jetted on the elongated sheet 15 and laminating formed a nanofiber web as stated above the elongated sheet 15 which laminating a nanofiber web the unit 10 located in the front among the electrospinning apparatus 39 s 1 each unit 10 10 u2032 is carried from the unit 10 which is located on the front side by the feed roller 17 operated by the motor 39 s not shown driving and belt 16 driving by rotation of the feed roller 17 to the unit 10 u2032 located on the rear as the process is repeated a nanofiber web is laminating formed on the elongated sheet 15 in this case voc in evaporation state which is occurred when jetting on spinning solution 39 s elongated sheet 15 through the nozzle 12 is discharged to the condenser 31 through the pipe 10 a voc in evaporation state which is emitted to the condenser is condensed and changes to liquefaction state in other words voc in evaporation state which is occurred in the electrospinning apparatus 1 each of the unit 10 10 u2032 and emitted to the condenser 31 is cooled and condensed inside the condenser 31 by cooling methods such as water cooling air cooling or evaporative and changes to liquefaction state thus through the condenser 31 after liquefying condensed voc in liquefaction state it moves the voc in liquefaction state to the distiller 33 and distills it here voc in liquefaction state which is moved to the distiller 33 is successively evaporated according to the boiling point difference by high temperature heat each evaporated voc is separated and classified by solvent types liquefied and emitted in this case voc in liquefaction state which is distilled through.