KR870000879B1 - Nylon filament finished yarn - Google Patents

Abstract

Novel filament finished yarn is produced from twist threading of two unstretched nylon filament having different stretchness. Core and outer bulky part is rough and coarse to the feel. Core part in the prepg. filament yarn is 15-40% of the total yarn number. Twist threading temp. is 175-195≰C. Stretchness of high stretch yarn is 330 ± 30%, of low stretch yarn is 20-30% lower than high yarn. Number of twist per unit length is 1800-2400 TPM.

Description

Nylon filament yarn

1 is an enlarged side view of a conventional general nylon filament yarn

2 is an enlarged photograph of a cross section of a conventional general nylon filament yarn

Figure 3 is an enlarged side view of the nylon filament yarn of the present invention

4 is an enlarged photograph of a cross section of a nylon filament processed yarn according to the present invention.

The present invention relates to a nylon filament processed yarn having a rough feel and a spun yarn appearance by combining two nylon unstretched filaments of different elongation to form a screening and an external bulky part.

)는 제직시 제직장력에 의해 벌키성이 현저하게 저하되므로 직물표면이 매끄러워져서 벌키성, 까칠까칠한 성질을 요구하는 특별한 용도의 직물에는 사용할 수 없는 결점이 있었다. 또한, 에어젯트(Air Jet)를 이용한 가공방법이 있으나 이 방법으로 제조된 나일론 가공사로 직물을 제직할 경우에는 루프(loop)반으로 인하여 염색할때에 직물의 표면이 균일하지 못해 염색상태가 불량한 경우가 있는등 품질이 열등하였다.Conventional general false twisted yarn

) Has a drawback that cannot be used for special-purpose fabrics that require bulkiness and roughness because the surface of the fabric is smoothly degraded by weaving tension during weaving. In addition, there is a processing method using an air jet, but when weaving the fabric with a nylon processed yarn manufactured by this method, the surface of the fabric is not uniform when dyed due to the loop half, so that the dyeing state is poor. In some cases, the quality was inferior.

The present invention uses two nylon unstretched filaments of different elongation in order to eliminate such conventional disadvantages to form a bulky part in the processing yarn by the processing by stretching, flammable and air jet, the rough touch It is an object of the present invention to provide a novel nylon filament processed yarn having an appearance of overspun yarn.

The present invention is described in detail as follows.

The present invention is a novel nylon filament processing yarn in which the inner layer portion of the filament is partially fused to form a screen and the crimp is formed by using two unstretched nylon filaments of different elongation as a feed yarn, wherein the outer layer portion is partially fused of the inner layer. The unfinished yarn is 330 ± 30% of the high-strength undrawn yarn and the low-stretched undrawn yarn is higher than the high-stretched undrawn yarn. 20 to 50% smaller.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In the present invention, two different nylon unstretched filament yarns having an elongation difference of 20 to 50% are supplied through different feed rollers, respectively, so that flammability and sea smoke in spinners are passed through the first heating zone. Let's do it.

The supplier is then stretched and combusted between the supply roller and the roller located next to the spinner. As such, the stretched and combusted supplier is heat-set through the hollow heating zone, and then the yarn is entangled through the interlacer for the air jet treatment and wound around the take-up roll.

In the present invention, by using undrawn yarn having an elongation difference of about 20 to 50%, high draw yarns are partially fused in the first heating zone to form core parts in the final product. At this time, it is important to set the temperature of the first heating zone so that only the high-strength yarn of the two suppliers are fused, the optimum temperature range of 175 ℃ to 195 ℃ confirmed the results of the experiment.

According to the present invention, if the heating temperature is higher than 195 ° C, the bulkiness and strength are lowered due to excessive fusion, and when the treatment temperature is lower than 175 ° C, the fusion is not achieved and the desired purpose cannot be achieved. In addition, the twist number of the twisted yarn is 1800 to 2400 TPM is good, as in the general twisted yarn, and the processing conditions are the same as the known conditions.

On the other hand, in the hollow heating area to stabilize the bulkiness and improve the desolvability. The set temperature in this region should be set within the range of stabilizing the bulkiness of the yarn and improving the degradability. Moderate and supercharge about 10 to 15%.

Thus, using the weaving yarn manufactured in accordance with the present invention as a weft and water repellent or waterproofing after weaving in a water jet loom with a general nylon filament as a slope not only makes the surface of the fabric rough, but also excellent in bulky fabrics suitable for ski wear You can get it.

Hereinafter, the present invention will be described in detail with reference to Examples.

EXAMPLE

Nylon undrawn yarn (200 denier / 24 filaments) of 330% elongation and nylon undrawn yarn (180 denier / 24 filaments) of 290% elongation are supplied to a drawing combustor equipped with an interlacer. It was.

Stretch ratio: 2.7 times Interlacer pressure: 1.5kg / cm ²

First heating zone temperature: 190 ℃ Spindle speed: 400,000 rpm

Hollow heating zone temperature: 180 ℃ Twist per unit length: 2200tpm

Combustor: Pin type spinner Winding speed: 180m / min

It can be seen that the nylon filament processed yarn manufactured by the same method as the embodiment of the present invention and the processed yarn manufactured by the conventional general combustion method have a significantly different shape as shown in FIGS. 1 to 4. have. That is, Figures 1 and 2 show the conventional nylon filament heat yarn and Figures 3 and 4 show the nylon filament processed yarn produced according to the present invention.

As shown in these figures (compared to FIG. 1 and FIG. 3), FIG. 1 shows a straight shape in which all the filaments are gathered and crimped together without showing any looseness around it. In the figure, the processing yarn has a number of loosely crimped filaments around it, and in the center of the processing yarn, a straight fused filament is formed as a screened part that is fused like a column in the whole processing. It gives a rough feeling.

In addition, as can be clearly seen in the cross-sectional view of Figs. 2 and 4, the conventional processing yarn of Fig. 2 is gathered with filaments, but the inventive processing yarn of Fig. 4 is filament examination fused at the center and is separated from the periphery. It can be seen that there is a filament yarn.

Thus, the result of comparing the physical property of the processed yarn of this invention with the conventional processed yarn is as follows.

As described above, the processing yarn according to the present invention, unlike the processing yarn having a conventional crimped shape, the center of the processing yarn is fused to form elongation, and a bulky part is formed around the rough yarn to form a rough touch and spun yarn appearance. Unlike the processing yarns, the processing yarn center is fused to form a depth and a bulky part is formed around, thus making a novel nylon filament processing yarn having a rough touch and spun yarn appearance.

Claims (3)

A nylon filament processed yarn, characterized in that two unstretched nylon filaments of different elongation are used as feeders, and the filament inner layer part is partially fused to form a screen, and the upper layer part is crimped. The processed yarn according to claim 1, wherein the fused screened portion of the inner layer is 15 to 40% of the total number of filaments of the processed yarn. The processed yarn according to claim 1, wherein the supplier has an elongation of 330 ± 30% of the high-stretched non-drawn yarn, and the low-stretched non-drawn yarn has 20 to 50% less elongation than the high-stretched non-drawn yarn.

Images