Water-based ink composition for ink-jet printing, ink-jet printing method using the same and printed matter
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United States of America Patent
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Oct 19, 2004
Grant Date -
Mar 21, 2002
app pub date -
Jul 30, 2001
filing date -
Aug 1, 2000
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Abstract
A water-based ink composition for ink-jet printing, containing at least pigment, a dispersing resin, a surface active agent, an organic solvent and water, in which the pigment is dispersed with the dispersing resin, characterized in that the dispersing resin comprises a copolymer (I) prepared by polymerizing a monomer mixture (I) containing a monomer (A) represented by the formula (I), a monomer (B) represented by the formula (II) and a monomer (C) represented by the formula (III) and a copolymer (II) prepared by polymerizing a monomer mixture (II) containing a monomer (D) represented by the formula (IV) and a monomer (E) represented by the formula (V).
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