KR100689604B1 - Composite yarn hvign high elongation and manufacturing method thereof - Google Patents

Abstract

A composite yarn having the high elongation and a manufacturing method thereof are provided to control the content of the original yarn as above 50%, and to perform smoothly the knitting process. The composite yarn(10) includes an over fed original yarn(110) with low elongation. A binding yarn(120) binds the over fed original yarn. The over fed original yarn is an original yarn with a crimp. The over feeding rate of the original yarn is preferably 0.05 to 3.00%. The binding yarn maintains the original yarn as the over feeding state and is made of a chemical yarn with high elongation. Nylon filament yarn, PET filament yarn and PTT filament yarn and PBT filament yarn with the elongation above 20% are used as the binding yarn.

Description

COMPOSITE YARN HVIGN HIGH ELONGATION AND MANUFACTURING METHOD THEREOF}

1 is a view showing a composite yarn for improving the elongation of low elongation yarns as an example of the present invention.

2 is a view showing a composite yarn for improving the elongation of low elongation yarn of another embodiment of the present invention.

3 is a view schematically showing an example of an apparatus for manufacturing a composite yarn for improving the elongation of the low elongation yarn of the present invention.

4 is a view schematically showing another example of an apparatus for manufacturing a composite yarn for improving the elongation of the low elongation yarn of the present invention.

*** Explanation of symbols for main parts of drawing ***

10: composite yarn 110: low elongation yarn

120: high-strength binding yarn 130: high-strength yarn

510: supply roller 532: hollow spindle

530, 550: bobbin 570: winding roller

The present invention relates to a composite yarn for improving the elongation of low elongation yarns using low elongation yarns, such as the branch of 150 ~ 500 denier, low yarn, hemp yarn, and the like, and more particularly, 0.05 to 3.00% overfeeding Composite yarn for improving the elongation of the low-yarn yarn, characterized in that it comprises a low-yarn yarn selected from one of the branch, low-mass, hemp yarn, and high-strength binding yarn for binding the low-yone yarn in the overfeeding state, and It relates to a manufacturing method.

In recent years, clothing materials have been rapidly developed due to the development of chemical fibers, but the demand for wearing eco-friendly and harmless clothes is increasing due to the improvement of living standards and the development of civilization. It is focused on developing natural fibers such as hemp and strengthening its functionality.

However, in the case of such Hanji, low and hemp yarns, the elongation is less than 3.0%. When knitting using circular knitting machines, automatic knitting machines and hosiery knitting machines, the elongation and repulsion are low, so the nose and trimming occur frequently. There is a difficult problem.

In this regard, an invention for improving elasticity by granting elongation to low-yielding yarns such as Hanji has been proposed in Korean Utility Model Publication No. 20-352850.

The Utility Model Registration No. 20-352850 relates to a covering yarn having a structure in which a polyurethane yarn is wrapped at a predetermined interval with a polyurethane elastic yarn, but has an advantage in manufacturing a thick fabric product by good elasticity inherent to polyurethane elastic yarn, The use of Hanji yarn of 500 ~ 1500 denier or more limits the application of general apparel products, and in particular, the manufacturing of knitted products is difficult.

The present invention for overcoming such a conventional problem can adjust the content of low-elongation yarns, such as 150 ~ 500 denier, low-mass yarn, hemp yarn, which is suitable for clothing, as well as 50% or more, elongation and repulsion It is an object of the present invention to provide a composite yarn for improving the elongation of low-yield yarns, which is improved by knitting, because the phenomenon such as snuffing and trimming does not occur during knitting, and a method of manufacturing the same.

The present invention devised in order to achieve the above object is a low elongation yarn selected from the branch, low mass, hemp yarn of 0.05 to 3.00% over fed fineness of 150 to 500 denier, and the low elongation of the over fed state It provides a composite yarn for improving the elongation of low-cost yarns, characterized in that consisting of high-strength binding yarn for binding the yarn.

And a high elongation yarn positioned in parallel with the low elongation yarn, wherein the binding yarn binds the low elongation yarn and the high elongation yarn, which is over fed, for the low elongation yarn. Provide composite yarn.

In particular, the binding yarn and the high-strength yarn provides a composite yarn for improving the elongation of low-strength yarn, characterized in that the fineness is 20 ~ 75 denier, the elongation is 20% or more.

In addition, the over-feeding step of overfeeding the selected low-yield yarn of 0.05, 3.00% of the branch, low yarn, hemp yarn; It provides a method of manufacturing a composite yarn for improving the elongation of low-strength yarn, characterized in that it comprises a; binding step of binding the over-feeding low elongation yarn to a high elongation binding yarn.

In addition, there is provided a high-strength yarn supplying process for supplying a high-strength yarn in parallel with the low-elongation yarn of the overfeeding process, the binding step is an over-feeding low-elongation yarn supplied by the overfeeding process, and the high It provides a method for manufacturing a composite yarn for improving the elongation of low-strength yarn, characterized in that the high-strength yarn supplied by the Taoist yarn supply process together with a high-strength binding yarn.

Hereinafter, the composite yarn for improving the elongation of the low elongation yarn of the present invention and a manufacturing method thereof will be described in detail with reference to the accompanying drawings.

1 is a view showing an example of a composite yarn 10 for improving the elongation of the low elongation yarn of the present invention.

The composite yarn 10 for improving the elongation of the low elongation yarn of the present invention comprises an over fed low elongation yarn 110 and a binding yarn 130 for binding the over fed low elongation yarn 110. .

First, the over-feeding low elongation yarn 110 is a yarn in which a crimp is formed by overfeeding one of the low elongation yarns, low yarn, and hemp yarns of low elongation yarn 110, and the overfeeding rate is 0.05 to 3.00%. Preferably, the overfeeding rate is calculated by the following equation.

When the overfeeding rate of the low elongation yarn 110 is less than 0.05%, the elongation to be given to the low elongation yarn 110 is insufficient, so that the knitting is not good, and when the overfeeding rate is more than 3.00%, the elongation is excellent but manufactured. Since the crimp formed on the composite yarn 10 is too bulky, there is a problem that the knitting of the knitting machine is not made smoothly, such as the needle of the knitting machine does not correctly hold the composite yarn 10, the overfeeding ratio of the low elongation yarn 110 is 0.05 to 3.00% is good.

In addition, the binding yarn 130 is for overfeeding and binding the low elongation yarn 110 in which the crimp is formed so that the binding yarn 130 is maintained in the overfeeding state.

In particular, it is preferable to use high-strength filament yarns such as nylon filament yarn, PET filament yarn, PTT filament yarn, PBT filament yarn, etc., which have elongation of 20% or more, as the binding yarn 130.

In addition, high-strength binding yarns with 20 to 75 deniers of fineness to give the elongate that can be knitted in the state capable of fully exhibiting the original functions of the branch, low-mass and hemp yarns having functions such as superabsorbency, light weight and far-infrared radiation. It is preferable to use 130.

2 is a view showing a composite yarn for improving the elongation of low elongation yarn of another embodiment of the present invention.

On the other hand, in order to more effectively maintain the shape of the over fed low elongation yarn 110, further provided with a high elongation yarn 120 located in parallel with the over fed low elongation yarn 110, the binding yarn ( 130, it is preferable to bind together the over fed low elongation yarn 110 and the non over fed high elongation yarn 120 as shown in FIG.

In this case, as the binding yarn 130 spirally binds the over-feeding low elongation yarn 110 and the high elongation yarn 120, the binding yarn 130 is connected to the high elongation yarn 120 at regular intervals. The crossover 30 is formed, and the overfeeding low elongation yarn 110 is maintained in a more overfeeded state as the binding yarn 130 and the high elongation yarn 120 cross each other.

The high elongation yarn 120 has a high elongation filament such as nylon filament yarn, PET filament yarn, PTT filament yarn, PBT filament yarn, etc., the elongation is 20% or more, the fineness of 20 ~ 75 denier like the binding yarn 130 It is good to use four.

Next, a method of manufacturing the composite yarn 10 for improving the elongation of the low elongation yarn will be described.

The manufacturing method of the composite yarn 10 for improving the elongation of the low elongation yarn of the present invention comprises a large overfeeding process and a binding process.

3 is a view schematically showing an example of an apparatus for manufacturing a composite yarn for improving the elongation of the low elongation yarn of the present invention.

The overfeeding process is a process of overfeeding one of the low elongation yarns 110 selected from the branch, the low yarn, and the hemp yarn to 0.05 to 3.00%, and the low elongation yarn 110 is provided with a bobbin as shown in FIG. 3. Overfeed by the feed roller 510 is rotated 0.05 ~ 3.00% faster than the surface speed of the winding roller to be rotated, the over-feed low yarn 110 is a high-strength binding yarn 130 is wound hollow spindle ( 532).

In addition, the binding process is a process of binding the high-strength binding yarn 130 in the over-feeding state of the low elongation yarn 110, which is over fed by the over-feeding process and the crimp is formed.

The bobbin 530 on which the high-strength binding yarn 130 is wound is mounted to the hollow spindles 532 through which the over- fed low-strength yarn 110 passes, and the high-strength binding yarn 130 is hollow. Passed through the spindle 532 and at the same time bound to the overfeed low elongation yarn 110 by the rotation of the hollow spindle 532. In this case, the degree of binding is determined by the number of rotations of the hollow spins 532.

In this way, by binding the over-feeding low elongation yarn 110 to the high elongation binding yarn 130, the composite yarn 10 for improving the elongation of the low elongation yarn can be obtained. The composite yarn 10 is wound around the bobbin 550 rotated by the winding roller 570.

That is, when the tensile yarn is applied by applying an external force to the composite yarn 10, the low elongation yarn 110 is extended as much as the overfeeding, and the high elongation binding yarn 130 is also over fed the low elongation yarn 110. As long as it is stretched. When the external force is removed from the composite yarn 10, the composite yarn 10 returns to its original state by the elastic recovery force of the high-strength binding yarn 130. Since the composite yarn 10 is excellent in the repulsive force as described above, the knitting is smoothly made without a nose drop and trimming.

4 is a view schematically showing another example of an apparatus for manufacturing a composite yarn for improving the elongation of the low elongation yarn of the present invention.

On the other hand, in order to further improve the resilience of the composite yarn 10 of the present invention, it is preferable that a high-strength yarn supplying process is further added.

The high elongation yarn supplying process is a process of supplying the high elongation yarn 120 to pass through the hollow spindle 532 as shown in FIG. 4 in parallel with the overfeeding low elongation yarn 110. 120 is supplied to the hollow spindles 532 without overfeeding.

The high-strength binding yarn 130 binds the over-feeding low elongation yarn 110 and the high elongation yarn 120 passing through the hollow spindles 532 to produce a composite yarn 10.

In this case, when binding the over-extended low elongation yarn 110 and the high elongation yarn 120 together with the high elongation binding yarn 130, the binding yarn 130 and the high elongation yarn 120 are spaced at regular intervals. As a result, the over fed low elongation yarn 110 is more effectively maintained in the over fed state.

By including the high-strength yarn supply process as described above, it is possible not only to more effectively maintain the state of the over fed low-extension yarn 110, but also to further improve the repulsive force.

Next, the composite yarn 10 for improving the elongation of the low elongation yarn completed by the binding process is wound on the bobbin by the rotation of the winding roller. And if necessary, the composite yarn 10 for improving the elongation of the low elongation yarn can be heat-set and used.

Hereinafter, the composite yarn for improving the elongation of the low elongation yarn of the present invention and a manufacturing method thereof will be described in more detail with reference to Examples and Comparative Examples. The scope of the present invention is not limited to the following Examples. Of course, various modifications can be made without departing from the technical spirit thereof.

Example 1

As the low elongation yarn, a 200 denier Hanji yarn prepared by applying twist to the Hanji tape obtained by cutting a certain width with a slitter device was used. As the high elongation binding yarn, the elongation was 35% and the fineness was 20 denier. Nylon filament was used.

An example of binding the nylon filament yarn to the Hanji yarn by rotating the hollow spines while simultaneously passing the hollow spine wound with the nylon filament yarn using a feed roller with an overfeeding ratio of 0.05% of the Hanji yarn wound on the bobbin. The composite yarn for improving the elongation of low-strength yarn of one person was prepared.

Example 2

Unlike Example 1, a nylon filament having an elongation of 35% and a fineness of 20 denier is used as the high elongation yarn to pass through the hollow spindles without overfeeding, and the overfeeding with the nylon filament yarn of the high elongation binding yarn. The combined Hanji yarn and the nylon filament yarn of the high-strength yarn together to prepare a composite yarn for improving the elongation of the low-strength yarn of Example 2.

EXAMPLES 3-6

Unlike the second embodiment, the Hanji yarn is overfeed with the high filament binding yarn nylon filament yarn through the hollow spinners using feed rollers at 0.10%, 1.00%, 2.00% and 3.00%, respectively. Nylon filament yarn, which is a high elongation yarn, was bound together to prepare composite yarns for improving elongation of the low elongation yarns of Examples 3 to 6, respectively.

Example 7

Unlike Example 2, 150 denier low yarn was used as a low elongation yarn to feed the hollow spins with an overfeeding rate of 0.05%, and a high elongation yarn was used to overfeed PET filament yarn having 30% elongation and 30 denier fineness. It was supplied to the hollow spin with the over-feeding low yarn in the state, the PET filament yarn which is the over-feeding low yarn and the high elongation yarn using a PET filament yarn such as the high-strength yarn as a high-strength binding yarn To bind together to prepare a composite yarn for the elongation of the low-strength yarn of Example 7.

[Examples 8-11]

Unlike the seventh embodiment, the low-yarn yarn is passed through the hollow spinners using a feed roller at 0.10%, 1.00%, 2.00%, and 3.00%, respectively. The low yarn and the high filament yarn PET filament yarn were bound together to prepare composite yarns for improving the elongation of the low elongation yarns of Examples 3 to 6, respectively.

Example 12

Unlike Example 2, 300 denier hemp yarns were used as the low elongation yarns to feed the hollow spins with an overfeeding rate of 0.05%. The high elongation yarns did not overfeed PTT filament yarns with 70% elongation and 75 deniers of fineness. It was supplied to the hollow spin with the over-feeding hemp yarn, and bound the over-feeding hemp yarn and the high-tension yarn PTT filament yarn together using the same high-tension yarn PTT filament yarn To prepare a composite yarn for improving the elongation of low-strength yarn of Example 7.

[Examples 13-16]

Unlike Example 12, the hemp yarn, which is a low elongation yarn, was passed through the hollow spins using a feed roller at an overfeeding rate of 0.10%, 1.00%, 2.00%, and 3.00%, respectively, and the overfeeded with the high-tension binding yarn PTT filament yarn. By binding the hemp yarn and the high-strength yarn PTT filament yarn together, composite yarns for improving the elongation of the low-strength yarns of Examples 3 to 6 were prepared, respectively.

Comparative Example 1

Unlike Example 2, the Hanji yarn, which is a low elongation yarn, and the nylon filament yarn, which is a high elongation yarn, are passed through the hollow spindle without overfeeding, and the Hanji yarn and the high elongation yarn are nylon filament yarns of the high elongation binding sign. The filament yarn was bound together to prepare a composite yarn of Comparative Example 1.

[Comparative Examples 2 and 3]

Unlike Comparative Example 1, the Hanji yarn, which is the low elongation yarn, is passed through the hollow spindles at an overfeeding rate of 0.02% and 4.00%, respectively, and the over fed Hanji yarn and the high elongation yarn, which are nylon filament yarns, are the high elongation binding yarns. The filament yarns were bound together to prepare composite yarns of Comparative Examples 2 and 3, respectively.

[Comparative Example 4]

Unlike Example 7, the low yarn and the high filament yarn were passed through the hollow spindle without overfeeding the high filament yarn and the PET filament yarn, and the low filament yarn and the high filament yarn were made of PET filament yarn, which is the high elongation binding yarn. PET filament yarns were bound together to prepare a composite yarn of Comparative Example 4.

[Comparative Examples 5 and 6]

Unlike Comparative Example 4, the low-yarn yarn is passed through the hollow spindles at an overfeeding rate of 0.02% and 4.00%, respectively, and the low-yarn yarn and the high-yield yarn PET are fed over with the high-strength binding PET filament yarn. The filament yarns were bound together to prepare composite yarns of Comparative Examples 5 and 6.

Comparative Example 7

Unlike Example 12, the hemp yarn of low elongation yarn and the PTT filament yarn of high elongation yarn are passed through the hollow spindle without overfeeding, and the PTT filament of the high hemp yarn and the high elongation yarn is made of PTT filament yarn of the high elongation binding yarn. The composite yarns of Comparative Example 7 were prepared by binding the yarns together.

[Comparative Examples 8 and 9]

Unlike Comparative Example 1, the hemp yarn, which is the low elongation yarn, is passed through the hollow spindles at an overfeeding rate of 0.02% and 4.00%, respectively, and the over-fed hemp yarn and the high elongation yarn PTT filament yarn which are the high elongation binding yarn PTT filament yarn. Were bound together to prepare composite yarns of Comparative Examples 8 and 9.

The composite yarns of Examples 1 to 16 and Comparative Examples 1 to 9 of the composite yarns prepared in this manner were used to manufacture circular knit products of 16 to 24 gauge using a circular knitting machine. In the case of the knitting of knitted circular products, it is possible to smoothly knit without forming snuffs, double layers, etc., and thus, when workability and quality are excellent, it is '○'. If not good, '△', and when the knitting occurs when the nose, trimming, etc. occur infrequently, the knitting is displayed as '×' to evaluate the knitting and the results are shown in Table 1.

[Table 1] Elongation and Knitting of Examples and Comparative Examples

Overfeeding rate (%) Elongation (%) Knitting Overfeeding rate (%) Elongation (%) Knitting Example 1 0.05 12 ○ Example 2 0.05 15 ○ Comparative Example 1 - 6 × Example 3 0.10 17 ○ Comparative Example 2 0.02 8 △ Example 4 1.00 20 ○ Comparative Example 3 4.00 25 × Example 5 2.00 22 ○ Example 6 3.00 23 ○ Example 7 0.05 13 ○ Comparative Example 4 - 4 × Example 8 0.10 14 ○ Comparative Example 5 0.02 6 × Example 9 1.00 17 ○ Comparative Example 6 4.00 22 × Example 10 2.00 19 ○ Example 11 3.00 21 ○ Example 12 0.05 17 ○ Comparative Example 7 - 7 × Example 13 0.10 18 ○ Comparative Example 8 0.02 10 △ Example 14 1.00 22 ○ Comparative Example 9 4.00 27 × Example 15 2.00 24 ○ Example 16 3.00 25 ○

As confirmed in Table 1, Examples 1 to 16 prepared by binding the high-strength yarn of low elongation yarn, low yarn and hemp yarn of 150 to 500 denier with high elongation binding yarn in an overfeeding state of 0.05 to 3.00% Composite yarns have excellent elongation and resilience, so no snuffing, trimming, and double yarns occurred during knitting, but they were bound with high-strength binding yarns without overfeeding low-yield yarns or overfeeding with less than 0.05%. In the composite yarns of Comparative Examples 1, 2, 4, 5, 7 and 8, which were completed by binding with a binding yarn, the elongation and repulsive force were low, and thus, the knitting and trimming occurred frequently during knitting, and thus knitting was difficult.

In particular, the composite yarns of Comparative Examples 3, 6, and 9, which were completed by binding with high-strength binding yarns with low elongation yarns exceeding 3.00%, were excellent in elongation and resilience, but the crimps were excessively formed, causing double-ply yarns. It was difficult to knit.

As described above, the composite yarn for improving the elongation of the low elongation yarn of the present invention is composed of a low elongation yarn 0.05 ~ 3.00% over fed, and a high elongation binding yarn for binding the over fed low elongation yarn in the over fed state. As a result, the elongation and repulsive force is greatly improved, and there is an effect that knitting is possible, such as no snag and trimming during knitting.

In particular, a composite yarn further comprising a high-strength yarn positioned in parallel with the low-strength yarn, and binding the over-extended low-strength yarn and the high-strength yarn together with the high-strength binding yarn, thereby further improving elongation and resilience. There is an effect that can be obtained.

Claims (5)

0.05-3.00% Overfeed fineness 150-500 denier branch, low yarn, hemp yarn selected from one of the low-yield yarns, and a high-strength binding yarn that binds the over-feeding low- elongation yarn in an over-feeding state A composite yarn for improving the elongation of low-yarn yarns. The low elongation yarn of claim 1, further comprising a high elongation yarn positioned in parallel with the low elongation yarn, wherein the binding yarn binds the over fed low elongation yarn and the high elongation yarn together. Composite yarn for improving the ecclesiastical. The composite yarn for improving the elongation of low-strength yarns according to claim 2, wherein the binding yarns and the high-strength yarns have fineness of 20 to 75 denier and elongation of 20% or more. An overfeeding step of overfeeding one of the low elongation yarns selected from the branch yarn, the low yarn and the hemp yarn to 0.05 to 3.00%; A binding process for binding the over-feeding low-strength yarn with a high-strength binding yarn; manufacturing method of a composite yarn for improving the elongation of low-strength yarn, characterized in that it comprises a. The high elongation yarn supplying process according to claim 4, further comprising a high elongation yarn supplying process for supplying a high elongation yarn in parallel with the low elongation yarn of the overfeeding process, The binding process is an elongation of low-elongation yarns, characterized in that the over-feeding low elongation yarns supplied by the overfeeding process and the high elongation yarns supplied by the high elongation yarns supplying process are bound together with high elongation binding yarns. Manufacturing method of composite yarn for improvement.

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