In the present invention, an inkjet recording ink can be provided, which
ink can record stably an image with good fastness and elegant-quality
over a long period in any conditions. The ink includes a high-molecular
dispersant, a water-insoluble colorant, water-soluble organic solvent and
water, in which the high-molecular dispersant is a block copolymer
including at least one hydrophobic block and at least one hydrophilic
block, which have been obtained by polymerizing vinyl ethers as monomers,
respectively; and the water-insoluble colorant is a specific pigment.
Further the present invention can provide a inkjet recording method, an
inkjet cartridge, and an inkjet recording system.