PROBLEM TO BE SOLVED: To provide a detergent composition excellent in washing and rinsing while satisfying foaming properties.SOLUTION: The hair detergent composition comprises the following components (A), (B), (C) and (D), wherein the weight ratio [(A)/(B)] of component (A) to component (B) is 0.1 to 1.2, and the weight ratio [(A)/(C)] of component (A) to component (C) is 0.1 to 1.2. Also provided is a cationic group-containing copolymer which is obtained by copolymerizing an ether carboxylic acid type surfactant (A), an ether sulfate type surfactant (B), a betaine type amphoteric surfactant (C) and a monomer mixture containing three kinds of monomers (D).COPYRIGHT: (C)2010,JPO&INPIT【課題】泡性能を満足しつつ、洗浄時及び濯ぎ時に優れた洗浄剤組成物を提供すること。【解決手段】下記成分(A)、(B)、(C)、及び(D)を含有し、成分(A)と成分(B)との重量比[(A)/(B)]が0.1~1.2であり、成分(A)と成分(C)との重量比[(A)/(C)]が0.1~1.2である、毛髪用洗浄剤組成物。(A)エーテルカルボン酸塩型界面活性剤(B)エーテル硫酸塩型界面活性剤(C)ベタイン型両性界面活性剤(D)3種の単量体を含有するモノマー混合物を共重合することにより得られるカチオン性基含有共重合体【選択図】なし
