Polyvinyl alcohol based block copolymer and pigment dispersion aqueous liquid using the same and recording liquid

作者: Masanobu Yokoyama , Hideko Akai , Takahiro Saitou , Hideaki Tanaka , Nobuhiko Ueno

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摘要: A recording liquid capable of giving a printed matter which is high in printing density, suppressed blur, has quality, and good fastness recorded including light fastness, water the like having low viscosity, discharge properties excellent storage stability. The invention concerned with polyvinyl alcohol based block copolymer represented by following general formula (1), pigment dispersion aqueous containing this an medium, liquid. wherein A, B, X1, X2, X3, X4, m1, m2 have same meanings as defined specification.

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