Pigment treatment in paper coating compositions for improving ink-jet printing performance
US6797347B2 · kind B2 · utility
11Cited by
18References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5236
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Paper coating compositions are provided for use with thermal ink-jet color printers, such as Hewlett-Packard Company's DeskJet® printer. The organic pigment present in the paper is modified by the addition of a metal-charge complex which causes anionic colorants in the ink to be precipitated on the surface of the paper. Printing any of the ink-jet ink sets onto the specially-prepared paper improves resolution, color retention, waterfastness, smear-fastness, image retention and image density while decreasing image bleed in ink-jet printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.