Sulfoarylated nigrosine dye and use in jet-printing inks

Details Sulfoarylated nigrosine dye and use in jet-printing inks Sulfoarylated nigrosine dye and use in jet-printing inks

1979-11-07

1981-08-18

Coughlan, Jr., Paul M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

106 22, C09B 5700

Patent

active

042847745

ABSTRACT:
Nigrosine base is aryl sulfonated to produce a dye useful in jet-printing inks.

REFERENCES:
patent: 1878531 (1932-09-01), Neelmeier et al.
patent: 2990405 (1961-06-01), Pepper et al.
patent: 3705043 (1972-12-01), Zabiak

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