Carding is
the process by which long strikes of jute fibres, while passing through high
speed pinned rollers, are broken down into an entangled mass and delivered in
ribbon form of uniform weight per unit length.
Objects of Carding
- To break down the long strikes of jute and split up
- To individualize the fibre
- To reduce the fibres weight per unit length
- To make sliver of uniform weight per unit length
- To mix the quantities of jute fibre
Cause of excessive droppings
in Jute Breaker Card
- Hard and specky jute fibre.
- improper emulsion application
- improper speed ratio of different rollers
- faulty roller pins
- more work load on pin
- high or low moisture regain
- if any roller is eccentric
Cause of excessive Sliver
wastage in Jute Breaker Card
- more moisture regain
- faulty roller setting
- faulty pin
- jam or lapping due to faulty drawing
- faulty auto stop motion
- frequent quality change
- operation negligency
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