Toner
US9040216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a toner satisfying low-temperature fixing performance and long-term storage stability of fixed images. Further, provided is a toner capable of obtaining toner images excellent in long-term storage stability irrespective of use environments even in the case where images are formed by a high-speed fixing system having low internal pressure of a fixing nip of a fixing device and a high printing speed. The toner includes toner particles containing a binder resin having a resin A and B, and a coloring agent, in which the resin A includes a resin including a moiety capable of forming a crystalline structure; the resin B includes a resin free of a moiety capable of forming a crystalline structure; and ΔHhigh and ΔHlow satisfy the expressions:2≦ΔHhigh≦453[%]≦{(ΔHlow−ΔHhigh)/ΔHlow}×100≦70[%]where ΔHhigh and ΔHlow represent a heat of melting derived from the binder resin measured at a temperature increase speed of 100° C./min and 10° C./min, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.