A FOIL AS A COVERING FOR AN IMPRESSION CYLINDER IN ROTARY OFFSET PERFECTING PRESSES

The invention relates to a foil as a cover for an impression cylinder in rotary offset perfecting presses, which consists of a rigid support layer resistant to chemicals and wear and with good ink transfer behavior, said foil having a calotte-structured surface of statistically uniformly distributed...

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description The invention relates to a foil as a cover for an impression cylinder in rotary offset perfecting presses, which consists of a rigid support layer resistant to chemicals and wear and with good ink transfer behavior, said foil having a calotte-structured surface of statistically uniformly distributed convex and concave structural elements and a chromium layer which forms the sheet-guiding outer cylindrical surface of the impression cylinder and has a microroughness-reducing effect, and a sheet is supported by the poles of the convex structural elements thereof. These convex structural elements have an oval shape, with the radius of curvature from pole to passage into the concave structural elements becoming gradually larger.
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language eng ; fre
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subjects LINING MACHINES
MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE
PERFORMING OPERATIONS
PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
PRINTING
PRINTING MACHINES OR PRESSES
PRINTING PLATES OR FOILS
STAMPS
TRANSPORTING
TYPEWRITERS
title A FOIL AS A COVERING FOR AN IMPRESSION CYLINDER IN ROTARY OFFSET PERFECTING PRESSES
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