Surface treatment of print media
US8846138B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2010 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Mar 10, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for surface treatment of a paper substrate and a paper product produced therefrom are disclosed herein. The surface treatment method includes applying a salt-containing solution to at least one surface of a paper substrate by aerosol spraying in a separate step, whereby the salt distribution through the thickness of the treated paper substrate is non-uniform with the highest concentration of salt being present in the outermost portion of the paper substrate. The salt-containing solution contains at least one water-soluble metal salt and is void of any optical brightening agent (OBA).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.