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US09303175B2 Ink composition for ink jet recording and ink jet recording method 有权
喷墨记录用油墨组合物和喷墨记录方法

Ink composition for ink jet recording and ink jet recording method
Abstract:
An ink composition for ink jet recording, containing: a dye; organic solvents; and water, wherein a ratio (S1/S2) of a content (S1) of the first organic solvent and a content (S2) of the second organic solvent being 15.3 or more and 205 or less: and wherein the organic solvents including a first organic solvent satisfying a following property (A) and a second organic solvent not satisfying the property (A), and property (A): when a mixture with polyvinyl alcohol is produced, a cluster having a mass of 70% or more based on a total mass of the mixture is formed and when a load of 5.3 g/mm2 or more and 7.1 g/mm2 or less is applied to the cluster, a cluster having a mass of 90% or more based on a total mass of the cluster is formed.
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