| abstract |
The subject of the present invention is to provide a treatment agent for synthetic fibers that can obtain excellent spinnability with excellent fine hair resistance, and can obtain good rubber adhesion when forming a reinforcing wire rope, and a treatment agent for synthetic fibers to which the synthetic fibers are adhered. Treatment agent for synthetic fibers. As a solution, a synthetic fiber treatment agent is provided, which is characterized in that if the total content of the smoothing agent, nonionic surfactant, and ionic surfactant is 100% by mass, it contains 30% by mass. ～70% by mass smoothing agent, 20-60% by mass nonionic surfactant and 0.1-10% by mass ionic surfactant, and the smoothing agent contains specific ester A and specific ester B, and nonionic surfactant It contains a specific polyoxyalkylene derivative C, and the ionic surfactant contains a specific organophosphorus compound D. |