The present invention provides an ink jet recording method capable of recording an image having good abrasion resistance by using an aqueous ink and a reaction liquid. In the ink jet recording method, the aqueous ink containing a resin particle and the reaction liquid containing a reactant for aggregating the component in the aqueous ink are ejected from a recording head of the ink jet system and applied onto a recording medium. The reaction liquid contains a compound represented by the general formula (1) (n in the formula represents an integer of 0 to 3). At least one of the aqueous ink and the reaction liquid contains a surfactant having an HLB value of 15. ##STR00001##

A fluid set for inkjet printing comprises an aqueous ink jet ink and a co-reactive fluid. The ink jet ink comprises a pigment and a polymeric dispersing agent having a functional group capable of reacting with a primary or secondary amine. The co-reactive fluid comprises a compound having at least two functional groups selected from the group consisting of primary amines and secondary amines. The co-reactive fluid is preferably a primer, an inkjet ink or an over print varnish.

The present disclosure provides, in part, compositions comprising stimuli-responsive particles and methods of preparing and using the same.

At least one processor performs control of forming a plurality of print alignment patterns on a recording medium based on a first print alignment mode in which a second pattern formed with a processing liquid based on second image data is formed to be partially shifted with respect to a first pattern formed with ink based on first image data. The first pattern includes a reference pattern used for alignment with the second pattern. The second pattern includes an adjustment pattern used for alignment with the first pattern and a periodic pattern in which the ink and the processing liquid react with each other. A part of the second pattern formed to be partially shifted is the adjustment pattern.

An inkjet printing apparatus comprises: a printing unit configured to print an image on a print medium, the printing unit including a first discharge portion configured to apply ink, and a second discharge portion configured to apply a reactive liquid; and a determination unit configured to determine an application amount of the reactive liquid based on an application amount of the ink for each partial area of the print medium. The second discharge portion is configured to apply at least one of a first reactive liquid and a second reactive liquid. The determination unit determines an application amount of the first reactive liquid and an application amount of the second reactive liquid based on the application amount of the ink.

An ink jet recording method records an image on a recording medium using an aqueous ink containing a particle and a first resin particle. The method includes an ink application step of applying an aqueous ink to a recording medium and a heating step of heating the recording medium applied with the aqueous ink to a temperature that is equal to or higher than the glass transition temperature Tg ( C.) or melting point T.sub.M ( C.) of the first resin particle and is less than the glass transition temperature Tg ( C.) or melting point T.sub.M ( C.) of the particle. The particle has an average primary particle size D.sub.P0 (nm) of 150 nm or less, and in the heating step, the recording medium is heated to melt the first resin particle and to generate holes.

A printing apparatus includes: a printing unit having a first ejection port array and a second ejection port array; and a control unit configured to execute multipass printing to print an image in a predetermined region on a printing medium by scanning the printing unit N times (N is an integer equal to or greater than 2) in a main scanning direction intersecting a sub-scanning direction, and to perform control so that, in a case where an application amount of a color material ink per unit area corresponding to the predetermined region on the printing medium is a first amount, a first ratio of an application amount of the color material ink for printing in last N/2 scans to an application amount of the color material ink for printing in first N/2 scans among the N scans for printing an image is greater than 1.

An ink jet recording method includes a step of providing a recording medium with an aqueous ink containing a pigment dispersed by an action of an anionic group, a resin particle and a wax particle and an aqueous reaction liquid containing a reaction agent that reacts with the aqueous ink and a step of heating the recording medium provided with the aqueous ink and the aqueous reaction liquid. A heating temperature, a glass transition temperature of the resin particle and a melting point of the wax particle satisfy a predetermined relationship, average particle diameters of the pigment and the wax particle satisfy a predetermined relationship and anionic groups of the pigment, the resin particle and the wax particle satisfy a predetermined relationship.

An ink set containing an aqueous ink and a reaction liquid that hardly causes white turbidity due to heat and aging in the reaction liquid and is capable of recording an image having favorable abrasion resistance and water abrasion resistance is provided. The ink set is an ink set used in an ink jet recording method for recording an image on a recording medium by using an aqueous ink, and an aqueous reaction liquid containing a reactant reacting with the aqueous ink. The aqueous ink contains a resin. The reactant contains at least one selected from the group consisting of a polyvalent metal salt and a cationic resin. The reaction liquid further contains an ionic surfactant, and a crosslinking agent capable of forming a bond with the resin in the aqueous ink.

A precoat application system is disclosed. The precoat application system includes a pressure member configured to apply contacting pressure to a hydrophobic compliant member. A precoat solution, disposed on at least a portion of a surface of the hydrophobic compliant member, is delivered to a surface of paper in contact with the hydrophobic compliant member when the paper is passed between the hydrophobic compliant member and the pressure member. A pressure member is configured to apply pressure to the surface of the paper and the precoat solution on the surface of the paper to obtain a uniform coating of the precoat solution on the surface of the paper. The precoat solution may include an aqueous salt solution, such as magnesium chloride, calcium nitrate, barium, or a combination thereof.