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.

Date of Patent:
Mar. 19, 2013

Filed:

Aug. 28, 2009
Applicants:

Norio Aoshima, Shizuoka, JP;

Kazuo Maemoto, Shizuoka, JP;

Inventors:

Norio Aoshima, Shizuoka, JP;

Kazuo Maemoto, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/027 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A negative-working lithographic printing plate precursor is disclosed that can be developed on the press without going through a development processing step, and a method of lithographic printing is also disclosed that uses this negative-working lithographic printing plate precursor. Also disclosed are a negative-working lithographic printing plate precursor that can be developed by a water-soluble resin-containing aqueous solution and a method of lithographic printing that uses this negative-working lithographic printing plate precursor. A negative-working lithographic printing plate precursor is provided that exhibits an excellent fine line reproducibility in nonimage areas even when printing is performed using ultraviolet-curing ink (UV ink). Also provided is a negative-working lithographic printing plate precursor that exhibits an excellent combination of fine line reproducibility and printing durability and that resists the production of scum during on-press development. The negative-working lithographic printing plate precursor has a support and has thereon a photopolymerizable layer that contains a polymer compound that has the urea bond in the main chain and a hydrophilic group and a carboxylic acid content less than 0.05 meq/g. The method of lithographic printing uses this negative-working lithographic printing plate precursor.


Find Patent Forward Citations

Loading…