Desizing and bleaching of textile goods
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United States of America Patent
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Apr 1, 1980
Grant Date -
N/A
app pub date -
Aug 3, 1978
filing date -
Aug 9, 1977
priority date (Note) -
Expired
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Abstract
A process for desizing and bleaching textile goods containing, or consisting of, cellulose, by simultaneous enzymatic desizing and pretreatment with a solution of sodium dithionite and a conventional heavy metal complexing agent in the presence of a buffer system at pH 6-9 and subsequent conventional peroxide bleaching in the presence of little or no silicate as a stabilizer. The process improves the bleaching effect and the economics and reduces the risk of fiber damage or destruction or of silicate deposits without an additional treatment stage.
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