Recording liquid and ink jet recording method
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United States of America Patent
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Aug 19, 2008
Grant Date -
Sep 4, 2003
app pub date -
Dec 26, 2002
filing date -
Jun 14, 2000
priority date (Note) -
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Abstract
The present invention relates to a recording liquid comprising at least: a pigment (a); and a polymer (b) having one or more types of bond selected from the group consisting of amide bond, urethane bond and urea bond in the molecule, having a weight-average molecular weight of 5000 to 300000 and having an acid value of free acid of not less than 55 mgKOH/g and less than 150 mgKOH/g, the surface tension of said recording liquid being 25 to 54 dyne/cm.
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