Ink jet color printing method
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United States of America Patent
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May 3, 1988
Issued Date -
N/A
app pub date -
Oct 20, 1986
filing date -
Dec 31, 1984
priority date (Note) -
Expired
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Abstract
Color printing characterized by high color density and color contrast is provided by jetting an ink composition composed of an optically clear, phase change base material and a primary subtractive color dye which is soluble in the base material onto the surface of a printing medium to form a multiplicity of closely spaced color dots or spots arranged to define a line or character on the medium. Each dot consists of one or more well defined, optically clear, semitransparent color layers each of which has a different color so that the observed color of each dot is a true subtractive mixture of the colors in the layers. Specific ink compositions are also disclosed.
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