Method of applying a durable process mark to a product, more particularly glass

US8308890B2 · kind B2 · utility

Assignee

• tesa SE · DE

Inventors

• Arne Koops · Mölln, DE
• Sven Reiter · Hamburg, DE
• Bernd Bunde · Hamburg, DE
• Olaf Postel · Hamburg, DE

Key dates

• Filing date: May 17, 2010
• Grant date: Nov 13, 2012
• Expiry date: May 17, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31645
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method of applying a durable process mark to a glass article using a laser. A transfer sheet is applied to the glass substrate, the transfer sheet includes a carrier layer with a first adhesive layer, adhered partially to a bottom side of the carrier layer. On the face of the carrier layer there are a first and a second pigment layer. The transfer sheet is lased, forming a durable process mark in the glass article.