... of length , %±8Number of roll, per 25mm10.0±4.0Hollow ratio, %≥20filling power V1,cm3/g ... 150filling power V2,cm3/g≥50oil content, %0.16±0.04Over-cut fiber content, mg/100g≤40Defect ... 0Deviation rate of length, %±3.0Overlength fiber content, %≤0.5Over-cut fiber content, mg/100g≤2.0Defect content ... .0±2.5Curliness rate, %13.0±2.5180 °C drying shrinkage, %6.5±2.0Oil content, %0.13±0.03Moisture regain, %≤0. ...