Description
Double-wall corrugated cardboard is a type of packaging material that offers increased strength and durability compared to single-wall corrugated cardboard. As the name suggests, it consists of two layers of fluted cardboard sandwiched between three layers of linerboard.
Here’s a breakdown of its components:
- Linerboard: Double-wall corrugated cardboard has two outer layers of linerboard, which are typically made from kraft paper. These layers provide the structural integrity of the cardboard and serve as the surface for printing or labeling.
- Fluting: Between the two layers of linerboard are two layers of fluting. These are the wavy or ridged layers of paper that provide cushioning and support to the cardboard. The fluting adds strength and rigidity to the cardboard, making it suitable for heavier or more fragile items.
Double-wall corrugated cardboard offers several advantages over single-wall cardboard, including:
- Increased strength and durability: The additional layer of fluting and linerboard provides enhanced protection for items during transit and handling.
- Improved stacking strength: Double-wall corrugated cardboard can withstand higher stacking pressures, making it suitable for palletized shipments.
- Enhanced puncture resistance: The extra layers of material make double-wall cardboard more resistant to punctures and tears.
- Better insulation properties: The multiple layers of fluting provide improved insulation against temperature fluctuations and moisture.
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