Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 50, Issue 3, Pages 782-787Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2011.11.025
Keywords
Laccase-mediated system; Cotton fabric; Bleaching; Whiteness; XRD
Funding
- National Natural Science Foundation of China [21006010]
- Fundamental Research Funds for the Central Universities
- Research Fund for the Doctoral Program of Higher Education [2009007512001]
- UK-CHINA Joint Laboratory for Therapeutic Textiles and Transfar Group, Ministry of Education of PR China [B07024]
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This study evaluates the bleaching efficiency of the hydrogen peroxide bleaching process combined with laccase-mediated system pretreatment (LMS-HPBP) in the treatment of scoured cotton fabric. By changing the factors of laccase-mediated system pretreatment and the hydrogen peroxide bleaching process and examining the subsequent whiteness value and retained tensile strength of the samples, we find three LMS-HPBP processes that are more environment friendly than the conventional hydrogen peroxide bleaching process (CHPBP): (i) bleaching with lower dosage of hydrogen peroxide; (ii) bleaching at reduced temperature; (iii) bleaching for shortened duration. Whiteness, retained tensile strength and K/S values of cotton fabric samples treated by i-iii processes were similar to or higher than those by CHPBP. X-ray diffraction (XRD) analysis also demonstrated that the three processes rendered fabric of both lower crystallinity and bigger crystallite size than those by CHPBP. In addition, the green short-flow process was developed to treat cotton fabric and the results obtained shows this method is feasible as a new energy-saving process. (C) 2011 Elsevier B.V. All rights reserved.
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