Toners for developing electrostatic image

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

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430107, 430111, 430137, G03G 9087

Patent

active

055915566

ABSTRACT:
A toner for developing an electrostatic image comprises primary colored resin particles having a mean particle size of 0.6 to 10 microns which have been agglomerated to form secondary particles having a particle size of 1.2 to 20 microns. The primary colored resin particles are formed from fine elementary particles comprised of one or more polymers and a colorant. Thus, the toner can be economically prepared, is excellent in resolution, does not cause much fogging or scattering, and is excellent in fixability and image density.

REFERENCES:
patent: 4794065 (1988-12-01), Hedvall et al.
patent: 4950573 (1990-08-01), Yamaguchi et al.
patent: 4996127 (1991-02-01), Hasegawa et al.
patent: 5225304 (1993-07-01), Kabashima et al.

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