Abstract: The invention relates to a method for producing laser-engravable flexographic printing elements on flexible metallic supports comprising a cross-linked elastomeric layer and an absorber for laser radiation. The invention also relates to a method for producing flexographic printing plates by means of laser engraving using flexographic printing elements of the aforementioned type, and to flexographic printing plates produced using such a method.
Type:
Grant
Filed:
August 16, 2001
Date of Patent:
July 5, 2005
Assignee:
BASF Drucksysteme
Inventors:
Alfred Leinenbach, Margit Hiller, Uwe Stebani, Thomas Telser
Abstract: Flexographic printing plates are produced by means of direct laser engraving by a process in which the starting material used is a flexographic printing element which has a relief-forming layer comprising a combination of a styrene/butadiene block copolymer and 20-40% by weight of a plasticizer. Flexographic printing plates obtainable by this process are used for flexographic printing with water-based or alcohol-based printing inks.
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