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Preparation method for anti-pilling, anti-ageing and normal-pressure cation dyeable polyester chips

A polyester chip, anti-aging technology, applied in the direction of single-component polyester artificial filament, etc., to achieve good anti-pilling performance

Inactive Publication Date: 2012-03-28
WUJIANG GANGYANG CHEM FIBER +1
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  • 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

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  • Preparation method for anti-pilling, anti-ageing and normal-pressure cation dyeable polyester chips
  • Preparation method for anti-pilling, anti-ageing and normal-pressure cation dyeable polyester chips

Examples

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Embodiment 1

[0030] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0031] (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.

[0032] (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

[0036] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0037] (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.

[0038] (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

[0042] This embodiment provides a method for preparing an anti-pilling, anti-aging, normal-pressure cationic dyeable polyester chip, which includes the following steps:

[0043] (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.

[0044] (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...

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Abstract

The invention relates to a preparation method for anti-pilling, anti-ageing and normal-pressure cation dyeable polyester chips. The preparation method comprises procedures of primary esterification, transesterification, secondary esterification and polymerization, wherein three monomers are added in the transesterification procedure; a hindered amine light stabilizer, a hindered phenol antioxidant and hydroxyl silicon oil are added after the secondary esterification and before prepolymerization; and the polyester slices are precrystallized and dried before the spinning procedure. A fabric prepared from fibers spun by the polyester chips has a high anti-pilling property and high light fastness; the polyester fibers can be dyed with various bright colors due to the normal-pressure cation dyeable property; the unified requirement of high-grade spring and summer clothing at present on functionality and color is met; and the polyester fibers and wool can be dyed in the same bath and a good clothing effect of the fibers blended with the wool is achieved. The polyester fibers spun by the polyester chips are important supplement for the cation dyeable polyester fiber market at present and have wide market prospect.

Description

technical field [0001] The invention relates to a preparation method of a polyester chip, in particular to a preparation method of an anti-pilling, anti-aging, normal pressure cationic dyeable polyester chip. 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 Applications(China)
IPC IPC(8): C08G63/695C08G63/672C08G63/78D01F6/92
Inventor 边树昌
Owner WUJIANG GANGYANG CHEM FIBER
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