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Formic acid and rongalite composite acidic reductive cleaning agent, method for preparing same and application of formic acid and rongalite composite acidic reductive cleaning agent

A technology of carving white powder and cleaning agent, which is applied in the field of dyeing and finishing, can solve the problems of poor cleaning effect, high product cost, yellowing, etc., and achieve the effect of reducing water consumption, low cost, and low dosage

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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  • Formic acid and rongalite composite acidic reductive cleaning agent, method for preparing same and application of formic acid and rongalite composite acidic reductive cleaning agent
  • Formic acid and rongalite composite acidic reductive cleaning agent, method for preparing same and application of formic acid and rongalite composite acidic reductive cleaning agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention discloses a formic acid carving white powder compound acid reduction cleaning agent, which is composed of formic acid 0.5g / L, carving white powder 0.2g / L, hydroxyethylidene diphosphonic acid 0.2g / L and water.

[0028] The preparation method of the formic acid carving white powder composite acid reduction cleaning agent is to mix formic acid, carving white powder, hydroxyethylidene diphosphonic acid and water.

[0029] The application of the formic acid 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 formic acid 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 wa...

Embodiment 2

[0034] A formic acid diaobai powder composite acid reduction cleaning agent is composed of formic acid 0.5g / L, diaobai powder 0.3g / L, hydroxyethylidene diphosphonic acid 0.4g / L and water.

[0035] The preparation method of the formic acid carving white powder composite acid reduction cleaning agent is to mix formic acid, carving white powder, hydroxyethylidene diphosphonic acid and water.

[0036] The application of the formic acid 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 formic acid 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 formic acid diaobai powder composite acid reduction cleaning agent is composed of formic acid 0.3g / L, diaobai powder 0.6g / L, hydroxyethylidene diphosphonic acid 0.1g / L and water.

[0042] The preparation method of the formic acid carving white powder composite acid reduction cleaning agent is to mix formic acid, carving white powder, hydroxyethylidene diphosphonic acid and water.

[0043] The application of the formic acid 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 formic acid 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 formic acid and rongalite composite acidic reductive cleaning agent, and relates to the technical field of dyeing and finishing. The formic acid and rongalite composite acidic reductive cleaning agent comprises formic acid 0.3-0.6 g / L, rongalite 0.1-0.6 g / L, hydroxyethylidene-1,1-diphosphonic acid 0.1-0.4 g / L and water. The invention further discloses a method for preparing the formic acid and rongalite composite acidic reductive cleaning agent and application thereof. The formic acid and rongalite composite acidic reductive cleaning agent has good washing effect andis low in cost.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing, in particular to a formic acid carving white powder composite 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 us...

Claims

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Application Information

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IPC IPC(8): D06P5/10D06P5/04D06P3/54
CPCD06P3/54D06P5/04D06P5/10
Inventor 黄钢梁迎春王俊华
Owner WUYI UNIV
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