KR19990065006A - A method for producing a composite yarn excellent in surface texture - Google Patents

Abstract

Two kinds of polyester filaments having different non-water shrinkage ratios are subjected to twist processing, and the twist yarns are passed through a heater in a normal winding state without passing through a heater in a twisted region,

Even after the composite yarn is formed by the twisting process, the two different yarns constituting the composite yarn have different crimps and shrinkage rates, and the surface crimping effect and the shrinking effect are simultaneously exhibited in the knitted fabric, And the surface tactile feel simultaneously.

In addition, the cored bar is excellent in elasticity and repulsion on the knitted fabric because no heat is applied to the wasted area and no substantial crimp is imparted thereto. In the case of the high-

And a relaxation rate of 30% or more and a relaxation heat treatment at 180 to 200 ° C to improve the dyeability,

It is possible to obtain a uniform knitted fabric which has no staining difference with yarn and does not cause uneven dyeing

All. In addition, since the manufactured composite false wares have an entangled part,

Excellent passability.

Description

A method for producing a composite yarn excellent in surface texture

The present invention relates to a surface crimping effect and a shrinking effect at the same time,

The present invention relates to a method for producing a composite yarn satisfying both volume feeling and soft surface feel such as silk.

The polyester fiber is subjected to a twist processing to crimp the individual fibers such as natural wool fibers

a large number of studies have been carried out to express the texture of the waste tank by applying a crimp. However, in order to obtain a smooth surface touch while simultaneously developing polyester fiber into a consumable tank

The fineness of the single filament filament should be not more than 1.5 denier, but in this case,

And there is a drawback that the elasticity is insufficient. In addition, for the repulsion and bulky feeling,

If the fineness of the mentions is increased, the desired effect can not be obtained, such as a rough surface feeling

All.

In addition, the filament yarn and the filament yarn,

However, in order to satisfy texture and process stability at the same time,

Respectively.

With the examination of the Taejimdo filament company, the Segwoong complex filament yarn

Produce a consumable fabric that meets soft surface feel, resilience and elasticity.

Japanese Patent Application Laid-Open No. 54-101946, Japanese Patent Application Laid-Open No. 63-275734, etc.

have. However, the composite false wares produced by this method have a soft surface feel

One could not expect the appearance and feel of a silk like this shrinkage fiber.

An object of the present invention is to provide a composite yarn which simultaneously exhibits both the surface crimp effect and the shrinking effect and simultaneously satisfies both the voluminousness of the consumable tank and the soft surface feeling such as silk on the knitted fabric.

.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a schematic process diagram of the present invention; Fig.

Description of the Related Art

1: Highly oriented polyester unstretched yarn (normal yarn)

2: High shrinkage polyester spinning machine (corn barrel)

3: Feed roller 4: Relaxation heat treatment device

5: Flammable heater 6: Flammable device

7: Fluid interlock initiator 8: Winding device

In order to achieve the above object, in the present invention, two kinds of polyester having different non-

In twisting le filament, a high shrinkage polyester having a non-shrinkage ratio of 25% or more

The filament winding shaft (hereinafter referred to as the stator housing) is connected to the heater outlet

A typical highly oriented polyester filament undrawn yarn having a non-water shrinkage ratio of 4 to 10%

(Hereinafter referred to as "normal"), subjected to flammability treatment,

.

In the case of a high-stiffness housing, it is not necessary to go through the heater in the burning area,

The crimpability and the shrinkage ratio of the two different yarns constituting the composite yarn become different from each other even after the composite yarn is formed. Therefore, the surface crimp effect and the shrinking effect are simultaneously manifested in the warp knit fabric, so that it is possible to manufacture a composite yarn satisfying the volume feeling of the waste tank and the soft surface feeling such as silk.

The corrugated housing is not subjected to heat in the smoothing area, resulting in a body woven fabric preserving thermal stress. follow

It is able to shrink by expressing enough thermal stress in the western knitted fabric,

It can have a surface touch. In addition, since substantially no crimp is imparted,

Elasticity and repulsion. The fabricated composite false wares have an entangled part,

Are well mixed without forming a substantially separated two-layer structure,

Shape stability and process passability.

The high content of isophthalic acid copolymer is higher than that of general polyester yarn, and when it is mixed with general polyester yarn and dyed with disperse dye, it becomes difficult to dye uniformly because of high density fiber. On the other hand, the heat treatment of the highly oriented non-drawn filaments changes the amorphous region to a dense structure to lower the dyeing rate, but as the heat treatment progresses, the molecular chains of the amorphous region relax and the portions with low filling density increase, The dyeability is not lowered even after stretching. According to the present invention, the dyeability is improved by controlling the relaxation rate and the heat treatment temperature, and a homogeneous knitted fabric having no staining difference with the host bean paste and having no staining is obtained.

When the relaxation rate is less than 30%, the heat treatment does not proceed in a sufficient relaxed state,

Was insufficient and the concentration of hydrochloric acid was insufficient. The higher the heat treatment temperature,

A range in which heat aging and melt adhesion do not occur is suitable.

In the present invention, the feel and appearance of the fabric were measured by the following method.

(1) The feel and appearance of the fabric

It is difficult to quantify with sensual evaluation.

The subjective evaluation result of the person was judged based on the following criteria.

?: 9 or more,?: 6 to 8,?: 3 to 5, X: 2 or less

Hereinafter, the present invention will be described in detail based on Examples and Comparative Examples.

Example 1

A polyester filament drawn yarn 60de / 15f having a non-shrinkage ratio of 25% prepared by melt-spinning a polyester polymer obtained by copolymerizing isophthalic acid in an amount of 9.0 mol%, and a normal polyester filament having a non-water shrinkage ratio of 8% Was subjected to flammability processing in accordance with the process of FIG. 1 to prepare a composite yarn.

At this time, the conditions for flammable processing are as follows.

· Completion rate: 30%

· Relaxation heat treatment temperature: 200 ° C

· Flammable heater temperature: 180 ℃, flammable T / M: 1850 T / M, flammable supply rate: -30 ~ 30%

The above-mentioned compounding yarn was produced at an Italian twisting machine at a rate of 1,200 T / M and an inclined number of 6840

The fabric was weaved with weaving density of 67 bands / inch, and dyeing and processing were carried out.

Example 2

The relaxation heat treatment was carried out in the same manner as in Example 1, except that the heat treatment temperature was 180 ° C.

Comparative Example 1

The relaxation heat treatment was carried out in the same manner as in Example 1, except that the heat treatment temperature was 170 占 폚.

Comparative Example 2

The relaxation heat treatment was carried out in the same manner as in Example 1 except that the heat treatment temperature was 210 ° C.

Comparative Example 3

The same procedure as in Example 1 was carried out except that the relaxation rate was 20%.

Comparative Example 4

The same procedure as in Example 1 was carried out except that a relaxation heat treatment process was not performed.

Comparative Example 5

Polyester fiber filament drawn yarn 60de / 15f having a non-water shrinkage ratio of 25% was copolymerized with isophthalic acid in an amount of 9.0 mol%

60de / 15f was used as the feed tank.

Comparative Example 6

Example 2 was carried out in the same manner as in Example 1, except that two kinds of feed yarns were joined before the heater introduction portion in the false region, and then passed through a false heater and subjected to a false twisting process.

Table 1 shows the results of the examples and comparative examples.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, the surface crimp effect and the shrinking effect can be simultaneously exhibited, so that the volume feeling of the consumable tank and the soft surface feeling such as silk are simultaneously satisfied on the knitted fabric and the uniform composite yarn without stain- Can be manufactured.

Claims (2)

In the twisting process of two kinds of polyester filaments having different non-water shrinkage ratios, the polyester stretch yarn having a high non-water shrinkage ratio has a non- Wherein the polyester filament is subjected to a false twisting process after being subjected to a false twisting process with a polyester filament undrawn yarn having a low ratio. The method according to claim 1, Polyester filament undrawn yarn with low non-wet shrinkage percentage is not less than 30% Characterized in that the dyeing property is improved by relaxation heat treatment at a relaxation rate of 180 to 200 ° C A method for producing a polyester filament composite yarn.