PROBLEM TO BE SOLVED: To provide an oxidation composition for a keratin fiber such as a hair in which stability and handling property is improved.SOLUTION: An oxidation composition for a keratin fiber comprises: (a) at least two kinds of nonionic surfactants including (a-1) a first nonionic surfactant represented by a formula (i): R-(O-Alk)n-OR (i) and (a-2) a second surfactant other than (a-1) the first nonionic surfactant in which preferably total amount of (a) the nonionic surfactant is 0.1-20 mass% of total amount of the composition (b) at least one kind of fatty substance and (c) at least one kind of oxidant which is preferably 0.5-30 mass% of the total amount of the composition.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】安定性及び取り扱いの性質が向上した、毛髪等のケラチン繊維のための酸化組成物を提供すること。【解決手段】(a) (a-1)式(i) R-(O-Alk)n-OR (i)の第1の非イオン性界面活性剤 及び (a-1)第1の非イオン性界面活性剤以外の(a-2)第2の界面活性剤を含む少なくとも2種の非イオン性界面活性剤を含み、好ましくは(a)非イオン性界面活性剤の総量が、組成物の総量に対して0.1から20質量%の範囲である少なくとも2種の非イオン性界面活性剤と、(b)少なくとも1種の脂肪物質と、(c)好ましくは組成物の総量に対して0.5から30質量%の量にある少なくとも1種の酸化剤とを含む、ケラチン繊維のための酸化組成物を提供する。【選択図】なし
