# US 10,119,043 B2 · Aqueous inkjet inks

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- Number: US 10,119,043 B2
- Document ID: US10119043B2
- Status: Granted
- Kind: B2
- Application number: 15/535,070
- Filed: 2015-12-08
- Published: 2017-11-30
- Granted: 2018-11-06
- Earliest claimed: 2014-12-16
- Assignees: Agfa NV
- Applicants: Agfa NV
- Inventors: Roel De Mondt; Hubertus Van Aert
- Web page: https://patentgrep.com/patent/US10119043B2

## CPC

- C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes
- B41J 2/01: Ink jet
- C09D 11/033: characterised by the solvent
- C09D 11/102: containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D 11/322: Pigment inks
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

An aqueous inkjet ink contains: a) a color pigment; b) an alkoxylated fluorosurfactant; and c) an ethoxylated oligomer having a molecular weight smaller than 400; and has a static surface tension at 25° C. of no more than 28 mN·m; and a viscosity between 5 and 12 mPa·s at 32° C. at a shear rate of 1,000 s−1.

## Claims

### Claim 1

An aqueous inkjet ink comprising:
a color pigment;
an alkoxylated fluorosurfactant; and
an ethoxylated oligomer having an average molecular weight smaller than 400; wherein
the aqueous inkjet ink has a static surface tension at 25° C. of no more than 28 mN·m;
the aqueous inkjet ink has a viscosity between 5 and 12 mPa·s at 32° C. at a shear rate of 1,000 s−1; and
the alkoxylated fluorosurfactant is selected from the group consisting of:

### Claim 2 (depends on 1)

The aqueous inkjet ink according to claim 1, wherein the color pigment is a red pigment selected from the group consisting of C.I. Pigment Red 122, C.I. Pigment Red 254, and mixed crystals thereof.

### Claim 3 (depends on 1)

The aqueous inkjet ink according to claim 1, further comprising a polymer latex binder.

### Claim 4 (depends on 2)

The aqueous inkjet ink according to claim 2, further comprising a polymer latex binder.

### Claim 5 (depends on 3)

The aqueous inkjet ink according to claim 3, wherein the polymer latex binder is a polyurethane based latex.

### Claim 6 (depends on 4)

The aqueous inkjet ink according to claim 4, wherein the polymer latex binder is a polyurethane based latex.

### Claim 7 (depends on 1)

The aqueous inkjet ink according to according to claim 1, further comprising glycerol and/or 1,2-hexanediol.

### Claim 8 (depends on 1)

An aqueous inkjet ink set comprising:
two or more aqueous inkjet inks according to claim 1.

### Claim 9 (depends on 1)

An inkjet printing method comprising the steps of:
jetting one or more aqueous inkjet inks according to claim 1 onto a substrate; and
drying the one or more aqueous inkjet inks jetted on the substrate.

### Claim 10 (depends on 9)

The inkjet printing method according to claim 9, wherein the substrate includes paper.

### Claim 11 (depends on 10)

The inkjet printing method according to claim 10, wherein the paper is impregnated with a thermosetting resin.

### Claim 12 (depends on 10)

The inkjet printing method according to claim 10, wherein the substrate includes an ink receiver layer including an inorganic pigment and a polymer.

### Claim 13 (depends on 11)

The inkjet printing method according to claim 11, wherein the substrate includes an ink receiver layer including an inorganic pigment and a polymer.

### Claim 14 (depends on 9)

The inkjet printing method according to claim 9, wherein the substrate is selected from the group consisting of polyvinyl chloride, polyethylene terephthalate, and polyalkylene.

### Claim 15 (depends on 1)

A decorative laminate comprising:
a substrate; and
one or more aqueous inkjet inks according to claim 1 on the substrate.