E.i. Dupont De Nemours and Company

Ib Vestergaard

Dietmar Dudek

Carl Bernard Arnold

Andreas Koch

Robert A McMillen

Helmut Luetke

Soeren Joergensen

This invention provides an apparatus for treating and a process for positioning a cylindrically-shaped element. The apparatus includes means for supporting the element adapted to contact a first part of an interior surface of the element, the supporting means having an axial length; and means for moving the element along the axial length of the supporting means.

Apparatus and process for positioning a cylindrically-shaped printing element

This invention provides an apparatus and process for forming a printing form from a photosensitive element having an exterior surface and a composition layer capable of being partially liquefied. The apparatus includes a displaceable heater for heating the composition layer, means for removing at least a portion of the composition layer from the element, and means for displacing the displaceable heater to a predetermined distance from the exterior surface. Positioning the displaceable heater at the predetermined distance assures reproducible removal of the liquefied composition from the various types of photosensitive elements that can be thermally treated in the apparatus, resulting in the printing forms having improved relief surface uniformity.

Process and apparatus having an adjustable heater

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Tommerup, Denmark

Ib Vestergaard