File(s) under permanent embargo

Effect of aqueous glycine treatment on the fine structure and dyeing ability of cotton

journal contribution
posted on 15.12.2018, 00:00 authored by Rechana RemadeviRechana Remadevi, Rangam RajkhowaRangam Rajkhowa, G Crowle, Xungai WangXungai Wang, Haijin Zhu, Stuart Gordon
Exhaustion dyeing of cotton means a significant proportion of dyestuff is not fixed onto the material and is drained out when the dyebath is emptied. This waste presents issues for dye houses in terms of remediating water quality and the loss of expensive dye chemicals. Work to improve the dyeing ability of cotton has been limited to modifying cotton’s cellulose structure by, notionally, environmentally hazardous treatments, e.g., concentrated caustic soda. Here we use a buffered, aqueous glycine treatment to improve the dyeing ability of cotton. The treated cotton showed improved dye absorption compared with control samples. An investigation of the structure of the treated cotton using Fourier Transform Infrared spectroscopy (FTIR) and 13C solid-state nuclear magnetic resonance (NMR) showed there was no appreciable change in crystallinity. However, there were changes in the chemical structure of the glycine-cellulose complex that were related to the pH of the buffered glycine treatment.

History

Journal

Carbohydrate polymers

Volume

202

Pagination

365 - 371

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0144-8617

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018, Elsevier Ltd.