A thermal transfer method for blended fabrics and related system, blended fabric and items comprising the blended fabric are described. The thermal transfer method comprises: printing a designed pattern on a thermal transfer paper with a digital printer to obtain the thermal transfer paper having the pattern; mixing one or more epoxy resins, with one or more polyamine and solvent to prepare a pretreatment liquid; immersing a blended fabric in the pretreatment liquid, then being subject to pressing and drying to obtain a treated blended fabric; attaching the thermal transfer paper having the pattern to the treated blended fabric to obtain a thermal transfer paper attached to the treated blended fabric, and then performing a thermal pressure treatment of the thermal transfer paper attached to the treated blended fabric to obtain a thermally transferred blended fabric.

A thermal transfer method for blended fabrics and related system, blended fabric and items comprising the blended fabric are described. The thermal transfer method comprises: printing a designed pattern on a thermal transfer paper with a digital printer to obtain the thermal transfer paper having the pattern; mixing one or more epoxy resins, with one or more polyamine and solvent to prepare a pretreatment liquid; immersing a blended fabric in the pretreatment liquid, then being subject to pressing and drying to obtain a treated blended fabric; attaching the thermal transfer paper having the pattern to the treated blended fabric to obtain a thermal transfer paper attached to the treated blended fabric, and then performing a thermal pressure treatment of the thermal transfer paper attached to the treated blended fabric to obtain a thermally transferred blended fabric.

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.

An inkjet pre-treatment fluid for textile printing includes a fixing agent including a multivalent metal cation; and a blocked polyisocyanate selected from the group consisting of a non-ionic blocked polyisocyanate, a cationic blocked polyisocyanate, and an anionic blocked polyisocyanate having an acid number less than 5 mg KOH/g. The inkjet pre-treatment fluid further includes a liquid vehicle.

Provided are pretreatment compositions, pretreated fabrics, and methods of pretreating fabrics for improved printing quality. Pretreated fabrics include natural fiber fabric having a polymer coating. Methods of pretreating fabrics include spraying natural fiber fabric with a pretreatment composition that comprises one or more latex polymers, a coalescing agent composition, a surfactant composition, an ultraviolet stabilizer composition, an antioxidant composition, and a solvent.

A printing apparatus is provided that effectively prevents the risk of ink bleeding so as to obtain a high-quality print result. The printing apparatus includes an inkjet head that ejects droplets of ink using inkjet technique so as to adhere the ink to the medium, and an ultraviolet light source that radiates ultraviolet light. The ink contains a colorant, an ultraviolet absorbent, a resin, and an aqueous solvent that emulsifies or suspends the resin. The ultraviolet light source irradiates the ink adhered to the medium with ultraviolet light to heat the ink to a temperature lower than a boiling point of the ink and high enough to prevent the ink from bleeding, so that the aqueous solvent is at least in part volatilized and removed from the ink.

A method of textile printing can include ejecting an ink composition onto a fabric substrate and ejecting a blocked polyisocyanate crosslinker onto the fabric substrate. The ink composition can include from 60 wt % to 90 wt % water, from 5 wt % to 30 wt % organic co-solvent, from 1 wt % to 6 wt % pigment, and from 2 wt % to 10 wt % dispersed polymer binder. The method can also include crosslinking the dispersed polymer binder with a deblocked polyisocyanate crosslinker on the fabric substrate.

The present invention provides a pigment dispersant: that is capable of remarkably ameliorating fluidity of a liquid product, such as an ink or a paint, which contains particles of a pigment, such as a black azo pigment, in a dispersed state; that can suppress aggregation of piment particles; that prevents occurrence of foreign substances; and that is capable of producing a colored article excellent in optical density. Provided is a pigment dispersant being a compound represented by the following formula (1).

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wherein R.sub.1 and R.sub.2 each independently represent a group obtained by eliminating one hydrogen atom from an amino group of an amine compound containing a basic nitrogen atom, and R.sub.3 and R.sub.4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or a hydroxy group.

Disclosed is a process for printing on polyester fabric comprising (1) contacting polyester fabric with an aqueous solution comprising (A) 5% to 35% by weight of at least one multivalent cationic salt; (B) 0.1% to 5% by weight of a blocked polyisocyanate crosslinking agent, and (C) 3% to 40% by weight of a waterborne resin, all percentages based on the weight of the aqueous solution; (2) drying the polyester fabric to remove the water from the polyester fabric; and (3) digitally printing the pretreated and coated polyester fabric with a water-based textile ink.

An ink jet ink composition for textile printing contains a crosslinking component having a blocked isocyanate group, tertiary amine, at least one carboxylic acid selected from the group consisting of monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid, a pigment, and water.