Patent · US Expired

Method for making positive working printing plates from a heat mode sensitive imaging element

US6153353A · kind A · utility

35Cited by

6References

10Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Marc Van Damme · Heverlee, BE
Joan Vermeersch · Deinze, BE
Eric Verschueren · Merksplas, BE
Jorg Jung · Flörsheim, DE
Helmuth Haberhauer · Taunusstein, DE

Key dates

Filing date	Mar 10, 1999
Grant date	Nov 28, 2000
Priority date	—
Expiry date	Mar 10, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41C2210/262
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is unpenetrable for or insoluble in an alkaline developer containing SiO.sub.2 in the form of silicates; characterized in that said first layer and said top layer comprise a compound capable of converting IR-light into heat.

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