What are the tensile strength and puncture resistance of industrial-grade PE plastic bags?

Industrial grade PE plastic bags are a common packaging material widely used in many industrial fields. Their tensile strength and puncture resistance are two key indicators to measure their quality and practicality. Tensile strength refers to the ability of a material to resist breaking when subjected to tension. For industrial grade PE plastic bags, this performance directly determines whether they are easy to tear when carrying heavy objects, being pulled and carried, or during filling. In daily use, industrial grade PE bags are usually used to hold hardware parts, powder raw materials, plastic particles, mechanical accessories and other items, which are often heavy and even have sharp edges. If plastic bags are prone to breaking during stretching, it will not only cause material leakage, but also increase operational risks. Plastic bags with good tensile properties can ensure that they maintain integrity during use and are not easily broken by external forces, thereby improving the overall safety and work efficiency of transportation.
Puncture resistance is a measure of the ability of a material to remain intact under the impact or pressure of sharp objects. In industrial scenarios, many items have irregular shapes, such as screws, nails, metal parts or rough raw materials, which may cause concentrated stress on packaging materials during bagging or stacking. If the plastic bag's puncture resistance is insufficient, it is very easy to have holes when it comes into contact with sharp objects, which will cause problems such as breakage, powder spillage, and packaging failure. PE plastic bags with strong puncture resistance can effectively disperse stress when facing such challenges, maintain structural stability and integrity, and thus reduce the occurrence of packaging accidents.
In addition to individual performance, tensile and puncture resistance usually work together. For example, in cargo handling, plastic bags may be subjected to both tension and top pressure from internal sharp objects. If only one of these properties is available, it is still difficult to cope with complex use environments. Industrial-grade PE plastic bags have been optimized in terms of material selection, thickness control, and structural design, and can maintain a good state under the action of multiple forces, improving service life and reliability.
The performance of this type of plastic bag is also affected by the production process. For example, plastic bags using multi-layer co-extrusion technology have a tighter structure, which not only improves the strength during stretching, but also enhances the protection against external sharp objects. Reasonable heat sealing technology and edge processing technology can also help to further avoid the possibility of tearing from the bag mouth or edge, and enhance the stability of the overall bag.
In the application scenario, industrial-grade PE plastic bags with good tensile and puncture resistance can not only cope with ordinary material packaging, but also are suitable for special industries with high strength requirements, such as construction, machinery, metallurgy, mining, etc. The packaging in these fields often needs to withstand complex and changeable transportation and storage environments, and high-strength plastic bags have become the key to ensuring material safety.