Use of transition metal complexes having oxime ligands as bleach catalysts

A process for cleaning textiles comprising contacting said textiles with a cleaning composition, said cleaning composition comprising a transition metal complex having oxime ligands as a bleach catalyst and a peroxide compound, wherein the transition metal complex has the formula (1)

• M(L)nXm (1)
• where
• M is a metal atom selected from the group consisting of Mn, Fe, Co, Ni, Mo, and W,
• L is the oxime ligand of the formula
• R1R2C═N—O(H)z
• R1 is C1-C22-alkyl, C2-C22-alkenyl or C5-C24-aryl,
• R2 is H, C1-C22-alkyl, C2-C22-alkenyl, C5-C24-aryl or
• where z=0 or 1,
• X is a neutral or anion ligand selected from the group consisting of pyridines, imidazolines, methylimidazoles, picolines, lutidines, chloride, bromide, nitrate, perchlorate, citrate, hexafluorophosphate, and anions of organic acids having C1-C22 carbon atoms, n is a number from 2 to 4 and m is a number from 0 to 4.