A water dispersion of gel particles, in which the gel particles having a three-dimensional crosslinked structure including at least one of Polymer Structure (1) or Polymer Structure (2), having a hydrophilic group and a polymerizable group, and including photopolymerization initiators are dispersed in water, a method of producing the water dispersion, and an image forming method using the water dispersion are provided. P.sup.1 and P.sup.2 represent a polymer chain consisting of polyester and the like and having a number-average molecular weight of 500 or greater, Z.sup.11 represents a (n.sub.1+1)-valent group, Z.sup.12 represents a (m.sub.1+1)-valent group, m.sub.1, n.sub.1 and n.sub.2 each represent an integer of 1 or greater, X.sup.1 represents a single bond, a —CH.sub.2— group, or a —NH— group, Z.sup.21 represents a (n.sub.2+1)-valent group, R.sup.1 represents a hydrocarbon group that may include a hetero atom.

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A water dispersion of gel particles, in which the gel particles having a three-dimensional crosslinked structure including at least one of Polymer Structure (1) or Polymer Structure (2), having a hydrophilic group and a polymerizable group, and including photopolymerization initiators are dispersed in water, a method of producing the water dispersion, and an image forming method using the water dispersion are provided. P.sup.1 and P.sup.2 represent a polymer chain consisting of polyester and the like and having a number-average molecular weight of 500 or greater, Z.sup.11 represents a (n.sub.1+1)-valent group, Z.sup.12 represents a (m.sub.1+1)-valent group, m.sub.1, n.sub.1 and n.sub.2 each represent an integer of 1 or greater, X.sup.1 represents a single bond, a —CH.sub.2— group, or a —NH— group, Z.sup.21 represents a (n.sub.2+1)-valent group, R.sup.1 represents a hydrocarbon group that may include a hetero atom.

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A metallic nanoparticle composition includes metallic nanoparticles and a non-aqueous polar protic solvent. The non-aqueous polar protic solvent has two hydroxyl groups, a boiling point of at least 280° C. at 760 mm Hg, and a viscosity in a range of 45 cP to 65 cP at 20° C. Polyvinylpyrrolidone (PVP) is present on the metallic nanoparticle surfaces. A concentration of metals in the metallic nanoparticle composition is in a range of 60 wt% to 90 wt% and a concentration, in aggregate, of solvents having a boiling point of less than 280° C. at 760 mm Hg in the metallic nanoparticle composition does not exceed 3 wt%.

A metallic nanoparticle composition includes metallic nanoparticles and a non-aqueous polar protic solvent. The non-aqueous polar protic solvent has two hydroxyl groups, a boiling point of at least 280° C. at 760 mm Hg, and a viscosity in a range of 45 cP to 65 cP at 20° C. Polyvinylpyrrolidone (PVP) is present on the metallic nanoparticle surfaces. A concentration of metals in the metallic nanoparticle composition is in a range of 60 wt% to 90 wt% and a concentration, in aggregate, of solvents having a boiling point of less than 280° C. at 760 mm Hg in the metallic nanoparticle composition does not exceed 3 wt%.

The present invention provides novel anionic modified rosin ester resins having a high BRC content, up to 100% BRC. The resins of the present invention are useful as emulsion, dispersion, or solution resins. High BRC content pigment grind vehicles, coatings, and finished inks can be prepared using the resins of the present invention. Advantageously, the finished inks of the present invention have equal to or superior properties compared to current commercially available inks sold as sustainable products, but having little to no BRC content. The present invention represents a significant step towards developing sustainable inks and coatings that are better for the environment.

The present invention provides novel anionic modified rosin ester resins having a high BRC content, up to 100% BRC. The resins of the present invention are useful as emulsion, dispersion, or solution resins. High BRC content pigment grind vehicles, coatings, and finished inks can be prepared using the resins of the present invention. Advantageously, the finished inks of the present invention have equal to or superior properties compared to current commercially available inks sold as sustainable products, but having little to no BRC content. The present invention represents a significant step towards developing sustainable inks and coatings that are better for the environment.

A decorative material is designed with excellent visual effect and a bright pattern layer on a base material, wherein the layer has at least a first and second bright ink layer, the first and second bright ink layer satisfy the following relationship (A) or (B), each bright ink layer is provided on at least part of the base material when the decorative material is viewed in a plan view, and the first layer has a region overlapping and a region that not overlapping the second layer, and the second layer has a region overlapping and a region not overlapping the first layer. (A) The first bright ink layer contains a first bright pigment, and the second bright ink layer contains a different second bright pigment. (B) The first and second bright ink layer contain bright pigments, and the first layer pigment content is different from the second layer pigment content.

A decorative material is designed with excellent visual effect and a bright pattern layer on a base material, wherein the layer has at least a first and second bright ink layer, the first and second bright ink layer satisfy the following relationship (A) or (B), each bright ink layer is provided on at least part of the base material when the decorative material is viewed in a plan view, and the first layer has a region overlapping and a region that not overlapping the second layer, and the second layer has a region overlapping and a region not overlapping the first layer. (A) The first bright ink layer contains a first bright pigment, and the second bright ink layer contains a different second bright pigment. (B) The first and second bright ink layer contain bright pigments, and the first layer pigment content is different from the second layer pigment content.

3D printable ink compositions for forming objects, films and coatings are provided. Also provided are methods of printing the ink compositions and methods for making the ink compositions. The ink compositions include an elastic polymer binder and may have high loadings of solid particles.

3D printable ink compositions for forming objects, films and coatings are provided. Also provided are methods of printing the ink compositions and methods for making the ink compositions. The ink compositions include an elastic polymer binder and may have high loadings of solid particles.