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Self-crimping composite filament and processing process thereof

A composite filament, processing technology, applied in the direction of conjugated synthetic polymer artificial filament, filament/wire forming, conductive/antistatic filament manufacturing, etc., to achieve reduced addition, good elastic elongation and elasticity Restoration of performance and cost reduction effects

Inactive Publication Date: 2016-09-07
ZHEJIANG SCI-TECH UNIV
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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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  • Self-crimping composite filament and processing process thereof
  • Self-crimping composite filament and processing process thereof
  • Self-crimping composite filament and processing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, a processing technology of self-crimping composite filaments, the intrinsic viscosity of PBT (according to GB / T14190-2008, using phenol and tetrachloroethane 1:1 as a solvent for detection) is 1.00 dl / g, the melting point is 225 ° C, The moisture content of dry slices is less than 50ppm, the temperature of each zone of the screw is 250~270℃; the intrinsic viscosity of TPEE (according to GB / T 14190-2008, using phenol and tetrachloroethane 1:1 as solvent) 1.10dl / g, melting point 200°C, the moisture content of dry slices is less than 50ppm, and the temperature of each zone of the screw is 250-270°C.

[0033] The compound ratio of PBT and TPEE is 40:60 (mass percentage, the same below), the addition amount of functional masterbatch is 2%, the temperature of the spinning box is 270°C, the side blowing wind speed is 0.4m / s; the spinning speed of the first hot roller is 2000m / min, temperature 70°C; second hot roll speed 4000m / min, temperature 100°C.

[00...

Embodiment 2

[0036] This example has the same setup and working principle as Example 1, except that the intrinsic viscosity of TPEE is 1.10dl / g, the melting point is 203°C, the moisture content of dry slices is less than 50ppm, and the temperature of each zone of the screw is 250-270°C.

[0037]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 side blowing wind speed is 0.5m / s; the spinning speed of the first hot roller is 2200m / min, and the temperature is 80°C; The speed of the second hot roll was 4200m / min, and the temperature was 110°C.

[0038] The size of the self-crimping composite filament formed by the above process is 150dtex / 36f.

Embodiment 3

[0040] This example has the same setup and working principle as Example 1, except that the intrinsic viscosity of TPEE is 1.10 dl / g, the melting point is 205°C, the moisture content of dry slices is less than 50ppm, and the temperature of each zone of the screw is 250-270°C.

[0041] The compound 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 side blowing wind speed is 0.6m / s; the spinning speed of the first hot roller is 2400m / min, and the temperature is 90°C; The speed of the second hot roll was 4400 m / min, and the temperature was 120°C.

[0042] The size of the self-crimping composite filament formed by the above process is 200dtex / 48f.

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Abstract

The invention relates to a self-crimping composite filament and a processing process thereof and belongs to the technical field of fiber production. PBT (polybutylene terephthalate) and a polymer, to which master batches with a composite function are added, are taken as skin layer components, a PBT TPEE (thermoplastic polyester elastomer) is taken as a core layer component, the components are subjected to melt extrusion by a screw extruder respectively, an extruded product enters dual-component composite spinning equipment and skin-core eccentrically composited spinning holes, the sprayed melt is subjected to cooling, oiling, heat setting and winding, and the self-crimping composite filament with ultraviolet-resistant, antistatic and antibacterial combined functions is prepared. The self-crimping composite filament is applied to fields of top-grade elastic fabric, home textile products and the like, and a composite filament product has advantages of good self-crimping property, optimal elastic elongation and elastic recovery performance and the like.

Description

technical field [0001] The invention relates to a self-crimping composite filament and a processing technology thereof, belonging to the technical field of fiber generation. Background technique [0002] Self-crimping fibers, also known as three-dimensional crimping fibers, mainly include two production methods: one is to produce single-component three-dimensional crimped fibers through specially designed spinneret holes and asymmetric cooling; Component three-dimensional crimped fibers. The latter has become the main production method at present due to its good elastic stability and rich product varieties. [0003] Two-component three-dimensional crimped elastic fibers are produced by side-by-side or eccentric composite methods, mainly by using two polymers with different structures or properties, through parallel, cross, wrapping or other arrangements, and composite along the fiber axis. Due to the different structures or properties of the two polymers, the obtained comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/34D01D5/08D01D5/088D01D5/096D01F1/10D01F1/09D01F8/04
CPCD01D5/08D01D5/088D01D5/096D01D5/34D01F1/09D01F1/10D01F8/04
Inventor 王秀华姚玉元张须臻林巧巧
Owner ZHEJIANG SCI-TECH UNIV
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