INK FOR INKJET

摘要

PROBLEM TO BE SOLVED: To provide black ink for inkjet excellent in image durability, hardly causing deterioration of image quality with time such as deviation of color balance with time.

SOLUTION: This black ink for inkjet is obtained by dissolving or dispersing in an aqueous medium at least two dyes having maximum spectral wavelength of spectral absorption in the range of 500-700 nm, and a half width to the maximum wavelength λmax of ≥100 nm and ≤100 nm, respectively. The ozone fading rate constant (kvis) of the ink is ≤5.0×10-2(h-1).

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