Multilayer recording element suitable for the production of flexographic printing plates by digital information transfer

US6037102A · kind A · utility

Assignee

• Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

• Thomas Loerzer · Bischofswerda, DE
• Hartmut Sandig · Bischofswerda, DE
• Friedrich Goffing · Schifferstadt, DE
• Alfred Leinenbach · Ludwigshafen, DE
• Hans-Jurgen Nisslmuller · Ludwigshafen, DE

Key dates

• Filing date: Sep 26, 1996
• Grant date: Mar 14, 2000
• Expiry date: Sep 26, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/146
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A multilayer recording element is suitable for the production of flexographic printing plates by digital information transfer and has, arranged one on top of the other on a dimensionally stable substrate, a layer (A) crosslinkable by actinic radiation, a layer (B) sensitive to IR radiation and, if required, a peelable cover sheet, the layer (A) crosslinkable by actinic radiation being capable of being washed out by means of a developer after imagewise exposure and consisting essentially of a mixture of at least one elastomeric binder, ethylenically unsaturated copolymerizable organic compounds, a photoinitiator and, if required, further assistants, and the layer (B) sensitive to IR radiation being a layer which is soluble or dispersible in the developer and contains, in a film-forming binder having elastomeric character, at least one finely divided substance which has a high absorbance in the wavelength range from 750 to 20,000 nm.