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A kind of porous ultra-bright polyester fiber and its preparation method

A polyester fiber, bright technology, applied in fiber processing, chemical post-processing of synthetic polymer rayon filament, filament/thread forming, etc. Sexual, ideal fluffy effect

Active Publication Date: 2020-11-06
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of porous ultra-bright polyester industrial yarn and its preparation method in order to overcome the problem that the PET fiber in the prior art cannot have the characteristics of high bulkiness, good air permeability and super bright flash.

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 porous ultra-bright polyester fiber and its preparation method
  • A kind of porous ultra-bright polyester fiber and its preparation method
  • A kind of porous ultra-bright polyester fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A kind of porous ultra-bright polyester fiber, the preparation method is:

[0064] (1) preparation of oiling agent for oiling;

[0065] Mix 2-hydroxymethyl-12-crown-4 with potassium dodecyl phosphate, trimethylolpropane laurate and sodium hexadecylsulfonate at room temperature and add to 12# mineral oil and uniformly stirred at 40°C for 2.5h to obtain an oil agent; the addition amount of each component is as follows in parts by weight: 5 parts of 12# mineral oil; 95 parts of 2-hydroxymethyl-12-crown-4; 12 9 parts of potassium alkyl phosphate; 2 parts of sodium hexadecyl sulfonate. The content of crown ether in the prepared oil is 85.58wt%. The oil has excellent high temperature resistance. After heat treatment at 200°C for 2 hours, the thermal weight loss is 9wt%. The viscosity of the oil is low. When the kinematic viscosity is 29.5mm 2 / s, the kinematic viscosity after the concentration of 10wt% emulsion is configured with water is 0.93mm 2 / s, the oil film strengt...

Embodiment 2

[0070] A kind of porous ultra-bright polyester fiber, the preparation method is:

[0071] (1) Preparation of oil preparation for oiling; 15-crown ether-5 and isomeric tridecyl alcohol polyoxyethylene ether phosphate potassium salt, trimethylolpropane laurate and sodium dodecylsulfonate at normal temperature After mixing evenly at low temperature, add it to 13# mineral oil and stir evenly at 52°C for 2 hours to obtain an oil agent; in parts by weight, the addition amount of each component is as follows: 10 parts of 13# mineral oil; trimethylolpropane lauric acid 5 parts of ester; 70 parts of 15-crown ether-5; 8 parts of isomeric tridecyl polyoxyethylene ether phosphate potassium salt; 6 parts of sodium dodecylsulfonate. The crown ether content in the prepared oil is 70.70wt%. The oil has excellent high temperature resistance. After heat treatment at 200°C for 2 hours, the thermal weight loss is 13.5wt%. The viscosity of the oil is low, at (50 ± 0.01) At ℃, the kinematic viscos...

Embodiment 3

[0076] A kind of porous ultra-bright polyester fiber, the preparation method is:

[0077] (1) Oil preparation for oiling; 2-hydroxymethyl-15-crown-5 and potassium salt of tetradecyl phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate After mixing evenly at room temperature, add it to 11# mineral oil and stir evenly at 48°C for 3 hours to obtain an oil agent; in parts by weight, the addition amount of each component is as follows: 8 parts of 11# mineral oil; trimethylolpropane lauryl 10 parts of acid ester;

[0078] 2-Hydroxymethyl-15-crown-585 parts; Tetradecyl phosphate potassium salt 11 parts; Sodium pentadecylsulfonate 5 parts. The content of crown ether in the prepared oil is 70.83wt%. The oil has excellent high temperature resistance. After heat treatment at 200°C for 2 hours, the thermal weight loss is 11wt%. The viscosity of the oil is low. When the kinematic viscosity is 30.1mm 2 / s, the kinematic viscosity after the concentration is 10wt% emulsion ...

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Abstract

The invention relates to a porous ultra-bright polyester fiber and a preparation method thereof. The preparation method comprises the steps that polyester melt undergoes metering, composite spinneretextruding, cooling, oiling, stretching, heat setting and winding, wherein a composite spinneret is provided with a triangular spinneret hole and a --shaped spinneret hole, the ratio of micropore lengths of the triangular spinneret hole and the --shaped spinneret hole is equal to the product of the equivalent diameter ratio and the coefficient K, the equivalent diameter is the ratio of the cross sectional area of the spinneret hole to the perimeter of the cross section, and the value range of the coefficient K is 0.97 to 1.03; an oiling agent for oiling contains crown ether, and the crown ethercontent is 67.30-85.58wt%. The preparation method is simple and reasonable, and the smooth spinning of the fiber is achieved. The prepared porous ultra-bright polyester fiber has a fineness of 75-150dtex, a breaking strength larger than or equal to 3.8 cN / dtex and an oil content of 0.90+ / -0.20%, a glossiness larger than or equal to 80% and a full-package rate larger than or equal to 99%.

Description

technical field [0001] The invention belongs to the field of fiber preparation, and relates to a porous super bright polyester fiber and a preparation method thereof. Background technique [0002] Since the appearance of polyethylene terephthalate (PET) fiber, it has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fiber in the world. PET fiber has a series of excellent properties such as high breaking strength, high elastic modulus, moderate resilience, excellent heat setting performance, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric prepared by it has anti-wrinkle and With good stiffness and other advantages, it is widely used in the fields of fiber, bottle packaging, film and sheet, etc. The output is increasing year by year, and the industry status has been significantly improved. However, due to the high crystallinity and compact structure of...

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 Patents(China)
IPC IPC(8): D01D5/253D01D5/30D01D5/247D01F11/08
CPCD01D5/247D01D5/253D01D5/30D01F11/08D10B2331/04
Inventor 王山水王雪张建光熊克陈锋
Owner JIANGSU HENGLI CHEM FIBER
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