The primary material used in the production of corrugated cardboard boxes is paperboard. Paperboard is a thick, sturdy type of paper that is made from recycled paper fibers. The paperboard used in the production of corrugated cardboard boxes is typically composed of three layers:
- The linerboard: This is the outermost layer of the paperboard, which is typically made from high-quality, virgin fibers. The linerboard is the surface of the box that is printed on and is also responsible for providing the box with its strength and rigidity.
- The medium: This is the layer of fluted paper that is sandwiched between the two layers of linerboard. The medium is responsible for providing the corrugated cardboard with its shock-absorbing properties and helps to protect the contents of the box during transportation.
- The inner liner: This is the layer of paperboard that lines the inside of the box. It helps to protect the contents of the box from moisture and other environmental factors.
In addition to paperboard, other materials may be used to reinforce the strength and durability of corrugated cardboard boxes. For example, boxes used for heavy or fragile items may be reinforced with additional layers of paperboard or with other materials such as plastic or metal. Additionally, boxes may be coated with a layer of wax or other moisture-resistant material to protect the contents from moisture damage. Overall, the specific materials used in the production of corrugated cardboard boxes will depend on the intended use of the box and the requirements of the customer.
