Patent ID: 8147921
Filing Date: 2012-04-03
Classification: C09D

Abstract:
1. An ink set for inkjet recording, comprising at least: a colored liquid comprising at least a radically polymerizable compound, a photopolymerization initiator, and a colorant; and an undercoat liquid comprising at least a radically polymerizable compound and a photopolymerization initiator, the undercoat liquid comprising a sensitizer represented by Formula (I-C) below, wherein R 1C , R 2C , R 3C , R 4C , R 5C , R 6C , R 7C , and R 8C independently denote a hydrogen atom, a halogen atom, an alkyl group, a hydroxy group, a cyano group, a nitro group, an amino group, an alkylthio group, an alkylamino group, an alkoxy group, an alkoxycarbonyl group, an acyloxy group, an acyl group, a carboxyl group, or a sulfo group, wherein the undercoat liquid either comprises no colorant other than a white pigment, or comprises a colorant other than a white pigment in an amount of not greater than 1 wt % relative to the total weight of the undercoat layer, wherein the undercoat liquid comprises as the photopolymerization initiator at least one compound selected from the group consisting of an acylphosphine oxide compound and an α-aminoacetophenone compound, and wherein the colored liquid and the undercoat liquid are solvent-free.