A HEAT-SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR

According to the present invention a printing plate precursor which is sensitive to near infrared light ranging from 700 nm to 1500 nm is disclosed. The printing plate precursor comprises an aluminum- silicon alloy support and a heat-sensitive coating, characterized in that the amount of silicon in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ANDRIESSEN, HIERONYMUS, AERTS, TIM
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS LINING MACHINES MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE METALLURGY PERFORMING OPERATIONS PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM PRINTING PRINTING PLATES OR FOILS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES STAMPS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TYPEWRITERS
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Beschreibung
Zusammenfassung:	According to the present invention a printing plate precursor which is sensitive to near infrared light ranging from 700 nm to 1500 nm is disclosed. The printing plate precursor comprises an aluminum- silicon alloy support and a heat-sensitive coating, characterized in that the amount of silicon in said alloy ranges between 1% by weight and 20% by weight and that said support is capable of absorbing infrared light and subsequently converting it into heat at an extent sufficient to induce a lithographic image after exposing and optionally developing said precursor. Cette invention concerne un précurseur pour plaque d'impression sensible à une lumière proche infrarouge comprise entre 700 nm et 1500 nm. Le précurseur pour plaque d'impression comprend un support en alliage aluminium-silicium et un revêtement thermosensible, il se caractérise par une quantité de silicium dans l'alliage comprise entre 1% et 20% en poids, il se caractérise également en ce que le support est capable d'absorber la lumière infrarouge et de la transformer en chaleur suffisamment pour induire une image lithographique après exposition puis éventuel développement dudit précurseur.