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separation of the plies of reinforcing fabric from the rubber matrix of a tyre, at the edge of the belt of reinforcement.
Bi-component fibres:
fibres spun from two different polymers. The most common types are made from polymers which have different melting points and are used for thermal bonding. Another variant is produced from polymers which have differing solubilities. In this case one polymer may later be dissolved out to leave ultra-fine filaments. An example is the production of suede-like fabrics. This process is also used to create crimping, in order to provide bulk or stretch. Last referenced in: Stretch fibres and fabrics: reaching new levels of comfort (Performance Apparel Markets Issue 38)
the direction diagonally across a piece of fabric at 45º to the warp and weft.
Bias belted tyres:
tyres reinforced by layers of tyre cord fabric arranged alternately so that the main load bearing yarns lie at an angle of less than 90° to the plane in which the tyre rotates and yarns of adjacent layers cross each other.
a fibre or yarn which has two different types of continuous filament components. The two components may, for example, be different polymers which shrink differently. (See also multicompartment fibres and yarns and multicomponent fibres and yarns.) Last referenced in: Stretch fibres and fabrics: reaching new levels of comfort (Performance Apparel Markets Issue 38)
