Preparation process of multifunctional polyester low-elasticity composite filament

A polyester low-elasticity and preparation technology, which is applied in the field of preparation of multi-functional polyester low-elastic composite yarns, can solve the problems of limited air permeability and hygroscopicity, poor air permeability, poor hygroscopicity, high modulus of polyester fibers, etc., and achieve dyeing performance Stability, warmth retention, low elongation effect

Inactive Publication Date: 2020-04-07
苏州君辉纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester fiber has high modulus and no polar groups, the fabric woven from it feels hard, has poor air permeability and hygroscopicity, and the color uptake rate in the dyeing process is low
These shortcomings limit its application in fields with high requirements for breathability, moisture absorption and hand feeling.
In addition, the existing polyester low elastic yarn products are relatively single in variety, and the fabrics woven as raw materials have single functions.

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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  • Preparation process of multifunctional polyester low-elasticity composite filament
  • Preparation process of multifunctional polyester low-elasticity composite filament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 Shown, a kind of preparation technology of multifunctional polyester low-elastic composite yarn comprises the following steps:

[0029] (1) Preparation of polyester blend chips

[0030] Pass the polyester wet slice through the wet slice silo and enter the pre-crystallization stage. The pre-crystallization temperature is 170°C, and the pre-crystallization time is 14 minutes. After pre-crystallization, pre-crystallized PET slices are obtained, and then 85% of the pre-crystallized PET slices are , 5% flame retardant masterbatch, 5% hydrophilic masterbatch and 5% antibacterial masterbatch were dried separately, the drying temperature was 180°C, and the drying time was 5h. mixed, and then extruded and granulated to obtain polyester blended chips;

[0031] (2) Melt spinning

[0032] Two parallel melt-spinning processes are adopted, one of which is POY melt-spinning process, and the other is FDY melt-spinning process; the melt-spinning process is: feeding p...

Embodiment 2

[0038] A preparation process of multifunctional polyester low-elastic composite yarn, comprising the following steps:

[0039] (1) Preparation of polyester blend chips

[0040] Pass the polyester wet chip through the wet chip silo and enter the pre-crystallization stage. The pre-crystallization temperature is 173°C and the pre-crystallization time is 15 minutes. After pre-crystallization, pre-crystallized PET chips are obtained, and then 88% of the pre-crystallized PET chips are , 4% flame retardant masterbatch, 4% hydrophilic masterbatch and 4% antibacterial masterbatch were dried separately, the drying temperature was 182°C, and the drying time was 4h. mixed, and then extruded and granulated to obtain polyester blended chips;

[0041] (2) Melt spinning

[0042] Two parallel melt-spinning processes are adopted, one of which is POY melt-spinning process, and the other is FDY melt-spinning process; the melt-spinning process is: feeding polyester blend chips into Screw extrud...

Embodiment 3

[0048] A preparation process of multifunctional polyester low-elastic composite yarn, comprising the following steps:

[0049] (1) Preparation of polyester blend chips

[0050] Pass the polyester wet slice through the wet slice silo and enter the pre-crystallization stage. The pre-crystallization temperature is 175°C and the pre-crystallization time is 12 minutes. After pre-crystallization, pre-crystallized PET slices are obtained, and then 90% of the pre-crystallized PET slices are , 2% flame retardant masterbatch, 5% hydrophilic masterbatch and 3% antibacterial masterbatch were dried separately, the drying temperature was 185°C, and the drying time was 4h. mixed, and then extruded and granulated to obtain polyester blended chips;

[0051] (2) Melt spinning

[0052] Two parallel melt-spinning processes are adopted, one of which is POY melt-spinning process, and the other is FDY melt-spinning process; the melt-spinning process is: feeding polyester blend chips into Screw extr...

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 a preparation process of a multifunctional polyester low-elasticity composite filament. The preparation process comprises the following steps that (1) blending of a pre-crystallized PET slice, a flame-retardant master batch, a hydrophilic master batch and an antibacterial master batch is carried out, and then extrusion granulation is performed to obtain a polyester blendedslice; (2) two parallel melt spinning processes are adopted, wherein one melt spinning processes is a POY melt spinning process, and the other is an FDY melt spinning process; the POY melt spinning process obtains polyester POY spinning, and the FDY melt spinning process obtains polyester FDY spinning; (3) the polyester FDY spinning is subjected to drafting to obtain polyester FDY drafting filaments; the polyester FDY drafting filaments and the polyester POY spinning are compounded to form composite filaments, and the composite filaments are shaped to obtain mixed filaments; and (4) the mixedfilaments are subjected to false twisting deformation to obtain the polyester low-elasticity composite filaments. The polyester low-elasticity composite filament not only has a high moisture absorption and sweat releasing effect, a flame retardant effect and an antibacterial effect, but also has high dyeing rate during dyeing, meanwhile, the filament has a fluffy and soft hand feeling, has certainelasticity, and expands the application range thereof.

Description

technical field [0001] The invention belongs to the technical field of composite fiber preparation, in particular to a preparation process of multifunctional polyester low-elasticity composite yarn. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester fiber (polyester) is widely used in clothing fabrics and other non-clothing fields because of its excellent physical and chemical properties. However, polyester fibers have high modulus and no polar groups, and the fabrics woven from them have a hard hand, poor air permeability and hygroscopicity, and low color uptake in the dyeing process. These disadvantages limit its application in fields with high requirements for air permeability, moisture absorption and hand feeling. In addition, the existing polyester low-stretch yarn products are relatively single in variety, and the fabrics woven as raw materials have a single function. Therefore, in addition to improving the dyeability, hand f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04D02G3/32D02G3/34D01D13/00D01D1/06D01D5/08D01F6/92D01F1/10D01F1/07
CPCD01D1/06D01D5/08D01D13/00D01F1/07D01F1/10D01F1/103D01F6/92D02G3/045D02G3/324D02G3/328D02G3/34D10B2331/04
Inventor 肖美君陶然付明娟潘勇勇
Owner 苏州君辉纺织有限公司
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