Nonwoven, the method of manufacturing the filter and non-woven fabrics

Non-woven fabric of the present invention, the average fiber diameter is at 5μm or less, a nonwoven fabric comprising thermoplastic resin fibers that fiber diameter cumulative frequency 100nm~200nm occurs more than 3.0%. Further, the method of manufacturing the nonwoven fabric of the present invention comprises a thermoplastic resin, melting the thermoplastic resin composition melt viscosity of 0.1Pa · s~100.0Pa · s at 200 ° C., from a spinning nozzle 10 as the molten resin mass of 9m3~10-4m3 intermittently be dropped, to form a thermoplastic resin fiber by supplying a gas to the molten resin mass obtained by dropping, to integrate the formed thermoplastic resin fibers, a method for producing a nonwoven fabric comprising a.