摘要:
A water-based ink for ink-jet recording and an ink-jet recording method allow the formation of sharp text and lines in high density black, and the formation of a high quality gradation image in which the graininess is reduced in a black image of a medium lightness to a high lightness (e.g., an achromatic image in dark gray to light gray) in ink-jet recording. The water-based ink combination for ink-jet recording comprises a black ink, and a color ink (A) and a color ink (B) that satisfy a color relationship of the following expression (I): about 120°≦|α−β|≦about 240° (I) wherein α is the hue angle of the color ink (A) and β is the hue angle of the color ink (B).
摘要:
A water base ink for ink-jet recording contains self-dispersible carbon black as a coloring agent. The total content of an organic acid having a number of carbon or carbons of 1 to 6 and a salt of the organic acid is not more than 400 ppm. The organic acid having a number of carbon or carbons of 1 to 6 includes monocarboxylic acid, dicarboxylic acid and oxy acid, and the salt of the organic acid includes salts of these acids. When the water base ink is used in an ink-jet recording apparatus, the discharge stability of the ink is improved.
摘要:
The water-based ink set for ink-jet recording includes a magenta ink and a red ink with dynamic surface tensions thereof satisfying the following inequalities (IM), (IIM), (IIIM) and (IVM) σ30M≦about 49 mN/m (IM) σ30M+σ30R≦about 100 mN/m (IIM) wherein σ30M is the dynamic surface tension of the magenta ink at a lifetime of 30 ms and σ30R is the dynamic surface tension of the red ink at a lifetime of 30 ms, σ1000R≧about 36 mN/m (IIIM) σ1000M+σ1000R≧about 70 mN/m (IVM) wherein σ1000M is the dynamic surface tension of the magenta ink at a lifetime of 1,000 ms and σ1000R is the dynamic surface tension of the red ink at a lifetime of 1,000 ms).
摘要:
The water-based ink set for ink-jet recording includes a cyan ink and a blue ink with dynamic surface tensions thereof satisfying the following inequalities (ICB), (IICB), (IIICB) and (IVCB) σ30C≦about 49 mN/m (ICB) σ30C+σ30B≦about 100 mN/m (IICB) wherein σ30C is the dynamic surface tension of the cyan ink at a lifetime of 30 ms and σ30B is the dynamic surface tension of the blue ink at a lifetime of 30 ms, σ1000B≧about 36 mN/m (IIICB) σ1000C+σ1000B≧about 70 mN/m (IVCB) wherein σ1000C is the dynamic surface tension of the cyan ink at a lifetime of 1,000 ms and σ1000B is the dynamic surface tension of the blue ink at a lifetime of 1,000 ms.
摘要:
An ink set for ink-jet recording includes a pigment-based ink containing a negatively chargeable and self-dispersible pigment as a coloring agent and a dye-based ink containing an anionic dye as a coloring agent, and the ink set satisfies the following expression (1): Dci
摘要:
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 not more than 3 and a hue angle h* is 95° to 105° is used, as the dye used in the yellow ink, together with a second water-soluble dye in which a number of counter ion or ions per one molecule is not more than 3 and a hue angle h* is 75° to 85°; or 30° to 70°; or 0° to 30° or 350° to 360°. When the ink set is applied to a general ink-jet printer with a simple maintenance system, the coagulation of black pigment in the printer and the blurring or bleeding on the printing paper are prevented, thereby realizing a satisfactory and complex coloring of the dye-based yellow ink.
摘要:
A water base ink for ink-jet recording is provided, which is excellent in time-dependent stability of ink characteristics, which can be stably jetted over a long period of time, and which makes it possible to perform the high quality recording. The water base ink for ink-jet recording contains a self-dispersing type water-insoluble particulate coloring agent, a compound represented by the following formula (1), a surfactant having a nitrogen atom in a molecule, water, and a water-soluble organic solvent, wherein a surface tension is 30 to 50 mN/m, and a ratio of change of the surface tension after storage at 60° C. for 2 weeks is less than 5%: R1—O—(CH2CH2O)x—SO3Na (1) wherein R1 represents an alkyl group and x is 20 to 30 in the formula (1).
摘要翻译:提供了一种用于喷墨记录的水基油墨,其具有优异的油墨特性的时间依赖性稳定性,其能够在长时间内稳定地喷射,并且这使得可以进行高质量记录。 用于喷墨记录的水基油墨包含自分散型水不溶性颗粒着色剂,由下式(1)表示的化合物,分子中具有氮原子的表面活性剂,水和水溶性 有机溶剂,其中表面张力为30〜50mN / m,并且在60℃下保存2周后的表面张力变化率小于5%:<?在线配方说明=“ 在线公式“end =”lead“?> R 1 -O-(CH 2 CH 2 O 2)x < (1)<β在线公式描述=“在线公式”end =“tail”?>其中R 1表示 式(1)中的烷基,x为20〜30。
摘要:
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 on regular paper and which has satisfactory purge restoration performance. Therefore, no bubble remains in an ink flow passage, and no discharge failure is caused. Further, the discharge operation never becomes unstable. In the water base ink for ink-jet recording, the surface tension is not less than 40 mN/m, and the amount of dissolved oxygen is not more than 4 mg/L.
摘要:
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 each of the black ink and the red ink is a pigment and the coloring agent of each of the yellow ink, the magenta ink and the cyan ink is a water soluble dye. The black ink and the red ink each have a dynamic surface tension at a lifetime of 100 ms of 40 mN/m or more and 45 mN/m or less as measured by a maximum bubble pressure method at 25° C.
摘要:
The water-based ink set for ink-jet recording includes a cyan ink and a blue ink with dynamic surface tensions thereof satisfying the following inequalities (ICB), (IICB), (IIICB) and (IVCB) σ30C≦about 49 mN/m (ICB) σ30C+σ30B≦about 100 mN/m (IICB) wherein σ30C is the dynamic surface tension of the cyan ink at a lifetime of 30 ms and σ30B is the dynamic surface tension of the blue ink at a lifetime of 30 ms, σ1000B≧about 36 mN/m (IIICB) σ1000C+σ1000B≧about 70 mN/m (IVCB) wherein σ1000C is the dynamic surface tension of the cyan ink at a lifetime of 1,000 ms and σ1000B is the dynamic surface tension of the blue ink at a lifetime of 1,000 ms.