Printing paper
US10906344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Mar 12, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/385
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing paper having a base paper and an outermost coating layer is provided, and satisfies at least one of the following characteristics (I), (II) and (III): (I) when an aqueous solution having a surface tension of 20 mN/m is dropped on the side having the outermost coating layer of the printing paper, a contact angle between the droplet and the outermost coating layer is 40° or more and 65° or less; (II) for the side having the outermost coating layer of the printing paper, a transfer amount of an aqueous solution having a surface tension of 20 mN/m at a contact time of 1 second as determined by the Bristow method is 5.0 ml/m2 or more and 12.0 ml/m2 or less; and (III) on the surface of the outermost coating layer of the printing paper, a maximum peak value of specular reflection light quantity of a point image is 2,000 or more and 30,000 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.