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What is "Friction Calendering" - Definition & Explanation

The process of passing fabric through a calender in which a highly polished, usually heated steel bowl rotates at a higher surface speed than the softer (e.g. cotton-filled or paper-filled) bowl against which it works, thus producing a glaze on the face of the fabric that is in contact with the steel bowl.

NOTE:

The friction ratio is the ratio between the peripheral speed of the faster steel bowl and that of the slower bowl and is normally in the range 1½:1 to 3:1.

A bright, shiny finish used on lining twills, sateen silesia, messaline and bind finish cloths. It is achieved when one calendar roller moves at a slightly increased speed over the other roller in the set. Rollers may or may not be heated.

Some other terms

Some more terms:

Bayadere
Silk in a crosswise rib (plain or twill weave). Has brightly colored stripes in the filling direction. Often black warp. The color effects are usually startling or bizarre. Mostly produced in India....
Yarn, Cabled
Two or more yarns (at least one of which is folded) (see yarn, doubled) that have been twisted together in one or more operations. NOTE: a) Combinations of folded yarns and single yarns may be...
Cut and Sew
A system of manufacturing in which shaped pieces are cut from a layer of fabric and stitched together to form garments. In the case of tubular knitted fabric, the cloth is either cut down one side...
Netting
A lightweight or heavy open-construction fabric made byknotting ortwistingyarns together, thereby forminggeometric patterns such assquares orhexagons.Ranges in weight from very sheer to very heavy...
Clo Value
A unit of thermal resistance. The insulation required to produce the necessary heat to keep an individual comfortable at 21 degrees Centigrade with air movement at .1 m/s. One clo is about equal to...

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