|
Abstract:
|
It has been shown that fabrics constructed with air-jet spun yams have a
significantly lower cover factor than fabrics produced with either ring spun or rotor
spun yarns. The harsh hand of fabrics constructed with air-jet yarns have limited
their use, resulting in a slow growth rate. Therefore, for fabrics containing air-jet
spun yarns to be acceptable aesthetically as well as economically, the cover and hand
must be improved.
This thesis focuses on the effects of the latest machine and nozzle designs on the
aesthetics, especially cover, of fabrics produced with air-jet spun yams. The effects
and interactions of combining generations of Nl and N2 nozzles, altering Nl and N2
nozzle guides, changing Nl and N2 air pressures, and varying production speeds on
the cover of both woven and knit fabrics, while determining which yam
characteristics most affect the cover and hand of fabrics are also investigated. The
research can serve as a guideline for the selection of nozzles, spinning components
and spinning parameters in order to enhance the cover factor in fabrics containing airjet
spun yams without sacrificing yam quality.
|