Intaglio printing inks
US8636307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to printing inks for the intaglio printing process, also referred to as engraved steel die printing process. In particular, oxidatively curing inks comprising a combination of fusible wax and a UV curing binder component are disclosed. These inks can be printed on a standard printing press, and, through a short UV irradiation after printing, allow to significantly reduce or eliminate the undesired set-off which can occur after printing and stacking the printed sheets. Using the inks of the present invention results in less set-off contaminated printed sheets, allowing for a higher pile-stacking of the printed good, for the use of increased engraving depths, of a more challenging intaglio design, and for the printing on less porous substrates, while enabling the printing on a standard printing press, and offering the possibility of using a lower printing plate temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.