Some cartons have a high sizing density and a relatively smooth surface, which easily causes the transparent packing tape to be difficult to adhere to, so that the packing tape is prone to bounce or not stick firmly when the product is sealed. Therefore, effective packing tape cannot be performed. Usually, we should carry out the tape adhesion test for the cardboard paper used as the packing tape surface paper. The specific method is: take a moderately sticky transparent tape and attach it to the cardboard paper, and then tear the tape to separate it from the cardboard paper. It is enough to show that this type ofpacking tape is suitable for carton packing tape. If it can be easily separated and the surface of the cardboard paper is not damaged after tearing, it means that the cardboard paper is not suitable for tape packing tape.