KR20170055111A

KR20170055111A - Thick and thin multi-twisted yarn and a manufacturing method thereof

Info

Publication number: KR20170055111A
Application number: KR1020150157870A
Authority: KR
Inventors: 최만식
Original assignee: 최만식
Priority date: 2015-11-11
Filing date: 2015-11-11
Publication date: 2017-05-19

Abstract

The present invention relates to a false-twist composite yarn and a method of manufacturing the same, and a method of manufacturing a false-twist composite yarn according to an embodiment of the present invention includes: supplying a partially drawn yarn and a high- Feeding the partially drawn yarn to a first feed roller and performing heat treatment with a hot pin; Feeding the heat-treated partially stretched yarn to a second feed roller and twisting at a warp portion passing through the heating plate and the cold plate to obtain a false false false warp yarn; Folding the false twist yarn and the high stretchable false twist yarn; And winding the wound false-twist composite yarn on a take-up roller through a third supply roller, wherein the false-twist composite yarn produced from the false twist composite yarn can have a characteristic of excellent stretchability and dyeing shade difference.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twisted yarn composite yarn and a manufacturing method thereof,

The present invention relates to a false-twist composite yarn and a manufacturing method thereof, and more particularly, to a false-twist composite yarn having excellent stretchability and dyeing-and-shading difference, and a manufacturing method thereof.

Generally, false twist yarns are mainly manufactured for the purpose of imparting a sense of volume to a yarn by imparting a crimp through a false twist and a twisted yarn. The false twist yarn has a sense of volume, and a yarn that expresses a soft feeling may be subjected to false twist yarns in order to produce a feeling of roughness. In this case, the cushioning portion and the non-crimping portion appear at a constant interval, which results in a disadvantage that a natural feeling of surface can not be obtained.

The posture yarn is widely used as a yarn having an effect of alternating the thick part and the thin part having a relatively high fineness in the length direction of the yarn and having a soft touch and a dichroism property of an oxidizing and a chelating part at the time of dyeing .

As a method for producing a polyester stencil, there is known a method in which a polymer is spun in a filament state from a spinneret, a stretching roller having unevenness is formed at the time of stretching, or a device for exerting a posture effect is separately provided. A method of deforming the shape of the roller into an ellipse, a triangle or a quadrangle, and physically controlling the stretch magnification and the stretching temperature to manufacture the false positives.

Korean Patent Publication No. 1988-0001701 discloses a method for producing an unstable composite polyester yarn prepared by co-spinning two polyester resins different in heat shrinkability from each other to produce a polyester polyester yarn having a different twist angle, And then subjected to a relaxation heat treatment such that the relaxation ratio becomes 2 to 15% at a temperature of 100 to 110 ° C. after stretching the polyester film at a specific temperature and a predetermined stretching ratio below the second transition temperature.

Korean Patent Publication No. 1988-0476 discloses a process for manufacturing a polyester staple yarn by attaching an undrawn yarn having a triangular cross section to a first heating rod and a movable guide between a first stretching roller and a second stretching roller of a conventional high- Lt; / RTI >

An object of an embodiment according to the present invention is to provide a posture warpable composite yarn excellent in stretchability and dyeing and shading difference and a manufacturing method thereof.

One embodiment of the present invention is a method for producing a stretchable yarn, comprising: supplying a partially stretched yarn and a high stretchable false warp yarn, respectively; Feeding the partially drawn yarn to a first feed roller and performing heat treatment with a hot pin; Feeding the heat-treated partially stretched yarn to a second feed roller and twisting at a warp portion passing through the heating plate and the cold plate to obtain a false false false warp yarn; Folding the false twist yarn and the high stretchable false twist yarn; And winding the wound false-twist composite yarn on a take-up roller through a third supply roller.

The heat treatment temperature of the hot pin may be 80 to 120 ° C.

The heating temperature of the heating plate may be 170 to 180 ° C.

The stretching ratio between the first feeding roller and the second feeding roller and the stretching ratio between the second feeding roller and the third feeding roller is 1.2 to 1.4.

The twisted yarn portion may be twisted belt type, and the angle of contact between the partially drawn yarn and the twister belt may be 95 to 100 degrees.

And is fed to the winding roller after being converged by a nozzle disposed behind the third feeding roller in the winding step.

Another embodiment of the present invention provides a state-of-the-art combustible composite yarn, which is produced by the above-described method.

According to the method of the present invention, the partially stretched yarn is twisted with the high stretchable twist yarn to produce the false twisted yarn composite yarn which can be woven and knitted without being subjected to the twisting process and the ITY process can do.

According to the method of the present invention, the partially stretched yarn is subjected to high-speed twist processing and the high stretchable twist yarn without further processing, thereby imparting stretchability and imparting a dyeing / Can provide a ready-to-use composite yarn.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view schematically showing a step of manufacturing a posture-warpable composite yarn according to an embodiment of the present invention. Fig.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Therefore, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the following embodiments.

Throughout the description of the present invention, when a component is referred to as " comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise.

In the specification of the present invention, it is to be understood that when a step is located "on" or "before" another step, this is not only the case where a step is in a direct time series relationship with another step, And may have the same rights as in the case of an indirect temporal relationship in which the temporal order of the two phases can be changed.

The terms " about ", " substantially ", etc. used to the extent that they are used throughout the specification of the present invention are used in their numerical values or in close proximity to their numerical values when the manufacturing and material tolerances inherent in the meanings mentioned are presented, Is used to prevent unauthorized exploitation by an unscrupulous infringer of precise or absolute disclosures in order to aid in the understanding of the disclosure. The term " step " or " step of ~ " used throughout the specification does not mean " step for.

The present invention relates to a false-twist composite yarn and a method of manufacturing the same, and a method of manufacturing a false-twist composite yarn according to the present invention includes: supplying a partially drawn yarn and a high- Feeding the partially drawn yarn to a first feed roller and performing heat treatment with a hot pin; Feeding the heat-treated partially stretched yarn to a second feed roller and twisting at a warp portion passing through the heating plate and the cold plate to obtain a false false false warp yarn; Folding the false twist yarn and the high stretchable false twist yarn; And winding the wound false-twist composite yarn onto a take-up roller through a third feed roller.

The posture warpable composite yarn according to one embodiment of the present invention is produced by the above method, and two different kinds of polyester filament yarns are combined with each other in a high-speed fusing machine to impart stretchability and a dyeing / And is a state-of-the-art complex conjugate.

Generally, in order to develop a dyeing and coloring agent in a false-twist yarn, a method of folding the false twist yarn through an additional process is used. In such a case, there is a drawback that the workability of the yarn is reduced by the additional process. Although it is possible to show the difference in dyeing dyes using a low-speed mixer, there is a problem in that the effect of dyeing and mixing is not good when a high-speed mixer is used.

However, according to one embodiment of the present invention, it is possible to provide a posture warpage composite yarn excellent in stretchability and excellent in dyeing and shading difference without being subjected to an additional process by simultaneously performing high-speed twist processing and partially twisting the partially stretched yarn have.

Hereinafter, a method of manufacturing a potentially combustible composite yarn according to an embodiment of the present invention will be described in detail, and a potentially combustible composite yarn according to an embodiment of the present invention can be more specifically identified and understood.

First, the partially drawn yarn 110 and the highly stretchable twisted yarn 120 are supplied from the first feed roller P1 and the second feed roller P2, respectively.

According to one embodiment of the present invention, the partially drawn yarn 110 can be manufactured by a POY (Pre-Oriented Yarn) process in which a thermoplastic resin is spun and wound, and polyester yarns can be used. The partially stretched yarn 110 may have a stretch of polyester filaments of 130 to 150%.

The highly stretchable false twist yarn 120 may be made of polyester yarn and may have a shrinkage ratio of 20 to 30%.

Draw Textured Yarn (DTY) is also called "stretch yarn" and is made by bulking and stretching the filaments in a drawing process. Generally, in order to make the filament yarn soft and stretchable, the filament must be formed and then subjected to a separate process called flammability. The DTY is a process in which a spinning, stretching and fusing process are simultaneously processed in one machine. For example, it can be processed by a draw-texturing machine.

In the present invention, the highly stretchable false twist yarn 120 may play a role of imparting stretchability and warmth to the posture warpable composite yarn.

The partially drawn yarn 110 may be delivered to the hot pin 20 through the first feed roller 11.

According to an embodiment of the present invention, the heat treatment temperature of the hot pin 20 may be 80 to 120 ° C.

If the heat treatment temperature is less than 80 캜, there is a fear that the posture effect is reduced.

The partially drawn yarn 110 having passed through the hot pin 20 may be led to the heating plate 30 through the second feeding roller 12. According to one embodiment of the present invention, the partially drawn yarn 110 can be stretched by the first feeding roller 11 and the second feeding roller 12 disposed before and after the hot spot 20. The stretching ratio between the first feeding roller 11 and the second feeding roller 12 before and after passing the hot pin 20 may be 1.2 to 1.4.

If the stretching ratio is less than 1.2, unhardened margins may occur due to a decrease in twisting tension. If the stretching ratio exceeds 1.4, mulling may occur due to increase in twisting tension.

The partially drawn yarn 110 delivered through the second feed roller 12 may be sequentially delivered to the heating plate 30 and the cooling plate 40. After passing through the heating plate 30 and the cooling plate 40, Can be guided to the part (50).

According to an embodiment of the present invention, the processing temperature of the heating plate 30 may be 170 to 180 ° C. If the temperature is lower than 170 占 폚 or exceeds 180 占 폚, the dyeability may be lowered.

The combustible portion 50 can be adopted in various types of combustible devices, and can preferably be a twisted belt type.

When the false twist device of the false twist portion is of the twist belt type, the contact angle of the partially drawn yarn and the twister belt may be 95 to 100 DEG.

If the contact angle of the twister belt (TWISTER BELT) is less than 95 deg., There is a possibility of occurrence of uncracked grain.

And can be folded in the yarn guide 60 together with the high stretchable false twist yarn 120 after being twisted at the twisted portion 50.

According to one embodiment of the present invention, the partially unstretched yarn 110 is twisted and then joined with the high-elasticity false twist yarn to produce a false-twist composite yarn excellent in stretchability. The warped composite warp yarn 100 may be led to the nozzle 70 through the third supply roller 13.

According to one embodiment of the present invention, the stretching ratios before and after the false twisting and the twining, that is, the stretching ratios of the second feeding roller 12 and the third feeding roller 13 may be 1.2 to 1.4.

The combustible composite yarn 100 is led to the nozzle 70 disposed behind the third feeding roller 13 and can be focused through the nozzle 70. [

According to an embodiment of the present invention, in order to facilitate focusing, the size of the nozzle is preferably 1.6 占 or more, and the air pressure may be preferably 2.0KG or more.

The composite warp yarn 100 that has been focused through the nozzle can be guided to the winding roller 80 through the fourth feeding roller 14 and wound around the winding roller 80.

The method of manufacturing a potentially combustible composite yarn according to an embodiment of the present invention is a method of manufacturing a potentially combustible composite yarn by twisting a partially unstretched yarn together with a high stretchable twist yarn to make it possible to weave and knit without passing through a twisting process and an ITY process, A combustible composite yarn could be produced.

The posture warpable composite yarn according to one embodiment of the present invention may be a polyester yarn in which the mono denier is 3 to 4 denier and the total denier is 290 to 300 denier.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the following examples, but they should not be construed as limiting the scope of the present invention.

[Example]

Example One

Using a partially stretched polyester 250/48 f POY yarn, according to one embodiment of the present invention, a false twist yarn was produced by twisting after passing through a heat treatment, a heating plate and a cold plate. The posture warp yarn and the high stretchability false twist yarn were folded together using a yarn guide disposed between the warp portion and the third supply roller, and the warp yarn was collected through a nozzle to produce a false twist yarn composite yarn.

At this time, the draw ratio between the first feed roller and the second feed roller was set to 1.3, the heat treatment temperature of the hot pin was 110 DEG C, the draw ratio between the second feed roller and the third feed roller was 1.4, the first plate temperature was 180 DEG C, The contact angle of the negative twister belt (TWISTER BELT) was 100 °.

The stiffness and stiffness were combined and then focused through a nozzle. The size of the nozzle for focusing was 1.6Ø and the air pressure was 2.0KG. The posture effect and the stretching effect of the thus obtained posture retarding composite yarn were measured, and the results are shown in Table 1 below.

Example 2

The same yarn as in Example 1 was used, only the heat treatment temperature of the hot pin was changed to 90 deg. C, and the other conditions were the same as those in Example 1. [

Example 3

The same yarn as in Example 1 was used, and only the temperature of the first heating plate was changed to 170 ° C, and the remaining conditions were the same as those in Example 1.

Comparative Example 1

The same yarn as in Example 1 was used, and only the heat treatment temperature of the hot pin was changed to 80 캜, and the remaining conditions were the same as those in Example 1.

Comparative Example 2

The same yarn as in Example 1 was used, and only the temperature of the first heating plate was changed to 200 DEG C and the other conditions were the same as those of Example 1. [

Comparative Example 3

The same yarn as in Example 1 was used and only the drawn ratio between the second feeding roller and the third feeding roller was changed to 1.1 and the remaining conditions were the same as in Example 1. [

Comparative Example 4

Using the same yarn as in Example 1, the drawn ratio between the second feed roller and the third feed roller was changed to 1.5, and the remaining conditions were the same as those in Example 1. [

Item Poise effect Stretching effect Mow Untitled Example 1 ◎ O ◎ O Example 2 O O O O Example 3 O O O O Comparative Example 1 × O ◎ O Comparative Example 2 O O △ △ Comparative Example 3 × O O △ Comparative Example 4 △ O △ O

⊚: very good, O: good, △: slightly poor, ×: poor

Examples 1 to 3 according to one embodiment of the present invention were excellent in the posture effect and expansion and contraction effect, and showed almost no occurrence of maw and non-maraging.

On the other hand, Comparative Examples 1 to 4 prepared by varying the production conditions were not excellent in the posture effect or stretching effect, and there was an increase in the degree of defects due to occurrence of mohwami marine.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It is evident that many variations are possible by those skilled in the art. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. something to do.

P1: first feed roller P2: second feed roller
100: Stable waste composite yarn 110: Partially stretched yarn
120: high elasticity false twist yarn 11: first feeding roller
12: second supply roller 13: third supply roller
20: Hot Pit 30: Hot plate
40: cooling plate 50:
60: padding 70: nozzle
80: take-up roller

Claims

A partially stretched yarn and a high stretchable false twist yarn;
Feeding the partially drawn yarn to a first feed roller and performing heat treatment with a hot pin;
Feeding the heat-treated partially stretched yarn to a second feed roller and twisting at a warp portion passing through the heating plate and the cold plate to obtain a false false false warp yarn;
Folding the false twist yarn and the high stretchable false twist yarn; And
Winding the wound false-twist composite yarn through a third feed roller onto a take-up roller;
Wherein the first and second stiffened composite yarns are made of a synthetic resin.

The method according to claim 1,
Wherein the heat treatment temperature of the hot pin is 80 to 120 占 폚.

The method according to claim 1,
Wherein the heating plate has a treatment temperature of 170 to 180 占 폚.

The method according to claim 1,
Wherein the stretching ratio between the first feeding roller and the second feeding roller and the stretching ratio between the second feeding roller and the third feeding roller is 1.2 to 1.4.

The method according to claim 1,
Wherein the twisted portion is a twisted belt type, and the contact angle of the partially drawn yarn and the twister belt is 95 to 100 degrees.

The method according to claim 1,
Wherein the bundle is fed to a winding roller after being converged by a nozzle disposed behind the third supply roller in the winding step.

A ready-to-ignite composite yarn produced by the method of any one of claims 1 to 6.