Actions involved in draw frame

Necessity of draw frame:

To parallisation of fiber and blending carded-carded sliver. In carded sliver, fiber

present in hook form i.e. trailing hooks and leading hooks.

Tasks of draw frame:

_ Equalizing

_ Parallelizing

_ Blending

_ Dust removal

Drawframe

Actions involved in draw frame:

1. Drafting:

The process of attenuating or increasing length per unit weight of sliver.

It is mainly due to peripheral speed the rollers.

2. Doubling:

The process of combing two or more carded sliver into a single form is

called doubling. In generally six slivers are fed and converted into one i.e. six

doubling.

3. Drawing:

In the cotton industry, the term is applied exclusively to processing on

the draw frame, where he operational is one of doubling and drafting.

Drawing = Drafting + Doubling

Draw frame is carried out by two processes. One is called breaker draw frame and another

is finisher draw frame. In breaker draw frame, 8 or 6 doubling is done. In finisher draw

frame finer sliver is produced.