ROLL AND ROLL CLEANING METHOD

摘要

A roll is in contact with the surface of a traveling sheet while rotating, and is provided with a rod-shaped shaft and a cylindrical cylinder part. The shaft is disposed to pass through the centers of both end faces in the longitudinal direction of the cylinder part, the cylinder part is rotatable about the shaft, and a plurality of symbolic shapes to be transferred to the sheet are formed on the surface of the cylinder part that is in contact with a portion that does not serve as a product on the sheet, the plurality of symbolic shapes being different from each other and having any shape of a character, a numeral, a figure, and a symbol.