The paper box packing usually uses the material to be exquisite, the modelling is specially exquisite, therefore the paper box packing itself also usually has certain ornamental. At the same time, carton packaging is widely used. To judge whether a carton is qualified or not, the first requirement is that the surface is clean and level off, free from folds and damages, and free from stains and impurities. Font, pattern should be clear and correct, no wrong printing, leakage printing, no ink pollution

Corrugated cardboard has two layers of corrugated cardboard, three layers of corrugated cardboard, five layers of corrugated cardboard, and even seven layers of corrugated cardboard. Then, what kind of cardboard is usually used for fruit carton packaging, because double-layer corrugated cardboard is a liner, a layer of corrugated base paper is bonded at 20%, and the cost is low, and it is only used as a separator and liner in fruit packaging; Three-layer corrugated cardboard, generally used for inner packaging, also used for grid board or layering. Liner; double corrugated cardboard, that is, five-layer corrugated cardboard, usually used for export packaging due to its good compressive strength.

Basically, most industries need cartons for packaging. Therefore, from the point of view of the users, because they need to buy cartons for a long time, how to purchase cartons at the most economical price is a very hot topic. After all, this directly affects the cost of business at ordinary times, and today to say how to buy cartons relatively cost-effective, so that we do a simple understanding.