Laminated packaging material for liquid food products, a method for making the same, a method for printing on the same and a package made from the same
US12371248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2019 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Apr 29, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2207/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminated packaging material for liquid food products comprising, a core layer of paper or paperboard or other cellulose-based material, a laminate portion being arranged on a first side of the core layer, a dark colored flexographic ink composition printed onto the free surface of the laminate portion, the dark colored ink composition comprises color bases mixed at a ratio such that a total energy absorption by the dark colored flexographic ink composition, when provided on the laminated packaging material, is below 80%, such as below 70% in an emission spectra from a tungsten light source in the region 250-2500 nm at a temperature of 3000 K, the dark colored flexographic ink composition has a color space lightness value L*≤25, and a color space difference equal to or lower than 6, with respect to a specified black reference composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.