Additive attachment on toner particles by plasma
US-9223237-B2 · Dec 29, 2015 · US
Toner production method
US2018292764A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018292764-A1 |
| Application number | US-201815945145-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 4, 2018 |
| Priority date | Apr 6, 2017 |
| Publication date | Oct 11, 2018 |
| Grant date | — |
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- Title
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Abstract
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The present invention is to provide a toner production method configured to prevent scale formation, be resistant to pipe clogging, and realize stable and efficient toner production, even in the case of long-term continuous production. Disclosed is a toner production method comprising: a dispersing step for obtaining a colorant dispersion by, in a stirring tank, (a) dispersing or dissolving a colorant and a charge control agent in a polymerizable monomer, or (b) dispersing or dissolving a binder resin, a colorant and a charge control agent in an organic solvent, and a droplets forming step by suspending the colorant dispersion in an aqueous dispersion medium, wherein, in the dispersing step, the binder resin, colorant or charge control agent is added to the polymerizable monomer or organic solvent in the stirring tank, from a hopper, through a pipe heated by a heating device.
First claim
Opening claim text (preview).
1 . A toner production method comprising: a dispersing step for obtaining a colorant dispersion by, in a stirring tank, (a) dispersing or dissolving a colorant and a charge control agent in a polymerizable monomer, or (b) dispersing or dissolving a binder resin, a colorant and a charge control agent in an organic solvent, and a droplets forming step by suspending the colorant dispersion in an aqueous dispersion medium, wherein, in the dispersing step, the binder resin, colorant or charge control agent is added to the polymerizable monomer or organic solvent in the stirring tank, from a hopper disposed in an upper part of the stirring tank, through a pipe heated by a heating device. 2 . The toner production method according to claim 1 , wherein, in the dispersing step, a release agent and/or a retention aid is further added to the polymerizable monomer or organic solvent in the stirring tank, from the hopper disposed in the upper part of the stirring tank, through the pipe heated by the heating device. 3 . The toner production method according to claim 1 , wherein a heating temperature of the pipe is higher than a condensation temperature at which the polymerizable monomer or organic solvent is vaporized. 4 . The toner production method according to claim 1 , wherein the heating device is a self-temperature-regulating electric heater that is able to control power output depending on temperature change.
Assignees
Inventors
Classifications
- G03G9/0806Primary
whereby chemical synthesis of at least one of the toner components takes place · CPC title
Phthalocyanine dyes · CPC title
Polymers of esters · CPC title
Crosslinked polymers · CPC title
Pretreatment of components · CPC title
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- What does patent US2018292764A1 cover?
- The present invention is to provide a toner production method configured to prevent scale formation, be resistant to pipe clogging, and realize stable and efficient toner production, even in the case of long-term continuous production. Disclosed is a toner production method comprising: a dispersing step for obtaining a colorant dispersion by, in a stirring tank, (a) dispersing or dissolving a c…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification G03G9/0806. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Oct 11 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).