A process for providing a security paper, in particular a banknote, with a coloured marking, comprising providing a photosensitive preparation on a portion of said document and submitting at least selected areas of said portion to a light beam, wherein said preparation is capable of forming a film on said portion and comprises a substance capable of producing colloidal metal particles under the effect of UV irradiation, and said areas are irradiated by means of an UV-light beam.
Titre
Formation of security paper e.g. banknote with colored marking involves providing photosensitive preparation comprising substance which produces colloidal metal particles under UV irradiation effect on a portion of the document
Date
2003
Editeur
KBA GIORI SA (SKBA) HOFFMAN P (HOFF-Individual) BRET T (BRET-Individual) MOREAU V (MORE-Individual)
Note
Alternative title(s) :
(de) Verfahren zur markierung von sicherheitspapieren
(fr) Procede pour creer des marques sur des papiers de securite
(en) Process for providing marking on security papers
Autres identifiant(s)
EPO Family ID: 33547829
Date de création de la notice
2009-07-20
