Paper cores consist of single-ply or multiple layers of compressed paperboard. Products provide a surface that will allow flexible materials to be wound around them. Some paper cores are designed to provide resistance. These products may be used in a variety of operational tasks that are conducted in an industrial setting.
Coated And Non-Coated Products
All paperboard products originate from trees. Sliced wood is mixed with water and run through equipment that blends the two ingredients into a slurry. After cleaning the mixture, flat sheets are dispensed and compressed. Paper cores contain a coated or non-coated surface. The coating may provide water resistance or be intended to add strength to a paperboard product. Paper cores include a line of products that are tightly bound and have a small opening on either side and large, cylindrical products that are long and wide.
The Design Of A Core
Paper cores tend to fit into one of two design types. An angled core is formed by winding paperboard at a slant. As the pieces are wound next to each other, a long tube is formed. A convoluted core is formed by winding paperboard in a parallel format. As the paper sections are wrapped, a paper core will contain visible markings that are perpendicular to the lengthwise shape of a core.
Angled cores are similar to the ones you would see in the center of a toilet tissue roll or a paper towel roll. Convoluted cores are similar to those you would see in the center of receipt paper rolls. A convoluted core is typically stronger than an angled core. This type of core offers high bend strength and crush resistance.
The Anchoring Process
A spindle, a metal bracket, or framework pieces may be used to hold paper cores in place. Some retailers may sell cores that come with anchoring pieces. The accessories may include the pieces that are needed to attach a core to a large display frame.
If you own equipment that already utilizes paper cores, purchase replacement cores or have current cores reloaded by sending an empty core to a supplier or a refilling center. There is equipment on the market that will allow materials to be quickly wound around cores. An automatic winder is something that you may want to invest in if you prepare rolled products "in-house". If you will be winding a minimal amount of materials around a core, the winding process can be conducted by hand.