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US 3,961,965 AGranted
Dyestuff preparations and printing inks
AssigneeSublistatic Holding S.A.
InventorGuenther Zwahlen
Life of this patent
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Abstract
The invention relates to a dyestuff preparation containing 1. at least one dyestuff and/or fluorescent brightening agent which sublimes at 100.degree. to 300.degree.C and 2. at least one resin soluble in organic solvents.
Claims10
An intaglio printing ink which contains:
- 1. the dyestuff of formula ##SPC12## ##SPC13## ##SPC14##
- 2. an aqueous-organic or substantially pure organic solvent or mixture thereof;
- and
- 3. at least one resinous cellulose derivative which dissolves readily in (2), and which serves as binder or thickener for the printing ink.
1 more element
Dependencies are inferred from the claim text.