Abstract: An ink jet method includes causing a treatment liquid to adhere to a recording medium; a white ink to adhere to the recording medium; and a non-white ink to adhere to the recording medium. The treatment liquid, white ink, and non-white ink are applied by main scans of a recording head and sub-scans of the recording medium that intersect the main scans. The recording head includes a first nozzle group arranged in the sub-scanning direction and discharging the treatment liquid, a second nozzle group arranged in the sub-scanning direction and discharging the white ink, and a third nozzle group arranged in the sub-scanning direction and discharging the non-white ink. The second and third nozzle groups have non-overlapping portions in the main scanning direction, and one or both of the second and third nozzle groups have a portion overlapping the first nozzle group in the main scanning direction.

Abstract: A recording method includes heating a recording medium and attaching an ink composition including an organic solvent and water to the heated recording medium by performing a main scanning a plurality of times. In each main scanning the ink composition is ejected from a recording head while a position of the recording head relative to the recording medium in a main scanning direction is changed. In the ink composition, an absolute value of a difference between a surface tension of the ink composition and a surface tension of the ink composition when the ink composition is evaporated up to an evaporation amount of 0% to 40% by mass is 1 mN/m or less.

Abstract: An ink jet recording method is provided for recording white and non-white ink compositions onto a moving recording medium. The recording medium includes a first region where both the white and non-white ink compositions are adhered, and a second region where only the white ink composition is adhered. Further, one or both of Conditions (i) and (ii) is satisfied. Condition (i): The amount of the white ink composition adhered in the first region is less than the amount of the white ink composition adhered in the second region. Condition (ii): The number of times the white ink composition is scanned across the first region is less than the number of times the white ink composition is scanned across in the second region.

Abstract: An ink jet recording method includes an ink attachment step of discharging an aqueous white color ink containing a white color material from an ink jet head onto a recording medium having a white color recording surface with glossiness of 30 or less at an L* value of 75 or more, and attaching the aqueous white color ink onto the recording medium, and a drying step of drying the recording medium onto which the aqueous white color ink is attached, in which a ratio of glossiness of an attachment portion of the aqueous white color ink to the white color recording surface after the drying is two times or more.

Abstract: A recording method according to the invention includes adhering a reaction liquid which reacts with and aggregates components of an ink composition to a recording medium; adhering a first ink composition to the recording medium; and adhering a second ink composition having reactivity with the reaction liquid lower than that of the first ink composition to the recording medium. Adhesion of the second ink composition to the recording medium is performed prior to adhesion of the first ink composition to the recording medium.

Abstract: A printing method includes a white ink application step of ejecting a white ink from a printing head to apply the white ink onto a printing medium, a non-white ink application step of ejecting a non-white ink containing a non-white coloring material from a printing head to apply the non-white ink onto the printing medium, and a treatment liquid application step of applying a treatment liquid containing a flocculant onto the printing medium. The white ink contains a white pigment and inorganic fine particles having a smaller volume average particle size than the white pigment.

Abstract: An ink jet printing method includes a printing step of performing a plurality of times of scanning performed by ejecting a treatment liquid and an ink composition from an ink jet head having treatment liquid nozzles and ink nozzles that is being transferred in a scanning direction, thus applying the treatment liquid and the ink composition onto a printing medium. The ink jet head has an arrangement of treatment liquid ejection nozzles that includes a coincident portion, and an arrangement of ink ejection nozzles that includes a coincident portion, and the coincident portions are coincident in position in the sub-scanning direction with each other.

Abstract: An ink set includes a reaction liquid containing coagulant; a first ink containing a color material; and a second ink containing a color material. The ink set is used for recording on a non-absorptive recording medium or a low-absorptive recording medium and for imparting the reaction liquid, the first ink, and the second ink to the recording medium in a superimposed manner in this order.

Abstract: An ink jet printing method includes scanning a printing medium in a scanning direction a plurality of times with an ink jet head from which inks and a treatment liquid acting to flocculate constituents of the inks are ejected. The ink jet head includes first ink nozzles filled with a first ink and arranged in a sub-scanning direction, second ink nozzles filled with a second ink having a different composition from the first ink and arranged in the sub-scanning direction, and treatment liquid nozzles filled with the treatment liquid and arranged in the sub-scanning direction. At least some of the treatment liquid nozzles are coincident in the sub-scanning direction with the first and second ink nozzles. The first ink nozzles are closest to the treatment liquid nozzles in the scanning direction, and the first ink exhibits a viscosity increase by a factor of 6.0 or less.

Abstract: According to the invention, there is provided a recording method which includes adhering an ink composition to a recording medium, and adhering a reaction liquid to the recording medium, the reaction liquid containing water and a reagent for aggregating or thickening components of the ink composition, and having a pH of 7 to 10. In the adhering of the reaction liquid, an epoxy-based adhesive is used for at least a portion of a reaction liquid passage for supplying the reaction liquid to an ink jet head, and a member in contact with the reaction liquid in the ink jet head, and the reaction liquid is discharged from the ink jet head so as to adhere to the recording medium.

Abstract: An ink jet recording method according to one aspect of the invention includes a reaction liquid adhesion step of ejecting from an ink jet head, a reaction liquid in the form of liquid droplets containing an aggregating agent which aggregates a color ink composition so as to adhere the reaction liquid to a recording region of a recording medium which is a non-absorptive recording medium or a low-absorptive recording medium; and a color ink adhesion step of ejecting the color ink composition in the form of liquid droplets from the ink jet head so as to adhere the color ink composition to the recording region of the recording medium to which the reaction liquid is adhered. In the reaction liquid adhesion step, while ejecting the liquid droplets, the ink jet head is scanned a plurality of times so as to be moved relatively with respect to the recording medium.

Abstract: An ink set for ink jet recording that adheres ink to a heated recording medium includes first and second water-based ink compositions. The first water-based ink composition contains a first solid content including a first coloring material and a first organic solvent. The second water-based ink composition contains a second solid content including a second coloring material and a second organic solvent. The first ink composition contains 5% by mass or more of the first solid content than the second solid content contained in the second ink composition. The second ink composition contains 7% by mass or more of the second organic solvent than the first organic solvent contained in the first ink composition.

Abstract: An ink jet recording method includes: heating a recording medium; and ejecting a white color water-based ink composition from an ink jet head to a recording medium heated in the heating of the recording medium and causing the white color water-based ink composition to adhere to the recording medium, the causing of the white color water-based ink composition to adhere is performed by performing scanning, in which the ink composition is ejected while relative positions between the ink jet head and the recording medium are changed in a scanning direction, a plurality of times, and a maximum time of the scanning performed once is equal to or greater than 0.8 seconds, and the white color water-based ink composition contains first particles that are a white color pigment and second particles that are particles of a different kind from the first particles and that are inorganic fine particles.

Abstract: A recording method includes: causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium; causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and causing a clear ink composition that includes resin to adhere to the recording medium.

Abstract: A water-based ink jet ink composition includes: a coloring material; and resin, a content of the coloring material being equal to or less than 1.5% by mass with respect to the ink composition, a change in a volume average particle diameter of the resin after mixing a water-mediated solution for the resin and a 0.3M magnesium sulfate aqueous solution is equal to or less than three times as large as a change in the volume average particle diameter before the mixing, and the ink composition is used by being caused to adhere to a recording medium along with a processing solution that contains a coagulant for coagulating constituents of the ink composition.

Abstract: An ink jet recording method is provided for a low or non-absorbable recording medium using a solution containing a colored ink, a clear ink, and an aggregating agent for aggregating constituents in the colored ink. The method includes: causing the solution containing the aggregating agent to adhere to the recording medium; and a main scanning in which the colored and the clear inks are ejected while relative positions of an ink jet head and the recording medium are changed to a main scanning direction, and a sub-scanning in which the relative positions of the ink jet head and the recording medium are changed to a sub-scanning direction. The main scanning involves a region where a recording region in which the colored ink is ejected in the main scanning and a recording region in which the clear ink is ejected in the main scanning overlap one another.

Abstract: According to the invention, there is provided a recording method which includes adhering an ink composition to a recording medium, and adhering a reaction liquid to the recording medium, the reaction liquid containing water and a reagent for aggregating or thickening components of the ink composition, and having a pH of 7 to 10. In the adhering of the reaction liquid, an epoxy-based adhesive is used for at least a portion of a reaction liquid passage for supplying the reaction liquid to an ink jet head, and a member in contact with the reaction liquid in the ink jet head, and the reaction liquid is discharged from the ink jet head so as to adhere to the recording medium.

Abstract: The ink jet printing method includes applying an aqueous coloring ink composition onto a printing surface of a printing medium by being ejected from an ink jet head. The printing surface of the printing medium contains natural fibers and synthetic fibers.

Abstract: Disclosed is a recording method including attaching a reaction solution which forms a recording region S1 by attaching a reaction solution which includes an aggregating agent which is able to aggregate components of a color ink composition to a target recording medium with an attachment amount of 100 nmol/inch2 to 1500 nmol/inch2 of the aggregating agent, and attaching a color ink composition which forms a recording region S2 by attaching the color ink composition which includes a coloring material and a resin to the recording region S1 within 30 seconds of attaching the reaction solution.

Abstract: A recording method is provided including: discharging and adhering a reaction liquid to an ink non-absorbable or ink low-absorbable recording medium in a form of a droplet, by using an ink jet method, the reaction liquid containing a reagent for aggregating or thickening of a colored ink composition; and adhering a colored ink composition to the recording medium to which the reaction liquid has adhered. The recording medium is heated before adhering the colored ink composition to the recording medium, a period from when adhering of the reaction liquid is ended until adhering of the colored ink composition is started is within 30 seconds, and a surface temperature of the recording medium from the adhering of the reaction liquid to the adhering of the colored ink composition is equal to or lower than 38° C.