Below is a list of Paper Cores manufacturers from Inver Grove Heights, Minnesota. Paper cores are strong cardboard tubes or cylinders which are used in fabric, adhesive, electrical, paper product and converting industries as a sturdy base around which to wind materials for storage or distribution. Depending on the intended use of the tubes, paper cores can be made from heavy-duty thick cardboard for industries such as fabric and electrical, whereas for toilet paper or paper towels, the cores can be made from thinner, less durable cardboard or paper.