abstract |
Process for the production of continuous polyester filament yarn for technical use from a polymer of which more than 90% of the chains consist of ethylene terephthalate units, in a single-stage spinning process, the polymer has a relative viscosity (ETArel) of 2.04 to 2.60, a crystallinity of 5% to 16% and a yarn winding speed of greater than 6000 m / min. |