The container bag is a flexible packaging container. It mainly uses polypropylene as the main raw material. After adding a small amount of stable seasonings and evenly mixing it, the plastic film is melted and extruded through an extruder, cut into filaments, and then stretched. The PP raw yarn with high strength and low elongation is made by heat setting, which is then spun and laminated to make the base fabric of the plastic woven fabric, which is then sewn with accessories such as slings to make a container bag. It is moisture-proof, dust-proof, radiation-resistant, and strong. It can be easily loaded, unloaded, and transferred when transporting goods, which improves work efficiency. It is currently a commonly used transport package.
The manufacturing of container bags uses upper and lower composite feeding and presser foot cross-lifting mechanisms to ensure that the upper and lower layers do not shift when sewing slippery, sticky sewing materials and special-length products with a length stitch within the rated range so that the products are regular and the stitches are beautiful; The connecting rod thread take-up mechanism increases the spindle speed; the high-precision steel processing technology reduces noise and extends the service life. I hope the introduction of the above content can help you.
When the grain is harvested in rural areas, the dried grain needs to be stored or sold. Ton bags are mostly used to hold grain, so that the quantity contained in each ton bag is almost the same, and the error is not too large. There are many and they are easy to transport.
Ton bags have the advantages of being moisture-proof, dust-proof, radiation-resistant, strong, and have sufficient structural strength. As the loading, unloading, and transfer of container bags are very convenient, the loading and unloading efficiency has been significantly improved, and it has developed rapidly in recent years. Container bags are generally made of polyester fibers such as polypropylene and polyethylene. It can be widely used in the packaging of various powdery, granular, and lumpy items such as chemicals, building materials, plastics, and mineral products. It is an ideal product for warehousing, transportation, and other industries.
Two inspection methods for container bags
The first method: Place the fully loaded container bag on a pressurizing machine for a pressurization test. The pressure applied by the press is four times the full load weight of the container bag, or the static load method is used, that is, the self-weight of the four-layer fully loaded bag. The pressurization time is more than eight hours. If the contents do not spill out and the bag body is not damaged during this test, it means that the container bag has passed this test.
In low temperature: drop test. Lift the fully loaded container bag with a lifting device until the bottom of the bag is more than 0.8m above the ground, and then drop it vertically to solid and flat ground. If the contents do not overflow and the container bag body is not damaged, it means that After this experiment. After learning the effective inspection methods of these two types of container bags, you will buy more satisfactory products in the subsequent shopping malls. I hope it will be helpful to you.