| 摘要 |
Provided are a treatment agent for a synthetic fiber that has excellent heat-resistance properties and silicone resin adhesive properties, a manufacturing method for a synthetic fiber filament yarn making use of the treatment agent, and a fiber structure comprising the synthetic fiber filament yarn obtained by the manufacturing method. The treatment agent for the synthetic fiber essentially comprises a smoothing component (A), a polyhydric alcohol fatty acid ester compound having at least one hydroxyl group (B), and an organic sulfonic acid compound (C), wherein the smoothing component (A)comprises a sulfur-containing ester compound (A3), wherein the weight ratio of the smoothing component (A) with respect to a nonvolatile component of the treatment agent is 50-90 wt.%, wherein the weight ratio of the ester compound (B) with respect to the nonvolatile component of the treatment agent is 1-20 wt.%, and wherein the weight ratio of the sulfur-containing ester compound (A3) with respect to the nonvolatile component of the treatment agent is 5-20 wt.%. |
