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Polyether ester elastic fiber and fabrics and clothes made by using the same

A technology of elastic fiber and polyether ester, applied in the field of polyether ester elastic fiber, which can solve the problems of comfort limitation and non-practicability of polyether ester elastic fiber

Active Publication Date: 2007-12-05
TEIJIN FRONTIER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these hard segments and segments are generally hydrophobic, and polyetherester elastic fibers with hydrophilic properties such as hygroscopicity or water absorption are hardly put into practical use.
[0006] In addition, in the publication of International Publication No. 00 / 47802, elastic fibers endowed with hygroscopicity are disclosed, but only specific examples of polyurethane elastomers containing water-absorbent resins with a water absorption rate of 500 to 4000% by weight are described.
[0007] In addition, as previously disclosed, the fiber itself only has hygroscopicity, and the improvement of its comfort is limited when it is made into fabrics or further made into clothing, so elastic fibers with renewed functions are required

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] 100 parts by weight of dimethyl terephthalate and 23 parts by weight of 40% by weight of sodium 3,5-bis(β-hydroxyethoxycarbonyl)benzenesulfonate in ethylene glycol solution (5.0 moles relative to the total acid content) %), 113.4 parts by weight of polyoxyethylene glycol (number average molecular weight 4000), 73.5 parts by weight of 1,4-butanediol (1.4 mole multiples of all acid components) and 0.4 parts by weight of tetrabutyl titanate catalyst were added to In the reaction tank, the transesterification reaction was carried out at an internal temperature of 200°C. When about 80% of the theoretical amount of methanol is distilled out, 0.4 parts by weight of the above-mentioned hindered phenol compound (4) is added, and then the temperature is increased and the pressure is reduced to start the condensation polymerization reaction. In the polycondensation reaction, the pressure reached 30mmHg in about 30 minutes, and then reached 3mmHg in 30 minutes, and then reacted under a...

Embodiment 2

[0101] Except having used polyoxyethylene glycol (number average molecular weight 2000) instead of polyoxyethylene glycol (number average molecular weight 4000), it carried out similarly to Example 1, and obtained the elastic fiber with an intrinsic viscosity of 1.16. The results are shown in Table 1.

Embodiment 3

[0103] Except changing the copolymerization ratio of polyoxyethylene glycol (number average molecular weight 4000) to make the weight ratio of hard segment / soft segment 60 / 40% by weight, the same procedure as in Example 1 was carried out to obtain an intrinsic viscosity of 1.12 Polyetherester elastic filament. The results are shown in Table 1.

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Abstract

A polyether ester elastic fiber is characterized by comprising a polyether ester elastomer containing polybutylene terephthalate as a hard segment and polyoxyethylene glycol as a soft segment, having a coefficient of moisture absorption of not less than 5 % at 35 DEG C and at a RH of 95 % and a coefficient of water absorption extension of not less than 10 %. The elastic fiber has two crystal melting peaks on the DSC curve measured by a differential scanning calorimeter. The ratio Hm1 / Hm2 is arranged in 0.6-1.2, wherein Hm1 is the height of the crystal melting peak at the low temperature side and Hm2 is the height of the crystal melting peak at the high temperature side. The breaking elongation is 400% or more. 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

[0001] This application is a divisional application of the PCT application with the application number CN200480017237.5 (the international filing date is June 18, 2004) and the invention name "polyetherester elastic fiber and the fabric and clothing using it". . Technical field [0002] The present invention relates to a polyetherester elastic fiber, which has good moisture absorption and release properties, and can be reversibly stretched by absorbing and releasing water. It is especially used in sports or underwear applications to obtain fabrics that exhibit comfort that was not available before. . Background technique [0003] Conventionally, polyurethane elastic fibers have been mainly used as elastic fibers for clothing or industrial materials, but they have disadvantages such as poor heat resistance, chemical resistance, and weather (light) resistance. In addition, in terms of manufacturing, since a dry spinning process must be used, solvent recovery must be carried out, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/86A41B9/00A41B11/00
Inventor 沟端齐治牧野昭二森冈茂内田正夫永阪文惣
Owner TEIJIN FRONTIER CO LTD
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