Printing ink and vehicle therefor

Details Printing ink and vehicle therefor Printing ink and vehicle therefor

1981-01-19

1982-04-27

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08K 501

Patent

active

043270115

ABSTRACT:
A heat-setting printing ink capable of setting to a stable condition at unusually low temperatures, resulting in time and energy savings for web offset lithographic printing, while effecting superior image integrity or printing quality. The novel lithographic printing ink employs a unique styrene-acrylic copolymer composition, which is dissolved in a low solvency aliphatic hydrocarbon, this being the basic vehicle for the ink. This vehicle exhibits not only a more rapid rate of film formation during drying, but at room temperatures the rate is less than conventional vehicles so as to exhibit good press stability in the roller train. The ink achieves these results without sacrificing other features characteristics of known high quality web offset inks. The ink is formed by blending this special vehicle with other ink composition ingredients including pigments, optionally a conventional let down varnish, a minor amount of additives such as waxes for surface characteristics, and solvent for flow characteristics.

REFERENCES:
patent: 3262919 (1966-07-01), Bolgiano
patent: 3413250 (1968-11-01), Varron et al.
patent: 3489712 (1970-01-01), Leveskis

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