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The processing technology of Tan sheepskin, Tan sheepskin and fur products

A treatment process and sheepskin technology, applied in fur mechanical treatment, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather/fur mechanical treatment, etc. Fur products are of low grade and the added value of Tan sheep second fur cannot be improved, so as to achieve the effect of smooth and uniform fur ears, good retention, and avoid hard and brittle fur

Active Publication Date: 2021-04-13
宁夏西部皮草有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the technical level in the processing of Tan sheepskin is generally relatively backward, and it is usually impossible to maintain the natural nine-curved characteristics of Tan sheepskin while ensuring the green and environmental protection of the product.
As a result, the added value of Tan sheep's second fur cannot be improved, and the grade of fur products produced is lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A treatment process for beach wool skin, comprising:

[0055] S1. Tanning the Tan sheepskin after the pre-tanning treatment, specifically including:

[0056] Control the water temperature at 36°C, stir the Tan sheepskin sheets in the white tanning solution with a white tanning agent concentration of 3.0g / L, a formic acid concentration of 1.5g / L, and a salt concentration of 50g / L for about 30 minutes, then turn it off and combine it overnight, turn it off When combined, it rotates for about 5 minutes per hour and then stops. Add baking soda according to the standard of 2.0 per liter of solution, stir for about 30 minutes, turn and stop for about 4 hours, and turn and stop for about 5 minutes per hour and then stop. Add soda ash in 5-6 times until the pH stabilizes to 7.8-8.0, and let stand overnight.

[0057] S2. Neutralizing and retanning the Tan sheepskin, specifically including:

[0058] The water temperature was controlled at 38°C, and Tan sheepskins were treated ...

Embodiment 2

[0066] A kind of processing technology of beach sheepskin, its difference with embodiment 1 is: in the S3 step, the beach sheepskin sheet adopts machine comb uniformly. The operation of all the other S1, S2, S4 is identical with embodiment 1.

[0067] After testing, the obtained beach wool fur: the leather board is soft and severely damaged. Skin board shrinkage temperature ≥85°C. The nine curves of the hair ears are not obvious, the hair ears are uneven, and the coat color is smooth. Detected formaldehyde content ≤ 75mg / kg.

[0068] The shrinkage temperature of the tanned sheepskin is high, no chrome tanning is required before dyeing, and hexavalent chromium is not detected in the dyed product.

Embodiment 3

[0070] A kind of treatment process of beach sheepskin, its difference with embodiment 1 is: in S4 step, adopt common water to carry out water shedding as hanging washing liquid. The operation of all the other S1, S2, S3 is the same as in Embodiment 1.

[0071] After testing, the obtained beach wool fur is soft and has good integrity. Skin board shrinkage temperature ≥85°C. The nine curves of the hair ears are more obvious, the hair ears are uneven, and the coat color is not smooth. Detected formaldehyde content ≤ 75mg / kg.

[0072] The shrinkage temperature of the tanned sheepskin is high, no chrome tanning is required before dyeing, and hexavalent chromium is not detected in the dyed product.

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Abstract

The processing technology of Tan sheepskin, Tan sheepskin and fur products belong to the field of fur finishing. The treatment process includes: tanning and drying the Tan sheepskin after the pre-tanning treatment. Tanning includes white tanning and neutralized retanning. Drying includes combing and hanging washing. It not only maintains the natural nine-curved characteristics of beach sheepskin, but also realizes low formaldehyde and chrome-free. Beach sheepskin is obtained according to the above-mentioned treatment process. Fur products include the above-mentioned beach wool fur. The natural nine bends are well preserved, soft, smooth, green, environmentally friendly, and the added value is greatly improved.

Description

technical field [0001] The invention relates to the field of fur finishing, and in particular to a process for treating wool fur, wool fur and fur products. Background technique [0002] Ningxia Tan sheep breed and live at the foot of Helan Mountain, near the Yellow River. It is one of the excellent sheep breeds for fur in my country. Ningxia Tan sheep has a long-standing reputation, mainly due to the precious lamb skin. When Tan sheep lambs are 35 to 40 days old, the skin obtained after slaughter is called "er fur". Tan sheep's second-fur fur has less fleece, clear velvet roots, no adhesion, and wavy flower bends, commonly known as "nine bends". The fur is long, soft, flexible, and smooth, and is known as "light fur". Known as one of Ningxia's "Five Treasures", Baibao is unique in the world's fur. Ningxia Tan sheep second fur is favored by foreign businessmen for its unique flexibility, warmth retention and curvature of the ears. [0003] As a high-grade and scarce fur r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C1/04C14C1/08C14C3/04C14C3/08C14C3/28C14B15/00
CPCC14B15/00C14C1/04C14C1/08C14C3/04C14C3/08C14C3/28
Inventor 王自荣李惠琴张献忠王金云
Owner 宁夏西部皮草有限公司
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