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 AD 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 1830Introduction 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