Oriented fine structures of high speed melt spun PET filaments obtained at 1000-9000m/min
were investigated by Wide-angle X-ray analysis. WAXS pattern for the filaments spun at …

Fine structures of high speed spun PET filaments obtained at take-up velocity, 1000-9000
m/min, were investigated by X-ray analysis. Crystalline density calculated from the …

PET filaments have been produced by the high speed melt spinning method in the range of
take-up velocity 1,000 to 9,000 m/min. With the increase in the velocity, a fiber structure …

The physical and mechanical properties of these filaments were studied as a function of
molecular weight. The following results were obtained.(1) Until the take-up velocity reaches …

Four kinds of ethylene terephthalate/ethylene isophthalate copolymers (PET/PEI, PEI= 0, 2,
5, 10 mol%) were prepared and melt spun at take-up velocities from 1 to 7 km/min …

Poly (ethylene terephthalate)(PET) containing 0.1 wt% sodium stearate (SS) and plain PET
were melt spun at take-up velocities from 1 to 7 km/min, and effect of the nucleating additive …

To investigate the mechanism of fiber structure development for poly (trimethylene
terephthalate)(PTT) in high‐speed spinning, the PTT fiber was spun with take‐up speeds …

High‐speed spinning of high molecular weight poly (ethylene terephthalate)(PET) having an
intrinsic viscosity of 0.98 dL/g was performed at the take‐up velocity range of 2.5–5.5 …

High-speed melt spinning of poldethylene terephthalate)(PET), poly (l, 4-cyclo hexylene
dimethylene terephthalate)(PCT) and ET/CT copolyesters were performed and the structure …

The effects of spinning conditions on fiber properties are not well explained by the fiber
structures because the birefringence, crystallinity, and SAXS patterns are often similar. In …