Method for ink jetting opaque ink composition
US10208218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2016 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Feb 26, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of inkjet printing includes ink jetting an aqueous inkjet ink composition to form a white printed image on a substrate. The aqueous inkjet ink composition comprises particles of titanium dioxide that are present in an amount of at least 4 to 15 weight % and the particles have a 95th percentile particle size of less than 200 nm and a 50th percentile particle size of less than 130 nm. The titanium dioxide particles are dispersed within the aqueous inkjet ink composition using a dispersing polymer that is a styrene-(meth)acrylic acid polymer, styrene-maleic anhydride polymer, or styrene-maleic acid polymer and the weight ratio of the titanium dioxide particles to the dispersing polymer is from 19:1 to and including 2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.