What question did this study set out to answer?

To investigate the feasibility of salt-free reactive dyeing of cotton fabric pretreated with chitosan to reduce harmful electrolyte concentrations in dyehouse wastewater.

April 1, 2014Chemical and Materials EngineeringOpen Access

Cationization of Cotton Fiber by Chitosan and Its Dyeing with Reactive Dye without Salt

View Full Paper

Ask AI

Bookmark

To investigate the feasibility of salt-free reactive dyeing of cotton fabric pretreated with chitosan to reduce harmful electrolyte concentrations in dyehouse wastewater.
Cotton fabrics were pretreated with chitosan solutions at concentrations of 1%, 2%, 3%, and 4% prior to dyeing with reactive dye without salt.
Dye absorption was determined by measuring color strength (K/S values) and compared against untreated fabric dyed conventionally.
Fastness properties of dyed samples were evaluated across washing, perspiration, and rubbing conditions.
Dye absorption increased with chitosan concentration, yielding K/S values of 1.6 (1%), 1.7 (2%), 2.2 (3%), and 2.9 (4%), compared to 1.9 for untreated dyed fabric.
Chitosan-treated dyed fabrics showed no deterioration in color fastness to washing and perspiration.
Wet rubbing fastness was slightly inferior at high chitosan concentrations due to higher depth of shade from elevated dyestuff absorption.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Experimental study demonstrates effective salt-free reactive dyeing of cotton fabric via chitosan pretreatment, suggesting an eco-friendly alternative to conventional electrolyte-heavy dyeing.

Cite This Study

Bhuiyan et al. (2014) studied this question.

synapsesocial.com/papers/6a711b36b5c1fe5ca9dfcb80 https://doi.org/10.13189/cme.2014.020402

View Full Paper

Ask AI

Bookmark

Implication

Experimental study demonstrates effective salt-free reactive dyeing of cotton fabric via chitosan pretreatment, suggesting an eco-friendly alternative to conventional electrolyte-heavy dyeing.

Cationization of Cotton Fiber by Chitosan and Its Dyeing with Reactive Dye without Salt

Key Points

Discussion

Implication

Cite This Study

Cationization of Cotton Fiber by Chitosan and Its Dyeing with Reactive Dye without Salt

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider