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

A kind of quaternary copolyester fiber and preparation method thereof

A quaternary copolyester and fiber technology, which is applied in the field of polyester fiber, can solve the problems of fiber hygroscopicity and insignificant improvement of coloring property, and achieve the improvement of hydrophilicity and dyeability, and the improvement of hydrophilicity and dyeability , Improve the effect of spinnability

Active Publication Date: 2016-05-18
嘉兴逸鹏化纤有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since pentaerythritol does not provide redundant hydroxyl groups for polyester fiber molecules, the hygroscopicity and coloring properties of the fibers are not significantly improved after adding polypentylthritol, and it is still necessary to introduce some hydrophilic groups for modification.

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
  • A kind of quaternary copolyester fiber and preparation method thereof
  • A kind of quaternary copolyester fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) beating: get 744.0g (12mol) ethylene glycol and sorbitol 2.9g (0.016mol), pentaerythritol 2.9g (about 0.021mol) dissolve and mix, then mix its mixture with the PTA of 1660g (10mol), add catalyst Ethylene glycol antimony 20g, stabilizer trimethyl phosphate 4g, stir well, and transport to the esterification kettle;

[0028] (2) Esterification: carry out continuous esterification in the esterification (I) and (II) kettles, the esterification temperature is controlled at 240 ° C, the pressure is 100KPa, the esterification rate reaches more than 93.5%, and is transported to the polycondensation kettle;

[0029] (3) Polycondensation: during polycondensation, the polycondensation temperature is controlled at 280°C, vacuumed to 60MPa, and polycondensation to the target viscosity (intrinsic viscosity 0.66);

[0030] (4) The molten quaternary copolyester is sent to a filter for filtration to obtain quaternary copolyester fibers. After metering, it enters the spinning assembly...

Embodiment 2

[0033] (1) beating: get 744.0g (12mol) ethylene glycol and sorbitol 7.8g (0.048mol), pentaerythritol 5.8g (about 0.042mol) dissolve and mix, then mix its mixture with the PTA of 1660g (10mol), add catalyst Ethylene glycol antimony 10g, stabilizer trimethyl phosphate 4g, mix well, and transport to the esterification kettle;

[0034] (2) Esterification: carry out continuous esterification in the esterification (I) and (II) kettles, the esterification temperature is controlled at 237 ° C, the pressure is 100KPa, the esterification rate reaches more than 93.5%, and is transported to the polycondensation kettle;

[0035] (3) Polycondensation: during polycondensation, the polycondensation temperature is controlled at 270°C, vacuumed to 80MPa, and polycondensation to the target viscosity (intrinsic viscosity 0.65);

[0036] (4) The molten quaternary copolyester is sent to the filter for filtration to obtain quaternary copolyester fibers. After metering, it enters the spinneret assemb...

Embodiment 3

[0039] (1) Beating: get 744.0g (12mol) of ethylene glycol and 5.8g (0.032mol) of sorbitol, 0.29g (0.021mol) of pentaerythritol, dissolve and mix, then mix the mixture with 1660g (10mol) of PTA, add a catalyst Ethylene glycol antimony 2g, stabilizer trimethyl phosphate 0.4g, stir well, and transport to the esterification kettle;

[0040] (2) Esterification: continuous esterification is carried out in the esterification (I) and (II) kettles, the esterification temperature is controlled at 239 ° C, the pressure is 100KPa, the esterification rate reaches more than 93.5%, and is transported to the polycondensation kettle;

[0041](3) Polycondensation: During polycondensation, the polycondensation temperature is controlled at 290°C, vacuumed to 40MPa, and polycondensed to the target viscosity (intrinsic viscosity 0.67);

[0042] (4) The molten quaternary copolyester is fed into the filter to filter to obtain the quaternary copolyester fiber. After metering, it enters the spinneret a...

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

No PUM Login to View More

Abstract

The invention relates to the technical field of polyester fiber, is used for solving the polyester fiber hydrophilicity and dyeability problems at present, and provides a quaternary co-polyester fiber and a preparation method thereof. The quaternary co-polyester fiber consists of pure terephthalic acid (PTA), ethylene glycol, sorbitol, pentaerythritol and an auxiliary agent, wherein the molar ratio of ethylene glycol, sorbitol and pentaerythritol is 1:0.0001-0.005:0.0001-0.005, the alcohol-acid molar ratio is 1.1-1.5:1, the mass content of the auxiliary agent in the quaternary co-polyester is 0.01-1%. On a basis of no fundamental change of polyester characteristics, the performance of the polyester fiber is optimized, and the spinnability, hygroscopicity and dyeability of the polyester fiber are significantly improved.

Description

technical field [0001] The invention relates to the technical field of polyester fibers, in particular to a micro-added quaternary copolyester fiber and a preparation method thereof. Background technique [0002] Polyester fiber has the advantages of high strength, good wear resistance, smooth surface, heat-setting, stable physical and chemical properties, etc., and is widely used in the field of clothing. Although polyester fiber has high production efficiency and more excellent wearing performance, human beings have an endless pursuit of product cost and wearing comfort. Therefore, further improving the processability of polyester fibers in the process of spinning and the hygroscopicity and dyeability of finished fibers have always been the goals of researchers. However, in the process of hydrophilicity and dyeability of modified polyesters, a large amount of modified monomers are often added, resulting in serious damage to the molecular structure of polyesters. Therefor...

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): D01F6/84D01D5/08D01D5/16C08G63/20
Inventor 李龙真缪国华
Owner 嘉兴逸鹏化纤有限公司
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