Journal of Textile Science & Engineering

Govindanb N

Publications

• Research Article
  Eco-friendly, Salt-Free Reactive Dyeing by Cationization of Cotton with Amino Acids Obtained from Soya Bean Hull
  Author(s): Dessiea A and Govindanb NDessiea A and Govindanb N
  
  Cotton acquires negative charge in aqueous medium and thus repels negatively charged dye anion during dyeing. Such repulsion between fibre and dye is offset by using large quantity of salt in dye bath, particularly for reactive dyes. A low dye bath exhaustion also leads to low dye fixation of reactive dyes on cotton. Thus, the use of high salt concentration and low reactive dye fixation lead to environmental problems related to highly coloured effluent with high salt content. Hence, modifying the cotton fibre to increase dye-fibre interaction is therefore the best route to overcome the lack of affinity for cotton to reactive dyes making salt-free reactive dyeing. However, majority of the chemicals used for imparting cationic sites in cotton are themselves not eco-friendly. This paper presents the possibility of salt-free reactive dyeing of cotton by modify.. Read More»
  DOI: 10.4172/2165-8064.1000385

  Abstract PDF