An ink jet ink composition includes water, a phospholipid that forms a fine particle, and a coloring material that is incorporated in the fine particle.

An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded and also has a detector that detects the amount of ink composition encased. The ink composition contains a surfactant with an HLB of 6 or less.

An ink jet recording apparatus includes an ink composition, an ink encasement in which the ink composition is encased, a recording head that ejects the ink composition, and a carriage configured to move the recording head back and forth. The carriage carries the ink encasement, with the ink encasement integrated with the carriage. The ink encasement has an ink fill port that opens and shuts as a port through which the ink composition is loaded and also has a detector that detects the amount of ink composition encased. The ink composition contains a surfactant with an HLB of 6 or less.

An object of the present invention is to provide a compound exhibiting a cyan color having properties such as high chroma, high light fastness, and high solubility. The compound is represented by the following General Formula (1). ##STR00001##
In Formula (1), R.sub.1 and R.sub.2 each independently represent a linear, branched, or cyclic alkyl group having 6 or more and 12 or fewer carbon atoms, R.sub.3 represents a 4-alkylphenyl group, a 4-halogenated phenyl group, or a 3-alkoxyphenyl group, R.sub.4 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms, and R.sub.5 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms or a benzyl group.

An object of the present invention is to provide a compound exhibiting a cyan color having properties such as high chroma, high light fastness, and high solubility. The compound is represented by the following General Formula (1). ##STR00001##
In Formula (1), R.sub.1 and R.sub.2 each independently represent a linear, branched, or cyclic alkyl group having 6 or more and 12 or fewer carbon atoms, R.sub.3 represents a 4-alkylphenyl group, a 4-halogenated phenyl group, or a 3-alkoxyphenyl group, R.sub.4 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms, and R.sub.5 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms or a benzyl group.

A colorant dispersion contains water, (meth)acrylic resin particles containing a disperse dye, a nonionic surfactant, and a tertiary amine compound represented by Formula (1) below:

##STR00001##

where R represents —(CH.sub.2CH.sub.2O).sub.mH, an aliphatic group containing 6 to 18 carbon atoms, or an aromatic group and each m independently represents an integer of 1 to 10. The (meth)acrylic resin particles have a glass transition temperature of 60° C. or higher and contain 10% by mass or more of the disperse dye with respect to the total mass of the (meth)acrylic resin particles.

A colorant dispersion contains water, (meth)acrylic resin particles containing a disperse dye, a nonionic surfactant, and a tertiary amine compound represented by Formula (1) below:

##STR00001##

where R represents —(CH.sub.2CH.sub.2O).sub.mH, an aliphatic group containing 6 to 18 carbon atoms, or an aromatic group and each m independently represents an integer of 1 to 10. The (meth)acrylic resin particles have a glass transition temperature of 60° C. or higher and contain 10% by mass or more of the disperse dye with respect to the total mass of the (meth)acrylic resin particles.

An inkjet ink, a method for preparing the same and use thereof are described. The inkjet ink includes the following components in mass percentage: 5%-15% of a reactive dye, 15%-40% of a polyol, 2%-35% of an auxiliary agent, and remaining amount of water, wherein the reactive dye is selected from at least one of a dye with bifunctional reactive groups and a dye with trifunctional reactive groups. The described reactive dye in the inkjet ink has high reactivity, can react with a fabric and firmly adhere to the fabric, with the color fixation rate as high as 90-95%, good color fastness, less unfixed dye, and good storage stability. The described inkjet ink only needs to be washed with cold water or warm water to remove a primer during post-processing, and the washing period is short, and it can meet the requirements of clothing use even without washing by water.

An inkjet ink, a method for preparing the same and use thereof are described. The inkjet ink includes the following components in mass percentage: 5%-15% of a reactive dye, 15%-40% of a polyol, 2%-35% of an auxiliary agent, and remaining amount of water, wherein the reactive dye is selected from at least one of a dye with bifunctional reactive groups and a dye with trifunctional reactive groups. The described reactive dye in the inkjet ink has high reactivity, can react with a fabric and firmly adhere to the fabric, with the color fixation rate as high as 90-95%, good color fastness, less unfixed dye, and good storage stability. The described inkjet ink only needs to be washed with cold water or warm water to remove a primer during post-processing, and the washing period is short, and it can meet the requirements of clothing use even without washing by water.

Water based, energy curable ink jet compositions that have good insulating properties are described herein. The inventive water based energy curable ink jet compositions include a water soluble or water dispersible component polymerizable by free radical polymeration upon exposure to polymerizing radiation, wherein the cured ink jet compositions have good insulating properties, exhibited for example, by its breakdown voltage. Also described are electronic devices including ink jet-printed layers of the ink jet compositions.