Abstract: Object A grease composition having a low dust generation, long life, and low low-temperature torque under an ultra high-speed, high-temperature environment with a rotational speed exceeding 30000 rpm is provided, and by applying the grease composition to a rolling bearing, the rolling bearing having a low dust generation, long life and low low-temperature torque, and a motor including such a rolling bearing are also provided. Resolution Means Provided are: a grease composition containing a base oil and a thickener, the base oil including a fluorine oil, an ester oil, and a polyalphaolefin oil, and the thickener including a fluorine-based thickener, a urea-based thickener, and a barium complex soap thickener, each of these components being included in the grease composition at a predetermined proportion; a rolling bearing filled with the grease composition; and a motor including the rolling bearing.

Abstract: Provided is an ink jet ink composition which is a solvent-based ink, the composition including a metal pigment, a polyoxyalkylene amine compound, and an organic solvent, in which the metal pigment is a metal particle having a surface treated with a surface treatment agent, the surface treatment agent is a compound represented by Formula (1) or Formula (2), the polyoxyalkylene amine compound includes a compound represented by Formula (3), and the compound represented by Formula (3) is formed such that an average of m/(m+n)×100 (%) is 20% or greater. (R1—)P(O)(OH)2??(1) (R2—O—)aP(O)(OH)3-a??(2) (In Formulae (1) and (2), R1 and R2 each independently represent a hydrocarbon group having 14 or more carbon atoms which may be substituted with a substituent, and a represents 1 or 2.

Abstract: Provided is a recording method including an adhesion step of jetting an ink composition from an ink jet head and making the ink composition adhere to a recording medium, and a primary heating step of heating the recording medium in the adhesion step, in which the adhesion step includes a step in which a jetting frequency of the ink composition is 15 kHz or greater, the ink composition contains a metal pigment and a solvent component, the solvent component contains an organic solvent, and the metal pigment is a metal particle that has a scaly shape and has a surface treated with a compound represented by Formula (1) or Formula (2). (R1—)P(O)(OH)2??(1) (R2—O—)aP(O)(OH)3?a??(2) (In the formulae, R1 and R2 each independently represent a hydrocarbon group having 14 or more carbon atoms which may be substituted with a substituent, and a represents 1 or 2.

Abstract: According to an embodiment of the present disclosure, provided is an ink jet ink composition which is a solvent-based ink, the composition including a metal pigment and an organic solvent, in which the metal pigment is a metal particle having a surface treated with a surface treatment agent, the surface treatment agent contains a compound represented by General Formula (1) and a compound represented by General Formula (2), and a mass ratio of a mass of the compound represented by General Formula (2) to a total mass of the compound represented by General Formula (1) and the compound represented by General Formula (2) is 45% by mass or less. (R—O—)P(O)(OH)2??(1) (R—O—)2P(O)(OH)??(2) (In the formulae, R's each independently represent a hydrocarbon group having 8 or more carbon atoms.

Abstract: A coloring composition of the present disclosure includes a metal pigment; an acrylic-based resin having an acid value of 200 mgKOH/g or less; and a liquid medium component, the metal pigment includes metal particles, the metal particles are surface-modified with a surface treatment agent, and the surface treatment agent includes at least one selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2).

Abstract: A metal pigment composition of the present disclosure is a coloring composition or a composition to be used for preparation of the coloring composition and includes: a metal pigment; a polyoxyalkyleneamine compound; and a liquid medium component, the metal pigment includes metal particles, the metal particles are surface-modified with a surface treatment agent, and the surface treatment agent is at least one selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2).

Abstract: A recording method of the present disclosure, which is a recording method of performing recording on a recording medium by using a recording device including an ink jet head, includes ejecting a composition for ink jet from the ink jet head, in which the composition for ink jet contains a metal pigment, the metal pigment is formed of a plurality of scaly metal particles, the ink jet head includes a circulation flow path for circulating the composition for ink jet, and an average thickness of the metal particles determined by atomic force microscopy is 19 nm or less.

Abstract: An ink jet ink composition containing a metal pigment, and a liquid medium component, in which the metal pigment is made of a metal particle, the metal particle is surface-modified with a surface treatment agent, the surface treatment agent is at least one selected from the group consisting of a compound represented by formula (1) below and a compound represented by formula (2) below, and the ink jet ink composition is a water-based ink or a solvent-based ink: (R—O)aP(O)(OH)3-a ??(1) (R)P(O)(OH)2 ??(2) where R is independently a hydrocarbon group having a carbon skeleton having 13 or more carbon atoms, and a is 1 or 2.

Abstract: An ink jet printing method includes a metallic ink application step of ejecting a metallic ink composition containing a metallic pigment from an ink jet head to apply the metallic ink composition onto a printing medium, a heating step of heating the metallic ink composition applied on the printing medium with an infrared heater, and a coloring ink application step of ejecting a coloring ink composition containing a coloring material from an ink jet head to apply the coloring ink composition onto the metallic ink composition on the printing medium. Each of the metallic ink composition and the coloring ink composition is a water-based ink or a solvent-based ink.

Abstract: An ink jet composition according to the present disclosure contains a plurality of metal particles, a hydrophobic phosphorus surface treatment agent, a polyoxyalkyleneamine compound, and a solvent. The amount of the contained polyoxyalkyleneamine compound is 0.5 parts by mass to 50 parts by mass per 100 parts by mass of the metal particles.

Abstract: An ink jet composition of the invention is discharged by an ink jet method and includes: metal powder; an organic solvent; and a resin having a styrene-maleic acid structure as a binder resin, in which the ink jet composition contains metal powder surface-treated with a fluorine-based compound as the metal powder.

Abstract: An ink jet composition of the invention is discharged by an ink jet method and includes: metal powder; an organic solvent; and a resin having a styrene-maleic acid structure as a binder resin, in which the ink jet composition contains metal powder surface-treated with a fluorine-based compound as the metal powder.

Abstract: An ink jet composition of the invention is discharged by an ink jet method and includes: metal powder; an organic solvent; and a resin having a styrene-acrylic acid structure as a binder resin, in which the ink jet composition contains metal powder surface-treated with a fluorine-based compound as the metal powder.