Cartons generally use three or five floors, and the seventh floor is rarely used. Each layer is divided into lining paper, corrugated paper, core paper and facial paper. The inner paper includes paperboard, kraft paper and corrugated paper for core paper. All kinds of paper have different colors and feel, and the paper produced by different manufacturers is also different.
Extended data
History of Corrugated Boxes: 1856, two brothers Edward Healy and Edward Allen from England invented corrugated corrugated boxes as the lining of hats to breathe and absorb sweat.
187 1 year, Albert Jones, an American, invented single-sided corrugated board for packaging glass lampshades and similar fragile articles, and obtained the first patent in the United States. By the end of 19, the United States began to study the use of corrugated cardboard to make packaging and transportation boxes.
1920 double corrugated cardboard came out and its use expanded rapidly. During World War I, corrugated boxes only accounted for 20% of transport packaging. However, during World War II, corrugated boxes accounted for 80% of transport packaging. Corrugated box has become the most widely used packaging container in modern commerce and trade, and it is also one of the most important packaging forms adopted by all countries in the world today.
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