Patent ID: 8955954
Filing Date: 2015-02-17
Classification: B41J,C09D

Abstract:
1. An ink jet recording method comprising ejecting a pigment ink of using an ink jet head which ejects ink droplets moving at a relative speed of not less than 0.5 m/s relative to a recording medium, comprising: water, an acetylene glycol or 2-ethyl-1,3-hexanediol, and an unsaturated fatty acid, an amino acid, an alkali metal hydroxide. and an amine; wherein the content of the amine is 0.05% to 2% by mass with respect to a total mass of the pigment ink: wherein the unsaturated fatty acid includes oleic acid, wherein the amino acid includes at least one of trimethylglycine and dimeth thylglycine; wherein the alkali metal hydroxide includes one or more selected from the group consisting of potassium hydroxide (KOH), sodiumhydroxide (NaOH) and lithium hydroxide (LiOH): wherein the amine includes at least one of triethanolamine and tripropanolamine: the ink droplets ejection speed is 4 m/s to 15 m/s.