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What is "Orientation" - Definition & Explanation

a) The degree of parallelism of fibres, usually as a result of a combing or attenuating action on fibre assemblies that causes the fibres to be substantially parallel to the main axis of the web or strand.

b) A preferred direction of linear molecules in the fine structure of fibres and usually caused by so stretching an extruded fibre that the length direction of the molecules tends to lie parallel to the main axis of the fibre.

c) In the case of natural fibres, a preferred direction of linear molecules laid down during growth, e.g. a spiral around the fibre axis in cotton.

The alignment of the crystalline structure in polymeric materials so as to produce a highly uniform structure. Orientation can be accomplished by cold drawing or stretching during fabrication.

Some other terms

Some more terms:

A knitted fabric with a rib pattern. Depending upon the usage, the pattern can be altered to exhibit different rib effects. Rib fabric is used mainly in round necks and cuffs for certain types of...
An insoluble colorant is printed on the fabric as a paste or emulsion, heat cured and bound to the fabric with resins or binders. Allows for the printing of fabrics with fiber blends that would be...
The production of a layer of protruding fibres on the surface of fabrics by brushing, teazling or rubbing. NOTE: The fabric, in open width, is passed between rotating rollers covered with teazles,...
Two series of pairs of chips that show increasing contrast within pairs, and are used visually for comparing the differences in colour of textile specimens or the degrees of staining of transfer...
For film-forming wood finishes, the measure of reflectivity of light. This is normally measured as a percent of light reflected at a 60 degree incident. So it ranges from 0 to 100. Different...

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