Ultra Chrome Pigmented Ink - These inks produce the same color spectrum and the same maximum black density on glossy papers as dye inks.
The Seventh Ink - The additional "Light Black" ink prodices high quality black and white prints.
Superior Lightfastness - The pigment colourant improves light or gas resistance. Since the pigment colourant exists in the form of a particle, only the surface is affected by light or gas, therefore the colour inside remains vivid. Epson UltraChrome Ink utilizes this property of pigment ink effectively achieving superior lightfastness.