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Content archived on 2024-05-24

Branding sheep with tar pitch: developing an eco-efficient process for wool treatment

Objective

The traditional method of branding causes serious problems to wool manufacturers because it supposes huge technological difficulties on the wool treatment. In the industrial process one of the steps consists on the treatment with strong detergents and sulphuric acid, which promote formation of lipid (tar pitch and coloured wax) tangles. Those tangles are very difficult to separate from the wool. Most companies separate it manually using hazardous organic solvents obtaining poor results. Workers using Pulverised trichloridethilene carry out the treatment of wool assuming high health risk and causing water and atmosphere pollution. Despite efforts, wool obtained presents small black spots, which cannot be separated. The problem is solved with a rude method: using dark tinctures to unmask black spots in woollen products. A new chemical process based on Eco-friendly products could solve this problem, which affects both company benefits and environment and health workers.

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Coordinator

CIPRIANO RODRIGUEZ ARIAS, S.A.
EU contribution
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Address
RODRIGUEZ YAGÜE 26.
37700 BEJAR
Spain

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Participants (1)

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