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Nano silicon dioxide modified polyester low-stretch network yarn

A nano-silica, polyester low-elasticity technology, applied in the field of synthetic fibers, can solve the problems that the properties and functions of polyester fibers cannot fully meet people's requirements, and achieve excellent spinning performance, stable fiber shrinkage, and good reflection ability Effect

Inactive Publication Date: 2012-01-25
JIANGSU YINGXIANG FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the progress of world science and technology and the development of world industry, polyester fiber cannot fully meet people's requirements in terms of performance and function.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation process of modified polyester:

[0040] First, on the continuous polyester equipment, use terephthalic acid (PTA) and ethylene glycol (EG) monomers to continuously and stably meter and feed them into the slurry tank according to the molar ratio of PTA and EG at a ratio of 1:1.25 In beating, add nano-silica, nano-copper oxide, and matting agent titanium dioxide in the beating kettle, wherein the molar ratio of nano-silica to terephthalic acid is 1.95%, and the amount of nano-copper oxide to terephthalic acid is 1.95%. The mol ratio of formic acid is 0.45%, and the mol ratio of the addition of matting agent titanium dioxide and phthalic acid is 0.35%;

[0041] Then, the above-mentioned slurry is continuously and stably transported to the esterification-I and esterification-II reactors, and the stabilizer is continuously added to the esterification-II reactors at the same time, and the esterification rate is controlled to 98.5%, and the viscosity of the melt ...

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PUM

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Abstract

The invention relates to a method for preparing a nano silicon dioxide modified polyester low-stretch network yarn, which comprises the preparation step of condensing and polymerizing modified polyester melt and the POY-DTY (Polyester Pre-Oriented Yarn - Draw Textured Yarn) circular air blowing cooling process. In the preparation step of condensing and polymerizing modified polyester melt, the modified co-polyester melt is prepared from pure terephthalic acid (PTA) and ethylene glycol (EG) monomers as raw materials by adding a nano silicon dioxide modifying agent. The polyester melt is directly transported through a melt and prepared into the modified co-polyester melt through the POY-DTY circular air blowing cooling process. The modified polyester FDY fiber prepared by using the method has good wear resistance, and the reflecting ability to ultraviolet rays is good. The prepared fiber has stable contraction rate, uniform dyeing and excellent spinning performance.

Description

technical field [0001] The invention relates to a synthetic fiber, in particular to a modified polyester low-elastic network yarn. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing fabrics and other non-clothing fields because of its excellent physical and chemical properties. Since its inception, polyester products have also been used by downstream users as the main textile raw material to weave various textiles due to their good drapability, high strength and crispness. With the globalization of the economy and the internationalization of the market, people's requirements for clothing are getting higher and higher. Not only must they be comfortable, but they must also be functional. There is a constant need to improve performance to meet weaving requirements. [0003] In the past ten years, my country's polyester industry has developed rapidly. The output of polyester fiber has grown from 5.165 million...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92C08G63/183C08K3/36
Inventor 沈家康钮真荣赵广兵
Owner JIANGSU YINGXIANG FIBER