Active energy ray-curable inkjet recording ink

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 11/00 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C08F 2/50 (2006.01)

Patent

CA 2585631

Disclosed is an active energy ray-curable inkjet recording ink containing a colorant, a compound having an ethylene double bond, and a photopolymerization initiator. The photopolymerization initiator contains a compound represented by the general formula (1) below, and an .alpha.-aminoketone compound or an acylphosphine oxide compound. The amount of the compound represented by the general formula (1) below is not less than 40% by mass of the total photopolymerization initiator. (In the formula, A represents one selected from the group consisting of -O-, -CH2-, -CH(CH3)- and -C(CH3)2-; and R1 and R2 independently represent a hydrogen atom, a methyl group or a trimethylsilyl group.

La présente invention décrit une encre d~enregistrement à jet d~encre durcissable par rayonnement à énergie active qui comprend un colorant, un composé ayant une double liaison éthylénique et un initiateur de photopolymérisation. L~initiateur de photopolymérisation comprend un composé représenté par la formule générale (1) ci-dessous, et un composé d'.alpha.-aminocétone ou un composé d'oxyde d'acylphosphine. La quantité de composé représentée par la formule générale (1) ci-dessous est d~au moins 40% en masse de la quantité totale d~initiateur de photopolymérisation. (Dans la formule, A représente un groupe sélectionné parmi les groupes -O-, -CH2-, -CH(CH3)- et -C(CH3)2- ; et R1 et R2 représentent indépendamment un atome d~hydrogène, un groupe méthyle ou un groupe triméthylsilyle.)

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