Protective jacket for a disk-shaped recording medium

US4688129A · kind A · utility

Assignee

• BASF SE

Inventors

• Dietrich Gruehn · Appenweier, DE
• Hubert Fehrenbach · Kehl, DE
• Norbert Holl · Germering, DE

Key dates

• Filing date: May 30, 1986
• Grant date: Aug 18, 1987
• Expiry date: May 30, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B23/505
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A protective jacket, in particular for recording media, preferably magnetic films, is provided with at least one stiffened region in the immediate vicinity of the read/write area, thus permitting more thorough cleaning of the recording medium and smoother running of the latter. Stiffened region(s) can be produced economically by printing on strips of ink.