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Method for removing chromium soap pollution from fur quilt

A technology for removing hair and chrome soap, applied in the field of bleaching and dyeing

Inactive Publication Date: 2014-01-29
BEIJING FANBO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no method to effectively remove chrome soap stains from the coat

Method used

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  • Method for removing chromium soap pollution from fur quilt
  • Method for removing chromium soap pollution from fur quilt
  • Method for removing chromium soap pollution from fur quilt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] See figure 1 , The method for removing hair contaminated by chromium soap provided in the first embodiment includes:

[0046] Step 101: Treat the fur in an acidic solution composed of water, oxalic acid and fatty alcohol polyoxyethylene ether; wherein the contents of fatty alcohol polyoxyethylene ether and oxalic acid per 1000 g of water are 1 g and 1 g, respectively;

[0047] Step 102: Wash the treated fur with water;

[0048] Step 103: Treat the wool in an alkaline solution composed of water, sodium carbonate and fatty alcohol polyoxyethylene ether; wherein the contents of fatty alcohol polyoxyethylene ether and sodium carbonate per 1000 g of water are 1 g and 1 g, respectively .

[0049] Among them, when removing the hair from being contaminated by chromium soap, the mass ratio of the coat to the water in the acid solution is 1:25; the mass ratio of the coat to the water in the alkaline solution is also 1:25.

Embodiment 2

[0051] See figure 2 , The method for removing hair contaminated by chromium soap provided in the second embodiment includes:

[0052] Step 201: At a temperature of 20°C, the hair is treated in an acidic solution composed of water, oxalic acid and fatty alcohol polyoxyethylene ether for 40 minutes, wherein per 1000 g of water the fatty alcohol polyoxyethylene ether and oxalic acid The content is 2g and 1.5g respectively;

[0053] Step 202: Wash the treated fur with water;

[0054] Step 203: At a temperature of 40°C, the hair is treated in an alkaline solution composed of water, sodium carbonate and fatty alcohol polyoxyethylene ether for 30 minutes, where the fatty alcohol polyoxyethylene ether is combined with The content of sodium carbonate is 2g and 3g respectively.

[0055] Among them, when removing the hair from being contaminated by chromium soap, the mass ratio of the coat to the water in the acid solution is 1:15; the mass ratio of the coat to the water in the alkaline soluti...

Embodiment 3

[0057] See image 3 , The method for removing hair contaminated by chromium soap provided in the third embodiment includes:

[0058] Step 301: At a temperature of 35°C, treat the fur in an acidic solution composed of water, oxalic acid and fatty alcohol polyoxyethylene ether for 60 minutes, where the mixture of fatty alcohol polyoxyethylene ether and oxalic acid in 1000 g of water The content is 2g and 1.5g respectively;

[0059] Step 302: Wash the treated fur with water;

[0060] Step 303: At a temperature of 45°C, the wool is treated in an alkaline solution composed of water, sodium carbonate and fatty alcohol polyoxyethylene ether for 50 minutes, wherein the fatty alcohol polyoxyethylene ether is combined with The content of sodium carbonate is 2g and 3g respectively.

[0061] Among them, when removing the hair from being contaminated by chromium soap, the mass ratio of the coat to the water in the acid solution is 1:20; the mass ratio of the coat to the water in the alkaline solu...

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Abstract

The present invention relates to bleaching and dyeing field, especially to a method for removing chromium soap pollution from a fur quilt. The method includes the following steps that: the fur quilt is treated in an acid solution composed of water, oxalic acid and fatty alcohol polyoxyethylene ether, wherein, the contents of the fatty alcohol polyoxyethylene ether and the oxalic acid in each 1000g of the water respectively are 1g to 2g and 1g to 1.5 g; the treated fur quilt is washed by water; and the fur quilt is treated in an alkaline solution composed of the water, sodium carbonate and the fatty alcohol polyoxyethylene ether, wherein, the contents of the fatty alcohol polyoxyethylene ether and the sodium carbonate in each 1000g of the water respectively are 1g to 2 g and 1g to 3g, in the process of removing the chromium soap pollution from the fur quilt, the mass ratio of the fur quilt to the water in the acid solution being in the range from 1:15-1:25; the mass ratio of the fur quilt to the water in the alkaline solution being in the range from 1:15-1:25. This method can assist in effectively removing the chromium soap pollution from the fur quilt.

Description

Technical field [0001] The invention relates to the field of bleaching and dyeing, and in particular to a method for removing hair contaminated by chromium soap. Background technique [0002] Chromium salt is the main substance for tanning leather and fur. However, in the process of tanning fur with chromium salt, if the operation is improper, for example, the pH (pH) during tanning is too high, the temperature of tanning is too high, or the pretreatment of the fur is not thorough, the chromium salt will precipitate or be The binding force of the coat is strengthened to form chromium soap and adhere to the fur. Common chromium soaps include chromium hydroxide, chromium trioxide and other substances. [0003] Since chromium soap is insoluble in water, it is difficult to remove it with water. Due to the adhesion of chrome soap, after the fur is tanned, the hair will appear green and dull, which affects its use value and economic value. This is called chrome soap pollution. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C15/00
Inventor 张江山郑超斌郑红超郝安生
Owner BEIJING FANBO CHEM