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Preparation and Application of an s-Triazine-Based Novel N-Halamine Biocide for Antimicrobial Fibers
Lee, Jae-Woong,Broughton, Royall M.,Akdag, Akin,Worley, S.D.,Huang, Tung S. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.2
N-halamines serve as important antimicrobial agents. Development of this class of compounds has been shown to provide benefits especially from a biocidal point of view. A novel s-triazine-based N-heterocycle, dichloro-m-aminophenylhydantoinyl-s-triazine (DAPHT), which could be rendered antimicrobial through exposure to diluted chlorine bleach; was synthesized and characterized by $^1H\;NMR$, $^{13}C$ NMR, and FT-IR. A finishing method was used to apply the N-halamine precursor onto cotton fabric, and the optimum conditions for finishing were investigated. The DAPHT-treated cotton fabric had durable antimicrobial properties up to 50 standard washing cycles and was rechargeable under normal laundry/bleaching conditions. The antimicrobial efficacy against Gram-positive and Gram-negative bacteria was demonstrated.