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Antimicrobial Efficacy of a Natural Dye from the Neem Leaves Applied to a Plasma-Activated Surface of Cellulose Knitwear

In this paper, the effectiveness of Neem (Azadirachta indica) leaves as an natural bioactive agent for textile was investigated. Dyeing of cellulose knitwears were carried out by exhaustion from the bath with optimal concentration of natural coloured extract from the Neem leaves, with and without mordant. Before dyeing, cellulose samples were pretreated with argon and oxygen low-pressure cold plasma under defined conditions. The obtained results were analysed by instrumental methods of surface analysis, colorimetric parameters analysis and microbiological testing against specified bacteria.

Neem extract as bioactive agent, plasma pretreatment, antimicrobial efficacy, knitwear.

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