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A new approach for dyeing and functional finishing for cotton fabric using Henna extract and TiO2 nano-sol was investigated. In this study, 3-chloro-2-hydroxy propyl trimethylammonium chloride was used to substitute metallic mordants (heavy-metal salts) in pre-treating cotton fabric. This eventually will prevent heavy metal pollution as well as obtain dyeing without addition of salt. TiO2 nano-sol...