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Title:
TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE AND METHOD FOR FIXING TONER IMAGE
Document Type and Number:
Japanese Patent JP3870447
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To obtain an electrophotographic toner excellent in high-speed low- temp. fixability, anti-hot-offsetting property, smearing and aggregation resistances and to provide a heat fixing method.
SOLUTION: This toner consisting of essentially a bonding resin, a colorant and a releasing agent has a temp. at which the modulus (G') of storage elasticity begins to lower in the temp. region of 45-65°C. When the common logarithm of the viscosity of this toner is plotted to temp. and the viscosity at 121°C and that at 118°C are represented by η'121 and η'118, respectively, the value αrepresented by the equation α=(1/3)×(logη'121-logη'118) is -0.065 to -0.035. When the common logarithm of the modulus of storage elasticity of this toner is plotted to temp. and the modulus of storage elasticity at 200°C and that at 197°C are represented by G'200 and G'197, respectively, the value β represented by the equation β=(1/3)×(logG'200-logG'197) is ≥-0.025.


Inventors:
Tsuyoshi Uchida
Kunio Akimoto
Application Number:
JP19213496A
Publication Date:
January 17, 2007
Filing Date:
July 22, 1996
Export Citation:
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Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
G03G9/08; G03G9/087; G03G13/20; G03G15/20; (IPC1-7): G03G9/08; G03G13/20; G03G15/20
Domestic Patent References:
JP3219262A
JP7092737A
JP6273975A
JP6317929A
JP6027725A
JP2256063A
JP3067270A
JP4056869A
JP4068360A
JP5204184A