Method for producing toner for developing electrostatic images

Details Method for producing toner for developing electrostatic images Method for producing toner for developing electrostatic images

1995-07-06

1996-12-31

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

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

430137, G03G 9097

Patent

active

055893104

ABSTRACT:
Disclosed is a method for producing a toner for developing electrostatic images, which comprises the steps of kneading a mixture of raw materials comprising at least a resin and a colorant, cooling the kneaded mixture, pulverizing the cooled mixture, classifying the pulverized mixture, and feeding a fine powder separated by the classification step to a melt of the mixture of raw materials in the middle of the kneading step. The toner has improved fixability, durability and storage stability, with which stable and high-quality images are obtained even by continuous copying operation.

REFERENCES:
patent: 5272034 (1993-12-01), Kawano et al.
patent: 5290650 (1994-03-01), Shintaku et al.
patent: 5401602 (1995-03-01), Mahabadi et al.
patent: 5447275 (1995-09-01), Goka et al.

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