JP6687923B2 - Fiber structure and manufacturing method thereof - Google Patents

Description

  The present invention relates to a fiber structure having an excellent deodorizing property, and a manufacturing method for obtaining a fiber structure having an excellent deodorizing property.

  Polyurethane-based elastic fibers are widely used for elastic clothing applications such as legwear, innerwear, sportswear, swimwear, and industrial materials due to their excellent elastic properties. In recent years, with the demand for a more comfortable living environment, textile products for eliminating unpleasant odors such as sweat odors and aging odors have been desired, and various technical improvements have been proposed. .

  For example, as a means for imparting deodorant fine particles to the fiber surface, a method has been proposed in which porous fine particles such as titanium oxide or zeolite having a photocatalytic function are fixed to the fiber surface with a binder such as silicone (Patent Document 1). 1). However, in order to obtain high deodorant performance and washing durability, it is necessary to use a large amount of deodorant fine particles, and a large amount of binder is required to fix them to the fiber, which impairs the texture of the textile product. There was a problem.

  Further, as a method for improving the polymer constituting the fiber, there has been proposed a method in which a polyester fiber is graft-polymerized with an ethylenically unsaturated organic acid (Patent Document 2). However, there is a problem that the strength of the obtained fiber gradually decreases due to hydrolysis, and it cannot be put into practical use as a fiber product.

  In addition, a metal oxide and / or a composite metal oxide containing hinokitiol and at least one element selected from Zn, Si, Cu, Ni, Fe, Al and Mg as a deodorant component contained in the fiber. There has been proposed a method of kneading and into a polyurethane elastic yarn when dry-spun (Patent Document 3). However, in the dyeing process, the deodorant component was removed, and it was not possible to maintain sufficient deodorant performance.

JP-A-2000-54270 JP 2000-226767 A JP-A-2002-105757

  The present invention solves the above-mentioned problems of the prior art, and provides a fiber structure having an excellent deodorizing effect on ammonia, acetic acid, etc., which are the main components of sweat odor and age-related odor, and a method for producing the same. Is.

The present invention employs any one of the following means in order to solve the above problems.
(1) comprise an elastic yarn comprising a polymer diol and diisocyanate from polyurethane starting material, and, viewed at least one contains an alkyl ether-based compound, the mass of the elastic yarn ratio of the mass of the alkyl diphenyl ether compound consists of polyurethane To 10 to 50 mass, and the alkyldiphenylether compound is an alkyldiphenylethersulfonic acid or an alkyldiphenylethersulfonate .
( 2 ) The fibrous structure according to (1), wherein the elastic yarn made of polyurethane contains a metal phosphate.
( 3 ) The fiber structure according to ( 2 ) above, wherein the metal phosphate is titanium phosphate and / or zirconium phosphate.
( 4 ) The alkyldiphenylether-based compound is an alkyldiphenylethersulfonic acid or an alkyldiphenylethersulfonic acid salt at the same time as or after dyeing a fiber structure including an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material. The method for producing the fiber structure according to (1), wherein the fiber structure is treated in a bath with at least one alkyldiphenyl ether compound.
( 5 ) A fiber structure including an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material is prepared by using at least one of the alkyldiphenylether compounds in which the alkyldiphenylether compound is alkyldiphenylethersulfonic acid or alkyldiphenylethersulfonate. A method for producing the fiber structure according to the above (1), which is subjected to padding treatment.

  ADVANTAGE OF THE INVENTION According to this invention, the fiber structure which has the outstanding deodorizing performance with respect to ammonia, acetic acid, etc. which are the main components of a sweat odor and an aging smell can be provided.

  Hereinafter, the present invention will be described in detail.

  The fiber structure of the present invention includes an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material, and also includes at least one alkyldiphenyl ether compound.

  In the present invention, the fiber structure may have any structure and shape, and examples thereof include a cloth-like material, a belt-like material, a string-like material, and a thread-like material. Preferably, a woven or knitted fabric or a non-woven fabric is used, and a composite material containing such a fiber structure may be used.

  The fiber structure of the present invention includes an elastic yarn made of polyurethane described below, and may include synthetic fibers, regenerated fibers, semi-synthetic fibers, natural fibers and the like as fibers other than the elastic yarn made of polyurethane. The elastic yarn made of polyurethane contained in the fibrous structure is preferably contained in an amount of 1% or more, more preferably 10% or more. The content is preferably 90% or less, but may be a fibrous structure containing only elastic yarn made of polyurethane and not containing other fibers.

  Examples of synthetic fibers include polyester fibers, polyamide fibers, polyethylene fibers, polypropylene fibers, polyvinyl alcohol fibers, polyvinyl chloride fibers, polyacrylonitrile fibers, and the like. Examples of the polyester fiber include polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, and the like, and those obtained by copolymerizing a third component such as isophthalic acid with these. Regenerated fibers and semi-synthetic fibers include rayon and acetate, and natural fibers include cotton, hemp, wool and silk. These fibers may be either short fibers or long fibers, and can be used alone or as a mixture of two or more kinds, as a mixed yarn or a composite processed yarn. Further, it can be used as a composite processed yarn such as covering of synthetic fiber or natural fiber and elastic yarn made of polyurethane, air entanglement, ply twist, composite false twist or core spun yarn.

  The fiber structure of the present invention contains at least one alkyldiphenyl ether compound. As the alkyl diphenyl ether compound, those represented by the general formula (1) are preferably used.

(In the formula, R ₁ and R ₂ are each independently an alkyl group having 1 to 20 carbon atoms. R ₃ and R ₄ are each independently M selected from H, Na, K, Mg and Ca. a -SO ₃ M with .m, n is an integer from 0 to 5, either the n or m is 1 or more .p is an integer from 0 to (5-m), q is 0 (It is an integer of (5-n).)
In the general formula (1), R ₁ and R ₂ are each independently an alkyl group having 1 to 20 carbon atoms. Here, "independently" means that when m + n is 2 or more, all the carbon numbers of the respective alkyl groups may be different. It is preferable that the alkyl group has 20 or less carbon atoms because the solubility in water is good.

Further, in the general formula (1), R ₃ and R ₄ are each independently —SO ₃ M having M selected from H, Na, K, Mg, and Ca. Here, the -SO ₃ M, SO ₃ ^- and pairs shows a combination of ion M, the case where sulfonic acid M is H, when sulfonates M is any one of Na, K, Mg and Ca Is shown. In addition, "independently" indicates when p + q is 2 or more, H for each of -SO ₃ M, Na, K, that M is selected from Mg and Ca may be different from each other.

In the general formula (1), the alkyl group R ₁ and the alkyl group R ₂ may be linear or branched, and the alkyl group R ₁ and the alkyl group R ₂ can be replaced by hydrogen on the benzene ring. It can be located anywhere as long as it meets

As the alkyldiphenyl ether compound, it is preferable that sulfonic acid or sulfonate is substituted at any position of the benzene ring (that is, p + q is 1 or more in the general formula (1)). The presence of the sulfonic acid group can be expected to obtain a higher deodorizing effect. R ₃ and R ₄ can be located at any positions as long as the conditions for substituting hydrogen on the benzene ring are satisfied, as described above for R ₁ and R ₂ . Further, the total of p and q is more preferably 3 or less from the viewpoint of production efficiency.

  The alkyldiphenyl ether compound of the present invention can be used in combination of at least one kind or two or more kinds.

From the viewpoint of satisfying both the deodorizing effect and the texture , the mass ratio of the alkyldiphenyl ether compound contained in the fiber structure of the present invention is in the range of 10 to 50 mass% with respect to the mass of the elastic yarn made of polyurethane. Preferably there is. Here, where the alkyldiphenyl ether compound is contained, it may be attached to the entire fibrous structure or may be locally attached to the elastic yarn made of polyurethane. In less than 10 mass% hardly be able to exert sufficient deodorizing effect, unfavorably to inhibit the texture of the fiber structure exceeds 50 mass%.

  In the present invention, the polyurethane used for the polyurethane forming the elastic yarn may be any polyurethane as long as it has a structure in which the starting materials are a polymer diol and a diisocyanate, and is not particularly limited. Further, its synthesis method is not particularly limited. That is, for example, it may be a polyurethane urea made from polymer diol, diisocyanate and low molecular weight diamine as a raw material, or may be polyurethane urethane made from polymer diol, diisocyanate and low molecular weight diol as a raw material.

In the present invention, the polymer diol compound means a diol compound having a number average molecular weight (hereinafter sometimes abbreviated as a molecular weight) of 200 or more, and a diol compound having a molecular weight of less than 200 is called a low molecular diol compound. The molecular weight of the polymer diol is preferably 1,000 or more and 8,000 or less, more preferably 1,500 or more and 6,000 or less.
Further, it may be a polyurethane urea using a compound having a hydroxyl group and an amino group in the molecule as a chain extender. It is also preferable to use trifunctional or higher-functional polyfunctional glycols, isocyanates, or the like within a range that does not impair the effects of the present invention.

  As the polymer diol, polyether glycol, polyester glycol, polycarbonate diol and the like are preferable. From the viewpoint of imparting flexibility and elongation to the yarn, it is preferable to use polyether glycol.

  Specific examples of the polyether glycol include polyethylene glycol, modified polyethylene glycol, polypropylene glycol, polytrimethylene ether glycol, polytetramethylene ether glycol (hereinafter abbreviated as PTMG), tetrahydrofuran (hereinafter abbreviated as THF) and Modified PTMG which is a copolymer of 3-methyl-THF, modified PTMG which is a copolymer of THF and 2,3-dimethyl-THF, modified PTMG which is a copolymer of THF and neopentyl glycol, THF and ethylene oxide And / or a random copolymer in which propylene oxide is randomly arranged, and the like. One of these polyether glycols may be used, or two or more thereof may be used. Among them, PTMG or modified PTMG is preferable.

  Next, as the diisocyanate, 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 preferable because of their heat resistance and strength. It is preferable because an elastic yarn made of high polyurethane can be obtained. Further, as alicyclic diisocyanate, for example, methylenebis (cyclohexylisocyanate), isophorone diisocyanate, methylcyclohexane-2,4-diisocyanate, methylcyclohexane-2,6-diisocyanate, cyclohexane-1,4-diisocyanate, hexahydroxylylene diisocyanate, hexa Hydrotolylene diisocyanate, octahydro-1,5-naphthalene diisocyanate and the like are preferable. The aliphatic diisocyanate can be effectively used especially for suppressing yellowing of the elastic yarn made of polyurethane. These diisocyanates may be used alone or in combination of two or more.

  As the chain extender used for the polyurethane, it is preferable to use at least one of low molecular weight diamine and low molecular weight diol. It should be noted that it may have a hydroxyl group and an amino group in the molecule, such as ethanolamine.

Examples of the low molecular weight diamine include ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, hexamethylenediamine, p-phenylenediamine, p-xylylenediamine, m-xylylenediamine, p, p'-. Examples thereof include methylenedianiline, 1,3-cyclohexyldiamine, hexahydrometaphenylenediamine, 2-methylpentamethylenediamine, bis (4-aminophenyl) phosphine oxide and the like. It is preferable to use one or more of these. Particularly preferred is ethylenediamine. By using ethylenediamine, it is possible to easily obtain a yarn excellent in elongation, elastic recovery, and heat resistance. A triamine compound capable of forming a crosslinked structure, such as diethylenetriamine, may be added to these chain extenders to such an extent that the effect is not lost. As the low molecular weight diol, ethylene glycol, 1,3 propanediol, 1 Typical examples are 1,4-butanediol, bishydroxyethoxybenzene, bishydroxyethylene terephthalate, and 1-methyl-1,2-ethanediol. It is preferable to use one or more of 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 an elastic yarn made of polyurethane having higher strength can be obtained.

  It is also preferable to use one kind or a mixture of two or more kinds of terminal blocking agents in the polyurethane. As the terminal blocking agent, dimethylamine, diisopropylamine, ethylmethylamine, diethylamine, methylpropylamine, isopropylmethylamine, diisopropylamine, butylmethylamine, isobutylmethylamine, isopentylmethylamine, dibutylamine, monoamines such as diamylamine, Preference is given to monools such as ethanol, propanol, butanol, isopropanol, allyl alcohol, cyclopentanol, monoisocyanates such as phenyl isocyanate.

  In the fiber structure of the present invention, it is preferable that the elastic yarn made of polyurethane contains a metal phosphate. By including the metal phosphate, it is possible to further improve the deodorizing property with respect to ammonia, acetic acid and the like, which are the main components of sweat odor and aging odor.

  From the viewpoint of deodorizing property, the metal phosphate in the present invention is preferably a tetravalent metal acid phosphate such as zirconium phosphate or titanium phosphate having a layered structure, and aluminum dihydrogen tripolyphosphate. More preferably, it is titanium phosphate and / or zirconium phosphate. These may be used alone or in combination of two or more.

  The content of the metal phosphate is preferably 0.5% by mass or more and 10% by mass or less based on the total mass of the elastic yarn made of polyurethane. When the content of the metal phosphate is 0.5% by mass or more, a higher deodorizing property of ammonia gas can be obtained when the cloth is formed, which is preferable. More preferably, it is 1.0 mass% or more. On the other hand, if the content exceeds 10% by mass, it is not preferable in terms of deterioration of stretchability and cost. More preferably, it is 7.0 mass% or less. Considering the balance of deodorant properties, physical properties, and cost, the range of 1.5 mass% or more and 5.0 mass% or less is particularly preferable.

  The metal phosphate preferably has an average primary particle diameter of 3.0 μm or less from the viewpoint of suppressing clogging of the spinning dope with the spinneret. It is more preferably 1.5 μm or less. Further, from the viewpoint of dispersibility, when the average primary particle diameter is smaller than 0.05 μm, the cohesive force increases and it becomes difficult to uniformly mix into the spinning dope, so that the average primary particle diameter is 0.05 μm or more. preferable. More preferably, it is 0.15 μm or more.

  Further, the elastic yarn made of polyurethane may contain various stabilizers and pigments. For example, hindered phenolic agents such as BHT and "Sumilyzer" (registered trademark) GA-80 manufactured by Sumitomo Chemical Co., Ltd., as various light stabilizers and antioxidants, "Tinubin" (registered trademark) manufactured by Ciba-Geigy, etc. Benzotriazole-based, benzophenone-based agents, phosphorus-based agents such as Sumilizer (registered trademark) P-16 manufactured by Sumitomo Chemical Co., Ltd., various hindered amine-based agents, various pigments such as iron oxide and titanium oxide, zinc oxide Inorganic substances such as cerium oxide, magnesium oxide, calcium carbonate, and carbon black, fluorine-based or silicone-based 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 that various antistatic agents such as a system are included. There is also preferred to have a bond with the polyurethane. And, in order to further enhance the durability especially to light and various kinds of nitric oxide, for example, nitric oxide scavengers such as HN-150 manufactured by Nippon Hydrazine Co., Ltd., "Sumilyzer" manufactured by Sumitomo Chemical Co., Ltd. (registered It is also preferable to contain a thermal oxidation stabilizer such as Trademark) GA-80 and a light stabilizer such as "Sumisorb" (registered trademark) 300 # 622 manufactured by Sumitomo Chemical Co., Ltd.

  Next, the method for producing the fiber structure of the present invention will be described in detail.

  The fiber structure of the present invention is treated in a bath with at least one alkyldiphenyl ether compound at the same time as or after dyeing the fiber structure including an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material. Can be obtained by doing.

  When processing in a bath at the same time as dyeing, a dyeing solution is prepared by mixing an alkyldiphenyl ether compound with auxiliary agents such as dyes and leveling agents used in normal dyeing, and dyeing at normal dyeing temperature and time. do it.

  In addition, after dyeing, the dyeing solution is once discharged, and when an aqueous solution containing an alkyldiphenyl ether compound is prepared again and treated in the bath, the temperature and time may be set separately to perform the treatment in the bath. In such a case, the temperature of the treatment in the bath is preferably in the range of 50 to 130 ° C. If it is lower than 50 ° C, washing durability becomes insufficient, and if it exceeds 130 ° C, the texture of the fiber structure may be impaired. The processing time is preferably in the range of 10 to 60 minutes.

  When preparing a dyeing solution or an aqueous solution containing an alkyldiphenyl ether compound, the pH of the solution is preferably adjusted within the range of 2.0 to 5.0. The pH may be adjusted as long as it is an acid usually used in dyeing and finishing, and examples thereof include acetic acid, formic acid, citric acid, malic acid and the like, and any of them may be used.

  As a device used for the treatment in the bath, any of a jet dyeing machine, a jet dyeing machine, a Jigger dyeing machine, a beam dyeing machine, a wince, etc. may be used.

  As another production method, it can be obtained by performing a padding treatment on a fiber structure including an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material, with at least one alkyldiphenyl ether compound. That is, a treatment liquid containing an alkyldiphenyl ether-based compound may be impregnated into the fiber structure, then squeezed with a mangle roll and heat-treated by a pad dry cure method. As the heat treatment, the drying temperature is preferably in the range of 100 to 150 ° C, and the finishing setting temperature is preferably in the range of 150 to 200 ° C. When preparing a treatment liquid containing an alkyldiphenyl ether compound, the pH of the liquid is preferably adjusted within the range of 2.0 to 5.0. The pH may be adjusted as long as it is an acid usually used in dyeing and finishing, and examples thereof include acetic acid, formic acid, citric acid, malic acid and the like, and any of them may be used. As a device used in the padding process, a general resin processing machine, a gravure roll, a knife coater, or the like may be used, and a dryer having a mangle roll, a heat setter, or the like may be used.

  It is also possible to prepare a treatment liquid containing an alkyldiphenyl ether compound by mixing it with a printing paste and apply it to the fiber structure at the same time as printing.

  As a manufacturing method at the yarn stage, it is possible to apply an alkyl diphenyl ether compound alone or in a mixture with an oil agent by using an oil agent application roll or the like in the application of an oil agent in dry spinning or melt spinning of an elastic yarn made of polyurethane. . Further, an alkyl diphenyl ether-based compound is used by using an oil-applying roll or the like when forming a composite processed yarn such as covering of synthetic fiber or natural fiber and elastic yarn made of polyurethane, air entanglement, false twist, false twist, core spun yarn, etc. It is also possible to apply the above alone or in combination with the oil agent.

  Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples.

<Washing method>
In accordance with the standard washing method described in SEK mark washing method for textile products (Establisher: General Incorporated Association Textile Evaluation Technology Council Product Certification Department, revision date: April 1, 2014), JIS L 0217: 1995. Using a household electric washing machine defined in Washing method 103 described in "Display symbols and handling method for handling textiles", the ratio of JAFET standard blended detergent (polyoxyethylene is 40 mL to 30 L of water at 40 ° C). Alkyl ether and sodium alpha-olefin sulfonate are added) to make a washing liquid, and a sample and a load cloth are added as necessary so that the bath ratio becomes 1:30, followed by washing for 5 minutes, dehydration and rinsing for 2 minutes. The steps of washing, dehydration, rinsing for 2 minutes, and dehydration were performed once, and this was repeated 10 times, followed by hanging and drying.
<Deodorant evaluation method>
SEK mark Textile product certification standard (Established by: Japan Textile Evaluation Technology Council Product Certification Department, Revision date: April 1, 2014) Was evaluated. Ammonia, acetic acid, isovaleric acid, and nonenal were used as odorous components.

  The initial concentrations of odorous components are 100 ppm of ammonia, 30 ppm of acetic acid, 38 ppm of isovaleric acid, and 14 ppm of nonenal. As a blank test, a 5L sample bag (made of film) was filled with only odorous components for each component, sealed, left for 2 hours, and then the residual gas concentration was measured using a gas detector tube corresponding to each component. Use the concentration. Next, a sample (10 cm x 10 cm) used for measurement is placed in a sample bag (made of film), filled with the above-mentioned predetermined concentration of odorous component, sealed, and the residual gas concentration after 2 hours is measured by a gas detector tube corresponding to each component. And measure this as the measured concentration. The measurement is performed 3 times, and the average value thereof is used to calculate the reduction rate of the residual gas concentration by the following formula, which is expressed as the deodorization rate.

Deodorization rate (%) of each deodorant component = ((blank test concentration-measured concentration of each sample) / blank test concentration)) x 100
The evaluation criteria of the deodorizing rate were as follows: ammonia 70% or more, acetic acid 70% or more, isovaleric acid 85% or more, and nonenal 75% or more.
<Calculation method of mass per unit of each fiber in the fiber structure>
It was calculated from the set value (ratio of each fiber) at the time of producing the knitted fabric and the measured value of the mass per unit of the knitted fabric.

(Example 1)
Using a 28-gauge circular knitting machine, 44 dtex of elastic yarn (Lycra T-127C manufactured by Toray Operontex Co., Ltd.) made of cationic dyeable polyester of 84 dtex 72 filament and polyurethane was arranged to form a bare fabric. Table 1 shows the mass per unit of the elastic yarn made of polyurethane and the cationic dyeable polyester.

A dyeing solution is prepared from the obtained knitted fabric under the following conditions, and at the same time as dyeing, treatment in a bath is performed at 120 ° C for 30 minutes, and then, as usual, soaping, washing with hot water, and then drying at 130 ° C and 180 ° C The finishing set was done in 1 minute.
Dye: Kayacryl Black BS-ED (Nippon Kayaku)
Sodium butyl diphenyl ether disulfonate represented by the following formula (2)

pH adjuster: 90% acetic acid 1 g / L
The details of the obtained fiber structure are shown in Table 1, and the results of evaluation of the deodorizing property before the washing and after 10 times of washing are shown in Table 2.

(Example 2)
The same knitted fabric as in Example 1 was used except that the mass per unit of the elastic yarn made of polyurethane and the cationic dyeable polyester was as shown in Table 1, and dyed with Kayacryl Black BS-ED (manufactured by Nippon Kayaku). After that, the liquid is once drained and treated in a bath with the treatment liquid under the following conditions at 80 ° C. for 20 minutes, then soaped as usual, washed with hot water and then dried at 130 ° C., 180 ° C. for 1 minute I did the finishing set.
Sodium dodecyl diphenyl ether disulfonate represented by the following formula (3)

pH adjuster: 90% acetic acid 1 g / L
The details of the obtained fiber structure are shown in Table 1, and the results of evaluation of the deodorizing property before the washing and after 10 times of washing are shown in Table 2.

(Example 3)
The same knitted fabric as in Example 1 was used except that the mass per unit of the elastic yarn made of polyurethane and the cationic dyeable polyester was as shown in Table 1, and dyed with Kayacryl Black BS-ED (manufactured by Nippon Kayaku). After that, as usual, soaping, washing with hot water, drying at 130 ° C, dipping / nipping with a mangle at a squeezing rate of 70% using the treatment liquid adjusted under the following conditions, and drying at 130 ° C Then, finishing setting was performed at 180 ° C. for 1 minute.
Aqueous solution of sodium gidodecyl diphenyl ether disulfonate represented by the following formula (4): 30 g / L

pH adjuster: citric acid 2 g / L
The details of the obtained knitted fabric are shown in Table 1, and the results of evaluation of the deodorizing property after the original fabric before washing and after 10 times of washing are shown in Table 2.

(Example 4)
Using a 28-gauge circular knitting machine, an elastic yarn 44dtex composed of a cationic dyeable polyester of 84 dtex 72 filaments and polyurethane containing 3 mass% of titanium phosphate as a metal phosphate was arranged to form a bare knitted fabric. Table 1 shows the mass per unit of the elastic yarn made of polyurethane and the cationic dyeable polyester. Processing after dyeing was carried out in the same manner as in Example 3 except that the obtained knitted fabric was used.

  The details of the obtained knitted fabric are shown in Table 1, and the results of evaluation of the deodorizing property after the original fabric before washing and after 10 times of washing are shown in Table 2.

(Comparative Example 1)
The same knitted fabric as in Example 4 was used except that the mass per unit of the elastic yarn made of polyurethane and the cationic dyeable polyester was as shown in Table 1, and sodium didodecyldiphenyl ether disulfonate represented by the formula (4) was used. The same processing was performed except that it was not present.

  The details of the obtained knitted fabric are shown in Table 1, and the results of evaluation of the deodorizing property after the original fabric before washing and after 10 times of washing are shown in Table 2.

  The deodorant fiber structure of the present invention is excellent in deodorizing sweat odors and aging odors, and is used for clothing such as socks, legwear, innerwear, outerwear and sportswear, and linings, interlinings, narrow tapes and other clothing. It can be used for materials, daily materials such as disposable diapers and sanitary napkins, and industrial materials.

Claims (5)

Comprise an elastic yarn comprising a polymer diol and diisocyanate from polyurethane starting material, and an alkyl diphenyl ether compound seen at least one free, relative to the weight of the elastic yarn mass ratio of the alkyl ether-based compound consists of polyurethane A fiber structure in which the amount is in the range of 10 to 50 and the alkyldiphenyl ether compound is an alkyl diphenyl ether sulfonic acid or an alkyl diphenyl ether sulfonate . The fiber structure according to claim 1, wherein the elastic yarn made of polyurethane contains a metal phosphate. The fiber structure according to claim 2 , wherein the metal phosphate is titanium phosphate and / or zirconium phosphate. An alkyldiphenyl ether-based compound in which an alkyldiphenyl ether-based compound is an alkyldiphenyl ether sulfonic acid or an alkyldiphenyl ether sulfonate, at the same time as or after dyeing, a fiber structure including an elastic yarn made of polyurethane whose starting material is a polymer diol and diisocyanate. A process for producing a fibrous structure according to claim 1, which is treated in a bath with at least one of the compounds. A fibrous structure including an elastic yarn made of polyurethane having a polymer diol and a diisocyanate as a starting material is padded with at least one alkyldiphenylether compound in which the alkyldiphenylether compound is alkyldiphenylethersulfonic acid or alkyldiphenylethersulfonate. The manufacturing method which manufactures the fiber structure of Claim 1 which processes.