Aqueous ink

Abstract

Abstract PURPOSE: To provide an aqueous ink suitable for writing and stamping of which compatibility with a plastic substrate is enhanced and deficiency such as smearing is eliminated by incorporating β-cyclodextrin as a component. CONSTITUTION: About 0.2W15% of (a) β-cyclodextrin being a cyclic oligosaccharide comprising seven D-glucopyranose unit cyclically linked by alpha-1,4 linkage, (b) a coloring agent such as erythrosin, Eosine GH, Phthalocyanine Blue, Rhodamine or carbon black, (c) water and (d) a water-soluble org. solvent for controlling evaporation e.g., ethylene glycol, triethylene glycol or propylene glycol, are compounded to obtain an objective aqueous ink. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Katsumi Hirano

Bibliographic Details