Effect of Dye Concentration on UV Protection Property of Silk Fabric Dyed with Purple Corn Cob Using Pre-Mordanting Method

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Abstract:

A natural dye extracted from purple corn cob was applied to a silk fabric using pre-mordanting method, under different conditions. It was observed that with an increase in the dye concentration, the ultraviolet (UV) protection factor (UPF) values ranged between good and very good for the silk fabric. In addition, a darker colour, such as that provided by a FeSO4 and CuSO4 mordant, gave better protection because of higher UV absorption. Silk fabrics dyed with purple corn cob extract showed a light violetish-pink shade, while those dyed with alum violetish-pink colour. Silk substrates dyed with CuSO4 gave a green to greenish-pink colour, while those dyed with FeSO4 had a light yellow to violetish-gray colour. The results confirmed that natural dyes from purple corn cob extract with metal mordants have potential applications in fabric dyeing and in producing UV-protective silk fabrics.

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Advanced Materials Research (Volumes 1010-1012)

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508-511

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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