Japanese Patent JPH0226583

B2

To permit, in addition to selectively raised letter printing or direct lithographic printing on a single plate cylinder (2), additionally flexo printing, the damping system (4) utilized for direct lithographic printing is filled with flexo printing ink rather than with damping liquid, and the direction of rotation of the plate cylinder, and an associated impression cylinder, together with direction of passage of a printed web or sheet (28) is reversed so that flexo printing ink is applied by the damper, positioned in advance of the printing or impression line (29) to a flexo printing plate on the plate cylinder (2) whereas, for direct lithographic printing, damping liquid is first applied to the plate cylinder for subsequent application of ink by an inker (8) in engagement with the plate cylinder which is removable from engagement when used in flexo printing. The roller brush (20) is positioned between the damping system (4) and the inker (3), engaged with the flexo printing plate for flexo printing, but out of contact with the plate cylinder for direct lithographic printing. For raised letter printing, the damper application roller (12) is disconnected from contact with the plate cylinder, and the roller brush (20) operating in the differential speed with respect to the plate cylinder, is used to clean the raised portions of the printing plate thereon. The system permits extension of existing selective DiLitho or raised letter printing also to flexo printing.

HERUMAN FUITSUSHAA

JP6411082A

June 11, 1990

April 19, 1982

Click for automatic bibliography generation  

EMU AA ENU ROORANTO DORUTSUKUMASHIINEN AG

B41F5/04; B41F5/24; B41F7/00; B41F7/28; B41F11/00; B41F31/06; B41F35/02

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