Ink and ink jet recording method and apparatus using the same.

摘要

An object of the present invention is to provide an ink, and ink jet recording method and apparatus using the ink which has excellent dispersion stability, discharge stability and recovery properties, and which can be kept in the weak alkali region even if it contains carbon black with low pH, which is generally considered to be difficult to handle and which can obtain a high-density image. The ink contains acid carbon black having a volatile content within the range of 3.5 to 8 % by weight, and a water-soluble resin having a weight average molecular weight within the range of 3,000 to 30,000, both of which are dissolved in an aqueous liquid medium, and a compound represented by the following formula (I), wherein the ratio by weight between the acid carbon black and the water-soluble resin is within the range of 3 : 1 to 10 : 1. R1R2NCONHCH2CH2OH (I> wherein R1 and R2 each is hydrogen or CnH2nOH, n is 2 or 3, with the proviso that R1 and R2 are not simultaneously hydrogen.