JPS61239032A - Spun like false twisted composite yarn - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is composed of a core yarn and sheath yarns forming a single-wrap portion and a triple-wrap portion around the core yarn, and exhibits a spun-tuned feel. Concerning spun-like false twisted double gold thread.

(Conventional technology) A sheath yarn is wrapped around a core yarn by forming alternating single-wrap portions and triple-wrap portions to create a slab appearance.

False-twisted composite yarns, which give a strongly twisted texture and are characterized by a thin ÷Φ thin texture, have been well known for a long time.

False-twisted composite yarns have been widely used due to their favorable characteristics, but many originally used polyester filaments as core yarns and polyester filaments as sheath yarns, making it difficult to use linen filaments due to the yarn structure in which these yarns are tightly entwined. It emphasized the crisp, strong-twisted texture that is said to be present. This feel does not change even if the combination of filaments of the core yarn and sheath yarn or the false twisting conditions are changed, and no matter what use this yarn is used for, the product will only have a monotonous taste. There wasn't.

For this reason, there was a strong demand for a false-twisted composite yarn that takes advantage of the slab appearance and has a soft, smooth texture.

For this reason, attempts have been made to use polyester filament as the core yarn and short fiber spun yarns such as A yarn and Esthe/L/spun yarn for the sheath yarn, but the unwinding tension of the spun yarn on the false twisting machine The false twisting process was not possible due to the high tension, and there was a lot of fluff, which caused operational problems and was not successful.

(Problems to be Solved by the Invention) The present invention is a spun-like false twisted double gold thread in which a sheath thread is wound around a core thread by forming alternating single-wound parts and triple-wound parts. The slub appearance, which is one of the characteristics of the false-twisted composite yarn, is taken advantage of, and the other characteristic, the V-shaped feel, is eliminated to give it a soft and smooth texture. The present invention aims to obtain a spun-like false twisted composite gold thread that also has excellent slab U entanglement properties.

(Means for Solving the Problems) The yarn for the above purpose is a spun-like false twisted double gold yarn in which a core yarn is wound with a sheath yarn alternately forming a single winding part and a triple winding part. The sheath yarn is a composite spun yarn in which the filament and short fibers are mixed at a ratio of 11 to 80 mm, and the winding direction of the single winding part of the sheath yarn is This problem is solved by a spun-like false twisted composite yarn characterized in that the twist direction is the same as the twist direction of the composite spun yarn.

Here, the composite spun yarn intended as the sheath yarn is:

A filament and short fibers are mixed together, and the blending rate of the short fibers is 40 to 80% by weight.
This is to give a false-twisted composite yarn that can provide a like feel as disclosed in Japanese Patent No. 4-13537. The filament may be made of any type of fiber as long as it is used for clothing, but polyester fiber is particularly preferred since it provides a setting effect. And the fineness of the filament is 2~
5 denier is preferred. If the fineness is less than 2 denier, it will not have firmness, and if it exceeds 5 denier, it will lose its softness.

In addition, if the short fiber material is also used for clothing,
Any type of fiber may be used, but polyester fiber is particularly preferred since it provides a setting effect and improves unwinding. In addition, cotton fibers are preferable because they provide a texture effect. Furthermore, it is preferable that the short fiber denier p be less than 2 denier because if it exceeds 2 denier/L/, uniform composite spun yarn cannot be obtained. shi, 80
If it exceeds %, there will be no stiffness and there will be a lot of fluff, which will cause problems in workability during processing and false twisting, so it is preferable to keep it within the above range.

In addition, if the ratio of the number of short fibers to the number of filaments in any yarn cross section is less than 2, the soft spun feel will be lost.
If it exceeds this range, it is easy to lose the texture, so it is preferable to keep it within the above range.

The twist coefficient of the composite spun yarn mentioned above is 3 in the 1 inch system.
-4 is preferred. This is to maintain a span-like texture.

On the other hand, the material of the core thread is preferably synthetic fiber, and multifilament thread of polyester fiber is particularly preferable.

Next, a method for manufacturing spun-like false-twisted composite gold yarn using the composite spun yarn as a sheath yarn will be described.

Chitoyoshi is not restricted by the method below.

FIG. 1 shows an apparatus for producing spun-like false twisted double gold thread according to the present invention. In the figure, the core yarn l is fed by a core yarn feed loaf 3 through a guide 12 to a false twisting area, and is fed to a heater 5. It is supplied to the false twister 6.

On the other hand, the sheath yarn 2 is fed to the sheath yarn feed roller 4 which rotates at a higher surface speed than the core yarn feed loaf 3, and passes through the sheath yarn feeding guide 13.

It is wound around the core thread 1 which runs while being heated. Next, the false twisted composite yarn composed of the core yarn and the sheath yarn forming a single winding part and a triple winding part with respect to the core yarn passes through a delivery roller 7.

Second heater8. It passes through the second delivery loaf 9 and is rolled up into a package 10 by a winding board. Here, it is preferable to select L (fl) as 301II≦L≦1000 (codfish).

In the above manufacturing method, at least the composite spun yarn is used as the sheath yarn, but the winding direction of the single wrapping portion of the sheath yarn must be the same direction as the twisting direction of the composite spun yarn.

The winding direction of the single-wound portion of the sheath yarn is opposite to the twisting direction of the composite spun yarn.

This is because the length of the slab is short and does not look good, and the entanglement of the core yarn and sheath yarn is also poor.

(Function) Although the present invention has a structure in which the sheath yarn is tightly twisted around the core yarn, since the sheath yarn is a composite spun yarn with filaments containing short fibers, it is soft due to the effect of fluff. It has a span-like feel. Furthermore, the lug appearance has not been lost due to this structure.

(Examples) Next, the configuration and effects of the present invention will be explained using examples, but the present invention is not limited by the following examples.

Example 1 Using the apparatus shown in Fig. 1, a polyester μm00 denny 1v36 filament yarn was used as the core yarn 1, and a polyester/L/30 denny A/18 filament yarn was used as the sheath yarn 2 using a voltage application type opening device. 11 poly:r-sf in opened and opened state
lvQ, 7 denny A/, 321E1g cut fiber yarn and layered twist direction Z, 80 count composite spun yarn obtained by twisting and winding with twist number 1250T/M, spindle rotation 124 to 00 rpin, the number of twists in the false twisting direction is S
-2,284T/M, heater temperature 200℃ for the first heater
, second heater 210℃, sheath yarn feed amount F 83.5
To, the distance from the core yarn path to the yarn feeding guide of the sheath yarn was set to 650, and the false twisted composite yarn was piled.

Although the false-twisted double gold thread had a slab appearance consisting of a double layer and a triple layer structure, it did not have the crisp feel of linen and had a soft spun-like feel.

The fineness of the monofilament in any yarn cross section of the composite spun yarn used as the sheath yarn is 1.6 denier, the number of filaments is 18%, the number of short fibers is 52, and the ratio of the number of short fibers to the number of monofilaments is 2. It was 9. Further, the blending ratio of short fibers in the composite spun yarn was 50%.

Comparative Example 19 A false twisted composite yarn was produced under the same conditions as in the example except that polyester 75 denier/I/36 filament yarn was used as the sheath yarn using the same apparatus 1tt in FIG. 1 as in the example.

The false-twisted composite yarn had a slab appearance consisting of a double-wound and triple-wound structure, and was rich in strong twist-like sharp taste and texture.

Incidentally, the sheath yarn feed amount F is obtained as follows.

(Effect of the invention) A spun-like false-twisted composite gold thread in which a sheath thread is wound around a core yarn by forming alternately single-wound portions and triple-wound portions, and features of the spun-like false-twisted composite gold thread. While exhibiting the appearance of a slab, which is one of the most popular types, a soft spun-like feel that was previously unobtainable was obtained.

In addition, from a production standpoint, the unwinding tension of the sheath yarn on the machine was stable, the tension was comparable to that of filament, the threading properties were good, and very stable operability was obtained with little fluff.

[Brief explanation of the drawing]

FIG. 1 is an example of an apparatus for manufacturing spun-like false twisted double gold yarn according to the present invention, in which a sheath yarn is wound around a core yarn to form a single-wound part and a triple-wound part. L: Distance from core yarn path to sheath yarn feeding guide 1: Core yarn 2: Sheath yarn 3: Core yarn feed roller 4: Sheath yarn feed roller 5: Heater 6: False twister 7: Delivery loaf 8: No. 2 heater 9: 2nd delivery loaf 10: package

Claims (1)

[Scope of Claims] A spun-like false twisted composite yarn in which a sheath yarn is wound around a core yarn by forming alternating single-wound portions and triple-wound portions, and the sheath yarn consists of filaments and short fibers. It is a composite spun yarn in which the blend ratio of short fibers is 40 to 80% by weight, and the winding direction of the single wrapping part of the sheath yarn is the same direction as the twisting direction of the composite spun yarn. A spun-like false twisted composite yarn characterized by