INK, INK CARTRIDGE, AND INK JET RECORDING METHOD

An aqueous ink for ink jet includes a coloring material, a solvent, and a surfactant having an HLB value of 9.0 or less. The solvent includes a solvent A having a solubility in water at 20°C of 5.00 g/100g-H 2 O or less and a solvent B other than the solvent A. The solvent A includes an alcohol havi...

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Bibliographische Detailangaben
Hauptverfasser:	KAWAMURA, Hidetaka, YOSHIMASA, Yutaka, KOIKE, Shoji, TERADA, Masahiro, MASADA, Yohei, AOTANI, Takaharu, OOTSUKA, Masanobu, TAYA, Akihiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An aqueous ink for ink jet includes a coloring material, a solvent, and a surfactant having an HLB value of 9.0 or less. The solvent includes a solvent A having a solubility in water at 20°C of 5.00 g/100g-H 2 O or less and a solvent B other than the solvent A. The solvent A includes an alcohol having a vapor pressure at 20°C of 0.5 mmHg or less and a surface tension of 30.0 mN/m or more. The content of the alcohol in the aqueous ink is 0.7 or more times the solubility in water at 20°C in an equal amount to the aqueous ink. The solvent B has a partition coefficient (P B ) satisfying the following equation (1). 1.44 LogP A 0.1 x 3.4 ¤ LogP B ¤ 0.6