What types of flute patterns are available for corrugated cardboard? Corrugated cardboard is transformed into corrugated boxes through processes like die-cutting, creasing, nailing, or gluing. Corrugated boxes are a widely-used packaging product, consistently accounting for a significant portion of packaging materials. This includes calcium-plastic corrugated boxes. For over half a century, corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their good performance and processing properties, becoming the mainstay of transport packaging.

In addition to protecting products and facilitating storage and transportation, it also enhances the appearance and promotes the product. Corrugated boxes are environmentally friendly products, benefiting both the environment and the handling and transportation process.

Based on the size of the fluting on the core paper, specifically its height and the number of flutes per unit length, corrugated cardboard can be further subdivided. There are four types of core paper fluting, as shown in the table below for the cardboard produced by Mitsubishi and Langston flute machines.

Corrugated boxes with thicker "A" flute patterns offer superior top-bottom compressive strength compared to "B" and "C" flutes. However, when comparing "A" and "B" flute patterns, the thinner "B" flute boasts better resistance to upward compression. "A" and "C" flute patterns are used for boxes that are subject to bottom compression and require cushioning.

The "B" flute is ideal for box manufacturing where capacity and space are crucial, but stacking strength is less of a concern. The "E" flute offers high crush resistance, albeit with slightly reduced shock absorption, and is primarily used for Corrugated (Color-Printed) boxes that need to bear heavy loads.