Patent · US Active

On-press processing of a UV or violet-sensitized lithographic printing plate

US11465404B2 · kind B2 · utility

0Cited by

11References

14Claims

0Family size

Assignee

Agfa Offset BV · BE

Inventors

Peter Hendrikx · Düsseldorf, DE
Thomas Billiet · Mortsel, BE
Johan Loccufier · Zwijnaarde, BE
Katleen Himschoot · Mortsel, BE
Sue Wilkinson · Vancouver, CA

Key dates

Filing date	Dec 9, 2019
Grant date	Oct 11, 2022
Priority date	—
Expiry date	Dec 9, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41C2210/04
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method of lithographic plate making is disclosed wherein a plate precursor is exposed to laser radiation in the wavelength range from 350 to 450 nm, said plate precursor comprising a hydrophilic support and a photopolymerizable or photocrosslinkable image recording layer, and then processed on-press by supplying fountain and ink. The exposure produces a visible image having a 1976 CIELAB color distance ΔE between exposed and non-exposed areas of at least 2.5.

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