Aqueous inkjet ink composition, printed matter, and inkjet printing method
US12410332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous inkjet ink composition containing a pigment, an alkali-soluble resin, a surfactant, a water-soluble solvent, colloidal silica, and water, in which the surfactant includes a surfactant having an HLB value equal to or greater than 3 and less than 10 and a surfactant having an HLB value of 10-20 (inclusive), the water-soluble solvent has a boiling point of 170-250° C. (inclusive) at 1 atm, and the percentage of the colloidal silica in the aqueous inkjet ink composition is 0.05-2 mass % (inclusive). The aqueous inkjet ink composition has excellent storage stability, mechanical stability, discharge stability, coating film drying properties, and cissing resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.