Patent application number | Description | Published |
20090062545 | Trisazo Compound, Ink Composition, Recording Method, and Colored Article - The present invention relates to a trisazo compound represented by the following formula (1) or a salt thereof, | 03-05-2009 |
20100309246 | TRISAZO COMPOUND, INK COMPOSITION, PRINTING METHOD AND COLORED PRODUCT - The present invention relates to a trisazo compound represented by the following formula (1): | 12-09-2010 |
20110050787 | TRISAZO COMPOUND, INK COMPOSITION, RECORDING METHOD AND COLORED BODY - Disclosed is a dye compound for black ink which has high solubility in media composed mainly of water and which is stable even when a high-concentration aqueous solution and ink are stored over a long term. The density of printed images is very high, and even if a high-concentration solution is used for printing, no bronzing occurs in the images, and black recorded images are provided with which all aspects of printed image durability, particularly light resistance and ozone gas resistance, are excellent. Also disclosed is an ink composition thereof. Trisazo compounds represented by general formula (1) or tautomers thereof or salts thereof are used as said dye compound for black ink. | 03-03-2011 |
20110259195 | RIVER WATER UTILIZING FLUE GAS DESULFURIZATION SYSTEM AND HUMIC SUBSTANCE REMOVING METHOD - A river water utilizing flue gas desulfurization system | 10-27-2011 |
20120120148 | COLORING MATTER CONSISTING OF TRISAZO COMPOUND, INK COMPOSITIONS, RECORDING METHOD, AND COLORED BODY - Provided are a coloring matter for black ink which is highly soluble in water-based media, and ink compositions containing the same. A high-concentration aqueous solution and ink that contain the coloring matter are stable even when have been stored for a long period, and can produce printed images having extremely high density. Even when printing is conducted using the high-concentration aqueous solution, no bronzing occurs in the resulting printed images. The ink compositions can produce black recorded images which exhibit various excellent fastnesses, particularly excellent light fastness and ozone gas fastness. The coloring matter consists of at least one substance selected from among trisazo compounds represented by general formula (1), tautomers thereof, and salts of both. In general formula (1), R | 05-17-2012 |
20120202019 | AZO COMPOUNDS, INK COMPOSITIONS, AND COLORED BODIES - Azo compounds represented by general formula (1) or salts thereof are provided as highly water-soluble colorants which have hues of yellow, orange, brown or red, and excellent color development properties and which, when used in various recording processes, particularly in an inkjet recording process, ensure various excellent fastnesses such as light fastness, ozone fastness, and fading balance. Ink compositions containing the colorants are also provided. In general formula (1), R | 08-09-2012 |
20130101811 | INK COMPOSITION, INKJET RECORDING METHOD AND COLORED BODY - A water-based black ink composition which exhibits a low intensity, colorless and neutral black color and provides a black recorded image the printed image of which has high density. The ink composition includes at least one compound represented by formula (1) or a salt thereof and an azo compound having λmax within the range of 550-660 nm. In the formula (1), R | 04-25-2013 |
20130257974 | INK COMPOSITION, INKJET RECORDING METHOD AND COLORED BODY - An aqueous black ink composition that produces a black recorded image that is stable even when stored for a long time period, exhibits a neutral black to gray color with low color saturation and no tinge, has a high printed image density and exhibits excellent fastness properties of the recorded image, particularly ozone-gas resistance. The ink composition contain at least one kind of coloring matter (I), which a coloring matter represented by formula (1) below, a tautomer thereof, or a salt of the coloring matter or the tautomer; at least one kind of coloring matter (II), which is a coloring matter represented by formula (2) below or a salt thereof; and coloring matter (III), which is a coloring matter having an azo group other than coloring matters (I) and (II), or a salt thereof. | 10-03-2013 |
20130288019 | INK COMPOSITION, INKJET RECORDING METHOD, AND COLORED MATERIAL - An aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye which includes at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye which includes at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye which includes at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound. | 10-31-2013 |
20130321523 | AZO COMPOUND, INK COMPOSITION, RECORDING METHOD AND COLORED MATERIAL - A coloring matter which exhibits excellent (ozone) gas resistance, high print density, low color rendering properties, low color saturation, and high-quality black hue when is recorded on a paper only for inkjet exclusive use, i.e., an azo compound represented by formula (1), a tautomer of the azo compound, or a salt of the azo compound or the tautomer; and an ink composition containing the coloring matter, particularly a black ink composition for inkjet recording applications. | 12-05-2013 |