Reductive cleaning agent for synthetic fibers as well as preparation method and application of reductive cleaning agent

A synthetic fiber and cleaning agent technology, applied in dyeing, textiles and papermaking, etc., can solve problems such as the decline of active ingredients, high transportation risks and transportation costs, and damage to workers' health, and achieve long-lasting efficacy, low transportation costs and risks, Full effect of cleaning

Active Publication Date: 2016-06-29
DUPLUS CHEM OF ZHANGJIAGANG CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Hydrosulfite will spontaneously ignite, especially after absorbing moisture, it will automatically heat up and burn, and fires frequently occur in warehouses storing hydrosulfite
[0006] (2) Hydrosulfur powder is easy to release sulfur dioxide gas when it is in use, which will cause environmental pollution in the workshop and damage the health of workers. At the same time, the harsh working environment will increase the labor cost of the enterprise
[00

Method used

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  • Reductive cleaning agent for synthetic fibers as well as preparation method and application of reductive cleaning agent
  • Reductive cleaning agent for synthetic fibers as well as preparation method and application of reductive cleaning agent
  • Reductive cleaning agent for synthetic fibers as well as preparation method and application of reductive cleaning agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] At about 30°C, add lysine: 293.38g, glyoxal: 58.04g, ethylene glycol: 700g into the reactor and react for 30min, then add sodium borohydride: 37.83g, and continue the reaction for 30min. Then add dimethyl terephthalate: 194g, dimethyl isophthalate-5-sodium sulfonate: 45g, polyethylene glycol with a molecular weight of 1000: 400g, p-toluenesulfonic acid: 1g, magnesium acetate : 2g, heat up to 150°C for 250 minutes, continue to heat up to 220°C for 90 minutes, then keep the temperature at 280°C for 120min at a vacuum degree of -0.08MP, polymerize into a block copolymer with a number average molecular weight of 18,000, and cool down After reaching 120°C, the material is discharged to obtain the product.

Embodiment 2

[0038] At about 30°C, add lysine: 350g, glyoxal: 45g, ethylene glycol: 750g into the reactor and react for 50 minutes, then add sodium borohydride: 45g, and continue the reaction for 50 minutes. Then add dimethyl terephthalate: 220g, dimethyl isophthalate-5-sodium sulfonate: 55g, polyethylene glycol with a molecular weight of 400: 350g, p-toluenesulfonic acid: 1g, zinc acetate : 2g, heat up to 185°C for 180 minutes, continue to heat up to 220°C for 90 minutes, then keep the temperature at 230°C for 120min at a vacuum degree of -0.1MP, polymerize into a block copolymer with a number average molecular weight of 15,000, and cool down After reaching 100°C, the material is discharged to obtain the product.

Embodiment 3

[0040] At about 30°C, add lysine: 250g, glyoxal: 60g, ethylene glycol: 650g into the reactor and react for 1 hour, then add sodium borohydride: 30g, and continue the reaction for 1 hour. Then add dimethyl isophthalate: 180g, dimethyl isophthalate-5-sodium sulfonate: 50g, polyethylene glycol with a molecular weight of 4000: 450g, p-toluenesulfonic acid: 1g, calcium acetate : 2g, heat up to 170°C for 100 minutes, continue to heat up to 225°C for 80 minutes, then keep the temperature at 250°C for 120min at a vacuum degree of -0.09MP, polymerize into a block copolymer with a number average molecular weight of 17,000, and cool down After reaching 100°C, the material is discharged to obtain the product.

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PUM

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Abstract

The invention relates to a reductive cleaning agent for synthetic fibers as well as a preparation method and an application of the reductive cleaning agent. The reductive cleaning agent is prepared from raw materials in parts by weight as follows: 250-350 parts of a substance A shown in the specification, 30-80 parts of a substance B shown in the specification, 600-800 parts of a substance C shown in the specification, 20-40 parts of sodium borohydride, 150-250 parts of dimethyl terephthalate/dimethyl isophthalate, 300-500 parts of polyethylene glycol, 35-65 parts of sodium dimethyl isophthalate-5-sulfonate, 0.5-1.5 parts of p-methylbenzene sulfonic acid and 1-3 parts of acetic metal salt. The reductive cleaning agent has a good cleaning effect, a durable effect and a sufficient cleaning effect when used, cannot lose efficacy at high temperature, is stable after meeting with water or absorbing moisture, cannot decompose or release combustible gas or corrosive gas, does not contain carcinogenic aromatic amine or environmental hormone, cannot be influenced by poor storage environment and transportation environment, requires lower transportation cost, has few transportation risks and is a real environment-friendly and efficient printing and dyeing auxiliary.

Description

technical field [0001] The invention relates to a reducing cleaning agent for synthetic fibers, its preparation method and application. Background technique [0002] After polyester and its blended fabrics are dyed with disperse dyes, in order to improve the dyeing fastness, reduction cleaning is usually required. At present, the more common reducing cleaning agents are caustic soda and sodium hydrosulfite. The principle is to use the reducing property of sodium hydrosulfite to destroy the color development system of disperse dyes, so as to achieve the purpose of removing floating color and improving color fastness. [0003] Initially, using alkaline hydrosulfate to restore and clean polyester had great advantages, but under the background of increasingly severe environmental protection situation, stricter safety production management and declining profits of printing and dyeing enterprises, the disadvantages of hydrosulfite also quickly appeared. [0004] The main disadvan...

Claims

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Application Information

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IPC IPC(8): D06P5/06D06P5/04D06P5/10D06P5/08
CPCD06P5/04D06P5/06D06P5/08D06P5/10
Inventor 陈金辉吴玉春方玉琦邱海龙
Owner DUPLUS CHEM OF ZHANGJIAGANG CITY
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