The manufacture of conventional textiles usually involves
either weaving or knitting. The author and his colleagues have
devised a completely new technology for textile fabric construction
involving the use of simple elements. These elements are
basically similar in shape to sewing machine needles which interact
with each other in such a way that yarns 'stitch-knit' themselves
together to produce a fabric. As a result of this unique
interaction the number of loops produced is doubled when compared
to the time cycle of a conventional knitting action.
Further enhancement of at least doubled fabric production rates
should accrue from the dual effects of decreased yarn tensions
and the lowered dynamic disturbing forces of the simplified
knitting element manipulating system. A survey has been made of the looped-type textile manufacturing
processes and the most appropriate groups have been enumerated
in order to form a basis of comparison for the novel process.
A basic study (including computer aided graphics) of probable
textile structures, that could be produced by this technology, has
revealed a substantial range of novel fabrics. These fabrics have
been analysed and possible uses for them are suggested.
A powered research-rig has been designed and constructed on
which the important yarn manipulation characteristics have been
determined. This experimentation has facilitated a more positive
yarn pick-up to be evolved. As a result of this, more practicable
design tolerances may be given for the manufacture and setting-up of the manipulative elements. Moreover, narrow-width novel fabric
samples have been produced from spun-staple yarns at rates exceeding
the current commercially available maximum, thereby substantiating
the earlier predictions.
Finally, the new technology and its resulting products are
appraised and design proposals for a prototype machine are made;
it is hoped that this will be offered to industry in due course
for further development and potential exploitation.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.