Application performance of high-temperature resistant brightening agent TF-9021S for polyester
The dosage,optimal setting temperature and baking resistance of high-temperature fluores-cent whitening agent TF-9021S were explored,and the effects of water hardness and pH on the whitening ef-fect were analyzed.The results showed that TF-9021S had good enhancement performance,and the white-ness was better when the temperature was 210℃,and almost no decrease in whiteness after high-tempera-ture baking.At different pH and water hardness,there was not much difference in whiteness,and it had good resistance to sunlight,chlorine bleaching and phenolic yellowing.It was an excellent high-temperature resis-tant polyester whitening agent.
printing and dyeingbrightening agentpolyesterhigh-temperature resistance
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