Abstract
The silk fabric was chemically modified with 3-(trimethoxysilyl) propyl dodecyl dimethyl ammonium chloride (HSQA), a cationic modifying agent, to promote antibacterial property against S. aureus and E. coli. The dyeing and colorfastness properties of modified fabrics with commercial synthetic dyes, that is, acid and reactive dyes were also improved. The modified silk fabrics also exhibited some improved resiliency. Therefore, the wear properties of fabrics were expected to be improved by the technique of modification. However, the modification caused a slight decrease in the tensile strength of silk fabrics, as well as the whiteness and wettability because of introducing hydrophobic siloxane chains into amorphous regions of silk fibroin. The surface structure of modified silk fiber was studied by X-ray photoelectron spectra (XPS) and FT-IR spectra. Key words: Silk fabric; multiple-function; Wear property; antibacterial property; X-ray photoelectron spectrum; FT-IR spectrum
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