Lithographic fountain concentrates containing a desensitizing ma

Details Lithographic fountain concentrates containing a desensitizing ma Lithographic fountain concentrates containing a desensitizing ma

1979-01-15

1981-01-27

Welsh, Maurice J.

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

C09D 1102

Patent

active

042473284

ABSTRACT:
A concentrate for dilution with water to obtain a fountain solution for lithographic printing comprises a lithographic desensitizing material dissolved in a vehicle liquid comprising an organic solvent liquid optionally in admixture with water. Preferred desensitizing materials are organo substituted ammonium salts of desensitizing acids and a preferred organic solvent liquid is isopropyl alcohol. The fountain solution obtained on dilution of the concentrate may be used with printing machines having integrated damping/inking equipment.

REFERENCES:
patent: 3354824 (1967-11-01), Griffith et al.
patent: 3829319 (1974-08-01), Suzuki et al.
patent: 3877372 (1975-04-01), Leeds
patent: 4150996 (1979-04-01), Draker et al.
Weast (ed), Handbook of Chemistry & Physics, The Chemical Rubber Co., Cleveland, 1969, pp. 245 & 503.

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