Twist liveliness

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The tendency of a yam to twist or untwist spontaneously.

Note 1: Examples of effects which may be caused by twist liveliness include snarling of yarns during processing and spirality in knitted fabrics.

Note 2: The direction of twist liveliness or torque, S or Z, is that of the twist change which takes place spontaneously when an end of yam or hanging loop is allowed to rotate.

Textile Resource (http://www.textile.org.uk)

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