Now industry of textile giving fabrics is paying attention to give an additional function on fabrics. First applying in electronic industry, than using on nano or biomedical domain. About applying on biomedical domain, improving wound dressings is common. A patient using wound dressings with a bad air permeability often feels not comfortable like hot and windless. So it needs a good air permeability to adjust to hot and windless.
In this experiment, we confer the affect of fabric structure and concentration of chitosan on air permeability of pbolyester weft-kintted fabric structure and concentration of chitosan. We produced weft-kintted fabric with polyester filament having biocompatible. And we changed organize of weft-kintted fabrics to make a variation on air permeability. We coated chitosan on weft-kintted fabrics to analysis the air permeability around coating chitosan.
A result of this experiment, air permeability of PET weft-kintted fabric is decreasing when thickness of yarns and numbers of tuck is increasing before coating chitosan. After coating, air permeability of PET weft-kintted fabric has a down then up trend following concentration of chitosan is increasing. Concentration of chitosan is the minimum in 1.0%. It is bad that PET weft-kintted fabric making by two yams which number is 150D/144 f, and it does not have a obvious change with changing organize of fabric.
