E.i. Dupont De Nemours and Company

Allan Banke

Dietmar Dudek

Mark A Hackler

Andreas Koch

Robert A McMillen

Helmut Luetke

Soren Michael Juul Jorgensen

The invention pertains to an apparatus and a process for forming a printing form from a photosensitive element having a cylindrical support, and in particular, to an apparatus and a process for thermally treating the photosensitive element to form a relief pattern and particularly to form a cylindrically-shaped flexographic printing form. The apparatus and process includes supporting the cylindrical support to accommodate thermal treating of photosensitive elements with various sizes of the cylindrical support.

Apparatus and process for forming a printing form having a cylindrical support

This invention relates to a method for thermally developing a photosensitive element to form a relief pattern. The method includes heating a composition layer of the element to cause a portion of the layer to liquefy and providing a development medium under tension to the element to absorb the liquefied composition. The development medium includes an absorbent material and a support, the combination of which minimizes stretch and distortion of the absorbent material and can impede the migration of the liquefied composition through the absorbent material.

Method for thermal development of a photosensitive element using a development medium having a support

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Nyborg, Denmark

Allan Banke