The production of load-bearing carton not only requires high cost performance, but also looks very delicate. In other words, if the development trend of load-bearing carton packaging factory is to become better and better, the more dry the bigger, then we must strictly control the quality and printing technology of load-bearing carton products, and strictly produce load-bearing carton according to the requirements of consumers. As a load-bearing carton for packing goods, customers require not only exquisite appearance, but also firm structure, which can maintain goods.
The quality of the load-bearing carton comes from the weight of each layer of printing paper. The five layer carton is divided into BC corrugations. The outer printing paper is called facial tissue paper, the shorter one is called B corrugation, the middle one is called separator paper, the high one is called C corrugation, and the inner one is called inner paper. Both facial tissue paper and inner paper are called cardboard in Shanghai paper box factory, and BC corrugation paper is called corrugated board. In that case, it can be divided into 90g, 100g, 120, 130, 140g and 160g. Cardboard can be divided into 120g, 140g, 170g, 200g and 230g. Naturally, it has a high price.
Because of the harm of many factors in the processing process, the ultimate compressive strength of the cartons made of raw materials may not be completely consistent with the estimated results. Therefore, the final way to accurately determine the compressive strength of the load-bearing cartons is to control the temperature and humidity of the cartons, and then use the carton compression testing machine to test them. For large and medium-sized factories without testing equipment, they can test the compressive strength of the load-bearing cartons in the paper industry A wooden board is covered on the side of the box, and then the equal lifting objects are piled on the wooden board to roughly determine whether the compressive strength of the load-bearing box meets the requirements.
We know that during packaging and printing, the corrugated box is transported to the grooving section by the paper guide roller and packaging and printing roller of the printing equipment. After the working pressure of the roller, the physical appearance of the cardboard changes at different levels, which will certainly harm the strength of the load-bearing box. Full page packaging printing is particularly prominent. Compared with non packaging printing, the intensity of carton made of the same raw material should be reduced by 30%, so great attention should be paid to the processing.
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