Antistatic spunbonded nonwoven fabrics

An antistatic spunbonded nonwoven fabric comprising a plurality of substantially continuous electrically nonconductive nylon filaments randomly disposed throughout the fabric, a plurality of electrically conductive filaments fewer in number than said electrically nonconductive filaments and distributed among said electrically nonconductive filaments randomly throughout said fabric, said electrically conductive filaments comprising multiconstituent filaments having a nonconductive nylon component and a conductive carbon component, and a multiplicity of discrete bond sites bonding together said electrically nonconductive and said electrically conductive filaments to form a coherent fabric.

An antistatic spunbonded nonwoven fabric comprising a plurality of substantially continuous electrically nonconductive nylon filaments randomly disposed throughout the fabric, a plurality of electrically conductive filaments fewer in number than said electrically nonconductive filaments and arranged in spaced apart relation from one another extending generally longitudinally of the fabric, said electrically conductive filaments comprising multiconstituent filaments having a nonconductive nylon component and a conductive carbon component, and a multiplicity of discrete bond sites bonding together said electrically nonconductive and said electrically conductive filaments to form a coherent fabric.

A process for producing a spunbonded nonwoven fabric having antistatic properties comprising directing a plurality of substantially continuous electrically nonconductive filaments formed of a thermoplastic polymer onto a collection surface to form a web, also directing a plurality of electrically conductive filaments among said electrically nonconductive filaments, and forming a multiplicity of discrete bond sites in the fabric to bond together said electrically nonconductive and said electrically conductive filaments to form a coherent fabric.

A process for producing a spunbonded nonwoven fabric having antistatic properties comprising extruding an electrically nonconductive thermoplastic polymer in the form of a plurality of substantially continuous filaments, directing the electrically nonconductive filaments through an attenuator device to attenuate the filaments, discharging the attenuated filaments from the attenuator device onto a collection surface in a random arrangement to form a web of the electrically nonconductive filaments, also directing at least one electrically conductive filament through the attenuator device and discharging it onto the collection surface among the electrically nonconductive filaments and forming a multiplicity of discrete bond sites in the fabric to bond together said electrically nonconductive and said electrically conductive filaments to form a coherent fabric.

A process for producing a spunbonded nonwoven fabric having antistatic properties comprising extruding an electrically nonconductive thermoplastic polymer in the form of a plurality of substantially continuous filaments, directing the electrically nonconductive filaments through an attenuator device to attenuate the filaments, discharging the attenuated filaments from the attenuator device onto a collection surface in a random arrangement to form a web of the electrically nonconductive filaments, also directing a plurality of electrically conductive filament in generally spaced apart relation from one another onto the web of electrically nonconductive filaments and forming a multiplicity of discrete bond sites in the fabric to bond together said electrically nonconductive and said electrically conductive filaments to form a coherent fabric.