E. I. du Pont de Nemours and Company
STRETCHABLE PRINTED HEATERS FOR WEARABLES AND OTHER ARTICLES

Abstract:

Heater design plays an important role in determining the stretchability of a heater and this invention provides several configurations that improve stretchability. In some of these configurations the use of bus bars with wavelike form, an undulating conductor, provides good stretchability in all directions. In some configurations, slits can be cut in the substrate to further accommodate stretching and improve breathability.