Coating pigment for ink-jet printing
US5997625A · kind A · utility
22Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | May 1, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A coating pigment composition comprising a hydrous clay, a caustic leached calcined clay, and a porous mineral provides a coating having excellent balance of color intensity and color definition characteristics when printed on by multicolored inks. The pigments of this invention offer a low cost alternative to conventional silica-based coatings in addition to affording other desirable benefits such as improved rheology, less required coat weights, and higher coating solids compared to conventional silica coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.