Title:
BASE PARTICLES OF TONER, TONER AND DEVELOPER
Document Type and Number:
Japanese Patent JP3550965
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To ensure satisfactory clearer color reproducibility and color forming property at the time of forming a full-color image by incorporating a treated pigment specified in the constitution and a bonding resin.
SOLUTION: The base particles of a toner for developing an electrostatic charge image contains a treated pigment and a bonding resin. The treated pigment is obtd. by heating and mixing an aq. paste of an org. pigment, a resin which is solid at ordinary temp. and rosin as a dispersing aid and then removing the water. The aq. paste has about 20-50% solid content and is obtd. by adding water, etc., to a formed pigment and purifying the pigment by the repetition of washing and filtration. The org. pigment may be any water- insoluble org. pigment. A colorless transparent resin is suitable for use as the resin which is solid at ordinary temp., that is, and usable for flashing in consideration of the transparency of an image.
Inventors:
Masaaki Kaneko
Application Number:
JP22764197A
Publication Date:
August 04, 2004
Filing Date:
August 25, 1997
Export Citation:
Assignee:
Toyo Ink Mfg. Co., Ltd.
International Classes:
G03G9/087; G03G9/08; G03G9/09; G03G9/10; G03G9/107; (IPC1-7): G03G9/09; G03G9/08; G03G9/087; G03G9/10
Domestic Patent References:
| JP9202861A | ||||
| JP9160299A | ||||
| JP9137031A | ||||
| JP9031205A |