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Cationization as Tool for Functionalization of Cotton
Fig. 10 Desired multifunctional effect on cationic cotton
Fig. 11 a Repulsion in
conventional finishing,
b attraction after cationic
treatment
Repulsion
Cotton
Anionic Chemical
-
Attraction
Cationic Cotton
Anionic Chemical
-
(a)
(b)
In the cationized cotton finish, anionic chemical ions show increased affinity
towards cationic sites on the fibre and they readily combine to form ‘finishing agentfibre’ complex with a strong ionic bond [67].
Thiol–epoxy chemistry showed a permanent and durable antimicrobial property
on cotton substrate. In this process, cotton was chemically modified by using 3mercaptopropyltriethoxysilane (KH-580). This agent developed thiol groups on the
cotton surface that helped ease and strong attachment of quaternary ammonium
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