Browse Prior Art Database

CONDUCTIVE BRUSH FABRIC AND METHOD OF MANUFACTURING

IP.com Disclosure Number: IPCOM000025708D
Original Publication Date: 1987-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 62K

Publishing Venue

Xerox Disclosure Journal

Abstract

A problem of fiber shedding has been observed with woven or knitted pile fabrics made from carbodgraphite fibers. In efforts to circumvent fiber shedding with these types of fabrics, attempts have been made to weave the carbon precursor fiber (e.g. "Preox" fiber) and subsequently carbonize the finished fabric.

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XEROX DISCLOSURE JOURNAL

CONDUCTIVE BRUSH FABRIC AND METHOD OF MANUFACTURING U.S. C1.35513CH Joseph A. Swift

Proposed Classification

Int. C1. G03g 15/00

A problem of fiber shedding has been observed with woven or knitted pile fabrics made from carbodgraphite fibers. In efforts to circumvent fiber shedding with these types of fabrics, attempts have been made to weave the carbon precursor fiber (e.g. "Preox" fiber) and subsequently carbonize the finished fabric.

It is proposed that carbon fiber, pile fabrics can be manufactured most effectively by weaving the stabilized precursor fiber as yarns into the desired fabric configurations and then carbonizing the finished fabric to yield the resultant carbon fiber properties. This approach has the advantage that these precursor yarns are, for all practical purposes, textile yarns. Therefore, they handle and process via conventional methods, thereby avoiding the difficulties of breakage during weaving.

Since backing or warp yarns must withstand high (i.e. 300 - 700 "C) temperatures, it is further proposed to use Nomex (trademark of E. I. Dupont) Kelvar (trademark of E. I. Dupont) or PbI (trademark of Celanese) fibers. Specifically, it is proposed to use low filament count Kelvar yarns to weave the backing or warp portion of the woven fabric. Post weaving carbonization is employed to convert the now high quality, plush pile fabric into its electroconductive or semiconductive counterpart.

Volume 12 Number 3 May/June 1987 14...