The first step in the processing and conversion of jute fiber into fabric
at the mill is to blend various qualities and grades of jute to prepare a
suitable batch to obtain uniformity in strength and colour and give the
precise quality of yarn required for spinning. The batch is then fed into a
softener to render it thoroughly pliant with the help of an emulsion of oil
and water. The softened jute goes to the preparing department for the
operations of carding and drawing. Carding reduces the average length
of the fibers by teasing and combing and delivers them in the form of a
long continuous ribbon called sliver. The drawing machines draw out and
attenuate the sliver, place the fibers parallel and, by means of a doubling
process, produce a smoother and more even sliver. The slivers are spun
into yarn which is wound on to spools or cops for use on the looms in
weaving various kinds of cloth. The finishing process includes damping
and calendaring, folding, cutting and bag-making, baling in hydraulic
press and packing.