The quality of container bags is very important. Therefore, the international market has its own strict standards for container bag products. The focus of the standards is different. Japan pays attention to details, Australia pays attention to form, and the EC standard pays attention to product performance technical indicators, which is concise and concise. There are strict requirements for container bags in terms of UV resistance, anti-aging, safety factor, etc. "Safety factor" is the ratio between the maximum bearing capacity of the product and the rated design load. It mainly depends on whether the container bag is loaded with several times the content and repeatedly lifted, whether there are abnormal conditions between the content and the bag body, and whether the connection is damaged. In similar standards at home and abroad, the safety factor is generally set at 5-6 times. Container bag products with a five-fold safety factor can be used safely for a longer time. If anti-ultraviolet additives are added, the container bag has a wider range of applications and stronger competitiveness. This is an indisputable fact. When the sling is connected to the bag body, there are multiple forms such as top hanging, bottom hanging, side hanging, etc., and they are connected by sutures, so the sutures are also very important. Only relying on the high strength of the sling, the base fabric and the seams cannot reach a certain strength, nor can they ensure the overall high performance of the container bag.
The seams of the container bag must also be particularly strong, and reinforced sewing must be used. Ordinary sewing is OK by folding and sewing twice. Reinforced sewing uses folding, sewing twice and adding twisted edges. The container bag will not fall apart due to loose sewing. The bag body can also be strengthened by using oblique reinforcement. Container bags sometimes need to contain powders, such as mineral powder, medicinal powder, flour, etc. Generally, enterprises use machine airflow filling. Once ordinary container bags are filled with airflow, the powder will leak out from the pores at the seams with the airflow. In this case, PE inner bags cannot be used. Leak-proof design can only be used at the seams of the container bag: generally, cotton strips are used for sewing. This can solve this problem well.
Now that we know how the charge on the container bag is generated, we can take corresponding measures to eliminate static electricity: General conductive container bags are made by adding conductive threads to the container bags. The shape and other parameters of this type of container bag are the same as those of ordinary container bags. The only difference is that there are conductive threads on the bag body, slings, loading and unloading ports, loading and unloading ports and lock edges of the container bag. The conductive threads are in contact with the conductive film. The distance between the conductive threads on the bag body is <5CM. The seams of the bag body can also be supplemented with leak-proof seams, and the inner surface of the bag body can also have a leak-proof layer; the shape of the bag body can be a rectangular parallelepiped, a cube, a cylinder, a prism or a frustum; the loading and unloading ports can be one or two; the outer edge of the seams of the bag body can have lock edges.