Basf Aktiengesellschaft

Helmut Bach

Thomas Telser

Horst Koch

Karl-Rudolf Kurtz

Heinz-Ulrich Werther

Gernot Dietz

Klaus-Peter Jaeckel

In a novel, improved process for the production of photopolymeric flexographic relief printing plates from photosensitive recording elements which contain

Production of photopolymeric flexographic relief printing plates

In a novel process for the production of a flexographic relief printing plate from a photosensitive recording element which contains

The present invention relates to an improved process for preparing a photopolymerized flexographic relief printing plate or a photoresist from a photosensitive element comprising a photopolymerizable layer consisting essentially of

Preparation of relief printing plates

In a process for preparing a photopolymer printing plate, relief plate or photoresist from a photosensitive recording element containing

Multilayer, sheet-like, photosensitive recording material

In a photosensitive recording material comprising

A printing cylinder or a sleeve is coated with a continuous photosensitive recording layer by applying a first jointless stratum of a photosensitive recording layer to the printing cylinder or the sleeve, and uniformly preexposing this first stratum to actinic light and thereafter applying one or more further jointless strata of the photosensitive recording layer to this preexposed first stratum.

Coating plate cylinders or sleeves with a continuous photosensitive

Relief plates which are produced by imagewise photopolymerization of layers which contain, as binders, block copolymers of conjugated dienes and vinylaromatics are aftertreated with an aqueous solution of a mixture of bromates, bromides and acids by a process in which amidosulfonic acid and/or aliphatic di-, tri- and/or tetracarboxylic acids are used as the acids.

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Mutterstadt, Germany

Helmut Bach