Nonwoven protective fabrics with conductive fiber layer
AssigneeBBA Nonwovens Simpsonville, Inc.
InventorsMark Henry Samuel Berman, Samuel Charles Baer
Life of this patent
Estimating the term…
Abstract
Nonwoven barrier laminates are provided having a desirable balance of properties, including barrier properties, strength, static dissipation, fluid repellency, aesthetics and tactile properties. The nonwoven barrier laminates of the invention generally include outer spunbonded layers, at least one hydrophobic microporous layer between the outer spunbonded layers, and at least one discrete layer of electrically conductive strands. A multiplicity of discrete bond sites bond the various layers of the nonwoven barrier laminate into a coherent fabric.
Claims15
A nonwoven barrier laminate comprising
- (a) outer spunbonded layers;
- (b) at least one hydrophobic microporous layer between the outer spunbonded layers;
- (c) at least one discrete conductive layer comprising electrically conductive strands, the strands being arranged randomly within the conductive layer;
- and
- (d) a multiplicity of discrete bond sites bonding together said layers to form a coherent fabric.
A nonwoven barrier laminate comprising
- (a) outer spunbonded layers comprising substantially continuous thermoplastic filaments;
- (b) at least one hydrophobic microporous layer comprising meltblown microfibers between the outer spunbonded layers;
- (c) at least one discrete conductive layer comprising electrically conductive filaments located between one of said outer spunbond layers and said at least one hydrophobic microporous layer, the conductive filaments being randomly arranged within the conductive layer;
- and
- (d) a multiplicity of discrete point bond sites bonding together said layers to form a coherent fabric.
Dependencies are inferred from the claim text.