Coarse-denier porous polyester fiber and preparation method thereof

A porous polyester and fiber technology, applied in the direction of fiber type, fiber treatment, single-component polyester rayon, etc., can solve the problems of hairiness, easy breaking, short heating time, etc., to reduce damage and smoothness. The effect of raising and lowering surface tension

Active Publication Date: 2015-11-04
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, the contact heating space between coarse denier porous polyester fiber and hot roller is small, the heating time is short, it is not easy to heat uniformly, and the surface area of ​​coarse denier fiber is large, the tension of spinning, drafting and winding is large, and it is easy to break the filament and produce hairiness. What kind of oil agent, improved wettability and concentration of the oil agent will play a greater role in ensuring the quality of the product

Method used

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  • Coarse-denier porous polyester fiber and preparation method thereof
  • Coarse-denier porous polyester fiber and preparation method thereof
  • Coarse-denier porous polyester fiber and preparation method thereof

Examples

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Embodiment 1

[0053] A method for preparing coarse-denier porous polyester fibers. First, an oil-on oil is prepared. The specific preparation steps are: blending the starter butanol and strong alkali potassium hydroxide, then raising the temperature 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...

Embodiment 2

[0067] A method for preparing coarse-denier porous polyester fibers. First, an oil-on 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, adsorp...

Embodiment 3

[0080] A method for preparing coarse-denier porous polyester fibers. First, an oil-on 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...

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Abstract

The invention relates to a coarse-denier porous polyester fiber and a preparation method thereof. The coarse-denier porous polyester fiber is mainly prepared by the steps of melt spinning of polyester through multiple spinneret holes, application of an oiling agent, stretching and winding, wherein the oiling agent at least comprises fluorine-containing polyether, the mass of which is more than or equal to 45% of that of the oiling agent, the fluorine-containing polyether is a random copolymer of ethylene oxide, [(1,1,2,2-tetrafluoroethoxy) methyl] oxirane and propylene oxide, and the structural formula of the random copolymer is shown in the specification. The preparation method comprises the steps of metering, extruding, cooling, oiling and high-speed winding of polyester, thereby obtaining the coarse-denier porous polyester fiber. The coarse-denier porous polyester fiber is endowed with soft and elegant silk light sensation. Not only does the porous polyester fiber have excellent optical property, but also a fabric has effect of thick hand feeling and good fluffiness and breathability since a large quantity of fibers cannot be arranged closely and interspaces are correspondingly enlarged.

Description

technical field [0001] The invention relates to a coarse denier porous 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] Coarse denier porous yarns such as 150D / 144F, 150D / 288F, 150D / 384F, etc., have a large total fiber fineness, a large number of fiber F, soft hand feeling, good fabric drapability, good heat retention and moisture absorption,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/53D06M13/02D06M13/292D06M13/256D06P1/16D06P1/44D01F6/62C08G65/28D06M101/32
Inventor 柴森光韦开顺苏琦
Owner JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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