INK, INK FOR BUBBLE JET, METHOD FOR PRODUCING INK, METHOD FOR INK JET RECORDING AND INK JET RECORDING DEVICE

摘要

PROBLEM TO BE SOLVED: To obtain an ink capable of stably suppressing the occurrence of a scorched part firmly sticking onto a heater, good in discharge characteristics of the ink and capable of stably recording a high-quality image and an ink for Bubble Jet (R) and to provide a method for producing the ink, an ink jet recording device, a recording unit and an ink cartridge. SOLUTION: This ink is characterized as dispersing a pigment having <=500 ppm phosphorus concentration as a contained inorganic compound in a liquid medium comprising water or water and a water-soluble organic solvent.