Aqueous ink, ink jet recording method, ink cartridge,...

Details Aqueous ink, ink jet recording method, ink cartridge,... Aqueous ink, ink jet recording method, ink cartridge,...

2011-01-04

2011-01-04

Lorengo, Jerry (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031600, C106S031890, C106S031590

Reexamination Certificate

active

07862653

ABSTRACT:
Novel conditions in the physical properties of an ink have been found out to provide an aqueous ink, which can give a high image density and achieve excellent fixing ability. The aqueous ink comprises at least water, a water-soluble organic solvent, a surfactant and a coloring material, wherein the dynamic surface tension at a lifetime of 50 milliseconds as determined by a maximum bubble pressure method is 49 mN/m or more, and the dynamic surface tension at a lifetime of 5,000 milliseconds as determined by the maximum bubble pressure method is 38 mN/m or less.

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