Foiling involving electrostatic inks
US11207876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2017 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jul 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In an aspect, there is provided a method of foil printing that may comprise providing a substrate having a surface comprising a first area and a second area, wherein the first area has printed thereon a first electrostatic ink composition comprising a first thermoplastic resin and substantially lacking a pigment and the second area has printed thereon a second electrostatic ink composition comprising a second thermoplastic resin and a pigment; applying a liquid solvent composition to the first electrostatic ink composition on the first area and the second electrostatic ink composition on the second area, to swell the first and second thermoplastic resins; and contacting a foiling material with the first electrostatic ink composition on the first area, such that the foiling material selectively adheres to the first area on the surface of the substrate. In another aspect, an electrostatic and foil printing system for performing the method is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.