Electrocoagulation printing ink

Details Electrocoagulation printing ink Electrocoagulation printing ink

1997-09-02

1999-07-27

Yoon, Tae

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 316, 106 3172, 106 3182, 106 3186, 106 3189, 523161, C09D 1102, C09D 1110

Patent

active

059284170

ABSTRACT:
The shelf-life of an electrocoagulation printing ink consisting essentially of a liquid colloidal dispersion containing an electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte, a pigment and a dispersing agent uniformly dispersing said pigment into the dispersion, is increased by selecting as the dispersing agent an alkali metal salt of a naphthalenesulfonic acid-formaldehyde polycondensate having the general formula: ##STR1## in which R is an alkali metal and n is an integer ranging from about 5 to about 12.

REFERENCES:
patent: 4895629 (1990-01-01), Castegnier
patent: 5690801 (1997-11-01), Castegnier
patent: 5693129 (1997-12-01), Lin

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