Skip to main content

Reasons for the Strength of Corrugated Cardboard

By November 4, 2022No Comments

Shipping products requires a great deal of consideration and study. Whether a box is used to ship antiques across the country or deliver a pizza, every box that is used has an impact. It’s crucial to understand the types of packaging and shipping supplies that both consumers and businesses use to move goods safely from one location to another. But what about the function of corrugated cardboard boxes?

Any user looking to package, ship, or store goods can greatly benefit from using corrugated cardboard. What are the three causes of the strength and widespread use of corrugated cardboard, respectively? It takes a special science and ongoing testing to make corrugated cardboard ideal for each customer and business.

Corrugated cardboard: what is it?

A strong and durable packaging material made of three layers of kraft paper is called corrugated fiberboard, or cardboard. The term “corrugated medium” refers to the interior layer of the wavy paper that gives the product its name. The cardboard is strengthened by the wavy medium, making it resistant to many external factors.

The inner sheet of craft paper goes through the corrugation process during manufacturing, which gives it flutes and folds. The wavy piece is assembled and then glued between two sheets of sturdy craft paper. A three-layered structure is produced by the outer layers, which also act as exterior liners.

How Important is Corrugated Cardboard?
For every packaging and shipping scenario, corrugated cardboard provides a wide range of applications and distinct advantages. It provides product damage protection and is also convenient for storage. There are numerous varieties of corrugated cardboard available as well, each with a different use.

The cardboard is thin enough to stack multiple pieces neatly and get put away without taking up too much space, regardless of how the products are stored on the shelves. Both the flute and board types come in a variety of sizes and wave heights. The board styles allow for the shipping of hazardous or fragile goods because they have various wall layers that offer additional support and protection.

How do they make corrugated cardboard so strong?
Corrugated cardboard offers strength and durability for a variety of reasons. The rigid flutes are still encased between two pieces of cardboard, but the structure supports a substantial amount of weight. It supports food weight in travel boxes and is useful for shipping purposes. Three factors that make corrugated cardboard so strong can basically be explained by straightforward science and testing.

As was already mentioned, there are various styles for both flutes and boards. Standard single-wallboard with thin-flute construction will do fine for pizza deliveries. However, a business should use triple wallboard with extensive fluting if it needs to move particular chemicals that require special handling.

Linear Alteration
The strength of the corrugated construction process is greatly influenced by liners, or flat, non-corrugated layers. While the liners give the process various weights and rigidities, they also play a crucial part in controlling the retention and transfer of extra moisture. The liner is made of a lot of recycled material, which accounts for its durability.

Corrugated cardboard has lower strengths for tearing because it is produced using recycled materials, which tend to stay weaker than shorter fibers. Moisture retention is significantly impacted by its fiber length. However, recycled materials provide a more cost-effective option.

The Corrugated Flutes’ Width
Where does corrugated cardboard come from if it has such incredible strength? Flutes are the inner sheet that is sandwiched between the two paper sheets that make up corrugated cardboard. The flute is designed to strengthen boards and increase their ability to withstand pressure from all directions while being transported.

Furthermore, the space between each flute and arch curve adds additional cushioning and insulation for cold temperatures. The factors of stacking strength, cushioning, compression, printing, crush resistance, stiffness, and flexibility are also taken into account when determining the size of the flutes for different applications.

Amount of adhesive strength
When it comes to strength, the process of making and testing the material to withstand various factors is typically the main focus. The strength of the corrugated cardboard is significantly impacted by the adhesive used. Most of the time, the glue can provide some water resistance, but this leaves the corrugated fiberboard vulnerable to moisture and humidity.

There are strict requirements for the glue and its capacity to resist and withstand excessive moisture as businesses manufacture corrugated cardboard. The result is that the corrugated boxes have a better chance of staying together and enduring the standard shipping process, in part because of the adhesive.

Utilization of Corrugated Cardboard
Each box made of corrugated cardboard is used for a different purpose and isn’t just used to ship goods from one place to another. The following are a few unusual industries that use corrugated cardboard boxes:

The food business
Office equipment and supplies
Healthcare and online shopping
Batteries and electronics
The textile sector
the automobile sector
the armed forces

The majority of industries have been supported by corrugated cardboard, which has kept products safe with little to no worry or problems. Furthermore, corrugated cardboard makes it simple to print logos and allows for customized fitting for shipping (while keeping logos unique and 

Manufacturers frequently use corrugated cardboard because it is strong and ensures safe product shipping. Since their creation, corrugated boxes have developed into one of the most widely used and available materials. Even the most delicate and fragile items can be handled safely thanks to their structural rigidity and cushioning.

It’s no surprise that corrugated cardboard has become so widely used given its many benefits, which include customization, adorability, protection, flexibility, and so much more.

As an American company, W Packaging believes it is our values that make the difference. W Packaging has the highest quality control measures paced across the entire production process.