Process for inkjet paper and paper produced thereby
US8454797B1 · kind B1 · utility
1Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2012 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5218
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.