| 摘要 |
PURPOSE:To obtain the title treating agent capable of providing synthetic fiber with stable light resistance without reduction in strength even in exposing synthetic fiber to ultraviolet light for a long period of time, comprising a specific diester compound and a specific nonionic activator in a specific ratio. CONSTITUTION:The objective treating agent comprising (A) 50-80wt.% diester compound prepared from terephthalic acid and a primary alcohol shown by formula II (R1 and R2 are 6-20C alkyl) (e.g. a mixture of 2-nonyltridecanol and 2-undecylpentadecanol) and (B) 20-50wt.% nonionic activator prepared by adding 4-20mol (preferably 7-15mol) ethylene oxide to an alkylphenol (preferably nonylphenol or dedecylphenol). |
