- •For a class1 fibre, any leading hook present in the fibre as it lies on the rotor goes forward into the yarn as a trailing hook & vice versa.
- •For class2 fibres , leading hooks pass into the fibre as leading hooks, but any original trailing hooks will almost certainly be straighten out, either as the fibres are snatched from the tube or by frictional contact with the fibre ring.
- •For class3 fibres, the end result depends upon the pick up point relative to any hooks. There is strong tendency to create new leading hooks in fibres, whether they be originally straight or hooked, whereas there is no corresponding tendency to create new trailing hooks.
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