Multilayer laser transfer film for permanently inscribing parts

US7371443B2 · kind B2 · utility

Assignee

• tesa AG · DE

Inventors

• Arne Koops · Mölln, DE
• Sven Reiter · Hamburg, DE

Key dates

• Filing date: Feb 22, 2003
• Grant date: May 13, 2008
• Expiry date: Apr 30, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A multilayer laser transfer film for permanently inscribing parts made from at least one backing layer, where on at least part of the underside of the backing layer there is a first adhesion layer, characterized in that, on the backing-layer side of the laser transfer film, this being the location of the first adhesion layer, there are at least two pigment layers, preferably a first pigment layer applied to at least part of the material and comprising at least one glass flux pigment, and a second pigment layer applied to at least part of the material and comprising at least one laser-sensitive pigment.