PROBLEM TO BE SOLVED: To provide a water-in-oil type emulsifier composition for an ink capable of achieving sufficient storage stability and good writability in preparing a water-in-oil type emulsion ink composition having, as an oil phase component, high polar oil widely used for an oil ink and the water-in-oil type emulsion ink composition using the same.;SOLUTION: High polar oils such as ethylene glycol monophenyl ether (phenoxyethanol) or benzyl alcohol can be used as an outer oil phase and a water-in-oil type emulsion ink composition having storage stability and writability is obtained by using a water-in-oil type emulsifier composition for an ink combining a silicon compound having a branch of a silicon chain represented by the general formula (1) and having a weight average molecular weight of 500 to 200,000 and a silicon compound represented by the general formula (5).;COPYRIGHT: (C)2014,JPO&INPIT
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