FIBER TREATMENT AGENT COMPOSITION

To provide a fiber treatment agent composition capable of restoring deformation of a clothing generated by repeated wearing and cleaning, and giving a feeling without having rustle stiffness.SOLUTION: The fiber treatment agent composition includes: (A) an acrylic acid or a (meth)acrylic acid-based polymer (hereinafter referred to as Constituent (A)) having a weight average molecular weight of 5,000 or more and 1,000,000 or less, and a content of a constitutional monomer selected from acrylic acid, a (meth)acrylic acid, and salts thereof of 60% or more of total constitutional monomers; and (B) a compound (herein after referred to as Constituent (B)) containing an alkyleneoxy group, and having an average addition mole number of the same of 20 or more, and a percentage of propyleneoxy groups in total alkyleneoxy groups of 40 mol% or more, where the mass ratio (A)/(B) of a content of the Constituent (A) and a content of the Constituent (B) is 1 or more and 50 or less.SELECTED DRAWING: None 【課題】着用や洗濯の繰り返しによって生じた、衣料の型崩れを回復させ、がさがさとしたごわつきのない風合いを付与することができる繊維処理剤組成物の提供。【解決手段】（Ａ）重量平均分子量が５０００以上１００万以下であり、アクリル酸、メタクリル酸及びこれらの塩から選ばれる構成単量体が全構成単量体の６０モル％以上を占めるアクリル酸又はメタクリル酸系重合体（以下、（Ａ）成分という）、及び（Ｂ）アルキレンオキシ基を含有し、その平均付加モル数が２０以上であって、全アルキレンオキシ基中のプロピレンオキシ基の割合が４０モル％以上である化合物（以下、（Ｂ）成分という）を含有し、（Ａ）成分の含有量と（Ｂ）成分の含有量の質量比（Ａ）／（Ｂ）が１以上５０以下である、繊維処理剤組成物。【選択図】なし