Photosensitive element having an aluminum base and silane intermediate layer

US4935332A · kind A · utility

Assignee

• BASF SE

Inventors

• Harald Lauke · Mannheim, DE
• Wilhelm Weber · Neustadt, DE
• Reinhold J. Leyrer · Schifferstadt, DE
• Bernhard Nick · Ludwigshafen, DE
• Thomas Loerzer · Bischofswerda, DE

Key dates

• Filing date: Jul 10, 1989
• Grant date: Jun 19, 1990
• Expiry date: Jul 10, 2009

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41N3/038
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A sensitized lithographic printing plate is produced from an aluminum base which has been mechanically, chemically and/or electrochemically pretreated and anodically oxidized in a conventional manner and a photosensitive copying layer which is applied to this base, by a process in which a thin layer which imparts hydrophilic properties and consists of a hydrolysis product or condensate of one or more silanes is applied between the base and the copying layer. These lithographic printing plates are particularly useful for offset printing.