Letterpress printing ink

Details Letterpress printing ink Letterpress printing ink

1983-11-30

1985-11-19

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 31, 106273R, C09D 1106

Patent

active

045540195

ABSTRACT:
A non-petroleum base newspaper letterpress printing ink comprising a blend of Gilsonite (uintaite) flakes and tall oil fatty acid together with carbon black pigment. The proportions of the Gilsonite and the tall oil fatty acid may be varied, as viscosity requirements change due to differences in press speeds, newsprint characteristics, and the like. The ink thus has readily adjustable viscosity, together with an enhanced flow and penetration characteristics, while being extremely economical to manufacture.

REFERENCES:
patent: 2416676 (1947-03-01), Bernardi et al.
patent: 4107327 (1978-08-01), Tilson et al.
patent: 4197221 (1980-04-01), Eisenmenger et al.
patent: 4383860 (1983-05-01), Uhlemayr et al.
patent: 4419132 (1983-12-01), Moynihan
patent: 4419132 (1983-12-01), Moynihan

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