Meltblown fabric.(Nonwovens)

GE Osmonics Inc has developed a three-dimensional nonwoven of meltblown fibres, for use as a filter medium.

The company from Minnetonka, Minnesota, USA, says the structure includes a mass of essentially continuous, meltblown polymer filaments and an essentially continuous, meltblown polymer filament that traverses and extends through this mass. Within the mass are several layers, each being generally oriented in the longitudinal and latitudinal directions.

The traversing filament tends to be oriented through the depth of the fabric, extending through at least