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

A technology of carving white powder and sodium sulfide, 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 sulfide and rongalite composite acidic reductive cleaning agent and preparation method and application thereof
  • Sodium sulfide and rongalite composite acidic reductive cleaning agent and preparation method and application thereof
  • Sodium sulfide and rongalite composite acidic reductive cleaning agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A sodium sulfide white powder composite acid reduction cleaning agent is composed of sodium sulfide 0.5g / L, white powder 0.2g / L, AEO-90.1g / L and water.

[0028] The preparation method of the sodium sulfide carved white powder composite acid reduction cleaning agent is to mix sodium sulfide, carved white powder, AEO-9 and water.

[0029] The application of this sodium sulfide carved 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 sulfide 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 sulfide white powder composite acid reduction cleaning agent is composed of sodium sulfide 0.1g / L, white powder 0.5g / L, AEO-90.1g / L and water.

[0035] The preparation method of the sodium sulfide carved white powder composite acid reduction cleaning agent is to mix sodium sulfide, carved white powder, AEO-9 and water.

[0036] The application of this sodium sulfide carved 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 sulfide 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 sulfide white powder composite acid reduction cleaning agent is composed of sodium sulfide 0.2g / L, white powder 0.3g / L, AEO-90.6g / L and water.

[0042] The preparation method of the sodium sulfide carved white powder composite acid reduction cleaning agent is to mix sodium sulfide, carved white powder, AEO-9 and water.

[0043] The application of this sodium sulfide carved 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 sulfide 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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PUM

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Abstract

The invention relates to the technical field of dyeing and finishing and discloses a sodium sulfide and rongalite composite acidic reductive cleaning agent and a preparation method and application thereof. The sodium sulfide and rongalite composite acidic reductive cleaning agent is composed of sodium sulfide 0.1-0.6g / L, rongalite 0.1-0.6g / L, AEO-9 0.1-0.6g / L and water. The sodium sulfide and rongalite composite acidic reductive cleaning agent has advantages of great cleaning effects and low cost.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a sodium sulfide 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. The traditional caustic soda and sodium hydrosulfite reduction cleaning process is as follows: 1) cooling down the dye solution and draining the liquid; 2) alkaline reduction cleaning, using 2g / 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, releasin...

Claims

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Application Information

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IPC IPC(8): D06P5/10D06P5/08D06P3/54
Inventor 黄钢梁迎春王俊华
Owner WUYI UNIV
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