06378999 is referenced by 17 patents and cites 7 patents.

In an aqueous ink jet recording liquid including at least water, a water-soluble organic solvent and a water-insoluble coloring material, (1) the absolute value of the zeta potential is 20 mV or more, (2) the conductivity is from 0.05 to 0.75 S/m, (3) the number average particle size of dispersed particles is from 15 to 200 nm, and (4) the number of particles having a particle size of 0.5 &mgr;m or more present in one liter is 2.5×10

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or less. Due to the aforementioned, dispersion stability of the coloring material can be maintained in the ink jet recording liquid in which the water-insoluble coloring material is dispersed, and the aqueous ink jet recording liquid is provided, which is excellent regarding stability over long periods of time, causes no ink flow route clogging and prevents kogation in printing, provides a recorded material having excellent rub resistance, printing quality, optical density, water resistance and lightfastness, and can prevent uneven density.

Title
Aqueous ink jet recording liquid and ink jet recording method
Application Number
9/115767
Publication Number
6378999 (B1)
Application Date
July 15, 1998
Publication Date
April 30, 2002
Inventor
Kunichi Yamashita
Minami-Ashigara
US
Ken Hashimoto
Minami-Ashigara
US
Toshitake Yui
Minami-Ashigara
US
Kyoko Horinouchi
Minami-Ashigara
US
Atsushi Suzuki
Minami-Ashigara
US
Nobuyuki Ichizawa
Minami-Ashigara
US
Takatsugu Doi
Minami-Ashigara
US
Agent
Oliff & Berridge
US
Assignee
Fuji Xerox
US
IPC
G01D 11/00
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