Water-based black recording ink, and ink-jet recording process m

Details Water-based black recording ink, and ink-jet recording process m Water-based black recording ink, and ink-jet recording process m

1996-09-05

1998-07-28

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3157, C09D 1102

Patent

active

057857440

ABSTRACT:
A water-based black recording ink comprises an aqueous medium and a colorant dissolved or dispersed therein, where the colorant comprises a first colorant, having a transmission color having L* of 4 or below and C*ab of 25 or below in the L*a*b* color system, and a second colorant, and a closed angle between the hue angle of the first colorant and that of the second colorant on the a*-b* plane in the L*a*b* color system is 90.degree. or greater.

REFERENCES:
patent: 4765838 (1988-08-01), Ohata et al.
patent: 5016028 (1991-05-01), Temple
patent: 5084099 (1992-01-01), Jaeger et al.
patent: 5100469 (1992-03-01), Pontes et al.

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