| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle capable of overlapping neighboring elliptical spiral patterns without disrupting the elliptical spiral patterns. SOLUTION: In a nozzle (20) for forming approximately elliptical spiral patterns (E) of a viscous fluid material, the nozzle (20) comprises an orifice (24) for forming substantially continuous fibers of the viscous fluid material by discharging the viscous fluid material and a plurality of gas holes (31a to 31f) formed around the orifice (24) for forming approximately elliptical spiral patterns (E) by jetting a gas to the fibers of the viscous fluid material. With respect to virtual lines connecting each gas hole (31a to 31d) and the orifice (24), a plurality of gas holes (31a to 31f) are formed around the orifice (24) in a manner that at least one virtual line on which a plurality of the gas holes (31a to 31f) are not symmetrically arranged is formed. COPYRIGHT: (C)2008,JPO&INPIT |
