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:
Jan. 03, 2012
Filed:
Feb. 21, 2007
Johan Loccufier, Zwijnaarde, BE;
Stefaan Lingier, Assenede, BE;
Frank Vangaever, Sint Michiels Brugge, BE;
Mark Lens, Mortsel, BE;
Marc Van Damme, Bonheiden, BE;
Johan Loccufier, Zwijnaarde, BE;
Stefaan Lingier, Assenede, BE;
Frank Vangaever, Sint Michiels Brugge, BE;
Mark Lens, Mortsel, BE;
Marc Van Damme, Bonheiden, BE;
Agfa Graphics NV, Mortsel, BE;
Abstract
A method for making a lithographic printing plate includes the steps of providing a heat-sensitive lithographic printing plate precursor including on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a heat-sensitive coating; image-wise exposing the precursor with IR-radiation or heat; and developing the image-wise exposed precursor with an alkaline developing solution, wherein an anti-sludge agent is present in the precursor or in the developing solution or in the precursor and the developing solution, and wherein the anti-sludge agent is a-membered heteroaromatic compound, including —NH— group wherein the hydrogen is capable of being deprotonated in the alkaline developing solution, selected from the group consisting of an optionally substituted benztriazole,-triazole, tetrazole, or indazole compound. According to the above method, the formation of sludge is inhibited or reduced.