Aqueous ink for ink-jet recording, ink set, ink cartridge, recording unit, use of the ink in an image-recording apparatus, color-image-recording apparatus, ink-jet recording process and bleeding reducing method

摘要

The present invention provides a pigment ink having carbon black having a dispersant and an ink which can provide high-grade images having a superior rub resistance without the loss of the inherent advantages of the pigment ink and can keep bleeding from occurring when color images are formed. The ink is an ink comprising at least one salt selected from (M1)2SO4, CH3COO(M1), Ph-COO(M1), (M1)NO3, (M1)Cl, (M1)Br, (M1)I, (M1)2SO3 and (M1)2CO3 wherein M1 represents an alkali metal, ammonium or an organic ammonium, and Ph represents a phenyl group, and a carbon black having a dispersant.