【Carton knowledge】 The composition of corrugated cardboard
Corrugated cardboard began at the end of the 18th century. At the beginning of the 19th century, because of its light weight and low price, it has a wide range of uses, is easy to make, and can be recycled or even reused, making its application have a significant growth. By the beginning of the 20th century, it had obtained comprehensive generalization, promotion and application for making packaging for a variety of commodities. Since the packaging container made of corrugated cardboard has unique properties and advantages for beautifying and protecting the interior goods, it has achieved great success in the competition with various packaging materials. It has become one of the main materials for making packaging containers that has been used for a long time and is showing rapid development.
Corrugated cardboard is made by bonding face paper, backing paper, core paper and corrugated paper processed into corrugated corrugated paper. According to the needs of commodity packaging, corrugated paperboard can be processed into single-sided corrugated paperboard, three-layer corrugated paperboard, five-layer, seven-layer, eleven-layer corrugated paperboard (as shown in Figure 1, Figure 2 and Figure 3). Single-sided corrugated cardboard is generally used as a lining protective layer for commodity packaging or to make lightweight card grids and pads to protect products from shock or impact during storage and transportation. Three-layer and five-layer corrugated cardboard are used in the production of corrugated boxes. Used by the party. Many products are packaged in three-layer or five-layer corrugated cardboard, which is just the opposite and exquisite packaging. Printing beautiful and colorful graphics and pictures on the surface of corrugated boxes or corrugated boxes not only protects the inner products, but also promotes and beautifies. Inner goods. At present, many corrugated boxes or corrugated cartons made of three-layer or five-layer corrugated cardboard have been directly put on the sales counter and become sales packaging. The seven-layer or eleven-layer corrugated cardboard is mainly used for making packaging boxes for electromechanical, flue-cured tobacco, furniture, motorcycles, large household appliances, etc. In certain commodities, this corrugated cardboard can be combined to make inner and outer boxes, which is easy to make and convenient for the storage, storage and transportation of commodities. In recent years, according to the needs of environmental protection and the requirements of relevant national policies, the packaging of such corrugated cardboard products has gradually replaced wooden box packaging.
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