The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
May. 08, 2002
Norbert Lutz, Rückersdorf, DE;
Gerhard Zinner, Pyrbaum, DE;
Matthias Schumacher, Borchen, DE;
Ulrich Knaack, Paderborn, DE;
Dirk Fischer, Paderborn, DE;
Norbert Lutz, Rückersdorf, DE;
Gerhard Zinner, Pyrbaum, DE;
Matthias Schumacher, Borchen, DE;
Ulrich Knaack, Paderborn, DE;
Dirk Fischer, Paderborn, DE;
ORGA Systems GmbH, Paderborn, DE;
Abstract
The invention relates to a process for the production of a multi-layer image, preferably a multi-color image. A transfer film which is applied to a paper ubstrate and which is treated with laser irradiation is used. The transfer film has a laser-sensitive layer and a background layer arranged therebeneath. The laser-sensitive layer comprises laser-sensitive material, for example laser-sensitive pigments or other laser-sensitive coloring agents. The laser-sensitive material in the layer is region-wise bleached by laser irradiation. That results in a so-called laser-induced image component. As it is transparent or partly transparent, the background layer which is arranged therebeneath and which can have a printed image then becomes visible from above in that region. That therefore gives a multi-layer image which is formed by the laser-induced image component and by the background layer jointly.