Black toners containing infrared transmissive and reflecting colorants
US8293443B2 · kind B2 · utility
0Cited by
31References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0602
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner formulation is disclosed comprising a binder and an IR absorbing black pigment at a concentration of 0.25-2.0% by weight, including one or more infrared transmissive pigments, wherein the infrared transmissive pigments are configured to provide a black color. Such toner formulation may provide a response to a toner patch sensor to indicate a mass per unit area of 0.1-1.5 mg/cm2 or a reflectance relative to a substrate to define a reflectance ratio that varies relative to L* values for the toner over the range L*=0-50 or a bulk reflectivity of greater than 6.0% for a portion of the wavelength range of 850-2000 nanometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.