Patent ID: 6063174
Filing Date: 2000-05-16
Classification: C09D,G02B

Abstract:
An ink-jet recording ink comprising:an aqueous medium,a water soluble dye A having CIE chromaticity wherein x-chromaticity is 0.190 to 0.280 when y-chromaticity is 0.520 in a phosphate buffer solution comprising 60 mM/liter of Na.sub.2 HPO.sub.4.12H.sub.2 O and 16 mM/liter of KH.sub.2 PO.sub.4 at pH 7.5; anda water soluble dye B having 95% or more transmittance of light having a wavelength of 530 nm and 50% or less transmittance of light having a wavelength of 450 nm in a phosphate buffer solution comprising 60 mM/liter of Na.sub.2 HPO.sub.4.12H.sub.2 O and 16 mM/liter of KH.sub.2 PO.sub.4 at pH 7.5.