A treatment liquid composition according to the present disclosure includes a polyamide epihalohydrin polymer, and a quaternary ammonium salt polymer other than the polyamide epihalohydrin polymer.

An example of a multi-fluid kit includes a pretreatment fluid, a fixer fluid, and a white inkjet ink. The pretreatment fluid includes anionically modified cellulose nanocrystals and a first aqueous vehicle. In some examples, the fixer fluid includes an azetidinium-containing polyamine and a second aqueous vehicle. The multi-fluid kit is suitable for use in inkjet textile printing.

A digital printed fabric includes a base cloth and a digital printing ink disposed on the base cloth, and a manufacturing method for the digital printing ink includes the following steps. A first thermal process including mixing a dye, a crosslinking agent, and a polyol is performed, such that a polymer dye is formed, in which a reaction temperature of the first thermal process is between 70° C. and 90° C. A second thermal process including mixing the polymer dye and an aqueous bridging agent is performed, such that a first mixture is formed, in which a reaction temperature of the second thermal process is between 90° C. and 120° C. A third thermal process including mixing the first mixture and a chain extender is performed, such that the digital printing ink is formed, in which a reaction temperature of the third thermal process is between 120° C. and 150° C.

The present disclosure describes fluid sets for printing, methods of textile printing, and textile printing systems. In one example, a fluid set for printing can include a pretreat composition, a fixer composition, and a white ink composition. The pretreat composition can include water and an emulsion of a silicone polymer having amino groups. The fixer composition can include a liquid vehicle and a cationic polymer. The white ink composition can include a liquid vehicle, a white pigment dispersion, and a polymeric binder.

A method for producing a printed textile item, the method including applying a treatment liquid containing an aggregating agent to a fabric using an inkjet method, applying a white ink having a charge density of at least 30 μeq/g, using a step of using an inkjet method and a wet-on-wet method, to the fabric to which the treatment liquid has been applied, applying a color ink for which the Young's modulus of the dried coating film is not more than 3.0 MPa, using an inkjet method and a wet-on-wet method, to the fabric to which the white ink has been applied.

An image forming method includes: preparing a fabric to which an aggregating agent is attached; applying an aqueous ink containing a pigment, a first resin, and water onto the fabric to which the aggregating agent is attached; and applying a coating liquid containing a second resin and water onto the applied aqueous ink, wherein the second resin is aggregated by the aggregating agent, a content of the second resin in the coating liquid is smaller than a content of the first resin in the aqueous ink, and an amount of the coating liquid attached to the fabric is larger than an amount of the aqueous ink attached to the fabric.

An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm.sup.3).sup.1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.

Polymer dispersions in aqueous media form binders for pretreatments, coatings and images on substrates. The polymer includes polyamide segments and may have a high percentage of tertiary amide linkages, which facilitates film formation at temperature convenient to textiles and nonwovens. The polyamides are linked with reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).

A treatment liquid composition for ink jet pigment printing is a treatment liquid composition which is used to be adhered to a cloth and which includes resin particles containing a polyester-based resin and a cationic compound.

A treatment liquid composition for ink jet pigment printing is a treatment liquid composition which is used to be adhered to a cloth and which includes a block isocyanate compound, a hydroxyethyl cellulose, and a cationic compound.