Patent ID: 8877702

Claim:
A detergent composition, comprising (a) a nonionic surfactant represented by the formula (1) [hereinafter, referred to as component (a)], and (b) a sulfuric acid ester salt represented by the formula (2) [hereinafter, referred to as component (b)]: R—O-(EO) m —(PO) n -(EO) m′ —H (1) wherein, R represents a linear or branched, saturated or unsaturated hydrocarbon group having 6 to 24 carbon atoms; EO represents an ethyleneoxy group; PO represents a propyleneoxy group; m represents an average addition mole number ranging from 0.1 to 25; m′ represents an average addition mole number ranging from 0 to 24.9; the total of m and m′ is 0.5 to 25; and n represents an average addition mole number ranging from 0.1 to 10; with the proviso that (EO) m , (PO) n , and (EO) m′ are arranged in a block addition mode in this order; R 1 —O—(PO) x -(EO) y —SO 3 M (2) wherein, R 1 represents a linear or branched, saturated or unsaturated hydrocarbon group having 6 to 24 carbon atoms; PO represents a propyleneoxy group; EO represents an ethyleneoxy group; x represents an average addition mole number ranging from 0.4 to 5; y represents an average addition mole number ranging from 0 to 4, (PO) x and (EO) y are arranged in any addition mode, being either a block addition or a random addition in any order, when y is not 0; and M represents a counter ion to form a salt.