The application of melanin to fabric improves resistance to chemical pass-through, with possible application in protective garments, shelters, and filtration materials.

An inkjet textile printing ink includes coloring particles and an aqueous medium. The coloring particles each include a core and a shell layer covering the core. The core contains a polyester resin and a dye. The shell layer contains a specific resin with a non-ring-opened oxazoline group and an amide ester group. The polyester resin preferably includes a non-crystalline polyester resin.

A paperless transfer printing method includes the following steps: (a) printing, by a printing machine, aqueous ink onto a transfer printing temporary carrier in a set pattern, wherein a surface of the transfer printing temporary carrier is made of an elastic polymer material and a surface tension of the aqueous ink is less than the critical surface tension of the transfer printing temporary carrier; (b) drying the to-be-transferred pattern on the transfer printing temporary carrier; (c) wetting the transfer printing temporary carrier by using an aqueous surface tension increasing liquid; and (d) separating the aqueous solution or the aqueous dispersion liquid from the transfer printing temporary carrier at a tight-contact position between the transfer printing temporary carrier and the fabric, so that an aqueous ink dye is transferred onto the fiber of the fabric.

A leuco polymer comprising a polyethylenimine and at least one leuco moiety covalently bound to the polyethylenimine, wherein the polyethylenimine comprises three or more amine nitrogen atoms and 1 mol. % or more of amine hydrogen atoms in the polyethylenimine are replaced with a moiety selected from the group consisting of 2-hydroxypropyl, 1-hydroxypropane-2-yl, and polyalkoxy groups. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.

Provided are an inkjet textile printing method including a step of performing direct printing on a textile by an inkjet method with an inkjet ink including an aqueous dispersion of a dye polymer having a structure derived from a dye having a xanthene skeleton; a coloring composition and an inkjet ink including the aqueous dispersion of the dye polymer; an ink cartridge including the inkjet ink filling the ink cartridge; and the dye polymer.

Provided are an inkjet textile printing method including a step of performing direct printing on a textile by an inkjet method with an inkjet ink including an aqueous dispersion of a dye polymer having a structure derived from a dye having a quinophthalone skeleton; a coloring composition and an inkjet ink including the aqueous dispersion of the dye polymer; an ink cartridge including the inkjet ink filling the ink cartridge; and the dye polymer.

The ink contains: an ink agent containing a polymer having a chromophore; and a binder resin. The ink preferably further contains water, an antiseptic agent, and/or a hydrotropic agent. The polymer is preferably in a particulate form. The textile printing method includes discharging droplets of the ink to attach the droplets onto a woven fabric and heating the woven fabric obtained after the discharging. The printed textile of the present invention is obtained by the aforementioned textile printing method. The ink agent for textile of the present invention contains a polymer having a chromophore.

Provided are an inkjet printing method including at least a step of directly printing an inkjet ink containing an aqueous dispersion of a dye polymer having a repeating unit containing a structure derived from a dye on a fabric by an inkjet method; an inkjet ink containing the aqueous dispersion of a dye polymer; an ink cartridge filled with the inkjet ink; and a colored fabric.

A leuco polymer comprising a polymeric carbohydrate and a leuco moiety. The polymeric carbohydrate and the leuco moiety are covalently bound. Methods of making the leuco polymer, laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.

A method of obtaining a leuco polymer, the method comprising the step of reacting a compound with a polymer to form the leuco polymer. The compound includes at least one leuco moiety and at least one electrophilic group. The polymer is comprised of co-monomers of an aryl dicarboxylate, an oxyalkyleneoxy and an oxypolyalkyleneoxy and the polymer comprises at least one moiety selected from the group consisting of hydroxy, sulfhydryl, primary amine and secondary amine. Laundry care compositions comprising the leuco polymer and methods of treating textiles with such laundry care compositions.