Patent application number | Description | Published |
20090192261 | Ink jet inks having improved corrosion resistance - The present disclosure pertains to an aqueous ink jet ink having improved corrosion resistance comprising: (a) a colorant; (b) an aqueous vehicle; and (b) a certain random hydrophilic polymer additive, wherein the random hydrophilic polymer additive comprises a random copolymer comprised of a hydrophilic component and optional hydrophobic component, wherein the hydrophobic component comprises a monomer selected from the group consisting of methyl acrylate, vinyl acetate, and/or a hydrophobic monomer having a carbon to oxygen ratio of at least about 2.5, and wherein the hydrophobic component has a concentration of less than about 40% by weight, based on the weight of the polymer additive, and the hydrophilic component comprises at least one non-acidic hydrophilic monomer having a carbon to oxygen ratio of less than about 2.5, and a monomer with an ionizable acidic group with a carbon to oxygen ratio of less than about 2.5 present in the amount of at least 10%, based on the weight of the polymer additive; and wherein the ratio of colorant to random hydrophilic polymer additive is about 1:1 to about 1:40. | 07-30-2009 |
20100231671 | PRETREATMENT FOR LOW AND NON-POROUS MEDIA FOR INKJET PRINTING - This invention pertains to inkjet printing on non-porous or low porous media and to a pretreatment solution for the non-porous or low porous media that allows high quality printing thereon. The preferred digitally printed inks are disperse dye or pigmented inks. | 09-16-2010 |
20100289858 | INK JET INKS HAVING IMPROVED CORROSION RESISTANCE FOR USE IN INK JET PRINT HEADS COMPRISING NICKEL OR NICKEL ALLOYS - The present disclosure pertains to an aqueous ink jet ink having improved corrosion resistance for use in an ink jet print head comprising: (a) a colorant; (b) an aqueous vehicle; and (c) a certain random hydrophilic polymer additive, wherein the random hydrophilic polymer additive comprises a random copolymer comprised of a hydrophilic component and an optional hydrophobic component, wherein the hydrophobic component comprises a monomer selected from the group consisting of methyl acrylate and/or vinyl acetate and/or a hydrophobic monomer having a carbon to oxygen ratio of at least about 2.5, and wherein the hydrophobic component has a concentration of less than about 40% by weight, based on the weight of the polymer additive, and the hydrophilic component comprises at least one non-acidic hydrophilic monomer having a carbon to oxygen ratio of less than about 2.5, and a monomer with an ionizable acidic group with a carbon to oxygen ratio of less than about 2.5 present in the amount of at least 10%, based on the weight of the polymer additive; and wherein the ink jet print head comprises an ink flow passage, at least a portion of which is formed of nickel-containing metal such as nickel or nickel alloy. | 11-18-2010 |
20110039028 | INKJET INK WITH SELF DISPERSED PIGMENTS AND POLYURETHANE INK ADDITIVES - The invention provides an ink for inkjet printing, comprising a self-dispersing pigment colorant and certain urea terminated polyurethanes derived from alpha-omega diols and/or polyetherdiols which enhances print quality especially gloss and distinctness of image without compromising jetting performance. | 02-17-2011 |
20120218359 | INKJET INK WITH SELF-DISPERSED PIGMENTS AND HYDROXYL TERMINATED POLYURETHANE INK ADDITIVES - An ink for inkjet is provided for printing, comprising a self-dispersed pigment colorant and certain hydroxyl terminated polyurethanes derived from polyether diois which enhances fastness of the print towards highlighter and linger smudge without compromising jetting performance and storage stability of the ink. | 08-30-2012 |
20130225754 | METHOD OF PREPARING ENCAPSULATED PIGMENT DISPERSIONS WITH MONOMERS WHICH HAVE A LOWER CRITICAL SOLUTION TEMPERATURE - Processes for encapsulating pigment dispersions is described and are used in inkjet inks providing stability with regard to heat aging test conditions and solvent challenges. Prints from these inks have better durability than prints made from dispersions that are not encapsulated. | 08-29-2013 |
20130231439 | METHOD OF PREPARING ENCAPSULATED PIGMENT DISPERSIONS - A process for encapsulating pigment dispersions is provided where a pigment is dispersed with a polymeric dispersant in an aqueous solvent system. An acrylate monomer is added and the resultant mixture is polymerized. Optionally, the acrylate monomer may be emulsified in water with an added surfactant or polymeric dispersant and up to 20% acrylic or other vinyl monomers based on the acrylate may be added to acrylate monomer before polymerization. Such encapsulated pigment dispersions may be used in inkjet inks and are stable to heat, aging Lest conditions, and solvent challenges. Prints from these inks have better durability. | 09-05-2013 |
20130293644 | AQUEOUS INK-JET INKS FOR IMPROVED ADHESION TO PRINT SUBSTRATES - The present disclosure provides novel aqueous ink jet inks containing an aqueous vehicle, a colorant, a first organic co-solvent and a second organic co-solvent. Said ink jet inks demonstrate improved adhesion to print substrates. | 11-07-2013 |
20140011941 | METHOD OF PREPARING ENCAPSULATED PIGMENT DISPERSIONS WHICH INCLUDE POLYURETHANE DISPERSIONS - A process for encapsulating pigment dispersions is provided where a pigment is dispersed with a polymeric dispersant in an aqueous solvent system. An acrylate monomer and a polyurethane dispersion are added and the resultant mixture is polymerized. Optionally, the acrylate monomer/polyurethane mixture may be emulsified in water with an added surfactant or polymeric dispersant and up to 20% acrylic or other vinyl monomers based on the acrylate may be added to the acrylate monomer/polyurethane mixture before polymerization. Such encapsulated pigment dispersions may be used in inkjet inks and are stable to heat, aging test conditions, and solvent challenges. Prints from these inks have better durability. | 01-09-2014 |
20140316061 | AQUEOUS INK-JET INKS CONTAINING BRANCHED POLYURETHANES AS BINDERS - The present disclosure provides novel aqueous ink jet inks containing an aqueous vehicle, a pigment and a branched polyurethane as a binder. | 10-23-2014 |