Toner for developing electrostatic image, image forming method a

Details Toner for developing electrostatic image, image forming method a Toner for developing electrostatic image, image forming method a

1996-11-15

1997-12-09

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

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

4301066, 430110, 430111, 430126, 399265, G03G 1322, G03G 9097

Patent

active

056959028

ABSTRACT:
A toner for developing an electrostatic image is formed as a mixture of toner particles containing at least a binder resin and a colorant, and inorganic fine powder. The inorganic fine powder includes: (A) inorganic fine powder (A) treated at least with silicone oil, and (B) inorganic fine powder (B) comprising a composite metal oxide including at least Si as a constituent element and having a weight-average particle size of 0.3-5 .mu.m. Because of the inclusion of the two types of inorganic fine powders (A) and (B), the toner is stably provided with a high flowability and a high triboelectric charge under various environmental conditions including low-humidity to high-humidity conditions. The toner is suitably used in an image forming system including a contact-charging means, a contact-transfer means and a film (or surf)-fixing system.

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Patent Abstracts of Japan, vol. 18, No. 405 (P-1778) Jul. 1994 for JPP 61-18692, Apr. 1994.
Patent Abstracts of Japan, vol. II, No. 256 (P-607) Aug. 1987 for JPP 62-61065, Mar. 1987.

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