In order to solve the problems of high temperature and high pressure reaction and high re-source cost in polyester whitening,TC-B whitening agent was used to whiten polyester at low temperature.The effects of whitening agent concentration,reaction temperature,whitening solution pH,treatment time,and bath ratio on whiteness were investigated,and compared with conventional whitening agent CPS-3 to test its color fastness to soap washing,sweat stains,and sunlight.The results showed that when the reaction temperature was 98℃,the whitening agent concentration was 0.8%(omf),pH was 7,the treatment time was 30 min,and the bath ratio was 10∶1,the whiteness of TC-B whitening polyester fabric was 160,and the whit-ening effect was better than CPS-3 at reaction temperature of 130℃,achieving low-temperature fluorescent whitening of polyester in neutral dyeing bath.
维普
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