Preparation method for uvioresistant and cationic dyeable polyester chip

A polyester chip, anti-ultraviolet technology, applied in the direction of one-component polyester rayon, etc., to achieve good spinnability, improved anti-aging performance, reasonable and effective anti-violet mechanism.

Active Publication Date: 2013-12-04
JIANGSU ZHONGLU TECH DEV +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 uvioresistant and cationic dyeable polyester chip
  • Preparation method for uvioresistant and cationic dyeable polyester chip

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0026] (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.

[0027] (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

[0030] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0031] (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.

[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, 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

[0035] This embodiment provides a method for preparing an anti-ultraviolet, cationic dyeable polyester chip, which comprises the following steps:

[0036] (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.

[0037] (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 uvioresistant and cationic dyeable polyester chip, which comprises an esterification reaction procedure, an ester exchange procedure and a polymerization procedure in sequence, wherein three monomers are added in the ester exchange procedure; hindered anime light stabilizer and hindered phenol antioxygen are added after the esterification and before prepolymerization; and ultraviolet absorbent is added after the prepolymerization and before the final polymerization of the polymerization procedure. Fabric prepared by the fiber spun by the polyester chip has good uvioresistant effect. Meanwhile, the fabric can be dyed into various beautiful colors through the cationic dye characteristic of the polyester chip. The unified requirements of top grade spring and summer clothes on function and color are satisfied. The cationic dyeable polyester chip has broad market prospect and is also an important supplementation for the domestic current cationic dyeable polyester fiber market.

Description

technical field [0001] The invention relates to a preparation method of polyester, in particular to a preparation method of ultraviolet-resistant and cationic dyeable polyester chips. 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, in view of the current re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/688C08G63/78C08K5/3475D01F6/92
Inventor 边树昌
Owner JIANGSU ZHONGLU TECH DEV
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