An adsorbent for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container comprises an ink retaining portion for retaining ink to be supplied...http://www.google.com.hk/patents/US6536884?utm_source=gb-gplus-share專利 US6536884 - Adsorbent for ink jet use, an ink retaining container, an adsorption member using such adsorbent, an ink supply system having such adsorption member, and an ink jet recording apparatus
