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A kind of black dyeing process of fur

A fur and craft technology, applied in the field of leather processing, can solve the problems of low blackness, large amount of dye, low dye absorption rate, etc.

Active Publication Date: 2019-08-02
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 problems in this process are that the amount of dye is large, the dye absorption rate is low, which leads to low blackness, and a large amount of dye remains in the dyeing wastewater; and the finished product has poor dry and wet rubbing fastness, etc.

Method used

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  • A kind of black dyeing process of fur
  • A kind of black dyeing process of fur
  • A kind of black dyeing process of fur

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Put the hide into the inclined drum, liquid ratio 1:12, temperature 40°C, add 0.5g / L fatliquor CUTAPOL TIS, rotate for 60 minutes, add black dye SELLA FAST BLACK NT 2.5g / L, rotate for 60 minutes, add Formic acid 0.7g / L, rotate for 30 minutes, add fatliquor TRIANOL LC12, 1g / L, rotate for 60 minutes, then add formic acid 0.5g / L every 20 minutes, adjust the pH to 3.0-3.1. drain.

[0105] Add water at 25°C to the inclined drum with a liquid ratio of 1:12, wash for 10 minutes, and drain.

[0106]Add water at 40°C to the inclined drum, liquid ratio 1:12, add black dye SELLA FAST BLACK NT 2g / L, rotate for 60 minutes, add formic acid 0.5g / L, rotate for 30 minutes, add aluminum tanning agent PELLUTAX ALF 2g / L, rotate for 30 minutes, add chrome powder CHROMITAN B 2g / L, rotate for 30 minutes, add sodium bicarbonate 2g / L, rotate for 90 minutes, adjust the pH to 3.2-3.4, and drain.

[0107] Add water at 25°C to the inclined drum, the liquid ratio is 1:12, add 0.5g / L formic acid, ...

Embodiment 2

[0118] Put the hide into the inclined drum, liquid ratio 1:12, temperature 40°C, add 0.8g / L fatliquor CUTAPOL TIS, rotate for 60 minutes, add black dye SELLA FAST BLACK NT 2.6g / L, rotate for 60 minutes, add Formic acid 0.6g / L, rotate for 30 minutes, add fatliquor TRIANOL LC12, 1.1g / L, rotate for 60 minutes, then add formic acid 0.5g / L every 20 minutes, adjust the pH to 3.1~3.2. drain.

[0119] Add water at 25°C to the inclined drum with a liquid ratio of 1:12, wash for 10 minutes, and drain.

[0120] Add water at 40°C to the inclined drum, liquid ratio 1:12, add black dye SELLA FAST BLACK NT 2.1g / L, rotate for 60 minutes, add formic acid 0.5g / L, rotate for 30 minutes, add aluminum tanning agent PELLUTAX ALF 2.2g / L, rotate for 30 minutes, add chrome powder CHROMITAN B 2g / L, rotate for 30 minutes, add sodium bicarbonate 2g / L, rotate for 90 minutes, adjust the pH to 3.2-3.4, and drain.

[0121] Add water at 25°C to the inclined drum, the liquid ratio is 1:12, add 0.5g / L formic ...

Embodiment 3

[0132] Put the skin into the inclined drum, the liquid ratio is 1:12, the temperature is 42°C, add 0.5g / L fatliquor CUTAPOL TIS, rotate for 60 minutes, add black dye SELLA FAST BLACK NT 2.5g / L, rotate for 60 minutes, add Formic acid 0.8g / L, rotate for 30 minutes, add fatliquor TRIANOL LC12, 1.5g / L, rotate for 60 minutes, then add formic acid 0.5g / L every 20 minutes, adjust the pH to 3.0-3.1. drain.

[0133] Add water at 28°C to the inclined drum with a liquid ratio of 1:12, wash for 10 minutes, and drain.

[0134] Add water at 42°C to the inclined drum, liquid ratio 1:12, add black dye SELLA FAST BLACK NT 2g / L, rotate for 60 minutes, add formic acid 0.6g / L, rotate for 30 minutes, add aluminum tanning agent PELLUTAX ALF 2g / L, rotate for 30 minutes, add chrome powder CHROMITAN B 2g / L, rotate for 30 minutes, add sodium bicarbonate 2g / L, rotate for 90 minutes, adjust the pH to 3.2-3.4, and drain.

[0135] Add water at 25°C to the inclined drum, the liquid ratio is 1:12, add 0.5...

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Abstract

The invention provides a fur blackening process comprising the following steps of firstly, carrying out high-temperature plate dyeing on fur leather and a plate dye to obtain a semi-finished product; then, retanning and carrying out color fixation on the semi-finished product obtained in the former step and the plate dye to obtain color-fixed fur leather; and finally, carrying out high-temperature hair and plate co-dyeing on the color-fixed fur leather obtained in the former step, the plate dye and a hair dye, and cleaning to obtain a dyed fur. According to the fur blackening process, all key point technologies are creatively optimized and organically combined, the process flows of high-temperature plate dyeing, retanning and color fixation, high-temperature plate dyeing and hair dyeing as well as cleaning are adopted, the plate dyeing is carried out in twice, high-temperature plate dyeing is carried out firstly, and then, hair and plate co-dyeing is carried out at high temperature after color fixation, so that the absorption rate of a dye is increased, and the fur blackening process is uniform in coloring, full in color and high in color scale. The consumption of the dye is reduced, the color scale is increased, and the dry and wet rubbing fastness is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of leather treatment and processing, in particular to a fur blackening process. 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 of our country. play an increasingly important role. [0003] Leather treatment refers to the process of turning perishable raw hide, that is, ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C3/02C14C3/06C14C9/02C14C15/00D06P1/00D06P3/32D06P5/02
CPCC14C3/02C14C3/06C14C9/02C14C15/00D06P1/00D06P3/32D06P5/02
Inventor 仲济德杨金
Owner 隆丰革乐美时尚有限公司
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