Film-forming agent for cleaning and cleaning treatment method in which said agent is used

Provided are a film-forming agent for cleaning that easily forms a film on the surface of an object to be cleaned and removes stains and that can remove firmly adhered stains, and a cleaning treatmentmethod in which said agent is used. A film-forming agent for cleaning that contains (A) one or more polymers selected from (meth)acrylic resins, vinyl acetate resins, vinyl chloride resins, urethaneresins, polyvinyl alcohol resins, and polyvinyl acetal resins; (B) water; and (C) an organic solvent having a solubility parameter (SP value) of 7.5-11.0, the ratio of (A)/(C) with respect to mass being 30-450. A cleaning treatment method in which said film-forming agent is used. 本申请提供容易在清洁化对象面形成膜以及去除污渍、可以去除牢固附着的污渍的清洁化用膜形成剂以及使用该膜形成剂的清洁化处理方法。种清洁化用膜形成剂以及使用该膜形成剂的清洁化处理方法，所述清洁化用膜形成剂含有(A)成分：选自(甲基)丙烯酸树脂、乙酸乙烯酯树脂、氯乙烯树脂、氨基甲酸酯树脂、聚乙烯醇树脂以及聚乙烯醇缩醛树脂中的1种以上的高分子、(B)成分：水和(C)成分：溶解度参数(SP值)为7.5～11.0的有机溶剂，并且所述(A)成分/所述(C)成分所表示的质量比为30～450。