Process for producing toner for developing electrostatic...

G - Physics – 03 – G

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

Patent

CA 2213061

A process for producing a toner for developing an electrostatic latent image comprising the step of mixing (a) (a-1) a solventless colorant-dispersed resin comprising a solventless resin and a colorant and (a-2) a resin emulsion, (b) (b-1) a colored resin emulsion comprising a resin emulsion and a colorant and (b-2) a solventless resin, or (c) (c-1) a solventless resin, (c-2) a colorant, and (c-3) a resin emulsion, and removing water from the mixture (a), (b) or (c) simultaneously with or after the mixing to prepare a solventless colored resin composition.

Procédé pour la fabrication d'un toner servant au développement d'une image latente sur surface électrostatique comportant le mélangeage des substances suivantes : a) 1- une résine à colorant dispersé sans solvant avec un colorant, a) 2- une émulsion de résine; b) 1- une émulsion de résine colorée comportant une émulsion de résine et un colorant, b) 2- une résine sans solvant, ou c) 1- une résine sans solvant, c) 2- un colorant et c) 3- une émulsion de résine, suivi d'une étape d'extraction de l'eau contenue dans les mélanges a, b ou c durant ou après l'opération de mélangeage des substances afin d'obtenir une composition de résine colorée sans solvant.

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