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Formaldehyde-free color stripping agent and preparation method thereof

The technology of an aldehyde color-removing agent and a penetrant is applied in the field of aldehyde-free color-removing agent and its preparation, which can solve the problems of generating formaldehyde, endangering the health of operators, endangering the health of users, etc., and achieving the effect of a simple synthesis process

Active Publication Date: 2015-12-09
BEIJING FANBO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although its whitening effect is better, harmful substances such as formaldehyde will be produced during its use.
At the same time, formaldehyde will be released during the color pulling operation, which will endanger the health of the operator, and a large amount of formaldehyde will remain on the fur after whitening, which will endanger the health of the user

Method used

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  • Formaldehyde-free color stripping agent and preparation method thereof
  • Formaldehyde-free color stripping agent and preparation method thereof
  • Formaldehyde-free color stripping agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Aldehyde-free color stripping agent, in parts by weight, is made of the following components:

[0021] 10-50 parts of the first compound; 2-10 parts of penetrating agent; 10-30 parts of solid organic acid; the molecular formula of the first compound is

[0022] Such as figure 1 The preparation method of shown aldehyde-free color stripping agent comprises the following concrete steps:

[0023] 101. Add 10-30 parts of solid organic acid to 10-50 parts of the first compound, and mix well; the molecular formula of the first compound is

[0024] 102. Heat to 20-30°C, add 2-10 parts of penetrant and stir for 10-20 minutes.

[0025] The first compound of the reducing agent used in the present invention is to replace some inorganic groups on the molecular chain in the existing sodium dithionite with organic groups R 1 , R 2 , R 3 Those skilled in the art can directly obtain the replacement method through the relevant knowledge they have mastered. After the replacement,...

Embodiment 2

[0027] Embodiment 2: as figure 2 The preparation method of shown aldehyde-free color stripping agent comprises the following concrete steps:

[0028] 201. Add 50 parts of the first compound and 5 parts of citric acid into the container in sequence, and mix well, wherein the R in the molecular formula of the first compound 1 Base and R 2 bases are methyl, R 3 The group is a sodium carboxylate group;

[0029] 202. Keep the temperature at 25°C, add 5 parts of JFC, stir while adding, and stir for 10 minutes to obtain the target product.

Embodiment 3

[0030] Embodiment 3: as image 3 The preparation method of shown aldehyde-free color stripping agent comprises the following specific steps:

[0031] 301. Add 30 parts of the first compound and 6 parts of ascorbic acid into the container in sequence, and mix well, wherein R in the molecular formula of the first compound 1 The group is hydroxyl, R 2 The base is methyl, R 3 The group is a sodium carboxylate group;

[0032] 302. Keep the temperature at 25°C, add 10 parts of glycerin, add while stirring, and stir for 15 minutes to obtain the target product.

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Abstract

The invention relates to the leather processing field, and in particular relates to a formaldehyde-free discharging agent and a preparation method thereof. The formaldehyde-free discharging agent is composed of the following components in parts by weight: 10-50 parts of first compound, 2-10 parts of penetrant and 10-30 parts of solid organic acid; the preparation method of the formaldehyde-free discharging agent comprises the following steps: adding 10-30 parts of solid organic acid to 10-50 parts of first compound and mixing evenly; heating to 20-30 DEG C, adding 2-10 parts of penetrate and for stirring for 10-20 minutes. The formaldehyde-free discharging agent provided by the invention does not cause any harmful substance formaldehyde to be generated or left while performing discharging on fur. Simultaneously, the preparation method of the formaldehyde-free discharging agent provided by the invention is simple in synthesis process and environment-friendly.

Description

technical field [0001] The invention relates to the field of leather processing, in particular to an aldehyde-free color-pulling agent and a preparation method thereof. Background technique [0002] At present, the color-pulling agent used for making frost on fur grass in the market is mainly white block. [0003] Although its whitening effect is better, harmful substances such as formaldehyde will be produced during its use. Simultaneously, formaldehyde will be released during the color pulling operation, which will endanger the health of the operator, and a large amount of formaldehyde will remain on the fur after the whitening, which will endanger the health of the user. Contents of the invention [0004] The object of the present invention is to provide an aldehyde-free color-discharging agent and a preparation method thereof, so as to solve the above-mentioned problems. [0005] The formaldehyde-free color-releasing agent provided in the embodiments of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/15D06P5/04D06P3/32
Inventor 郝安生郑超斌郑红超宋跃岭
Owner BEIJING FANBO CHEM
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