KR880000474B1 - Polyester compound twisting yarn's making method - Google Patents

Abstract

Titled polyester yarns were manufactured by interlacing and false twisting the non-drawn polyester yarn which has bifringence rate 20X10-3 -50X10-3 and drawn one which has bifringence rate >70X10-3 at the temperature 215-235≰C. The obtained yarns showed an improved weaving ability and a smooth feel.

Description

Manufacturing method of polyester composite twisted yarn

1 is a schematic diagram of a manufacturing apparatus used in the present invention.

2 is a yarn produced by the present invention.

* Explanation of symbols for main parts of the drawings

1: Core supplier package 2: Effect supplier package

3: tension control device 4: fluid communication device

5: 1st supply roller 6: 1st heater

7: cooling plate 8: flammable spindle

9: 2nd supply roller 10: 2nd heater

11: 3rd supply roller 12: Finished product package

A: Effector B: Core History

According to the present invention, two kinds of polyester multifilaments having different birefringences are formed by forming a entanglement by fluid entanglement at storage force with a tension control device before combustible operation, thereby adjusting the softening and temperature during the combusting process as an unspecified adverb. The present invention relates to a method for manufacturing polyester composite twisted yarn, such as natural fibers, which can improve the weaving efficiency even if it is hard.

Conventionally, there are air jet method and multi-flammable method for obtaining Uljo blended yarn, but air jet method has to raise the pressure of used air to increase bulkiness, so the manufacturing cost is high. In addition, the processing yarn showed a spinning yarn-like appearance, but there was a defect in that it was inconvenient to wear when it was welfare because of its rough touch.

In addition, in the conventional composite combustion method, since two thermoplastic multifilaments are treated under normal combustion processing conditions and fluid entangled, the central yarn and the effector are easily separated in the post-process, and the non-uniform entanglement causes cutting during weaving. There was a drawback to lowering the weaving utilization rate.

The present invention solves this problem and will be described in detail below.

로 하고 가공온도를 저 배향도의 멀티 필라멘트사가 미세 융착되는 온도, 즉 215℃-235℃로 하여 2종의 멀티 필라멘트를 융착시킴으로써, 무호부에 의한 제직성이 양호한 울리조 혼섬사를 얻을 수 있었다.The high-speed spinning non-twisted yarn with birefringence of 20 × 10 ^{-3 to} 50 × 10 ^-3 and the stretched yarn with birefringence of 70 × 10 ^-3 or more, while maintaining the tension of the supplier at the tension of 2-10g by the tension control device before twisting, After twisting two yarns with the entanglement device,

By fusion of two kinds of multifilaments at a temperature at which the multifilament yarns of low orientation degree were fused finely, that is, at 215 ° C to 235 ° C, a woolly blended yarn having good weaving property by no-damage was obtained.

In the present invention, if the tension of the supplier exceeds 2-10g, it is not possible to obtain a uniform tufted yarn, after which the core yarn and the effect yarn are separated and the weaving efficiency is lowered.

일 경우, 권축효과가 현격이 떨어져 촉감이 거칠은 결점이 있고 연수가

일 경우 가연시 단사가 절사되어 보푸레기가 다량 발생되어 후 공정에서 해사불량으로 인한 절사가 발생되어 제직능률이 저하된다. 또한 가공온도가 T＜215℃일 경우에는 미세융착 효과가 없어 중심사와 효과사가 쉽게 분리되고 무호부에 의한 제직시 경사핌 현상으로 절사가 다량발생되어 제직능률이 저하된다.In addition, the number of years

In this case, the crimping effect is greatly reduced, and the touch is rough.

In case of cutting, single yarn is cut during combustion, and a large amount of lint is generated. In addition, when the processing temperature is T <215 ℃, there is no microfusion effect, so the core yarn and the effect yarn are easily separated, and the weaving efficiency decreases due to the large amount of cuts caused by the warp of weaving due to the abrasion.

On the other hand, when the processing temperature exceeds T235 ℃, there is a drawback that the fusion is excessive and the touch is rough and the wear is bad.

EXAMPLE

Polyester multifilament yarn 120 ^D / 36 ^F with a ball refractive index of 25 × 10 ^-3 as the center yarn (1) by means of the apparatus of FIG. 1 and a polyester mulfilament 75 ^D / 72 with a ball refractive index of 85 × 10 ^{-3 It} was manufactured on the following conditions as ^F as an effect yarn (2).

next

(1) Tension of supply thread: 5g (4) Thread speed: 245m / min

(2) First heater temperature: 220 ℃ (5) Drawing ratio: 1.011

(3) Combustible water: 1750 TPM (Z lead) (6) Fluid handling pressure: 1.5Kg / cm ²

Table 1 shows the results of weaving with RPM 500 in the water jet loom using the light and weft yarns of the auxiliaries prepared under the above conditions.

here,

Peeling property: KSK 0501 (BRUSH & SPONGE method)

Wear resistance: KSK 0604

Claims (1)

A composite twisted yarn was entangled with a fluid using a polyester undrawn yarn having a birefringence of 20 × 10 ^{−3 to} 50 × 10 ⁻³ and a polyester drawn yarn having a birefringence of 70 × 10 ⁻³ or more. A method for producing a polyester complex lead acid, characterized in that the production is carried out under the following processing conditions. next (A) Order of supplier's team: 2-10g (B) Combustible water:

(Where D is denier) (C) Treatment temperature: 215 ℃ -235 ℃

Images