Kodak Polychrome Graphics, Gmbh

Kodak Polcyhrome Graphics LLC

Michael S Yates

Gerhard Hauck

Kevin Barry Ray

Celin M Savariar-Hauck

Hans-Joachim Timpe

Christopher David McCullough

Mark John Spowage

Harjit Singh Bhambra

Peter Andrew Bennett

Colin J Griffiths

Carolyn O'Sullivan

A heat-sensitive composition, for example a coating on a lithographic printing plate, comprises a carboxylic acid derivative of a cellulosic polymer. The composition may contain a radiation absorbing compound and suitable electromagnetic radiation, preferably infra-red radiation, may be used to heat the composition imagewise. The presence of the cellulosic polymer enhances resistance to certain organic liquids.

Article having imagable coatings

An imagable composition, for example a coating on a lithographic printing plate, comprises a carboxylic acid derivative of a cellulosic polymer and a diazide moiety, and may be imaged in various ways, including by ultra-violet radiation, by infra-red radiation and by heat. The presence of the cellulosic polymer can act to enhance resistance to certain organic liquids and/or to increase operating speed.

Imaging articles

A planographic printing member comprising a substrate, an oleophilic layer, an infra-red sensitive/ablatable layer, and a hydrophilic layer. The hydrophilic layer is derived from a silicate solution, optionally containing particulate materials such as alumina and/or titania. The printing member may be exposed to radiation from a laser which ablates the infra-red sensitive/ablatable layer to reveal areas of the oleophilic layer. An exposed printing member may be used in wet lithographic printing.

Planographic printing member and process for its manufacture

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Dewsbury, United Kingdom

Michael S Yates