Mixed fresh-keeping corrugated cardboard

In the manufacturing process of corrugated paperboard inner paper, nanoscale porous ethylene gas absorption powders can be added to prevent ripening; special ceramic powders capable of emitting infrared rays with wavelengths of 6 μm to 14 μm can also be coated on the base paper. This kind of powder can emit infrared rays at room temperature, which can not only activate the relevant molecules in the fruit, increase the ability to resist microbial erosion, but also activate the enzyme and increase the sweetness of the fruit. The cartons manufactured by this method are particularly suitable for packaging peaches, grapes, bayberry and other products, and have excellent preservation effect.