INVESTIGATIONS INTO SEQUENTIAL APPLICATION OF CATIONIC FIXING AGENTS AND TANNIN TO IMPROVE FASTNESS PROPERTIES OF SULPHUR BLACK DYED COTTON FABRIC
Author(s):
Quratulain Mohtashim1, Muriel Rigout2
1 Assistant Professor, Department of Textile Engineering, NED University of Engineering and Technology, Pakistan, Ph. +9221-99261261-8x2365, Fax: +9221-99261255, Email: qurat@neduet.edu.pk.
2 Associate Professor, School of Design, University of Leeds, UK, Ph. +44(0)113-343 3710, Fax: +44 (0)113-34 33704, Email: M.L.Rigout@leeds.ac.uk.
Volume:
XIV
No.
4
Pages:
93 - 103
Date:
September 2017
Abstract:
In this study, a two-stage aftertreatment using a cationic fixing agent and tannin was found to improve the wash fastness of sulphur black 1 dyed cotton fabric to ISO 1O5 CO9 washing. The light and rub fastness of sulphur black 1 dyed cotton fabric remained the same for untreated and aftertreated dyeings. The improved wash fastness was due to the formation of large molecular size, low solubility, cation-tannin complexes within the periphery of the dyed and aftertreated fabric.