| http://www.w3.org/ns/prov#value | - These direct colouring materials may in particular then be selected from nitro, azo or anthraquinone colouring materials, neutral, cationic or anionic colouring materials in a weight proportion of about 0.001 to 20% and preferably from 0.01 to 10% of the total weight of the composition. [0136] The dye composition may also more particularly contain at least one surfactant, and preferably a non
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