摘要:
An ink jet ink contains a polyurethane polymer and a pigment. The polyurethane polymer has units derived from a polyisocyanate, a polyether polyol having no acid group, and a diol having an acid group. The pigment is dispersed using a polymer other than the polyurethane polymer. The ratio of the percentage of the urethane bond in the polyurethane polymer to the percentage of the urea bond in the polyurethane polymer is 85.0/15.0 or more and 98.5/1.5 or less.
摘要:
An ink jet ink contains a pigment and a polyurethane polymer. The polyurethane polymer contains units derived from a polyisocyanate, a polyol, a compound having a carboxy group, and a compound having a sulfo group, and an acid value of the polyurethane polymer is 20 mgKOH/g or more and 100 mgKOH/g or less.
摘要:
To provide an ink jet ink that produces an image having high optical density, scratch resistance, and highlighter resistance, has excellent ink ejection stability, and can reduce image deflection caused by face wetting.The ink jet ink contains a polyurethane polymer and a self-dispersing pigment. The polyurethane polymer has units derived from a polyisocyanate, a polyol having no acid group, and a diol having an acid group. The molar ratio of the percentage of the urethane bond in the polyurethane polymer to the percentage of the urea bond in the polyurethane polymer is 85.0/15.0 or more and 100.0/0 or less.
摘要:
An aqueous ink used together with a black ink containing a self-dispersion pigment, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the self-dispersion pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
摘要:
An inkjet ink contains at least one coloring material selected from the group of C. I. Direct Violet 107, C. I. Acid Red 14, C. I. Acid Red 52, C. I. Acid Red 87, C. I. Acid Red 289 and C. I. Reactive Red 180, and a coloring material including a compound expressed by general formula (I): wherein in the formula (I), each M independently represents hydrogen, an alkali metal, ammonium, or an organic ammonium. The ratio of the content in the inkjet ink of the compound expressed by general formula (I) to the total content of coloring materials in the inkjet ink is in the range of 15.0% by mass or more to 40.0% by mass or less.
摘要:
In an ink set having a plurality of inks, the ink set has at least a pigment ink and a dye ink. The pigment ink contains at least water, a surfactant, a self-dispersion pigment, and a poor medium for self-dispersion pigment and/or a salt; a dynamic surface tension of the pigment ink at a lifetime of 50 milliseconds is higher than 47 mN/m. The dye ink contains at least water, a surfactant and a dye. An ink set is provided which can obtain images having a high image density and a superior bleeding resistance without regard to the types of recording mediums.
摘要:
An ink jet ink providing an image having excellent lightfastness and having sticking resistance and intermittent ejection stability. The ink jet ink is characterized by containing at least a compound represented by the following general formula (I) and a compound represented by the following general formula (II).
摘要:
An aqueous ink to be used together with a pigment ink containing a pigment and a polymer, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
摘要:
An ink having a cyan color is provided which can form images excellent in ozone resistance in such a high level as to exceed anticipation and having a preferable color tone. The ink includes at least two coloring materials of a first coloring material and a second coloring material, wherein the first coloring material is a compound having a copper phthalocyanine skeleton with a specific structure and the second coloring material is a compound having a copper phthalocyanine skeleton with a specific structure that is different from the first coloring material.
摘要:
An object of the present invention is to provide an ink jet black ink by which an image quality comparable to that of a silver halide photograph is obtained with a compatibility between a high fastness and a high image quality when the ink is printed on a recording medium, and which is excellent in optical density and color tone particularly in half tone, and is also excellent in gas resistance. The present invention provides an ink jet black ink comprising a dye and a black pigment, wherein the dye is at least one kind selected from the group consisting of compounds represented by the following formula (I) or salts thereof, and compounds represented by the following formula (II) or salts thereof.