Lipophobicating solution for electrophotographic plates for offs

Details Lipophobicating solution for electrophotographic plates for offs Lipophobicating solution for electrophotographic plates for offs

1988-11-08

1990-09-04

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

106465, C09K 300, B41M 5025

Patent

active

049541730

ABSTRACT:
A lipophobicating solution for an electrophotographic plate for offset printing is disclosed which comprises (a) phytic acid, (b) a diamine having the general formula NH.sub.2 --R--NH.sub.2 wherein R is an alkyl or aryl group having from 2 to 8 carbon atoms, and (c) water. The pH of the solution is in the range from about 3.0 to about 6.0. This lipophobicating solution does not cause scumming and allows an electrophotographic process to produce clean printed sheets.

REFERENCES:
patent: 2815360 (1957-12-01), Baldwin
patent: 3016398 (1962-01-01), Larson
patent: 3592640 (1971-07-01), Van Engeland
patent: 4579591 (1986-04-01), Suzuki et al.
patent: 4734132 (1988-03-01), Yoshida

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