Sulfonated polyester toner

G - Physics – 03 – G

Patent

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Details

G03G 9/08 (2006.01) G03G 9/087 (2006.01)

Patent

CA 2560604

A toner of a sulfonated polyester resin and at least one colorant is made to contain from about 0.01% by weight to about 3% by weight of dry toner in total of lithium, sodium, zinc and calcium. The sulfonated polyester resin may be an alkali metal sulfonated polyester resin, wherein the alkali metal may be sodium and/or lithium. The toner may be formed in an emulsion aggregation process in which an alkali (II) metal salt such as a zinc salt and/or a calcium salt is used as an aggregating agent.

Divulgation d'un toner constitué de résine de polyester sulfonée et d'au moins un colorant et préparé de façon à contenir d'environ 0,01 % à environ 3 % en poids de toner sec au total de lithium, de sodium, de zinc et de calcium. La résine de polyester sulfonée peut être une résine de polyester sulfonée de métal alcalin dans laquelle le métal alcalin peut être le sodium et/ou le lithium. Le toner peut être formé grâce à un procédé d'agrégation par émulsion dans lequel un sel de métal alcalin (II), tel qu'un sel de zinc et/ou un sel de calcium, est utilisé comme agent d'agrégation.

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