What makes a 7-ply corrugated box a more durable packaging solution?

A 7-ply corrugated box is a packaging solution that provides excellent durability, strength, and protection for a variety of products. Corrugated boxes are made from a combination of different materials, including liners, medium, and adhesives, which are layered together to create a sturdy and resilient structure. In this answer, we will explore the key features that make a 7-ply corrugated box a more durable packaging solution.

Firstly, let’s consider the materials used in a 7-ply corrugated box. The liner is the outermost layer of the box, and it is usually made from a type of paperboard or cardboard. The medium is the middle layer, which provides the box with its strength and rigidity. It is made from a type of fluted paper that is sandwiched between two liners. The adhesives are used to bond the layers together, ensuring that the box stays intact during transport and handling.

The number of layers in a corrugated box determines its strength and durability. A 7-ply corrugated box, as the name suggests, has seven layers of material, including three layers of medium sandwiched between four layers of liner. The additional layers of medium and liner make the box more robust and resistant to damage than a box with fewer layers.

The strength of a corrugated box comes from its fluted medium, which is the layer of paper that is sandwiched between the two liners. The flutes are the wavy lines that run parallel to the length of the box, and they provide the box with its rigidity and strength. The size and shape of the flutes can vary, depending on the intended use of the box. Larger flutes provide more cushioning and shock absorption, making them suitable for heavy or fragile items.

The thickness of the paper used in the liners and medium also contributes to the strength and durability of the box. Corrugated boxes are available in a range of thicknesses, from single-wall to triple-wall. A 7-ply corrugated box typically has a thickness of around 7 mm, which provides excellent protection for the contents of the box.

Another factor that contributes to the durability of a 7-ply corrugated box is its ability to withstand compression. Corrugated boxes are tested for their compression strength, which is the amount of weight that the box can withstand before it starts to collapse. A 7-ply corrugated box can typically withstand a compression force of around 500 pounds per square inch (psi), making it ideal for heavy or bulky items.

In addition to its strength and durability, a 7-ply corrugated box is also an eco-friendly packaging solution. Corrugated boxes are made from recycled materials, and they are fully recyclable after use. This means that they can be reused or repurposed, reducing waste and helping to protect the environment.

In conclusion, a 7-ply corrugated box is a durable and robust packaging solution that provides excellent protection for a variety of products. Its multiple layers of material, fluted medium, and strong adhesives make it resistant to damage and collapse, while its ability to withstand compression makes it ideal for heavy or bulky items. Furthermore, it is an eco-friendly option that can be reused or recycled after use, reducing waste and helping to protect the environment.