Hybrid toner and method of preparing the same
US7932008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | May 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0619
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A hybrid toner and a method of preparing the toner are provided. The hybrid toner is of a core-shell type having improved storage characteristics and a toner blocking phenomenon. The toner prevents image contamination caused by dispersion of waxes or colorants onto the surface of the outer layer of toner particles are prevented. The hybrid toner includes particles including: a core of about 100 parts by weight of a polyester-based resin, about 1-20 parts by weight of a wax, about 0.1-10 parts by weight of a colorant and about 0.1-10 parts by weight of a charge control agent; and about 5-500 parts by weight of a vinyl-based resin, about 0.1-10 parts by weight of silica, about 0.1-5 parts by weight of a metal oxide and about 0.1-10 parts by weight of polymer beads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.