Lever Brothers Company, Division of Conopco, Inc.

Colin W Kerr

John Richard Nicholson

Anthony H Clements

The invention relates to bleach compositions containing, as the bleach, a hydrophobic peroxyacid which is sterically bulky, so that the smallest cross-sectional area of the peroxyacid, defined by multiplying together the two smallest dimensions of the molecule, is from 30 to 80 .ANG..sup.2. Preferred are peroxyacids containing a tertiary alkyl group, a norbornane ring or an adamantone ring. Such peroxyacids are effective for the bleaching of stains, especially hydrophobic stains, with low accompanying dye damage.

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Piacenza, Italy

Colin W Kerr