Less abrasive pigment or printing ink, and method of reducing ab

Details Less abrasive pigment or printing ink, and method of reducing ab Less abrasive pigment or printing ink, and method of reducing ab

1981-11-27

1984-07-31

Kight, III, John

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106288B, 106308B, 106308Q, C09D 1102

Patent

active

044628323

ABSTRACT:
The abrasiveness of a pigment or printing ink is reduced by incorporation of one or more finely divided substances which are insoluble in printing inks and have a Mohs hardness of from 4.5 to 8, suitable compounds being iron powder, compounds of iron, zirconium, silicon and magnesium, aluminum silicates, oxides of manganese, tin and cerium, or mixtures of these. The printing inks obtained cause substantially less, or virtually no, abrasion of gravure printing cylinders.

REFERENCES:
patent: 1906962 (1933-05-01), Heckel
patent: 2111981 (1935-09-01), Liebetruth
patent: 2139068 (1938-12-01), Bourdon
patent: 2767289 (1956-10-01), Robinson
patent: 2876119 (1959-03-01), Dithmar et al.
patent: 3582380 (1971-06-01), Hamilton
patent: 3615749 (1971-10-01), Cramer et al.
patent: 3616145 (1971-10-01), Clifton
patent: 3623908 (1971-11-01), Hermann et al.

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