Optically clear fluid composition

Patent metadata

Field	Value
Publication number	US-10414939-B2
Application number	US-201214404239-A
Country	US
Kind code	B2
Filing date	Jul 31, 2012
Priority date	Jul 31, 2012
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

Examples of optically clear fluid compositions are disclosed herein. In one example, the optically clear fluid composition includes an aqueous vehicle, an anionic polymeric binder dispersed in the aqueous vehicle, and wax particles incorporated in the aqueous vehicle. The anionic polymeric binder has a glass transition temperature (T g ) that is higher than 40 C, and a pH ranging from about 7 to about 11. The wax particles have a particle size ranging from about 25 nm to about 75 nm, and a melting temperature (T m ) ranging from about 100 C to about 150° C. The optically clear fluid composition has a viscosity ranging from about 0.5 centipoise to about 90 centipoise.

First claim

What is claimed is:

1. An optically clear fluid inkjet composition, comprising:
an aqueous vehicle;
an anionic polymeric binder dispersed in the aqueous vehicle, the anionic polymeric binder having a glass transition temperature (T g ) that is higher than 40° C., and a pH ranging from about 7 to about 11, wherein the anionic polymeric binder is present in an amount ranging from about 0.5 wt % to about 17 wt % of a total weight of the optically clear fluid inkjet composition;
an other polymeric binder present in an amount ranging from about 1 wt % to about 3 wt % of a total weight of the optically clear fluid inkjet composition, the other polymeric binder being selected from the group consisting of polyurethane acrylics and polyurethanes; and
wax particles incorporated in the aqueous vehicle, the wax particles having a particle size ranging from about 25 nm to about 75 nm, and a melting temperature (T m ) ranging from about 100° C. to about 150° C.;
wherein the optically clear fluid inkjet composition has a viscosity ranging from about 0.5 centipoise to about 90 centipoise;
and wherein a total amount of polymeric binder in the optically clear fluid inkjet composition, including the anionic polymeric binder and the other polymeric binder, ranges from about 1.5 wt % to about 20 wt % of the total weight of the optically clear fluid inkjet composition.

2. The optically clear fluid inkjet composition as defined in claim 1 wherein the viscosity of the optically clear fluid inkjet composition ranges from about 1 centipoise to about 25 centipoise.

3. The optically clear fluid inkjet composition as defined in claim 1 wherein the aqueous vehicle includes one of i) water or ii) water and a solvent, the solvent being present in the optically clear fluid inkjet composition in an amount ranging from about 2 wt % to about 30 wt % of the total weight of the optically clear fluid inkjet composition.

4. The optically clear fluid inkjet composition as defined in claim 3 wherein the optically clear fluid inkjet composition further includes a surfactant present in an amount ranging from about 0.01 wt % to about 2.5 wt % of the total weight of the optically clear fluid inkjet composition.

5. The optically clear fluid inkjet composition as defined in claim 4 wherein i) the combination of the anionic polymeric binder and the other polymeric binder and ii) the wax particles are present in the optically clear fluid inkjet composition in a ratio of about 3:1.5, and wherein the wax particles produce a textured surface on a medium when the optically clear fluid inkjet composition is printed on the medium.

6. The optically clear fluid inkjet composition as defined in claim 1 wherein the anionic polymeric binder is chosen from acrylic polymers having a T g that is higher than 40° C., waterborne polyurethanes having a T g that is higher than 40° C., and waterborne hybrids of polyurethanes and acrylic polymers where the waterborne hybrids have a T g that is higher than 40° C.

7. The optically clear fluid inkjet composition as defined in claim 1 wherein the anionic polymeric binder has a molecular weight ranging from 2,000 to 200,000, and has an acid number ranging from about 10 to about 200.

8. The optically clear fluid inkjet composition as defined in claim 1 wherein the wax particles are chosen from high density polyethylene wax particles and modified paraffin wax particles.

9. The optically clear fluid inkjet composition as defined in claim 1 wherein:
the wax particles are present in an amount ranging from about 0.3 wt % to about 6 wt % of the total weight of the optically clear fluid inkjet composition.

10. The optically clear fluid inkjet composition as defined in claim 1 wherein the density of the wax particles is about 0.99 g/mL, and the density of the anionic polymeric binder is about 1.11 g/mL.

11. An optically clear fluid inkjet composition, comprising:
an aqueous vehicle including:
a co-solvent combination consisting of a hydantoin glycol, 2-pyrrolidone, and glycereth-26;
a surfactant; and
a balance of water;

an anionic polymeric binder dispersed in the aqueous vehicle, the anionic polymeric binder having a glass transition temperature (T g ) that is higher than 40° C., and a pH ranging from about 7 to about 11, wherein the anionic polymeric binder is present in an amount ranging from about 0.5 wt % to about 17 wt % of a total weight of the optically clear fluid inkjet composition; and
wax particles incorporated in the aqueous vehicle, the wax particles having a particle size ranging from about 25 nm to about 75 nm, and a melting temperature (T m ) ranging from about 100° C. to about 150° C.;
wherein the optically clear fluid inkjet composition has a viscosity ranging from about 0.5 centipoise to about 90 centipoise;
and wherein a total amount of polymeric binder in the optically clear fluid inkjet composition, including the anionic polymeric binder, ranges from about 1 wt % to about 20 wt % of the total weight of the optically clear fluid inkjet composition.

12. The optically clear fluid inkjet composition as defined in claim 11 wherein:
the co-solvent combination is present in an amount of about 6.65 wt % of the total weight of the optically clear fluid inkjet composition; and
the surfactant is present in an amount of about 0.4 wt % of the total weight of the optically clear fluid inkjet composition, and includes a combination of a fluorosurfactant and an alkylphenylethoxylate.

13. The optically clear fluid inkjet composition as defined in claim 11 wherein the anionic polymeric binder, the other polymeric binder, and the wax particles are each present in an amount of about 1.5 wt %.

14. A printed article, comprising:
a print, including:
a recording medium; and
an ink applied to the recording medium; and
the optically clear fluid inkjet composition of claim 1 applied at least on the ink.

15. The printed article as defined in claim 14 wherein the recording medium is chosen from cellulose-based papers, resin-coated papers, papers made from or including one of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and polylactic acid (PLA); and papers including synthetic fibers.

16. A printing method, comprising:
depositing an ink onto a medium to form a print; and
depositing, via inkjet printing, an optically clear fluid inkjet composition onto the print to form a product, the optically clear fluid inkjet composition including:
an aqueous vehicle;
an anionic polymeric binder dispersed in the aqueous vehicle, the anionic polymeric binder having a glass transition temperature (T g ) that is higher than 40° C., and a pH ranging from about 7 to about 11, wherein the anionic polymeric binder is present in an amount ranging from about 0.5 wt % to about 17 wt % of a total weight of the optically clear fluid inkjet composition;
an other polymeric binder present in an amount ranging from about 1 wt % to about 3 wt % of a total weight of the optically clear fluid inkjet composition, the other polymeric binder being selected from the group consisting of polyurethane acrylics and polyurethanes; and
wax particles having a particle size ranging from about 25 nm to about 75 nm, and a melting temperature (T m ) ranging from about 100° C. to about 150° C.;
wherein a total amount of polymeric binder in the optically clear fluid inkjet composition, including the anionic polymeric binder and the other polymeric binder, ranges from about 1.5 wt % to about 20 wt % of the total weight of the optically clear fluid inkjet composition; and

drying the product at a temperature up to

Assignees

• Iu Kai Kong
• Ma Zeying
• Hewlett Packard Development Co

Inventors

• Iu Kai-Kong
• Ma Zeying

Classifications

• C09D11/30 Primary

  Inkjet printing inks · CPC title

• Y10T428/24876

  Intermediate layer contains particulate material [e.g., pigment, etc.] · CPC title

• C09D133/00 Primary

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers · CPC title