Volume 115, 22 January 2015, Pages 559–567
Cellulosic/wool pigment prints with remarkable antibacterial functionalities
Highlights
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- XAN and GMC favored DODAB adsorption at the liquid/air interface.
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- DODAB-XAN aggregates increased with increasing DODAB concentration.
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- DODAB-GMC aggregates remained equal sized with increasing DODAB concentration.
Abstract
Several
bio-active agents namely choline chloride, triclosan derivative,
PEG-600 and 4-hydroxybenzophenone were successfully included into
solvent-free pigment formulations, in a single-stage process, followed
by screen printing and microwave-fixation to obtain antibacterial
functionalized cellulosic/wool pigment prints. Results obtained signify
that both the improvement in functionalization and coloration properties
are governed by type of antibacterial agent, kind of substrate as well
as pigment colorant. The imparted antibacterial activity of the loaded
bio-active agents follows the decreasing order: G+ve (Staphylococcus aureus) > G−ve (Escherichia coli),
keeping other parameters constant. The imparted functional and
coloration properties showed no significant decrease even after 15
washings. Mode of interactions among the nominated substrates, the
pigment paste constituents and the bioactive agents were also proposed.
Keywords
- Cellulose/wool blend;
- Solvent-free;
- Pigment printing;
- Single-stage process;
- Antibacterial finish
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