a process of orienting a filament yarn by drawing it and then twisting it in integrated sequential stages.
a process in which synthetic filaments or yarns are strerched in order to orient the molecular chains in the polymer from which the filaments or yarns are made and thereby improve their strength.
Drawing (staple yarn):
operations by which slivers are blended, doubled or levelled, and reduced by drafting to a sliver or roving suitable for spinning.
Drawing (synthetic filaments and films):
the stretching of synthetic filaments or films of relatively low orientation to near their limit of plastic flow. The process orients the molecular chains in the direction of stretching.
an economical spinning system capable of using very short fibres. The resulting yarns tend to be of low tensile strength with a smooth appearance. The system can be used to produce low cost coloured yarns by wrapping a low cost fib
a twill fabric, usually piece-dyed, similar in construction to a denim.
a process for forming a web or batt of staple fibres by carding and/or air laying.
in the dry spinning process, polymer is dissolved in a solvent before being spun into warm air where the solvent evaporates. This leaves the fibrous polymer ready for drawing.