Matted, radiation-sensitive recording material and printing plate

US5576137A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Werner Frass · Wiesbaden, DE
• Otfried Gaschler · Wiesbaden, DE
• Klaus Joerg · Schifferstadt, DE
• Guenter Hultzsch · Wiesbaden, DE
• Andreas Elsaesser · Idstein, DE

Key dates

• Filing date: Sep 14, 1994
• Grant date: Nov 19, 1996
• Expiry date: Sep 14, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/151
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to a non-continuous matte layer that can be used with a recording material having a substrate and a radiation-sensitive layer which contains a 1,2-naphthoquinone-2-diazide and an organic, polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions. This matte layer comprises 100 to 10,000 particles per square centimeter which have a mean diameter of less than 40 .mu.m and a maximum diameter of less than 80 .mu.m and a mean height of 2 to 6 .mu.m and a maximum height of 10 .mu.m, and contains a resin which has up to 0.80 mmol of acid groups and/or salt groups per gram. The matte layer is obtained by spraying on and drying an aqueous, anionically or anionically/nonionically stabilized dispersion of the resin.