Active-energy-ray curable offset printing ink composition, and method for manufacturing printed matter and method for enhancing gloss of printed matter using the same
US11365324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is an active energy ray-curable ink composition for offset printing capable of achieving superior gloss of printed matter. The ink composition comprises a compound having at least one ethylenically unsaturated bond and a photopolymerization initiator, wherein a group of materials having no ethylenically unsaturated bonds, having a specified SP value, and exhibiting a liquid state at room temperature is added to the ink composition up to the upper limit depending on the SP value. Examples of such a group of materials include castor oil, hardened castor oil, polymerized castor oil, coconut oil, palm kernel oil, epoxidized fats and oils, alkylphenols having C15-C18 alkyl groups, cashew nut shell liquid, polymers of cashew nut shell, and modified derivatives of cashew nut shell liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.