Introduction Ts’ai Lun, a member of the court of the later Han Dynasty, is generally credited with developing the first real papermaking process in 105 A.D. ·The “Fourdrinier machine” was the first on the market and produced a homogenous (single-ply) sheet of boxboard in various thicknesses. It was soon joined by the “Cylinder machine” which formed a multi-layered (multi-ply) type of paperboard. These machines were first installed in the United States around 1830.Introduction Ts’ai Lun, a member of the court of the later Han Dynasty, is generally credited with developing the first real papermaking process in 105 A.D. ·The “Fourdrinier machine” was the first on the market and produced a homogenous (single-ply) sheet of boxboard in various thicknesses. It was soon joined by the “Cylinder machine” which formed a multi-layered (multi-ply) type of paperboard. These machines were first installed in the United States around 1830