Ink process and composition

Details Ink process and composition Ink process and composition

C - Chemistry, Metallurgy

09

D

31/153

C09D 11/02 (2006.01) C09D 11/00 (2006.01) G01D 15/18 (2006.01)

Patent

CA 1140742

KGW(CASE 1267)JWdc INK PROCESS AND COMPOSITION Abstract of the Disclosure - Ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by fluorescent properties in ultraviolet light, incorporating, in solution, a resin component, at least one solvent, proportioned to give the ink properties of heat and steam resistance, said inks are colorless in ordinary light and distinctly fluorescent in ultraviolet light so as to render them particularly suitable as a means for marking various materials whereby marking is normally invisible but easily detectable when subjected to ultraviolet illumination. According to another of its aspects, this invention is a process for information recording comprising producing a fine jet of liquid, directing a jet of colorless liquid onto a recording medium modulating the density of the applied jet by an electric field in accordance with the information to be recorded, thereby recording said information. -i-

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