Preparation method of special-color DTY composite yarn and production technology of fabric made of special-color DTY composite yarn

A composite yarn and heterochromatic technology, which is applied in the field of preparation of heterochromatic DTY composite yarn, can solve the problems of visual incongruity, uneven stripes, high yarn production cost, etc., to ensure quality, yarn network point stability, and uniformity Effect

Inactive Publication Date: 2018-11-20
TORAY SAKAI WEAVING & DYEING NANTONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, there are also suspense about quality problems. Because the FDY composite yarn has few network points and low network point fastness, when the weft insertion of the loom is subjected to different forces, the network points are scattered unevenly. There are uneven stripes on the two selvedges of the fabric. Because the left selvedge of the fabric corresponds to the nozzle of the loom (left), the force on the yarn during weaving is smaller than that on the right. Delicate edge stripes (such as figure 2 logo)
This quality problem will have a serious impact on sewing and tailoring. If different styles of fabrics are sewn into garments, it will cause visual incongruity
Picking and cutting will also increase the cost
[0007] DTY is the compounding of raw materials, the cost of yarn is high, and the raw material itself has a network, and when it passes through the network nozzle, the air pressure is not easy to hit it, which will cause poor compounding of the network points
ETD high-shrinkage elastic two-color fiber is one of the more advanced preparation methods at present, but this invention does not study its prepared fabrics
Moreover, in order to achieve high elasticity, two-component raw materials are used, and the cost of yarn making is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of special-color DTY composite yarn and production technology of fabric made of special-color DTY composite yarn
  • Preparation method of special-color DTY composite yarn and production technology of fabric made of special-color DTY composite yarn
  • Preparation method of special-color DTY composite yarn and production technology of fabric made of special-color DTY composite yarn

Examples

Experimental program
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Effect test

Embodiment

[0029] 1. Production of heterochromatic DTY composite yarn

[0030] image 3 It is a schematic diagram of the processing of heterochromatic composite yarn of the present invention, wherein A is raw material 1, B is raw material 2, 1 is a shredder, 2 is the first roller, 3 is the second roller, 4 is a twist stopper, and 5 is a heating box, 6 is the cooling plate, 7 is the false twist disc, 8 is the reference roller, 9 is the specific air network nozzle, 10 is the third roller, 11 is the composite yarn

[0031] The present invention is different from the past, and the main technical points are as follows:

[0032] 1. Use 2 POYs as raw materials, raw material A is any POY such as PET, PA, PBT, PTT, CD, PBT / PET, PTT / PET, and raw material B is PET, PA, PBT, PTT, CD, PBT / PET , PTT / PET and other ingredients of POY, the ingredients of A and B are different;

[0033] 2. The raw material texturing process is controlled separately, and is texturized through the hot box and the false t...

specific Embodiment 1

[0054] Produced on the TMT (ATF-21) machine in Japan, raw material A uses CD.POY with a specification of 55dtex / 36f (U value 0.7), raw material B uses a specification of 25D / 24.BR.NY.POY, and raw material A is internally drawn Stretching 1.8 times, hot box temperature 165°C, raw material B internal draft 1.2 times, hot box temperature 180°C, raw materials A and B are respectively elasticized by disc false twister, and then fed into the same specific machine with 2.0% overfeed rate Network composite nozzles to obtain a composite yarn with a fineness of 55dtex. The pressure processed at the nozzle is 2kg.

[0055] The weft yarn is selected from the above-mentioned heterochromatic DTY composite yarn (component: nylon cationic), the warp yarn is 20D.BR.NY, plain weave interlaced, and the gray cloth is woven into a gray cloth on a loom with specific parameters, and then the gray cloth is subjected to conventional refining → intermediate shaping → Dyeing (dye selects single-dye nyl...

Embodiment 1

[0056] The specification of raw material A described in Example 1 is CD.POY of 80dtex / 72f, the specification of raw material B is 60dtex / 24f.POY, the internal draft of raw material A is 1.6 times, the temperature of hot box is 155°C, and the internal draft of raw material B is 1.8 times, the temperature of the hot box is 210°C, the raw materials A and B are respectively textured through the disc false twister, and then fed into the same specific network composite nozzle with a 3.0% overfeed rate to obtain a composite yarn with a fineness of 88dtex (component: cationic polyester ). The processing pressure at the nozzle is 1.5kg.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of special-color DTY composite yarn and a production technology of a fabric made of the special-color DTY composite yarn. After elasticity is improved, a raw material A and a raw material B are fed into a special air network nozzle in the same overfeed ratio, and the overfeed ratio range is 2.0-4.0%, so that 90-120 composite yarn network points are arranged in each meter, and the network point fastness is 75-90%; the air pressure of the specific air network nozzle is 1.5-3.0 kg. Compared with special-color DTY composite yarn produced through a traditional two-step method, the composite yarn prepared through the method has the cost advantage, and the yarn network points are stable. According to the fabric prepared from the yarn, the uniformity offabric strips can be guaranteed to a great extent, and the quality is ensured.

Description

Technical field [0001] The invention belongs to the field of textile fabrics, and specifically relates to a preparation method of heterochromatic DTY composite yarn and a production process of the fabric. Background technique [0002] With the rapid development of the textile industry, people have higher and higher requirements for chemical fiber clothing textiles, especially the color of fabrics, which is no longer limited to solid colors. Fabrics made from composite yarns of different colors have become a popular trend. The so-called heterochromatic composite yarn is a kind of composite yarn that uses two or more different raw materials. The fabric is then dyed and finished, and the different coloring properties of the raw materials are used to make the fabric have irregular colors. Striped feel. [0003] Conventional heterochromatic composite yarn uses two different components of FDY or DTY as raw materials, feeds them into the nozzle at a certain overfeed rate, and is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): D02G3/04D02G3/34D02G1/02D02J1/08D03D13/00D03D15/00D03D15/283D03D15/292
CPCD02G1/0206D02G3/04D02G3/346D02J1/08D03D13/008D03D15/54D03D15/47
Inventor刘荣荣吉安明王国平顾晓林
OwnerTORAY SAKAI WEAVING & DYEING NANTONG CO LTD