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Polyester composite elastic fiber

A composite elastic fiber and polyester technology, which is applied in the direction of conjugated synthetic polymer rayon, textiles, papermaking, yarn, etc., can solve the problems of difficult adjustment, tight elasticity, hard fiber feel, etc., and achieve cost saving and elasticity Sufficient, flexible range of effects

Inactive Publication Date: 2015-03-25
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nowadays, in addition to spandex, polyester composite fibers are widely used in the market. However, under the premise of satisfying the elastic elongation and recovery rate, the fibers still feel hard and the elasticity is too tight. Difficult to adjust and other disadvantages

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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  • Polyester composite elastic fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] ECDP with an intrinsic viscosity of 0.58dL / g is used as component A, and PTT with an intrinsic viscosity of 1.02dL / g is used as component B, with a weight ratio of A:B=83:17, respectively supplied to the two screws of the composite spinning equipment The extruder and the metering pump are respectively metered and fed into the two-component composite spinning box. After being extruded through a specific spinneret, the ring air is cooled and oiled. The spinning temperature is 285°C, and the tow is wound (speed 1500m / min) after drafting and setting, first-stage drafting (drawing temperature 150°C, drafting ratio 1.2 times), secondary drafting (drawing temperature 190°C, drafting ratio 4 times), drafting speed 400m / min, Filaments are produced. The filaments are dry heat treated at 140°C to obtain polyester composite elastic fibers with excellent properties.

[0019] The inner side of the fiber is wrapped with 7 eccentric core-sheath type ECDP / PTT composite coarse denier y...

Embodiment 2

[0021] PET with an intrinsic viscosity of 0.70dL / g is used as component A, and PBT with an intrinsic viscosity of 1.05dL / g is used as component B, with a weight ratio of A:B=70:30, respectively supplied to the two screws of the composite spinning equipment The extruder and the metering pump are respectively metered and fed into the two-component composite spinning box. After being extruded through a specific spinneret, the ring air is cooled and oiled. The spinning temperature is 290°C, and the tow is wound (speed 2000m / min) after drafting and setting, primary drafting (drawing temperature 140°C, drafting multiple 1.8 times), secondary drafting (drawing temperature 160°C, drafting multiple 3 times), drafting speed 600m / min, Filaments are produced. The filaments are dry heat treated at 150°C to obtain polyester composite elastic fibers with excellent properties.

[0022] The inner side of the fiber is wrapped with 10 side-by-side PET / PBT composite coarse denier yarns, with a ...

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 polyester composite elastic fiber. A fiber tow is formed by mixing two types of monofilaments of different fineness degrees and structures, and comprises the double-component coarse denier filaments wrapped on the inner side and the single-component fine denier filaments wrapped on the outer side. The double-component coarse denier filaments are formed by compositing two types of polyesters or copolyesters and of the parallel type or eccentric core sheath structure, and have the good natural crimp property and the permanent elastic resilience, wherein the polyesters or the copolyesters have viscosity differences, and the filament number ranges from 1.5 D to 10 D. The fine denier filaments are composed of single components which are the same as those of the coarse denier composite filaments, and the filament number ranges from 0.2 D to 1.5 D. Elastic fabric is endowed with excellent hand feeling due to the fiber, and the touch sense is flexible and fine; the elasticity range of the fabric is wide, the elastic force is appropriate, no pressure sense exists, the polyester composite elastic fiber is particularly suitable for heavy elastic fabric and products, the handle feeling can be soft and fluffy, the elastic force can be easily and freely adjusted, and the situation that the tight constraint feeling is caused when the elastic force is too large can not be caused.

Description

technical field [0001] The invention belongs to the field of novel fibers, and in particular relates to a polyester composite elastic fiber, which has soft touch and sufficient elasticity, but the elastic force can be easily adjusted. Background technique [0002] The elasticity of a textile mainly depends on its structure, including the chemical structure of the fiber, the supramolecular or microstructure of the fiber, the morphological structure of the fiber or yarn, and the organizational structure of the textile. By changing or controlling the above structures, the elasticity of textiles can be increased or improved. For ordinary textiles, due to the general structure of fibers, yarns and textiles, although they also have certain elasticity, the elasticity is not high; for elastic textiles, since elastic fibers or yarns are selected and woven into a certain Tissue structure, so good elasticity. [0003] There are many ways to improve fiber elasticity or develop highly ...

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 & Authority Applications(China)
IPC IPC(8): D02G3/36D02G3/04D01F8/14
CPCD02G3/36D01F8/14D02G3/04D02G3/045
Inventor 赵茂成陈琳钱君杰曾彬雅
Owner SHANGHAI VITA SCI & TECH
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