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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 1:1 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:

A coarse fiber extracted from the fibrous outer shell of a coconut. Brown coir is harvested from fully ripened coconuts. It is thick, strong and has high abrasion resistance; it is typically used in...
A double-knit fabric in which the rib wales or vertical rows of stitches intermesh alternatively on the face and the back of the fabric. Rib knit fabrics have good elasticity and shape retention,...
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A soft yet firm, sheer fabric of plain weave, Generallymade of combed hard-twisted single yarns, although plyyarns are alsoused.About the samenumber of yarns inwarp as in filling. Has clinging...

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