Calender Spot - Календарное место

Категория: не задано

A paper defect characterized by shiny, transparent spots, generated during the calendering of a paper web. Calender spots are caused by a fragment of paper stuck to the roller of a calender and pressed deeply into the paper web on each revolution of the roller. (See also Calender Cut, Calender-Blackened Spots/Streaks, Blister Cut, Fiber Cut, and Hair Cut.)