Liquid electrophotographic ink concentrates and methods for preparing the same
US8563210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2013 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Apr 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid electrophotographic ink concentrate includes non-volatile solids present in an amount ranging from about 20% to about 70% of the ink concentrate, the non-volatile solids including encapsulated pigment particles having a particle size ranging from about 500 nm to about 20 μm, and a viscosity modifier. The ink concentrate includes a balance of a liquid composition, the liquid composition including a carrier. The concentrate is dispersible in an ink vehicle to form a print-ready liquid electrophotographic ink having the non-volatile solids present in an amount ranging from about 0.5% to 5% of the print-ready liquid electrophotographic ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.