Recycled cardboard is cardboard that has been made with recycled materials, reducing the amount of new materials which had to be used in its manufacture. This form of cardboard is believed to be more environmentally friendly, and many companies that like to engage in environmentally conscious practices use recycled cardboard and other recycled materials in their packaging[packaging?:DCP-H series packaging sample cutter plotter]. It is also possible for consumers to purchase recycled cardboard for their own use.
In the case of recycled cardboard, it is rare to see 100% recycled cardboard. The packaging usually indicates the percentage of recycled material in the cardboard, with a label like “25% recycled” or “25% post-consumer material.” Using purely recycled cardboard could potentially result in a weak recycled cardboard which might fail, because the individual fibers of recycled cardboard grow shorter with each recycling, weakening the bonds which make cardboard strong.