Method for coloring cellulose fiber and colored cellulose fiber obtained thereby
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United States of America Patent
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Jan 27, 2009
Grant Date -
Feb 15, 2007
app pub date -
Nov 8, 2004
filing date -
Nov 12, 2003
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Abstract
A method for producing a colored cellulose fiber, comprising:a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.
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