Disclosed is an ink composition comprising water, a colorant, and an ABSCS′B′A′ or BASCS′A′B′ block copolymer wherein A and A′ are blocks containing one or more ethylene oxide repeat monomer units, B and B′ are blocks containing one or more propylene oxide repeat monomer units, C is a block comprising one or more repeat monomer units of an alkylsiloxane, a dialkylsiloxane, an alkyl aryl siloxane, or a diarylsiloxane, S is an optional spacer group between the A or B block and the C block, and S′ is an optional spacer group between the C block and the A′ or B′ block. Also disclosed is a multicolor ink jet printing process using the ink, wherein dry time is reduced and/or intercolor bleed is reduced.