Abstract: An aqueous colored pigment-based ink that is capable of fluorescence, has a pigment colorant in an amount of 1-7 weight %; a non-polymeric fluorophore that when excited by fluorescence-exciting radiation having a peak of at least 200 nm and up to and including 400 nm, exhibits an emission peak of at least 400 nm and up to and including 750 nm, and which non-polymeric fluorophore is present in an amount of 0.1-2 weight %; and an aqueous medium comprising water. This aqueous colored pigment-based ink can be included in an ink set that also includes one or more aqueous colored pigment-based inks that are non-fluorescent. All of these inks can be inkjet printed on non-UV fluorescent substrates to provide images that can be detected when excited as noted above, which images can be provided on documents, lottery tickets, and other security papers.

Abstract: An aqueous colored pigment-based ink that is capable of fluorescence, has a pigment colorant in an amount of 1-7 weight %; a non-polymeric fluorophore that when excited by fluorescence-exciting radiation having a peak of at least 200 nm and up to and including 400 nm, exhibits an emission peak of at least 400 nm and up to and including 750 nm, and which non-polymeric fluorophore is present in an amount of 0.1-2 weight %; and an aqueous medium comprising water. This aqueous colored pigment-based ink can be included in an ink set that also includes one or more aqueous colored pigment-based inks that are non-fluorescent. All of these inks can be applied for example using inkjet printing, onto non-UV fluorescent substrates to provide images that can be detected when excited as noted above, which images can be provided on articles such as security documents, currency, and lottery tickets.

Abstract: An aqueous colored pigment-based ink that is capable of fluorescence, has a pigment colorant in an amount of 1-7 weight %; a non-polymeric fluorophore that when excited by fluorescence-exciting radiation having a peak of at least 200 nm and up to and including 400 nm, exhibits an emission peak of at least 400 nm and up to and including 750 nm, and which non-polymeric fluorophore is present in an amount of 0.1-2 weight %; and an aqueous medium comprising water. This aqueous colored pigment-based ink can be included in an ink set that also includes one or more aqueous colored pigment-based inks that are non-fluorescent. All of these inks can be applied using continuous inkjet (CIJ) printing, onto non-UV fluorescent substrates to provide images that can be detected when excited as noted above, which images can be provided on articles such as security documents, currency, and lottery tickets.

Abstract: A fluorescent colored image can be detected in an image on an article. This fluorescent colored image is obtained from applying an aqueous colored pigment-based ink that is capable of fluorescence, onto a suitable non-UV fluorescent substrate. This aqueous colored pigment-based ink has 1-7 weight % of a pigment colorant; and 0.1-2 weight % of a non-polymeric fluorophore that when excited by fluorescence-exciting radiation having a peak of at least 200 nm and up to and including 400 nm, exhibits an emission peak of at least 400 nm and up to and including 750 nm. This aqueous colored pigment-based ink that is capable of fluorescence can be applied using inkjet printing, onto non-UV fluorescent substrates to provide images that can be detected when excited as noted above, which images can be provided on articles such as security documents, currency, and lottery tickets.

Abstract: An ink set has two or more aqueous pigment-based inks, each of which has 75-95 weight %, a) one or more pigment colorants, and b) one or more water-miscible humectants that are present in a total amount of at least 1 weight % and up to and including 20 weight %, and consist essentially of compounds, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups. The weight % amounts of water and the b) water-miscible humectants are based on the total weight of each aqueous pigment-based ink. The aqueous pigment-based inks in the ink set can be used individual or in combination to provide monochrome or polychrome inkjet-printed images on various ink-receptive media and using various inkjet printing equipment and methods.

Abstract: A flexible inkjet-printed article is prepared by: A?) providing an ink receptive medium having a substrate and an aqueous-based ink-receptive layer. This layer has: (a) a water-soluble salt of a multivalent metal cation; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent and (d) silica particles. At least one aqueous pigment-based ink is deposited directly on the aqueous-based ink-receptive layer, each having: a) an anionically-stabilized pigment colorant; and b) a water-miscible humectant at 1-20 weight %, each having a carbon to oxygen atom ratio of ?1.0:1.0 and only two hydroxy groups. After drying, a functional layer with adhesive composition is formed on the inkjet-printed image and a flexible material is laminated to the functional layer, to form a flexible inkjet printed article.

Abstract: Inkjet printing is carried out to provide monochrome or polychrome inkjet-printed images. An ink-receptive medium is provided with a substrate with an aqueous-based ink-receptive layer disposed thereon. The aqueous-based ink-receptive layer has: (a) one or more water-soluble salts of a multivalent metal cation in an amount of 0.6-49 weight %; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer of a vinyl alcohol and vinyl amine) in a total amount of 0.5-30 weight %; and optionally, (c) a crosslinking agent and (d) silica particles. One or more aqueous pigment-based inks are inkjet printed onto this aqueous-based ink-receptive layer, each ink comprising: a) one or more anionically-stabilized pigment colorants; b) one or more water-miscible humectants that are present in a total amount of 1-20 weight % and each having a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups.

Abstract: An inkjet-printed article has an ink receptive medium with a substrate and an aqueous-based ink-receptive layer disposed thereon. The aqueous-based ink-receptive layer includes: (a) a water-soluble salt of a multivalent metal cation at 0.6-49 weight %; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent or (d) silica particles. The article also has an inkjet-printed image disposed on the aqueous-based ink-receptive layer, provided from one or more aqueous pigment-based inks, each of which has a) an anionically-stabilized pigment colorant; b) one or more water-miscible humectants at a total amount of 1-20 weight %, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups.

Abstract: Inkjet printing is carried out to provide monochrome or polychrome inkjet-printed images. An ink-receptive medium is provided with a substrate with an aqueous-based ink-receptive layer disposed thereon. The aqueous-based ink-receptive layer has: (a) one or more water-soluble salts of a multivalent metal cation in an amount of 0.6-49 weight %; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer of a vinyl alcohol and vinyl amine) in a total amount of 0.5-30 weight %; and optionally, (c) a crosslinking agent and (d) silica particles. One or more aqueous pigment-based inks are inkjet printed onto this aqueous-based ink-receptive layer, each ink comprising: a) one or more anionically-stabilized pigment colorants; b) one or more water-miscible humectants that are present in a total amount of 1-20 weight % and each having a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups.

Abstract: An ink set has two or more aqueous pigment-based inks, each of which has 75-95 weight %, a) one or more pigment colorants, and b) one or more water-miscible humectants that are present in a total amount of at least 1 weight % and up to and including 20 weight %, and consist essentially of compounds, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups. The weight % amounts of water and the b) water-miscible humectants are based on the total weight of each aqueous pigment-based ink. The aqueous pigment-based inks in the ink set can be used individual or in combination to provide monochrome or polychrome inkjet-printed images on various ink-receptive media and using various inkjet printing equipment and methods.

Abstract: A flexible inkjet-printed article is prepared by: A?) providing an ink receptive medium having a substrate and an aqueous-based ink-receptive layer. This layer has: (a) a water-soluble salt of a multivalent metal cation; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent and (d) silica particles. At least one aqueous pigment-based ink is deposited directly on the aqueous-based ink-receptive layer, each having: a) an anionically-stabilized pigment colorant; and b) a water-miscible humectant at 1-20 weight %, each having a carbon to oxygen atom ratio of ?1.0:1.0 and only two hydroxy groups. After drying, a functional layer with adhesive composition is formed on the inkjet-printed image and a flexible material is laminated to the functional layer, to form a flexible inkjet printed article.

Abstract: An inkjet-printed article has an ink receptive medium with a substrate and an aqueous-based ink-receptive layer disposed thereon. The aqueous-based ink-receptive layer includes: (a) a water-soluble salt of a multivalent metal cation at 0.6-49 weight %; (b) one or both of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent or (d) silica particles. The article also has an inkjet-printed image disposed on the aqueous-based ink-receptive layer, provided from one or more aqueous pigment-based inks, each of which has a) an anionically-stabilized pigment colorant; b) one or more water-miscible humectants at a total amount of 1-20 weight %, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups.

Abstract: A flexible inkjet printed article includes an ink receptive medium comprising a substrate and an aqueous-based ink-receptive layer. The aqueous-based ink-receptive layer has: (a) a water-soluble salt of a multivalent metal cation; (b) one or more of a polyvinyl alcohol and a polyvinyl amine (or a copolymer derived from a vinyl alcohol and a vinyl amine) at 0.5-30 weight %; and optionally, (c) a crosslinking agent or (d) silica particles. An inkjet-printed image is disposed on the ink-receptive layer, provided from one or more aqueous pigment-based inks, each having: a) one or more anionically-stabilized pigment colorants; b) one or more water-miscible humectants at 1-20 weight %, each of which has a carbon atom to oxygen atom ratio of at least 1.0:1.0 and only two hydroxy groups. A functional layer comprising an adhesive composition disposed on the inkjet-printed image; and a flexible polymeric film or paper adhered to the functional layer.

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: Colorless coatings can be ink jetted onto part or all of colored images as spaced colorless drops to provide a colorless image over at least 50% of colored areas of the colored image and on a predetermined areal percentage of non-colored areas of the colored image. The aqueous colorless inkjet ink composition has a viscosity of less than 0.005 N-sec at 25° C., and comprises an anionic polyether polyurethane and an anionic acrylic or styrene-acrylic polymer, each having an acid number of at least 50, and such polymeric materials are present in unique amounts. Use of the aqueous colorless inkjet ink composition can be adjusted to provide increased gloss on the colored image in either or both of the colored area or non-colored areas.

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 coatings can be ink jetted onto part or all of colored images as spaced colorless drops to provide a colorless image over at least 50% of colored areas of the colored image and on a predetermined areal percentage of non-colored areas of the colored image. The aqueous colorless inkjet ink composition has a viscosity of less than 0.005 N-sec at 25° C., and comprises an anionic polyether polyurethane and an anionic acrylic or styrene-acrylic polymer, each having an acid number of at least 50, and such polymeric materials are present in unique amounts. Use of the aqueous colorless inkjet ink composition can be adjusted to provide increased gloss on the colored image in either or both of the colored area or non-colored areas.

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.