| 摘要 |
PURPOSE: Aramid multi-filament and a manufacturing method thereof are provided to offer good post-processing property with reduced roll winding, and to prevent powder scattering attached on a roller in a raw cord process. CONSTITUTION: Aramid multi-filament includes phosphoric acid ether alkali metal salt of a chemical formula 1. In the chemical formula 1, R is an alkyl group. N is an integer of 1 ~ 9. M is an alkali metal including Na, K or Li etc. A manufacturing method of the aramid multifilament includes a step for attaching a spin finish on the spun multifilament. The strength of the aramid multifilament is 10~25 g/d. The elongation at break of the aramid multifilament is 2~6%. |
