In the field of modern industrial packaging, cowhide cardboard drums have become an important choice for industries such as chemical, food, and pharmaceutical due to their excellent sealing and moisture resistance. Its unique structural design and material characteristics provide comprehensive protection for the contents, especially suitable for high-value products that are sensitive to humidity.

1、 Multi layer composite structure, creating ultimate sealing

The kraft paper board bucket adopts a composite process of high-strength kraft paper and moisture-proof film. The bucket body is formed by spiral rolling multiple layers of kraft paper, and the inner wall is coated with polyethylene (PE) or aluminum foil to form a tight physical barrier layer. The lid and body of the barrel are tightly interlocked through embedded slots or sealing rings, combined with heat sealing technology, effectively isolating air and water vapor infiltration, ensuring that the contents are protected from external environmental erosion during transportation or storage.

2、 Technological support for moisture resistance performance

Material optimization: Special kraft paper is treated with hydrophobic treatment and combined with moisture-proof coating, with a water absorption rate of less than 3%, far superior to ordinary paper packaging.

Environmental adaptability: Tested according to the ISO2210 standard, it can be stored in an environment with a humidity of 90% for 30 days, and the humidity inside the bucket can still be controlled below 55%, meeting the strict requirements of precision electronic components, pharmaceuticals, and other dry environments.

Edge reinforcement design: Metal hoops or full plastic edge wrapping technology are used for the barrel mouth and bottom to avoid joint cracking caused by temperature differences and further enhance moisture resistance and stability.

3、 Diversified expansion of application scenarios

From chemical powders to food additives, from dried tea to medical reagents, the moisture-proof properties of kraft paper barrels make them a universal solution across industries. For example, after using this type of packaging for export grade rosin products, the agglomeration rate during sea transportation decreases by 70%; High end milk powder companies have extended their shelf life to over 24 months through their oxygen blocking and moisture-proof functions.

Conclusion

In the pursuit of sustainable packaging today, cowhide cardboard barrels are based on biodegradable materials and incorporate innovative processes to redefine industrial moisture standards. Its advantages of balancing environmental protection and performance are driving more fields to bid farewell to traditional iron drums and plastic packaging and move towards a new era of high efficiency and energy conservation.