Abstract:

Quaternary ammonium salt of chitosan (HTCC) was prepared with 2, 3-epoxypropyltrimethyl ammonium chloride and chitosan due to the good biocidal property and water-solubility. The antibacterial activities of chitosan and HTCC were tested and compared by minimal inhibitory method, and they were respectively applied to the antibacterial finishing of Bombyx mori silk fabrics. The antibacterial activities of silk fabrics before and after treatment were tested by oscillation flask method. The results showed that the biocidal properties of chitosan and HTCC to staphylococcus and coli were both significant, and HTCC was better than chitosan. The biocidal properties of silk fabrics to staphylococcus and coli were both significantly improved after treatment with chitosan and HTCC, and the biocidal property of silk fabric with HTCC treatment was better than that of chitosan.