KR20030088290A - Elastic air textured yarn and its manufacturing method - Google Patents

Abstract

The present invention relates to an elastic air textured yatn (air textured yatn) having a resilient function that is easy to manufacture, textile, suit processing and very good texture.

The effect yarns 4 and 5, which are sheath yarns which surround the outside by adopting a thermoplastic fiber having a curling elasticity function in the center air yarn 3, select an appropriate thermoplastic fiber in accordance with the functional requirements of various fabrics, and for air texture processing. Thereby, various high quality yarns having elastic functions can be produced. The core yarn spins a thermoplastic polymer having two different shrinkage ratios from the molten conjugate spinneret by an appropriate ratio to have curling elasticity.

Since the curling function does not appear until the heat treatment of the finishing process, the elastic air-textured yarn of the present invention has good dimensional stability, is easy to manufacture, and is very useful in the textile industry and the garment processing industry, and thus has industrial applicability. Many elastomeric air textured yarns and methods of manufacture are provided.

Description

ELASTIC AIR TEXTURED YARN AND ITS MANUFACTURING METHOD

The present invention relates to an elastic air textured yar (air textured yar) and a method of manufacturing the same,

More specifically, after the heat treatment, the air textured yarn of the present invention may have an elastic function. In particular, the air textured yarn of the present invention is an effect yarn, which is a core yarn of the center employing a thermoplastic fiber having a curling elasticity and a sheath yarn of the outer yarn employing a general thermoplastic fiber. yarn), which is twisted with air textured yarns by air textured yarn processing, and shrinks into thermoplastic fibers with curling elasticity by using high heat during processing in dyeing and finishing processes after weaving. To give the fabric an elastic effect.

Conventional methods for producing air textured yarns are mainly known in Taiwan Patent No. 144452, "Hydrogen-exhausted polypropylene," which is a well-known conventionally used, cross-sectional polyester or nylon composite. The yarn or processed yarn of the fiber is a core yarn or a sheath yarn, and the yarn is twisted by air texture processing, but the fabric composed of such yarn has no elastic function and poor texture.

Other manufacturers may produce staple fiber elastic composite yarn by wrapping the outer side of LYCRA Spandex (staple fiber) by staple fiber, or as a yarn by single / double covering method. The filament elastic composite yarn (called "covering yarn") is produced by wrapping the outer side of the lycra spandex or by wrapping the outer side of the lycra spandex as a yarn by high speed air. Such a yarn is elastic, but the manufacturing process is complicated and polyurethane (spandex) has the following defects.

1. The cost is high because the technology of raw material and manufacturing process is complicated.

2. Weak in humidity and heat, not suitable for high temperature finish and easy to be vulnerable to color finishing.

3. Weak in alkali (NaOH) weight reduction processing.

4. Due to the high elasticity, it is difficult to control the tension of the woven fabric finishing process, and the difficulty of processing is very high, which affects quality and storage.

In order to solve the problems of the various related products described above, various processing techniques and raw materials are selected and actively researched and tested and repeated experiments and improvements, and practically combines the advantages of various elastic composite yarns. We developed high quality yarns such as air-textured yarns composed of an effect yarn which is a core core of elastic fibers and a siding yarn covering the outside of ordinary thermoplastic fibers. High-quality yarn with elasticity by twisting, creating a shrinkage difference in the thermoplastic fiber with curling elasticity by using high heat during processing in the dye finishing process after weaving process, and by air texture processing so that the fabric has elasticity effect Elastic air-textured yarn and its manufacturing method As so it can offer its purpose.

1 is an air textured processing flow chart according to the present invention.

Figure 2 is another flow chart of air texturing processing used in the present invention

3 is an enlarged view of a part of the airflow chart processing apparatus 7 of FIG.

Figure 4 is a manufacturing diagram of curling elastic thermoplastic fibers used in the core yarn of the present invention

5 is a cross-sectional example of curling elastic thermoplastic fibers used in the core yarn of the present invention.

Figure 6 is a side view after heat shrink of curling elastic thermoplastic fibers used in the core yarn of the present invention.

Explanation of symbols for main parts of the drawings

1: water storage port

2: storage port of compressed air

3: core yarn

4: Seas Yarn Effect Yarn (singer)

5: Seas Yarn Effect Yarn (sent a joint venture)

6: winding device

7: Air Textured Processing Equipment

8: Air Textured Yarn

W1.1, W1.2: Feed Rollers

W2: second roller

W3: 3rd Roller

WW: Winding Roller

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

1 is an air textured processing flow chart according to the present invention;

In the picture,

1 is water storage port

2 is a storage port of compressed air

3 is core yarn

4 is Siege Yarn Effect Yarn (single)

5 is Siege Yarn Effect Yarn

6 is a winding device

7 is air texure processing equipment

8 is airtexed yarn

W1.1, W1.2 Feed Feeder

W2 second roller

W3 is the third roller

WW is a winding roller.

2 shows another flow chart of the air texture processing used in the present invention.

3 is an enlarged view of a part of the air textured processing apparatus 7 of FIG.

4 is a manufacturing diagram of curling elastic thermoplastic fibers used in the core yarn of the present invention,

Fig. 5 lists several kinds of cross-sectional views of curling elastic thermoplastic fibers used in the air yarn of the present invention. These are characterized by the fact that the thermoplastic polymers having two different shrinkage ratios are mutually arranged in the fiber cross-sectional view by using the complex spinneret.

Fig. 6 shows a perspective view after heat shrink of curling elastic thermoplastic fibers used in the core yarn of the present invention.

Embodiment

In the present invention, the air-texured yarn is a fiber produced by spinning a thermoplastic polymer having two different shrinkage ratios by an appropriate ratio by a conjugated conjugate spinneret by an appropriate ratio. Fiber cross-sectional view of the thermoplastic polymer to have a feature that is arranged to be mutually arranged, the production is as shown in Figure 4, Figure 5 is a number of the figure of the core yarn composite cross-sectional view used in the present invention. When the hot water is brought into contact with the hot water in the finishing process, the two kinds of materials have different shrinkage ratios, so spring-shaped spirals are formed at the interface due to the difference in shrinkage ratios, which causes curling elasticity.

Effect yarn (4) adopts one or two or more general thermoplastic fibers, and the size and type of yarn are appropriately selected in accordance with the effect and function required for the fabric.

According to the processing flow chart of FIG. 1, the core yarn 3, the effect yarn 4, and the effect yarn 5 are respectively fed to different feed rates via different feed rollers W1.1 and W1.2. And then processed to the center of the air texure processing device 7 (see enlarged view of FIG. 3), and the finished air texured yarn 8 is discharged from the second roller W2, and finally, the third roller ( The feed rate between W3) and the winding roller WW is controlled to wind the thread.

The elastic air-textured yarn 8 of the present invention can weave various types of fabrics by knitting machines, user looms, and bottomless looms, but there is no problem of tension control because the elastic effect does not appear before hot water treatment, and weaving is conventional Compared to elastic composite yarn, it has excellent elasticity through final finishing, print processing, etc., and the texture is very good.

As can be seen from the above, the present invention relates to a method for manufacturing an air textured yarn having a curling elastic function, and will be briefly described by the following examples in order to explain the features of the present invention in a simple and specific manner.

However, the present invention is not limited to the examples listed below.

Explanation of Elasticity Evaluation Method:

INSTRON-6021 Universal Testing Machine

Method a. Pull the 2.5cm x 30cm test operation under the greenhouse and no tension.

(Includes 10cm fitting part of the zipper)

b. Test speed is 1.667 mm / sec

Return speed is 10.0mm / sec

c. Test Piece Weight 12g

d. Positive Tensile Force 1000g

Calculation: Elastic Elongation (Static Tension is 1000g)

= (A2-A1) ÷ A1 × 100%

A1: length of test piece before tensioning

A2: length of test piece when tensile strength is 1000g

EXAMPLE

Fabrication of 160d / 300f Elastic Air Textured Yarn

Core yarn 50d / 12f PET curling elastic yarn

Effect Yarn 100d / 288f PET Round Section Yarn

Processing condition

D.R roller speed 300M / Min

Core Yarn's Ober Feed Rate 8.5%

Effect Yarn's Ober Feed Rate 21.0%

10 kgf /

Elastic Elongation (Static Tension is 1000g) = 14.35 (%)

[Comparative Example]

Fabrication of 170d / 144f Conventional Air Textured Yarn

Core yarn 75d / 72f PET round section yarn

Effect Yarn 75d / 72f PET Round Shape Yarn

Processing condition

D.R roller speed 300M / Min

Core Yarn's Ober Feed Rate 13.5%

Effect Yarn's Ober Spirate 29.0%

Pneumatic 9.0kgf /

Elastic Elongation (Static Tensile Force: 1000g) = 5.75 (%)

As can be seen from the comparison between the above examples and the comparative examples, the core yarn of the present invention is a thermoplastic fiber having a curling elastic function, and the effect yarn adopts ordinary plastic fibers to perform proper processing to exhibit inherent characteristics of the effect yarn. It is also possible to have a unique elasticity to the textured yarn, thereby improving the disadvantages of conventional air textured yarns.

The elastic air textured yarn of the present invention does not show a curling function until the heat treatment of the finishing process, the yarn has good dimensional stability, easy to manufacture, it is useful in the textile processing and garment processing industry, and can be widely used in industry. It works.

Claims (6)

It is composed of an effect yarn which is a center core yarn and an outer sheath yarn, wherein the electric core yarn is a thermoplastic fiber having curling elasticity, and the effect yarn, which is an electric sheath yarn, is one or two or more general thermoplastic fibers. Air textured yarn. The elastic air textured yarn as set forth in claim 1, wherein the core yarn is formed of ordinary thermoplastic fibers having a curling elasticity by melting and conjugating a thermoplastic polymer having two different shrinkage ratios at an appropriate ratio. The elastic air textured yarn of claim 2, wherein the elastic air tensioned yarn obtained after the heat treatment exhibits a curling function to form a spring spiral. 4. The elastic air textured yarn of claim 3, wherein the elasticity is determined by the composition ratio of the effect yarns which are the core yarn and the sheath yarn. (1) In the manufacturing method of the core yarn, thermoplastic polymers having two different shrinkage ratios are spun by melting and conjugate spinneret by appropriate ratio to be thermoplastic fibers having a coloring function. (2) One or two or more general thermoplastic fibers are adopted for the production of effect yarns which are sheath yarns. (3) The resultant core yarn and the seed yarn, the effect yarn, are respectively sent to different rollers, and are fed together in different air feed rates into an air texure processing machine to form an elastic air textured yarn. (4) The obtained elastic air textured yarn is sent to a roller and a winding roller to wind up. A method for producing an elastic air textured yarn, characterized in that it has this order. The method of claim 5, wherein the effect yarns, which are the core yarns and the sheath yarns, are put together in an air textured processing apparatus, processed into elastic air textured yarns, and jetted compressed air using an air textured yarn is used as a factory value. Method for producing an elastic air textured yarn characterized in that the cross-composite to produce.