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Showing 1 to 1 of 1 for “"Colour fastness"”.
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Application of natural dyes in textile industry and the treatment of dye solutions using electrolytic techniques
… and oxazine dyes showed between 98 to 99% colour removal and the following decreasing order: NB ≈ NR > AO ≈ RS. Strongly electron withdrawing substituents such as nitro group or carbonyl group increases the degradation of the phenothiazine chromophore, whereas the electron donating groups …