JPH0892836A - Twisted union yarn - Google Patents

Abstract

PURPOSE: To obtain a twisted union yarn suitable for worsted-toned woven fabrics with firm texture and lightweight feeling, by mutually twisting woolly separated monofilament yarn and multifilament yarn and/ or spun yarn. CONSTITUTION: Firstly, a medium-oriented polyester yarn (71d/48f) is subjected to relaxed heat treatment and arranged in parallel with a regular polyester yarn (75d/24f) and then subjected to false twisting into a sheath-core combined false-twisted yarn. Second, this combined false-twisted yarn and woolly separated monofilament yarn 10-30d in single fiber fineness are mutually twisted at 500-2000 (pref. 800-1800)T/m into a twisted union yarn. Next, these twisted union yarns are woven, as both warps and wefts, into a fabric, which is then scoured and subjected to relaxation, caustic reduction and dyeing finish to obtain a worsted-toned woven fabric.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a twisted yarn. More specifically, the present invention relates to a twisted yarn that gives elasticity and elasticity.

[0002]

2. Description of the Related Art Conventionally, various so-called differentiated yarns such as worsted and silky have been proposed, but the recent market needs have been to provide those that are light and have elasticity. ing. For example, a woven fabric using a composite crimped yarn obtained by subjecting two or more kinds of polyester multifilament yarns having a difference in elongation to entanglement and mixed fibers and then false twisting the fabric, while having a soft touch. It is well-received as a carded woven fabric that is firm and elastic and has excellent resilience, but recent market needs require fabrics that are even more elastic, elastic and light.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a twisted yarn that meets such market needs.

[0004]

That is, the present invention is characterized in that a monofilament yarn and a multifilament yarn and / or a spun yarn of Woolie separation having a single yarn denier of 10 to 30 denier are intertwisted. There is a twisted yarn.

The Woolly-separated monofilament yarn used in the present invention is obtained by aligning a plurality of monofilament yarns such as polyester and polyamide, false twisting them, and then separating them. In the present invention, a single yarn denier is 10 ~ 30
It is necessary to use a denier yarn, and if it is less than this, firmness and waist are poor, and if it exceeds this, a firmer texture is obtained rather than firmness and waist, and the characteristics of the yarn to be twisted and twisted are impaired. In addition, a simple monofilament yarn that is not Woolie splitting has a harder texture than stiffness and waist, and also impairs the characteristics of the yarn to be twisted. In particular, the present invention is particularly effective when twisted with a yarn excellent in soft texture, swelling and volume feeling as described below, but a simple monofilament yarn significantly impairs the texture.

As multifilament yarns and / or spun yarns which are cross-twisted with such monofilament yarns of Woolley separation, conventionally known bulky yarns such as multifilament yarn raw yarns and false twist textured yarns, and the longitudinal direction of single yarn filaments Containing one or more hollow parts that continuously extend along, a non-circular cross section of triangle to octagon, various stabilizers, matting agents, antistatic agents, and other known additives Polyester, cationic dyeable polyester, thick and thin yarn (the proportion of unstretched portion is such that unstretched portion having a length of about 2 to 20 mm is randomly distributed from 1 to 3 pieces per 10 cm of single filament, hollow or Non-circular cross-section, so-called semi-dal and full-dal yarns containing a matting agent such as titanium oxide are preferable, and spontaneous crimp type composite fiber (after joining two components with different shrinkability, heating and swelling) When the shrinkage is caused by three-dimensional crimping on the coil, the composite form is basically parallel type and eccentric sheath core type), high shrinkage yarn, ordinary split type ultrafine composite fiber, single yarn denier One or more combinations of 4 to 6 denier thick denier yarns (for example, thick denier hollow fibers), single yarn denier 1 to 4 denier and breaking elongation of 50% or less, initial tensile resistance after boiling water treatment 900 kg /
There are polyester multifilament yarns of mm ² or more, ultrafine fibers with a denier of 1 denier or less, different shrinkage mixed yarns, mixed yarns including spontaneously extensible yarns, and ordinary ring spun yarns and open-end spun yarns. There are yarns, spun and twisted yarns such as silospun and silofil, hollow spindle spun yarns, corespun yarns, etc., which can be appropriately selected according to the purpose, but especially a multifilament yarn excellent in soft texture, swelling and volume feeling. On the other hand, spun yarn is firm,
It is suitable because it tends to have a poor waist, and it is also effective to impart lightness.

As such an example, there is a composite textured yarn having a difference in yarn length due to a difference in elongation and / or a difference in contraction, for example, JP-A-1-124651 and JP-A-2-139440.
Of high orientation yarns and partially oriented yarns, such as the high orientation yarns and partially oriented yarns illustrated in Japanese Patent Laid-Open No. The composite crimped yarn obtained by aligning the yarns, supplying the yarns to the interlace nozzle, applying the mixed fiber entanglement, and performing the false twisting or the drawing false twisting process to impart the crimps has a worsted texture,
It is effective to give firmness, waist and lightness. Further, the so-called heterogeneous shrinkage mixed yarn and the yarn obtained by mixing the spontaneously extensible yarn have a silky texture, and it is effective to impart elasticity, firmness and lightness.

Furthermore, so-called thick and thin yarns and split type ultrafine composite fibers in which ultrafine fibers having a denier of single yarn after splitting of 0.5 denier or less are joined (basically, two types having different adhesiveness and solvent solubility) are used. A composite fiber made by combining the thermoplastic polymers described in 1. above is usually formed into a cloth or sheet, and then two kinds of polymers are separated or one of them is melted and peeled off to form a cloth or sheet made of ultrafine fibers. Although obtained, a composite fiber in which three or more types of thermoplastic polymers are combined may be used as necessary, and three or more types of polymers may be separated or one or more types may be dissolved and peeled. In addition, the split and ultra-thin composite fiber thick and thin yarn and single yarn denier are 1
Ultrafine fibers having a denier or less also have a soft texture and a swelling feeling, and are effective in imparting firmness, waist and lightness.

The number of twists to be intertwisted may be appropriately selected as desired, but is usually 500 to 2000 T / m, preferably 800 to 1800 T / m.

The twisted yarn of the present invention is usually effectively used as a woven fabric, but it may be knitted, or the twisted yarn 1
It may be used at 100% or may be mixed with other fiber yarns, and the mixing form may be appropriately selected according to the purpose such as mixing with warp yarns and / or weft yarns. Further, as the other fiber yarns to be mixed, those exemplified as the yarns to be twisted with the Woolly-separated monofilament yarn may be appropriately selected according to the purpose.

As for the structure of the woven fabric, there are flat, twill, satin and modified structures thereof, but the satin design is particularly preferable. The warp density is preferably 130 to 200 lines / inch, more preferably 150 to 180 lines / inch, and weft is 50 to 9 lines.
0 line / inch is preferable, and 60 to 80 is more preferable.
The number of lines / inch and the finish density are preferably 150 to 220 lines / inch, more preferably 170 to 200 lines / inch, and the weft is preferably 60 to 100 lines / inch, and more preferably 70 to 90 lines / inch. .

As a finishing step, after weaving, scouring and relaxing according to a conventional method, if necessary, division treatment or 10 to 35%
Alkali weight loss processing (may also be divided processing),
Then, it is dyed and finished. Further, a brushed material such as so-called peach skin may be imparted with, for example, an emery paper, a brush, a needle cloth, and various finishing processes such as embossing and printing may be performed. Further, finishing agents such as softening agents, water repellents and antistatic agents may be used.

[0013]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to the examples. Example 1 Woolly-separated monofilament yarn in which polyester monofilament yarn having a single denier of 20 denier is aligned and false-twisted, and a sheath-core structure false-twisted yarn of the following (A) and S800T / m I twisted in. (A) 71d / spun at a winding speed of 3250m / min
48f polyester multi-filament POY (Δn
No. 0.04) was subjected to non-contact relaxation heat treatment with a hollow heater under the following conditions, then aligned with 75d / 24f regular polyester multifilament yarn (Δn = 0.15) and false twisted under the following conditions. <Relaxation heat treatment condition> Heat treatment temperature: 150 ° C Heat treatment time: 0.5 sec Relax ratio: 38% <False twisting condition> Feed rate: 1.5% (feed rate difference 0%) False twist number: 2425T / M False twist Temperature: 160 ° C. The difference in yarn length of the obtained false-twisted sheath-core structure yarn was 20.0%.

The obtained twisted yarn is used as a warp yarn and a weft yarn,
The warp density is 150 yarns / inch, the weft yarn density is 67 yarns / inch, and a woven fabric with 5 satin (2 jumps) structure is made. 177 yarns / inch and weft density were finished to 82 yarns / inch for evaluation. Example 1 is firm,
It was a carded-like woven fabric that was rich in swelling and had a waist and lightness.

Comparative Example 1 The same twisted yarn as in Example 1 was prepared and evaluated, except that the monofilament yarn before false twisting was used in place of the Woolly-splitted monofilament yarn in Example 1. The comparative example had a hard texture and a poor swelling feeling.

Example 2 In Example 1, the monofilament yarns of Woolie separation in which 5-35 denier and single yarn denier were changed, and in Example 1 (A), POY was similarly aligned without relaxation heat treatment. And false twisting with a sheath-core structure false twisted yarn (difference of 5.0% in length) obtained by false twisting were carried out at S800 T / m. The obtained twisted yarn was evaluated in the same manner as in Example 1. As a result, when the denier of single yarn was 5 denier, firmness and waist were insufficient, and when it was 35 denier, the swelling feeling was poor due to the hard texture. In addition, in 10 denier and 30 denier, Example 1
Similarly, it was a carded-like woven fabric that also had elasticity, waist and lightness, but the bulging feeling was inferior to that of Example 1.

Example 3 As a component A, polyethylene terephthalate having ηsp / c = 0.73, and as a component B, polyethylene terephthalate was copolymerized with 15% by weight of polyethylene glycol having a molecular weight of 4000.
75 of 6-division type ultrafine composite fibers using /c=0.72)
The d / 72f polyester multifilament yarn stretched yarn and the Woolley monofilament monofilament yarn of Example 1 were used as S1.
Intertwisted at 600 T / m. The obtained twisted and mixed yarn was used as a warp and a weft, and the warp density was 150 yarns / inch and the weft density was 6
5 pieces satin (2 jumps) woven fabric with 7 pieces / inch, scouring relaxing, alkali weight loss (weight reduction rate 28%),
Then, it was dyed and finished to have a warp density of 177 yarns / inch and a weft yarn density of 82 yarns / inch. The B component of the 6-division type ultrafine composite fiber was completely removed, and the single yarn denier of the A component after the division was 0.15 denier. The fabric of Example 3 was a woven fabric having a soft texture which was firm, elastic and light.

Example 4 Polyethylene terephthalate having an intrinsic viscosity (η) of 0.65 as a low-shrinkage component yarn was spun from a spinneret at a spinning temperature of 290 ° C., and after cooling with an air flow from one direction perpendicular to the yarn, The unstretched yarn wound at a speed of 1500 m / min is heat-stretched, and then reheat-stretched to give 50
D / 36f yarn (boiling water shrinkage 6%, initial tensile resistance of original yarn 1400 kg / mm ² , initial tensile resistance after boiling water treatment 1
000 kg / mm ² ) was obtained. As a highly-shrinkable component yarn, a polyethylene terephthalate obtained by copolymerizing an intrinsic viscosity (η) of 0.75 and 2,2-bis {4- (2-hydroxyethoxy) phenyl} propane in an amount of 10 mol based on all glycol components is spun, After winding at a speed of 800 m / min, hot drawing is performed, and a yarn of 30d / 12f (contraction rate of boiling water 22%, initial tensile resistance of original yarn 1050 kg / mm ² , initial tensile resistance of 450 kg after boiling water treatment) / Mm ² ) was obtained. These yarns were interlaced and mixed, and the heterogeneous shrinkage mixed yarn having an entanglement number of 64 / m and a total boiling water shrinkage ratio of 21% and the monofilament yarn of Woolly splitting of Example 1 were twisted at S1600 T / m. The obtained twisted and twisted yarn was evaluated in the same manner as in Example 1, and as a result, it was a silky woven fabric having elasticity, waist and lightness.

[0019]

EFFECTS OF THE INVENTION According to the present invention, it is possible to provide a twisted and twisted yarn which gives elasticity and elasticity.

Claims (1)

[Claims] 1. A mixed-twisted yarn, wherein a monofilament yarn of Woolly splitting having a single yarn denier of 10 to 30 denier, a multifilament yarn and / or a spun yarn are twisted together.