Corrugated paper, also known as corrugated cardboard, consists of two flat linerboards bonded together with a fluted (wave-shaped) medium sandwiched in between, forming a saw-tooth-like structure. The wavy inner layer significantly enhances resistance to friction and impact during transportation. Thanks to its outstanding strength and versatility in shaping and design, corrugated paper is widely favored. It is not only durable and aesthetically pleasing but also ideal for packaging a wide range of products—from small items to large goods.
Common Types of Corrugated Cardboard
There are three main types of corrugated cardboard commonly used today:
◉ 2-Layer Corrugated Cardboard (C Flute):
Consists of one flat linerboard and one corrugated (fluted) layer. It is typically used for simple packaging applications such as basic cartons or as a cushioning layer to prevent shock during transportation.
◉ 3-Layer Corrugated Cardboard (B, C, or E Flute):
Made up of two flat linerboards and one fluted medium in between. This type is widely used for general packaging and is suitable for various types of products.
◉ 5-Layer Corrugated Cardboard (B and C Flute):
Constructed with three flat linerboards and two corrugated layers sandwiched in between. The outer layer usually uses B flute for enhanced surface strength. This type is ideal for packaging large and heavy items that require extra protection.
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Benefits of Corrugated Cardboard
Corrugated cardboard is widely used as the main material for packaging boxes and shipping cartons. Thanks to its lightweight nature, ease of handling, and lower cost compared to wooden or aluminum containers—along with its eco-friendliness—it has become a popular packaging choice. Corrugated packaging helps protect goods from impact and reduces damage during transportation. Notably, this material is easily reusable and recyclable, contributing to pollution reduction and environmental protection.
