The present invention provides an ink jet ink having a magenta color which gives an image excellent in magenta color tone and also excellent in image fastness (lightfastness and gas resistance). The ink jet ink includes a first coloring material that is an anthrapyridone compound having a structure represented...http://www.google.com.au/patents/US7618484?utm_source=gb-gplus-sharePatent US7618484 - Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
