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7309389 Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic medias  
The invention is directed to an electrophotographic toner or developer, powder coating, ink jet ink or an electronic media having an azo colorant prepared by conducting the diazotization of...
7303620 Water-based ink, and image formation method and recorded image using the ink  
A water-based ink that comprises a liquid medium containing water, a water-dispersible coloring material and a surfactant, wherein when the ink is attached onto a recording material, the...
7303619 Composite pigment original, composite pigment, process for producing ink composition, and ink composition  
The present invention provides a composite pigment original having a structure comprising a resin layer and a pigment layer sequentially stacked on a sheet-shaped substrate surface, the pigment...
7300511 Low viscosity, highly pigmented oil based dispersions exhibiting a low relative interfacial tension drop  
Pigment dispersions that when used in printing ink having a relative interfacial tension drop of less than 1.5, and offering an ink viscosity of less than 150 Pa.s, and containing at least 45 wt. %...
7300507 Emulsion ink  
A water-in-oil emulsion ink comprises a water phase and an oil phase, wherein the water phase comprises a carbon black pigment having a pH of less than 6. The emulsion ink maintains stable rheology...
7300506 Ink formulations, print systems, and methods thereof  
Ink formulations, ink jet sets, methods of stabilizing an ink formulation, printer systems, and methods thereof, are disclosed. One exemplary ink formulation, among others, includes a pigment and a...
7300505 Ink-jet recording ink, ink cartridge, recording unit, ink-jet recording method, ink-jet recording apparatus, and method for stabilizing ink ejection  
The present invention provides an ink-jet recording ink containing water, a pigment, a dispersing agent for dispersing the pigment, and an anionic surfactant having a critical micelle concentration...
7300504 Inkjet inks and methods of preparing the same  
Inkjet ink compositions comprising a liquid vehicle and a modified azo pigment are described. The modified azo pigment comprises the reaction product of at least one diazonium reagent and at least...
7297202 Dispersible colorant, method of producing same, aqueous ink using same, ink tank, ink jet recording apparatus, ink jet recording method, and ink jet recorded image  
A dispersible colorant is provided which comprises a colorant and a chargeable resin pseudo fine particle of a size smaller than the size of the colorant being fixed or fused to the colorant,...
7297194 Ink jet ink and ink jet recording method  
Ink jet ink which sufficiently suppresses curling phenomenon of printed matters and satisfies ejection stability, the ink comprising at least water, a colorant, a water-soluble organic compound 1 ...
7296883 Ink composition for ink-jet recording, recording method using same, and record  
It is an object of the present invention to provide an ink jet recording ink composition with good reliability and print quality, a high OD value, and good fixability that affords excellent smear...
7294186 Pigment-based inks for ink-jet printing  
A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet...
7294185 Reaction of carbon black with diazonium salts, resultant carbon black products and their uses  
Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an...
7291211 Aqueous ink, ink tank, ink jet recording apparatus, ink jet recording method, and ink jet recorded image  
An aqueous ink is provided which comprises a dispersible colorant comprising a colorant and chargeable resin pseudo fine particles smaller than the colorant, the colorant and the chargeable resin...
7291209 Ink for silk-screen printing and corresponding printing technique  
The present invention relates to inks for silk-screen printing technique, as well as the corresponding printing technique, designed to bestow upon the reproduction obtained by means of the use of...
7288144 Non-aqueous ink-jet ink composition  
A non-aqueous ink-jet ink composition contains at least a pigment, a solvent, and a dispersing agent. The non-aqueous ink-jet ink composition further contains a chelating agent, which is soluble in...
7288141 Water base ink set for ink-jet recording  
In a water base ink set for ink-jet recording including a pigment-based black ink and a dye-based yellow ink, a first water-soluble dye in which a number of counter ion or ions per one molecule is...
7285508 Glass flake  
The present invention provides a glass flake that is substantially free of boron trioxide (B 2 O 3 ), barium oxide (BaO), zinc oxide (ZnO), and fluorine (F) and has sufficient heat resistance and...
7279511 Opaque ink jet ink composition  
Disclosed are opaque ink jet ink compositions and a method of printing that produce messages having a good contrast on darkly colored substrates, particularly darkly colored glass substrates, and...
7279506 Ink jettable overprint compositions  
Ink jettable, radiation curable overprint compositions containing at least one radiation curable oligomer/monomer, at least one photoinitiator, and at least one surfactant are disclosed. The...
7276112 Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method  
Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle...
7276110 Cyan ink and ink set  
A cyan ink applicable to an ink set has plurality of aqueous inks each containing at least: water; a water-insoluble coloring material; and plurality of water-soluble organic solvents including a...
7273898 Ink jet recording ink  
It is an object of the present invention to provide an ink jet recording ink with excellent storage stability, with which no mold or other microbes will be generated over an extended period. The...
7270699 Ink set for ink-jet recording, ink-jet recording method and ink-jet recording apparatus  
The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of...
7268203 Polymer dispersant having hyperbranched structures  
Polyurethanes having hyperbranched structures, selected from hyperbranched polyurethanes containing at least one pigment affinity group and modified hyperbranched polyurethanes, are used as...
7267717 Aqueous ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus and image forming method  
An object of the present invention is to provide an aqueous ink which can form a more excellent image in bleeding resistance, character quality and print density than the image formed by using an...
7267716 Aqueous ink, image recorded using said aqueous ink and method for forming said image  
An aqueous ink containing at least a water-dispersible coloring material and a water-soluble crystalline component, characterized in that the water-dispersible coloring material forms an aggregate...
7264664 Ink composition, recording method and recorded image utilizing the same, ink set and ink head  
An ink composition is manufactured to contain a surfactant having difference d 1 (σ 10 −γ) which is difference between dynamic surface tension (σ 10 ) of the solution obtained by making 0.1...
7262229 Ink for excimer curing  
A lithographic ink composition that comprises a colorant having absorbency wavelength cutoffs of about 300 nm or longer, acrylate-functional materials, and a photoinitiator that absorbs at a...
7252709 Multifunctional acrylate oligomers as pigment grinding vehicles for radiation-curable ink applications  
The invention detailed herein comprises a family of multifunctional acrylate oligomers which are useful as pigment grinding vehicles for use in radiation-curable coating formulations. The...
7250078 Ink-jet ink and ink-jet recording method  
An ink for ink-jet recording containing: a colorant; and a solvent mixture containing water and solvent A which is not water, wherein solvent A has a surface tension of 25 to 40 mN/m at 25° C.; a...
7250077 Ink composition for inkjet recording, ink cartridge and recording apparatus  
An aggregation stabilizer is further added to an ink composition for inkjet recording which contains a colorant, a humectant, water, and a water-soluble substance that is condensation-polymerized...
7247198 Water base for ink-jet recording and ink-jet recording method  
A water base ink for ink-jet recording to be used for an ink-jet recording apparatus having an ink-jet head comprises a self-dispersing type coloring agent, water, and a water-soluble organic...
7247193 Ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus  
A second ink to be used in combination with a first ink for use in an ink jet recording apparatus having a first opening to which the first ink is supplied, a second opening to which the second ink...
7247192 Water base ink for ink-jet recording  
A water base ink for ink-jet recording is provided, which makes it possible to secure a high recording quality with a sharp image area edge by avoiding any blurring even when recording is performed...
7244297 Water based ink set for ink-jet recording and inkjet recording method  
A water based ink set for ink-jet recording has a yellow ink, a magenta ink and a cyan ink each having at least a coloring agent, water and a water soluble organic solvent. The coloring agent of...
7244296 Water based ink set for ink-jet recording and inkjet recording method  
A water based ink set for ink-jet recording includes a yellow ink, a magenta ink, a cyan ink, a black ink, and a red ink and/or a blue ink each including at least a coloring agent, water and a...
7241334 Sulfonated carbonaceous materials  
The present invention provides methods for the incorporation of sulfonate functional groups onto the surface of carbonaceous compounds and materials, and similarly provides several surface modified...
7241333 Ink-jet recording method, ink-jet ink, ink-jet recording unit, ink cartridge for ink-jet recording and ink-jet recording apparatus  
The present invention provides an ink-jet recording method for forming an image by applying an ink to a recording medium. The ink contains at least water, a colorant and a surfactant. The content...
7232480 Modified carbon black carbon black dispersion liquid and water base ink  
There are provided a carbon black according to which long-term stable storage is possible, clogging is not prone to occurring, and the OD value is high and hence printing with a deep black color is...
7226157 Ink-jet recording process  
Disclosed herein is an ink-jet recording process for conducting recording by ejecting a pigment ink and a reaction liquid containing a polyvalent metal salt from a recording section, in which a...
7220304 Modified carbon black dispersion liquid and water base ink containing the same  
The present invention provides a water-based ink that is used in ink jet printer printing, with a writing instrument, or the like, that has a low settling rate and for which clogging is not prone...
7220303 Pigmented inks having different particle sizes and/or morphologies and distinct chemical dispersions  
An inkjet ink that provides improved print quality on diverse types of print media. The inkjet ink includes a first pigment dispersion and a second pigment dispersion in which the pigments are...
7217315 Pigment-based inks for ink-jet printing  
A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet...
7214725 Radiation-curable lithographic inks from multifunctional acrylate oligomers  
The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for...
7211135 Writable and printable colloidal gold solution  
The present invention relates to an aqueous colloidal gold solution, comprising (a) nano-particular gold particles, (b) a compound having a polar tertiary amino group conjugated via a...
7208032 Printing medium coating solution, ink-jet ink, image forming method, set of printing medium coating solution and ink-jet ink, and ink-jet recording apparatus  
The present invention can sufficiently suppress curling phenomenon of a recorded product and facilitate handling of a printed product produced by using plain paper, in particular. The present...
7204873 Pigment-based inks for ink-jet printing  
A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and magenta...
7198668 Pigment granules  
Pigment granules having an average particle size from 50 to 5000 μm and a BET surface area ≦15 m 2 /g, including as essential constituents (A) from 60 to 90% by weight of at least one...
7198667 Solid pigment preparations containing pigment derivatives and surface-active additives  
Solid pigment preparations containing the following ingredients as substantial components: (A) 60–85 wt. % of at least one organic pigment, (B) 0.1–15 wt. % of at least one pigment derivative...
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