Title:
PRODUCTION OF ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
Document Type and Number:
Japanese Patent JP3240336
Kind Code:
B2
Abstract:
PURPOSE: To provide the process for stable production of the electrostatic charge image developing toner having uniform compsn. of toner particles and good fixability without degradation in image densities.
CONSTITUTION: The toner compsn. consisting of at least a resin, magnetic material and release agent is kneaded to satisfy the conditions 0.85T/Tf≤1.38, 1.65T/Tr≤2.75, 1.05T/Tsp≤1.28 where the kneading temp. of the kneading stage is defined as T, the softening point of the toner as Tsp, the barrel temp. of a fore stage 7 of a kneading machine as Tf and the barrel temp. of a post stage 8 as Tr in the process for production of the electrostatic charge image developing toner obtd. by mixing the toner compsn. mentioned above, then subjecting the molten mixture to melt kneading, pulverizing and classifying.
Inventors:
Akira Akaiwa
Seiichi Sugiyama
Seiichi Sugiyama
Application Number:
JP5082593A
Publication Date:
December 17, 2001
Filing Date:
March 11, 1993
Export Citation:
Assignee:
Konica Corporation
International Classes:
G03G9/083; G03G9/08; G03G9/087; (IPC1-7): G03G9/087; G03G9/08; G03G9/083
Domestic Patent References:
| JP4328580A | ||||
| JP386224A | ||||
| JP623740A | ||||
| JP6118713A | ||||
| JP6194878A | ||||
| JP52288A | ||||
| JP6150624A |