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Sodium sulfite rongalite composite acidic reductive cleaning agent and preparation method and application thereof

A technology of sodium sulfite and white powder, applied in the field of dyeing and finishing, can solve the problems of high product cost, yellowing, poor cleaning effect, etc., achieve low cost, reduce water consumption, and avoid unstable pH value

Inactive Publication Date: 2018-04-24
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the cleaning effects of the above-mentioned reduction cleaning agents are slightly worse than those of sodium hydrosulfite and caustic soda, and some products have higher cost or have yellowing phenomenon

Method used

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  • Sodium sulfite rongalite composite acidic reductive cleaning agent and preparation method and application thereof
  • Sodium sulfite rongalite composite acidic reductive cleaning agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A sodium sulfite white powder composite acid reduction cleaning agent is composed of sodium sulfite 0.1g / L, white powder 0.3g / L, hydroxyethylidene diphosphonic acid 0.02g / L, AEO-9 0.02g / L and water.

[0028] The preparation method of the sodium sulfite diaobai powder composite acid reduction cleaning agent comprises mixing sodium sulfite, diaobai powder, hydroxyethylidene diphosphonic acid, AEO-9 and water.

[0029] The application of the sodium sulfite carving white powder composite acid reduction cleaning agent comprises the following steps:

[0030] 1) After the polyester fabric is dyed with disperse dyes, empty the dyeing residue in the polyester fabric;

[0031] 2) Add sodium sulfite carving white powder composite acid reduction cleaning agent and water to the polyester fabric after the dyeing residue is emptied in step 1), and then add acetic acid to adjust the pH value to 5;

[0032] 3) Keep warm at 80°C for 20 minutes, and finally wash and dry with water.

Embodiment 2

[0034] A sodium sulfite dibasic compound acid reduction cleaning agent, which is composed of sodium sulfite 1.2g / L, dibasic powder 0.3g / L, hydroxyethylidene diphosphonic acid 0.02g / L, AEO-9 0.02g / L and water.

[0035] The preparation method of the sodium sulfite diaobai powder composite acid reduction cleaning agent comprises mixing sodium sulfite, diaobai powder, hydroxyethylidene diphosphonic acid, AEO-9 and water.

[0036] The application of the sodium sulfite carving white powder composite acid reduction cleaning agent comprises the following steps:

[0037] 1) After the polyester fabric is dyed with disperse dyes, empty the dyeing residue in the polyester fabric;

[0038] 2) Add sodium sulfite carving white powder composite acid reduction cleaning agent and water to the polyester fabric after the dyeing residue is emptied in step 1), and then add acetic acid to adjust the pH value to 5;

[0039] 3) Keep warm at 80°C for 20 minutes, and finally wash and dry with water.

Embodiment 3

[0041] A sodium sulfite dibasic compound acid reduction cleaning agent, which is composed of sodium sulfite 1.6g / L, dibasic powder 0.1g / L, hydroxyethylidene diphosphonic acid 0.02g / L, AEO-9 0.02g / L and water.

[0042] The preparation method of the sodium sulfite diaobai powder composite acid reduction cleaning agent comprises mixing sodium sulfite, diaobai powder, hydroxyethylidene diphosphonic acid, AEO-9 and water.

[0043] The application of the sodium sulfite carving white powder composite acid reduction cleaning agent comprises the following steps:

[0044] 1) After the polyester fabric is dyed with disperse dyes, empty the dyeing residue in the polyester fabric;

[0045] 2) Add sodium sulfite carving white powder composite acid reduction cleaning agent and water to the polyester fabric after the dyeing residue is emptied in step 1), and then add acetic acid to adjust the pH value to 5;

[0046] 3) Keep warm at 80°C for 20 minutes, and finally wash and dry with water.

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Abstract

The invention discloses a sodium sulfite rongalite composite acidic reductive cleaning agent and relates to the technical field of dyeing and finishing. The cleaning agent is composed of sodium sulfite 0.1-1.6 g / L, rongalite 0.1-0.5 g / L, etidronic acid 0.02-0.2 g / L, AEO-9 0.02-0.2 g / L and water. The invention further discloses a preparation method and application of the cleaning agent. The cleaning agent is good in cleaning effect and low in cost.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a sodium sulfite dibasic compound acid reduction cleaning agent, its preparation method and its application. Background technique [0002] After the polyester fabric is dyed with disperse dyes, it needs to be reduced and cleaned with sodium hydrosulfite and caustic soda. L, caustic soda 2g / L, at 80°C for 20min; 3) Drainage; 4) Hot water washing; 5) Drainage; 6) Water washing; 7) Drainage; 8) Pickling; 9) Drainage; 10) drying. But this reduction cleaning method has the following disadvantages: (1) sodium hydrosulfite has certain dangers in the storage process, and it is easy to explode if stored improperly; (2) hydrosulfite will react violently with water during use, releasing a large amount of heat, causing unnecessary decomposition, and releasing sulfur dioxide gas to pollute the environment, resulting in an increase in the BOD value of sewage; (3) The residual li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/10D06P5/08D06P5/04D06P3/54
Inventor 黄钢梁迎春王俊华
Owner WUYI UNIV
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