Printing ink
AssigneeAmerican Newspaper Publishers Association
InventorJohn T. Moynihan
Life of this patent
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Abstract
A non-petroleum base newspaper printing ink comprising a blend of Gilsonite (uintaite) flakes and tall oil fatty acids, together with carbon black pigment. The proportions of the Gilsonite and the tall oil fatty acids 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.
Claims7
A printing ink consisting essentially of:
- a. Carbon black pigment 16.5%
- b. Gilsonite 25.1%, and
- c. Tall oil fatty acid 58.4%.
A printing ink consisting essentially of:
- a. Carbon black pigment 18.1%
- b. Gilsonite 16.4%, and
- c. Tall oil fatty acid 65.5%.
A printing ink composition consisting essentially of:
- a. Carbon black pigment 17%
- b. Gilsonite 18.6%, and
- c. Tall oil fatty acid 64.4%.
An offset printing ink consisting essentially of:
- a. Carbon black pigment 21.57%
- b. Gilsonite 23.53%, and
- c. FA-1 Tall oil fatty acid 54.90%.
A printing ink composition consisting essentially of:
- a. Carbon black pigment 12.3%
- b. Gilsonite 17.6%, and
- c. Tall oil fatty acid 70.1%.
Dependencies are inferred from the claim text.