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Article: Shrink-resistant wool.
- Article from:
- Advances in Textiles Technology
- Article date:
- February 1, 2002
CopyrightCOPYRIGHT 2002 International Newsletters. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Danish inventors have proposed an enzymatic treatment that makes wool shrink-resistant.
In US Patent 6 258 129, Novozymes A/S of Bagsvaerd says its objective is to reduce the shrinkage of wool, as measured by IWS test 31, to less than 2% (or an area shrinkage of less than 5%) after two cycles of ISO 5A.
The Patent proposes treating the wool, effectively in any form, with a low-temperature plasma of air, oxygen, nitrogen, ammonia, helium or argon; usually, air will be preferred. The gas should be at a pressure of about 0.1-5 torr and the treatment may vary from 2-300 s, but will usually be 5-30 s.
In the presence of a non-ionic wetting agent, ...