Calender is the term used to describe several steel rolls, which are usually heated and between which materials are passed and thus “calendered”, i.e. smoothed, rolled, thinned etc.
In thermosublimation printing, the print is transferred from a transfer paper to the material to be printed on a calender by passing both of them through the calender in superimposed layers. Through heat and pressure, the colour pigments on the paper explode and the colour bonds permanently with the fabric.
Calendering is also called “satin-finishing” in paper manufacturing. Paper is mechanically smoothed between the calender rolls to produce coated or uncoated paper. Calendering takes place under very high pressure and temperature.