The present disclosure provides an image forming apparatus that improves washing fastness of an image forming portion of a fabric on which a discharge printing ink and a color ink are ejected. An image forming apparatus of the present disclosure includes: a color ink ejector; a discharge printing ink ejector; and a controller, wherein the color ink ejector is configured to eject a color ink containing an aqueous resin emulsion on a fabric, the discharge printing ink ejector is configured to eject a discharge printing ink containing a reducing agent on the fabric, and the controller is configured to control the color ink ejector and the discharge printing ink ejector to eject the color ink on the fabric in a first step, and after the first step, to eject the discharge printing ink on the fabric in a second step.

A processing fluid contains a resin having an amino group and an amine value of from 200 to 1,200 mgKOH/g and a polyvalent metal salt, wherein the proportion of the resin to the processing fluid is from 0.01 to 10 percent by mass and the processing fluid is applied to the fabric.

A processing fluid contains an alcohol having an amino group and a polyvalent metal salt, wherein the processing fluid is applied to fabric.

A fluid set includes a pre-treatment composition, an ink composition, and an overcoat composition. The pre-treatment composition includes a multivalent metal salt and an aqueous vehicle. The ink composition includes a pigment, a polyurethane-based binder, and an aqueous ink vehicle. An overcoat composition includes a blocked polyisocyanate crosslinker and an aqueous overcoat vehicle.

The present invention generally relates to a method for changing the color of a textile material to obtain a vintage and/or worn appearance comprising the steps of contacting said fabric textile material with a nitrate salt, activating the nitrate salt by the addition of an acid catalyst until the desired color change is achieved.

An ink jet recording apparatus includes: an aqueous ink composition; a liquid ejecting head having a nozzle for discharging the aqueous ink composition; and a cap member for protecting the nozzle, where: the aqueous ink composition has a surface tension of 40 mN/m or less; the aqueous ink composition contains a wax having a melting point of 100° C. or more; and the cap member has a coating film containing a silicone defoamer on a contact surface with the nozzle.

The present invention generally relates to a method for changing the color of a textile material to obtain a vintage and/or worn appearance comprising the steps of contacting the fabric textile material with a nitrate salt, activating the nitrate salt by the addition of an acid catalyst until the desired color change is achieved.

The present invention relates generally to compositions and methods for oxidizing or discoloring garments, such as denim. Another aspect relates to providing a cost-effective and environmentally safe alternative to hazardous bleaching agents, such as potassium permanganate.

The present invention relates to a method for reducing or preventing the decomposition of a composition Z comprising Z1 a salt of dithionous acid in an amount ranging from 50 to 100 wt % and optionally Z2 an additive selected from the group consisting of alkali metal carbonate, alkaline earth metal carbonate, alkali metal or alkaline earth metal tripolyphosphate (Na.sub.5P.sub.3O.sub.10), alkali metal or alkaline earth metal sulfite, disulfite or sulfate, dextrose and complexing agents in a combined amount ranging from 0.0001 to 40 wt %, which comprises contacting the components Z1 and optionally Z2 in the solid and/or dry or solvent-dissolved or -suspended state with at least one of the following compounds V in the solid and/or dry or solvent-dissolved or -suspended state, wherein the compounds V are selected from the group consisting of: (a) oxides of the alkali metals lithium, sodium, potassium, rubidium, cesium, or of magnesium, (b) sodium tetrahydroborate (NaBH.sub.4), (c) anhydrous copper(II) sulfate (Cu(SO.sub.4)), phosphorus pentoxide and (d) basic amino acids arginine, lysine, histidine, wherein the solvent for Z1, optionally Z2 and V is practically water-free.

Provided is a method for decolorizing a polyester, the method including exposing adding a decoloring agent to the polyester and then contacting the polyester with superheated water vapor.