TWI716351B - Deodorant fabric - Google Patents

Abstract

The present invention provides a fabric made of a mixture of polyester fibers and polyurethane elastic yarns that has excellent deodorizing properties against sweat and elderly odors.

The fabric of the present invention is a mixed fabric containing polyurethane elastic yarn and cationic dyeable polyester fiber. The above-mentioned polyurethane elastic yarn is measured by the test tube method of the Fiber Evaluation Technology Council The deodorizing rate of 0.15g of polyurethane elastic yarn to ammonia gas is more than 40% after 0 times and 10 times of washing treatment, and the mixing rate of polyurethane elastic yarn is more than 5% by mass and 30% by mass or less, and the mass of 10cm×10cm is 1g or more.

Description

Deodorant fabric

The present invention relates to a fabric made of mixed polyester fibers and polyurethane elastic yarns with excellent deodorizing properties against perspiration and elderly odors.

In recent years, health awareness has increased, and stretchable materials have been widely used in underwear and functional underwear. In particular, in summer underwear or sports fields, it is preferred to use polyester-based fibers with excellent quick-drying properties or durability.

Among these applications, there is a very high demand for the deodorization of sweat odor and elderly odor. In order to provide such a function, it has been proposed to provide the function by a post-processing method (Patent Document 1).

In addition, a method of directly containing a deodorant in the elastic fiber imparting stretchability has also been proposed (Patent Document 2). For this, inorganic deodorants such as activated carbon, silver-containing zeolite, zeolite, fine-particle zinc oxide, and metal phosphate are used. These inorganic deodorants have excellent characteristics of weather resistance, chemical resistance, and low acute oral toxicity. In addition, due to the high heat resistance, the deodorant properties of the deodorant itself will not be impaired during the manufacture or processing of elastic fibers.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2012-140731

[Patent Document 2] Japanese Patent Re-listed 2012/053401 Publication

However, although products with temporary deodorizing properties can be obtained by post-processing methods, there are problems in the case of stretch fabrics: the texture is damaged by the adhesive used to attach the functional agent, or the processing steps change Long leads to lower productivity, or repeated washing leads to lower deodorant properties as a fabric.

In addition, if it is desired to combine an elastic fiber containing a deodorant and a normal polyester fiber to exhibit deodorizing properties, there is a problem that the ratio of the elastic fiber in the fabric (hereinafter referred to as The mixing rate) is very high, so that the desired texture or physical properties of the fabric cannot be obtained.

The subject of the present invention is to provide a fabric that solves the above-mentioned problems, has excellent deodorizing properties against perspiration odor and old man odor, and has stretchability.

The present invention for solving the above-mentioned problems adopts any of the following methods.

(1) A fabric comprising polyurethane elastic yarn and cationic dyeable polyester fiber, and having a mass of 10 cm×10 cm of 1 g or more, and regarding the above polyurethane elastic yarn, according to The deodorizing rate of ammonia gas obtained by measuring 0.15g of the polyurethane elastic yarn by the detection tube method specified by the Fiber Evaluation Technology Council after washing treatment 0 times and 10 times is more than 40%. The mixing rate in the fabric of the polyurethane elastic yarn is 5 mass% or more and 30 mass% or less.

(2) The fabric according to (1), wherein the mixing rate in the fabric of the cationic dyeable polyester fiber is 40% by mass or more.

(3) The fabric of (1) or (2), which is dyed with cationic dyes.

(4) The fabric according to any one of (1) to (3), wherein the polyurethane elastic yarn contains an inorganic deodorant in a range of 0.5% by mass to 10% by mass.

According to the present invention, it is possible to obtain an excellent deodorizing property against sweat odor and elderly odor, and having a stretchability. Shrinkable fabric. Therefore, clothes using the fabric become clothes with excellent deodorizing function against perspiration odor and elderly odor.

Hereinafter, the present invention will be described in more detail.

The present invention found that: by including polyurethane elastic yarn and having a specific mass per unit area, the polyurethane elastic yarn with a specific deodorizing rate to ammonia gas and cationic Dyeable polyester fibers are combined with polyurethane elastic yarns in a specific range of mixing ratios in the fabric to obtain fabrics with excellent deodorizing properties against perspiration and elderly odors.

The fabric of the present invention contains polyurethane elastic yarn and cationic dyeable polyester fiber. By including polyurethane elastic fiber in the range of 5% by mass or more and 30% by mass or less in the fabric, it is possible to obtain the acetic acid gas, isovaleric acid, Nonenal is effective in deodorizing.

By mixing cationic dyeable polyester fibers, the dyeing position of cationic dyes shows deodorization to ammonia gas, thus becoming a fabric with a good balance of deodorizing properties against sweat and elderly odors. In addition, the blending rate of cationic dyeable polyester fibers in the fabric is 40% by mass or more, which is better for the performance of deodorizing ammonia gas, and the upper limit is 95% by mass or less than for acetic acid gas, isovaleric acid, and nonene. The deodorizing performance of aldehyde is better. Furthermore, when the mixing rate in the cationic dyeable polyester fiber fabric is 40% by mass or less, the dyeing is preferably dyeing with cationic dyes.

By setting the mass of 10cm×10cm to 1g or more, sufficient amounts of polyurethane elastic yarn and cationic dyeable polyester fiber can be ensured for deodorization performance. Moreover, in terms of wearing feeling or texture when it is made into clothes etc., the mass of 10 cm×10 cm is preferably 7 g or less.

Regarding the polyurethane elastic yarn used in the present invention, 0.15 g of the polyurethane elastic yarn is measured according to the test tube method stipulated by the Fiber Evaluation Technology Council to deodorize ammonia The rate is more than 40% after 0 times and 10 times of washing treatment. By using the polyurethane elastic yarn in the range of 5% by mass or more and 30% by mass or less in the fabric, the original cationic dyeable polyester fiber has deodorizing properties against ammonia. In addition, it fully exhibits the deodorizing properties of polyurethane elastic yarn for acetic acid gas, isovaleric acid and nonenal.

Regarding the polyurethane elastic yarn used in the present invention, 0.15 g of the polyurethane elastic yarn is measured according to the test tube method stipulated by the Fiber Evaluation Technology Council to deodorize ammonia The rate is more than 40% after 0 times and 10 times of washing treatment. The so-called test tube method specified by the Fiber Evaluation Technology Council is a method to determine the extent to which the specified sample reduces the ammonia within 2 hours. The method is obtained by applying this method to 0.15 g of polyurethane elastic yarn The deodorizing rate of ammonia indicates the deodorizing rate of ammonia contributed by the polyurethane elastic yarn in the fabric. The method for obtaining the polyurethane elastic yarn having the deodorizing rate to ammonia gas is not particularly limited, and one containing an inorganic deodorant having deodorizing property to ammonia gas can be preferably used. By containing the inorganic deodorant which has the deodorizing ability to ammonia gas, the original deodorizing property of polyurethane elastic yarn to acetic acid gas, nonenal gas and isovaleric acid gas can be maintained without compromising In this case, improve the deodorization of ammonia.

As the inorganic deodorant, metal phosphates containing zirconium, titanium, aluminum, and calcium, zinc-containing silicon dioxide, etc. can be used. Among them, from the viewpoint of the deodorization of ammonia, it is preferred to use at least one selected from the group consisting of zirconium phosphate, titanium phosphate, and aluminum dihydrogen tripolyphosphate having a layered structure, and it is particularly preferred Zirconium phosphate.

In addition, from the viewpoint of the deodorizing properties of ammonia, metal phosphates such as zirconium phosphate are preferably those that do not support metal ions such as silver ions or copper ions.

The content of the inorganic deodorant is in the range of 0.5% by mass to 10% by mass relative to the total mass of the polyurethane elastic yarn. If the content of inorganic deodorant does not reach 0.5 mass %, it may be difficult to obtain sufficient deodorizing properties for ammonia when fabricated. More preferably, it is 1.5% by mass or more. On the other hand, if the content exceeds 10% by mass, deterioration of stretch characteristics or increase in cost may occur. More preferably, it is 7.0% by mass or less. In consideration of the balance between deodorizing properties for ammonia gas, physical properties, and cost, the range is particularly preferably 1.5% by mass or more and 5.0% by mass or less.

Furthermore, in the present invention, from the viewpoint of suppressing clogging of the spinning head by the spinning dope, the inorganic deodorant is preferably a powder having an average primary particle diameter of 3.0 μm or less. More preferably, it is 1.5 μm or less. From the viewpoint of dispersibility, when the average primary particle size is less than 0.05 μm, the cohesive force is high and it is difficult to uniformly mix in the spinning dope. Therefore, the average primary particle size is preferably 0.05 μm or more.

In addition to inorganic deodorants, the polyurethane elastic yarn used in the present invention may also contain chemical agents such as lightfast agents and antioxidants, or pigments. For example, lightfasteners, antioxidants, etc. also preferably include: BHT (2,6-di-tert-butyl-p-cresol, 2,6-di-tert-butyl-p-cresol) or Sumitomo Chemical Industry Co., Ltd. Hindered phenol-based chemical agents such as "Sumilizer" (registered trademark) GA-80 manufactured by the company, various benzotriazole and benzophenone-based chemical agents such as "Tinuvin" (registered trademark) manufactured by Ciba-Geigy, Sumitomo "Sumilizer" (registered trademark) P-16 and other phosphorus-based chemical agents manufactured by Chemical Industry Co., Ltd., various hindered amine-based chemical agents, various pigments such as iron oxide and titanium oxide, zinc oxide, cerium oxide, magnesium oxide, calcium carbonate , Carbon black and other inorganic materials, fluorine or silicone resin powder, metal soaps such as magnesium stearate, lubricants such as silicone and mineral oil, various antistatic agents such as cerium oxide, betaine or phosphoric acid, etc., In addition, it is also preferable to react these with the polymer. Moreover, in order to further improve the durability against light and various nitrogen oxides, for example, it is also preferable to use nitrogen oxide supplements such as HN-150 manufactured by Japan Hydrazine Co., Ltd., and "Sumilizer" manufactured by Sumitomo Chemical Co., Ltd. (Registered trademark) thermal oxidation stabilizer such as GA-80, light stabilizer such as "Sumisorb" (registered trademark) 300#622 manufactured by Sumitomo Chemical Industry Co., Ltd.

Next, the cationic dyeable polyester fiber used in the fabric of the present invention will be described.

Generally, cationic dyeable polyester fiber refers to a fiber obtained by copolymerizing a compound containing a metal sulfonate group into a polyester molecular structure, and the definition in the present invention is also the same. Regarding the cationic dyeable polyester fiber, various types of metal sulfonate group-containing compounds or copolymerization rates can be obtained in order to improve dyeability or texture, etc. However, the cationic dyeable polyester fiber used in the present invention Polyester fibers can be used without particular limitation as long as they exhibit dye adhesion to normal cationic dyes.

In order to exhibit deodorization in a well-balanced manner, the fabric of the present invention preferably has a cationic dyeable polyester fiber with a mixing rate of 40% by mass or more, and polyurethane elastic yarn has a mixing rate of 5% by mass or more and less than 30% by mass, and the mass of 10cm×10cm is 1g or more. When the above conditions are met, it can also be made into a knitted fabric that combines ordinary polyester fiber, polyamide fiber, cotton, etc. The knitted fabric is not particularly limited as long as it satisfies the above conditions, and any method such as circular knitting, warp knitting, Tricot warp knitting, Raschel warp knitting, and coating processing yarn can be used to form the knitted fabric.

In addition, the fabric of the present invention is preferably dyed by cationic dyes. In this case, there are various cationic dyes such as polymethine, azo, azamethine, anthraquinone, and thiazole dyes for dyeing, but they are not particularly limited and can be used normally. Under the conditions of use, usually commercially available dyes are used. In addition, cationic dyes contain counter ions, and in order to express the deodorizing properties of fabrics, carboxylic acid anions, sulfonic acid anions, sulfate anions, phosphate anions, etc. are preferred, and sulfonic acid anions are particularly preferred.

In addition, after dyeing processing, in order to improve texture or impart other functions, softening processing, antibacterial processing, water absorption processing, water repellent processing, antistatic processing, etc. may be appropriately performed.

The fabric of the present invention is preferably a knitted fabric. In order to exhibit deodorization in a well-balanced manner, it is preferable that the mixing ratio of cationic dyeable polyester fiber is 40% by mass or more, and the mixing ratio of polyurethane elastic yarn is 5% by mass or more and less than 30% by mass. And the mass of 10cm×10cm is 1 Knitted fabrics above g can be made into knitted fabrics in addition to polyurethane elastic yarn and cationic dyeable polyester fiber combined with ordinary polyester fibers, polyamide fibers, cotton, etc. . The knitted fabric is not particularly limited as long as it satisfies the above conditions, and any method such as circular knitting, warp knitting, Tricot warp knitting, Raschel warp knitting, and coating processing yarn can be used to form the knitted fabric.

Next, the polyurethane constituting the polyurethane elastic yarn used in the present invention will be described. (Hereinafter, the polyurethane constituting the polyurethane elastic yarn used in the present invention is simply referred to as the polyurethane used in the present invention)

The polyurethane used in the present invention may be anything as long as it uses polymer diol and diisocyanate as starting materials, and is not particularly limited. In addition, the synthesis method is not particularly limited. That is, for example, it may be a polyurethane urea containing polymer diol, diisocyanate and low molecular weight diamine, and it may also be a polyurethane urea containing polymer diol, diisocyanate and low molecular weight diol. Acid ester. In addition, it may also be a polyurethane urea used as a chain extender for a compound having a hydroxyl group and an amino group in the molecule. It is also preferable to use polyurethane obtained by using polyfunctional ethylene glycol or isocyanate with trifunctional or higher functionality in the present invention within a range that does not hinder the effects of the present invention.

The polymer diols are preferably polyether-based, polyester-based diols, polycarbonate diols, and the like. In addition, from the viewpoint of imparting softness and elongation to the yarn in particular, it is preferable to use a polyether glycol.

As the polyether glycol, for example, polyethylene oxide, polyethylene glycol, polyethylene glycol derivatives, polypropylene glycol, polytetramethylene ether glycol (hereinafter referred to as PTMG), and tetrahydrofuran can be preferably used. (Hereinafter referred to as THF) and a modified PTMG of a copolymer of 3-methyltetrahydrofuran (hereinafter referred to as 3M-PTMG), a modified PTMG as a copolymer of THF and 2,3-dimethyl THF, Japanese Patent No. 2615131 Publication No. 2615131 and other publications have branched polyols on both sides, random copolymers of THF and ethylene oxide and/or propylene oxide arranged irregularly. One kind of these polyether diols can be used, or two or more kinds can be mixed or copolymerized.

In addition, as the polyurethane elastic yarn, from the viewpoint of obtaining abrasion resistance or light resistance, butylene adipate, polycaprolactone diol, Japanese Patent Laid-open Sho Polyester diols such as branched polyester polyols disclosed in 61-26612, etc., or polycarbonate diols disclosed in Japanese Patent Laid-Open No. 2-289616, etc.

In addition, such polymer diols may be used alone, or two or more types may be mixed or copolymerized for use.

Regarding the molecular weight of the polymer diol, the number average molecular weight is preferably 1,000 or more and 8,000 or less, more preferably 1,500 or more and 6,000 from the viewpoint of obtaining elongation, strength, heat resistance, etc. when the yarn is made. By using a polyol with a number average molecular weight in this range, an elastic yarn with excellent elongation, strength, elastic recovery, and heat resistance can be easily obtained. In addition, the number average molecular weight was measured by GPC (Gel Permeation Chromatography), and converted by polystyrene (hereinafter, the same applies to other components and polymers).

Then, as diisocyanates, aromatic diisocyanates such as diphenylmethane diisocyanate (hereinafter referred to as MDI), toluene diisocyanate, 1,4-diisocyanate benzene, xylylene diisocyanate, 2,6-naphthalene diisocyanate, etc. It is especially suitable for synthesizing polyurethane with higher heat resistance or strength. Furthermore, as the alicyclic diisocyanate, for example, methylene bis(cyclohexyl isocyanate) (hereinafter referred to as H12MDI), isophorone diisocyanate, and methylcyclohexane 2,4-diisocyanate are preferred. , Methylcyclohexane 2,6-diisocyanate, cyclohexane 1,4-diisocyanate, hexahydroxylylene diisocyanate, hexahydrotoluene diisocyanate, octahydro 1,5-naphthalene diisocyanate, etc. Aliphatic diisocyanates can be effectively used especially when inhibiting yellowing of polyurethane elastic yarns. In addition, these diisocyanates may be used alone or in combination of two or more kinds.

Next, as for the chain extender used when synthesizing polyurethane, it is preferable to use at least one of low molecular weight diamine and low molecular weight diol having a molecular weight of 300 or less. Furthermore, it may also have a hydroxyl group and an amino group in the molecule like ethanolamine.

As preferred low molecular weight diamines, for example, ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, hexamethylenediamine, p-phenylenediamine, p-xylylenediamine, m- Xylylenediamine, p-,p-methylenediphenylamine, 1,3-cyclohexyldiamine, hexahydrom-phenylenediamine, 2-methylpentanediamine, bis(4-aminophenyl) ) Phosphine oxide, etc. It is preferable to use one or two or more of these. Particularly preferred is ethylene diamine. By using ethylenediamine, a yarn with excellent elongation, elastic recovery, and heat resistance can be easily obtained. It is also possible to add triamine compounds that can form a cross-linked structure in these chain extenders, such as diethylene triamine, to the extent that the effect is not lost.

In addition, as low molecular weight diols with a molecular weight of 300 or less, representative ones are ethylene glycol, 1,3-propanediol, 1,4-butanediol, bishydroxyethoxybenzene, and bishydroxyethylene terephthalate. Esters, 1-methyl-1,2-ethylene glycol, etc. It is preferable to use one or two or more of these. Especially preferred are ethylene glycol, 1,3-propanediol, and 1,4-butanediol. If these are used, as a glycol-extended polyurethane, a yarn with higher heat resistance and higher strength can be obtained.

In addition, from the viewpoint of obtaining fibers with high durability or strength, the molecular weight of the polyurethane used in the present invention is preferably in the range of 30,000 or more and 150,000 or less in terms of number average molecular weight.

In the polyurethane, it is also preferable to mix and use one or more end-capping agents. As the blocking agent, dimethylamine, diisopropylamine, ethylmethylamine, diethylamine, methylpropylamine, isopropylmethylamine, diisopropylamine, butylmethylamine are preferred Monoamines such as base amine, isobutyl methyl amine, isopentyl methyl amine, dibutyl amine, dipentyl amine, ethanol, propanol, butanol, isopropanol, allyl alcohol, cyclopentanol, and other monoamines, Monoisocyanates such as phenyl isocyanate.

Next, the manufacturing method of the polyurethane elastic yarn used in the present invention will be described below.

Regarding the polyurethane elastic yarn used in the present invention, the spinning dope containing polyurethane obtained by using polymer diol and diisocyanate as starting materials contains an inorganic deodorant ( Such as metal phosphates such as zirconium phosphate), and quaternary ammonium salts as needed Antibacterial agent, etc., for spinning. From the viewpoint of stabilizing the polymerization, it is preferable to prepare a polyurethane solution in advance and add an inorganic deodorant to it. In addition, the method for preparing polyurethane as a solute may be either a melt polymerization method or a solution polymerization method, or other methods. Among them, the solution polymerization method is more preferred. In the case of the solution polymerization method, the generation of foreign matter such as gel in the polyurethane is less, the spinning is easy, and the polyurethane elastic yarn with low fineness is easy to obtain. Moreover, in the case of solution polymerization, it also has the advantage that the operation of making the solution can be omitted.

In addition, as polyurethanes particularly preferably used in the present invention, PTMG having a number average molecular weight of 1500 or more and 6000 or less is used as the polymer diol, MDI is used as the diisocyanate, and ethylenediamine is used. , 1,2-propanediamine, 1,3-propanediamine, and hexamethylenediamine are synthesized as a chain extender.

The polyurethane used in the present invention is obtained, for example, by the following method: in N,N-dimethylacetamide (hereinafter referred to as DMAc), N,N-dimethylformamide (hereinafter (Abbreviated as DMF), dimethyl sulfoxide (hereinafter referred to as DMSO), N-methyl-2-pyrrolidone (hereinafter referred to as NMP), etc. or solvents with these as the main components, use the above raw materials for synthesis . For example, the following method can be used as a particularly preferred method: the so-called single trigger method in which each raw material is poured into such a solvent and dissolved, heated to an appropriate temperature to react to produce polyurethane; and, First, the polymer diol and the diisocyanate are melt-reacted, and then the reactant is dissolved in a solvent and reacted with the above-mentioned chain extender to prepare a polyurethane.

When a diol is used as a chain extender, it is preferable to adjust the melting point of the high temperature side of the polyurethane to the range of 200°C or more and 260°C or less from the viewpoint of obtaining excellent heat resistance. The representative method can be achieved by controlling the types and ratios of polymer diol, MDI, and diol. When the molecular weight of the polymer diol is low, by relatively increasing the ratio of MDI, a high-temperature polyurethane with a higher melting point can be obtained. Similarly, when the molecular weight of the diol is low, by Relatively reduce the proportion of polymer glycol, Polyurethane with higher melting point at high temperature can be obtained.

When the number average molecular weight of the polymer diol is 1800 or more, in order to make the melting point of the high temperature side 200°C or more, it is preferable to use (MDI mole number)/(Polymer diol mole number)= Polymerize at a ratio of 1.5 or more.

In the present invention, it is preferable to include an inorganic deodorant such as metal phosphate in the polyurethane solution. When adding an inorganic deodorant to a polyurethane solution, any method can be adopted. As its representative method, various methods such as a method using a static mixer, a method using a stirring, a method using a homomixer, a method using a twin-screw extruder, etc. can be used.

For the polyurethane used in the present invention, in order to improve the deodorization of ammonia gas, the polyurethane elastic yarn contains an inorganic deodorant in a specific range, but it is preferable to make an inorganic deodorant. The deodorant is uniformly dispersed in the polyurethane spinning dope before spinning, preferably in the polyurethane spinning dope with DMF, DMAc, etc. as a solvent, and the inorganic deodorant is added. The odorant is uniformly dispersed by stirring and mixing. Specifically, it is preferable to prepare the inorganic deodorant as a dispersion liquid dispersed in a solvent such as DMF and DMAc in advance, and to mix the dispersion liquid into the polyurethane spinning dope. Here, as for the dispersion medium used in the dispersion of the added inorganic deodorant, from the viewpoint of uniformly adding to the polyurethane solution, it is preferable to use the same as the polyurethane solution. The solvent. In addition, when adding an inorganic deodorant to the polyurethane solution, the above-mentioned chemical agents or pigments such as light fasting agents and antioxidants can also be added at the same time.

The polyurethane elastic yarn used in the present invention can be obtained by performing, for example, dry spinning, wet spinning, or melt spinning of the spinning dope constituted as described above and winding it up. Among them, dry spinning is preferred from the viewpoint that all deniers from fine to coarse can be spun stably.

The fineness and cross-sectional shape of the polyurethane elastic yarn used in the present invention are not particularly limited. For example, the cross-sectional shape of the yarn can be round or flat.

In addition, the dry spinning method is not particularly limited, as long as the spinning conditions are appropriately selected in accordance with the required characteristics or spinning equipment.

[Example]

The present invention will be explained in more detail using examples.

[cleaning method]

Implemented in accordance with the washing method guidelines formulated by the New Functional Evaluation Council of Fiber Products. That is, use the household electric washing machine specified in JIS L0217: 1995 Annex 1, Washing Method 103, and dissolve 40 ml of JAFET standard lotion (manufactured by the New Functional Evaluation Council of Textile Products) in 30 liters of 40 ℃ water to make the washing Solution, put 1 kg of the sample to be washed into the washing solution. Then, the steps of washing for 5 minutes, dehydrating, rinsing for 2 minutes, dehydrating, rinsing for 2 minutes, and dehydrating are carried out in sequence, and set it as one wash. 10 washings means repeating the series of operations 10 times, and washing 50 times means repeating the series of operations 50 times.

[Deodorization of Polyurethane Elastic Yarn]

The deodorization test is based on the certification standard for deodorization processed fiber products (Developer: Product Certification Department of the Fiber Evaluation Technology Council, date of establishment: September 1, 2002), and the machine test is carried out in the following manner for each odor Evaluation of deodorant properties of ingredients.

(Detection tube method)

1. Put the sample (0.15 g of polyurethane elastic yarn) into the sampling bag.

2. Inject a specific amount of test gas (ammonia: 100ppm, acetic acid: 30ppm), and measure the residual gas concentration (ppm) after 2 hours with a component corresponding detection tube (manufactured by GASTEC) as the residual gas concentration for the sample test. In addition, the gas filling amount was set to 3L, and the diluent gas system was set to dry air or nitrogen.

3. Perform the same evaluation without putting the sample in the sampling bag as the residual gas concentration of the blank test.

4. The evaluation system calculates the deodorization rate according to the following formula.

In addition, the measured value is calculated with the average value of n=3.

[Fabric deodorization]

As a sample, a fabric 10cm×10cm was used instead of 0.15g polyurethane elastic yarn. Except for this, the same method as the above-mentioned [Deodorization of Polyurethane Elastic Yarn] was performed to control odor components. Evaluation of the deodorization performance and calculate the deodorization rate.

Preferably, the deodorizing property of the fabric is that after 10 washings, the ammonia and acetic acid are both at least 70%, and more preferably after 50 washings, the ammonia and acetic acid are both at least 70%.

[Example 1]

A DMAc solution (35% by mass) of a polyurethane urea polymer containing PTMG with a number average molecular weight of 1800, MDI, ethylenediamine, and diethylamine as a capping agent was prepared. Then, as an antioxidant, the polycarbamic acid produced by the reaction of tert-butyldiethanolamine and methylene-bis-(4-cyclohexyl isocyanate) was 2 to 1 (mass ratio) Ester solution (“Methacrol” (registered trademark) 2462D manufactured by Dupont Company), mixed with p-cresol and divinylbenzene condensation polymer (“Methacrol” (registered trademark) 2390D manufactured by Dupont Company) to prepare DMAc as an antioxidant For the solution (concentration 35 mass%), 96 parts by mass of the DMAc solution of the polyurethane urea polymer and 4 parts by mass of the DMAc solution of the antioxidant were mixed to prepare a polymer solution A1. Then, using a homomixer, a zirconium phosphate-based deodorant "Kesumon" (registered trademark) NS-10 (average primary particle size 0.9μm) manufactured by Toagosei, which is an inorganic deodorant, was dispersed in DMAc to produce phosphoric acid Zirconium dispersion B1 (35 mass%). The polymer solution A1 and the zirconium phosphate dispersion B1 were uniformly mixed in a ratio of 98% by mass and 2% by mass to prepare a spinning solution C1. The speed ratio between the guide roll and the coiler was set to 1.3, and the spinning solution C1 was dry-spinned at a speed of 720m/min to obtain 22 decitex, 2 filaments, and zirconium phosphate The content is 2% by mass polyurethane elastic yarn of 200g winding body.

With respect to the obtained polyurethane elastic yarn, the deodorizing property to ammonia gas of 0.15 g was evaluated, and the results are shown in Table 1.

Then, the above-mentioned polyurethane elastic yarn and cationic dyeable polyester fiber (Type WFOF: manufactured by Toray (strand), 84 decitex 72 filaments) were used to make a circular knitted fabric as a fabric by a usual method.

Using the obtained circular knit fabric, dyeing was performed in the following manner to obtain a dyed knitted fabric with a polyurethane elastic yarn mixing ratio of 9% by mass and a mass of 10 cm×10 cm of 1.3 g.

(1) Refining treatment: A 2g/L aqueous solution of "Sunmorl" BL650 (nonionic surfactant manufactured by Nikka Chemical Co., Ltd.) was prepared and treated at 80°C for 20 minutes.

(2) Preset: 190℃×1 minute processing at a tentering rate of 30%.

(3) Dyeing: Using Kayacryl Black FB-ED (a cationic dye manufactured by Nippon Kayaku Co., Ltd.), dyeing with 8% owf at 125°C for 60 minutes. Here, the so-called %owf means the mass of the dye in the dyeing bath relative to the mass of the fiber expressed as a percentage.

The deodorant properties of the knitted fabric after the preset treatment in (2) and the dyed knitted fabric in (3) were measured respectively. The evaluation results are shown in Table 2.

[Comparative Example 1]

The polyurethane elastic yarn used in Example 1 was used, and ordinary polyester fiber (Tetoron, 84 decitex, 72 filaments manufactured by Toray (stock)) was used instead of cationic dyeable polyester fiber (Toray (stock) Tetoron, 84 decitex, 72 filaments), a circular knit fabric is made as a fabric, and dyed by the following method.

(1) Refining treatment: A 2g/L aqueous solution of "Sunmorl" BL650 (nonionic surfactant manufactured by Nikka Chemical Co., Ltd.) was prepared and treated at 80°C for 20 minutes.

(2) Preset: 190℃×1 minute processing at a tentering rate of 30%.

(3) Dyeing: using Dianix Tuxde Black F (trade name, disperse dye manufactured by DyStar Japan Co., Ltd.), dyeing with 10% owf at 125° C. for 60 minutes.

(4) Reduction cleaning: in a bath containing 3.0 g/liter of bisulfite, 1.5 g/liter of sodium hydroxide, and 1.5 g/liter of Bisnol US-10 (trade name, manufactured by Yifangsha Oil & Fat Co., Ltd.), The treatment was performed at 80°C for 20 minutes.

The deodorant properties of the knitted fabric after the preset treatment in (2) and the knitted fabric after the dyeing process in (4) are measured respectively.

Each evaluation result is shown in Table 1 and Table 2.

[Example 2]

Instead of the zirconium phosphate dispersion B1, use a homomixer to disperse the aluminum tripolyphosphate-based deodorant "K-FRESH" (registered trademark) #100P (average primary particle size 1.0μm) manufactured by Tayca Co., Ltd. In DMAc, aluminum dihydrogen tripolyphosphate dispersion B2 (35% by mass) was prepared.

The polymer solution A1 and the aluminum dihydrogen tripolyphosphate dispersion B2 were uniformly mixed in a ratio of 96% by mass and 4% by mass to prepare a spinning solution C2, which was dry-spinned in the same manner as in Example 1. , Obtained 22 decitex, 2 filaments, 4% by mass of aluminum dihydrogen tripolyphosphate, and 200 g of polyurethane elastic yarn. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, in the same manner as in Example 1, a circular knitted fabric and a knitted fabric dyed thereon were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Example 3]

Instead of zirconium phosphate dispersion B1, use a homomixer to disperse the inorganic deodorant "Shu-Cleanse" (registered trademark) KD-211 manufactured by Rasa Industrial Co., Ltd. in DMAc to prepare dispersion B3 (35% by mass) ).

The polymer solution A1 and the dispersion liquid B3 were uniformly mixed in a ratio of 96% by mass and 4% by mass to form a spinning solution C3, which was dry-spinned in the same manner as in Example 1 to obtain 22 decitex, 2 The content of filament and inorganic deodorant is 4% by mass of a 200g winding body of polyurethane elastic yarn. For the polyurethane elastic yarn obtained, the In the same manner as in Example 1, the deodorization performance of ammonia gas was evaluated. Then, in the same manner as in Example 1, a circular knit fabric and a knitted fabric dyed thereon were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Example 4]

The polymer solution A1 and the zirconium phosphate dispersion B1 were uniformly mixed at a ratio of 99% by mass and 1% by mass to prepare a spinning solution C4. It was dry-spinned in the same manner as in Example 1, to obtain 200 g of a polyurethane elastic yarn with a content of 22 decitex, 2 filaments, and 1% by mass of inorganic deodorant. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, in the same manner as in Example 1, a circular knitted fabric and a knitted fabric dyed thereon were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Example 5]

The speed ratio of the guide roll and the coiler was set to 1.21, and the spinning solution C1 was dry-spinned at a speed of 710m/min to obtain 44 decitex, 4 filaments, and an inorganic deodorant content of 2% by mass 350g roll body of polyurethane elastic yarn. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, use cationic dyeable polyester fiber (Type FS92: Toray (stock) manufacturing) (mixing rate 76%), using 44 decitex polyurethane elastic yarn (mixing rate 24%) on the back, by the usual method A two-way tricot is woven as the fabric. Using the obtained two-way warp knitted fabric, dyeing was performed in the following manner to obtain a dyed knitted fabric with a polyurethane elastic yarn mixing rate of 24% by mass and a mass of 10 cm×10 cm of 1.88 g.

(1) Refining treatment: As treatment water, it is prepared in soft water with a total hardness of 10 ppm and added with a non-ionic surfactant "Sunmorl" (registered trademark) BL650 (manufactured by Nikka Chemical Co., Ltd.) 2g/L, EDTA series metal ion seal Resistor "Acromer" (registered trademark) DH700 (Nagase Chemtex (manufactured by Chemtex) is a solution of 1500 ppm, and the treatment solution is used for treatment at 80°C for 20 minutes.

(2) Preset: 190℃×1 minute processing at a tentering rate of 30%.

(3) Dyeing treatment: using cationic dye "Kayacryl Black" (registered trademark) FB-ED (manufactured by Nippon Kayaku Co., Ltd.), dyeing at a concentration of 8% owf at 125°C for 60 minutes.

The deodorant properties of the knitted fabric after the preset treatment in (2) and the dyed knitted fabric in (3) were measured respectively.

Each evaluation result is shown in Table 1 and Table 2.

[Example 6]

The cationic dye used in Example 1 was changed to 1,3-dimethyl-1H-benzo(d)imidazole-2(3H)-one and 2-amino-3-methylbenzoxazole chloride Onium (1,3-Dimethyl-1H-benzo(d)imidazol-2(3H)-one and 2-Amino-3-methylbenzolium chloride), a dyed fabric was produced in the same manner as in Example 1.

Table 2 shows the results of each evaluation.

[Example 7]

The cationic dye used in Example 1 was changed to 1,3-dimethyl-1H-benzo(d)imidazole-2(3H)-one and 2-amino-3-methylbenzoxazolium dimethyl Dimethyl sulfate (1,3-Dimethyl-1H-benzo(d)imidazol-2(3H)-one and 2-Amino-3-methylbenzolium Dimethyl sulfate) was used to produce dyed fabrics in the same manner as in Example 1.

Table 2 shows the results of each evaluation.

[Example 8]

Instead of the cationic dyeable polyester fiber (Type WFOF: manufactured by Toray (stock), 84 decitex, 72 filaments) used in Example 1, the cationic dyeable polyester fiber and ordinary polyester fiber (Type W20F: Toray (stock) manufacturing, 84 decitex, 72 filaments) Except for the fibers having a ratio of 40:51, in the same manner as in Example 1, a knitted fabric obtained by dyeing a circular knit fabric was produced as a woven fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Example 9]

Instead of the cationic dyeable polyester fiber (Type WFOF: manufactured by Toray (stock), 84 decitex, 72 filaments) used in Example 1, the cationic dyeable polyester fiber and ordinary polyester fiber (Type W20F : Made by Toray (strand), 84 decitex, 72 filaments) is a fiber made with a ratio of 30:61. Except for this, the same method as Example 1 is used to produce and dye a circular knit fabric The woven fabric is used as a fabric, and these evaluations are performed.

Each evaluation result is shown in Table 1 and Table 2.

[Example 10]

Except for performing the same dyeing treatment as in Comparative Example 1, a circular knit fabric and a knitted fabric dyed thereon were produced as the same fabric as in Example 8, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Comparative Example 2]

The polymer solution A1 was dry-spinned in the same manner as in Example 1, to obtain a 200 g roll of 22 decitex, 2-filament polyurethane elastic yarn. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, in the same manner as in Example 1, a circular knitted fabric and a knitted fabric dyed thereon were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Comparative Example 3]

Uniform polymer solution A1 and dispersion liquid B3 in a ratio of 99.5% by mass to 0.5% by mass Ground mixing to make spinning solution C5. It was dry-spinned in the same manner as in Example 1 to obtain 200 g of polyurethane elastic yarn with a content of 22 decitex, 2 filaments, and an inorganic deodorant of 0.5% by mass. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, in the same manner as in Example 1, a circular knitted fabric and a knitted fabric dyed thereon were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Comparative Example 4]

The polymer solution A1 was dry-spinned in the same manner as in Example 5 to obtain a 350 g roll of 44 decitex, 4-filament polyurethane elastic yarn. With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, in the same manner as in Example 5, a two-way warp knitted fabric and a knitted fabric formed therefrom were produced as a fabric, and these evaluations were performed.

Each evaluation result is shown in Table 1 and Table 2.

[Comparative Example 5]

The spinning solution C3 was dry-spinned in the same manner as in Example 5 to obtain 350 g of polyurethane elastic yarn with a content of 44 decitex, 4 filaments, and inorganic deodorant of 4% by mass. . With respect to the obtained polyurethane elastic yarn, the evaluation of the deodorizing properties of ammonia gas was performed in the same manner as in Example 1. Then, ordinary polyester fiber (Type S962: Toray (strand) manufacturing) (mixing rate 76%) is used, 44 decitex polyurethane elastic yarn (mixing rate 24%) is used on the back side, and the two-way knitting method is used in the usual way Warp knitted fabric is used as fabric. Using the obtained two-way warp knitted fabric, dyeing was performed in the following manner to obtain a dyed knitted fabric with a polyurethane elastic yarn mixing ratio of 24% by mass and a mass of 10 cm×10 cm of 1.86 g.

(1) Refining treatment: As treatment water, it is prepared in soft water with a total hardness of 10 ppm and added with a non-ionic surfactant "Sunmorl" (registered trademark) BL650 (manufactured by Nikka Chemical Co., Ltd.) 2 g/L, EDTA-based metal ion blocking agent "Acromer" (registered trademark) DH700 (manufactured by Nagase chemtex Co., Ltd.) 1500ppm solution, using the treatment solution at 80°C for 20 minutes.

(2) Preset: 190℃×1 minute processing at a tentering rate of 30%.

(3) Dyeing: using Dianix Tuxde Black F (trade name, disperse dye manufactured by DyStar Japan Co., Ltd.), dyeing with 10% owf at 125° C. for 60 minutes.

(4) Reduction cleaning: in a bath containing 3.0g/liter of bisulfite, 1.5g/liter of sodium hydroxide, and 1.5g/liter of Bisnol US-10 (trade name, manufactured by Yifangsha Oil Industry Co., Ltd.), The treatment was performed at 80°C for 20 minutes.

Evaluate the deodorant properties of the knitted fabric after the preset treatment in (2) and the knitted fabric after the dyeing process in (4).

Each evaluation result is shown in Table 1 and Table 2.

[Comparative Example 6]

Except that the inorganic deodorant used in Comparative Example 3 was changed to 0.3% by mass, in the same manner as in Comparative Example 3, a circular knit fabric and a knitted fabric dyed thereon were produced as a fabric, and the And other evaluations.

Each evaluation result is shown in Table 1 and Table 2.

Claims (3)

A fabric comprising polyurethane elastic yarn and cationic dyeable polyester fiber, and having a mass of 10cm×10cm of 1g or more; and regarding the polyurethane elastic yarn, it is based on fiber evaluation technology The deodorizing rate of ammonia gas obtained by measuring 0.15g of the polyurethane elastic yarn by the detection tube method stipulated by the council is more than 40% after 0 times and 10 times of washing treatment. The blending rate of the formate elastic yarn in the fabric is 5 mass% or more and 30 mass% or less, and the polyurethane elastic yarn contains an inorganic deodorant in the range of 0.5 mass% or more and 10 mass% or less, and The inorganic deodorant is a metal phosphate, and the metal phosphate is one that does not support metal ions. The fabric of claim 1, wherein the mixing rate in the fabric of the cationic dyeable polyester fiber is 40% by mass or more. Such as the fabric of claim 1 or 2, which is dyed with cationic dyes.