4. Jute:
Jute is a long soft,shiny vegetable
fiber that can be spun into coarse,
strong threads. It is one kind of
cellulosic fiber.
It is also called golden fiber. Jute is
composed of 65% cellulose and 35%
natural wages, oils, and lignin.
Jute fiber is used for making twine,
rope, matting etc…..
Introduction
5. Flow chart of Jute Manufacturing process
Piecing up
Softening and Lubricating
Batching, Conditioning & Piling
Carding
Spinning
Warp yarn
Warp winding/Spool winding Twisting
Weft yarn
Weaving
Finishing
Drawing & Doubling
Selection of Jute for a batch
Cop winding
Cop winding Reeling
6. Selection:
• Opened to find out any defect & to remove the
defective portion from the mora by experienced
workers.
• Should be arranged with due consideration of
prices, available stock, duration of stock &
suitability for spinning & weaving.
The bales are assorted according to end use like
Hessiean weft, Sacking warp, Sacking weft etc.
7. Softening and Lubricating:
• jute moras are made soft & pliable.
• Two methods are used for softening.
• An emulsion plant is used to lubricate & soften
the bark and gummy raw jute.
In this softening process jute becomes soft and
pliable and suitable for carding.
8.
9. Batching, Conditioning & Piling:
• Cover all the process preparatory to
carding.
• Add oil and water to make the jute fiber
flexible, soft and stiff free.
• Conditioning or piling refers to the rest
stage. in which jute is given after the water
and oil have been applied .
10. Carding:
The process by which long reeds to jute while
passing through high speed pinned roller and
broken down into an entangled mass and delivered
in the form of ribbon uniform weight per unit length
called jute carding.
There are three types of jute carding :
Breaker carding.
Inner carding.
Finisher carding.
11. Breaker carding:
In the breaker carding machine soften jute after
piling is feed by hand in suitable weight.
The machine by action with different rollers turns
out raw jute in the form of jute sliver for finisher
carding.
In this process root cutting is necessary before
feeding the material to the hand feed breaker
carding machine.
12.
13. Finisher carding:
Finisher carding machine make the sliver more uniform
and regular in length and weight obtained from the
breaker carding machine.
Finisher carding machine is identical to the breaker
carding machine ,having more pair of rollers ,staves,
pinning arrangement and speed.
Nearly 4 to12 slivers obtained from breaker carding
machine is feed on this machine.
The material thus obtained is send to drawing section.