| abstract |
An object of the present invention is to provide a treating agent for synthetic fibers and synthetic fibers capable of reducing tar contamination, powder contamination, fluff and the like generated in the weaving process. The processing agent for synthetic fibers of this invention contains a smoothing agent, a nonionic surfactant, and an ionic surfactant. The ionic surfactant is represented by the formula [Formula 1] The aromatic sulfonate and the aliphatic sulfonate shown in the above are characterized in that the mass ratio of the content of the aromatic sulfonate to the content of the aliphatic sulfonate is aromatic sulfonate / aliphatic sulfonate = 1/5 to 1 / 10,000. In said Formula (1), R < 1> is a C1-C18 hydrocarbon group, M < 1> is an alkali metal, an ammonium group, or an organic amine group. |