Jet ink process and ink composition fluorescent in ultraviolet l

Details Jet ink process and ink composition fluorescent in ultraviolet l Jet ink process and ink composition fluorescent in ultraviolet l

1978-06-26

1981-01-06

Seccuro, Carman J.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

106 21, 106 28, 106 29, 106 30, 427288, B05D 104

Patent

active

042436940

ABSTRACT:
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.

REFERENCES:
patent: 2389371 (1945-11-01), Kroeger
patent: 2421291 (1947-05-01), Schmutzler
patent: 3465350 (1969-09-01), Keur et al.
patent: 3671451 (1972-06-01), Butterfield
patent: 3705043 (1972-12-01), Zabiak
patent: 3715219 (1973-02-01), Kurz et al.
patent: 4006158 (1977-02-01), Fleck et al.

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