Graphic medium and method of making same
US8916243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2011 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M2205/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A graphic medium and a method of making same employs a paper core having a normalized opacity within a range of about 0.15 to about 0.4 percent/grams per square meter. The graphic medium includes a first material layer on a first side of the paper core and a second material layer on one or both of the first side between the paper core and the first material layer and a second, opposite side of the paper core. The graphic medium has a translucent opacity between about 40% and about 90%. The method includes mechanically refining a mixture of wood fibers until a paper substrate is formed having the normalized opacity. The paper substrate is calendered using a paper making machine and the first and second material layers are applied to form the graphic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.