JP2011140739A - Method for treating cotton cloth by which water diffusion promoting ability is imparted to cotton cloth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for treating a cotton cloth by which an evaporation property of water is enhanced, and an unpleasant feeling such as stickiness with sweat or a cold feeling after sweating can be improved and a water diffusion promoting ability is imparted to the cotton cloth in direct contact with skin, and to provide a water diffusion promoter imparting the water diffusion promoting ability to the cotton cloth in direct contact with the skin. <P>SOLUTION: There is provided [1] the method for treating the cotton cloth including applying a compound (A) represented by general formula (1): R<SP>1</SP>-O-[(C<SB>3</SB>H<SB>6</SB>O)<SB>m</SB>-(C<SB>2</SB>H<SB>4</SB>O)<SB>n</SB>]-H äwherein, R<SP>1</SP>represents 6-20C hydrocarbon; m and n represent each an average addition molar number; m is 1-20; and [n/m] ratio is (0/1) to (1/9)} to the cotton cloth in direct contact with the skin; and imparting the water diffusion promoting ability to the cotton cloth. Furthermore, there is provided [2] the water diffusion promoter containing the compound (A) represented by general formula (1) and a surfactant (B) äexcept the compound (A)} emulsifying, dispersing or solubilizing the compound (A) and/or an organic solvent (C), and imparting the water diffusion promoting ability to the cotton cloth in direct contact with the skin. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a method for treating cotton cloth that imparts water diffusion promoting ability to a cotton cloth that is in direct contact with the skin, and a water diffusion accelerator.

Cotton cloth is widely used in underwear and T-shirts and other clothing that directly touch the skin because it absorbs moisture quickly. There is a disadvantage that uncomfortable feeling such as that occurs and it lasts for a long time.
Therefore, conventionally, a cool-sensitive cloth and the like that have improved the cool-feel when wearing clothes have been proposed.
For example, a cloth (refer to Patent Document 1) formed with hydrophilic fibers such as cotton and rayon and hydrophobic fibers such as polyester and controlling the average deviation of the cloth surface roughness, the surface is composed of hydrophobic fibers, Cloth for clothing having a multilayer structure in which part of the back surface and / or intermediate layer is composed of cellulose multifilament (see Patent Document 2), porous inorganic powder particles containing a water-absorbing polymer, natural fibers such as cotton, and synthetic fibers A fiber product (see Patent Document 3) obtained by gripping a fiber such as a fiber is known.
However, since these fiber treatment techniques are applied at the time of manufacturing a cloth or a textile product and cannot be post-processed into the cloth or the textile product, they cannot be applied to cotton clothing usually worn in general households.

  On the other hand, in Patent Document 4 (wrinkle removing composition) and Patent Document 5 (wrinkle removing deodorant composition), a compound having a polyethylene oxide group and a polypropylene oxide group in the molecule, an average for enhancing the wrinkle removing effect The addition of a primary or secondary alcohol having a molecular weight of 100 to 300 is described. These wrinkle-removing compositions are supposed to be used in general households after wearing to remove wrinkles caused by wearing against dry-cleaning clothing such as suits sewn with woolen fabric, which is difficult to wash at home. Has been.

JP-A-4-370251 Japanese Patent Laid-Open No. 10-25643 JP 2002-235278 A JP 2006-104648 A JP 2007-239117 A

Cotton cloth is suitable as an underwear material because it is excellent in water absorption and moisture absorption, and is comfortable to wear. However, since cotton fiber has the property of absorbing moisture to the inside of the fiber, it is made of cotton fiber. For example, only the sweated part is locally in a state of high water content, and the cloth has a problem that the discomfort such as a sticky feeling is sustained and the body temperature is taken away in a cold environment.
The present invention improves the transpiration of moisture while taking advantage of the inherent characteristics of cotton cloth, and improves the feeling of stickiness caused by sweat and the feeling of coldness after sweating. The present invention relates to a method for treating cotton cloth that imparts diffusion promoting ability, and a water diffusion promoting agent that can impart water diffusion promoting ability to cotton cloth that directly contacts the skin.

The present inventors improve the water diffusibility of cotton fabric by attaching a compound having a specific long-chain hydrocarbon group and a specific oxyalkanediyl group to the cotton fabric that directly touches the skin, and solve the above problems. I found out that I can do it.
That is, the present invention relates to the following [1] and [2].
[1] A method for treating cotton cloth, wherein the compound (A) represented by the following general formula (1) is adhered to a cotton cloth that is in direct contact with the skin to impart water diffusion promoting ability to the cotton cloth.
_{^{R 1 -O - [(C 3}} H 6 O) m - (C 2 H 4 O) n] -H (1)
[Wherein R ¹ represents a hydrocarbon group having 6 to 20 carbon atoms, m and n represent the average number of added moles, m is 1 to 20, and the [n / m] ratio is 0/1 to 1/9. It is. ]
[2] The compound (A) represented by the general formula (1), the surfactant (B) capable of emulsifying, dispersing or solubilizing the compound (A) (excluding the compound (A)) and A water diffusion accelerator that can impart water diffusion promoting ability to a cotton cloth that is in direct contact with the skin, and / or contains an organic solvent (C).

  According to the present invention, a cotton cloth that directly touches the skin, which improves the transpiration of moisture while improving the inherent characteristics of the cotton cloth and can improve the feeling of stickiness due to sweat and the feeling of coldness after sweating. It is possible to provide a method for treating cotton cloth that imparts water diffusion promoting ability to water and a water diffusion promoting agent that can impart water diffusion promoting ability to cotton cloth that directly contacts the skin.

<Method for treating cotton cloth that imparts water diffusion promoting ability to cotton cloth>
The processing method of the cotton cloth which provides the water-diffusion acceleration | stimulation ability to the cotton cloth of this invention attaches the compound (A) represented by the said General formula (1) to the cotton cloth which touches skin directly. .
Here, “cotton cloth” is a general term for textile products such as fabrics and woven fabrics that use a plurality (such as warp and weft) of cotton threads as a raw thread. Cotton threads are gathered by twisting cotton fibers, etc. Formed. Further, the cotton cloth may be partially blended with not only cotton fibers but also chemical fibers, but in order to enjoy the effects of the present application, the blend ratio of the cotton fibers is preferably 50% by mass or more. The content is more preferably at least mass%, and most preferably 100 mass%.
"Cotton cloth that comes into direct contact with the skin" is used for directly touching the skin of cotton cloth, such as underwear, T-shirts, jeans, etc., as well as towels or handkerchiefs for direct wear on the skin. Means cotton cloth.
“Water diffusion” means a phenomenon in which water in contact with a cotton cloth moves far from the contact portion within a certain period of time, and apparently the water spreads on the surface of the cotton cloth.
“Water diffusion promoting ability” means the ability of water in contact with cotton cloth to move from the contacted part for a certain period of time, and “giving water diffusion promoting ability” means the water This means extending the travel distance.
As a method for evaluating the water diffusion accelerating ability, a method of measuring an area where water has spread on a cotton cloth for a certain period of time is simple, and can be specifically evaluated by the method described in the examples.

In the present invention, the reason why the compound (A) can impart water diffusion promoting ability to cotton fabric is not necessarily clear, but is considered as follows.
When the cotton cloth comes into contact with water, the water (i) penetrates into the cotton fibers forming the cotton cloth, and (ii) moves into the gap between the cotton threads constituting the cotton cloth, and the cotton thread. It is considered that there are two types of movements: movement into the gap between the cotton fibers forming the.
Here, since the compound (A) in the water diffusion accelerator of the present invention moderately or partially hydrophobizes the inside of the cotton fiber while appropriately maintaining the hydrophilicity of the surface of the cotton fiber, It is considered that water can be easily transferred to the gap between the cotton yarns and the gap between the cotton fibers by suppressing the penetration of water into the inside, that is, the water is more easily spread on the cotton cloth surface. It is done. As a result, the cotton fabric treated with the compound (A) evaporates moisture over a larger area than the untreated cotton fabric, and the water absorption, hygroscopicity, and comfort of the cotton fabric are inherent. The characteristics such as goodness are not impaired, and the feeling of stickiness due to sweat and the feeling of cooling after sweating can be greatly improved.
Conventional methods such as Patent Documents 1 to 3 make the entire fiber forming the fabric hydrophobic or hydrophilic, whereas the treatment method for imparting water diffusion promoting ability of the present invention is made of cotton fiber. By making the inside hydrophobic, the diffusion movement of water on the cotton cloth surface is promoted, and this is based on a novel idea completely different from the conventional method.

[Compound (A) Represented by General Formula (1)]
The compound (A) used in the present invention is represented by the following general formula (1).
_{^{R 1 -O - [(C 3}} H 6 O) m - (C 2 H 4 O) n] -H (1)
[Wherein R ¹ represents a hydrocarbon group having 6 to 20 carbon atoms, m and n represent the average number of added moles, m is 1 to 20, and the [n / m] ratio is 0/1 to 1/9. It is. ]

In the general formula (1), preferred examples of the hydrocarbon group represented by R ¹ include various hexyl groups, various heptyl groups, various octyl groups, various nonyl groups, various decyl groups, various dodecyl groups, various tetradecyl groups, various cetyl groups. And straight-chain or branched alkyl groups having 6 to 20 carbon atoms such as a group and various octadecyl groups. Among these, from the viewpoint of appropriately hydrophobizing the inside of the cotton fiber, the hydrocarbon group as R ¹ is preferably 7 to 20 carbon atoms, more preferably 8 to 18 carbon atoms, and more preferably 8 carbon atoms. -16, More preferably, it is a C8-C14, More preferably, it is 8-12, More preferably, it is a linear or branched alkyl group of 8-10.
The average added mole number m is preferably 1 to 18, more preferably 1 to 12, more preferably 2 to 10, more preferably 2 to 8, more preferably 2.5 from the viewpoint of imparting water diffusion promoting ability. -8, more preferably 2.7-7.
The [n / m] ratio is 0/1 to 1/9, preferably 0/1 to 1/15, and more preferably 0/1 to 1/20. That is, in the general formula (1), it is preferable that a small amount of ethylene oxide and a high content of propylene oxide are included so as not to inhibit the function of imparting water diffusion promoting ability. Most preferably, n is 0.

In the compound (A) represented by the general formula (1), the bonding method between (C ₃ H ₆ O) and (C ₂ H ₄ O) is not limited and may be random addition or block addition, but preferably Block addition.
The compound (A) represented by the general formula (1) can be obtained by adding propylene oxide and / or ethylene oxide to an alcohol having a hydrocarbon group of R ¹ by a known method. The average number of moles of (C ₃ H ₆ O) and (C ₂ H ₄ O) added can be measured by a known method such as NMR.
As a more preferred compound, a compound in which R ¹ is a linear alkyl group having 8 to 10 carbon atoms in the general formula (1), m is 2 to 12, particularly m is 2 to 7, and n is 0, Or, R ¹ is a branched alkyl group having 8 to 14 carbon atoms, m is 1 to 12, particularly m is 1 to 8, and n is 0. Particularly preferred compounds are those in which R ¹ is a 1-octyl group in the general formula (1), m is 2 to 7, particularly m is 2.1 to 7, and n is 0, or R ¹ is 2 -Ethylhexyl group, m is a compound of 2-5. The most preferred compound is a compound in which R ¹ is a 1-octyl group in the general formula (1), m is 2.7 to 3, and n is 0, or R ¹ is a 2-ethylhexyl group, m Is a compound in which n is 2 to 2.7 and n is 0.

[Method of treating cotton cloth that imparts water diffusion promoting ability]
As a method for treating cotton cloth that imparts water diffusion promoting ability to cotton cloth, 0.1 to 50% by mass of the compound (A) represented by the general formula (1) is attached to the cotton cloth before wearing. The method of making it preferable is.
Here, “before wearing” means from the time of washing with a detergent composition containing a washing component until just before wearing.
“Wearing” generally means the act of wearing clothes such as underwear and T-shirts, but in this specification, in addition to this, it is applied to the skin after face washing, after bathing, or when sweating. It also includes the act of bringing a cotton cloth such as a towel or handkerchief into contact with the skin in order to wipe off the adhering moisture.

Specifically, in any one of the steps 1 to 5 shown below, it is preferable to treat the cotton cloth by the methods (i) and (ii) below.
Process 1 (cleaning process): The process of wash | cleaning the cotton cloth after wearing using the washing | cleaning liquid containing a washing | cleaning component.
Step 2 (Rinsing Step): A step of reducing the amount of the cleaning liquid adhering to the cotton cloth after Step 1.
For example, in a washing process using a washing machine, after the washing process, new water not containing a washing component is supplied to the cotton cloth to reduce the amount of washing liquid adhering to the cotton cloth. However, in order to rinse efficiently, a process (dehydration process) of reducing the amount of the cleaning liquid adhered to the cotton cloth by a centrifugal operation or the like after the cleaning process is included.
Step 3 (Step of removing water from cotton cloth): A step of reducing the amount of water adhering to the cotton cloth after Step 1 or Step 2.
For example, a process of reducing water adhering to cotton cloth by centrifugal operation with a washing machine.
Step 4 (Drying Step): A step of drying the cotton cloth after any of the steps 1 to 3.
For example, a process of natural drying at ambient temperature, or a process of drying with a dryer or the like.
Step 5 (storage step): Steps from after step 4 to immediately before wearing.
In order to efficiently adsorb the compound (A) onto a cotton cloth, the compound (A) or the water diffusion accelerator containing the compound (A) is added to the cotton in any of the steps 2 to 5. It is preferable to adhere to a cloth.

(I) A method of treating cotton cloth (textile product) in a liquid bath.
When this method is carried out at home, the following methods (a) and (b) are common.
(A) A method of immersing a cotton cloth (textile product) after adding a water diffusion accelerator containing the compound (A) or the compound (A) in a water bath using a basin or the like, or A method of adding the compound (A) or a water diffusion accelerator containing the compound (A) to a water bath in which a cotton fabric (textile product) is immersed.
(B) A method of adding and treating the compound (A) or a water diffusion accelerator containing the compound (A) in a washing machine water bath, or a water diffusion accelerator containing the compound (A) A method of immersing cotton cloth (textile products) directly in a washing machine water bath.
When processing cotton cloth (fiber product) in a liquid bath, stirring or mixing operation can be appropriately performed so that the compound (A) uniformly adheres to the cotton cloth (fiber product). The cotton fabric (textile product) to which a predetermined amount of the compound (A) is adhered is used after drying.
When using a washing machine, a method of using a drum-type washing machine called a water-saving type that can reduce the amount of water used compared to a conventional fully automatic washing machine is simple. When using a washing machine, it can be used in the rinsing step after washing with the detergent composition.
At this time, from the viewpoint of efficiently attaching the compound (A) to cotton cloth (textile product), the bath ratio (mass ratio of liquid bath / mass ratio of textile product) is preferably 0.8 to 15, 13 is more preferable.

(Ii) A method of attaching to a cotton cloth (textile product) using a sprayer.
When implementing this method, a commercially available spray vial, a trigger type sprayer, etc. can be used. The atomizer to be used is preferably capable of ejecting the liquid preferably at a stroke of 0.1 to 3.0 g, more preferably 0.2 to 3.0 g, and still more preferably 0.3 to 2.0 g. As the trigger type sprayer, a pressure accumulation type as disclosed in Japanese Utility Model Laid-Open No. 4-37554 is preferable from the viewpoint of spray uniformity.
According to the above methods (i) and (ii), etc., the compound (A) is treated so as to adhere in an amount of 0.1 to 50% by mass per mass of the cotton fabric (textile product), preferably 0.6 to It is suitable to treat so as to adhere 40% by mass, more preferably 1 to 30% by mass.

<Water diffusion accelerator capable of imparting water diffusion promoting ability to cotton fabric>
The compound (A) itself has a property that it is difficult to emulsify, disperse or solubilize in water. In order to enhance the effect of the compound (A), it is preferable to uniformly treat the compound (A) on a cotton cloth. Therefore, it is preferable to use a surfactant (B) and / or an organic solvent (C) that can emulsify, disperse or solubilize the compound (A) in the water diffusion accelerator.
That is, the water diffusion accelerator capable of imparting water diffusion promoting ability to the cotton fabric in direct contact with the skin of the present invention emulsifies and disperses the compound (A) represented by the general formula (1) and the compound (A). Or a solubilizable surfactant (B) and / or an organic solvent (C).
Here, “a water diffusion accelerator capable of imparting water diffusion promoting ability to cotton cloth” refers to the water of cotton cloth not treated with the compound (A) in “Evaluation of water diffusion promoting ability” described in the Examples. When the diffusion area is 100 (see Comparative Example 11 below), it means a water diffusion accelerator that can make the relative value of the diffusion area 105 or more. A preferable relative value of the diffusion area is 110 or more, more preferably 115 or more, and most preferably 120 or more.

<Surfactant (B)>
Surfactant (B) can be selected from, for example, compound types described in “Introduction to Surfactant” (issued by Sanyo Kasei Kogyo Co., Ltd., first printing: June 11, 2007). However, the same compound as the compound (A) is excluded.
The surfactant (B) is at least one selected from anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants excluding compound (A). A cationic surfactant and a nonionic surfactant excluding the compound (A) are preferable, and a nonionic surfactant excluding the compound (A) is more preferable.

(Anionic surfactant)
Examples of the anionic surfactant include (i) alkylbenzene sulfonate, (ii) alkyl sulfate, (iii) polyoxyalkylene alkyl ether sulfate, (iv) α-olefin sulfonate, (v) α -Sulfo fatty acid alkyl ester salts, (vi) fatty acid salts and the like.
In the above description, the term “alkyl” is used. However, this “alkyl” is used for convenience, and means not only an alkyl group but also a “hydrocarbon group” in a broad sense. The carbon number is preferably 8 to 18, more preferably 10 to 16. The same applies to the following description of the anionic surfactants (i) to (vi).
(I) Examples of the alkyl benzene sulfonate include those having an average carbon number of 8 to 16 or the like of an alkyl chain generally distributed in the detergent surfactant market. Alkyl benzene sulfonates having groups are more preferred. For example, trade name: Neoperex F25 manufactured by Kao Corporation, trade name: Dobs102 manufactured by Shell, and the like can be given.
(Ii) The alkyl sulfate salt is preferably a sulfate ester salt having a hydrocarbon group having 10 to 16 carbon atoms, preferably 10 to 14 carbon atoms, and particularly 12 carbon atoms.
(Iii) The polyoxyalkylene alkyl ether sulfate ester salt is preferably a sulfate ester salt having an average of 0.5 to 10 moles of a hydrocarbon group having 10 to 18 carbon atoms and an ethylene oxide group in the molecule. The hydrocarbon group preferably has an average carbon number of 10 to 16, preferably 10 to 14, particularly preferably 12 and preferably has an average of 0.5 to 6 moles of ethylene oxide groups in the molecule.
(Iv) The α-olefin sulfonate can be obtained by sulfonating an α-alkene having 8 to 18 carbon atoms with SO ₃ and hydrating / neutralizing. As the α-olefin sulfonate, a mixture of a compound having a hydroxy group in a hydrocarbon group and a compound having an unsaturated bond is preferable.
(V) The α-sulfo fatty acid lower alkyl ester salt is preferably a hydrocarbon group having 10 to 16 carbon atoms, more preferably a methyl ester or an ethyl ester.
(Vi) The fatty acid salt is preferably a fatty acid salt having 12 to 16 carbon atoms, and examples of the salt include alkali metal salts, alkaline earth metal salts, alkanolamine salts, ammonium salts and the like. Among these, sodium salts, potassium salts, magnesium salts, calcium salts, alkanolamine salts, and ammonium salts are preferable.
Among the above anionic surfactants, from the viewpoint of dissolving or dispersing the compound (A), (i) alkylbenzene sulfonate, (ii) alkyl sulfate, (iii) polyoxyalkylene alkyl ether sulfate More preferred are salts and (vi) fatty acid salts.

(Cationic surfactant)
Examples of the cationic surfactant include primary to tertiary amine salt type surfactants and quaternary ammonium salt type surfactants.
More specifically, a cationic surfactant or the like having 1 to 3 hydrocarbon groups having 10 to 20 carbon atoms which may be separated by an ester group or an amide group in the molecule. In these, the quaternary ammonium salt or amine salt which has 1-2 hydrocarbon groups, such as a C10-C18 alkyl group, in a molecule | numerator is preferable. The counter ion of the quaternary ammonium salt is preferably a halogen ion or an alkyl sulfate ion having 1 to 2 carbon atoms, more preferably a chlorine ion, a methyl sulfate ion, or an ethyl sulfate ion. The amine salt can be obtained by neutralizing the amine compound with an inorganic acid or an organic acid.
(Amphoteric surfactant)
The amphoteric surfactant is preferably an amino acid type amphoteric surfactant or a carbobetaine type or sulfobetaine type amphoteric surfactant having a hydrocarbon group such as an alkyl group having 10 to 18 carbon atoms.

(Nonionic surfactant)
Examples of the nonionic surfactant include nonionic surfactants having a hydrocarbon group such as an alkyl group having 8 to 20 carbon atoms and excluding the compound (A).
Preferable examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyalkanediylalkylamine, polyoxyethylene sorbitan fatty acid ester and the like. Among these, one having an alkyl group having 8 to 14 carbon atoms, preferably 10 to 14 carbon atoms, especially 12 carbon atoms in the molecule, and having 6 to 20 carbon atoms, preferably 8 to 12 carbon atoms. More preferred is a polyoxyethylene alkyl ether containing an oxyethylene group in the molecule in an average of 10 to 60 mol, preferably 12 to 30 mol.

[Organic solvent (C)]
The organic solvent (C) means a water-soluble organic solvent having a dissolution amount in 100 g of water of 50 g or more at 25 ° C., and the dissolution amount is preferably 60 g or more, and the saturated vapor pressure (20 ° C.) is It is preferable that it is 0.001-1 kPa.
Specific examples of the water-soluble organic solvent are preferably monohydric alcohols having 1 to 8 carbon atoms, more preferably 2 to 6 carbon atoms such as methanol, ethanol, propanol, butanol and hexanol; ethylene glycol, propylene glycol, diethylene glycol , Dipropylene glycol, triethylene glycol, tripropylene glycol, tetraethylene glycol, 1,2-hexanediol, 1,6-hexanediol, 1,2,6-hexanetriol, glycerin, trimethylolpropane, etc., preferably carbon Examples thereof include polyhydric alcohols having 2 to 10, more preferably 2 to 6 carbon atoms.
Among these, from the viewpoint of dissolving or dispersing the compound (A), monohydric to tetrahydric alcohols having 2 to 5 carbon atoms are preferable, and monohydric alcohols having 2 to 4 carbon atoms such as ethanol, isopropanol, butanol and the like. More preferred are ethanol and isopropanol from the viewpoint of odor.

[Combination ratio of each component]
The water diffusion accelerator of the present invention is a composition containing the compound (A), surfactant (B) and / or organic solvent (C) and capable of imparting water diffusion promoting ability to cotton fabric.
The content of the compound (A) is preferably 0.1 to 40% by mass, more preferably 0.2 to 20% by mass, and particularly preferably 0 in the water diffusion accelerator composition from the viewpoint of water diffusion promoting ability. 0.5 to 15% by mass.
The content of the surfactant (B) and / or the organic solvent (C) has an effect of imparting water diffusion promoting ability to the cotton cloth, and the compound (A) is emulsified and dispersed in the water diffusion accelerator. Or what is necessary is just the quantity which can be solubilized. Usually, content of surfactant (B) becomes like this. Preferably it is 0.01-25 mass%, More preferably, it is 0.02-10 mass%, More preferably, it is 0.03-5 mass%, More preferably, it is 0.00. It is 04-0.2 mass%.
Content of an organic solvent (C) becomes like this. Preferably it is 0.1-70 mass%, More preferably, it is 1-60 mass%, More preferably, it is 1-40 mass%.
The surfactant (B) enhances the action and effect of the compound (A), and the compound (A) and the surfactant are treated from the point that the compound (A) represented by the general formula (1) is uniformly treated on cotton fabric. The mass ratio [compound (A) / surfactant (B)] to the agent (B) is more than 1, preferably 100 or less, more preferably 1.1 to 90, and more preferably 5 to 80. More preferably, it is more preferably 10-50.
In the water diffusion accelerator of this invention, it is preferable to contain water as a dispersion medium of the said compound (A) and a dispersing agent (B), The pH of the composition in that case becomes like this. Preferably it is 3-8, More preferably, it is 4-7.5.

In the following examples, “%” is “% by mass” unless otherwise specified. Moreover, all the pressures at the time of measurement are 101 kPa (atmospheric pressure).
As shown in Table 1, component (A) and component (A ′) [comparative compound of component (A)] used in Examples and Comparative Examples were prepared.

Moreover, the following were prepared as (B) component.
(B-1): Sodium dodecyl sulfate (anionic surfactant)
(B-2): N-dodecanoylaminopropyl-N, N, N-trimethylammonium chloride (cationic surfactant)
(B-3): N-lauryl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium betaine (amphoteric surfactant)
(B-4): Nonionic surfactant having an average of 6 moles of oxyalkanediyl groups added to lauryl alcohol (b-5): Nonionic surfactant having an average of 20 moles of oxyalkanediyl groups added to lauryl alcohol As the component (C), the following were prepared.
(C-1): ethanol (c-2): 2-propanol

Examples 1-35 and Comparative Examples 1-15 (Preparation of water diffusion accelerator)
Each component shown in Table 2 or Table 3 is blended in a 250 mL PYREX (registered trademark) medium bottle (available from As One Co., Ltd.) that can be sealed so that the mass of the final product is 200 g. , One thickness diameter 8 mm × length 25 mm) and sealed.
The medium bottle was placed in a water bath adjusted to 50 ° C. and left for 20 minutes. Next, the amount of warm water in the water bath was adjusted to the liquid level of the composition contained in the medium bottle, and stirred for 30 minutes at 300 rpm using a magnetic stirrer. Then, it put in the water bath adjusted to 20 degreeC, and also stirred for 30 minutes, and obtained the water-diffusion promoter.
A cotton cloth test piece was prepared and evaluated for the obtained water diffusion accelerator by the following method. The results are shown in Tables 2-4.

<Preparation of test piece by processing cotton fabric>
Using cotton knitted fabric (manufactured by Tanigami Shoten Co., Ltd., dyeing test material, cotton knit sill) as a cotton fabric that directly touches the skin such as underwear, a commercially available detergent for clothing (Kao Co., Ltd., Attack Micro Particles) is used. Washed with a washing machine (Panasonic, fully automatic washing machine NA-F702P, detergent 34.3 g, water volume setting 47 L (water temperature 20 ° C.), washing 9 minutes, rinsing twice, dehydration 3 minutes). This washing operation was repeated 5 times, and then allowed to stand for 24 hours in an environment of 25 ° C. and 40% RH to be dried. A test piece obtained by cutting this cotton cloth into 5 cm × 5 cm (area (V)) is weighed (mass (W ¹ )), put into a glass petri dish having a diameter of 8 cm, and a predetermined amount of adhesion is applied to the test piece. Soaked with the composition described in Table 2 or Table 3 containing the component (A). The bath ratio (mass of cotton cloth / mass of composition) was 5, and all the amount of the composition adhered to the cotton cloth. The sample was allowed to stand for 24 hours in an environment of 25 ° C. and 40% RH and dried to prepare a cotton cloth test piece.
The adhesion amount of the component (A) to the cotton cloth was calculated from the following formula.
Adhesion amount (mass%) of component (A) to the test piece = [(W ² ) − (W ¹ )] × (X) / (W ¹ )
W ¹ (g): Mass of the test piece before treatment W ² (g): Mass of the test piece immersed in the composition described in Table 2 or Table X (mass%): described in Table 2 or Table 3 Content of component (A) in the composition

<Evaluation of water diffusion promoting ability>
Edible blue No. 1 aqueous solution (0.001% by mass, water uses ion-exchanged water) 0.1 mL was dropped on the center of a glass petri dish having a diameter of 8 cm using a Pipetteman P-1000 manufactured by Gilson (diameter 5 ± 1 mm). ). The cotton fabric test piece prepared as described above was placed so that the colored aqueous solution on the petri dish was in contact with the central portion of the test piece, and left for 24 hours. Using the test piece after standing, the water diffusion area of the colored portion was calculated from the following formula.
Diffusion area (cm ² ) = (V) × (W) / (Z)
V: Total area of the test piece (25 cm ² )
W: The mass (g) of the entire test piece obtained in the above-mentioned “Preparation of test piece by treatment of cotton cloth”.
Z: Mass (g) of the colored portion cut from the test piece
The relative value was calculated by setting the water diffusion area of cotton underwear not treated with the water diffusion accelerator of the present invention to 100 (Comparative Example 11).
If the relative value of the diffusion area is 105 or more, the water diffusion promoting ability of the present invention can be realized.

  From Tables 2 to 4, it can be seen that the water diffusion accelerators of the examples are superior in the water diffusion promotion effect as compared with the water diffusion accelerators of the comparative examples. Moreover, although the compound (1'-5) (Comparative compound (A ') component of (A) component) of Table 1 is a compound of patent document 4 and 5, the comparative example using these compounds No. 5 (Table 2) and Comparative Example 12 (Table 3) do not have the effect of the present invention.

  According to the method for treating cotton cloth of the present invention, while taking advantage of the original characteristics of cotton cloth, the transpiration of moisture is enhanced, and the feeling of stickiness due to sweat or the feeling of coldness after sweating is improved. Can do. In addition, the water diffusion accelerator of the present invention can be suitably used as a domestic water diffusion accelerator that imparts water diffusion acceleration ability to cotton fabric that is in direct contact with the skin.

Claims (9)

A method for treating cotton cloth, comprising attaching a compound (A) represented by the following general formula (1) to a cotton cloth that is in direct contact with the skin and imparting water diffusion promoting ability to the cotton cloth.
_{^{R 1 -O - [(C 3}} H 6 O) m - (C 2 H 4 O) n] -H (1)
[Wherein R ¹ represents a hydrocarbon group having 6 to 20 carbon atoms, m and n represent the average number of added moles, m is 1 to 20, and the [n / m] ratio is 0/1 to 1/9. It is. ] The processing method of the cotton cloth which provides water diffusion promotion ability to the cotton cloth of Claim ¹ whose R < ¹ > is a C7-20 alkyl group in General formula (1).   The processing method of the cotton fabric which provides water-diffusion acceleration | stimulation capability to the cotton fabric of Claim 1 or 2 whose m is 2-7 and n is 0 in General formula (1).   The processing method of the cotton cloth which provides water diffusion promotion ability to the cotton cloth in any one of Claims 1-3 whose cotton cloth is the cotton cloth before wear.   The cotton cloth which gives water diffusion promotion ability to the cotton cloth in any one of Claims 1-4 which adhere the compound (A) represented by General formula (1) to the cotton cloth 0.1-50 mass%. Processing method. Directly with skin containing the compound (A) represented by the following general formula (1), and the surfactant (B) and / or the organic solvent (C) capable of emulsifying, dispersing or solubilizing the compound (A) A water diffusion accelerator that can impart water diffusion promoting ability to cotton fabric to be touched.
_{^{R 1 -O - [(C 3}} H 6 O) m - (C 2 H 4 O) n] -H (1)
[Wherein R ¹ represents a hydrocarbon group having 6 to 20 carbon atoms, m and n represent the average number of added moles, m is 1 to 20, and the [n / m] ratio is 0/1 to 1/9. It is. ] The compound (A) represented by the general formula (1) is a compound in which R ¹ is an alkyl group having 8 to 10 carbon atoms, m is 2 to 8, and n is 0. The water diffusion accelerator according to claim 6, wherein B) is a nonionic surfactant having an alkyl group having 8 to 20 carbon atoms, and the organic solvent (C) is a monohydric alcohol having 2 to 6 carbon atoms. .   In the water diffusion accelerator composition, the content of the compound (A) represented by the general formula (1) is 0.1 to 40% by mass, and the content of the surfactant (B) is 0.01 to 25. The water diffusion accelerator according to claim 6 or 7, wherein the water diffusion accelerator is mass% and the content of the organic solvent (C) is 0.1 to 70 mass%.   The mass ratio [compound (A) / surfactant (B)] of the compound (A) represented by the general formula (1) and the surfactant (B) is more than 1 and 100 or less. The water-diffusion promoter of -8.