| 摘要 |
Improvement in a hydrophilic function and in the strength of a cloth article obtained from a durable hydrophilic fibers is attained by the employment a durable hydrophilic fiber consisting of a fiber made of a thermoplastic resin to which 0.2 to 1.0% by weight of a mixture formed of the following surfactant (A),(B), (C), (D) and (E) is adhered: (A) 10 to 30% by weight of one or more compounds selected out of polyoxyalkylene additive of higher alcohol or higher alkylamine of carbon number 28 to 50, or amide formed of fatty acid of carbon number 30 to 50 and polyamine, (B) 10 to 30% by weight of a polyoxyalkylene additive of amide formed of fatty acid of carbon number 20 to 28 and polyamine, (C) 30 to 50% by weight of an amide formed of higher fatty acid of carbon number 16 to 28, and alkanolamine, (D) 10 to 30% by weight of polyoxyalkylene additive of alkylphosphate salt of carbon number 10 to 22, and (E) 2 to 10% by weight of alkylsulfonate salt of carbon number 12 to 16.
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