Photosensitive recording materials for the production of abrasion-resistant and scratch-resistant gravure printing plates comprising particles

Claim 1

A photosensitive recording material for the production of a gravure printing plate, which comprises a 30-500 μm thick layer (L) which is applied to a dimensionally stable base and contains a photopolymerizable and/or photocrosslinkable material which is soluble or dispersible in a developer and becomes insoluble or non-dispersible therein when exposed to actinic light, wherein the photopolymerizable and/or photocrosslinkable material contains, at least in a surface zone having a thickness of from 1 to 50 μm, measured from the surface of the layer (L), which subsequently constitutes the surface of the printing plate, finely divided, abrasive particles in an amount of from 2 to 50% by weight, based on the photopolymerizable and/or photocrosslinkable material containing these particles, the mean particle size being from 0.1 to 6 μm, not more than 5% of the abrasive particles have a maximum particle size greater than 10 μm, the particles have a hardness of >4.0 on Mohs' hardness scale, the surface of the layer (L) has a peak-to-valley height of <2 μm, and the components of the photopolymerizable and/or photocrosslinkable material of the layer (L) are chosen so that this layer, after exposure, development and drying, has a Vickers hardness, measured under load, of not less than 10N/mm 2 , at least to the depth of the wells which take up the ink.