Preparation method for polyester fiber with composite ultraviolet resisting and cationic dyeing functions

A technology with anti-ultraviolet and compound functions, which is applied in the direction of fiber chemical characteristics, single-component polyester rayon, rayon manufacturing, etc., to achieve good spinnability, improved anti-aging performance, and reasonable and effective anti-violet mechanism.

Active Publication Date: 2013-04-17
JIANGSU GANGHONG FIBER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there is no relevant report about the polyester fiber with anti-ultraviolet, cationic dyeable composite function and its preparation method.

Method used

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  • Preparation method for polyester fiber with composite ultraviolet resisting and cationic dyeing functions
  • Preparation method for polyester fiber with composite ultraviolet resisting and cationic dyeing functions
  • Preparation method for polyester fiber with composite ultraviolet resisting and cationic dyeing functions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0028] (1), esterification reaction process: take 18kg of purified terephthalic acid (PTA), 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, after stirring evenly, start to heat up and pressurize to 0.3Mpa, Esterification is carried out, and the esterification temperature is controlled at 255-260°C. After the esterification is completed, the water is discharged, and the normal pressure is returned to complete the reaction.

[0029] (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, and take 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, a secondary transesterification reaction is carried out to complete the transesterificatio...

Embodiment 2

[0032] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0033] (1), esterification reaction process: take 18kg of purified terephthalic acid (PTA), 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, after stirring evenly, start to heat up and pressurize to 0.3Mpa, Esterification is carried out, and the esterification temperature is controlled at 255-260°C. After the esterification is completed, the water is discharged, and the normal pressure is returned to complete the reaction.

[0034] (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, and take 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, a secondary transesterification reaction is carried out to complete the transesterificatio...

Embodiment 3

[0037] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0038] (1), esterification reaction process: take 18kg of purified terephthalic acid (PTA), 7.05kg of ethylene glycol (EG), add 70 liters of polyester experimental equipment, after stirring evenly, start to heat up and pressurize to 0.3Mpa, Esterification is carried out, and the esterification temperature is controlled at 255-260°C. After the esterification is completed, the water is discharged, and the normal pressure is returned to complete 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, and take 0.4-1.0 hours, then add 1400g of three-monomer solution, stir evenly, and heat up to At 255°C, a secondary transesterification reaction is carried out to complete the transesterificatio...

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Abstract

The invention relates to a preparation method for a polyester fiber with composite ultraviolet resisting and cationic dyeing functions. The preparation method comprises an esterification reaction procedure, an interesterification reaction procedure, a polymerization reaction procedure and a spinning procedure, wherein three monomers are added in the interesterification reaction procedure; after esterification reaction and before pre-polymerization reaction, a hindered amine light stabilizer and a hindered phenol anti-oxidant are added; in the polymerization reaction procedure, after the pre-polymerization and before final polymerization, an ultraviolet absorbent is added; and before the spinning procedure, polyester obtained by the polymerization reaction procedure is sliced for pre-crystallization and drying. Fabrics prepared from the polyester fibers have good ultraviolet resisting effects, and can be dyed into various colors by cationic dyes of the polyester fiber at the same time,so the polyester fiber meets the requirements of conventional high-end spring and summer clothing on uniformity between functions and colors, has vast market prospect and is an important supplement to the conventional cationic-dyeable polyester fiber market in China.

Description

technical field [0001] The invention relates to a preparation method of polyester fiber, in particular to a preparation method of polyester fiber with anti-ultraviolet and 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 of cationic dyeable polyester,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/695C08G63/672
Inventor 边树昌
Owner JIANGSU GANGHONG FIBER CO LTD
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