Photothermographisches Material und Verfahren, um damit lithographische Platten herzustellen

PROBLEM TO BE SOLVED: To provide a storage material to produce a lithographic printing plate of high sensitivity by a dry process in a simple method. SOLUTION: This photothermographic material contains an element which can be addressed by light and can be thermally developed on a support. This eleme...

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Bibliographic Details
Main Authors LEENDERS, LUC, VAN ROMPUY, LUDO
Format Patent
LanguageGerman
Published 14.10.2004
Edition7
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
COLOUR PRINTING
ELECTROGRAPHY
HOLOGRAPHY
LINING MACHINES
MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE
MATERIALS THEREFOR
ORIGINALS THEREFOR
PERFORMING OPERATIONS
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
PRINTING
PRINTING PLATES OR FOILS
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PROBLEM TO BE SOLVED: To provide a storage material to produce a lithographic printing plate of high sensitivity by a dry process in a simple method. SOLUTION: This photothermographic material contains an element which can be addressed by light and can be thermally developed on a support. This element contains an org. heavy metal salt which is substantially non- photosensitive, a photosensitive silver halide which is catalytically associated with the substantially non-photosensitive org. heavy metal salt, and an agent reducing the substantially non-photosensitive org. heavy metal salt, and a binder. Further, the photothermographic material has an outermost layer having two phases on the same surface of the support where the thermally developable element exists. At least one phase of the two phases is a dispersion phase of thermoplastic particles. The two phases show different affinities from each other for one printing liquid selected from a group of ink and adhesive liquids to the ink.
Bibliography:Application Number: DE1998620545T