Ink jet printing paper
US6936317B2 · kind B2 · utility
1Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Ink jet printing paper carries a pigment coating comprising (a) a major proportion of a finely divided precipitated calcium carbonate (PCC) having a surface area of at least 60 m2g−1, preferably 80 to 90 m2g−1 (b) a minor proportion of a gel-type silica and (c) binder. The silica is preferably present in an amount of 15 to 30% by weight of the total dry weight of silica and PCC. The pigment coating is preferably made up as an aqueous composition having a solids content of 25 to 35% and a Brookfield viscosity of 150 to 2000 mPa s and applied by a blade coating technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.