Method of improving pigment fluorescence

Details Method of improving pigment fluorescence Method of improving pigment fluorescence

C - Chemistry, Metallurgy

09

B

C09B 67/00 (2006.01) C09B 41/00 (2006.01) C09B 67/10 (2006.01)

Patent

CA 2427904

The present invention is directed to a process for the preparation of organic pigments with enhanced fluorescence, which process comprises treating said pigments with a sufactant, and to the fluorescent organic pigments obtained by said process. The pigments according to the present invention can be used in marking applications, wherein durable fluorescence is required.

L'invention concerne un procédé de préparation de pigments organiques à fluorescence accrue, consistant à traiter ces pigments avec un tensioactif. L'invention concerne par ailleurs les pigments organiques fluorescents ainsi obtenus. On peut utiliser les pigments de l'invention dans des applications de marquage nécessitant une fluorescence durable.

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