Toners and processes thereof

Details Toners and processes thereof Toners and processes thereof

2006-05-30

2006-05-30

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

C516S077000

Reexamination Certificate

active

07052818

ABSTRACT:
Disclosed is an oil-less toner composition exhibiting good low temperature release and stripping in fixing, enhanced surface gloss of fixed image, and/or OHP transparency. By controlling one or more properties, such as the relative thermal energy input during the EA aggregation/coalescence process, using a wax having a certain dispersion size (D50), molecular weight and/or melting temperature, the toner particle produced thereby can achieve optimal surface wax protrusion with a surface wax content of about 12 to about 25 weight percent. This is based on the total amount of wax in the toner, as determined by x-ray photoelectron spectroscopy (XPS). The contamination of wax on developing rolls, photoreceptor and carriers, which lowers the reliability of the developer, is suppressed with the present exemplary embodiment.

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