Kraft paper is commonly used in the production of corrugated boxes due to its strength, durability, and eco-friendly nature. Here are some key uses of kraft paper in corrugated boxes:

• Outer Layer: Kraft paper is often used as the outer layer or linerboard of a corrugated box. It provides a smooth and printable surface, allowing for branding, labeling, and product information to be easily displayed. The kraft paper’s strength helps protect the box’s contents and provides resistance against tearing and punctures.
• Fluting: Kraft paper is used to create the fluted or wavy layer in a corrugated box. The flutes serve as a cushioning and protective layer, adding structural integrity to the box. The kraft paper used for fluting is typically of medium or high strength, depending on the specific requirements of the box.

• Inner Liner: In some cases, kraft paper is used as an inner liner within a corrugated box. It acts as an additional layer of protection for the contents and helps prevent moisture absorption. The kraft paper liner also helps to maintain the shape and structure of the box during storage and transportation.

• Void Fill: Kraft paper can be used as a filler material within the corrugated box to fill any empty spaces and provide cushioning. This helps prevent the contents from shifting or getting damaged during handling and shipping.

• Wrapping: Kraft paper is often used for wrapping individual items or products before placing them inside a corrugated box. It offers protection against scratches, abrasion, and minor impacts, ensuring the product reaches its destination in good condition.

Overall, the use of kraft paper in corrugated boxes provides strength, protection, and versatility, making it an ideal material choice for various packaging applications. Additionally, kraft paper is recyclable and biodegradable, aligning with sustainable packaging practices.