Pick: Pick is a single weft yarn in woven fabric.
Picking: It is the process of weft yarn insertion in the warp shed. Picking is the second primary motion in the weaving.
Objectives of Picking :
To throw the Shuttle at a pre-determined speed.
It delivers the shuttle from one shuttle box to the other.
To insert the weft yarn through the shed.
Types of Picking:
Water Jet Picking
Air Jet Picking
Classification of Shuttle Picking:
1. Over Picking
2. Under Picking
Semi Positive Picking
1.Over Pick Mechanism – Cone Over Pick Mechanism
2. Under Pick Mechanism
A) Side – level Under Pick Mechanism
B) Side – Shaft Under Pick Mechanism
C) Cone Under Pick Mechanism.
Over Pick : In this case the picking arm position is situated above the shuttle box.
Under Pick : In this case the picking arm position is situated below the shuttle box.
Difference between over pick and under pick :