Method for preventing penetration of damping solution between supporting base and plate
AssigneeMitsubishi Paper Mills Limited
InventorsToshiro Kondo, Eiji Kanada, Kyonosuke Yamamoto
Life of this patent
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Abstract
A method for lithographic printing of paginal publications which comprises applying onto a flexible supporting base two or more lithographic printing plates arranged in the rotational direction of a master cylinder and to form such a structure with front and rear edge portions of the adjacent lithographic printing plates as to prevent penetration of damping solution between the supporting base and the lithographic printing plates, the portion of said structure receiving substantially no ink. This supporting base is mounted on a master cylinder of a printing machine and printing is carried out.
Claims18
A method for lithographic printing which comprises arranging and applying two or more lithographic printing plates, adjacent to one another and in the rotational direction of a master cylinder of a printing machine, onto a flexible supporting resin base,;
- said resin base having a groove or grooves in which said adjacent printing plates are connected with one another to form a connected structure;
- said connected structure being formed by connecting with a hydrophilic thin film sheet a bottom and a rear edge portion of a first adjacent printing plate with a top and a front edge portion of a second adjacent printing plate;
- additional adjacent printing plates can be added to said connected structure with a hydrophilic thin film sheet in the following manner, connecting a bottom and a rear edge portion of said second adjacent printing plate with a top and a front edge portion of a third adjacent printing plate;
- said connected structure preventing penetration of a damping solution and a printing ink between said resin base and said adjacent lithographic printing plates, said front and said rear edge portions of said printing plates receiving substantially no ink.
A method for lithographic printing which comprises arranging and applying two or more lithographic printing plates, adjacent to one another and in the rotational direction of a master cylinder of a printing machine, onto a flexible supporting resin base and carrying out printing;
- said resin base having a groove or grooves in which said adjacent printing plates are attached to one another to form a connected structure;
- said connected structure being formed by attaching a bottom and a rear edge portion of a first adjacent printing plate to a top and a front edge portion of a second adjacent printing plate, said bottom and said rear edge portion of said first printing plate being superimposed on said top and said front edge portion of said second printing plate;
- additional adjacent printing plates can be added to said connected structure in the following manner, attaching a bottom and a rear edge portion of said second adjacent printing plate to a top and a front edge portion of a third adjacent printing plate, said bottom and said rear edge portion of said second printing plate being superposed on a top and a front edge portion of a third adjacent printing plate;
- said connected structure preventing penetration of a damping solution and a printing ink between said resin base and said adjacent lithographic printing plates.
Dependencies are inferred from the claim text.