Aqueous Ink Jet Composition for Textile Printing

Patent metadata

Field	Value
Publication number	US-2026055551-A1
Application number	US-202319102077-A
Country	US
Kind code	A1
Filing date	Aug 1, 2023
Priority date	Aug 11, 2022
Publication date	Feb 26, 2026
Grant date	—

Abstract

Aqueous ink for textile printing comprising a disperse dye, a dispersant and lignin. A manufacturing method of this ink is provided. An inkjet recording method on textile fabric using the aqueous ink comprising a disperse dye, a dispersant and lignin is also provided.

First claim

1 - 13 . (canceled)

14 . An aqueous ink for textile printing comprising a disperse dye, a dispersant, and lignin.

15 . The aqueous ink of claim 14 , wherein the dispersant is a non-ionic polymer.

16 . The aqueous ink of claim 14 , wherein the dispersant is a copolymer of an acrylate and an alkylene oxide.

17 . The aqueous ink of claim 14 , wherein the disperse dye is a mixture of DR 60, DY54, and DB360.

18 . The aqueous ink of claim 16 , wherein the disperse dye is a mixture of DR 60, DY54, and DB360.

19 . The aqueous ink of claim 14 , wherein the amount of lignin is from 0.1 to 5 wt. % with respect to the total weight of the ink.

20 . The aqueous ink of claim 18 , wherein the amount of lignin is from 0.1 to 5 wt. % with respect to the total weight of the ink.

21 . The aqueous ink of claim 14 , further containing a water-soluble organic solvent.

22 . The aqueous ink of claim 18 , further containing a water-soluble organic solvent.

23 . The aqueous ink of claim 14 , further containing an acetylene glycol (alcohol)-based surfactant.

24 . The aqueous ink of claim 18 , further containing an acetylene glycol (alcohol)-based surfactant.

25 . An aqueous inkjet ink set wherein at least one aqueous inkjet ink comprises a disperse dye, a dispersant, and lignin.

26 . The aqueous inkjet ink of claim 25 , wherein the at least one aqueous inkjet ink is a black ink or a cyan ink.

27 . An inkjet recording method comprising the following steps:
a) jetting of an aqueous ink according to claim 14 onto a fabric comprising hydrophobic fibres so as to obtain an image comprising disperse dyes: and b) applying heat to the fabric so as to fix the disperse dye onto the hydrophobic fibres.

28 . An inkjet recording method comprising the following steps:
a) jetting of an aqueous ink according to claim 14 onto a transfer medium so as to obtain an image comprising disperse dye: b) bringing the transfer medium into contact with a fabric comprising hydrophobic fibres; and c) applying heat to the transfer medium and/or the fabric so as to fix the disperse dyestuff onto the hydrophobic fibres of the fabric.

29 . A method of preparing an aqueous ink according to claim 14 , comprising the following steps:
a) preparing a disperse dye dispersion by applying high shear forces or milling onto a mixture comprising water, a disperse dye, a dispersant and lignin: and b) adding water, a water-soluble organic solvent, and a surfactant to the disperse dye dispersion of step a).

30 . A polymer containing fabric comprising a disperse dye, a dispersant, and lignin.

Assignees

• Agfa Nv

Inventors

• Bertels Ellen
• Lingier Sophie

Classifications

• D10B2401/021

  hydrophobic · CPC title

• D06P5/30

  Ink jet printing · CPC title

• D06P5/007

  using non-subliming dyes · CPC title

• D06P1/90

  using dyes dissolved in organic solvents or aqueous emulsions thereof {(D06P1/94 takes precedence)} · CPC title

• D06P1/65118

  Compounds containing hydroxyl groups · CPC title