摘要:
The present invention provides an ink set for ink jet recording using at least two kinds of liquids. The first liquid contains at least a colorant, a water soluble solvent and water, and the second liquid contains at least a compound represented by the following general formula (1), a water soluble solvent and water. The present invention also provides an ink jet recording apparatus comprising a recording head from which the ink set for ink jet recording is ejected, and an ink jet recording method by which an image is formed by applying the first and second liquids on a recording medium so as to contact each other
摘要:
An ink set for ink jet using at least 3 or more of liquids, wherein the first liquid contains a colorant, a water soluble solvent and water, the second liquid contains a coagulant which coagulates components constituting the first liquid, a water soluble solvent and water, and the third liquid contains a compound capable of forming a chelate structure with the coagulant in the second liquid, a water soluble solvent and water; an ink jet recording method using the ink set; and an ink jet recording apparatus equipped with a recording head which injects the fore-mentioned ink set for ink jet from the recording head.
摘要:
The invention provides a treatment liquid for ink jet, which includes at least an organic acid having a pKa value of 4.5 or less, a nonionic substance, and water, wherein: (I) the treatment liquid has a pH value of 1.5 to 5.5, (II) the nonionic substance has a weight-average molecular weight of 300 or more but less than 5,000, and (III) a difference in solubility parameter (SP value) between a fundamental skeleton part of the organic acid excluding its acid group and the nonionic substance is 0.01 to 0.75.
摘要:
It is an object to provide a liquid composition for ink jet which contains at least an organic acid having an acid dissociation constant pKa of 4.5 or less, a water-soluble solvent, and water, further comprising at least one of compounds selected from the following group, and this is utilized for an ink set for ink jet, an ink jet recording method and an ink jet recording apparatus, (a): a polyvalent metallic salt having an amount of addition to the organic acid which is equal to or more than 0.01 and is less than 1 in a mole ratio (the polyvalent metallic salt/organic acid); and (b): an organic amine compound having an amount of addition to the organic acid which is equal to or more than 0.1 and is equal to or less than 0.9 in a mole ratio (an organic amine compound/organic acid).
摘要:
The invention provides an ink jet recording method which includes ejecting an ink set. The ink set includes a first liquid which includes a colorant, a water soluble solvent and water, and a second liquid which includes a coagulating agent, a water soluble solvent and water. Recording in a double sided print mode and recording in a single sided print mode are possible. The following Expression (1) is satisfied. 0.01
摘要:
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 time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not higher than 7.