Combined Bioscouring and Bleaching of Cotton Fibres

Cotton fibres were scoured with acid and alkaline pectinases and bleached with peracetic acid. Because of similar treatment conditions of both processes, they were combined in one bath as one-step and two-step processes. At the beginning of the treatments, pH 5 was set for acid pectinases and pH 8 f...

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Bibliographic Details
Published inJournal of natural fibers Vol. 3; no. 2-3; pp. 83 - 97
Main Authors Tavčer, Petra Forte, Križman, Pavla, Preša, Polonca
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 08.08.2006
Subjects
bleaching
Cotton
enzymes
pectinases
peracetic acid
scouring
water absorbency
whiteness
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Summary:Cotton fibres were scoured with acid and alkaline pectinases and bleached with peracetic acid. Because of similar treatment conditions of both processes, they were combined in one bath as one-step and two-step processes. At the beginning of the treatments, pH 5 was set for acid pectinases and pH 8 for alkaline pectinases. To activate the peracetic acid, pH was also adjusted during the process. Tetrasodium pyrophosphate was added to improve the effects of bleaching and scouring. The highest CIE whiteness values and water absorbencies were obtained in a one-step process with alkaline pectinases and peracetic acid.
ISSN:1544-0478
1544-046X
DOI:10.1300/J395v03n02_06