Water-based ink for ink-jet recording, ink cartridge and...

Details Water-based ink for ink-jet recording, ink cartridge and... Water-based ink for ink-jet recording, ink cartridge and...

2008-12-23

2011-11-22

Le, Emily (Department: 1731)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031600, C106S031860

Reexamination Certificate

active

08062412

ABSTRACT:
A water-based ink for ink-jet recording includes a self-dispersing pigment, water, a water-soluble organic solvent, and an acetylene glycol surfactant. An amount of the self-dispersing pigment (solid content) relative to a total amount of the ink is in a range of about 3.5 wt % to about 4.5 wt %. The water-soluble organic solvent includes glycerin and dipropylene glycol propyl ether, an amount of the glycerin relative to a total amount of the ink is in a range of about 15 wt % to about 25 wt %, and an amount of the dipropylene glycol propyl ether relative to a total amount of the ink is in a range of about 2.0 wt % to about 3.0 wt %. An amount of the acetylene glycol surfactant relative to a total amount of the ink is in a range of about 0.1 wt % to about 0.3 wt %.

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