METHOD AND MACHINE FOR DECORATING 2-PIECE CANS

摘要

A METHOD OF DECORATING 2-PIECE CANS COMPRISING THE STEPS OF UTILISING A PRINTING PLATE (122) IN TRANSFERRING INK TO CYLINDRICAL MAIN BODIES OF THE RESPECTIVE CANS (102) AND STRUCTURING HALF-TONE DOTS ON THE PRINTING PLATE (122) SUCH THAT FOR AT LEAST A PORTION OF A TONAL RANGE IN THE DECORATION A DOT SIZE IS KEPT CONSTANT WHILE A NUMBER OF DOTS PER UNIT AREA IS VARIED TO ACHIEVE DIFFERENT TONAL VALUES.