Device and method for longitudinally folding a stack of webs

8:

• A system for folding a sheet material comprising:
• a driver for pulling a substantially continuous sheet material along a sheet path;
• a first folding board positioned in said sheet path and adapted for forming a first longitudinal fold in said sheet material;
• a first nip positioned within said sheet path prior to the formation of a second fold and wherein the sheet material is directed through said first nip, said first nip having a nip pressure and positioned proximate to a second folding operation;
• a second folding board positioned in said sheet path and adapted for forming a second longitudinal fold in said sheet material.

20:

• A method of forming a multi-folded sheet comprising:
• providing a substantially continuous sheet material;
• performing a first folding operation and forming a first longitudinal fold in said sheet material;
• drawing the folded sheet material through a first pressurized nip and wherein said first fold passes through said first nip;
• performing a second folding operation by drawing said folded sheet material over a folding board and forming a second longitudinal fold and a multi-folded sheet, and wherein said first pressurized nip is positioned proximate second folding operation.