Abstract: A packing material is constructed with an inner core and an outer circular sheath having compressible and extendible filler yarns which help reduce keystoning of the packing material when bent around corners or curved surfaces. More specifically, the sheath is formed from a plurality of base yarns and a plurality of filler yarns, wherein the yarns are either knit by a circular warp-knitting method or braided. The filler yarns are positioned at predetermined locations within the sheath structure and configured in their construction so as to give the sheath a predetermined geometric configuration when knitted. In the preferred construction, four filler yarns are arranged in a square configuration to give the packing material a generally square configuration. The key feature of the present invention is that the filler yarns comprise yarns which are extendible and compressible in a longitudinal direction.

Abstract: A gasket is disclosed for shielding from electromagnetic emissions and interference (EMI) that exhibits excellent characteristics of recovery, bending, and tangential compression over a wide range of frequencies. The gasket comprises a knitted core of monofilament synthetic polymer yarns, and a circular warp knitted sheath over the monofilament knitted core, with the sheath being sufficiently conductive to provide shielding from electromagnetic interference over a wide range of frequencies.

Abstract: A gasket is disclosed for shielding from electromagnetic emissions and interference (EMI) that exhibits excellent characteristics of recovery, bending, and tangential compression over a wide range of frequencies. The gasket includes a knitted core of monofilament synthetic polymer yarns, and a circular warp knitted sheath over the monofilament knitted core, with the sheath being sufficiently conductive to provide shielding from electromagnetic interference over a wide range of frequencies.