JP2015120983A - Interknit fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knitted fabric that is excellent in elongation property, elongation recovery performance and soft touch feeling and reduces fluff in a knitted fabric obtained by interknitting a spun yarn comprising a solvent-spun cellulose fiber with a polyester yarn having stretchability.SOLUTION: There is provided a knitted fabric composed of a jersey stitch obtained by a plating stitch technique in which a spun yarn that comprises a solvent-spun cellulose fiber and has 60 to 120 yarn count in terms of English cotton count serves as a ground yarn, and a polyester yarn having stretchability serves as a plating yarn. In the knitted fabric, each of the spun yarn and the polyester yarn has a stitch length of 1 mm or more and 5 mm or less and the knitted fabric exhibits elongation recovery ratio of 80% or more in warp and weft directions.

Description

  The present invention relates to a knitted knitted fabric, and more particularly to a knitted fabric obtained by knitting a spun yarn made of solvent-spun cellulose fiber and a polyester yarn having stretchability.

  2. Description of the Related Art Conventionally, cellulosic fibers such as cotton have been used in innerwear, sportswear, and the like because they have excellent texture softness, sweat absorption, hygroscopicity, and the like. In recent years, a knitted fabric that fits the body and is easy to move tends to be preferred. Therefore, even in a knitted fabric using cellulosic fibers, elastic fibers typified by polyurethane elastic fibers are knitted.

  For example, Patent Document 1 discloses a knitted fabric in which a cupra ammonium rayon yarn and a polyurethane fiber are specifically knitted as a knitted fabric in which cellulosic fibers and elastic fibers are knitted. However, polyurethane fibers are inferior in heat resistance, chlorine resistance, chemical resistance, strength, and the like, and there is a problem that usage is limited.

  As a knitted fabric that solves the above-mentioned problems, a knitted fabric composed of cellulosic fibers and polytrimethylene terephthalate fibers, to which a specific water-absorbing silicone compound is attached is known (for example, Patent Document 2). According to the knitted fabric, since the entanglement of the fluff can be suppressed by adhering a specific water-absorbing silicone compound to the knitted fabric, the reduction of the stretch function due to physical and chemical effects such as repeated wearing and selection. It is said that there can be provided a knitted fabric mixed with cellulose spun yarn excellent in high stretchability and the like required as clothing and clothing materials that fit the body without any embrittlement.

  On the other hand, solvent-spun cellulose fibers are known as cellulosic fibers. Solvent-spun cellulose fibers are attracting attention as inner clothing and sports clothing because they have higher strength and softer texture than other regenerated cellulose fibers such as rayon and cupra.

JP 2006-2283 A JP 2008-95245 A

  This inventor examined using the technique currently disclosed by patent document 2 to knit a solvent-spun cellulose fiber and the polyester yarn which has elasticity, such as a polytrimethylene terephthalate fiber, to make a knitted fabric. However, since solvent-spun cellulose fibers are highly aligned in the fiber long axis direction, the fibers tend to tear and become fibrillated, and even if a finishing treatment with a silicone compound or the like is performed, the resulting knitted fabric has a lot of fluff. There was a problem. There is also a problem that the soft texture of the solvent-spun cellulose fiber cannot be fully utilized depending on the knitted fabric structure.

  The present invention relates to a knitted fabric obtained by knitting a spun yarn made of solvent-spun cellulose fibers and a polyester yarn having stretchability, and has excellent stretchability and stretch recovery properties, and has less fluff and excellent soft texture. The issue is to provide

  The present inventor examined the cause of the increase in fluff of the knitted fabric obtained by knitting the spun yarn of the solvent-spun cellulose fiber and the polyester yarn, and the solvent-spun cellulose fiber is more fibrillated and more I found out. That is, since the polyester yarn needs to be dyed under high temperature and high pressure conditions, the fibrillation of the solvent-spun cellulose fiber knitted with the polyester yarn at the time of dyeing is particularly easy to proceed. Further, among the polyester yarns, polytrimethylene terephthalate fiber and the like When knitting with a polyester yarn having stretchability, it was found that the generation of fluff was particularly increased. In such a case, even if a finishing process using a silicone compound or the like after the dyeing process, which is a technique disclosed in Patent Document 2, fluff cannot be completely reduced.

  Therefore, the present inventor paid attention to a viewpoint completely different from the idea of reducing the fluff by the finishing process of the knitted fabric in Patent Document 2, that is, the relationship between the count of the solvent-spun cellulose fiber and the stitch length in the knitted fabric. Usually, in a knitted fabric, fluff can be reduced by shortening the stitch length, but the stretchability and stretch recovery properties are inferior. As a result of further investigations aimed at achieving both reduction in fluff and excellent extensibility and elongation recovery, the present inventor has specified the stitch length and the yarn count of solvent-spun cellulose fibers. It has been found that it can be made excellent in extensibility and elongation recovery. That is, by using the spun yarn as a specific yarn, it is possible to increase the degree of freedom in the knitted fabric of the spun yarn after the width insertion that occurs during relaxation and dyeing processing, and even if the stitch length is short, the stretchability and It has been found that it can be excellent in elongation recovery. As a result of further studies, in addition to the above, the texture of the solvent-spun cellulose fibers becomes softer by specifying a knitted fabric structure composed of solvent-spun cellulose fibers and stretchable polyester yarns. The present invention was completed. That is, the gist of the present invention is as follows.

(1) A knitting made of a solvent-spun cellulose fiber and composed of a tengu knitting structure in which a spun yarn having an English cotton count of 60 to 120 is used as a base yarn, and a polyester yarn having elasticity is used as an accessory yarn. The stitch length of the spun yarn and the polyester yarn in the knitted fabric is 1 mm or more and 5 mm or less, and the elongation recovery rate in the warp and weft directions of the knitted fabric is 80% or more. A knitted fabric characterized by
(2) The knitted fabric according to (1) above, wherein the solvent-spun cellulose fiber is processed to prevent fibrillation.
(3) The knitted fabric according to (1) or (2), wherein the spun yarn has a twist coefficient of 4.0 or more.
(4) The knitted fabric according to any one of (1) to (3), wherein a stitch length of the stretchable polyester yarn is 90 to 97% of a stitch length of the spun yarn.
(5) The knitted fabric according to any one of (1) to (4), wherein the stretchable polyester yarn is made of polytrimethylene terephthalate fiber.

  According to the knitted fabric of the present invention, the yarn count of the solvent-spun cellulose fiber and the knitted fabric structure composed of the solvent-spun cellulose fiber and the stretchable polyester yarn are specified to be extensible. In addition, it is possible to provide a knitted fabric that is excellent in stretch recovery, has few fluff even after high-temperature and high-pressure dyeing, and has a soft texture.

  Hereinafter, the present invention will be described in detail.

  The knitted fabric of the present invention needs to contain a spun yarn composed of solvent-spun cellulose fibers.

  In the present invention, the solvent-spun cellulose fiber is a fiber obtained by dissolving a wood pulp with an organic solvent and spinning it by a dry spinning method or a wet spinning method. Examples of the wood pulp include conifer pulp obtained from red pine, spruce, fir, cedar and the like, and hardwood pulp obtained from zelkova, beech, eucalyptus and the like. Examples of the organic solvent include solvents that can dissolve wood pulp, such as N-methylmorpholine-N-oxide, dimethyl sulfoxide, N-methylpiperidine-N-oxide, and dimethylacetamide. The solvent-spun cellulose fiber used in the present invention is obtained by dissolving a wood pulp obtained from Eucalyptus in an aqueous solution of N-methylmorpholine-N-oxide to form a spinning stock solution, and in a dilute solution of N-methylmorpholine-N-oxide. Extruded and fiberized are preferred.

  In the present invention, it is preferable that the solvent-spun cellulose fiber has been processed to prevent fibrillation. In the present invention, the fibrillation prevention processing is to cross-link solvent-spun cellulose fibers with a cross-linking agent having two or more functional groups capable of reacting with hydroxyl groups in cellulose molecules. As this crosslinking agent, the compound which has a chlorohydrin group is mentioned, for example, The compound which has 2-4 chlorohydrin groups in 1 molecule is preferable. Examples of the compound having 2 to 4 chlorohydrin groups in one molecule include sorbitol polychlorohydrin, sorbitan polychlorohydrin, polyglycerol polychlorohydrin, glycerol polychlorohydrin, ethylene glycol dichlorohydrin. Examples include drin, polyethylene glycol dichlorohydrin, polypropylene glycol dichlorohydrin, trimethylolpropane polychlorohydrin, pentaerythritol polychlorohydrin, and the like. Of these, polyethylene glycol dichlorohydrin is preferable. This makes it easy to prevent fibrillation by strongly crosslinking while maintaining the soft texture of the solvent-spun cellulose fiber.

  Moreover, it is preferable to process the fibrillation prevention processing in the aqueous solution containing the reaction accelerator which consists of a compound which shows alkalinity, and a neutral salt. Examples of the alkaline compound include alkali metal hydroxides such as lithium and sodium, alkaline earth metal hydroxides such as magnesium and calcium, and alkaline salts of weak acids and strong bases such as sodium carbonate and sodium acetate. Preferably, sodium hydroxide can be mentioned. Moreover, as a neutral salt, the neutral salt which consists of strong acids, such as a sulfuric acid, nitric acid, and hydrochloric acid, and strong bases, such as sodium, potassium, and lithium, can be mentioned, Especially, a sodium sulfate is preferable.

  The fibrillation prevention processing may be performed in any form of cotton, spun yarn or knitted fabric of the solvent cellulose fiber, but is preferably performed in the form of cotton. Cotton form refers to fibers in the form of loose hairs and staple fibers. This makes it easier to suppress fibrillation of the solvent cellulose fiber not only in the dyeing process but also in the spinning process of the solvent-spun cellulose fiber and the weaving and knitting process, and the resulting knitted fabric has less fluff.

  As the processing machine used to perform the anti-fibrillation processing, a package dyeing machine used for cotton or yarn dyeing is used when the form is cotton, and when the form is knitted fabric, liquid dyeing is used. A batch type dyeing machine such as a machine or an airflow dyeing machine can be used. When using a package dyeing machine, it is preferable to process on the conditions of 40-100 degreeC and 10 to 90 minutes.

  In the present invention, the spinning method is not limited. The mixed cotton process for performing fiber opening, the cotton-making process for performing dust removal and parallelization of fibers, the kneading process for homogenizing a thick fiber bundle, and the fiber for drafting. It can be carried out by a general method such as a spun yarn through a roving process for thinning a bundle and a fine spinning process for twisting while drafting.

  In the present invention, the spun yarn composed of solvent-spun cellulose fibers may be a mixture of other fibers. Examples of the mixing method include mixed spinning, twisting, and drawing. Examples of the other fibers to be mixed include natural fibers and other cellulosic fibers, examples of the natural fibers include cotton, hemp, and wool, and examples of other cellulosic fibers include rayon and polynosic. From the viewpoint of superior softness, the mixing ratio of the solvent-spun cellulose fiber in the spun yarn composed of the solvent-spun cellulose fiber is preferably 40% or more, more preferably 70% or more, and further preferably 90% or more.

  In the present invention, the spun yarn made of solvent-spun cellulose fibers needs to have an English cotton count of 60 to 120.

  By setting the British cotton count to 60 to 120, the stitch length described later has a stretchability and stretch recovery property of the knitted fabric even if it is not normally selected in order to exhibit stretchability and stretch recovery property. It will be excellent. The reason for this is not clear, but by specifying the specific number of solvent-spun cellulose fibers, high-temperature and high-pressure dyeing causes heat shrinkage in both the course and the wale direction, resulting in an increase in the course density and the wale density. In the knitted fabric (which occurs), it is presumed that the degree of freedom of the loop is ensured and the stretchability and stretch recovery properties are excellent.

  Furthermore, when the knitted fabric knitted with a stretchable polyester yarn is dyed by using the 60 to 120 count, the fabric becomes flexible and the wear and thread are reduced, and fibrillation of solvent-spun cellulose fibers is suppressed. And the effect of reducing fluff can be achieved. That is, the knitted fabric of the present invention may have less fluff due to a synergistic effect such as setting the yarn count of solvent-spun cellulose fibers to a specific range and further setting the stitch length to be described later to a specific range. it can. In addition, atari means that the surface of the fabric is rubbed and whitened, and thread means that it is rubbed in a wet state and becomes fluffy.

  In the present invention, the twist coefficient of the spun yarn made of solvent-spun cellulose fibers is preferably 4.0 or more from the viewpoint of reducing the fluff, and 4.0 to 6 from the viewpoint that it is easy to achieve both the reduction of the fluff and the soft texture. 0.0 is more preferable.

  The knitted fabric of the present invention needs to contain a polyester yarn having elasticity.

  The stretchable polyester yarn is not particularly limited as long as it is a stretchable polyester yarn. For example, a stretchable multifilament yarn composed of a single component, two kinds of polyesters having different heat shrinkability are side-by-side or eccentric. Conjugate yarn joined in a core-sheath type.

  Examples of the stretchable multifilament yarn composed of a single component include polytrimethylene terephthalate multifilament and polybutylene terephthalate multifilament. In addition, the stretchable multifilament yarn composed of a single component may be copolymerized with other acid components and / or glycol components, but is a unit constituting the main skeleton, such as trimethylene terephthalate unit, polybutylene terephthalate, etc. The unit is preferably 90 mol% or more.

  Moreover, as a combination of two kinds of polyesters having different heat shrinkage constituting the conjugate yarn, a combination of polyethylene terephthalates having different intrinsic viscosities (hereinafter sometimes referred to as homo-PET), isophthalic acid, 5- Combination of PET and homo-PET copolymerized with sodium sulfoisophthalic acid, bisphenol A or 2,2-bis {4- (β-hydroxy) phenyl} propane, homo-PET and polybutylene terephthalate (hereinafter referred to as homo-PBT) And the like. In particular, a combination of homo-PET and homo-PBT is preferable because it is particularly excellent in stretchability and stretch recovery. In the case of a combination of homo-PET and homo-PBT, the intrinsic viscosity of homo-PET is preferably 0.30 to 0.60, and the intrinsic viscosity of homo-PBT is preferably 0.80 to 1.30. The mass ratio of homo-PET to homo-PBT (homo-PET / homo-PBT) is preferably 30/70 to 50/50.

  The stretchable multifilament yarn composed of the single component may be subjected to false twisting or the like, but from the standpoint of superior softness, it should not be false twisted. Is preferred.

  The total fineness of the stretchable polyester yarn is preferably 20 to 150 dtex from the viewpoint of making full use of the soft texture of the solvent-spun cellulose fiber while being excellent in stretchability and stretch recovery. From the same viewpoint, the single fiber fineness is preferably 0.1 to 10 dtex.

  The knitted fabric of the present invention needs to have a tense knitted structure in which a spun yarn made of solvent-spun cellulose fibers is used as a base yarn and a polyester yarn having elasticity is used as a spliced yarn. By using this structure, the solvent-spun cellulose fiber can be exposed on the surface of the knitted fabric while including the polyester yarn having elasticity, so that the solvent spinning can be performed while maintaining excellent extensibility and elongation recovery. It is possible to make full use of the soft texture of cellulose fibers. In addition, for example, it is possible to make the fabric thinner than in the case of a double knit structure such as a smooth structure or a milling structure.

  In the knitted fabric of the present invention, both the spun yarn made of solvent-spun cellulose fibers and the stretchable polyester yarn must have a stitch length of 1 mm or more and 5 mm or less, and preferably 2 mm or more and 4 mm or less. In the present invention, the stitch length is measured according to JIS L 1096: 2010 8.8. By using the spun yarn described above as a specific count and further setting the stitch length of the spun yarn and the polyester yarn in the knitted fabric within the above range, the knitted fabric obtained for the first time is excellent in stretchability and stretch recovery property, and at a high temperature. Even after high-pressure dyeing, the fluff can be reduced.

When the stitch length exceeds 5 mm, the resulting knitted fabric has a lot of fluff, and when the stitch length is less than 1 mm, the resulting knitted fabric is inferior in stretchability and stretch recovery.

  Further, the stitch length of the stretchable polyester yarn is preferably 90 to 97% of the stitch length of the spun yarn. By setting the stitch length of the polyester yarn having stretchability to 90 to 97% of the stitch length of the spun yarn, the degree of expression of the solvent-spun cellulose fiber is stabilized in the tentacle knitted structure, and the knitted fabric of the present invention Soft texture uniformity tends to be better.

  In the present invention, as the splicing yarn, other yarns other than the polyester yarn having elasticity may be included. Examples of the other yarn include non-stretchable polyester yarn, polyamide yarn, and the like such as homopolyethylene terephthalate multifilament yarn. The mixing ratio of the polyester yarn having elasticity is preferably 15% by mass or more, and more preferably 30% by mass or more. When the other yarns are mixed as a spliced yarn, the stretchability and the recovery of stretch recovery are reduced as much as possible by alternately arranging the polyester yarn having elasticity and the other yarn as a spliced yarn for each course. The other yarn features can be embodied on the knitted fabric while being suppressed.

  The knitted fabric of the present invention can be dyed and finished by heat treatment in a non-tensioned state such as a relaxation process or a liquid dyeing machine after knitting. In dyeing finishing, heat treatment in a non-tensioned state, release from tension during knitting of the knitted structure and stretchability of polyester yarn with stretchability, etc., have even better stretchability and stretch recovery Can do.

  As the staining method, a known staining method can be employed. For example, a method of dyeing stretchable polyester fibers with disperse dyes and solvent-spun cellulose fibers with reactive dyes can be mentioned. As the dyeing conditions for the polyester yarn having stretchability, the knitted fabric of the present invention can have less fluff even after dyeing at high temperature and high pressure. It can be performed under a condition of ˜30 minutes.

  The knitted fabric of the present invention is required to have an elongation recovery rate in the warp and weft directions of 80% or more, preferably 80 to 100%. By setting it as the said range, when the obtained knitted fabric is used as an inner garment and a sports garment, there is no possibility that the knitted fabric after wearing will be stretched out. The elongation recovery rate can be achieved by appropriately selecting the English cotton count of solvent-spun cellulose fibers, the type of polyester yarn having elasticity, the composition of the knitted fabric, the stitch length, the dyeing conditions, and the like.

  In the knitted fabric of the present invention, the elongation in the warp and weft directions is preferably 20% or more, more preferably 20 to 40%. The knitted fabric of the present invention preferably has a thickness of 0.4 to 0.7 mm.

  Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples. In addition, the evaluation method in an Example and a comparative example is as follows.

1. Stretchability of knitted fabric Based on the JIS L 1096: 2010 8.16.1B method, 200 mm intervals were marked, the stretch rate (%) in the warp and weft directions of the knitted fabric was determined, and the stretchability was evaluated.

2. Stretch recovery of knitted fabric In accordance with JIS L 1096: 2010 8.16.2B-2 method, mark an interval of 200 mm to obtain the stretch recovery rate (%) in the warp and weft directions of the knitted fabric, and recover the stretch. Sex was evaluated. A knitted fabric with a warp and weft elongation recovery rate of 80% or more was accepted.

3. The texture of the knitted fabric was evaluated by sensory evaluation by five panelists. In the evaluation, the following criteria were used, and a score of ○ or higher was accepted.
◎ ・ ・ ・ Soft feeling is excellent.
○: Soft feeling is normal.
Δ: Inferior to soft feeling.
X: The soft feeling is remarkably inferior.

4). Knitted fabric fluff Visual evaluation by five panelists was performed. In the evaluation, the following criteria were used, and a score of ○ or higher was accepted.
◎ ・ ・ ・ Slightly fuzzy ○ ・ ・ ・ Slightly fuzzy △ ・ ・ ・ Slightly fuzzy
× ・ ・ ・ There are many fuzz

5. Knitted fabric thickness (mm)
It calculated | required according to JISL1096: 20108.4A method.

Example 1
<Spun yarn made of solvent-spun cellulose fiber>
Solvent-spun cellulose fiber (manufactured by Lenzing Co., Ltd., single yarn fineness 1.5 dtex, fiber length 38 mm) was scoured according to a conventional method in the state of staple fibers, and then applied to an overmeier dyeing machine (manufactured by Nisaka Seisakusho). Then, a crosslinking treatment was performed at 90 ° C. for 45 minutes according to the following formulation 1 at a bath ratio of 1:10 to obtain a solvent-spun cellulose fiber crosslinked in a cotton state.
<Prescription 1>
Polyethylene glycol dichlorohydrin: 30g / l
Sodium hydroxide: 6.5 g / l
Anhydrous mirabilite: 140 g / l
Spinning consisting of solvent-spun cellulose fiber with cross-linked lyocell fiber as raw cotton, blended cotton, cotton wool, kneading, roving, fine spinning, English cotton count of 60/1 and twist factor of 4.2 I got a thread.

<Polyester yarn with elasticity>
A multifilament yarn comprising only polytrimethylene terephthalate as a polyester component and having a total fineness of 56 dtex, a single fiber fineness of 2 dtex, a strength of 2.8 cN / dtex, an elongation of 37%, and an elastic modulus of 75% was prepared.

<Other yarns other than stretchable polyester yarn>
A multifilament yarn comprising only polyethylene terephthalate as a polyester component and having a total fineness of 56 dtex and a single fiber fineness of 2 dtex was prepared.

  Using a circular knitting machine (3FA 30 "28G) manufactured by Fukuhara Seiki Co., Ltd., using the spun yarn made of the solvent-spun cellulose fiber as a ground yarn, other than the stretchable polyester yarn and the stretchable polyester yarn A knitted fabric of a raw machine composed of a tentacle knitting structure in which yarns and knitting yarns were alternately added as a splicing yarn for each course was obtained. The stitch length of the yarn other than the polyester yarn having stretchability and the above-described stretchable polyester yarn was 2.7 mm, and the density of the knitted fabric was 58 course / 2.54 cm. The wale density was 33 pieces / 2.54 cm.

  The knitted fabric was relaxed under conditions of hot water temperature 80 ° C. × 10 minutes, and dyed with a disperse dye using a liquid dyeing machine under conditions of 130 ° C. × 30 minutes. Furthermore, a finishing set of 150 ° C. × 1 minute was performed with a dry heat dryer to obtain a knitted fabric of the present invention. The density of the knitted fabric was 62 courses / 2.54 cm, the wale density was 35 pieces / 2.54 cm, the thickness was 0.6 mm, and the mixing ratio of the polyester yarn having stretchability was 20% by mass.

(Comparative Example 1)
Using a circular knitting machine (3FA 30 "28G) manufactured by Fukuhara Seiki Co., Ltd., using a spun yarn made of the same solvent-spun cellulose fiber as in Example 1 as a base yarn, and a polyester yarn having the same stretch as in Example 1 and stretching From a solvent-spun cellulose fiber in a knitted fabric composed of a tentacle knitting structure in which a yarn other than the polyester yarn having properties is alternately knitted as a spliced yarn every course. The stitch length of the spun yarn is 5.2 mm, and the stitch length of the polyester yarn having elasticity and the yarn other than the polyester yarn having elasticity is 5.3 mm. The course density was 58 pieces / 2.54 cm, and the wale density was 33 pieces / 2.54 cm.

  The knitted fabric was relaxed under conditions of hot water temperature 80 ° C. × 10 minutes, and dyed with a disperse dye using a liquid dyeing machine under conditions of 130 ° C. × 30 minutes. Furthermore, a finishing set of 150 ° C. × 1 minute was performed with a dry heat dryer to obtain a knitted fabric of the present invention. The density of the knitted fabric was a course density of 60 pieces / 2.54 cm, a wale density of 34 pieces / 2.54 cm, a thickness of 0.5 mm, and a blending ratio of the stretchable polyester yarn was 20% by mass.

(Comparative Example 2)
In Example 1, the spun yarn made of solvent-spun cellulose fiber was obtained in the same manner as in Example 1 except that the yarn count of solvent-spun cellulose fiber was changed to 50/1 by English cotton count.

  Using a circular knitting machine (3FA 30 “28G) manufactured by Fukuhara Seiki Co., Ltd., using the spun yarn made of the solvent-spun cellulose fiber as a ground yarn, the polyester yarn having the same stretchability and the polyester yarn having the stretchability as in Example 1 A raw fabric knitted fabric composed of a tenshi knitted fabric was obtained by alternately knitting yarns with other yarns as a spliced yarn for each course, and a spun yarn stitch made of solvent-spun cellulose fibers in the knitted fabric. The length was 3.1 mm, and the stitch length of the polyester yarn having elasticity and the yarn other than the polyester yarn having elasticity was 3.05 mm, and the density of the knitted fabric was 55 course density / It was 2.54 cm and the wale density was 32 pieces / 2.54 cm.

  The knitted fabric was relaxed under conditions of hot water temperature 80 ° C. × 10 minutes, and dyed with a disperse dye using a liquid dyeing machine under conditions of 130 ° C. × 30 minutes. Furthermore, a finishing set of 150 ° C. × 1 minute was performed with a dry heat dryer to obtain a knitted fabric of the present invention. The density of the knitted fabric was 57 courses / 2.54 cm, the wale density was 33 pieces / 2.54 cm, the thickness was 0.7 mm, and the blending ratio of the stretchable polyester yarn was 20% by mass.

  Table 1 shows the evaluation results of the knitted fabrics obtained in Examples and Comparative Examples.

  In the knitted fabric of Example 1, the number of spun yarns made of solvent-spun cellulose fibers is 60 to 120, thereby increasing the degree of freedom in the knitted fabric of the spun yarn after width insertion that occurs during relaxation and dyeing Even when the stitch length was 1 mm or more and 5 mm or less, the stretchability and the stretch recovery property were excellent. In addition, because the spun yarn made of solvent-spun cellulose fiber is used as the ground yarn, and the polyester yarn having elasticity is used as a spliced yarn, it has a tense knitting structure, so that the soft texture of the solvent-spun cellulose fiber can be fully utilized. Was made. In particular, since the stitch length of the stretchable polyester yarn was 90 to 97% of the stitch length of the spun yarn, the soft texture uniformity was particularly excellent.

  On the other hand, the knitted fabric of Comparative Example 1 had more fuzz since the stitch length was 5 mm or more. In addition, the knitted fabric of Comparative Example 2 was inferior in stretchability and elongation recovery rate because the yarn count of solvent-spun cellulose fibers was less than 60.

Claims (5)

It is a knitted fabric made of solvent-spun cellulose fiber and composed of a tengu knitting structure in which spun yarn with an English cotton count of 60-120 is used as the ground yarn and stretched polyester yarn is used as the accessory yarn. And
The knitted fabric is characterized in that stitch lengths of the spun yarn and the polyester yarn in the knitted fabric are both 1 mm or more and 5 mm or less, and an elongation recovery rate in the warp and weft directions of the knitted fabric is 80% or more. Earth.   The knitted fabric according to claim 1, wherein the solvent-spun cellulose fiber is processed to prevent fibrillation.   The knitted fabric according to claim 1 or 2, wherein a twist coefficient of the spun yarn is 4.0 or more.   The knitted fabric according to any one of claims 1 to 3, wherein a stitch length of the stretchable polyester yarn is 90 to 97% of a stitch length of the spun yarn.   The knitted fabric according to any one of claims 1 to 4, wherein the stretchable polyester yarn is made of polytrimethylene terephthalate fiber.