Patent ID: 11932768
Assignee: SAKATA INX CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 3:
4. A method for producing an active energy ray-curable ink composition containing a compound having one or more ethylenically unsaturated bonds, a specific resin, a specific liquid ingredient, and a photopolymerization initiator, the method comprising:
a step of dissolving the specific resin in the heated specific liquid ingredient to prepare a varnish, wherein the specific resin is at least one selected from the group consisting of rosin-modified phenol resins, rosin-modified maleic acid resins, rosin-modified alkyd resins, gilsonite resins, and asphalt resins, and the specific liquid ingredient is at least one selected from the group consisting of cashew nut shell oil and a modified product of cashew nut shell oil having no ethylenically unsaturated bonds and a solubility parameter (sp) value of 9.0 (cal/cm3)1/2 to less than 11.0 (cal/cm3)1/2 as measured by turbidimetric titration.