Plastic film for printing by dye diffusion thermal transfer printing

US9446619B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Heinz Pudleiner · Krefeld, DE
• Klaus Meyer · Dormagen, DE
• Georgios Tziovaras · Neuss, DE
• Mehmet-Cengiz Yesildag · Leverkusen, DE
• Chung Leung Wong · Kowloon, CN

Key dates

• Filing date: Jan 16, 2013
• Grant date: Sep 20, 2016
• Expiry date: Feb 9, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/10
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a special layer construction and a special film of plastic for the production of such a layer construction which is suitable for printing by means of dye diffusion thermal transfer printing, a process for the production thereof and a security and/or valuable document comprising such a layer construction.