Process for producing a ring-shaped one-color or multi-color ribbon and a ribbon produced in accordance with this process

US4018955A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Guenter Klauke · Munich, DE
• Anton Wimmer · Hersbruck, DE

Key dates

• Filing date: Jul 29, 1975
• Grant date: Apr 19, 1977
• Expiry date: Jul 29, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24901
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A continuous or ring-shaped printing ribbon is constructed by overlapping the ends of a length of ribbon made of thermoplastic synthetic material and welding the overlapped ends together along a grid work of fine weld lines, thereby providing a weld joint comprising a punctiform arrangement of ink-bearing cells to effect an undisturbed emission of ink across the joint during a printing operation.