Free radical UV curable inkjet ink sets and inkjet printing methods
US11466168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free radical UV curable inkjet ink set includes a free radical UV curable primer containing: one or more photoinitiators; a mixture of at least two monomers according to Formula (I): wherein n represents an integer 0 or 1, k represents an integer selected from the range of 0 to 3, and R represents hydrogen or phenyl; 0.0 to 4.0 wt % of a polyfunctional monomer; 0.0 to 2.0 wt % of an organosilane coupling agent; and 0.0 to 10.0 wt % of a N-vinyllactam monomer; and one or more free radical UV curable inkjet inks containing: a colour pigment; one or more photoinitiators; and at least 50.0 wt % of one or more monoacrylate monomers; wherein the mixture of at least two monomers according to Formula (I) includes 3.0 to 50.0 wt % of a first monomer having n=1 and R representing phenyl and 35.0 to 90.0 wt % of a second monomer having n=0 and R representing phenyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.