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Assistant for resist-discharge printing of silk-like terylen fabric and preparation method thereof

A pulling agent and simulation technology, applied in dyeing, textiles and papermaking, etc., can solve the problems that disperse dyes are difficult to dye polyester, and alternative products cannot achieve the dyeing effect, etc.

Inactive Publication Date: 2012-07-04
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a polyester imitation silk anti-discharge printing agent, which solves the problems in the prior art that disperse dyes are difficult to dye polyester due to the lack of corresponding extraction aids, and the replacement products cannot achieve the dyeing effect.

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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  • Assistant for resist-discharge printing of silk-like terylen fabric and preparation method thereof
  • Assistant for resist-discharge printing of silk-like terylen fabric and preparation method thereof
  • Assistant for resist-discharge printing of silk-like terylen fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 Pulling aid for polyester imitation silk anti-discharge printing and its preparation

[0034]

[0035] First, add 50kg of PEG-200, 2kg of ethylene glycol and 30kg of terephthalic acid into a 1M3 enamel reaction kettle, heat and melt, start stirring, heat up to 100°C and start vacuuming, dehydration for three hours. After no small molecules are precipitated, cool down to 60-80°C, add 0.1 kg of methyl benzoate end-capping agent, stir at high speed for fifteen minutes, and then add 0.001 kg of catalyst. Gradually heat up the temperature program to the specified temperature, the reaction viscosity will continue to increase, and the acidity of the system will be detected in due course. After the reaction time is about 3-8 hours, the acidity of the system is roughly equivalent to the expected value. At this time, the temperature rise is stopped, and the vacuum is vacuumed under constant stirring until the temperature drops below 60°C, and a viscous paste product ...

Embodiment 2

[0036] Example 2 Pulling aid for polyester imitation silk anti-discharge printing and its preparation

[0037]

[0038] First, add 55kg of PEG-400, 3kg of ethylene glycol and 25kg of dimethyl terephthalate into a 1M3 enamel reaction kettle, start stirring after heating and melting, and start vacuuming after heating up to 100°C, dehydration treatment three Hour. Cool down to 60-80°C after no small molecules are precipitated, add 0.06kg of ethyl benzoate capping agent, stir at high speed for fifteen minutes, then add 0.002kg of catalyst. Gradually program the temperature to the specified temperature, the reaction viscosity will continue to increase, and the acidity of the system will be detected in due course. After the reaction time is about 3-8 hours, the acidity of the system is roughly equivalent to the expected value. At this time, the temperature rise is stopped, and the vacuum is vacuumed under constant stirring until the temperature drops below 60°C, and a viscous pa...

Embodiment 3

[0039] Example 3 Pulling aid for polyester imitation silk anti-discharge printing and its preparation

[0040]

[0041] First, add 65kg of PEG-1000, 5kg of ethylene glycol and 35kg of dibutyl terephthalate into a 1M3 enamel reaction kettle, heat and melt, start stirring, heat up to 100°C and start vacuuming, dehydration treatment three Hour. After no small molecules are precipitated, cool down to 60-80°C, add 0.05 kg of butyl benzoate end-capping agent, stir at high speed for fifteen minutes, and then add 0.005 kg of catalyst. Gradually program the temperature to the specified temperature, the reaction viscosity will continue to increase, and the acidity of the system will be detected in due course. After the reaction time is about 3-8 hours, the acidity of the system is roughly equivalent to the expected value. At this time, the temperature rise is stopped, and the vacuum is vacuumed under constant stirring until the temperature drops below 60°C, and a viscous paste produ...

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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Abstract

The invention discloses an assistant for resist-discharge printing of a silk-like terylen fabric and a preparation method thereof. The assistant is characterized by being prepared from the following components in parts by weight: 10-50 parts of terephthalic acid or dialkyl terephthalate, 2-10 parts of glycol, 50-90 parts of polyethylene glycol, a small amount of alkyl benzoate blocking agent and 0.001-0.02 part of polymerization catalyst. The invention solves the problems that disperse dyes are difficult to use for terylen dyeing due to the lack of a corresponding assistant in the prior discharge-assisting art and substitute products can not achieve the dyeing effect.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing of polyester imitation silk, and in particular relates to a pull-out aid for polyester imitation silk anti-discharge printing and a preparation method thereof. Background technique [0002] Polyester fiber is dyed with disperse dyes, and its fastness is very ideal, so it increases the difficulty of discharge printing of polyester fiber. Generally, printing and dyeing factories first print the fake ground, and then use the white paste for discharge printing. However, this process has many shortcomings, especially the difficulty in obtaining uniform coating. With the increasing popularity of thin, silk-like polyester products, polyester deep discharge-resistant printing has also developed. As early as the end of the 1970s and the beginning of the 1980s, Japan's Sanyo Chemical Industry Co., Ltd. and Hayashi Chemical Industry Co., Ltd. took the lead in conducting in-depth research on this...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/15D06P5/08D06P3/54D06P1/52C08G63/672
Inventor 陈奠宇钦斌华王苗苗
Owner CHANGSHU INSTITUTE OF TECHNOLOGY