In the process of producing container bags, there are many processes. One of the processes for container bags is the wire drawing process. The width of the wire and the lightness of the pulling force directly determine the quality of the container bag.
Brushing process.
When drawing, after extruding the plastic film, you need to pay attention to the following matters. After the extruded molten film is cooled, the appropriate knife distance is selected according to the type of flat filament for cutting. When cutting, try to maintain the uniformity of the flat film. The cut flat film needs to be thermally stretched to obtain a flat yarn with greater tensile strength. However, to prevent the flat yarn from shortening greatly during the future weaving process, it should also be heat-set. Only after passing such a series of cutting and drawing tests can the quality of the container bag be characterized. Therefore, the flat wire drawing process of container bags is still very difficult and unpredictable.
Many people do not understand the difference between ton bags, container bags, and soft pallets. Ton bags are also called ton bags and container bags by citizens. Because their load capacity is generally measured in tons, they are often called ton bags. Now container bags The goods contained in the bags are available in various standards of 0.5-3 tons, and the volume is between 500-2300L. The safety factor can be planned according to user needs of 3:1, 5:1, and 6:1. It is convenient for shipping bulk powdery materials. It has the characteristics of large volume, lightweight, and easy loading and unloading. It is one of the common packaging materials. It has a simple structure, lightweight, can be folded, takes up little space when emptying, and is cheap. Ton bag is a flexible shipping packaging container. It has the advantages of being moisture-proof, dust-proof, radiation-resistant, strong, and has sufficient structural strength. Because container bags are very convenient to load, unload, and transfer the loading and unloading efficiency has been significantly improved, and it has developed rapidly in recent years. Ton bags, container bags, and soft pallets all use polypropylene as the main raw material. After adding a small amount of stabilizing seasonings and evenly mixing them, the plastic film is melted and extruded through an extruder, cut into filaments, and then stretched and heated by heat. It is shaped into high-strength and low-elongation PP raw yarn, which is then spun and laminated to make a base fabric for plastic woven fabric, which is then sewn with accessories such as slings to make a ton bag. Container bags are divided into three types according to their shapes: round, square, and U-shaped. The hoisting structures include top hoisting type, side hoisting type, and bottom hoisting type, usually with an inlet and outlet.
How to load trucks with tons of weight? As for transportation, railing, and warehouse rail models are more suitable for loading ton bags. Ton packaging cannot be loaded and unloaded manually. It is very convenient to load and unload ton bags in places with aerial cranes. If there is no flying crane, a counterbalanced forklift can also be used, but it should be noted that there is no problem in lifting the sling, and the bottom of the ton bag cannot be directly forked. When there are no forklifts and cranes, the loader's shovel tip can also make do with it. Of course, it can also be used with a pallet, which is not easy to damage and has a higher coefficient.