Although the big bag can ensure that the packaged goods are not damaged during loading, unloading, transportation and storage. But the prerequisite is that the quality of the big bag is qualified.
1. Firmness
It mainly refers to the strength of the big bag. In the design, the packaging volume, the weight of the contents and the packaging unit (number) should be considered, as well as the distance of the transportation distance and the number of times of transportation, and what kind of transportation means and transportation methods should be used.
2. Custody
The materials should be selected reasonably according to the user's use conditions, and the process ratio should be reasonable. For example, the anti-aging ability of plastic materials under sunlight exposure is a major indicator to determine the quality of ton bags, and it is also a problem often encountered in the actual use of ton bags. Therefore, attention should be paid to the use of anti-ultraviolet agents and the durability Choice of materials for UV exposure.
3. Practicality
It is necessary to fully consider the specific ways and methods of customers using big bags, such as lifting, transportation methods, and the performance of loaded materials. In addition, it is also necessary to consider whether the packaged goods are food, and ensure that there is no adverse effect on the packaged food.
4. Sealing
Different packaging materials have different sealing requirements, such as powder or toxic materials, and items that are afraid of contamination have very strict requirements on sealing performance; special materials that are prone to moisture or mildew also have special requirements for air tightness, so when designing large bags Attention should be paid to considering the impact of the base fabric lamination process and sewing process on the airtightness.
