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 aqueous ink set for ink jet recording includes an aqueous pigment ink containing water and a pigment as a coloring agent and an aqueous dye ink containing water and a dye as a coloring agent, in which the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and the potassium ion concentration of the dye ink is 50 ppm or less.
Abstract:
There is provided an ultraviolet-curable ink jet composition, which is stored in an storage body, including a pigment; a pigment dispersant; a polymerizable compound; and a photopolymerization initiator, in which water content is 0.05 mass % to 1.0 mass % based on the total amount of the ultraviolet-curable ink jet composition, and in which both the acid value and the amine value of the pigment dispersant are 50 mgKOH/g or less, and at least one of the acid value and the amine value thereof is 10 mgKOH/g or more.
Abstract:
There is provided a treatment liquid which is used in a recording method in which recording is performed using an ink for ink jet recording containing a coloring material on a non-absorbent recording medium, the treatment liquid contains water, a coagulant coagulating components of an ink, and two or more types of organic solvents, the organic compounds do not contain the coagulant, a surfactant, and a resin, when calculating the product of a log P value and the content (% by mass) included in the treatment liquid for each of the organic compounds, the summation is equal to or less than −10, and among the organic compounds, the content of a first organic compound of which the log P value is greater than 0 is 0.1% by mass to 10% by mass with respect to the total mass of the treatment liquid.
Abstract:
An ink set is provided which includes a first ink containing a first pigment, water, and a glycol ether having an HLB value, measured by Davies method, in the range of 4.2 to 8.0, and a second ink substantially not containing the glycol ether. The second ink contains a second pigment and water.
Abstract:
The ink jet recording method according to the invention includes a first image recording step of recording an image by adhering the background ink to a first region and a second region of a recording medium; a second image recording step of recording an image by adhering a color ink onto the background ink of the first region; and a heating step of heating the recording medium at 35° C. to 100° C., and in which at least one of the background ink and the color ink does not contain a pyrrolidone derivative with a standard boiling point of 240° C. or higher.