Thermal treatment of imagable coatings

Imageable articles comprising positive working polymeric coatings on substrates are given a heat treatment as part of their manufacture, notably at a moderate temperature for an extended period. This heat treatment improves the development characteristics of the coatings in use. It has been found th...

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Bibliographische Detailangaben
Hauptverfasser:	PARSONS, GARETH RHODRI, LOTT, MARTYN, SHOESMITH, COLIN, RICHES, JOHN DAVID
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CINEMATOGRAPHY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY LINING MACHINES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MATERIALS THEREFOR ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PRINTED CIRCUITS PRINTING PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Imageable articles comprising positive working polymeric coatings on substrates are given a heat treatment as part of their manufacture, notably at a moderate temperature for an extended period. This heat treatment improves the development characteristics of the coatings in use. It has been found that by carrying out the heat treatment on articles wrapped in a water-impermeable material or in a humidity-enhanced oven, development characteristics may be further improved, especially adjacent to the edges of articles. The imageable articles include precursors for lithographic printing plates and for printed circuits.