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Method for dyeing Tan sheep skin

A Tan sheepskin, secondary dyeing technology, applied in the field of Tan sheepskin dyeing, can solve the problems of color fading, uneven dyeing, etc., and achieve the effects of improving efficiency, uniform dyeing, and shortening processing time

Inactive Publication Date: 2013-08-14
宁夏成丰农业科技开发股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing Tan sheepskin dyeing is generally done in a drum. Due to the structure of the Tan sheepskin and the particularity of its fur, it is prone to uneven dyeing and serious color fading.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] a) softening the tanned sheepskin after tanning and drying at normal temperature;

[0015] b) Carry out retanning treatment on the softened Tan sheepskin, the temperature of the retanning treatment is 30° C., and the time is 12 hours;

[0016] c) Degreasing the retanned sheepskin in the degreasing solution, the degreasing solution contains 0.6mol / L fatty alcohol polyoxyethylene ether and 5g / L washing powder, the degreasing time is 20min, and the temperature is 45°C;

[0017] d) Wash the degreased Tan sheepskin, and carry out a dyeing treatment after washing. The temperature of the first dyeing treatment is 32°C and the time is 35min. The pH of the dyeing slurry in the drum is 3.5, and the drum dyeing slurry contains 0.01g / For the dye of L, the dyeing paste also includes 6.0g / ml of salt, 1ml / L of quaternary ammonium salt formaldehyde-free color fixing agent, and 0.02g / L of acetic acid.

[0018] e) Add formic acid to the drum after the first dyeing treatment to perform...

Embodiment 2

[0023] a) softening the tanned sheepskin after tanning and drying at normal temperature;

[0024] b) Carry out retanning treatment on the softened Tan sheepskin, the temperature of the retanning treatment is 30° C., and the time is 12 hours;

[0025] c) Degreasing the retanned sheepskin in the degreasing solution, the degreasing solution contains 0.7mol / L fatty alcohol polyoxyethylene ether and 7g / L washing powder, the degreasing time is 20min, and the temperature is 40°C;

[0026] d) Wash the Tan sheepskin after the degreasing treatment, and perform a dyeing treatment after washing. The temperature of the first dyeing treatment is 30°C and the time is 35min. The pH of the dyeing slurry in the drum is 4, and the drum dyeing slurry contains 0.008g / For the dye of L, the dyeing paste also includes 6.0g / ml of salt, 1ml / L of quaternary ammonium salt formaldehyde-free color fixing agent, and 0.02g / L of acetic acid.

[0027] e) Add formic acid to the drum after the first dyeing tr...

Embodiment 3

[0032] a) softening the tanned sheepskin after tanning and drying at normal temperature;

[0033] b) Carry out retanning treatment on the softened Tan sheepskin, the temperature of retanning treatment is 32°C, and the time is 10h;

[0034] c) Degreasing the retanned sheepskin in the degreasing solution, the degreasing solution contains 0.6mol / L fatty alcohol polyoxyethylene ether and 7g / L washing powder, the degreasing time is 20min, and the temperature is 40°C;

[0035] d) Wash the degreased Tan sheepskin, and carry out a dyeing treatment after washing. The temperature of the first dyeing treatment is 30°C and the time is 35min. The pH of the dyeing slurry in the drum is 4, and the drum dyeing slurry contains 0.016g / The dye of L, also comprises the salt of 6.0g / ml, the acetic acid of 2ml / L quaternary ammonium salt formaldehyde-free fixing agent, the acetic acid of 0.02g / L in the dyeing paste.

[0036] e) Add formic acid to the drum after the primary dyeing treatment for a ...

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Abstract

The invention discloses a method for dyeing Tan sheep skin, which comprises the following steps: softening Tan sheep skin subjected to tanning and airing, and sequentially retanning and dyeing the Tan sheep skin. The dyeing process comprises primary dyeing and secondary dyeing in a rotating drum, wherein the primary dyeing is implemented by dyeing the Tan sheep skin in the rotating drum, in which the dye amount is 1 / 2-3 / 5 of the total amount, at 30-32 DEG C for 30-35 minutes; primary color fixation is carried out after the primary dyeing; after the primary color fixation, the rest of dye is added into the rotating drum to carry out secondary dyeing at 60-65 DEG C; and after the secondary dyeing, secondary color fixation is carried out. The dyeing and color fixation are sequentially carried out twice, thereby avoiding the phenomena of nonuniform dyeing and unclear pores due to thick coating, and ensuring the uniform dyeing of the Tan sheep skin. The treatment time of the whole dyeing technique is short.

Description

technical field [0001] The invention relates to the field of fur processing, in particular to a method for dyeing sheepskin. Background technique [0002] Tan sheepskin is one of my country's traditional export native products. It is well-known at home and abroad for its strong leather board, light weight and warmth, smooth and beautiful fur, and curved wave pattern. It is a unique animal husbandry resource in Ningxia. Existing Tan sheepskin dyeing is generally completed in a drum. Due to the structure of the Tan sheepskin and the particularity of its fur, it is prone to uneven dyeing and serious color loss. Therefore it is necessary to provide a method for uniform dyeing and dyeing of sheepskin. Contents of the invention [0003] The purpose of the present invention is to provide a method for dyeing Tan sheepskin, which can uniformly dye Tan sheepskin. [0004] In order to achieve the above object, the present invention adopts the following technical scheme: a process f...

Claims

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Application Information

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IPC IPC(8): D06P3/30D06P1/673D06P1/66D06P1/653D06P5/04C14C3/08C14C3/02C14C5/00
Inventor 丁生国马占国席荣杨丽娟丁晓龙
Owner 宁夏成丰农业科技开发股份有限公司
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