Bleaching method of natural fibers without dewaxing
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United States of America Patent
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Dec 14, 2004
Grant Date -
Dec 11, 2003
app pub date -
Feb 21, 2003
filing date -
Feb 22, 2002
priority date (Note) -
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Abstract
The invention provides a bleaching method of natural fibers. By the invention, it is possible to bleach raw cotton fibers without dewaxing. The method of the invention is to bring the natural fibers on each of which wax adhere, into contact with water solution containing hydroxy percarboxilic acid for bleaching. The natural fibers may be raw cotton fibers. The hydroxy percarboxilic acid may be perlactic acid. The water solution may contain hydroxy carboxilic acid, hydrogen peroxide and alkali agent with hydroxy percarboxilic acid.
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