Made from wood pulp fiber, paper cores can be combined with a variety of adhesives and laminates which give the core properties such as strength, water resistance, or heat resistance. Made for a wide range of applications, paper cores come in virtually limitless combinations of diameter, thickness, and length.
Cores are manufactured to provide a stable structure from the inside of a product roll. As opposed to many other paper tubes such as shipping tubes or postal tubes, which are fabricated to be an outer protective layer to objects, paper cores provide support from their exterior. As such, a core has to be able to withstand the pressure of the material which is to be wound around it.