Kraft paper promotes the development of paper packaging; the raw material of paper is mainly natural plant fiber, which will not cause environmental pollution and can be recycled for repapering. In addition, in addition to the advantages of light weight, low price, shock resistance, etc., pulp molded products also have good air permeability, which is beneficial for the preservation of fresh products. In the international commodity circulation, they are widely used in the turnover packaging of fragile, breakable, and squeeze-sensitive items such as eggs, fruits, and glass products.