Loading...Carding action:
If two close surfaces have opposite wire direction & their speed direction or relative motion also is opposite, then the action between two surfaces is known as carding action.
Carding action is occurred between flat & cylinder. Here pin direction & rotational direction both are opposite.
Result by the action of carding:
- Maximum individualization of fibres is achieved in this region by opposite spikes.
- Neps, short fibres, dirt & dust are removed.
- The difference of surface speed cylinder & flat is more. So carding actions maximum occurred.
Stripping action:
When two close surfaces have same wire direction & their speed direction or relative motion is also same, then the action between two surfaces is known as stripping action.
Stripping action is occurred between taker-in & cylinder. Here pin direction & rotational direction both are same.
Result by the action of stripping:
- Trash, neps are transferred from cylinder & taker-in & doffing by stripping action.
Doffing action:
When two close surfaces wire point are inclined in opposite direction & their speed direction or relative motion is also same, then the action between two surfaces is known as doffing action.
Doffing action is a special carding. The action takes place between cylinder & doffer. Here pin or wire direction is opposite but rotational or speed direction is same.
Result by the action of doffing:
- We get sliver from doffer (sliver formation).
