Patent ID: 7375145

Claim:
An inkjet ink comprising: a photo-acid generating agent which is capable of generating an acid as it is irradiated with light; a color component; and an acid-polymerizable compound which can be polymerized in the presence of an acid; wherein the acid-polymerizable compound comprises a compound represented by the following formula 1: R 13 —R 14 —R 13 p 1 wherein R 13 is a group selected from a group consisting of a vinyl ether moiety, an atomic group having a vinyl ether moiety, an alkoxy moiety, an ether moiety, an ester moiety, and a hydroxyl moiety, wherein at least two of R 13 are selected from a vinyl ether moiety or an atomic group having a vinyl ether moiety; R 14 is an atomic group comprising a substituted or unsubstituted cyclic skeleton containing an oxygen atom as a ring-constituting atom and having a valence of p+1; and p is a positive integer, and wherein the cyclic skeleton is one represented by VE2-a or VE2-b: wherein at least one of X2, Y2 and Z2 contains at least one oxygen atom; X2 and Z2 are respectively an alkylene group having 1 to 5 carbon atoms or a bivalent organic group containing an oxygen atom as an ether linkage; Y2 is an oxygen atom, an alkylene group having 1 to 2 carbon atoms, or a bivalent organic group containing an oxygen atom as an ether linkage; and k is 0 or 1.