Abstract:
Castor oil having low content of
unsaponifiable matters was chosen for the
development of new jute batching emulsion
processes. The suitability of the castor oil was
also assessed in terms of its favourable colour,
odour, specific gravity, acid value, iodine value,
saponification value, viscosity, pour points and
flash points in comparison to those of
conventional JBO. Different recipes for the
production of emulsions were standardized in the
industrial scale and their suitability were assessed
according to their stability, specific gravity,
temperature, viscosity and pour points. The
recipes were used to spin jute fibre in the jute mill
machines. The yarn products were studied to
evaluate their work performances based on their
physico-chemical properties: moisture regain,
t.p.i., W.I., count, strength, tenacity, extension,
textile modulus, toughness, QR, oil content and
unsaponifiable matters. The yarn products were
particularly evaluated in terms of their
unsaponifiable matters based on the IJSG
criterion. The yarns of processes show quality
ratio 93.93 to 104.20 and unsaponifiable matters
ranging from 126.05 to 414.92 mg/kg yarn and
easily pass the IJSG criterion. The processes
therefore appear to be of commercial importance.
