Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing polyester fiber having compound functions of pilling resistance, ageing resistance and normal-pressure cationic dyeability

A composite function, polyester fiber technology, applied in the direction of single-component polyester rayon, etc., to achieve good anti-pilling performance

Inactive Publication Date: 2013-04-17
WUJIANG GANGYANG CHEM FIBER +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there is no relevant report about the polyester fiber with anti-pilling, anti-aging, normal pressure cationic dyeable composite functions and its preparation method.

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing polyester fiber having compound functions of pilling resistance, ageing resistance and normal-pressure cationic dyeability
  • Method for preparing polyester fiber having compound functions of pilling resistance, ageing resistance and normal-pressure cationic dyeability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0032] (1) One-time esterification reaction process: Take 18kg of purified terephthalic acid (PTA) and 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, stir evenly, start to heat up and pressurize to 0.3Mpa , carry out esterification, the esterification temperature is controlled at 255 ~ 260 ° C, until the esterification water is completed, return to normal pressure, and end the reaction.

[0033] (2) Transesterification reaction process: After the primary esterification is completed, add ethylene glycol to cool down and depolymerize, control the temperature at 220-245°C for 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, the transesterification reaction is carried out, so that the unreacted SIPM can complete the transester...

Embodiment 2

[0037] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0038] (1) One-time esterification reaction process: take 18kg of purified terephthalic acid (PTA), 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, stir evenly, start to heat up and pressurize to 0.3Mpa , carry out esterification, the esterification temperature is controlled at 255-260 °C, until the esterification water is completed, return to normal pressure, and end the reaction.

[0039] (2) Transesterification reaction process: After the primary esterification is completed, add ethylene glycol to cool down and depolymerize, control the temperature at 220-245°C for 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, the transesterification reaction is carried out, so that the unreacted SIPM can complete the transesterificat...

Embodiment 3

[0043] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0044] (1) One-time esterification reaction process: take 18kg of purified terephthalic acid (PTA), 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, stir evenly, start to heat up and pressurize to 0.3Mpa , carry out esterification, the esterification temperature is controlled at 255-260 °C, until the esterification water is completed, return to normal pressure, and end the reaction.

[0045] (2) Transesterification reaction process: After the primary esterification is completed, add ethylene glycol to cool down and depolymerize, control the temperature at 220-245°C for 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, the transesterification reaction is carried out, so that the unreacted SIPM can complete the transesterificat...

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
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a polyester fiber having compound functions of pilling resistance, ageing resistance and normal-pressure cationic dyeability, comprising a primary esterification reaction step, an ester exchange reaction step, a secondary esterification reaction step and a polymerization reaction step, wherein three monomers are added in the ester exchange reaction step; a hindered amine light stabilizer and a hindered phenol antioxidant as well as hydroxyl silicone oil are added after the secondary esterification reaction and a pre-polymerization reaction; and pre-crystallization and drying are performed on polyester slices before a spinning step. Fabrics made of the polyester fibers of the invention are good in pilling resistance and good in light fastness, and can be dyed into various beautiful colors by means of the normal-pressure cationic dyeability of the fibers, thereby meeting the uniform requirements of the present high-grade spring-summer dresses for functionality and colors; the obtained polyester fibers also can be subjected to apposition dyeing with wool; and as being blended with wool, good dressing effect can be obtained. The polyester fiber of the invention is an important supplement for the cationic dyeable polyester market at present in China.

Description

technical field [0001] The present invention relates to a preparation method of polyester fiber, in particular to a preparation method of polyester fiber with anti-pilling, anti-aging, normal-pressure cationic dyeable composite functions. Background technique [0002] In recent years, with the rapid development of domestic polymerization technology, my country's functional polyester synthesis technology has made great progress. Domestic cationic dyeable polyester has formed a scale of nearly 400,000 tons, and its differentiated varieties emerge in endlessly. There is a momentum of booming production and sales, but we should also see that there is a considerable gap between my country's cationic polyester synthesis technology and application range and developed countries. The main application fields of my country's cationic dyeable polyester fibers are decorative fabrics and fabrics. Garment moldings, which have a great distance from the original intention of the development o...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/688
Inventor 王建荣
Owner WUJIANG GANGYANG CHEM FIBER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com