Patent ID: 7780883

Claim:
A method of producing a fibrous aggregate, comprising: a supplying and discharging step wherein a fiberizable liquid is supplied from a means for storing said fiberizable liquid to a means for discharging said fiberizable liquid via a supplying pipe, and said fiberizable liquid is discharged from said discharging means in the direction of gravity; and a fibers-collecting step wherein fibers are drawn and fiberized by applying an electrical field to said discharged fiberizable liquid and are accumulated directly on a collecting surface of a belt collector while said collecting surface is unidirectionally conveyed to form said fibrous aggregate; wherein said discharging means is carried on a support capable of moving along an elliptical endless track capable of rotationally traveling between a pair of rotating shafts and including two linear motion areas which have moving directions opposite to each other, said fiberizable liquid is discharged from said discharging means while said support is revolved at a constant velocity under a condition that a moving direction of a linear motion area in said endless track conforms to a width direction of said collecting surface, and said fibers discharged from the two linear motion areas are accumulated on the same belt collector.