Coloring agent and dyeing process for double-faced leather

A wool leather and process technology, applied in the field of wool dyeing agent and dyeing agent, wool leather dyeing process, can solve the problems of long dyeing process, large change of hair color, difficult to control, etc., and meet the requirements of rubbing color fastness , The hair color changes greatly, and the effect of improving the quality

Active Publication Date: 2018-06-08
隆丰革乐美时尚有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem with this process is that the dyeing process takes a long time, the efficiency is low, the water consumption is large, and the color of the hair after dyeing the board changes greatly, which is difficult to control

Method used

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  • Coloring agent and dyeing process for double-faced leather
  • Coloring agent and dyeing process for double-faced leather
  • Coloring agent and dyeing process for double-faced leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] 1) Put the skin into the inclined drum, the liquid ratio is 1:15, the temperature is 38°C, add 0.5g / L MPC, rotate for 30 minutes, add 0.5g / L GC, 1g / L IPF, 0.5g / L UPH and 1g / L SL and rotate for 60 minutes, add 1g / L formic acid, rotate for 20 minutes, add chromium powder 5g / L, rotate for 90 minutes, then add sodium formate 2g / L, rotate for 30 minutes, drain.

[0127] 2) Add water at 25°C to the inclined drum, the liquid ratio is 1:15, add 0.5g / L formic acid, wash for 10 minutes, and drain.

[0128] 3) Add water at 25°C to the inclined drum with a liquid ratio of 1:15, wash for 10 minutes, and drain.

[0129] 4) Add 65°C water to the inclined drum, the liquid ratio is 1:15, add 2g / L FL-1, 3g / L nitric acid, 1.5g / L ammonia water and rotate for 60 minutes, adjust the pH=6.5, add 1g / L TN rotates for 20 minutes, add hair dye and dyeing board dye at the same time, and add glycerin 0.5g / L, 30 minutes, add glacial acetic acid 0.5g / L, rotate for 20 minutes, add fatliquor 0.5g / L L...

Embodiment 2

[0136] 1) Put the skin into the inclined drum, the liquid ratio is 1:15, the temperature is 38°C, add 0.5g / L MPC, rotate for 30 minutes, add 0.5g / L GC, 0.5g / L UPH and 1g / L The SL rotates for 60 minutes, adds 1g / L formic acid, rotates for 20 minutes, adds chromium powder 5g / L, rotates for 90 minutes, then adds sodium formate 2g / L, rotates for 30 minutes, and drains water.

[0137] 2) Add water at 25°C to the inclined drum, the liquid ratio is 1:15, add 0.5g / L formic acid, wash for 10 minutes, and drain.

[0138] 3) Add water at 25°C to the inclined drum with a liquid ratio of 1:15, wash for 10 minutes, and drain.

[0139] 4) Add 65°C water to the inclined drum, the liquid ratio is 1:15, add 1.8g / L FL-1, 3g / L nitric acid, 2g / L ammonia water and rotate for 60 minutes, adjust the pH=6.2, add 1g / L TN rotates for 20 minutes, add hair dye and dyeing board dye at the same time, and add glycerin 1g / L for 30 minutes, add glacial acetic acid 0.5g / L, rotate for 20 minutes, add fatliquor ...

Embodiment 3

[0146] 1) Put the skin into the inclined drum, the liquid ratio is 1:15, the temperature is 38°C, add 0.5g / L MPC, rotate for 30 minutes, add 0.5g / L GC, 1g / L IPF, 0.5g / L UPH and 1g / L SL and rotate for 60 minutes, add 1g / L formic acid, rotate for 20 minutes, add chromium powder 5g / L, rotate for 90 minutes, then add sodium formate 2g / L, rotate for 30 minutes, drain.

[0147] 2) Add water at 25°C to the inclined drum, the liquid ratio is 1:15, add 0.5g / L formic acid, wash for 10 minutes, and drain.

[0148] 3) Add water at 25°C to the inclined drum with a liquid ratio of 1:15, wash for 10 minutes, and drain.

[0149]4) Add water at 65°C to the inclined drum, the liquid ratio is 1:15, add 1.8g / L FL-1, 3g / L nitric acid, 1.5g / L ammonia water and rotate for 60 minutes, adjust the pH=6.5, Add 1g / L TN and rotate for 20 minutes, add hair dye and board dye at the same time, add glycerin 0.5g / L, 30 minutes, add glacial acetic acid 0.5g / L, rotate for 20 minutes, add fatliquor 0.5g / L TIS,...

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PUM

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Abstract

The invention provides a coloring agent for double-faced leather. A hair dyeing agent is prepared from the following components in parts by weight: 180 to 200 parts of a dye leveler, 150 to 200 partsof a fatting agent, 0.01 to 10 parts of hair dye, 50 to 100 parts of glycerin and 85000 to 115000 parts of water. The invention also provides a panel dyeing agent and a dyeing process for the double-faced leather. The coloring agent comprises the hair dyeing agent and the panel dyeing agent; the components and the proportions of the hair dyeing agent and the panel dyeing agent are adjusted, particularly the glycerin is added in the hair dyeing agent, and the temperature and a pH value of the dyeing process are controlled, therefore, the aims of synchronously adding a hair dye and a panel dye and dyeing in the same bath are achieved and the dyeing time is greatly shortened; in addition, the dyed hair panel has good color control degree and the quality of a finished product is improved.

Description

technical field [0001] The invention belongs to the technical field of leather treatment and processing, and relates to a dyeing agent for fur leather and a dyeing process for fur leather, in particular to a hair dye, a dyeing agent for fur leather dyeing, and a dyeing process for fur leather. Background technique [0002] Leather processing has a history of thousands of years. After a long period of development, tanning has developed from a simple manual operation to an important industrial technology field. Since the early 1980s, my country's leather industry has developed by leaps and bounds, and it has become one of the most important leather and leather product production centers in the world. my country's cowhide, pigskin, sheepskin and other resources rank first in the world, and its annual output of light leather ranks first in the world, accounting for more than 20% of the world's total. Moreover, the leather industry is constantly becoming a characteristic industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/39D06P1/651D06P3/30D06P3/32
CPCD06P1/39D06P1/65118D06P3/3008D06P3/3206
Inventor 黄招赵广付贾兰英马培霞高慧涛
Owner 隆丰革乐美时尚有限公司
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