JP2022118974A - Spun yarn and quick drying fabric using the same and quick drying clothing - Google Patents

Abstract

To provide a spun yarn, which is formed of cellulose fibers, representatively cotton fibers, provided with quick-drying property and environmentally excellent and comfortable and has excellent washing resistance, and a quick-drying fabric using the same and a quick-drying clothing.SOLUTION: A spun yarn contains cellulose fibers that are cellulose fiber to which monomer provided with quick-drying property is grafted and cellulose fiber provided with no quick-drying processing. The spun yarn is a blended spun yarn or a core-sheath type spun yarn. A quick-drying fabric includes the spun yarn and is at least one selected from knitted fabric and woven fabric and has quick-drying property. A quick-drying clothing is formed by sewing the quick-drying fabric and an elastic yarn is arranged in circumferential direction of body. The quick-drying property is expressed by, for example, grafting silicone-based compound including at least two ethylenic unsaturated double bond or compound including at least two ethylenic unsaturated double bond and alkoxy group to cotton fibers by electron beam irradiation.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a spun yarn having cellulose fibers such as cotton as the main fiber yarn, a quick-drying fabric using the same, and quick-drying clothing using the quick-drying fabric.

BACKGROUND ART Natural cellulose fibers, typified by cotton fibers, are environmentally friendly and are excellent in texture, dyeability, water absorbency, etc., and are therefore widely used in various clothes. However, since the moisture absorbed by cotton fibers evaporates slowly, once it absorbs sweat, it does not dry easily.

So-called water-absorbing and quick-drying fibers, including cotton fibers, which are excellent in water absorption and drying properties, are disclosed in Patent Documents 1 to 5. Patent Literature 1 discloses a method for quick-drying cellulose-based fibers processed with a cellulose-reactive resin such as glyoxal-based resin. Patent Document 2 discloses a fabric in which the outermost layer is composed of hydrophobic fibers such as polyester fibers, and the inner and/or intermediate layers are composed of cellulose multifilament fibers. In Patent Document 3, the core is made of fibers with an official moisture content of 3.5% or more, such as rayon and cupra, and the sheath is made of fibers with an official moisture content of 1.0% or less, such as polyester fibers. A woven or knitted fabric using a core-sheath type composite yarn is disclosed. Further, Patent Document 4 discloses a water-absorbing quick-drying knitted fabric composed of multi-layered spun yarn having a core fiber made of cotton and a sheath fiber made of cotton, and having a twist coefficient of 3.0 to 5.0. 5 is twisted in the same direction with a sheath fiber at a twist coefficient of 2.5 to 4.0. Furthermore, in Patent Document 5, two types of knitting yarns, a hygroscopic fiber yarn made of natural fibers with excellent hygroscopicity and a non-hygroscopic multifilament yarn made of multifilaments composed of non-hygroscopic synthetic fibers, are disclosed. Also disclosed is a quick-drying knitted fabric using

JP-A-61-207672 JP-A-10-25637 Japanese Unexamined Patent Application Publication No. 2002-266207 JP 2015-67927 A Japanese Patent No. 2001-288650

However, since these fibers are synthetic fibers, mainly synthetic fibers, especially polyester fibers, the dyeability of cotton fibers and polyester fibers is different, making uniform dyeing difficult and the texture is not optimal. . Furthermore, although common polyester fibers are often used as the main material, they do not decompose naturally, so there is a problem of disposal after use. In addition, resin-treated cotton fibers and hard-twisted cores have problems in texture and washing resistance.
In recent years, from the viewpoint of the Sustainable Development Goals (SDGs) set by the United Nations, cotton fiber (cotton) has been reconsidered as inner clothing such as underwear, but cotton itself is the main material, and the texture and washing resistance are No technology has been found that imparts quick-drying properties along with excellent properties.

In order to solve the above-mentioned conventional problems, the present invention provides a spun yarn that imparts quick-drying properties to cellulose fibers typified by cotton fibers (cotton) and has excellent environmental aspects as well as water absorbency, comfort and washing resistance. To provide a water-absorbing and quick-drying fabric and a water-absorbing and quick-drying clothing using

The spun yarn of the present invention is a spun yarn containing cellulose fibers, and contains cellulose fibers grafted with a quick-drying monomer and non-quick-drying processed cellulose fibers, and the spun yarn is a blended spun yarn or a core-sheath type It is characterized by being a spun yarn. The non-quick-drying treatment in the present invention means that the cellulose fibers are not subjected to the quick-drying treatment as mentioned in the prior art.

The quick-drying fabric of the present invention is a fabric containing the above spun yarn, the fabric is at least one fabric selected from knitting and woven fabrics, and is characterized by having quick-drying properties.

The quick-drying garment of the present invention is a garment sewn from the above-described quick-drying fabric, and is characterized in that elastic threads are arranged in the circumferential direction of the body.

The present invention includes cellulose fibers grafted with quick-drying monomers and non-quick-drying processed cellulose fibers, and the spun yarn is a blended spun yarn or a core-sheath type spun yarn, so that cotton fibers (cotton) are used. By imparting quick-drying properties to representative cellulose fibers, it is possible to provide spun yarn excellent in environmental aspects, comfort and wash resistance, and quick-drying fabrics and quick-drying clothing using the same.

FIG. 1 is a front view of an inner garment according to one embodiment of the present invention.

The yarn of the invention is a spun yarn comprising cellulose fibers. Cellulose fibers include natural fibers such as cotton and hemp, and chemical fibers such as rayon. Of these, cotton is preferred because it is the most versatile for clothing.

The yarn of the present invention comprises cellulose fibers grafted with fast-drying monomers and non-fast-drying processed cellulose fibers. Examples of quick-drying monomers to be grafted include so-called hydrophobic compound monomers and monomers that inhibit contact between hydroxyl groups of cellulose fibers and water in the liquid phase. For example, silicone compounds containing at least two or more ethylenically unsaturated double bonds, compounds containing at least two or more ethylenically unsaturated double bonds and alkoxy groups, at least two or more ethylenically unsaturated double bonds and urethane and compounds containing linking groups. As the silicone-based compound, for example, an acryl-modified silicone (organopolysiloxane containing an acryl group) compound is preferable. As the compound containing at least two ethylenically unsaturated double bonds and an alkoxy group, for example, ethoxylated pentaerythritol tetraacrylate is preferable. Examples of the compound containing at least two ethylenically unsaturated double bonds and urethane bonding groups include urethane acrylate compounds.

The quick-drying monomer is preferably graft-bonded to the cellulose fiber by electron beam irradiation. The graft bond has an ethylenically unsaturated double bond containing a functional group (-OH, _-NH2 , etc.) in the reaction that generates radicals on the cellulosic fiber surface by irradiating electron beams. Various reactions such as a reaction of graft bonding to the surface of the cellulosic fiber by contacting the compound, a reaction of the active group reacting with the carboxylic acid group (--COOH) to form a covalent bond, and the like are formed. The quick-drying monomer is preferably added in an amount of 0.5 to 30% by mass, more preferably 0.5 to 20% by mass, relative to the cellulosic fiber. Within the above range, the quick-drying function can be exhibited even when blended with untreated cotton.

The yarn of the present invention is a blended spun yarn or a core-sheath type spun yarn containing cellulose fibers grafted with quick-drying monomers and non-quick-drying processed cellulose fibers. Blended spun yarns are preferably carded or sliver blended. The core-sheath type spun yarn is obtained by spinning each fiber bundle from the front roller of a spinning machine, making one fiber bundle into a core, winding the other around the core to make a sheath, twisting and winding. It should be noted that the moisture content of the yarn of the present invention is comparable to that of unprocessed cotton. That is, when the moisture content after being left for 2 hours at a temperature of 20° C. and a relative humidity of 95% RH is measured, the unprocessed cotton is about 14 to 16%, but the spun yarn of the present invention is about 11 to 16%. degree. It is less than 10% for a spun yarn of 80% cotton and 20% polyester.

Next, the fabric of the present invention will be explained. The fabric of the present invention is at least one selected from knitted fabrics and woven fabrics formed from blended spun yarns or core-sheath type spun yarns containing cellulose fibers grafted with quick-drying monomers and non-quick-drying processed cellulose fibers. It is a fabric that absorbs water and dries quickly. Water absorption in water absorption and quick drying refers to a water absorption time of less than 3 seconds in a test conforming to JISL1907 (dropping method). Preferably less than 1 second. Quick drying in water absorption and quick drying means that the diffusible residual moisture content after 60 minutes is lower than that of unprocessed 100% cotton fabric. Preferred quick-drying property is a diffusible residual moisture content of 30% or less after 60 minutes. About 0.3 ml of water is dripped onto the sample at 20° C. and 65% RH, the weight is measured every elapsed time, and the diffusible residual moisture content is calculated by the following formula.
Percentage of residual diffusible moisture (%) = Weight of moisture per hour (g) / Weight of moisture immediately after dropping (g) x 100
The washing durability is measured before and after 10 washings. Washing conditions comply with JIS L 0217 103 method.

Based on 100% by mass of the fabric, it is preferable that the cellulose fiber graft-bonded with the quick-drying monomer is 5-40% by mass, and the non-quick-drying processed cellulose fiber is 60-95% by mass. As a result, the quick-drying property is improved.

When the fabric is 100% by mass, the cellulose fiber grafted with the quick-drying monomer is 5 to 40% by mass, the non-quick-drying processed cellulose fiber is 57 to 92% by mass, and the elastic yarn ( C) also preferably comprises 3 to 15% by weight. Thereby, stretchability can be improved.

The fabric is a knitted fabric, and the ratio of knitting yarns constituting the fabric is that 1 to 2 yarns out of 3 yarns are the blended or core-sheath type spun yarns, and the remaining yarns are non-quick-drying processed yarns. is preferred.

The fabric is preferably knitted or woven. Knitted and woven fabrics are suitable for making inner garments. Knitted fabrics, in particular, are elastic and flexible, and are suitable for inner garments. It is preferable that 1 to 2 out of 3 yarns constituting the fabric are the blended spun yarns, and the remaining yarns are non-quick-drying processed cotton spun yarns. Knitting includes circular knitting, weft knitting, warp knitting (including tricot knitting and raschel knitting), pile knitting, flat knitting, jersey knitting, rib knitting, smooth knitting (both sides knitting), rubber knitting, pearl knitting, Denby Any weave such as weave, cord weave, atlas weave, chain weave, insert weave, and a combination of these weaves may be used. Different knitting methods are used to make knitted fabrics. The mixed knitted fabric may be warp knitted or weft knitted, and examples thereof include tricot, raschel, circular knit and the like. The knitting structure may be any knitting structure such as half knitting, reverse half knitting, double atlas knitting, double Denby knitting, and knitted fabrics in which these are combined. Plain weaves, twill weaves, satin weaves, variable plain weaves, variable twill weaves, variable satin weaves, variable weaves, patterned weaves, single layered weaves, double weaves, multiple weaves, warp pile weaves, weft pile weaves, There is a leno weave, or a combination of these weaves. Among these, weft-knitted fabrics including circular knitted fabrics or warp-knitted fabrics are preferable.

The mass per unit area (basis weight) of the fabric is preferably 80 to 300 g/m ² , more preferably 90 to 250 g/m ² , still more preferably 100 to 250 g/m ² . If it is within the above range, it is suitable as an inner garment.

The elastic yarn is preferably at least one selected from polyurethane yarn and conjugate yarn obtained by composite spinning at least two kinds of polymers having different shrinkage factors. The polyurethane elastic thread is not particularly limited as long as it uses polymer diol and diisocyanate as starting materials. The conjugate yarn is a conjugate yarn in which at least two types of polymers having different shrinkage ratios are conjugated and spun, and crimps are developed from the raw yarn stage, but when heat is applied, It expresses larger crimps. Specifically, a conjugate yarn (bicomponent yarn) of polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) is preferred. Examples of such latent crimp type stretch yarns include Toray Operontex Co., Ltd., trade name "Lycra T400", KB Seiren Co., Ltd., trade name "Espandy", and Unitika Co., Ltd., trade name "Z10". A commonly used elastic thread is a polyurethane thread.

In the case of weft-knitted fabrics and circular-knitted fabrics, bare spandex yarns are often used as attachment yarns for loop yarns. In the case of so-called inner garments, circular knitting is usually employed, and elastic yarns, especially polyurethane elastic yarns, are used as attachment yarns for loop yarns. The polyurethane elastic thread is usually inserted as a lining thread in a state in which a 30 d thread is stretched about 2.5 times.

In the garment sewn from the quick-drying fabric of the present invention, elastic threads are arranged around the body. It is a so-called one-way stretch fabric. The circumferential direction of the body is the circumferential direction of the torso and the circumferential direction of the arms. As a result, the inner garment is comfortable to wear and does not lose its shape even after repeated washing. This garment is preferably a shirt or pants. The inner garment of the present invention contains 85% by mass or more, preferably 88% by mass or more, more preferably 90% by mass or more of cotton as the main fiber, and is gentle on the skin.

Next, the manufacturing method of the present invention will be described by exemplifying a blended spun yarn using cotton (natural cellulose fiber) as a cellulose fiber. For spinning cotton sliver, hydrophobic compound monomers and monomers that inhibit contact between hydroxyl groups of cellulose fibers and water in the liquid phase, such as silicone compounds containing at least two or more ethylenically unsaturated double bonds, After imparting a compound containing at least two ethylenically unsaturated double bonds and an alkoxy group, in the case of a continuous method, an electron beam is irradiated in a nitrogen atmosphere to form an ethylenically unsaturated double bond on the surface of the cotton fiber. It is possible to graft polymerize a silicone compound containing a bond and a compound containing an ethylenically unsaturated double bond and an alkoxy group. In addition, a step of applying a silicone compound containing an ethylenically unsaturated double bond and a compound containing an ethylenically unsaturated double bond and an alkoxy group to cotton fibers, and a step of applying a silicone compound containing an ethylenically unsaturated double bond , and a compound containing an ethylenically unsaturated double bond and an alkoxy group, may be irradiated with an electron beam either continuously or discontinuously. Irradiation with an electron beam may be performed either before or after (including simultaneously with) application of the quick-drying property-imparting monomer, but irradiation with an electron beam in a nitrogen atmosphere is preferable because the generated radicals are less likely to be deactivated.

A method of contacting the surface of cotton fibers with a quick-drying monomer, such as a silicone compound containing at least two ethylenically unsaturated double bonds, or a compound containing at least two ethylenically unsaturated double bonds and an alkoxy group. may be any method such as a dipping method or a spray method. It is preferable to prepare the quick-drying property-imparting monomer in an aqueous solution and immerse the sliver in it or spray it onto the sliver.

In the present invention, by blending and spinning the treated spinning sliver and other untreated sliver, a spun yarn having quick-drying properties while maintaining water absorbency can be obtained. That is, the spun yarn made of sliver to which a hydrophobic compound is applied has a reduced water absorbency, and the water absorbency of the fabric obtained from such yarn is not favorable. For blend spinning, a drawing process including a doubling process is usually preferred. However, the carding process (carding process), roving process, and spinning process are also possible, and a plurality of webs, sliver, fleece, and roving yarns can be arranged and blended by drawing them at a predetermined ratio. In the roving process and the spinning process, blending can be achieved by migration of the constituent fibers during twisting. Furthermore, it is also possible to return the sliver for spinning after the above-mentioned treatment to the blending step to achieve a desired blending ratio.

After the cotton grafted with the quick-drying monomer and the non-quick-drying processed cotton are blended, blended spun yarn (A) is obtained by a conventional method. A spun yarn of non-quick-drying processed cotton is also referred to as a spun yarn (B) according to a conventional method. Predetermined amounts of the blended spun yarn (A), spun yarn (B) and elastic yarn (C) are used to prepare a quick-drying fabric. This fabric may optionally be subjected to post-processing such as bleaching, dyeing, and softening in accordance with conventional methods.
The above is an example of a blended spun yarn containing cellulose fibers grafted with quick-drying monomers and non-quick-drying processed cellulose fibers. It may be a core-sheath type spun yarn. In this case, it is preferable that the non-quick-drying processed cellulose fiber is arranged in the core, and the blended spun yarn containing the cellulose fiber grafted with the quick-drying monomer and the non-quick-drying processed cellulose fiber is used as a sheath.

FIG. 1 is a front view of inner garment 1 in one embodiment of the present invention. This inner garment 1 is an example of a long-sleeved shirt. Elastic threads are arranged in the circumferential direction of the body, that is, in the circumferential direction of the torso (arrow 2) and in the circumferential direction of the arm (arrow 3).

Examples will be described below. The present invention should not be construed as being limited to the following examples.
<Diffusible residual moisture content>
About 0.3 ml of water is dripped onto the sample at 20° C. and 65% RH, the weight is measured every elapsed time, and the diffusible residual moisture content is calculated by the following formula.
Percentage of residual diffusible moisture (%) = Weight of moisture per hour (g) / Weight of moisture immediately after dropping (g) x 100
<Water absorption>
Water absorbency conforms to JISL1907 (dropping method).
<Washing durability>
Wash durability is measured before washing and after 10 washes. Washing conditions comply with JIS L 0217 103 method.

(Example 1)
<Treatment of sliver>
Ethoxylation containing 0.5% by mass of penetrant ("INVADINE 650" manufactured by HUNTSMAN) for cotton sliver (mass per unit length, unit gelen: 25.0 g / 6 yd (4.6 g / m)) It was immersed in a 2.4% by mass aqueous solution of pentaerythritol tetraacrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., trade name "ATM35E") and squeezed with a mangle so that the pickup rate was about 100% by mass with respect to the sliver mass. . Next, it was dried continuously for 7.5 minutes in a hot air dryer at 130°C.
Next, using an electrocurtain type electron beam irradiation apparatus EC250/30/90L (manufactured by Iwasaki Electric Co., Ltd.), an electron beam was irradiated twice at an acceleration voltage of 200 kV and 15 kGy.
The sliver thus obtained is called "treated cotton".
<Spun Yarn>
(1) Blended Yarn Containing Treated Cotton The above-described treated cotton and untreated cotton were blended in a cotton blending process to spun a yarn of cotton count 40. The proportion of treated cotton in the blended yarn was set to 30% by mass. Incidentally, the moisture content was 14.0%.
(2) Untreated cotton spun yarn A yarn of cotton count 40 was spun using untreated cotton sliver.
<Knitting>
The blended yarn containing the treated cotton and the untreated cotton spun yarn are used, and the blended yarn containing the treated cotton is used as a supply yarn at a ratio of 1 yarn to 2 untreated cotton spun yarns, and a circular knitting machine is used. A knitted fabric with a jersey knitting structure was knitted. The proportion of treated cotton in the fabric is 10% by weight. The mass per unit area (basis weight) of the obtained knitted fabric was 151 g/m ² .
<Bleaching and finishing>
The resulting knitted fabric was subjected to bleaching treatment and finishing treatment according to the usual methods.

(Example 2)
<Treatment of sliver>
Ethoxylated penta containing 0.5% by mass of penetrant (same as in Example 1) with respect to cotton sliver (mass per unit length, unit gelen: 25.0 g / 6 yd (4.6 g / m)) It was immersed in a 5.0% by mass aqueous solution of erythritol tetraacrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., trade name "ATM35E") and squeezed with a mangle so that the pick-up rate was about 100% by mass with respect to the sliver mass. Next, it was dried continuously for 7.5 minutes in a hot air dryer at 130°C.
Next, using an electrocurtain type electron beam irradiation apparatus EC250/30/90L (manufactured by Iwasaki Electric Co., Ltd.), an electron beam was irradiated twice at an acceleration voltage of 200 kV and 15 kGy.
The sliver thus obtained is called "treated cotton".
<Spun Yarn>
(1) Blended Yarn Containing Treated Cotton The above-described treated cotton and untreated cotton were blended in a cotton blending process to spun a yarn of cotton count 40. The proportion of treated cotton in the blended yarn was set to 30% by mass. Incidentally, the moisture content was 14.2%.
(2) Untreated cotton spun yarn A yarn of cotton count 40 was spun using untreated cotton sliver.
<Knitting>
The blended yarn containing the treated cotton and the untreated cotton spun yarn are used, and the blended yarn containing the treated cotton is used as a supply yarn at a ratio of 1 yarn to 2 untreated cotton spun yarns, and a circular knitting machine is used. A knitted fabric with a jersey knitting structure was knitted. The proportion of treated cotton in the fabric amounts to 10% by weight. The mass per unit area (basis weight) of the obtained knitted fabric was 153 g/m ² .
<Bleaching and finishing>
The resulting knitted fabric was subjected to bleaching treatment and finishing treatment according to the usual methods.

(Example 3)
<Treatment of sliver>
Acrylic-modified silicone containing 0.5% by mass of penetrating agent (same as in Example 1) with respect to cotton sliver (mass per unit length, unit gelen: 25.0 g / 6 yd (4.6 g / m)) (manufactured by Shin-Etsu Chemical Co., Ltd., trade name “KF2005”), and squeezed with a mangle so that the pick-up rate is about 100% by mass with respect to the sliver mass. Next, it was dried continuously for 7.5 minutes in a hot air dryer at 130°C.
Next, using an electrocurtain type electron beam irradiation apparatus EC250/30/90L (manufactured by Iwasaki Electric Co., Ltd.), an electron beam was irradiated twice at an acceleration voltage of 200 kV and 15 kGy.
The sliver thus obtained is called "treated cotton".
<Spun Yarn>
(1) Blended Yarn Containing Treated Cotton The above-described treated cotton and untreated cotton were blended in a cotton blending process to spun a yarn of cotton count 40. The proportion of treated cotton in the blended yarn was set to 30% by mass. Incidentally, the moisture content was 14.2%.
(2) Untreated cotton spun yarn A yarn of cotton count 40 was spun using untreated cotton sliver.
<Knitting>
The blended yarn containing the treated cotton and the untreated cotton spun yarn are used, and the blended yarn containing the treated cotton is used as a supply yarn at a ratio of 1 yarn to 2 untreated cotton spun yarns, and a circular knitting machine is used. A knitted fabric with a jersey knitting structure was knitted. The proportion of treated cotton in the fabric amounts to 10% by weight. The mass per unit area (basis weight) of the obtained knitted fabric was 157 g/m ² .
<Bleaching and finishing>
The resulting knitted fabric was subjected to bleaching treatment and finishing treatment according to the usual methods.

(Example 4)
<Treatment of sliver>
Acrylic-modified silicone containing 0.5% by mass of penetrating agent (same as in Example 1) with respect to cotton sliver (mass per unit length, unit gelen: 25.0 g / 6 yd (4.6 g / m)) (manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KF2005"), and then squeezed with a mangle so that the pick-up rate is about 100% by mass with respect to the sliver mass. Next, it was dried continuously for 7.5 minutes in a hot air dryer at 130°C.
Next, using an electrocurtain type electron beam irradiation apparatus EC250/30/90L (manufactured by Iwasaki Electric Co., Ltd.), an electron beam was irradiated twice at an acceleration voltage of 200 kV and 15 kGy.
The sliver thus obtained is called "treated cotton".
<Spun Yarn>
(1) Blended Yarn Containing Treated Cotton The above-described treated cotton and untreated cotton were blended in a cotton blending process to spun a yarn of cotton count 40. The proportion of treated cotton in the blended yarn was set to 30% by mass.
(2) Untreated cotton spun yarn A yarn of cotton count 40 was spun using untreated cotton sliver.
<Elastic Thread>
22 decitex products of commercially available polyurethane-based elastic thread were used.
<Knitting>
The blended yarn containing the treated cotton, the untreated cotton spun yarn, and the elastic yarn are used, and the blended yarn containing the treated cotton is used as a supply yarn at a ratio of one yarn to two untreated cotton spun yarns, and the elastic yarn was inserted so as to be 7% by mass of the dough. In addition, the elastic thread was inserted into each thread as a splint thread so as to be 7% by mass of the fabric under tension so as to be stretched 2.5 times. A knitted fabric with a jersey knit structure was knitted using a circular knitting machine. The mass per unit area (basis weight) of the obtained knitted fabric was 175 g/m ² .
<Bleaching and finishing>
The resulting knitted fabric was subjected to bleaching treatment and finishing treatment according to the usual methods.

(Example 5)
The blended yarn containing the treated cotton of Example 2, the untreated cotton spun yarn, and the elastic yarn are used, and the blended yarn containing the treated cotton is used as a supply yarn at a ratio of 1 to 2 untreated cotton spun yarns. , a circular knitting machine was used to knit a jersey knitted fabric. The mass per unit area (basis weight) of the obtained knitted fabric was 172 g/m ² .
<Bleaching, Dyeing, Finishing>
The resulting knitted fabric was subjected to bleaching treatment, dyeing treatment and finishing treatment according to the usual methods.
The color of the fabric is dark NAVY color.

(Comparative Example 1-2)
Examples 1 and 5 were carried out as in Examples 1 and 5, except that no treated cotton was used, using knits obtained from raw cotton fibers only. In addition, the mass per unit area (basis weight) of the obtained knitted fabric was 150 g/m 2 in Comparative Example 1 and 158 g/m ² in Comparative Example ² . The spun yarn obtained only from unprocessed cotton fibers had a moisture content of 14.6%.
Using Example 1-5 and Comparative Examples 1 and 2 as samples, a water absorption test and a diffusible residual moisture content test were carried out, and the results are summarized in Table 1-5.

As is clear from Table 1-5, Examples 1-5 had a water absorbency similar to that of unprocessed cotton fibers, but had high quick-drying properties. Further, in a wearing test, it was confirmed that the shirts of Examples 4 and 5 have good moisture absorption and desorption properties, are comfortable to wear because they do not get stuffy, and are gentle on the skin.

The quick-drying fabric of the present invention and quick-drying clothes using the same are suitable for inner clothes such as shirts and pants. In addition, it is suitable for T-shirts and the like because it is gentle on the skin.

1 Inner garment 2 Circumference direction of torso 3 Circumference direction of arm

Claims (10)

A spun yarn comprising cellulose fibers,
including cellulose fibers grafted with quick-drying monomers and non-quick-drying processed cellulose fibers,
A spun yarn, wherein the spun yarn is a blended spun yarn or a core-sheath type spun yarn. 2. The spun yarn according to claim 1, wherein the cellulose fibers graft-bonded with the quick-drying monomer are cellulose fibers graft-bonded with the quick-drying monomer by electron beam irradiation. The quick-drying monomer is at least one compound selected from silicone compounds containing at least two ethylenically unsaturated double bonds and compounds containing at least two ethylenically unsaturated double bonds and an alkoxy group. A spun yarn according to claim 1 or 2. The spun yarn according to any one of claims 1 to 3, wherein the cellulose fiber is cotton. A fabric comprising the spun yarn according to any one of claims 1 to 4,
A water-absorbing and quick-drying fabric, wherein the fabric is at least one fabric selected from knitted fabrics and woven fabrics, and has water-absorbing and quick-drying properties. 5. When the fabric is 100% by mass, the cellulose fiber grafted with the quick-drying monomer is 5-40% by mass, and the non-quick-drying processed cellulose fiber is 60-95% by mass. The water-absorbing and quick-drying fabric described in . When the fabric is 100% by mass, the cellulose fiber grafted with the quick-drying monomer is 5 to 40% by mass, the non-quick-drying processed cellulose fiber is 57 to 92% by mass, and the elastic yarn ( The water-absorbing quick-drying fabric according to claim 5, wherein C) contains 3 to 15% by mass. The fabric is a knitted fabric, and the ratio of knitting yarns constituting the fabric is that 1 to 2 out of 3 yarns are the blended or core-sheath type spun yarns, and the remaining yarns are non-quick-drying processed yarns. The water-absorbing and quick-drying fabric according to any one of Items 5 to 7. A water-absorbent and quick-drying garment, which is sewn from the quick-drying fabric according to any one of claims 5 to 8, wherein elastic threads are arranged in a direction around the body. 10. The water-absorbent and quick-drying garment according to claim 9, wherein the garment is an inner garment and is a shirt or pants.

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