2フィラメントのポリウレタン糸の200g巻糸体を得た。
ポリマ溶液A1、B1を97.5重量%、2.5重量%で均一に混合し、紡糸原液D18とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が2.5重量%であるポリウレタン糸の200g巻糸体を得た。
ポリマ溶液A1、C2を99.8重量%、0.2重量%で均一に混合し、紡糸原液D19とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメントのポリウレタン糸の200g巻糸体を得た。
リン酸ジルコニウム分散液B1に代えて、シナネンゼオミック(株)社製銀含有ゼオライト“ゼオミック”(登録商標)SW-10N(平均一次粒子径1.0μm)をホモミキサーによりDMAcに分散し、ゼオライト分散液B3(35重量%)とした。
モノアミン溶液C1に代えて、ジアミルアミン(分子量157.3)をDMAcに35重量%に調製し、モノアミン溶液C9(35重量%)とした。
リン酸ジルコニウム分散液B1に代えて、東ソー(株)社製ハイシリカゼオライトHSZ-980HOA(平均一次粒子径2.0μm)をホモミキサーによりDMAcに分散し、ゼオライト分散液B5(35重量%)とした。
リン酸ジルコニウム分散液B1に代えて、堺化学(株)社製超微粒子酸化亜鉛“FINEX”-25(平均一次粒子径0.04μm)をホモミキサーによりDMAcに分散し、酸化亜鉛分散液B6(35重量%)とした。
モノアミン溶液C1に代えて、天然抗菌剤のヒノキチオールをDMAcに35重量%に調製し、溶液C10(35重量%)とした。
ポリマ溶液A1、C8を99重量%、1重量%で均一に混合し、紡糸原液D25とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、酸化亜鉛の含有量が3重量%であるポリウレタン糸の200g巻糸体を得た。
モノアミン溶液C1に代えて、東亞合成(株)社製銀含有抗菌剤“ノバロン”(登録商標)AGT330(平均一次粒子径0.5μm)をホモミキサーによりDMAcに分散し、無機系抗菌剤分散液C11(35重量%)とした。ポリマ溶液A1、B1、B6、C11を96.5重量%、1.5重量%、1.0重量%、1.0重量%で均一に混合し、紡糸原液D26とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が1.5重量%であるポリウレタン糸の200g巻糸体を得た。
ポリマ溶液A2、B1を97.5重量%、2.5重量%で均一に混合し、紡糸原液D27とした。これを実施例1と同様に乾式紡糸し、22デシテックス、2フィラメント、リン酸ジルコニウムの含有量が2.5重量%であるポリウレタン糸の200g巻糸体を得た。
B 紙管の外径
C 最外層の糸巻き幅
D 最内層の糸巻き幅
Claims (12)
- ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンからなる弾性糸であって、金属リン酸塩を含有し、分子量120以下のモノアミン化合物の放散量が100μg/m2以上であるポリウレタン弾性糸。
- 前記金属リン酸塩の含有量が0.5wt%以上10wt%である、請求項1に記載のポリウレタン弾性糸。
- 前記金属リン酸塩の平均一次粒子径が3.0μm以下である、請求項1または2に記載のポリウレタン弾性糸。
- 前記金属リン酸塩が、リン酸チタン、リン酸ジルコニウム、およびトリポリリン酸二水素アルミニウムからなる群から選ばれる少なくとも1種である、請求項1~3のいずれかに記載のポリウレタン弾性糸。
- 放散する前記モノアミン化合物が第2級モノアミン化合物である、請求項1~4のいずれかに記載のポリウレタン弾性糸。
- さらに、4級アンモニウム塩系化合物を含有する、請求項1~5のいずれかに記載のポリウレタン弾性糸。
- 前記4級アンモニウム塩系化合物の含有量が0.1重量%以上5重量%以下の範囲である、請求項6または7に記載のポリウレタン弾性糸。
- ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンを含む紡糸原液に、金属リン酸塩を混合するとともに、分子量120以下のモノアミン化合物を含有量が紡糸原液に対して0.01重量%以上0.5重量%以下の範囲となるように混合して、該紡糸原液を乾式紡糸するポリウレタン弾性糸の製造方法。
- 前記ポリマージオールおよびジイソシアネートを出発物質とするポリウレタンを含む紡糸原液に、前記金属リン酸塩を分散液として混合する、請求項9に記載のポリウレタン弾性糸の製造方法。
- 前記金属リン酸塩が、リン酸チタン、リン酸ジルコニウム、およびトリポリリン酸二水素アルミニウムからなる群から選ばれる少なくとも1種である、請求項9または10に記載のポリウレタン弾性糸の製造方法。
- 分子量120以下の前記モノアミン化合物が第2級アミン化合物である、請求項9~11のいずれかに記載のポリウレタン弾性糸の製造方法。
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2011
- 2011-10-12 EP EP11834241.9A patent/EP2631338A4/en not_active Withdrawn
- 2011-10-12 US US13/879,697 patent/US20140148537A1/en not_active Abandoned
- 2011-10-12 JP JP2012539684A patent/JP5870928B2/ja active Active
- 2011-10-12 MX MX2013004238A patent/MX2013004238A/es active IP Right Grant
- 2011-10-12 BR BR112013009233A patent/BR112013009233A2/pt active Search and Examination
- 2011-10-12 CN CN201180061006.4A patent/CN103298985B/zh not_active Expired - Fee Related
- 2011-10-12 KR KR1020137009839A patent/KR101851419B1/ko active IP Right Grant
- 2011-10-12 WO PCT/JP2011/073398 patent/WO2012053401A1/ja active Application Filing
- 2011-10-18 TW TW100137626A patent/TWI553176B/zh not_active IP Right Cessation
- 2011-11-09 US US13/884,701 patent/US20140033451A1/en not_active Abandoned
-
2014
- 2014-03-05 HK HK14102191.7A patent/HK1189248A1/xx not_active IP Right Cessation
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JP2015038261A (ja) * | 2013-07-19 | 2015-02-26 | 東レ・オペロンテックス株式会社 | ポリウレタン弾性糸及びその製造方法 |
JP2018059213A (ja) * | 2016-09-30 | 2018-04-12 | Kbセーレン株式会社 | ポリウレタン弾性機能性不織布 |
Also Published As
Publication number | Publication date |
---|---|
CN103298985B (zh) | 2015-05-06 |
MX2013004238A (es) | 2013-08-01 |
KR20130122622A (ko) | 2013-11-07 |
EP2631338A1 (en) | 2013-08-28 |
BR112013009233A2 (pt) | 2016-07-26 |
JPWO2012053401A1 (ja) | 2014-02-24 |
CN103298985A (zh) | 2013-09-11 |
US20140033451A1 (en) | 2014-02-06 |
TW201221713A (en) | 2012-06-01 |
HK1189248A1 (en) | 2014-05-30 |
TWI553176B (zh) | 2016-10-11 |
EP2631338A4 (en) | 2014-06-11 |
KR101851419B1 (ko) | 2018-05-31 |
US20140148537A1 (en) | 2014-05-29 |
JP5870928B2 (ja) | 2016-03-01 |
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