Perforating and slitting die sheet, methods of constructing the same and paper product produced therefrom

摘要

A first method of constructing a die sheet includes covering a die surface with a first, spaced pattern of a first photo-resist material and then covering the first pattern with a second, continuous pattern of a second photo-resist material. A chemical removes material from sections not covered by the second pattern and the second pattern is then removed. A chemical removes material from die surface sections not covered by the first pattern. A second method of constructing a die sheet includes covering sections of a die surface with a pattern of photo-resist material having alternating slitting segments and wider perforating segments. A chemical removes material from uncovered sections and completely undercuts the slitting segments to form slitting sections and undercuts the perforating segments to form higher extending perforating sections.