الفهرس 
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Abstract
Novel biocidal carpets have been prepared by treating their fibers with some types of biocides to increase their biocidal activity. This was achieved in two different methods; direct halogenation of fibers and coating of fibers with polymeric material containing biocidal moieties. In the direct halogenation method the N-H groups of the polyamide fibers (Nylon 6) were treated with hypochlorite (NaOCl) to form N-halamine (N-Cl). This was followed by determining the biological activity of the fibers against some types of fungi (Aspergillus niger and Aspergillus oryzae). The degree of alteration in fibers physical and mechanical properties upon halogenation was determined. The treated fibers of nylon 6 with 5% sodium hypochlorite up to 24hours have provided an antimicrobial action against both Aspergillus niger and Aspergillus oryzae, with inhibition zoon of 5.2 and 3.7 cm respectively. Unfortunately the tenacity of the treated fibers with this concentration was highly damaged and this can be seen from the low value of tensile strength (10.62 cN/tex) compared with non treated fibers (25.26 cN/tex). Decreasing the concentrations of sodium hypochlorite has improved the physical and mechanical properties but the antimicrobial activity was reduced even against bacteria.