Patent ID: 7381296
Filing Date: 2008-06-03
Classification: D21F,Y10S,Y10T

Abstract:
1. A method of forming a tissue sheet in which papermaking fibers are deposited onto a forming fabric and retained on the surface of the forming fabric to form a sheet having a basis weight of from about 10 to about 40 grams per square meter, the forming fabric having a sheet-contacting side and an opposite machine-contacting side, wherein the forming fabric comprises one or more pixilated structural icons on the machine-contacting side of the forming fabric which create a watermark in the sheet during formation, said pixilated structural icons being formed from a multiplicity of spaced-apart elements having a size of from about 0.2 to about 2 millimeters, a spacing of from about 0.2 to about 2 millimeters, and a density of from about 25 to about 500 elements per square centimeter.