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Method for preparing high-comfortable composite functional polyester fiber

A composite function, polyester fiber technology, applied in the direction of fiber chemical characteristics, single-component polyester rayon, rayon manufacturing, etc., can solve the problems of easy pilling, easy to generate static electricity, difficult to dye, etc.

Active Publication Date: 2012-04-11
JIANGSU ZHONGLU TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with various natural fibers, there are still many shortcomings: hard hand feeling, poor hygroscopicity, poor UV resistance, easy to generate static electricity, easy to pilling, difficult to dye, etc.
The disadvantage of this method is: benzotriazole is an organic phenolic compound, which exists as a protonic acid under high temperature conditions, which can destroy the inorganic nano-powder TiO 2 and Al 2 o 3 or SiO 2 Surface organic treatment agent, leading to the agglomeration of inorganic nanopowders in the pre-aggregation process
[0009] In summary, the existing technologies mainly rely on the huge specific surface area of ​​inorganic nano-powders to diffusely scatter ultraviolet rays to produce an anti-ultraviolet effect, and the stability and efficiency of the anti-ultraviolet effect need to be improved. Starting from the mechanism, the preparation of polyester with better anti-ultraviolet effect and good spinnability

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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  • Method for preparing high-comfortable composite functional polyester fiber
  • Method for preparing high-comfortable composite functional polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a method for preparing a high-comfort composite functional polyester chip, which includes the following steps:

[0040] (1), Primary esterification reaction section: Take 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of 1,4-cyclohexanedicarboxylic acid, add 70 liters of polyester experimental equipment, and stir After uniformity, start to raise the temperature and pressurize to 0.3Mpa to carry out esterification. The esterification temperature is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and end the reaction.

[0041] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 2500 that has been heated and melted The diol was added into the reactor under the protec...

Embodiment 2

[0044] This embodiment provides a method for preparing a high-comfort composite functional polyester chip, which includes the following steps:

[0045] (1), primary esterification reaction section: take 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of 5-methylisophthalic acid, add 70 liters of polyester experimental equipment, and stir evenly Afterwards, start to raise the temperature and pressurize to 0.3Mpa to carry out esterification. The esterification temperature is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and complete the reaction.

[0046] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 2500 that has been heated and melted The diol was added into the reactor under the protecti...

Embodiment 3

[0049] This embodiment provides a method for preparing a high-comfort composite functional polyester chip, which includes the following steps:

[0050] (1), primary esterification reaction section: get 18kg of purified terephthalic acid (PTA), 7.5kg of ethylene glycol (EG) and 225g of adipic acid, add 70 liters of polyester experimental equipment, after stirring evenly, start to heat up and Pressurize to 0.3Mpa to carry out esterification, and the temperature of esterification is controlled at 255°C to 260°C. After the esterification is completed, return to normal pressure and complete the reaction.

[0051] (2) Secondary esterification reaction section: After the primary esterification is completed, ethylene glycol is first added to lower the temperature of the reactor to 230-235°C, and then 450g of polyethylene glycol with a number average molecular weight of 3000 that has been heated and melted is added The diol was added into the reactor under the protection of nitrogen, a...

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Abstract

The invention relates to a method for preparing a high-comfortable composite functional polyester fiber, comprising the steps of: first esterification reaction section, secondary esterification reaction section, polymerization reaction process and spinning process, wherein aliphatic dicarboxylic acid and / or non-centrosymmetrically aromatic dicarboxylic acid is led into the first esterification reaction section to serve as a third monomer; flexible polyethylene glycol is led into the secondary esterification reaction section to serve as a fourth monomer; after finishing the esterification reactions, hindered amine light stabilizer and hindered phenolic antioxidant which are respectively prepared by taking acetic acid and ethylene glycol as solvents and hydroxyl silicone oil are added; after finishing pre-polymerization and before final polymerization of the polymerization reaction process, ultraviolet light absorber and antistatic agent are added; and before finishing the spinning process, polyester slices are performed pre-crystallization and drying; fibers with odd-shaped cross sections of three-leaf, cross, five-leaf and the like are prepared by melt spinning. The obtained polyester fiber is anti-ultraviolet light, antistatic, anti-pilling and has wet-absorbing quick-drying performance; and the fabric has high comfort.

Description

technical field [0001] The invention relates to a preparation method of a high-comfort composite functional polyester fiber. Background technique [0002] The development of comfortable polyester fiber, after the rapid development of fine denier and ultra-fine denier in the chemical fiber industry, has become a key area of ​​development in the international and domestic industries in recent years. Since the international financial crisis in 2008, developed countries have accelerated the upgrading of textile technology In the footsteps of China, a variety of high-quality functional fiber fabrics have been put on the market in batches, and great progress has been made in the fine finishing and processing of natural fibers including cotton, wool, silk, and hemp. The quality and function of fabrics have achieved leapfrog upgrades. At the same time, the breakthrough of natural fiber pulp spinning technology has also brought a huge impact on the market of polyester chemical fiber ...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/09D01F1/10C08G63/695C08G63/672C08G63/78
Inventor 边树昌
Owner JIANGSU ZHONGLU TECH DEV
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