Abstract
The effect of various amounts (0·5–1·2 owf) of two benzotriazole (Tinuvin P and Tinuvin 320) and one benzophenone (Ultrafast 800) type UV-absorbers applied directly in the dyeing of polyester fibres with CI Disperse Yellow 42 at various depths (0·5, 1·0 and 2·0% owf), or by after-treatment of the dyed fibre, was studied. Combinations of Tinuvin 320 with various amounts of an antioxidant (BHT) in the dye liquor were also used and results compared.
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