To obtain the subject granulated material, having high storage stability and a high production ratio of an organic peracid and suitable for clothes by impregnating an oil absorbing carrier with a specific bleaching activator.
This granulated material is obtained by impregnating (B) an oil absorbing carrier (e.g. a hydrophilic amorphous silica) with (A) a bleaching activator composed of an organic peracid precursor which is an organic peracid precursor, reactive with hydrogen peroxide, producing a percarboxylic acid and having ≤50°C melting point without any hydrophilic group in the molecule. The component B is preferably impregnated with (C) a nonionic surfactant together with the component A and, e.g. an acyloxybenzene derivative represented by the formula (R1 is a 1-20C alkyl, a 1-20C alkenyl, etc.; R2 is a group without making the compound soluble in water) is preferably used as the component A.
MIYAMAE YOSHITAKA
SASAKI HISAYA
Next Patent: LIQUID DETERGENT COMPOSITION FOR COATING