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Moisture-absorbing dyed superfine terylene and its production

An ultra-fine polyester, easily soluble technology, applied in the direction of conjugated synthetic polymer rayon, etc., can solve the problems of poor heat resistance, achieve excellent mechanical properties, expand the scope of application, significant social and economic benefits.

Inactive Publication Date: 2007-01-17
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of ECDP fiber is poor heat resistance, and the strength loss is more obvious after repeated ironing

Method used

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  • Moisture-absorbing dyed superfine terylene and its production
  • Moisture-absorbing dyed superfine terylene and its production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 65 parts (by weight) of hygroscopic and easy-to-dye ECDP polyester

[0043] 35 parts (by weight) of water-soluble polyester

[0044] X=35, Y=20 in formula (1);

[0045] n=25 and m=18 in formula (2).

[0046] Hygroscopic and easily dyeable ECDP polyester chips and water-soluble polyester are spun on a composite spinning test machine produced by Shanghai Jingwei Machinery Factory to obtain target fibers. The spinning method is a composite spinning method, as in the literature: Multi-component multi-functional compound ply spinning technology, disclosed by Jing Xiaoan, Sun Hua, Xie Shu, Lin Haifang, Meng Xiangui, Polyester Industry, 12(3), 1999, the spinning speed can reach 3200m / min .

[0047] The spinning process method includes in turn:

[0048] (1) Crystallization drying, melt extrusion, filtration and metering of CDP;

[0049] (2) Crystallization drying, melt extrusion, filtration and metering of COPET;

[0050] (3) passing the product of steps (1) and (2) throu...

Embodiment 2

[0066] 85 parts (parts by weight) of hygroscopic and easy-to-dye ECDP polyester

[0067] 15 parts (by weight) of water-soluble polyester

[0068] X=25 in formula (1), Y=10;

[0069] n=16 and m=20 in formula (2).

[0070] Hygroscopic and easily dyeable ECDP polyester chips and water-soluble polyester are spun on a composite spinning test machine produced by Shanghai Jingwei Machinery Factory to obtain target fibers. The spinning method is a composite spinning method, as in the literature: Multi-component multi-functional compound ply spinning technology, disclosed by Jing Xiaoan, Sun Hua, Xie Shu, Lin Haifang, Meng Xiangui, Polyester Industry, 12(3), 1999, the spinning speed can reach 3200m / min .

[0071] The spinning process method includes in turn:

[0072] (1) Crystallization drying, melt extrusion, filtration and metering of CDP;

[0073] (2) Crystallization drying, melt extrusion, filtration and metering of COPET;

[0074] (3) passing the product of steps (1) and (2)...

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Abstract

The present invention relates to a moisture absorbing and dyeable superfine terylene and its preparing process characterized by that the weight composition is 65-85 parts of moisture absorbing and dyeable ECDP polyester and 15-35 parts of water soluble polyester, the titre of the fibre is 75D-150D, the single yarn density is 20-200nm. The prepared superfine terylene not only keeps the advantage of common cationic modified terylene but also endows the fabric with the functions of moisture absorption, moisture transmission and air permeability. This terylene also has excellent mechanical property and spinnability providing enlarged application field and significant social and economical benefit.

Description

technical field [0001] The invention relates to hygroscopic and easy-to-dye superfine polyester and a preparation method thereof. Background technique [0002] At present, with the development of light and thin textile products, superfine polyester has become one of the leading products of new synthetic fibers. Compared with conventional polyester, it has many advantages. From the perspective of use, it is the most innovative simulation material. . Of course, ultra-fine polyester also has some disadvantages such as high price and high processing cost, especially in post-processing, which requires more care and skill, serious electrostatic phenomena, and decreased dyeing depth and fastness, all of which need to be improved. However, ultra-fine has many special excellent properties, strong market competitiveness, and its development has become a top priority. Its development will not only bring new vigor and vitality to the textile industry, but also increase the affinity bet...

Claims

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Application Information

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IPC IPC(8): D01F8/14
Inventor 陈彦模占海华陈龙张瑜朱美芳
Owner DONGHUA UNIV