Patent · US Active

Positive-working lithographic printing plate precursors and use

US8936899B2 · kind B2 · utility

1Cited by

4References

8Claims

0Family size

Assignee

EASTMAN KODAK COMPANY · US

Inventors

Gerhard Hauck · Badenhausen, DE
Dietmar Frank · Northeim, DE
Celin Savariar-Hauck · Badenhausen, DE

Key dates

Filing date	Sep 4, 2012
Grant date	Jan 20, 2015
Priority date	—
Expiry date	Sep 4, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41C2210/14
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A thermally-sensitive, positive-working lithographic printing plate precursor can be used to prepare lithographic printing plates using high pH, silicate-free processing solutions. The precursor has a grained an anodized aluminum-containing substrate including a poly(vinyl phosphonic acid) interlayer. A first ink receptive layer, and optionally a second ink receptive layer, is disposed directly on the poly(vinyl phosphonic acid) interlayer. This first ink receptive layer comprises an aromatic acid dye that comprises at least two aromatic groups in an amount of least 0.5 weight %. In addition, the precursor comprises an infrared radiation absorber in one of the layers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.