Abstract: Colorless or colored coatings can be ink jetted onto a substrate using an aqueous particle-free inkjet ink composition that has a viscosity of less than 5 centipoises, and that includes a combination of an anionic polyether polyurethane and an anionic acrylic polymer or anionic styrene-acrylic polymer, in a total amount of less than or equal to 20 weight %. The composition can be colorless (free of colorants) or it can contain a suitable colorant to provide a color image. The composition also includes a defoamer that has a hydrophilic-lipophilic balance value of at least 3 and up to and including 5, and which is present in an amount of at least 0.15 weight % and up to and including 1 weight %. Such composition can be used in inkjet printing methods including recirculation apparatus and methods, and can be provided as part of an ink set.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. This aqueous organic pigment dispersion can be combined with a humectant to provide an aqueous green inkjet ink composition. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. The aqueous green inkjet ink compositions can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. This dispersion can be used to prepare aqueous green inkjet ink compositions that can be used in various inkjet printing methods.

Abstract: Colorless or colored coatings can be ink jetted onto a substrate using an aqueous particle-free inkjet ink composition that has a viscosity of less than 5 centipoises, and that includes a combination of an anionic polyether polyurethane and an anionic acrylic polymer or anionic styrene-acrylic polymer, in a total amount of less than or equal to 20 weight %. The composition can be colorless (free of colorants) or it can contain a suitable colorant to provide a color image. The composition also includes a defoamer that has a hydrophilic-lipophilic balance value of at least 3 and up to and including 5, and which is present in an amount of at least 0.15 weight % and up to and including 1 weight %. Such composition can be used in inkjet printing methods including recirculation apparatus and methods, and can be provided as part of an ink set.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. This dispersion can be used to prepare aqueous green inkjet ink compositions that can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. This aqueous organic pigment dispersion can be combined with a humectant to provide an aqueous green inkjet ink composition. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. The aqueous green inkjet ink compositions can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. This dispersion can be used to prepare aqueous green inkjet ink compositions that can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. This aqueous organic pigment dispersion can be combined with a humectant to provide an aqueous green inkjet ink composition. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. The aqueous green inkjet ink compositions can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. This dispersion can be used to prepare aqueous green inkjet ink compositions that can be used in various inkjet printing methods.

Abstract: An aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment. It also includes an organic pigment dispersant at 40 weight % to 100 weight %, based on the sum of the weights of the organic pigments. This aqueous organic pigment dispersion can be combined with a humectant to provide an aqueous green inkjet ink composition. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm. The aqueous green inkjet ink compositions can be used in various inkjet printing methods.

Abstract: Aqueous green inkjet ink compositions are prepared from aqueous organic pigment dispersions for use in various inkjet printing methods. In particular, these methods provide a green image or expanded color gamut for other inkjet printed colors. The aqueous organic pigment dispersion contains a green copper phthalocyanine pigment and an azo-coupled ?-ketoamide pigment and an organic pigment dispersant. The weight ratio of the green copper phthalocyanine pigment to the azo-coupled ?-ketoamide pigment is from 1:1 to 10:1. The median particle diameter of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment is less than 85 nm. At least 95% of the total particles of each of the green copper phthalocyanine pigment and the azo-coupled ?-ketoamide pigment have a particle diameter of less than 150 nm.