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Method for preparing high-uniformity military soft polyester industrial yarn

A technology of uniformity and industrial yarn, applied in the field of preparation of high uniformity military soft polyester industrial yarn, can solve problems such as poor stability and poor fiber uniformity, and achieve high oil film strength, improved fiber quality, and good heat resistance. Effect

Active Publication Date: 2018-04-10
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of poor fiber uniformity and poor stability in the prior art, and to provide a simple method for preparing military soft polyester industrial yarn with high uniformity

Method used

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  • Method for preparing high-uniformity military soft polyester industrial yarn
  • Method for preparing high-uniformity military soft polyester industrial yarn
  • Method for preparing high-uniformity military soft polyester industrial yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A kind of preparation method of military soft polyester industrial yarn with high uniformity, the steps are as follows:

[0063] (1) Preparation of oiling agent for oiling;

[0064] Mix 2-hydroxymethyl-12-crown-4 with potassium dodecyl phosphate, trimethylolpropane laurate and sodium dodecylsulfonate at room temperature and add to 9# mineral oil and uniformly stirred at 40°C for 1 hour to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 2 parts of 9# mineral oil; 10 parts of trimethylolpropane laurate; 2-methylolpropane laurate Base-12-crown-4 is 90 parts; Potassium dodecyl phosphate is 8 parts; Sodium dodecyl sulfonate is 3 parts; The content of crown ether in the prepared oil is 79.6wt%. The high temperature resistance of the agent is excellent, and the thermal weight loss after heat treatment at 200°C for 2 hours is 14.5wt%; the viscosity of the oil agent is low, and the kinematic viscosity is 29.6mm at (50±0.01)°C 2 / s, ...

Embodiment 2

[0069] A kind of preparation method of military soft polyester industrial yarn with high uniformity, the steps are as follows:

[0070] (1) Preparation of oiling agent for oiling;

[0071] Mix 15-crown ether-5 with potassium tridecyl alcohol polyoxyethylene ether phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate at room temperature and add to 10# mineral oil and uniformly stirred at 43°C for 1.5h to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 2 parts for 10# mineral oil; 15 parts for trimethylolpropane laurate; 15 parts for 15-crown Ether-5 is 70 parts; isomeric tridecanol polyoxyethylene ether phosphate potassium salt is 10 parts; sodium pentadecylsulfonate is 7 parts; the content of crown ether in the prepared oil agent is 67.30wt%, The oil agent has excellent high temperature resistance, and the thermal weight loss is 13wt% after heat treatment at 200°C for 2 hours; the viscosity of the oil agent is low, a...

Embodiment 3

[0076] A kind of preparation method of military soft polyester industrial yarn with high uniformity, the steps are as follows:

[0077] (1) Preparation of oiling agent for oiling;

[0078] Mix 2-hydroxymethyl-15-crown-5 with tetradecyl alcohol phosphate potassium salt, trimethylolpropane laurate and sodium pentadecylsulfonate at room temperature and add to 11# mineral in oil and uniformly stirred at 48°C for 3 hours to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 8 parts for 11# mineral oil; 10 parts for trimethylolpropane laurate; 10 parts for 2-hydroxy 85 parts of methyl-15-crown-5; 11 parts of potassium tetradecyl alcohol phosphate; 5 parts of sodium pentadecylsulfonate; the content of crown ether in the prepared oil is 70.83wt% , the high temperature resistance of the oil is excellent, the thermal weight loss is 11wt% after heat treatment at 200°C for 2 hours; the viscosity of the oil is low, at (50±0.01)°C, the kinematic vi...

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Abstract

The invention relates to a method for preparing high-uniformity military soft polyester industrial yarn. Through polyester solid-phase polycondensation tackifying, melting, metering, extrusion, cooling, oil coating, stretching, hot setting and winding, the high-uniformity military soft polyester industrial yarn is prepared. In cooling, vertical height is kept, the cross-sectional area of a slow cooling chamber is increased, the plate surface temperature of a spinneret plate in the slow cooling chamber is kept through a thermal insulation method, an oil agent used in oil coating contains 67.30to 85.58 wt% of crown ether, in oil agent use, an emulsion with a concentration of 13 to 18 wt% is prepared from water, and the high-uniformity military soft polyester industrial yarn has a breaking strength CV value of 2.5% or less and single filament fineness of 3.0 dtex or less. The method prepares the high-uniformity military soft polyester industrial yarn, has simple and reasonable processesand has a very high promotion value.

Description

technical field [0001] The invention belongs to the field of fiber preparation, and relates to a method for preparing military soft polyester industrial yarn with high uniformity. 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. Polyester 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 from it has wrinkle resistance. And crispness and other advantages, so polyester fiber is widely used in clothing and home textiles and other fields. [0003] Due to the small dielectric constant, low moisture regain and high friction coefficient of most PET fibers, spinning oil must be us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F6/62D06M13/11D06M13/02D06M13/224D06M13/292D06M15/53D06M13/256D01D5/088D01D13/00D06M101/32
CPCD01D5/088D01D13/00D01F6/62D01F6/92D06M13/02D06M13/11D06M13/224D06M13/256D06M13/292D06M15/53D06M2101/32
Inventor 尹立新张烨杨超明王力军王永锋
Owner JIANGSU HENGLI CHEM FIBER
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