Toner for developing electrostatic image

Details Toner for developing electrostatic image Toner for developing electrostatic image

1995-12-20

1998-01-13

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

G03G 9097

Patent

active

057077711

ABSTRACT:
A toner for developing an electrostatic image includes: a binder resin, a colorant and a wax. The toner is designed to have (a) a storage modulus at 100.degree. C. (G'.sub.100) of 1.times.10.sup.4 Pa to 5.times.10.sup.4 Pa, and (b) a storage modulus at 60.degree. C. (G'.sub.60) and a storage modulus at 70.degree. C. (G'.sub.70) providing a ratio (G'.sub.60 /G'.sub.70) of at least 30. Because of the rheological properties, the toner shows a good fixability even at a high colorant content and shows an improved fixability immediately after power supply to a fixing device in a cold environment. The binder resin may preferably include a low-modulus component and a high-modulus component. The wax may preferably include a high-melting point wax component and a low-melting point wax component.

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