An ink jet recording apparatus includes a textile printing ink composition and a liquid ejecting head including a nozzle that ejects the textile printing ink composition, where the textile printing ink composition contains an aqueous dye, an aqueous organic solvent, and water, a content of the aqueous dye with respect to a total amount of the textile printing ink composition is 10% by mass or more, and the liquid ejecting head includes the nozzle that ejects the textile printing ink composition, a pressure chamber to which the textile printing ink composition is supplied, and a circulation channel configured to circulate the textile printing ink composition supplied to the pressure chamber.

A plant and process for printing a sheet fibrous material. The printing plant includes a conveyor belt, a printing station, and a preparing station. The conveyor belt is configured for receiving the sheet fibrous material and guiding along an advancement direction. The printing station is adapted to ink-print at least part of a second side of the sheet fibrous material. The preparing station is configured for modifying the surface hydrophobicity of at least part of the sheet fibrous material. The preparing station includes a plasma treating device configured to define a treatment environment where a portion of the fibrous material is received. The control unit is configured for commanding the movement of the conveyor belt and controlling at least an operative parameter of the plasma treating device as a function of the movement of the conveyor belt.

An ink jet ink composition contains a dye having an azo group, water, and a hindered amine compound having a radical. The dissolved nitrogen concentration of the ink composition is 10 ppm or less.

A method for coloring of cellulose in a supercritical CO.sub.2 medium by an uncharged hydrophobic dye, including at least the steps including of: (i) provision of cellulose fibers, (ii) placing the cellulose fibers in the presence of: a) an effective quantity of at least one uncharged mono organo-urea primer of formula RNHCONH.sub.2, where R represents a linear or branched, saturated or unsaturated, hydrocarbon chain possessing at least 3 carbon atoms, or a saturated or unsaturated cyclic hydrocarbon radical, which is bonded directly or via a methylene or ethylene group to a nitrogen atom, and if appropriate substituted under conditions conducive to the forming of a covalent carbamatic bond between the cellulose and the molecules of the organo-urea; and b) at least one hydrophobic dye in a supercritical CO.sub.2 medium, under conditions conducive to the immobilization of the dye on the fibers.

The present invention relates to a composition for discharge printing of fabric, a discharge printing process for printing said composition to the fabric, the use of the composition for discharge printing and to a fabric treated with the composition in a discharge printing process according to the invention.

Disclosed is an environmentally friendly method that enables the pre-treatment and dyeing processes applied to cellulosic products used in the production of textile products such as towels, bathrobes to be carried out in a single bath with natural, biological preparations.

A binder composition for sublimation-printing natural fibers of the present invention includes: (A) an aqueous solvent; (B) a moisture evaporation retardant selected from urea, glycerine, and a mixture thereof; (C) a (meth)acrylic polymer; (D) a polyurethane; (E) a blocked polyisocyanate; and (F) a paraffin wax.

The present invention relates to a method of dyeing using a salt mixture as an electrolyte with 0.5 to 5.00 GPL of sodium chloride or sodium sulphate and alkali agents I and II to exhaust and fix a dyestuff to a cellulose material in a reactive dyeing. In the method the cellulose fiber is treated with (i) the salt mixture with sodium chloride or sodium sulphate specifically, putting the pre-treated fiber maintained at a pH between 3 and above and an (MLR) maintained between 1:20 and 1:3 at a temperature between 20? C. and above and exhausted for between 15 minutes and above, (ii) the alkali agent I with a pH between 9.5 and above at a temperature between 30? C. and above and stained for between 20 minutes and above (iii) the alkali agent II with a pH between 10.5 and above at a temperature between 30? C. and above and stained for 40 minutes and above.

The present invention refers to a plant (1) for printing, particularly for digitally printing, a sheet fibrous material (T), said printing plant (1) comprising: a conveyor belt (2) configured for receiving the sheet fibrous material (T) and guiding it in the movement along an advancement direction (A); a printing station (6) adapted to ink-print at least part of a second side (T2) of the sheet fibrous material (T); one preparing station (4) configured for modifying the surface hydrophobicity of at least part of the sheet fibrous material (T). The preparing station (4) comprises at least a plasma treating device (11) configured for define a treatment environment where at least a portion of the fibrous material is received and wherein ionized gas is present. The plant (1) comprises a control unit (9) actives on the conveyor belt (2) and on the plasma treating device (11); the control unit (9) being configured for: commanding the movement of the conveyor belt (2), controlling at least an operative parameter of the plasma treating device (11) as function of the movement of the conveyor belt (2). The present invention further refers to a process of printing of sheet fibrous material.

An ink jet ink composition for textile printing including a dye containing copper or chromium and 5% to 30% by mass of a cyclic amide that is liquid at normal temperature and that has a normal boiling point in the range of 190 C. to 260 C., wherein the hue angle h defined by the CIELAB color space on a recording medium ranges from 260 to 310 degrees.