Multilayer body with a laser-sensitive layer

Details Multilayer body with a laser-sensitive layer Multilayer body with a laser-sensitive layer

2007-05-29

2007-05-29

Walke, Amanda (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Imagewise heating, element or image receiving layers...

C430S270100, C430S944000, C430S945000, C430S962000

Reexamination Certificate

active

10513840

ABSTRACT:
The present invention relates to a process for increasing the level of safeguard in respect of forgery of paper documents. For that purpose, applied to the paper document is a transfer film or laminating film having a laser-sensitive layer. This multi-layer body is then treated with laser radiation. In that case, a laser-induced marking is produced in the laser-sensitive layer, for example, by laser-induced bleaching, laser-induced color change or laser-induced blackening. Respective individualization of the document can be effected by way of that laser-induced marking.

REFERENCES:
patent: 3897964 (1975-08-01), Oka et al.
patent: 4523777 (1985-06-01), Holbein et al.
patent: 5075195 (1991-12-01), Bäbler et al.
patent: 5234890 (1993-08-01), Burberry et al.
patent: 5240900 (1993-08-01), Burberry
patent: 5289547 (1994-02-01), Ligas et al.
patent: 6143451 (2000-11-01), Blanchet-Fincher
patent: 6154432 (2000-11-01), Faruqi et al.
patent: 6617094 (2003-09-01), Ozawa et al.
patent: 6747930 (2004-06-01), Weldon et al.
patent: 6827283 (2004-12-01), Kappe et al.
patent: 2002/0022112 (2002-02-01), Hoeppner et al.
patent: 0 738 609 (1996-10-01), None
patent: 0 637 514 (1997-10-01), None
patent: 1 393 445 (1975-05-01), None
patent: WO 98/19868 (1998-05-01), None

Affiliated with

Also associated with

Rating

Multilayer body with a laser-sensitive layer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayer body with a laser-sensitive layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayer body with a laser-sensitive layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3785213