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

TY - JOUR

T1 - Effect of aqueous glycine treatment on the fine structure and dyeing ability of cotton

AU - Remadevi, Rechana

AU - Rajkhowa, Rangam

AU - Crowle, Genevieve

AU - Wang, Xungai

AU - Zhu, Haijin

AU - Gordon, Stuart

N1 - Publisher Copyright: © 2018

PY - 2018/12/15

Y1 - 2018/12/15

N2 - 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.

AB - 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.

KW - Cellulose structure

KW - Cotton

KW - Crystallinity

KW - Dye absorption

KW - Glycine treatment

UR - http://www.scopus.com/inward/record.url?scp=85053061082&partnerID=8YFLogxK

U2 - 10.1016/j.carbpol.2018.08.057

DO - 10.1016/j.carbpol.2018.08.057

M3 - 文章

C2 - 30287011

AN - SCOPUS:85053061082

SN - 0144-8617

VL - 202

SP - 365

EP - 371

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

ER -