Paper cores are a crucial part of any paperboard packaging. Choosing the right one can be overwhelming, with many paper core options available. Understanding the differences between them will help you choose the most suitable one. The choice of a core is important as it affects several factors, including the weight and cost of your product and its sustainability.
Here’s a breakdown of what you need to consider while choosing the right paper core for your job.
Intended Use of the Core
The anticipated use of a product can help you decide which paper core to use. Paper core is made for different purposes and has different qualities that make them ideal for certain projects. A heavy-duty core should be used for projects that will require repeated handling or frequent use. It should also be used for projects with a high chance of damage during transport or storage.
Material of the Core
There are two main types of paper cores: corrugated sheets and solid boards. The type you choose depends on the application. For example, if you’re shipping heavy or bulky items, you may want to use a solid board core because they provide solid support. Corrugated cores are best for lighter objects because they’re cheaper and easier to ship.
Paper grades refer to the quality of the materials used in making the paper. The higher the grade, the higher the quality, the more expensive, and the better it performs. So when choosing a grade for your product packaging, keep in mind what kind of application it will be used. Keep in mind how delicate the packaging is to find one that will work well for your needs.
Consistency of the Inner Diameter
The inner diameter of the paper core should be consistent throughout the roll. If there are spots where it is thinner or thicker, the packaging may sag in those areas.
To ensure that the paper core is a perfect fit on the shaft for unwinding, it needs to be of an appropriate diameter.
If you have a smaller diameter, there is more chance for paper tearing. If the diameter is big, the core will not fit properly on the shaft, resulting in a chew.
Core Length
Consider the length of the paper core. You might want to keep in mind that longer cores may be more expensive than shorter ones, but they can also hold more weight. You can choose based on measurements if you know how much of an item you want to fit into the core. If you are unsure, it is better to go with a longer core to adjust the length later.
Beam Strength
The beam strength of the paper core is measured by how much weight it can hold. The higher the number, the stronger the core is. If you are using a light product that will not weigh a lot, you might not need a core with more strength.
The type of packaging you are using and how much weight it will be holding will determine whether you need a strong core or if a weaker one will do.
Beam Stiffness
A stiff paper core is better than a flexible one as the stiff ones will not bend under the weight of the items. Flexible cores can cause the items to shift over time, which will result in a poor packaging experience.
If you need to have a flexible core, make sure that you have one that is not too bendy. A core that bends easily often does not hold the items properly.
Moisture Content
When the moisture content of the core is not controlled properly, it may result in the core shrinking over time, leading to a loose roll.
Speed
When the web of the wounded item is close to expiring, the unwinding speed increases. This will determine how fast your items will unwind when using a paper core.
The material and its thickness usually determine the speed of the core. Thicker materials will have slower speeds; thinner ones will have faster speeds.
If you are looking for a slower speed, consider getting a thick paper core because it will unwind slower than one that is thin. If you want to go faster, get one that is thin and has a higher speed rating.
Try Paper Cores Today!
In the end, choosing a paper core depends on what you want out of your roll. It’s about creating the right fit for your particular business and application. When selecting the best paper core for your application, there are many factors to consider. Some important considerations for your application include your intended use, beam strength, beam stiffness, inner diameter, and core length.
If you are looking for paper cores to use in your next roll, look at the paper core options on your dealer’s website. Be sure to ask questions if you have any concerns. An expert is in the right position to help you find the suitable core for your needs.
