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Clean production technology of Tibet lamb skin

A clean production and sheepskin technology, applied in small raw hide/big raw hide/leather/fur treatment, small raw hide/big raw hide/leather skin/fur chemical treatment, animal husbandry, etc., can solve the problem that chrome tanning waste liquid cannot be effectively treated , can not be effectively treated, low dye utilization rate and other problems, to achieve clean production, bright and white fur, good performance effect

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

However, there are two following environmental pollution problems in the existing Tan sheepskin production: one is that the chrome tanning process is mainly used in the Tan sheepskin tanning process, and the chrome tanning waste liquid produced cannot be effectively treated and pollutes the environment; the other is the dyeing process A large amount of waste liquid containing a high concentration of dyes can not be effectively treated, pollutes the environment, and the utilization rate of dyes is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a) Carry out deashing and impurity removal to Tan sheepskin, put it into acetic acid solution and soak;

[0017] b) Carry out tanning treatment on the soaked Tan sheepskin, the temperature of the tanning treatment is 25-28°C, the time is about 4 hours, the pH of the tanning treatment solution is about 7, and the compound tanning agent in the tanning treatment solution is 15-20g / L The compound tanning agent comprises the following components by weight: the aluminum chloride of 5 parts by weight, the phosphonium tetrahydroxysulfate of 8 parts by weight, the acrylic resin retanning agent of 20 parts by weight, the fatty alcohol polyoxyethylene of 0.5 parts by weight Ether and the sodium methylene dimethyl dinaphthalene sulfonate of 0.7 weight part;

[0018] c) Bleaching the Tan sheepskin after the tanning treatment, the pH of the rinse solution used in the bleach treatment is about 7.5, and the rinse solution includes 20-25g / L of sodium chloride, 3-4g / L of sodium pyrophosp...

Embodiment 2

[0033] a) Carry out deashing and impurity removal to Tan sheepskin, put it into acetic acid solution and soak;

[0034] b) Carry out tanning treatment on the soaked Tan sheepskin, the temperature of the tanning treatment is 28-30°C, the time is 3 hours, the pH of the tanning treatment solution is 6.5, and the compound tanning agent is added in the amount of 10-15g / L in the tanning treatment solution , the composite tanning agent comprises the following components by weight: 4 parts by weight of aluminum chloride, phosphonium tetrahydroxysulfate of 7 parts by weight, the acrylic resin retanning agent of 15 parts by weight, the fatty alcohol polyoxyethylene ether of 0.5 parts by weight and 1 The ethylenediamine tetramethylene ammonium phosphate of parts by weight;

[0035] c) Bleaching the Tan sheepskin after the tanning treatment, the pH of the rinse solution used in the bleach treatment is about 7, and the rinse solution includes 20-22g / L of sodium chloride, 3-4g / L of sodium p...

Embodiment 3

[0050] a) Carry out deashing and impurity removal to Tan sheepskin, put it into acetic acid solution and soak;

[0051] b) Carry out tanning treatment on the soaked Tan sheepskin, the temperature of the tanning treatment is 27-28°C, the time is 3 hours, the pH of the tanning treatment solution is 6.5, and the compound tanning agent is added in the amount of 15-20g / L in the tanning treatment solution , the complex tanning agent comprises the following components by weight: 5 parts by weight of aluminum chloride, phosphonium tetrahydroxysulfate of 5 parts by weight, the acrylic resin retanning agent of 10 parts by weight, the fatty alcohol polyoxyethylene ether of 1 weight part and 0.7 The ethylenediamine tetramethylene ammonium phosphate of parts by weight;

[0052] c) Bleaching the Tan sheepskin after the tanning treatment, the pH of the rinsing solution used in the bleaching treatment is 7.5, and the rinsing solution comprises sodium chloride of 20g / L, sodium pyrophosphate of...

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Abstract

The invention discloses a clean production technology of Tibet lamb skin, which comprises the following steps of: performing tanning treatment on the Tibet lamb skin by a composite tanning agent; performing bleaching treatment on the Tibet lamb skin, and performing dyeing treatment on the bleached Tibet lamb skin. The dyeing treatment comprises the following steps of: performing drum primary dyeing in a drum of low-concentration dye and performing jet dyeing on the Tibet lamb skin after the drum primary dyeing; and performing tanning treatment on the Tibet lamb skin by the composite tanning agent, wherein the residual composite tanning agent of the tanning treatment can be recycled, and the tanning agent is firmly combined with collagenous fiber to facilitate the treatment on chrome tanning waste liquid. Meanwhile, due to the dyeing combining the drum primary dyeing and jet dyeing, the consumption of the dye can be reduced, the phenomena of non-uniform dyeing and thick coating and unclear pores can be avoided, and the cost of the dye and the treatment amount of sewage are reduced, thus clean production of the Tibet lamb skin is realized.

Description

technical field [0001] The invention relates to the field of animal fur processing, in particular to a clean production process of 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. However, there are two following environmental pollution problems in the existing Tan sheepskin production: one is that the chrome tanning process is mainly used in the Tan sheepskin tanning process, and the chrome tanning waste liquid produced cannot be effectively treated and pollutes the environment; the other is the dyeing process A large amount of waste liquid containing a higher concentration of dyes in the process cannot be effectively treated, pollutes the environment, and the utilization rate of dyes is low. Contents of the inventio...

Claims

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Application Information

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IPC IPC(8): C14C3/02D06P3/30D06P1/10D06P1/00D06P5/04D06L3/02D06L4/12D06L4/13
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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