With good environmental emotion, Elemental Chlorine Free ( ECF ) bleaching and Totally Chlorine Free(TCF) ( TCF ) bleaching have being trend of pulp bleaching, and taking over the traditional pulp bleaching processes. 无元素氯漂白(ECF)和全无氯漂白(TCF)技术由于具有良好的环境效应,已成为当今纸浆漂白的发展趋势,正逐步取代传统的漂白技术。