| 摘要 |
Disclosed is an ink composition comprising water, a colorant, and a linear ASBS'A' block copolymer wherein A and A' are each, independently of the other, blocks comprising one or more repeat monomer units of ethylene oxide, propylene oxide, or random or alternating mixtures of ethylene oxide and propylene oxide, B is a block comprising one or more repeat monomer units of an alkylsiloxane, a dialkylsiloxane, an alkyl aryl siloxane, a diarylsiloxane, or mixtures thereof, S is an optional spacer group between the A and B blocks, and S' is an optional spacer group between the B and A' blocks. Also disclosed is a multicolor ink jet printing process using the ink, wherein dry time is reduced and/or intercolor bleed is reduced.
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