PROBLEM TO BE SOLVED: To provide a disinfectant composition and a disinfecting method effectively destroying gram-negative bacteria adhering to textile products.SOLUTION: The disinfectant composition contains a zinc compound, compounds of formula (b1) and (b2), a peroxide and a peracid precursor. In formula (b1), X11 to X14 are each independently a hydrogen atom, alkali metal, alkaline earth metal or cationic ammonium R is a hydrogen atom or hydroxy and n1 is an integer of 0 or 1. In formula (b2), A is alkyl, carboxy, sulfo, amino, hydroxy or a hydrogen atom X21 to X23 are each independently a hydrogen atom, alkali metal, alkaline earth metal or cationic ammonium and n2 is an integer of 0-5.COPYRIGHT: (C)2012,JPO&INPIT【課題】繊維製品に付着したグラム陰性菌を効果的に除菌できる組成物および除菌方法の提供。【解決手段】亜鉛化合物、下記式の化合物、過酸化物、過酸前駆体を含有する組成物。【選択図】なし