Gray back cardboard is a type of cardboard that consists of two layers and these two layers are naturally glued together with special wet plates. The use of this type of cardboard is used in box making and carton making as well as various packages.
This cardboard has the ability to print in large numbers and has a very wide application in the packaging industry and is one of the most widely used cardboard on the market. Al-Tusi cardboard is made from recycled fibers and due to sensitivities regarding their application, their use in pharmaceutical packaging is prohibited by law. Another use for cardboard is high-quality graphic printing on it, which is used for book covers, magazines and postcards.