PROBLEM TO BE SOLVED: To provide a composition consisting of a hydrophilic pigment easy to dissolve in a hydrophobic solvent so that densely integrated particles can be made.SOLUTION: The composition has the hydrophilic pigment having a sulfonic acid group and the hydrophobic solvent. The composition is characterized by having at least either a nicotinic acid derivative or a thiamine derivative.COPYRIGHT: (C)2012,JPO&INPIT【課題】高密度に集積した粒子等を作製するため、疎水性溶媒に溶解しやすい親水性色素からなる組成物を提供すること。【解決手段】スルホン酸基を有する親水性色素と疎水性溶媒とを有する組成物において、前記組成物がニコチン酸誘導体、チアミン誘導体のうち少なくともいずれか一方を有することを特徴とする組成物。【選択図】図1
