A nested rolled paper product is shown in which raised and depressed areas are formed in a sheet. The depressed areas may comprise square shapes, rounded shapes or other geometric shapes that are capable of aligning or nesting in registration when the sheet is rolled to form a reduced diameter rolled...http://www.google.com.au/patents/US6613193?utm_source=gb-gplus-sharePatent US6613193 - Method for forming a nested rolled paper product
