JPH03113033A - Special crimp textured yarn - Google Patents

Abstract

PURPOSE:To obtain the subject textured yarn, having cottony hand effects with soft and bulky feeling and useful for sports-related clothes, etc., by using plural ultrafine filament yarns having respective specified single filament deniers. CONSTITUTION:The objective textured yarn which is textured yarn, obtained by paralleling (A) polyester-based multifilament yarn having >=50 total denier and 20-50% elongation and (B) polyester-based multifilament yarn having >=40% higher elongation than that of the component (A) and 60-150% elongation, interlacing the paralleled yarn and subjecting the interlaced yarn to false twist crimping and texturing and having the component (A) constructing a core part and the component (B) covering the outer peripheral part without wrapping thereof. Filaments constructing the aforementioned textured yarn are not fused at all and have no fluff. The single filaments of the components (B) and (A) respectively have 0.2-0.7 denier and 0.2-2.0 denier.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is a special fabric that is made of ultra-fine filament yarn and has a soft, bulky, cotton-like texture effect and a vivid color tone effect that is suitable for sports-related clothing, etc. This relates to crimped yarn.

(Prior Art) Conventionally, in the field of composite crimped yarns composed of at least two types of thermoplastic synthetic fiber filament yarns, one filament yarn is used as a core and the outer periphery is made up of filament yarns constituting the core. Composite textured yarns surrounded by filament yarns having a small single yarn denier and high elongation are known. However, in most composite textured yarns, the outer periphery of which is surrounded by filament yarns with a small denier and high elongation, the filament yarns constituting the core are When using an ultra-fine filament yarn whose yarn denier is clearly larger than the single yarn denier of the filament yarns constituting the outer circumference, the filament yarn denier 11 of the filament yarns constituting the outer circumference is 2 deniers or less. However, the soft feel of the ultra-fine filament yarn was not fully utilized (Japanese Patent Publication No. 19734/1981, etc.). Particularly from the viewpoint of later passability, tension, etc., those that fuse a part of the constituent filaments (Japanese Patent Publication No. 81-19734, Japanese Patent Publication No. E32-35493, etc.) are I couldn't take full advantage of the soft feel of filament yarn,
It also had the disadvantage of losing its bulkiness and giving it a rugged texture. In addition, by cutting and raising a part of the ultra-fine filament yarn that makes up the outer periphery, it is possible to obtain a spun yarn-like appearance and texture (Special Publication No. 61-3
(Japanese Patent Publication No. 0053, Japanese Patent Publication No. 61-37371, etc.) However, processed yarns having fluff are not preferred because they are generally difficult to unwind from a package and are not easy to handle. Furthermore, in many of these conventional composite processed yarns, as shown in Figure 2 of the attached drawings, the outer periphery of the filament yarn constituting the core is tightly wound with ultra-fine filament yarn in an alternating σ twist. Although a spun yarn-like texture was obtained, the bulkiness was lacking.

(Problems to be Solved by the Invention) The present invention solves the drawbacks of such conventional composite processed yarns, and its purpose is to create a cotton-like texture with a soft and bulky feel suitable for sports-related clothing. The purpose of the present invention is to provide a special crimped yarn that provides a vivid color tone effect.

(Means for solving problems) The present invention takes the following configuration in order to solve the above problems.

That is, the present invention provides a polyester multifilament yarn A having a total denier of 50 denier or more and an elongation of 20 to 50%, and a polyester multifilament yarn A having an elongation of 40% or more than the polyester multifilament yarn A. high and 6
0 to 150% polyester multifilament yarn B is aligned and intertwined and subjected to false twist crimp 1', with low elongation filaments forming the core and high elongation filaments forming the outer periphery. A crimped yarn that is coated without winding the crimped yarn, the filaments constituting the crimped yarn are not fused at all, are substantially free of fluff, and have a The single yarn denier of the constituent filaments is 0.2 to 0.
．． It is a special crimped yarn characterized in that the single filament denier of the filament constituting the core is 0.2 to 2.0 denier.

The special crimped yarn as described in 4-1 has a soft, bulky, cotton-like texture effect and a vivid color tone effect.

In the present invention, the total denier of the polyester multifilament yarn A made of low elongation filaments that ultimately constitutes the two core parts for the special crimp must be 50 denier or more. . If the total denier is less than 50 denier, the strength of the crimped yarn may be insufficient.
- minutes, making handling in subsequent processes difficult. The total denier of the polyester multifilament yarn A is preferably 300 deniers or less. This is because the soft, bulky, cotton-like texture of the special crimped yarn of the present invention is mainly due to the ultra-fine filaments that make up the outer periphery, and there is no need for a particularly large total denier for the filaments that make up the core. This is due to a number of reasons. Therefore, the total denier of the polyester multifilament yarn B, which is made up of high elongation filaments that ultimately make up the outer periphery of the special crimped yarn system of the present invention, is greater than that of the low elongation filaments that ultimately make up the core. If the total denier (50 to 300 deniers) of the polyester multifilament yarn A is larger than the total denier, a more favorable texture effect can be obtained.

In addition, in the special crimped yarn of the present invention, the polyester multifilament yarn A that ultimately constitutes the core must have an elongation of 20 to 50%, and the polyester yarn A that ultimately constitutes the outer periphery The polyester multifilament yarn B has an elongation 40% or more higher than the polyester multifilament yarn A constituting the core, and has an elongation of 60 to 150%.
%. If the elongation of the polyester multifilament yarn A that ultimately constitutes the core is less than 20%, the resulting crimped and pressed yarn will have too much tension and stiffness, resulting in a soft texture and bulky feel. At the same time, the operability of false twisting and crimp processing and the passability of subsequent processes become worse.

Furthermore, if the elongation of the polyester multifilament yarn A exceeds 50%, fusion will occur at the intertwined portion between the core and the outer periphery of the crimped yarn, resulting in a loss of soft and bulky texture. . −・Elongation of the polyester/stell multifilament yarn B that ultimately forms the outer periphery (high elongation)
If the difference between the elongation (low elongation) of the polyester multifilament yarn A that finally constitutes the core is less than 40%, the core and outer circumferential portion of the resulting crimped and pressed yarn can be distinguished. The texture of the yarn for crimping is different from that for general false twist crimping. It ends up becoming something that is not much different from thread. Furthermore, if the elongation of the polyester multifilament yarn B constituting the outer periphery is less than 60%, it will not be possible to obtain a bright color tone in the woven or knitted fabric, and if the elongation exceeds 150%, An intertwining part between the filaments forming the core and the outer periphery or a fused part occurs at the outer periphery, or the filaments forming the outer periphery are wound in an alternately twisted manner around the core. Detracts from the soft and bulky feel.

The single filament denier of the filament constituting the outer periphery of the special crimp system of the present invention must be 0.2 to 0.7 denier. More preferably, it is 0.2 to 0.5 denier. If the denier of each filament glue constituting the outer periphery is less than 0.2 denier, it is not only difficult to obtain a vivid color tone effect, but also the operability and post-processability of the false-twisted crimped pressed yarn are poor. Therefore, it is undesirable. Furthermore, it is not preferable if the yarn denier of the filaments constituting the outer circumferential portion exceeds 0.7 denier because a partial soft touch cannot be obtained. On the other hand, the single yarn denier of the filament constituting the core of the special crimping system is 062 to 2.
．． 0 denier, preferably 0.0 denier.
2 to 1.7 deniers, more preferably 0.5 to 1.7 deniers.
It is 6 denier.

If the single filament denier of the filament constituting the core is less than 0.2 denier, it is undesirable because the tension and elasticity of the filament will not be good during false twisting and crimping, and the ease of passing through the subsequent process will be poor. . Furthermore, if the single filament denier of the filament constituting the core exceeds 2.0 denier, the texture will emphasize tension and firmness, and the bulkiness will be impaired.

Furthermore, in the special crimped yarn of the present invention, the filament B does not wind (cover) the outer circumferential portion of the filament yarn A that constitutes the core of the crimped yarn. - Figure 1 is a typical side view of a special crimped yarn of the present invention, and Figure 2 is a side view of a conventional general composite crimped yarn. The most characteristic feature in Fig. 1 is that the filament yarn 2, which has strong crimp, covers the outer periphery of the filament yarn 1, which has only a very weak crimp, without winding it. , the interlacing process is performed before the false twist crimp process, and a part of the filament yarn 2 that makes up the outer periphery is randomly intertwined with the filament that makes up the core, and there is a gap between the core and the outer periphery. In addition, the constituent filaments must not be fused at all and have virtually no fuzz. It is characterized by

Next, a method for manufacturing the special crimped yarn of the present invention will be explained.

In the present invention, two types of polyester multifilament yarns with different elongations are used, and the polyester yarn used herein means, for example, that the main dicarboxylic acid component is terephthalic acid or its ester-forming derivative, and ethylene glycol , 1,4-butanediol, or an ester-forming derivative thereof as a main glycol component.

A part of this dicarboxylic acid component may be replaced with, for example, a monoalkali metal salt of 5-sulfoisophthalic acid, isophthalic acid, diphenyldicarboxylic acid, adipic acid, diphenyldicarboxylic acid, adipic acid, sebacic acid, or P-oxybenzoic acid. Also, a part of the glycol component may be replaced with a dihydric alcohol such as diethylcyclohexane.

In addition, polyalkylene oxide compounds such as polyethylene glycol can be added to polyester as the L component.
Antistatic properties may be imparted by copolymerizing 7% or more of F. In particular, Glyfur represented by the above general formula may be copolymerized at a ratio of 1 to 10% by weight based on the polyester. It is preferable to make it easy to dye by.

HO(CK H2,0)m R-0(C,H2eO)H
(The above R is a divalent aliphatic hydrocarbon group having 4 to 20 carbon atoms,
K and Q are the same or different integers of 2 to 4, m and n are the same or different integers, and m+n≦10. ) It is also possible to make a modified polyester by blending other polymers, and furthermore, it may be mixed with other polymers, such as color preventive agents, catalysts,
A matting agent or the like can be used as appropriate.

In order to obtain the special crimped yarn of the present invention, the same or different polyester undrawn multifilament yarn obtained by melt-spinning the polyester as described above is appropriately stretched, and the core portion is finally The elongation, single yarn denier, etc. of the filament yarn A that constitutes the filament yarn A and the filament yarn B that ultimately constitutes the outer peripheral portion may be adjusted and used, but polyester that is spun at a spinning speed of less than 2000 m/win System undrawn multifilament yarn and 200
The polyester highly oriented undrawn multifilament yarn spun at a spinning speed of 0 to 4000 m/win may be stretched simultaneously in a stretched state to adjust the elongation, 11-denier, etc. In some cases, the entangling treatment may be performed after or at the same time as the drawing.However, more preferably, the polyester multifilament yarn A constituting the core has a torque denier of 50 deniers or less; - A polyester drawn multifilament yarn having a denier of 0.2 to 2.0 denier and an elongation of 20 to 50% is used, and the polyester multifilament yarn B constituting the outer peripheral part has a 2000% elongation. ~
The tp is spun at a spinning speed of 4000 m/mln, the yarn denier is 0.2 to 0.7 denier, and the elongation is 60
It is preferable to use a polyester-based highly oriented unstretched multifilament yarn having a weight of 150%. When the above combination of two types of polyester multifilament yarns is used, the highly oriented multifilament yarns constituting the outer periphery have good heat setting properties, so the covering structure is stabilized, and
The dyeability is also good, and furthermore, it does not easily fuse on a heat set plate under normal false twist and crimp processing conditions.

When two types of undrawn multifilament yarns with different spinning speeds are aligned and drawn and the medium thread denier, elongation, etc. are adjusted, the mixed fiber multifilament yarn is wound into a single pirn-shaped package. However, in other cases, the polyester multifilament yarn A that ultimately constitutes the core portion and the polyester multifilament yarn B that ultimately constitutes the outer peripheral portion are obtained separately.

Special crimping of the present invention - [To obtain a yarn, a filament entangling nozzle is required before the feed roller of a conventional false twisting machine (two types of undrawn multifilament yarns with different spinning speeds are drawn together and drawn). In this case, it is not necessary if the interlacing treatment is performed using the stretching machine L-.

When two types of multifilament yarns with different spinning speeds are aligned and drawn, one package is used. Filament thread B and 2
It is preferable that the multifilament yarns are unwound separately from each bar and seven cages, passed through the same wire guide, and subjected to an interlacing treatment using a filament interlacing nozzle to give a degree of entanglement of 20 to 80 yarns/m. Note that the degree of entanglement is measured as follows. When the entangled mixed fiber yarn is floated on water in a container, the unentangled part opens to several times the thickness, while the intertwined point does not open. Read the numbers visually. The entangled mixed fiber yarn is then fed from a feed roller to a false twisting zone, subjected to false twisting pressure, and set on a heat setting plate with a surface temperature of 160 to 190°C, thereby becoming a composite structure yarn. Delivery (
After going through a caller, it is rolled up into a winding package.

At the time of winding up, if desired, the film may be treated with an oil agent using an oiling roller. Here, the temporary W'A position in the false-twisting zone can be any device that has a false-twisting function, in addition to a pin spindle false-twisting device, an external friction false-twisting device, and an internal friction false-twisting device. Can be used. However, the special crimping process of the present invention [which is a feature of the yarn in order to form a yarn in which the outer peripheral part of the polyester multifilament yarn A constituting the core part is covered with the polyester multifilament yarn B without winding it] , T2 (false twist untwisted crab g) and T,
The ratio T2/T of (false twist heated tension crab g) is the number of false twists:
7. Adjust the T/m 1 over feed @ 2% etc. accordingly.

The special crimping of the present invention [the yarn produces an excellent texture effect even when knitting and weaving without additional twisting, but
/m additional twist to eliminate looseness and knit/weave,
Furthermore, it has a cotton-like texture, which is preferable.

(Example 1) Example 1 A crimped yarn is obtained under the following conditions.

(A) Thread usage (1) Filament yarn that will eventually make up the core; polyethylene terephthalate drawn multifilament yarn 75 den/48 f-th elongation 35%■ Filament yarn that will eventually make up the outer periphery; polyethylene terephthalate high Oriented unstretched multifilament yarn 120den/218f, elongation 110% CB) Entanglement treatment (1) - Simultaneously supplying the above two types of multifilament yarns to a boat fishing interlace nozzle (fluid pressure 3 kg/
(crit) ■ Degree of entanglement 60 pieces/m (C) Pressure for false twisting and crimp (1) Model used Tamabishiju LST false twisting machine ■ Acceleration [speed 100 m/m1n (3) Number of rotations of false twisting spindle 2GO ,00Orpm
(4 Heat cent plate surface temperature 170℃ (5) Overfeed amount -2%) (When the processed yarn obtained was observed under a microscope, it was found that the outer periphery of the filament constituting the core had only weak crimp. The strongly crimped filaments covered the film without winding, and the constituent filaments had no fused portions and were substantially free of fuzz.

The crimped yarn was additionally twisted at 300 T/m, and the warp density was 7.
When woven into a fill structure with 9 threads of 72.54 cm and a weft density of 60 threads/2.54 cm and dyed using a conventional method, the result is a cotton-like texture with a soft and bulky feel, as well as a fabric using conventional ultra-fine filament threads. It had a vivid color tone effect not seen in other countries. In addition, the false twisting process operability and the post-L passability were also good.

Table 1 shows the filament threads that will eventually form the core,
Comparative Examples 1 to 1 in which the filament yarn that finally constitutes the outer peripheral portion was changed in various ways and the same false twisting and crimp addition 1 as in Example 1 was performed.
Indicates 0. The filament yarn used that will eventually form the core is polyethylene terephthalate drawn multifilament yarn, and the filament yarn that will ultimately form the outer periphery will have its elongation increased by drawing polyethylene terephthalate highly oriented undrawn yarn or chain yarn. It is a multifilament yarn with adjusted The spindle rotation speed during false twisting and crimp processing, warp and weft density during weaving, etc. are adjusted as appropriate.

Example 2 Under the following conditions, a false twisted and crimped yarn is obtained.

(A) Thread usage (1) Filament yarn that will ultimately form the core; polyethylene terephthalate drawn multifilament yarn 150 den/98 flll elongation 35% ■ Filament yarn that will ultimately form the outer periphery; polyethylene terephthalate highly oriented Undrawn multifilament yarn 210 den/432 fit Elongation 110%C
B) Interlacing treatment (1) Simultaneously supplying the two types of multifilament yarns to the interlace nozzle (fluid pressure 3 kg/cri
l ) ■ Degree of entanglement 50 pieces/m (C) False twist crimp I- (1) Model used Mitsubishi Heavy Industries LST false twisting machine ■ Processing speed 80 m/win (3) False twist spindle rotation speed 144,000 rp
n(4) Heat set plate surface temperature 180℃ ■ Overfeed clear -2%
The yarn had a covering structure similar to Example 1, and there were no fused portions or fuzz. 100OT/m for the crimped yarn
When woven on a gabarb weave with a warp density of 55 threads/2.54cm and a weft thread density of 50 threads/2.54cm, and dyed, it has a soft and bulky texture effect and a vivid color tone effect. was. In addition, some of the filaments constituting the outer circumferential portion of the crimped press yarn were randomly intertwined with the filaments constituting the core, and the passage property was good later on.

Table 1 shows Comparative Example 11°■2 in which the same yarns as in Example 2 were used, but the entangling treatment and the surface temperature of the heat cerat board were changed.

Margin below (Effects of the Invention) The special crimped 1-system of the present invention has a single filament denier of 02 to 0.7 denier of the filament constituting the outer peripheral part of the crimped yarn, and the crimped yarn Of the filament that makes up the core of! I3. Ultra-fine filament yarn with a yarn denier of 0.2 to 2.0 denier is used. Moreover, in the special crimped yarn of the present invention, the filament yarn constituting the outer periphery covers the core without being wound.
Furthermore, since the filaments constituting the crimped and pressed yarn are not fused at all, it has a cotton-like texture with a soft and bulky feel. The filament yarn constituting the outer peripheral part of the special crimped yarn of the present invention is 60%
It has a higher elongation of ~150% than ordinary drawn filament yarns, and provides vivid color effects even though it is an ultra-fine yarn. Therefore, the special crimped yarn of the present invention is a suitable material for sports-related clothing. Furthermore, some of the filaments constituting the outer peripheral part of the special crimped yarn of the present invention are randomly intertwined with the filaments constituting the core, and the filaments constituting the crimped yarn are substantially Since it does not have fuzz, it has good passability in subsequent processes.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the yarn form of the special crimped yarn of the present invention. FIG. 2 is an explanatory diagram of the yarn form of a conventional alternately twisted composite crimped yarn. ■・・・Filament that makes up the core

Claims (1)

[Claims] Total denier is 50 denier or more and elongation is 2
Polyester multifilament yarn A having an elongation of 0 to 50% and polyester multifilament yarn A having the elongation
The polyester multifilament yarn B, which is 40% or more higher and 60 to 150% higher than the A crimped yarn whose outer periphery is covered with elongated filaments without winding, and the filaments constituting the crimped yarn are not fused at all and are substantially free of fuzz. The single yarn denier of the filament constituting the outer peripheral portion is 0.2 to 0.7 denier, and the single yarn denier of the filament constituting the core portion is 0.2 to 2.0.
A special crimped yarn characterized by its denier.