Direct process for the production of printing inks
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United States of America Patent
Stats
-
May 12, 1987
Grant Date -
N/A
app pub date -
Jan 27, 1983
filing date -
Jan 27, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A direct process for the production of a printing ink base consists essentially of the steps of (1) reacting the starting ingredients for a pigment in an agitated vessel to obtain a product that contains pigment in mother liquor, (2) placing the product in a high horsepower, high shear mixer to transfer the pigment from the aqueous phase to a non-aqueous phase, and (3) while the material is still in the mixer, adding the necessary ingredients to make a printing ink base that can further be formulated into a printing ink.
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