US Patent 7922035 Tissue stack and dispenser

By controlling the profile of a folded stack when placed into an oval dispenser, it is possible to reduce the compression of the folded stack by the dispenser's sidewall, thereby reducing or eliminating sheet tears when dispensing the sheet-material from the dispenser. In particular, by making the folded stack thicker in the middle and thinner at the edges, as a result of providing a variable width flat stack prior to folding the flat stack, the folded stack will better fit into an oblong or circular dispenser.