Aqueous ink, ink jet recording method, ink tank recording...

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

2005-12-20

2005-12-20

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031270

Reexamination Certificate

active

06976755

ABSTRACT:
An aqueous ink comprises a phthalocyanine dye represented by a general formula (I) and an aqueous medium, wherein the phthalocyanine dye does not contain a component of x+y=2 but at least contains components of x+y=3 and x+y=4, the content of the component of x+y=4 is larger than the content of the component of x+y=3, and the aqueous medium contains an amine compound having a vapor pressure of 0.01 mmHg or higher at 20-25° C.:wherein CuPc represents a copper phthalocyanine residue; x represents 1, 2, 3 or 4 and y represent 0, 1, 2 or 3.

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