Patent ID: 10407582

Abstract:
An ink composition includes (component A) a polymer that has a group containing a silsesquioxane structure and has a weight average molecular weight of 3,000 or more, (component B) a monofunctional polymerizable compound, and (component C) a polymerization initiator; or an ink composition includes (component A′) a compound that does not have an ethylenically unsaturated double bond but has a silsesquioxane structure, and has a molecular weight of 300 or more but less than 3,000, (component B′) a monofunctional polymerizable compound, (component C) a polymerization initiator, and (component D) a coloring agent, wherein a content of the (component B′) monofunctional polymerizable compound with respect to the total content of all the polymerizable compounds is 80% by mass or more.