Method of making toners
AssigneeXerox Corporation
InventorsGrazyna E. Kmiecik-Lawrynowicz, Chieh-Min Cheng, Bernard Grushkin, Karen L. LaMora, Casimir Mytych
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Abstract
Toners are described which include one or more copolymers combined with colorant particles or primary toner particles. Processes for preparing the toners are also disclosed.
Claims20
A process for the preparation of toner comprising:
- (i) polymerizing an aqueous latex emulsion comprising one or more monomers, an optional nonionic surfactant, an optional anionic surfactant, an optional free radical initiator, an optional chain transfer agent and one or more copolymers to form emulsion resin particles having the one or more copolymers dispersed therein;
- (ii) combining the emulsion resin particles with colorant to form statically bound aggregated composite particles;
- (iii) heating the statically bound aggregated composite particles to form toner;
- and
- (iv) optionally isolating the toner.
A process for the preparation of toner comprising:
- (i) polymerizing an aqueous latex emulsion comprising one or more monomers, an optional nonionic surfactant, an optional anionic surfactant, an optional free radical initiator, and an optional chain transfer agent to form emulsion resin particles;
- (ii) combining the emulsion resin particles with one or more copolymers to form aggregated primary toner particles;
- (iii) combining the aggregate primary toner particles with colorant to form statically bound aggregate composite particles,
- (iv) heating the statically bound aggregated composite particles to form toner;
- and
- (v) optionally isolating the toner.
A process for the preparation of toner particles comprising:
- (i) contacting colorant with one or more copolymers to produce colorant particles combined with the one or more copolymers;
- (ii) polymerizing an aqueous latex emulsion comprising one or more monomers, an optional nonionic surfactant, an optional anionic surfactant, an optional free radical initiator, and an optional chain transfer agent to form emulsion resin particles to form emulsion resin particles;
- (iii) combining the emulsion resin particles with the colorant combined with the one or more copolymers to form statically bound aggregated composite particles;
- (iv) heating the statically bound aggregated composite particles to form toner;
- and
- (v) optionally isolating the toner.
Toner comprising colorant combined with one or more copolymers and resin particles.
Toner comprising colorant and resin particles having one or more copolymers bound thereto.
Toner comprising colorant and resin particles having one or more copolymers dispersed therein.
Dependencies are inferred from the claim text.