The present invention is a fiber-treating agent that contains an ester compound represented by general formula (1): R1-O-((EO)l-(PO)m)-(EO)n-CO-R2 [wherein R1 is a C8-24 hydrocarbon group; R2 is alkyl, alkenyl or cycloalkyl, each having 7 to 23 carbon atoms; EO is ethyleneoxy; PO is propyleneoxy; l and n each represent the average number of moles of added ethyleneoxy, l being a number of 0 to 15 and n being a number of 1 to 20; m represents the average number of moles of added propyleneoxy, and is a number of 0.5 to 20; in the ((EO)l-(PO)m) segment, the (EO) and (PO) units may be added at random or in blocks; and the((EO)l-(PO)m) segment and the (EO)n segment are added in blocks in this order].
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机译：本发明是一种纤维处理剂，其含有通式（1）表示的酯化合物：R 1 -O-（（EO） l -（PO） m ）-（EO） n -CO-R 2 [其中R 1 是C 8-24 烃基; R 2 为烷基，烯基或环烷基，各自具有7至23个碳原子; EO是亚乙氧基; PO是丙氧基; l和n分别表示加成的亚乙基氧基的平均摩尔数，l为0至15，n为1至20; m表示加成的丙氧基的平均摩尔数，为0.5〜20。在（（EO） l -（PO） m ）段中，（EO）和（PO）单元可以随机或成块添加; （（EO） l -（PO） m ）段和（EO） n 段按此顺序添加到块中] 。
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