Aqueous resin based inkjet inks

Patent metadata

Field	Value
Publication number	US-2021139733-A1
Application number	US-201917045820-A
Country	US
Kind code	A1
Filing date	Apr 4, 2019
Priority date	Apr 12, 2018
Publication date	May 13, 2021
Grant date	—

Abstract

An aqueous dispersion of a capsule composed of a polymeric shell surrounding a core, wherein the core contains a silicone containing compound. The dispersion is suitable for pre-treatment liquids and inkjet inks in textile printing.

First claim

1 - 15 . (canceled)

16 . An aqueous dispersion of capsules comprising a polymeric shell surrounding a core, wherein the core comprises a silicone compound of Formula I

wherein
R1 to R4 is selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaryl group, and R1 to R4 each comprise 1 to 14 carbon atoms,
the dashed lines represents a silicon-carbon covalent bond, and
n is an integer from 1 to 40.

17 . The aqueous dispersion of claim 16 , wherein the silicone compound further comprises an epoxy group.

18 . The aqueous dispersion of claim 16 , wherein the core also comprises one or more chemical reactants capable of forming a reaction product upon application of heat and/or light.

19 . The aqueous dispersion of claim 18 , wherein the one or more chemical reactants is a thermal curing compound.

20 . The aqueous dispersion of claim 19 , wherein the thermal curing compound is a blocked isocyanate.

21 . The aqueous dispersion of claim 20 , wherein the blocked isocyanate is an oligomeric blocked isocyanate derived from a di-, tri- or tetra-functional isocyanate terminated oligomer selected from the group consisting of an isocyanate terminated oligo-ether, an isocyanate terminated oligo-ester, an isocyanate terminated oligo-carbonate, an isocyanate terminated butadiene oligomer, an isocyanate terminated hydrogenated butadiene, an isocyanate terminated isoprene oligomer, an isocyanate terminated silicone oligomer, and combinations thereof.

22 . The aqueous dispersion of claim 21 , wherein the silicone compound is a poly[dimethylsiloxane-co-(2-(3,4-epoxycyclohexyl)ethyl)methylsiloxane] or poly(dimethylsiloxane), diglycidyl ether terminated.

23 . The aqueous dispersion of claim 16 , wherein the polymeric shell includes a polymer selected from the group consisting of polyureas, polyesters, polycarbonates, polyamides, melamine based polymers, and mixtures thereof.

24 . The aqueous dispersion of claim 21 , wherein the polymeric shell includes a polymer selected from the group consisting of polyureas, polyesters, polycarbonates, polyamides, melamine based polymers, and mixtures thereof.

25 . The aqueous dispersion of claim 16 , wherein a dispersing group is covalently bonded to the polymeric shell and the dispersing group is selected from the group consisting of a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid ester or a salt thereof, and a phosphonic acid or a salt thereof.

26 . The aqueous dispersion of claim 24 , wherein a dispersing group is covalently bonded to the polymeric shell and the dispersing group is selected from the group consisting of a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid ester or a salt thereof, and a phosphonic acid or a salt thereof.

27 . The aqueous dispersion of claim 16 , wherein a dispersing group is covalently bonded to the polymeric shell and is selected from the group consisting of a protonated amine, a protonated nitrogen containing heteroaromatic compound, a quaternized tertiary amine, an N-quaternized heteroaromatic compound, a sulfonium, and a phosphonium.

28 . An aqueous inkjet ink comprising a pigment and the aqueous dispersion of claim 16 .

29 . An aqueous inkjet ink comprising a pigment and the aqueous dispersion of claim 20 .

30 . An aqueous inkjet ink comprising a pigment and the aqueous dispersion of claim 24 .

31 . The aqueous inkjet ink of claim 28 , further comprising a water-soluble organic solvent.

32 . The aqueous inkjet ink of claim 30 , further comprising a water-soluble organic solvent.

33 . An aqueous pre-treatment liquid for textile printing comprising the aqueous dispersion of claim 27 .

34 . A fluid set for textile printing comprising an aqueous pre-treatment liquid comprising a flocculant and the aqueous inkjet ink of claim 28 .

35 . An inkjet printing method including the steps of:
a) jetting the inkjet ink of claim 28 on a substrate; and b) applying heat to the jetted substrate.

Assignees

• Agfa Nv

Inventors

• Loccufier Johan
• Decoster Luc

Classifications

• B41J2/2107

  characterised by the ink properties (supplying ink in a solid state B41J2/17593) · CPC title

• B41J2/01

  Ink jet · CPC title

• C09D11/54 Primary

  Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink · CPC title

• C08L83/04

  Polysiloxanes · CPC title

• C09D11/102 Primary

  containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title