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Corrugated cardboard began in the late 18th century. Due to its light weight and low price, its wide range of applications, its simplicity of production, and its ability to be recycled and even reused, its use has grown significantly. By the beginning of the 20th century, it had obtained a full range of popularization, promotion and application for the packaging of various commodities. As the use of corrugated cardboard packaging containers has unique properties and advantages for beautifying and protecting interior products, it has achieved great success in competition with a variety of packaging materials. It has become one of the main materials used to make packaging containers that have been used for a long time and are rapidly developing.
Corrugated cardboard is made by bonding paper, paper, core paper and corrugated paper processed into corrugated corrugations. According to the requirements of commodity packaging, corrugated board can be processed into single-sided corrugated cardboard, three-layer corrugated cardboard, five-layer, seven-layer, and eleven-layer corrugated cardboard (Fig. 1, Fig. 2, Fig. 3). Single-faced corrugated cardboard is generally used as a protective layer for packaging of goods or to make lightweight cagging and backing plates to protect products from vibration or collision during storage and transportation. Three-layer and five-layer corrugated cardboard are used in making corrugated cardboard boxes. common. The packaging of many products is simple and beautifully packaged on three or five layers of corrugated cardboard. The use of colorful graphics and images on the surface of corrugated boxes or corrugated boxes not only protects the internal merchandise, but also promotes and beautifies the inner commodity. Many corrugated cartons or corrugated cartons made from three or five-layer corrugated cardboard have been sold directly to the sales counter and become sales packaging. Seven or eleven-layer corrugated paperboards are mainly used for making electrical boxes, flue-cured tobacco, furniture, motorcycles, and large household appliances. In a specific product, this corrugated cardboard combination can be used to make the inner and outer casings, which is convenient for production and is convenient for the packaging, storage and transportation of goods. With the needs of environmental protection and the requirements of relevant national policies, the packaging of corrugated board products has gradually replaced wooden packaging.