The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2018
Filed:
Sep. 29, 2014
Agfa Graphics NV, Mortsel, BE;
Peter Hendrikx, Mortsel, BE;
Paul Callant, Mortsel, BE;
Marin Steenackers, Mortsel, BE;
Sam Verbrugghe, Mortsel, BE;
AGFA NV, Mortsel, BE;
Abstract
A method of making a lithographic printing plate includes the steps of a) image-wise exposing a lithographic printing plate precursor including a hydrophilic support and a coating containing a colorant precursor to form a lithographic image consisting of printing areas and non-printing areas, b) developing the plate precursor to remove the coating in the non-printing areas from the support, and c) drying the plate precursor, and d) subjecting the plate precursor to heat or radiation to induce a colour change of the coating in the printing areas, wherein before step b) the coating in the non-printing areas and the support are characterised by a CIE 1976 colour difference ΔEwhich is 5.0 or less, and after step d) the CIE 1976 colour difference ΔEbetween the coating in the printing areas and the non-printing areas is more than 6.8.