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Bio-reduction of Sulphur Dyes with Alkaline Pectinase
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作者 priyadarshi jaruhar jadu nandan chakraborty 《Journal of Chemistry and Chemical Engineering》 2013年第10期930-941,共12页
Sulphur dyes are invariably applied on cotton to produce deep shades at cheaper cost possessing all-round fastness properties except against chlorine. Being water insoluble, these dyes are reduced and solubilised with... Sulphur dyes are invariably applied on cotton to produce deep shades at cheaper cost possessing all-round fastness properties except against chlorine. Being water insoluble, these dyes are reduced and solubilised with sodium sulphide at boil to develop affinity for cotton. Application of sulphide has generated global debate because of its eco-unfriendly technology of dyeing. In this work, attempts were made to substitute sodium sulphide with alkaline pectinase. Obtained results suggested the ability of the latter to cause effective reduction and solubilisation of sulphur dyes. Stability of reduction baths as well as colour fastness was also reported to be in line with those obtained using sodium sulphide. 展开更多
关键词 Sulphur dye sodium sulphide PECTINASE dye strength stability color fastness
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