PRODUCTION OF SPUNBONDED NONWOVEN FABRIC AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide both an apparatus for producing a spunbonded nonwoven fabric by which the uniform dispensability can be ensured without deteriorating the productivity when producing the spunbonded nonwoven fabric composed of a fine denier and many filaments and a method for producing the nonwoven fabric. SOLUTION: (1) This apparatus for producing a spunbonded nonwoven fabric comprises a rectangular spinning nozzle 1 having a width corresponding to the production width of the nonwoven fabric, a rectangular air sucker 5 having a rectangular inlet capable of directly introducing filament group 2 extruded from the spinning nozzle 1, a rectangular channel 6 installed connectedly to the rectangular air sucker 5 in order and a rectangular channel device 7 for corona electrical charging. (2) The method for producing the spunbonded nonwoven fabric comprises charging the filament group 2 at >=0.01 mA/cm<2> corona discharge current density per unit area with the rectangular device 7 for corona electrical charging when producing the spunbonded nonwoven fabric.