CLEANING AGENT FOR RAW MATERIAL FEATHER AND DOWN AND CLEANING LIQUID FOR RAW MATERIAL FEATHER AND DOWN

A cleaning agent for raw material feather and down according to the present invention contains component (A) that is composed of one or more compounds selected from among carboxylic acids which contain two or more carboxy groups in each molecule, while having a molecular weight of 1,000 or less and salts of the carboxylic acids, and component (B) that is composed of a nonionic surfactant; and this cleaning agent has a pH of less than 5 at 25 DEG C if diluted with water so as to have a concentration of 0.1% by mass. A cleaning liquid for raw material feather and down according to the present invention contains the above-described component (A), the above-described component (B) and component (C) that is composed of water, while having a pH of less than 5 at 25 DEG C. 本发明的未加工羽毛用洗涤剂含有(A)成分：选自分子内含有2个以上羧基且分子量为1000以下的羧酸和它们的盐中的1种以上，和(B)成分：非离子型表面活性剂，用水稀释至浓度为0.1质量％时的25℃下的pH小于5。本发明的未加工羽毛用洗涤液含有上述(A)成分、上述(B)成分和(C)成分：水，25℃下的pH小于5。