B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 3/14 (2006.01) B32B 27/16 (2006.01) B32B 27/18 (2006.01) B41M 5/26 (2006.01) B41M 5/28 (2006.01) B41M 5/40 (2006.01) B41M 5/46 (2006.01) B41M 7/00 (2006.01) B43K 5/00 (2006.01) B43M 11/08 (2006.01) C07C 65/38 (2006.01) C07C 69/76 (2006.01) C08B 37/00 (2006.01) C08B 37/16 (2006.01) C09B 67/42 (2006.01) C09D 5/00 (2006.01) C09D 11/00 (2006.01) C09D 11/16 (2006.01) G01J 1/50 (2006.01) G03G 9/08 (2006.01) G03G 9/087 (2006.01) G03G 9/09 (2006.01) G03G 9/097 (2006.01) G09B 3/04 (2006.01) G09C 5/00 (2006.01)
Patent
CA 2219463
Applications of photoerasable colorant composition include photoerasable price markings for pricing goods, documents such as gaming tickets for securely communicating concealed information, photoerasable paint for temporary markings on terrain and structures such as signs, roadways, trees, and buildings, marking instruments such as pens, and wick or felt markers, ultraviolet light exposure indicators, and dry printing. The photoerasable or mutable colorant composition comprises a mutable colorant and an ultraviolet radiation transorber which, upon irradiation with ultraviolet radiation, interacts with the colorant to irreversibly mutate the colorant and thereby render the colorant substantially colorless. The mutable colorant composition may also include a molecular includant.
L'invention concerne différentes utilisations d'une composition de colorant photoeffaçable, à savoir par exemple: marquage de prix photoeffaçable pour des marchandises, impression de document tels que des billets de jeux afin de garantir la transmission sûre d'une information cachée, fabrication de peinture photoeffaçable pour la signalisation temporaire sur un terrain ou sur des supports tels que les panneaux, la chaussée des routes, des arbres et les bâtiments, la fabrication d'instruments de marquage tels que les stylos et les marqueurs à mèches ou à pointes de feutre, la fabrication d'indicateur d'exposition à la lumière ultraviolette et l'impression à sec. La composition de colorant photoeffaçable ou mutable comprend un colorant mutable et un matériau de transorption (absorption/transformation) de rayonnement ultraviolet qui, sous exposition au rayonnement ultraviolet, absorbe et transforme le colorant pour entraîner une mutation irréversible et, de ce fait, rendre ledit colorant sensiblement sans couleur. La composition de colorant mutable peut aussi comprendre une molécule-cage.
Lindsay Jeffrey Dean
Macdonald John Gavin
Nohr Ronald Sinclair
Borden Ladner Gervais Llp
Kimberly-Clark Worldwide Inc.
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