Spiral vs Convolute - Explainer

Paper tubes are cylindrical structures made from layers of paper that are wound tightly around a central core. They are used in various industries such as packaging, textiles, and construction. There are two common types of paper tubes: convolute and spiral paper tubes. In this article, we will discuss the differences between these two types of paper tubes.

Convolute paper tubes are made by Convolute paper tubes are made by rolling one sheet longitudinally upon itself and are generally used for limited applications. The paper is usually made of kraft or recycled paper and is wound a straight on to create a cylindrical shape. Convolute paper tubes can have strong beam strength and so are often used in textile manufacturer however they do not have the same all over smooth surface and therefore can't be used in film production.

Spiral paper tubes, on the other hand, are made by winding sheets of paper, one on top of the other at an angle onto a mandrel in a continuous spiral. The paper is usually thinner than that used for convolute paper tubes and can be made from a variety of materials including kraft, recycled paper, and coated paper. The layers of paper are also glued together with a high-strength adhesive to create a smooth surface tube.

The primary difference between convolute and spiral paper tubes is the way they are manufactured. Convolute paper tubes are made by winding one layer of paper roll longitudinally upon itself, while spiral paper tubes are made by winding a multiple sheets of paper in a continuous spiral. This difference in manufacturing results in different properties and characteristics of the two types of paper tubes.

One of the main advantages of convolute paper tubes is their affordability. Because they are made from one layer of paper, convolute paper tubes can be produced at a slightly lower cost than spiral paper tubes. They are also lightweight and easy to handle, making them ideal for applications where weight is a concern. Convolute tubes are available in limited sizes due to their strength.

Spiral paper tubes, on the other hand, offer several advantages over convolute paper tubes. Because they are made from a layered sheets of paper, spiral paper tubes have a smoother surface and are less likely to unravel or come apart. They also have a higher crush resistance and are able to withstand heavier loads than convolute paper tubes when thick walled. Spiral paper tubes are also more customisable in terms of size and shape, making them ideal for applications where specific dimensions are required.

In terms of applications, spiral paper tubes are generally used for lighter applications such as mailing tubes, tape cores, and retail packaging. Convolute paper tubes, on the other hand, are used for heavier applications such as textile tubes. The choice between convolute and spiral paper tubes ultimately depends on the specific application and the requirements of the project.

In conclusion, convolute and spiral paper tubes are two common types of paper tubes used in various industries. Convolute paper tubes are made by rolling one sheet longitudinally upon itself and are generally used for textile applications. Spiral paper tubes are made by winding layers of paper in a continuous spiral and are generally used for more varied applications. The choice between convolute and spiral paper tubes depends on the specific requirements of the project and the application. If the JPT Team can help you more, get in touch and we can find the solution for you.