Preparation method of heat-generating polyester fibers

The technology of polyester fiber and auxiliary agent is applied in the field of preparation of heat-generating polyester fiber, which can solve the problem that the fabric cannot meet the requirements, and achieve the effects of good heating effect, good toughness and good spinnability.

Active Publication Date: 2017-03-29
ZHEJIANG HENGYI HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the heat-retaining functional fabrics cannot meet the requirements, the present invention proposes a method for preparing heat-generating polyester fibers. The prepared polyester has good toughness, rigidity and thermal properties, and the fibers have good spinnability , good heating effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 1660g (10mol) of purified terephthalic acid (PTA), 682g (11mol) of ethylene glycol, 15g of ethylene glycol antimony, 7g of trimethyl phosphate and 0.46g of titanium nitride nano-powder dispersion into the polymerization kettle for reaction. The heating temperature in the esterification stage is 240°C, and the heating time is 60min; the heating temperature in the polycondensation stage is 270°C, the heating time is 90min, and the vacuum degree in the polycondensation stage is 60Pa. Then spinning on the equipment, the spinning temperature is 290°C, and the spinning speed is 3100m / min, to obtain a kind of heat-generating polyester fiber 1.

[0016] After testing, the far-infrared emissivity of the heat-generating polyester fiber 1 is 89%.

Embodiment 2

[0018] Add 1660g (10mol) of purified terephthalic acid (PTA), 930g (15mol) of ethylene glycol, 0.25g of ethylene glycol antimony, 0.05g of trimethyl phosphate and 0.8g of titanium nitride nano-powder dispersion into the polymerization kettle reaction. The heating temperature in the esterification stage is 220°C, and the heating time is 80min; the heating temperature in the polycondensation stage is 280°C, the heating time is 80min, and the vacuum degree in the polycondensation stage is 70Pa. Then spinning on the equipment, the spinning temperature is 270°C, and the spinning speed is 3000m / min, to obtain a kind of heat-generating polyester fiber 2.

[0019] After testing, the far-infrared emissivity of the heat-generating polyester fiber 2 is 91%.

Embodiment 3

[0021] Add 1660g (10mol) of purified terephthalic acid (PTA), 800g (12.9mol) of ethylene glycol, 2.5g of ethylene glycol antimony, 2.5g of trimethyl phosphate and 1g of titanium nitride nano-powder dispersion into the polymerization kettle reaction. The heating temperature in the esterification stage is 230°C, and the heating time is 120min; the heating temperature in the polycondensation stage is 290°C, the heating time is 90min, and the vacuum degree in the polycondensation stage is 50Pa. Then spinning on the equipment, the spinning temperature is 260°C, and the spinning speed is 3200m / min, to obtain a kind of heat-generating polyester fiber 3.

[0022] After testing, the far-infrared emission rate of the heating polyester fiber 3 is 92%.

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Abstract

The invention relates to the technical field of polyester differential fibers, aims to solve the problem that warm-keeping functional fabric cannot satisfy requirements, and provides a preparation method of heat-generating polyester fibers. The preparation method includes: adding purified terephthalic acid, ethylene glycol, auxiliaries and titanium nitride nano powder into a polymerization kettle, performing reaction, and spinning. The prepared polyester fibers are good in toughness, rigidity and heat performance, good in spinnability and good in heat-generating effect.

Description

technical field [0001] The invention relates to the technical field of polyester differentiated fibers, in particular to a method for preparing heat-generating polyester fibers. Background technique [0002] Polyester is an important variety of synthetic fibers. It is made of purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) as raw materials through esterification or transesterification and polycondensation reactions. The obtained high polymer, polyethylene terephthalate (PET), is made into fibers by spinning and post-processing. With the development of the economy and the improvement of living standards, people's requirements for wearing comfort continue to rise, and simple functional fabrics can no longer meet the requirements, which puts forward higher requirements for the research and development of new products. [0003] At present, most thermal polyester fibers are added with tourmaline powder. For example, the application numbe...

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): D01F6/92D01F1/10C08G63/183
CPCC08G63/183D01F1/10D01F6/92
Inventor 王宝健江力
Owner ZHEJIANG HENGYI HIGH TECH MATERIAL
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