The aim of the invention is to improve the cleaning power of washing and cleaning agents, especially with regards to bleachable stains, while avoiding any damage to the textile treated with said washing and cleaning agents. This is achieved by an aqueous washing liquid in a device for cleaning textile substrates, containing a plurality of water in-soluble solid particles and a mediator compound, which can produce an oxidizing bleaching agent, in an electrochemical cell using electric voltage in the washing liquid.

The present invention relates to specific acylhydrazone compounds, their use as oxidation catalysts and to a process for removing stains and soil on textiles and hard surfaces. The compounds are substituted with a specific cyclic ammonium group adjacent to the acyl group. Further aspects of the invention are compositions or formulations comprising such compounds.

The present invention concerns a granule comprising Mn(II) oxalate, a protonated salt of a cyclic triamine, a polysaccharide absorbent and a coating agent. In another embodiment the invention concerns a granule comprising a polysaccharide absorbent, a protonated salt of a cyclic triamine and no or very small amounts of Mn. The invention also concerns methods of preparing said granules comprising Mn(II) oxalate, polysaccharide absorbent and such salts or comprising polysaccharide absorbent, such salts and no Mn compound and bleaching formulations comprising the granules and a peroxy compound or a precursor thereof. Granules comprising Mn(II) oxalate, polysaccharide absorbent and the salt or comprising polysaccharide absorbent, the salt and no Mn compound, and formulations comprising these are suitable for use in catalysing oxidation, for example as a component of a dishwasher bleaching composition. The invention further relates to methods of oxidising with the bleaching formulations described herein.