Planographic printing

Details Planographic printing Planographic printing

1999-05-26

2000-05-09

Funk, Stephen R.

Printing

Planographic

Lithographic plate making, and processes of making or using...

101465, 101478, 101487, B41C 110

Patent

active

060588411

ABSTRACT:
A formulation comprising a heat sensitive cross-linkable ink and carbon black is coated over substantially the entirety of an ink-repellent/ink-releasing surface of a printing cylinder of a printing press by heating the formulation and/or the outer surface of the printing cylinder so that the formulation adheres to the cylinder to provide a continuous coating thereon. The coated printing cylinder is then allowed to cool to ambient temperature whereafter it can be imaged using a digitally controlled laser. The imaged printing cylinder may be developed during press start up by application of waterless ink over the cylindter surface in order to remove the non-imaged areas comprising non-cross-linked ink. After completion of printing, the printing cylinder can be cleaned by using an appropriate solvent to solubilize the cross-linked ink in the imaged areas and subsequently re-used.

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patent: 5440987 (1995-08-01), Williams et al.
patent: 5713287 (1998-02-01), Gelbart
patent: 5768995 (1998-06-01), Miyaguchi et al.
patent: 5819661 (1998-10-01), Lewis et al.

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