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Polyether ester elastic fiber and fabric, clothes made by using the same

a technology of polyether ester and elastic fiber, which is applied in the field of polyether ester elastic fiber, can solve the problems of poor heat resistance, chemical resistance and weather (light) resistance of polyurethane elastic fiber, polyurethane elastic fibers have problems of low productivity and large energy consumption, and achieve excellent comfort and good moisture absorption. good

Inactive Publication Date: 2006-08-10
TEJIN FIBERS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The present invention has been completed on the basis of the above-mentioned conventional techniques as the background, and the object of the present invention is to provide the recyclable polyether ester elastic fibers giving fabrics which have a good moisture-absorbing property and is reversibly largely expanded or contracted by the absorption or release of water to give excellent comfortableness, and to provide a fabric, clothing using the elastic fibers.

Problems solved by technology

Hitherto, polyurethane elastic fibers have mainly been used as elastic fibers for clothes and industrial materials, but have defects that heat resistance, chemical resistance and weather (light) resistance are inferior.
The polyurethane elastic fibers have problems of low productivity and large energy consumption.
Furthermore, the polyurethane elastic fibers have many problems directed to the coming of a future recycling-oriented society, such as the difficulty of recycling and the production of harmful gases on combustion.
However, both these hard segment and soft segment are generally hydrophobic, and polyether ester elastic fibers having hydrophilic properties such as a moisture-absorbing property or a water-absorbing property have little been put to a practical use.
Additionally, only by imparting a moisture-absorbing property to fibers themselves as having been proposed, there is a limit for improving their comfortableness as a fabric or further clothing.

Method used

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  • Polyether ester elastic fiber and fabric, clothes made by using the same
  • Polyether ester elastic fiber and fabric, clothes made by using the same
  • Polyether ester elastic fiber and fabric, clothes made by using the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0081] 100 parts by weight of dimethyl terephthalate, 23 parts by weight (5.0 percent by mole based on all the acid components) of the 40 percent by weight ethylene glycol solution of sodium 3,5-di(β-hydroxyethoxycarbonyl)benzenesulfonate, 113.4 parts by weight of polyoxyethylene glycol (number-average molecular weight: 4,000), 73.5 parts by weight (1.4 molar times based on all the acid components) of 1,4-butanediol, and 0.4 part by weight of tetrabutyl titanate as a catalyst were charged in a reaction vessel and then subjected to an ester interchange reaction at an inner temperature of 200° C. When methanol was distilled out in an amount of about 80% of a theoretical amount, 0.4 part by weight of the above-mentioned hindered phenol-based compound (4) was added, and a polycondensation reaction was started by raising the temperature and reducing the inner pressure. The polycondensation reaction was carried by reducing the inner pressure to 30 mmHg over about 30 minutes, further reduc...

example 2

[0084] The operations were carried out similarly as in Example 1 except that polyoxyethylene glycol (number-average molecular weight 2,000) was used instead of the polyoxyethylene glycol (number-average molecular weight: 4,000), and the elastic fibers having an intrinsic viscosity of 1.16 were consequently obtained. The results are shown in Table 1.

example 3

[0085] The operations were carried out similarly as in Example 1 except that the copolymerization ratio of the polyoxyethylene glycol (number-average molecular weight: 4,000) was changed to a hard segment / soft segment weight ratio of 60 / 40 percent by weight, and the polyether ester elastic filaments having an intrinsic viscosity of 1.12 were consequently obtained. The results are shown in Table 1.

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Abstract

A polyether ester elastic fiber comprising a polyether ester elastomer containing polybutylene terephthalate as a hard segment and polyoxyethylene glycol as a soft segment and copolymerized with a specific metal organic sulfonate, having a coefficient of moisture absorption of not less than 5% at 35° C. and at a RH of 95% and a coefficient of water absorption extension of not less than 10%. The above-mentioned polyether ester elastic fiber has a good moisture-absorbing property, and is reversibly largely expanded or contracted by the absorption or release of water. Therefore, a fabric giving excellent comfortableness can be obtained from said elastic fibers, and can be recycled.

Description

TECHNICAL FIELD [0001] The present invention relates to a polyether ester elastic fiber giving a fabric which has a good moisture-absorbing or releasing property, is reversibly expanded or contracted by the absorption or release of water, and especially gives non-conventional comfortableness for sports uses, inner wear uses and the like. BACKGROUND ART [0002] Hitherto, polyurethane elastic fibers have mainly been used as elastic fibers for clothes and industrial materials, but have defects that heat resistance, chemical resistance and weather (light) resistance are inferior. The polyurethane elastic fibers need a dry spinning process on their production, and the recovery of a solvent is therefore needed. The polyurethane elastic fibers have problems of low productivity and large energy consumption. Furthermore, the polyurethane elastic fibers have many problems directed to the coming of a future recycling-oriented society, such as the difficulty of recycling and the production of ha...

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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IPC IPC(8): D02G3/00D01F6/86D03D15/56
CPCY10T428/2913D01F6/86
Inventor MIZOHATA, SEIJIMAKINO, SHOJIMORIOKA, SHIGERUUCHIDA, MASAONAGASAKA, BUNSOW
Owner TEJIN FIBERS LTD
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