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The effect of cellulase treatment in textile washing processes
Author(s) -
CavacoPaulo Artur,
Cortez João,
Almeida Luis
Publication year - 1997
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1997.tb01902.x
Subject(s) - cellulase , cellulosic ethanol , hydrolysis , textile , chemistry , cellulose , denim , pulp and paper industry , materials science , chemical engineering , chromatography , composite material , organic chemistry , engineering
An attempt has been made to understand the interaction between cellulase hydrolysis and mechanical agitation by separating them into two sequential steps. Cotton fabrics were treated with cellulase mixtures of different compositions, and then washed in a process involving a high level of mechanical agitation. The cellulosic material removed during washing had different amounts of reducing ends depending on the cellulase composition used in the initial treatment. The fibre surface did not change significantly after cellulase treatment, but after washing the surface properties were completely different depending on whether the fabric had been previously treated with an endoglucanase– or a cellobiohydrolase–rich preparation. When denim fabrics were subjected to similar processing, it was verified that an increase in colour loss occurred in enzyme–treated fabrics, and that there was an interaction between different cellulase activities and backstaining.