ROTARY MULTICOLOR PRINTING MACHINE FOR SIMULTANEOUS RECTO-VERSO PRINTING

摘要

ROTARY MULTICOLOR PRINTING MACHINE FOR SIMULTANEOUSRECTO-VERSO PRINTINGABSTRACTThe printing machine has two interacting blanketcylinders (1,2) which are each inked by several offsetplate cylinders (5,12) and between which the paper (P) tobe printed on both sides runs through. One of the blanketcylinders (2) is also in contact with a plate cylinder (8)carrying a collect printing plate which is inked in amulticolor manner by a further blanket cylinder (9). Thisblanket cylinder (9) receives the inks from several appro-priately inked selective color inking cylinders (10).Also arranged between the two blanket cylinders (2,9),which are in contact with the plate cylinder (8) carryingthe collect printing plate, is an adjustable and convert-ible plate cylinder (16) which, in a first working position,carries an offset plate and rests against the blanketcylinder (2) inked by the offset plate cylinders (12),whilst in a second working position it carries a selectivecolor inking plate and rests against the blanket cylinder(9) inked by the selective color inking cylinders (10).Thus, it is possible to produce on one side of the papera multicolor pattern which is made by means of two differ-ent printing processes and in which either the number ofcolors used in collect printing or the number of colorsused in offset printing is selectively increased by onecolor.