Pigment dispersion and water-based pigmented jet inks
There is provided a pigment dispersion including water, an aqueous polymer and a pigment as essential components, wherein the aqueous polymer is a carboxyl group-containing polyurethane which is formed by reacting a diol compound, a diisocyanate compound and a reaction product, which is mainly compo...
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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
21.07.2014
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Subjects | |
Online Access | Get full text |
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Summary: | There is provided a pigment dispersion including water, an aqueous polymer and a pigment as essential components,
wherein the aqueous polymer is a carboxyl group-containing polyurethane which is formed by reacting a diol compound, a diisocyanate compound and a reaction product, which is mainly composed of a compound represented by general formula (1) and prepared by reacting a diol compound having one or two carboxyl groups within each molecule with a diisocyanate compound and which also has a reaction index as calculated by (Formula 1) within a range from 0.95 to 1.10. Reaction index = reaction rate of isocyanate group × number of moles diisocyanate compound B / number of moles of diol compound A |
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Bibliography: | Application Number: TW200998132640 |