Use of screening silicone for protecting the color of artificially colored keratin fibres against the effects of UV radiation

A process for protecting the color of artificially colored keratin fibers against the harmful effects of UV radiation, comprising:

• dyeing keratin fibers with an oxidation dyeing composition comprising at least one oxidation dye precursor and at least one oxidation agent, and
• applying to said keratin fibers, before or after dyeing said keratin fibers or in the presence of said oxidation dyeing composition, a composition comprising at least one organosiloxane bearing at least one ultraviolet absorbing group wherein said at least one organosiloxane is a benzotriazole silicone selected from compounds of formula (1):
• wherein:
• R, which may be identical or different, are selected from C1-C10 alkyl radicals, wherein at least 80%, in numerical terms, of the radicals R are methyl;
• B, which may be identical or different, are selected from radicals R;
• r is an integer ranging from 0 to 50, and s is an integer ranging from 0 to 20;
• and
• A denotes a monovalent radical linked directly to a silicon atom and corresponding to formula below:
• wherein:
• Y, which may be identical or different, are selected from C1-C8 alkyl radicals;
• Z′ represents hydrogen or a C1-C4 alkyl radical;
• n is an integer ranging from 1 to 3;
• and
• p is an integer ranging from 1 to 10.