Patent ID: 6050676
Filing Date: 2000-04-18
Classification: B41J

Abstract:
A color ink jet recording method for recording a desired color image on a recording medium, comprising the steps of:providing a black ink and a plurality of color inks having a higher permeability against said recording medium than that of said black ink, wherein each of said black ink and said color inks has a surface tension of 40 dyn/cm or less; the surface tension of said black ink is greater than that of each of said color inks; and each of said black ink and said color inks contains a nonionic surface-active agent comprising acetylene glycol added with ethylene oxide; andperforming recording by forming an image on said recording medium, said image having a plurality of recorded regions (a) formed from said black ink and a plurality of recorded regions (b) formed from each of said color inks, wherein said recorded regions (a) and said recorded regions (b) are adjacent to each other.