Embodiments of the invention relate to a method of indirect printing with an aqueous ink formulation applied to the surface of the intermediate transfer member. Related apparatus, systems and treatment formulations are disclosed herein.

A radiation-curable ink jet composition that is a white ink containing a white coloring material or a pale or clear ink containing 1.2% by mass or less of a coloring material contains at least one polymerizable compound including at least one of a monofunctional monomer having a nitrogen-containing heterocyclic structure and a monomer having a hydroxy group. In the composition, the thioxanthone-based photopolymerization initiator content is limited to 0.3% or less relative to the total mass of the radiation-curable ink jet composition.

A radiation-curable ink jet composition that is a white ink containing a white coloring material or a pale or clear ink containing 1.2% by mass or less of a coloring material contains at least one polymerizable compound including at least one of a monofunctional monomer having a nitrogen-containing heterocyclic structure and a monomer having a hydroxy group. In the composition, the thioxanthone-based photopolymerization initiator content is limited to 0.3% or less relative to the total mass of the radiation-curable ink jet composition.

The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, β-alanine, proline and γ-aminobutyric acid. The pre-treatment liquid is non-yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.

The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, β-alanine, proline and γ-aminobutyric acid. The pre-treatment liquid is non-yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.

A photocurable inkjet printing ink composition satisfies requirements A to F: A: the total content of compounds selected from vinyl methyl oxazolidinone, N,N-dimethylacrylamide, benzyl acrylate, and N-vinylcaprolactam, is 30.0% by mass or higher; B: the total content of compounds selected from saturated hydrocarbon group-containing monofunctional monomers with 6 or more carbon atoms and saturated hydrocarbon group-containing polyfunctional monomers with 6 or more carbon atoms is 15.0% by mass or higher in the photocurable inkjet printing ink composition; C: the content of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide is 3.5% by mass or higher; D: the total content of ethoxy(2,4,6-trimethylbenzoyl)phenylphosphine oxide and bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide is 6.0 to 12.0% by mass, and their ratio is 0.3 to 1.5; E: the content of amine-modified oligomer is 0.5 to 15.0% by mass in the photocurable inkjet printing ink composition; and F: a colorant is included.

The present invention provides: a dispersing agent characterized by containing (A) 1-50 mass % of an acetylene-based surfactant that has a molecular weight of 500 or less and is at least one kind of compound selected from acetylene glycols represented by a specific formula and ethoxylated acetylene glycols represented by a specific formula, and (B) 50-99 mass % of a partially or fully-neutralized styrene/maleic anhydride copolymer salt that has a weight average molecular weight of less than 10,000, and that is a salt in which to a styrene maleic anhydride copolymer represented by a specific formula and derivatives thereof have been partially or fully neutralized; a dispersion element and ink composition that use said dispersing agent; and a manufacturing method for the same.

The present invention provides a composition comprising a synergistic combination of at least three dispersant classes, which is used to produce ultra-stable disperse dye dispersions and inks comprising azo-functional colorants.

The present invention provides a composition comprising a synergistic combination of at least three dispersant classes, which is used to produce ultra-stable disperse dye dispersions and inks comprising azo-functional colorants.

A recording method according to an embodiment of the present disclosure is a recording method on a fabric, including an ink adhering step of adhering droplets of an ink composition containing a pigment and resin particles to the fabric; and a treatment solution adhering step of adhering droplets of a treatment solution containing a crosslinking agent to the fabric, in which a maximum weight per droplet of the droplet of the ink composition is 30 ng or less, a maximum weight per droplet of the droplet of the treatment solution is 30 ng or less, and a droplet weight of the treatment solution is equal to or less than a droplet weight of the ink composition.