A kind of superfine denier polyester fiber and preparation method thereof

A polyester fiber, ultra-fine denier technology, applied in fiber processing, dyeing, melt spinning, etc., can solve the problems of industrial production, poor tow cohesion, broken ends, etc., to reduce damage, improve smoothness, reduce The effect of surface tension

Active Publication Date: 2018-01-05
JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, currently domestic ultra-fine denier products are limited by production equipment and technology. The minimum linear density of fibers can only reach about 15D, and the product quality is generally unstable. The total density of drawn yarn products cannot be further refined and industrialized. It greatly limits the development of fabrics in the direction of thinner, softer and higher density
[0005] In the production of ultra-fine polyester fiber, because the overall density of the fiber is too low, it is very easy to be damaged during spinning and drawing. Hair and broken ends

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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  • A kind of superfine denier polyester fiber and preparation method thereof
  • A kind of superfine denier polyester fiber and preparation method thereof
  • A kind of superfine denier polyester fiber and preparation method thereof

Examples

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Embodiment 1

[0053] A method for preparing ultra-fine polyester fiber, firstly preparing an oiling oil agent, the specific preparation steps are: blending the initiator butanol and strong alkali potassium hydroxide, then heating up to 105°C, and then adding and mixing Homogeneous ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl] ethylene oxide and propylene oxide, the amount of butanol is ethylene oxide, [(1,1 , 2,2-tetrafluoroethoxy) methyl] 1‰ of the total mass of ethylene oxide and propylene oxide, the amount of strong alkali potassium hydroxide is ethylene oxide, [(1,1,2,2 -1‰ of the total mass of -tetrafluoroethoxy)methyl]oxirane and propylene oxide, ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl]epoxide The molar ratio of ethane and propylene oxide is 10:1:20, the polymerization reaction is carried out under the protective atmosphere of nitrogen atmosphere, the reaction pressure is 0.4MPa, and after the relative molecular weight is 1000, the fluorine-containing polyether is obt...

Embodiment 2

[0067] A method for preparing ultrafine denier polyester fibers. Firstly, an oiling oil is prepared. The specific steps are: blending the initiator butanol and strong alkali sodium hydroxide, then raising the temperature to 125°C, and then adding the well-mixed Ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl] ethylene oxide and propylene oxide, the amount of butanol is ethylene oxide, [(1,1,2 , 2-tetrafluoroethoxy) methyl] 5‰ of the total mass of ethylene oxide and propylene oxide, the amount of strong alkali sodium hydroxide is ethylene oxide, [(1,1,2,2-tetra 5‰ of the total mass of fluoroethoxy)methyl]oxirane and propylene oxide, ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl]oxirane The molar ratio of propylene oxide and propylene oxide is 20:3:30, and the polymerization reaction is carried out under the protective atmosphere of an inert gas atmosphere, the reaction pressure is 0.5MPa, and after reaching a relative molecular weight of 4000, neutralization, adsorption...

Embodiment 3

[0081] A preparation method of superfine denier polyester fiber. Firstly, an oiling oil is prepared. The specific steps are: blending the initiator butanol and strong alkali sodium hydroxide, then raising the temperature to 115°C, and then adding the well-mixed Ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl] ethylene oxide and propylene oxide, the amount of butanol is ethylene oxide, [(1,1,2 , 2-tetrafluoroethoxy) methyl] 2‰ of the total mass of ethylene oxide and propylene oxide, the amount of strong alkali sodium hydroxide is ethylene oxide, [(1,1,2,2-tetra 1.5‰ of the total mass of fluoroethoxy)methyl]oxirane and propylene oxide, ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl]oxirane The molar ratio of propylene oxide and propylene oxide is 12:1:30, and the protective atmosphere is an inert gas atmosphere to carry out polymerization reaction, the reaction pressure is 0.8MPa, and after reaching a relative molecular weight of 3000, neutralization, adsorption, vacuum d...

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 relates to an ultra-fine denier polyester fiber and a preparation method thereof, and an ultra-fine denier polyester fiber. The ultra-fine denier polyester fiber mainly consists of polyester melt spinning through spinneret holes, oiling agent and high-speed It is prepared by winding; the oil agent of the oiling agent includes at least fluorine-containing polyether, and the mass of the fluorine-containing polyether is greater than or equal to 45% of the mass of the oil agent; the fluorine-containing polyether is ethylene oxide, [(1,1,2,2-tetrafluoroethoxy)methyl]random copolymer of ethylene oxide and propylene oxide, its structural formula is: the preparation method of the present invention is to measure polyester, extrude Extraction, cooling, oiling, drawing, heat setting and high-speed winding to produce ultra-fine denier polyester fibers. The ultra-fine denier polyester fiber of the present invention has excellent characteristics such as soft hand, high flexibility, soft luster, high water and oil absorption, high density, high specific surface area, high thermal insulation performance, etc., and with the development of weaving, printing and dyeing technology, its More potential features are also being discovered day by day.

Description

technical field [0001] The invention relates to a superfine denier polyester fiber and a preparation method thereof. Background technique [0002] Since its appearance, polyethylene terephthalate (PET) fiber has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fibers in the world. Polyester fiber has a series of excellent properties such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric has the advantages of wrinkle resistance and good stiffness, so , Polyester fibers are widely used in clothing, home textiles and other fields. [0003] With the continuous improvement of people's living standards, people have put forward higher requirements for the comfort, functionality, diversification and taste of clothing. At present, the general fiber density of polyester ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F11/08D01D13/00D01D5/08D01D5/096D06M15/53D06M13/02D06M13/292D06M13/256C08G65/22D06P1/16D06P3/54D06M101/32
Inventor 王永锋韦开顺朱冬妹
Owner JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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