One or more substrates may be coiled into one or more coils in such a way that adjacent turns of the coils do not touch one another. The one or more coiled substrates are placed in a treatment chamber where substantially an entire surface of the one or more coiled substrates may be treated with a surface...http://www.google.ca/patents/US7115304?utm_source=gb-gplus-sharePatent US7115304 - High throughput surface treatment on coiled flexible substrates
