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Preparation method of bi-component fibers

A bicomponent fiber and fiber technology, which is applied in the field of fiber materials, can solve the problems of affecting the smoothness of the fabric surface, not being able to be dyed at low temperature, and the fiber material being easily damaged, achieving a good cotton imitation effect, narrowing the gap in thermal performance, The effect of good heat resistance

Inactive Publication Date: 2020-04-21
洪泽联合化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PBT / PET composite fibers can only be dyed conventionally, and cannot be dyed at low temperature.
The conventional dyeing temperature is about 100°C. At this temperature, the fiber material is easily damaged, which affects the surface smoothness of the fabric.

Method used

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  • Preparation method of bi-component fibers
  • Preparation method of bi-component fibers
  • Preparation method of bi-component fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of PBT / PET Fiber

[0030] The mass ratio of PBT and PET is 1:1. PBT slices are dried, mixed with PMMA powder at a mass ratio of 10:1, extruded by screw at low temperature, melted and extruded at high temperature, metered and then entered into side-by-side composite components for side-by-side compound distribution. Side-by-side compounding with PET at the spinneret; PET slices are dried, mixed with PMMA powder at a mass ratio of 10:1, extruded through high-temperature melting and low-temperature extrusion of the screw, metered, and then entered into a side-by-side compound component for parallel compound distribution, and in the compound spinneret Side-by-side compounding at the plate and PBT; the side-by-side composite fiber coming out of the spinneret undergoes ring blowing, oiling, winding traction, feeding, and silk filling to obtain the winding filament of the side-by-side composite fiber; winding of the side-by-side composite fiber The silk is balanced...

Embodiment 2

[0039] Preparation of PBT / PET fibers

[0040] The mass ratio of PBT and PET is 1:1, the PBT chips are dried, mixed with PMMA powder according to the mass ratio of 10:2, extruded by screw at low temperature, melted at high temperature, metered, and then entered into the side-by-side composite component for side-by-side compound distribution, and in the compound Side-by-side compounding with PET at the spinneret; PET slices are dried, mixed with PMMA powder at a mass ratio of 10:2, extruded through high-temperature melting and low-temperature extrusion of the screw, metered, and then entered into a side-by-side compound component for parallel compound distribution, and in the compound spinneret Side-by-side compounding at the plate and PBT; the side-by-side composite fiber coming out of the spinneret undergoes ring blowing, oiling, winding traction, feeding, and silk filling to obtain the winding filament of the side-by-side composite fiber; winding of the side-by-side composite ...

Embodiment 3

[0049] Preparation of PBT / PET fibers

[0050] The mass ratio of PBT and PET is 1:1, the PBT chips are dried, mixed with PMMA powder according to the mass ratio of 10:3, extruded through the screw at low temperature and high temperature, measured, and then entered into the side-by-side composite component for parallel compound distribution, and in the compound Side-by-side compounding with PET at the spinneret; PET slices are dried, mixed with PMMA powder at a mass ratio of 10:3, extruded through high-temperature melting and low-temperature extrusion of the screw, metered, and then entered into a side-by-side compound component for parallel compound distribution, and in the compound spinneret Side-by-side compounding at the plate and PBT; the side-by-side composite fiber coming out of the spinneret undergoes ring blowing, oiling, winding traction, feeding, and silk filling to obtain the winding filament of the side-by-side composite fiber; winding of the side-by-side composite f...

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Abstract

The invention discloses a preparation method of bi-component fibers. Compared with conventional PBT / PET bi-component spun yarns, the bi-component fibers have the relatively high elasticity and crimpiness, the good cotton imitation effect and the like, and the adjustment of the internal grain size and the structure of the bi-component fibers lays a theoretical foundation for subsequent low-temperature dyeing. Therefore, the development of novel PBT / PET bi-component yarns not only can reduce the raw material cost, but also can optimize the product development process, and the bi-component yarnscan be widely applied to the field of spinning and have the relatively good application prospect.

Description

technical field [0001] The invention belongs to the field of fiber materials, and in particular relates to a method for preparing bicomponent fibers. Background technique [0002] PET is the abbreviation of polyethylene terephthalate. PET fiber has the advantages of high modulus, good heat resistance, and high plasticity in mechanical properties; however, PET fiber has disadvantages such as poor dyeing performance and low elasticity. PBT is the abbreviation of polybutylene terephthalate. PBT fiber has good durability, dimensional stability and good elasticity, and its elasticity is not affected by humidity; PBT fiber and its products are soft to the touch and hygroscopic. , Good abrasion resistance and fiber crimp, excellent tensile elasticity and compression elasticity, elastic recovery rate is better than polyester; it has special stretchability under dry and wet conditions, and the elasticity is not affected by the temperature change of the surrounding environment. The p...

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): D01D5/08D01D5/32D01D5/14D01D10/02D01F8/14D01F8/10D01F8/02
CPCD01D5/08D01D5/14D01D5/32D01D10/02D01F8/02D01F8/10D01F8/14
Inventor 王健康蒋高明缪旭红高哲杨兆珍
Owner 洪泽联合化纤有限公司
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