JP2012211413A - Deodorant fiber structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber structure containing a synthetic fiber excellent in a deodorant effect to ammonia and acetic acid which are major constituents of sweat smell.SOLUTION: In a fiber structure containing a synthetic fiber, a deodorant-processing agent comprising an emulsion of a cationic quaternary ammonium salt and an amide derivative of undecylenic acid having carbon numbers of not greater than 20 and not less than 8 (hereinafter referred to undecylenic acid derivative) is fixed on a fiber surface with a substance having an anion group fixed.

Description

The present invention relates to a fiber structure suitable for inner, sports, and outdoor materials excellent in deodorizing effect on ammonia and acetic acid, which are main components of sweat odor.

  Many fiber structures having deodorant properties have been developed so far, and functional groups are imparted to the fiber surface by fixing deodorant fine particles to the fiber surface together with a binder, or by graft polymerization of acrylic acid or the like. Methods have been proposed.

  Examples of those that impart deodorant fine particles include those in which an inorganic compound, a polyvinylamine compound, and a synthetic resin are attached to the fiber surface (Patent Document 1; Japanese Patent Laid-Open No. 10-60778), or an oxidation having a photocatalytic function. A material in which titanium or zeolite, which is porous fine particles, is fixed to a fiber surface with a binder such as silicone (Patent Document 2; Japanese Patent Laid-Open No. 2000-54270) has been proposed. However, it is necessary to use a large amount of deodorizing fine particles in order to obtain high deodorizing performance, and a large amount of binder is required to fix a large amount of deodorizing fine particles, and the texture is hardened. In addition, many problems such as whitening of the fiber structure surface occur. In addition, the deodorant fine particles are buried inside the binder resin unless the use ratio of the binder and the deodorant fine particles is optimized, and there is a problem that a sufficient deodorizing effect cannot be exhibited.

  As a method for graft polymerization of acrylic acid, a method in which an ethylenically unsaturated organic acid is graft-polymerized on a polyester fiber (Patent Document 3; JP 2000-226767 A) has been proposed. However, these have complicated processing steps, and the resulting fibers have problems such as a decrease in strength over time due to hydrolysis, and are currently not on the market as products.

  From the viewpoint of antibacterial and deodorant, a fiber finish is proposed as a composition containing a cationic quaternary ammonium salt and an amide derivative of undecylenic acid having 8 to 20 carbon atoms (Patent Document 4). Patent No. 4398557), which merely describes the contents to be processed on the cotton fabric, and even when used on synthetic fibers, the durability was low.

Japanese Patent Laid-Open No. 10-60778 JP 2000-54270 A JP 2000-226767 A Japanese Patent No. 4398557

In view of the background of such prior art, the present invention provides a fiber structure suitable for inner, sports and outdoor materials excellent in deodorizing effect against ammonia, acetic acid and the like, which are main components of sweat odor. Is.

The present invention has the following configuration in order to solve the above problems.
(1) In a fiber structure using a fiber to which a substance having an anionic group is fixed, a cationic quaternary ammonium salt and a fatty acid ester derivative or amide derivative having 8 to 20 carbon atoms are fixed on the fiber. A fiber structure characterized by having
(2) The fiber structure according to (1), wherein the anionic group is a sulfo group and / or a carboxyl group.
(3) The fiber structure according to the above (1) or (2), wherein the fiber pH is 3.5 to 6.5.
(4) The fiber structure according to any one of the above (1) to (3), wherein the fiber is a polyester fiber.

According to the present invention, a deodorizing agent composed of a quaternary ammonium salt and a fatty acid derivative is fixed to the anionized fiber surface, and the dough pH is adjusted to 3.5 or more and 6.5 or less, whereby three components of sweat odor Thus, it is possible to provide a woven or knitted fabric that exhibits a deodorizing effect on all of ammonia, acetic acid, and isovaleric acid that are excellent in water absorption.

  Since the fiber structure of the present invention has these properties, it is particularly suitably used for inner, sports, outdoor use and the like.

  Hereinafter, the present invention will be described in detail.

  In the present invention, as a result of intensive studies on fixing an ester derivative or amide derivative of a fatty acid having a deodorizing effect (hereinafter referred to as a fatty acid derivative) to the fiber surface with good durability, it is effective to anionize the fiber surface. Furthermore, in order to carry out such anionization with good durability and simplicity, it was investigated that a substance having an anion group was previously fixed to the fiber surface and further a fatty acid derivative was fixed to solve such problems all at once. .

  The substance having an anionic group is not particularly limited, but a substance having at least one of a sulfo group and a carboxyl group is preferable for enhancing the fixing property of the fatty acid derivative. Synthetic tannins, vinyl sulfonic acid polymers, and substances containing a carboxyl group are preferably hydroxy acid derivatives.

  Examples of the synthetic tannin used in the present invention include oligomer type compounds in which sulfonated products such as naphthylamine, phenol, naphthol and the like are bonded with formaldehyde, phenolic compounds, thiophenolic compounds, dihydroxyphenylsulfone compounds, naphtholic compounds. Compounds, sulfonamide compounds, carbodiimide compounds, and the like. Further, there are those having polar groups such as carbonamide, sulfonic acid amide, sulfone, and ureido. Synthetic tannins also include novolak-type resins and resol-type resins depending on the synthesis conditions. These can be used alone or as a mixture in an arbitrary ratio.

  These synthetic tannins can be adsorbed in an aqueous solution in a bath, or dipped and niped into a fiber structure, and then fixed by heat treatment using a pad dry cure method. In order to fix, it is preferable to process by a pad dry cure method. In particular, after fixing the synthetic tannin to the fiber surface in the form of a film, it is preferable to perform soaping after curing in order to remove excess resin in order to improve process passability.

  Such resin is preferably 0.05 to 4 wt%, more preferably 0.1 to 2 wt% in terms of solid content with respect to the fiber weight. If it is less than 0.05 wt%, the fatty acid derivative is not sufficiently fixed, and if it exceeds 4 wt%, discoloration during processing may increase.

  Further, as the vinyl sulfonic acid polymer having a carboxyl group, 2-acrylamido-2-methylpropane sulfonic acid, 2-allyloxy-2-hydroxypropane sulfonic acid, sodium styrene sulfonate, etc. can be used, and these are polymerized. A fiber structure having a sulfone group can be obtained by fixing the product to the fiber surface, or by using these monomers and a polymerization initiator in combination and polymerizing on the fiber surface.

  In order to adhere to the fiber surface with good durability, such a vinyl sulfonic acid monomer and ammonium persulfate as a polymerization initiator are used in combination to form a mixed aqueous solution. After the fiber structure is dip-niped into the mixed aqueous solution, 100 to 150 It is preferable to perform steaming at a temperature of 0 ° C. By this treatment, the vinyl sulfonic acid polymer is coated on the fiber surface and durability is improved.

  The hydroxy acid derivatives include glycolic acid, lactic acid, tartronic acid, glyceric acid, hydroxybutyric acid, malic acid, citric acid, tartaric acid, citramalic acid, isocitric acid, leucine acid, mevalonic acid, pantoic acid, ricinoleic acid, ricinaleic acid. , Cerebronic acid, quinic acid, shikimic acid, salicylic acid, creosote acid, vanillic acid, syringic acid, pyrocatechuic acid, resorcylic acid, protocatechuic acid, gentisic acid, orceric acid, gallic acid, mandelic acid, benzylic acid, atrolactic acid, Derivatives such as mellitoic acid, furoretic acid, coumaric acid, umbelic acid, caffeic acid, ferulic acid, sinapinic acid and the like can be mentioned.

The term “hydroxy acid derivative” as used herein refers to a form composed of any monomer, polymer, or copolymer of hydroxy acid, and is fixed on the fiber in such a state.
The method of fixing the hydroxy acid derivative is not particularly limited, but a method of fixing by a pad dry cure method in which a fiber structure is dip-niped in a hydroxy acid aqueous solution and then heat-treated is preferable, and preferably after drying. Is preferably subjected to a dry heat treatment at a temperature of 70 to 200 ° C. for 0.1 to 30 minutes to improve the adhesion.

The adhesion amount of the hydroxy acid derivative is preferably 0.01 to 100 wt% with respect to the fiber structure, and more preferably 0.1 to 10 wt%. When the adhesion amount is less than 0.01 wt%, the fatty acid derivative is not sufficiently fixed, and when it is more than 100 wt%, the fastness tends to decrease and the texture tends to harden.
In the present invention, a deodorizing agent comprising a fatty acid derivative having 8 to 20 carbon atoms and a cationic quaternary ammonium salt is fixed on a synthetic fiber to which a substance having such an anionic group is fixed. It is.
The deodorant processing agent comprising such a fatty acid derivative and a cationic quaternary ammonium salt is preferably an aqueous dispersion of a packet in which a fatty acid derivative is encapsulated in a bilayer multilayer structure comprising a quaternary ammonium salt, Anionic acetic acid and isovaleric acid can be adsorbed by the cationic nature of the quaternary ammonium salt. Also, the parcel aqueous dispersion adheres to the anionized fiber surface by ionic bonds, and the moisture in the parcel aqueous dispersion evaporates in the drying process to form a strong parcel, which makes excellent laundry Durability can be realized.
As the quaternary ammonium salt of the present invention, generally known quaternary ammonium can be used. As the quaternary ammonium salt capable of forming a bilayer membrane, an alkyl group having 8 to 22 carbon atoms can be used. Those having at least one of are preferably used. Examples of such quaternary ammonium salts include stearyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dodecyl trimethyl ammonium chloride, dioleyl dimethyl ammonium bromide, stearoyl N, N-dimethylethylenediamide dimethyl sulfate quaternized product, Stearoyl diethylenetriamine dimethyl sulfate quaternized product and the like.
As the fatty acid used in the fatty acid derivative of the present invention, those having 8 to 20 carbon atoms are used. Examples of such fatty acids include undecylenic acid, palmitic acid, oleic acid, lauric acid, stearic acid, and the like.

Examples of the fatty acid derivative include one or more compounds selected from fatty acid alkyl esters, fatty acid polyalkylene glycol esters, fatty acid polyol esters, fatty acid alkanolamides, fatty acid alkylamides, and fatty acid polyalkylene polyamides.
The mixing ratio of the fatty acid derivative and the quaternary ammonium salt is preferably 5:99 to 90:10, more preferably from fatty acid derivative: quaternary ammonium salt (weight ratio) from the viewpoint of inclusion of the fatty acid derivative. Is 10:90 to 80:20, more preferably 20:80 to 60:40.

  Among the above fatty acids, undecylenic acid has an excellent antibacterial action, and when undecylenic acid is used, the processed fabric becomes a fabric excellent in antibacterial and deodorizing performance, so use undecylenic acid. Is preferred.

  Among the undecylenic acid derivatives, esters of undecylenic acid and glycerin are preferable. An ester of undecylenic acid and glycerin is preferable because it has a high antibacterial performance and is oily per se, so that it can adsorb nonenal which is a component of an aging odor.

The blending amount of the undecylenic acid derivative in the deodorant processing composition is not particularly limited, but is preferably 1.0 to 30.0% by weight, and 1.0 to 20.0% by weight from the viewpoint of dispersion stability of the emulsion. % Is particularly preferred.
In the present invention, a cationic quaternary ammonium salt and a fatty acid derivative (hereinafter referred to as “deodorant”) are added to the fiber structure on the fiber to which a substance having an anion group is fixed. It is preferable that 5 to 5.0 wt% is fixed. If it is less than 0.5 wt%, for example, in the case of a thin ground with a fabric weight of 100 g / m ² or less, there is a possibility that a sufficient deodorizing effect may not be obtained because the amount of adhesion is small. Since there is too much adhesion amount of an agent, there exists a problem that an excess dye is pulled out and fastness falls, More preferably, it is 1.0-4.5 wt%.
In the present invention, as a method for imparting a deodorant processing agent that is a fatty acid derivative, a pad-drying pad that is heat-treated after dipping and niping a fiber structure in an emulsion treatment or an emulsion dispersion in a emulsion is used. Although there is a method of fixing by a curing method, in order to fix the fiber surface more firmly, it is preferable to treat by a pad dry curing method.
Moreover, in this invention, it is preferable that the pH of the fiber in a fiber structure shall be 3.5-6.5. By making the fiber pH acidic, the acidity of the deodorizing agent can be further stabilized, the acidity can be maintained even after repeated washing, and basic ammonia can be neutralized. As a result, when the total pH of the main causative substances that require deodorization such as isovaleric acid, acetic acid gas, and ammonia gas is lower than 3.5, the acidity is too strong, which may cause rough skin. If the pH is greater than 6.5, the fiber may become alkaline due to repeated wearing and washing, making it difficult to neutralize ammonia. More preferably, it is 4.0-6.0. The method for adjusting the fiber pH to 3.5 to 6.5 is not particularly limited, but a commonly used non-volatile acid such as citric acid or malic acid is added simultaneously with the fatty acid derivative. The method is preferred.
Examples of the synthetic fiber of the present invention include polyester fiber, polyethylene fiber, polypropylene fiber, polyamide fiber, polyvinyl alcohol fiber, polyvinyl chloride fiber, polyacrylonitrile fiber, and the like. Polyester fibers are preferable for fixing with good properties, and the effects of the present invention are particularly exhibited.
Examples of the polyester fiber include a polyester fiber containing an aromatic component and an aliphatic polyester fiber. Examples of the polyester fiber containing an aromatic component include polyethylene terephthalate, polybutylene terephthalate, and polypropylene terephthalate. Examples of the aliphatic polyester fiber include poly-L lactic acid, poly-D lactic acid and poly-D, homopolymer composed of L-lactic acid, and polylactic acid-glycolic acid copolymer.
In the present invention, 100% of such synthetic fibers may be used, and other fibers may be included.
Examples of fibers other than synthetic fibers include semi-synthetic fibers such as rayon and acetate, and natural fibers such as cotton, hemp, silk, and wool. These fibers can be used alone or in admixture of two or more, and short fibers, long fibers or these may be mixed. Further, depending on the application, polyurethane elastic fibers may be mixed.
Since the fiber structure of the present invention exhibits a high deodorizing effect, it is suitably used for inner, sports, outdoor materials and the like.

EXAMPLES The present invention will be described in detail below using examples, but the present invention is not limited to these examples. In addition, each performance evaluation in an Example was performed with the following method.
(1) Fabric PH
The fabric PH is measured in accordance with the method specified for the PH of the extract of the JISL1018 knitted fabric and the method specified for the PH of the extract of the woven fabric of JIS1096. That is, a test piece of 5.0 g ± 0.1 g is taken from the measurement sample and is made into pieces of about 1 cm × 1 cm. Separately, 50 ml of distilled water is put into a 200 ml flask equipped with a glass stopper, and after gently boiling for 2 minutes, the flask is moved away from a heat source, the above-mentioned test piece is placed in the flask, the flask is stoppered and left for 30 minutes. During this time, loosen the stopper occasionally and shake the flask. After 30 minutes, the extract is adjusted to 25 ° C. ± 2 ° C., and the pH of the extract is measured with a PH measuring instrument specified in JISZ8805. The test is performed on two test pieces, the average value is calculated, and rounded to one decimal place.
(2) Durability of washing Into an automatic inversion swirl electric washing machine, “JAFET standard detergent” (polyoxyethylene alkyl ether) is added in a ratio of 40 mL to 30 L of water, and the bath ratio is 1:30, 40 ± 2 ° C. Wash for 25 minutes under strong conditions at the temperature of the water, then drain and rinse for 10 minutes in running water. After draining, rinse for 10 minutes in the same manner, and then dewatering into 5 washes. After repeating twice, it was air-dried.
(3) Deodorant component reduction rate 100 μL of 0.29% aqueous ammonia solution is placed in a 0.5 L polyethylene washing bottle, sealed, poured into a hot water bath at 50 ° C. for 1 minute, taken out, and the odor in the container after standing for 3 minutes is removed. Measure using a gas detector tube (Gastec detector tube, ammonia 3M), and use this as the blank test concentration.
In addition, the test cloth cut to 10 cm × 5 cm is put into another 0.5 L polyethylene washing bottle, similarly, 100 μL of 0.29% aqueous ammonia solution is sealed, and after water bathing at 50 ° C. for 1 minute, it is taken out, The odor in the container after being left for 30 minutes is measured using a gas detector tube (Gastech detector tube, ammonia 3M), and this is defined as the residual concentration.
The deodorization rate is calculated by the following formula, and the larger the value, the better the deodorization property.

Deodorant component reduction rate (%) = (1- (gas detector tube measurement concentration) / (blank test concentration)) × 100
For acetic acid, the same evaluation as ammonia is performed except that 20 μL of 5% acetic acid aqueous solution is added.
Moreover, in each Example, the following deodorizing agent was used.

In a stainless steel 1L emulsifier equipped with a vacuum device, scraper stirrer, and superheater, 10% trimethylammonium chloride as a cationic quaternary ammonium salt, 10% undecylenic acid glyceride as a fatty acid derivative, and fluid as an oil layer component A component using 10% of paraffin and an amount corresponding to 20% by weight of the total amount of water to be used are charged, under a reduced pressure of 30 mmHg, at a temperature of 70 ° C. (temperature 15 to 20 ° C. higher than the phase transition temperature) at 100 r / min for 60 minutes. Stirring to obtain a liquid crystal structure composition. Further, under the same conditions, the remaining amount of water previously heated to 70 ° C. was added and stirred for 60 minutes to obtain a deodorizing agent.
[Example 1]
Using a 28-gauge circular knitting machine, 84T-72 filament polyester false twisted yarn was knitted with a smooth structure to obtain a raw machine.

  Next, after scouring under normal conditions, it was dyed and set with a fluorescent dye to prepare a test cloth. For such a sample cloth, as a substance having an anion group, a working fluid prepared by preparing a 30 g / L aqueous solution using “Dimafix ESH” (manufactured by Meisei Chemical Industry Co., Ltd.) using a polyhydric phenol compound. After dipping / niping at a drawing ratio of 80%, drying was performed at 130 ° C., setting at 160 ° C. for 1 minute, followed by hot water washing at 40 ° C., followed by drying at 130 ° C.

    Next, the following processing liquid was prepared as a deodorizing process, dip / niped at a drawing ratio of 80% on the fabric obtained above, dried at 130 ° C., and set at 160 ° C. for 1 minute.

Processing liquid Deodorant 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the obtained fabric was 4.9, and the deodorizing performance was improved for both ammonia and acetic acid, and showed a good deodorizing component reduction rate after washing.

The results are shown in Table 1.
[Example 2]
For the living machine similar to that in Example 1, “BS-PRS” (NO.002) (manufactured by Konishi Chemical Co., Ltd.), which is a water-soluble phenolic resin, is used as the substance having an anion group, so that it becomes 20% owf. The processing liquid was prepared, and the same bath ratio between the sample cloth and the processing liquid as in Example 1 was set to 1:20, and the treatment was performed in a bath at 130 ° C. for 30 minutes. At this time, maleic acid was added to the processing liquid so that the pH of the processing liquid was 4.

Next, it was washed and dried with water, and the following processing liquid was prepared as a deodorizing process. After dipping / niping the fabric obtained above with a drawing ratio of 80%, drying at 130 ° C. and setting to dry heat at 160 ° C. for 1 minute Then, performance evaluation was performed.
Processing liquid Deodorant 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the resulting fabric was 4.5, and the deodorizing performance was improved for both ammonia and acetic acid, and showed a good deodorizing component reduction rate after washing.

The results are shown in Table 1.
[Example 3]
In order to adhere a substance having an anion group to the same knitted fabric as in Example 1, the following working fluid 1 was used to prepare a dip / dip of 80% for the sample cloth similar to Example 1. After the nip, it was dried at 130 ° C. and immediately treated with a heating steamer at 105 ° C. for 5 minutes, washed with hot water and dried at 160 ° C. for 1 minute.
Processing fluid 1
AMPS (2-acrylamido-2-methylpropanesulfonic acid, active ingredient 100%)
60g / L
Polyethylene glycol dimethacrylate whose polyalkylene oxide segment has a molecular weight of 1000 (active ingredient 100%)
120 g / L
Ammonium persulfate 3g / L
Next, washing and drying were performed to prepare the following processing liquid 2 as a deodorizing process. After dipping / niping the fabric obtained above with a drawing rate of 80%, drying at 130 ° C. and 1 minute at 160 ° C. Dry heat setting was performed and performance evaluation was performed.
Processing fluid 2
Deodorant finishing agent 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the resulting fabric was 4.7, and the deodorizing performance was improved for both ammonia and acetic acid, and showed a good deodorizing component reduction rate after washing.

The results are shown in Table 1.
[Example 4]
In order to attach a substance having an anion group to the sample cloth similar to Example 1, a 20 g / L aqueous solution of citric acid (anhydrous) (Nacalai Tesque Co., Ltd., Nacalai Standard Grade 1) was prepared as a processing liquid, After dipping / niping at a drawing ratio of 80%, drying was performed at 130 ° C., setting at 160 ° C. for 1 minute, followed by hot water washing at 40 ° C., followed by drying at 130 ° C.
Next, it was washed with water and dried, and the following processing liquid was prepared as a deodorizing process. After dipping / niping the fabric obtained above at a drawing rate of 80%, drying at 130 ° C. and drying at 160 ° C. for 1 minute. Heat setting was performed and performance evaluation was performed.
Processing fluid composition Deodorant finishing agent 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the resulting fabric was 4.7, and the deodorizing performance was improved for both ammonia and acetic acid, and showed a good deodorizing component reduction rate after washing.

The results are shown in Table 1.
[Example 5]
In order to attach a substance having an anion group to the sample cloth similar to Example 1, a 30 g / L aqueous solution of DL malic acid (Nacalai Tesque Nacalai Standard Grade) was prepared as a working solution, After dipping / niping at a rate of 80%, it was dried at 130 ° C., set for dry heat at 160 ° C. for 1 minute, then washed with hot water at 40 ° C. and then dried at 130 ° C.
Next, it was washed and dried with water, and the following processing liquid was prepared as a deodorizing process. After dipping / niping the fabric obtained above with a drawing ratio of 80%, drying at 130 ° C. and setting to dry heat at 160 ° C. for 1 minute Then, performance evaluation was performed.
Processing liquid Deodorant 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the resulting fabric was 4.2, and the deodorizing performance was improved for both ammonia and acetic acid, and showed a good deodorizing component reduction rate after washing.

The results are shown in Table 1.
[Comparative Example 1]
For the sample cloth similar to Example 1, the following processing liquid was prepared as a deodorizing process, dip / niped at a drawing ratio of 80%, dried at 130 ° C., and set to 160 ° C. for 1 minute, Performance evaluation was performed.
Processing liquid Deodorant 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The resulting fabric had a pH of 5.0.
As for deodorization performance, both ammonia and acetic acid show excellent deodorization component reduction rates, but after washing, the deodorization performance decreased greatly.

The results are shown in Table 1.
[Comparative Example 2]
For a sample similar to Example 1, 30 g / L aqueous solution of “SenkaFix 401” (manufactured by SENKA Co., Ltd., cationic polymer) was prepared as a processing liquid, and after dip / nip at a drawing ratio of 80%, The film was dried at 130 ° C., set at 160 ° C. for 1 minute, and then washed with hot water at 40 ° C. and then dried at 130 ° C.
Next, the following processing liquid was prepared as a deodorizing process, and after dipping / niping on the fabric obtained above with a drawing ratio of 80%, drying at 130 ° C. and setting at 160 ° C. for 1 minute with dry heat, performance Evaluation was performed.
Processing liquid Deodorant 30g / L
Malic acid 0.5g / L
PH of processing fluid 3
The pH of the obtained fabric was 4.9, and the deodorizing performance of both ammonia and acetic acid showed excellent deodorizing component reduction rate when processed, but the deodorizing performance decreased greatly after washing.

The results are shown in Table 1.
[Comparative Example 3]
A 30 g / L aqueous solution of “Dimafix ESH” (manufactured by Meisei Chemical Industry Co., Ltd.) was mixed with the same sample fabric as in Example 1, dip / niped at a drawing ratio of 80%, and then dried at 130 ° C. Set at 160 ° C. for 1 minute, then washed with hot water at 40 ° C. and then dried at 130 ° C.
Next, the following processing liquid was prepared as a deodorizing process, dipped / niped at a drawing ratio of 80% to the fabric obtained above, dried at 130 ° C., and set to dry heat at 160 ° C. for 1 minute, and performance evaluation Went.
An aqueous dispersion of titanium oxide with an anionic surfactant (Ishihara Sangyo Co., Ltd. photocatalyst titanium particle system 20 nm, solid content 40%) 20 g / L
"BY22-826"
(Silicon resin. Toray Dow Corning Silicone Co., Ltd.) 10g / L
The pH of the resulting fabric is 6.4, and the deodorizing performance of both ammonia and acetic acid shows excellent deodorizing component reduction rate, but the washing durability is low and the deodorizing performance is greatly reduced after washing. As a result.
The results are shown in Table 1.

  It can be said from Table 1 that the fiber according to the present invention is a synthetic fiber-containing fiber structure suitable for inner, sports, and outdoor materials excellent in deodorizing effect on ammonia and acetic acid, which are main components of sweat odor.

Claims (4)

In a fiber structure using a fiber to which a substance having an anionic group is fixed, a cationic quaternary ammonium salt and a fatty acid ester derivative or amide derivative having 8 to 20 carbon atoms are fixed on the fiber. Characteristic fiber structure. The fiber structure according to claim 1, wherein the anionic group is a sulfo group and / or a carboxyl group. The fiber structure according to claim 1 or 2, wherein the fiber pH is 3.5 to 6.5. The fiber structure according to any one of claims 1 to 3, wherein the fiber is a polyester fiber.