06235099 is referenced by 7 patents and cites 9 patents.

A water-dispersed inkjet recording liquid excellent in water resistance and transparency and also excellent in the property of ejection from a nozzle, containing, as a colorant, a water-based dispersion of an organic pigment (A) which is at least one member selected from the group consisting of a quinacridone pigment, a benzimidazolone pigment, an insoluble azo pigment, a fuzed azo pigment, a quinophthalone pigment, a naphthol pigment, a perylene pigment and an isoindolinone pigment and has an average particle diameter of 10 to 150 nm (measured by laser scattering), the water-based dispersion of the organic pigment (A) being obtained by mechanically kneading a mixture containing at least three components of the organic pigment (A), a water-soluble inorganic salt (B) in an amount by weight at least three times as large as the amount of the organic pigment (A) and a water-soluble solvent (C) to finely mill the organic pigment (A), and then removing the water-soluble inorganic salt (B) and the water-soluble solvent (C) by washing the kneaded mixture with water, and a process for the production thereof.

Title
Inkjet recording liquid and process for the production thereof
Application Number
9/527702
Publication Number
6235099 (B1)
Application Date
July 28, 1997
Publication Date
May 22, 2001
Inventor
Yasuharu Iida
Tokyo
US
Seiji Sawada
Tokyo
US
Sunao Satake
Tokyo
US
Ichiro Toyoda
Tokyo
US
Hisashi Uraki
Tokyo
US
Tsutomu Fujigamori
Tokyo
US
Seiji Aida
Tokyo
US
Agent
Wenderoth Lind & Ponack L
US
Assignee
Toyo Ink Manufacturing
US
IPC
C09D 11/02
View Original Source