Quantum dot-based luminescent marking material

Details Quantum dot-based luminescent marking material Quantum dot-based luminescent marking material

C - Chemistry, Metallurgy

09

D

C09D 11/02 (2006.01) B41J 2/01 (2006.01) C09D 5/22 (2006.01) G03G 9/08 (2006.01) G06K 1/12 (2006.01) G06K 7/10 (2006.01)

Patent

CA 2638514

A luminescent marking material includes a luminescent material, which includes quantum dots, and a vehicle for delivering the luminescent material to an object. A method of embedding information on a substrate includes assigning information to luminescent material, which includes quantum dots, forming luminescent marking material by combining luminescent material and marking material, and creating an image on a substrate with the luminescent marking material. A system that embeds and recovers information on a substrate includes an image forming device containing such a luminescent marking material for forming an image on the a substrate and a document reading device including a radiation emitting unit, which emits radiation that causes the luminescent marking material to illuminate, and a reader that detects the data on the substrate while the luminescent marking material is illuminated.

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