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Elastic short fiber and processing process thereof

A processing technology and short fiber technology, applied in the field of elastic short fibers and their processing technology, to achieve the effects of good elastic recovery, good elastic elongation and elastic recovery performance, and excellent elastic recovery performance

Inactive Publication Date: 2016-08-10
杭州栋华实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its polymer is still obtained by modifying PET, which also has the above-mentioned problems

Method used

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  • Elastic short fiber and processing process thereof
  • Elastic short fiber and processing process thereof
  • Elastic short fiber and processing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this embodiment, a processing technology of elastic short fibers, the intrinsic viscosity of PBT (according to GB / T14190-2008, with phenol and tetrachloroethane 1:1 as solvent for detection) is 1.00dl / g, melting point 225°C, dry The moisture content of the slice is less than 50ppm, and the temperature of each zone of the screw is 250-270°C; the intrinsic viscosity of TPEE (tested with phenol and tetrachloroethane 1:1 as solvent according to GB / T 14190-2008) is 1.10dl / g, and the melting point is 200 ℃, the moisture content of dry slices is less than 50ppm, and the temperature of each zone of the screw is 250-270 ℃.

[0034] The composite ratio of PBT and TPEE is 40:60 (mass percentage, the same below), the addition of functional masterbatch is 2%, the temperature of the spinning box is 270°C, the wind speed of the surrounding air is 0.6m / s, and the spinning speed is 800m / min; The drawing ratio is 3.5, the drawing temperature is 100°C, the relaxation heat setting tempe...

Embodiment 2

[0037] The setting and working principle of this embodiment are the same as those of Embodiment 1, except that the intrinsic viscosity of TPEE is 1.10dl / g, the melting point is 203°C, the moisture content of dry chips is less than 50ppm, and the temperature of each zone of the screw is 250-270°C.

[0038]The composite ratio of PBT and TPEE is 50:50, the addition of functional masterbatch is 4%, the temperature of the spinning box is 275°C, the wind speed of the surrounding air is 0.8m / s, and the spinning speed is 1000m / min; the drafting ratio is 3.0, and the drafting temperature 90°C, relaxation heat setting temperature 150°C, post-processing speed 350m / min.

[0039] The specification of the short elastic fiber formed by the above process is 2.2dtex / 38mm.

Embodiment 3

[0041] The setting and working principle of this embodiment are the same as those of Embodiment 1, except that the intrinsic viscosity of TPEE is 1.10dl / g, the melting point is 205°C, the moisture content of dry chips is less than 50ppm, and the temperature of each zone of the screw is 250-270°C.

[0042] The composite ratio of PBT and TPEE is 60:40, the addition of functional masterbatch is 6%, the temperature of the spinning box is 280°C, the wind speed of the surrounding air is 1.0m / s, and the spinning speed is 1200m / min; the draw ratio is 2.5, and the draw temperature 80°C, relaxation heat setting temperature 120°C, post-processing speed 400m / min.

[0043] The specification of the elastic short fiber formed by the above process is 5.6dtex / 64mm.

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Abstract

The invention relates to an elastic short fiber and a processing process thereof and belongs to the technical field of fiber generation. Polybutylene terephthalate and a polymer where complex function master batches are added to serve as a skin layer component, poly butylene tertephehalate ester thermoplastic elastomer serves as a core layer component, the skin layer component and the core layer component are respectively subject to melting extrusion through a screw extruder and enter a dual-component composite spinning device and a skin-core core shift composite spinneret orifice, melt sprayed out is subject to a spinning postprocessing process of cooling, oiling, bundling, drafting, cutoff and heat setting, so that the elastic short fiber which has complex functions of ultraviolet resistance, statistic resistance and bacterial resistance is obtained. The elastic short fiber is applied to the fields such as high-grade elastic fabrics and home textile productions and the like, and the products have the advantages of being self-curled and good in elastic elongation ratio and elastic recovery.

Description

technical field [0001] The invention relates to an elastic short fiber and a processing technology thereof, belonging to the technical field of fiber generation. Background technique [0002] Self-crimping fibers are also called three-dimensional crimping fibers, mainly including two production methods: one is to produce single-component three-dimensional crimping fibers through specially designed spinneret holes and asymmetric cooling methods; Component three-dimensional crimped fibers. The latter has become the main production mode at present due to its good elasticity and stability and rich product varieties. [0003] The production of two-component three-dimensional crimped elastic fibers by side-by-side or eccentric compounding is mainly made of two polymers with different structures or properties, which are compounded along the fiber axis through parallel, cross, covering or other arrangements. Due to the different structures or properties of the two polymers, the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10D01F1/09D01D5/08D01D5/092D01D5/12D01D5/34D01D10/02
CPCD01D5/08D01D5/092D01D5/12D01D5/34D01D10/02D01F1/09D01F1/103D01F1/106D01F8/14
Inventor 姚玉元王秀华孟继承
Owner 杭州栋华实业有限公司
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