Conductive secondary backings and tufted carpets made therewith

Details Conductive secondary backings and tufted carpets made therewith Conductive secondary backings and tufted carpets made therewith

1977-09-06

1979-02-06

McCamish, Marion E.

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular backing structure or composition

139399, 139420R, 139425R, 139426R, 139426TW, 428253, 428254, 428255, D03D 1502

Patent

active

041385195

ABSTRACT:
Secondary backing for a tufted carpet comprising a fabric with an open construction having an air permeability preferably of at least about 350 cfm of a synthetic yarn and a conductive spun yarn wherein said spun yarn comprises a conductive core fiber having a denier in the range of about 15 to about 25 and a maximum resistance of about 1 .times. 10.sup.10 ohms/centimeter around which core fiber is spun a nonconductive support fiber having a denier in the range of about 3 to 18. The conductive spun yarn can be in the warp and/or weft direction of said backing at an apparent weight density of conductive fiber as low as 0.6 grams/square meter and still dissipate a static charge to a value in kilovolts below about 4.5.

REFERENCES:
patent: 3309259 (1967-03-01), Schwartz
patent: 3475898 (1969-11-01), Magat

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