Felt having conductivity gradient
This invention relates to a three-dimensional, conductive felt fabric having an electromagnetic conductivity gradient through its thickness. The present invention also relates to a method for producing such fabrics and their use as broadband microwave absorbers. The present invention relates to a pr...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
06.04.2004
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| Online Access | Get full text |
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| Summary: | This invention relates to a three-dimensional, conductive felt fabric having an electromagnetic conductivity gradient through its thickness. The present invention also relates to a method for producing such fabrics and their use as broadband microwave absorbers.
The present invention relates to a process for making an electromagnetically conductive textile, having a conductivity gradient through the thickness of the fabric, comprising the steps of (a) forming a knit, woven or nonwoven fabric characterized by (i) a variation in fiber surface area per unit of volume, through the thickness of the fabric; or (ii) a variation in susceptibility of the fibers to coating, through the thickness of the fabric; and (b) applying a conductive coating to fibers in the fabric, to create a conductivity gradient through the thickness of the fabric. |
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