Ton bags are generally made of multiple materials and single product materials. Most of the materials are: polypropylene, polyethylene, polypropylene is a thermoplastic resin made by polymerization of propylene, polypropylene is non-toxic, odorless, and tasteless White high-density crystalline polymer, only 1 cubic centimeter, is a variety of light plastics. Polypropylene has good heat resistance, and the product can be sterilized at a temperature above 1°C, and the big bag will not deform without external force. The formability is good, but the shrinkage rate is large. The process of making big bags and big bags is very cumbersome, but in order to better use the products, the big bag manufacturers will strictly regulate to ensure that the internal and external quality are up to the standard. However, sometimes the surface of big bags and big bags may be irregular. What is the reason?
The uneven surface of the ton packaging bag is mainly due to the uneven tension between the warp yarn and the weft yarn. The uneven tension between the warp yarn and the weft yarn will cause the uneven surface of the woven bag. There are many parts to adjusting the warp tension. The warp creel is the place where the warp tension is unbalanced. When the flat thread is wound on the shaft, the rotational resistance torque becomes unbalanced, and the tension becomes uneven. When using big bags, it is important to balance the load of the big bags, but how to balance the load of the big bags?
Tonnage bags may be damaged during transportation, and materials may leak or be contaminated. When operating the forklift, hang it in the hoisting belt or rope. In the process of loading, unloading and loading, the big bag is erected. When lifting the big bag, the uniformity of the force should be maintained, not just the side where the bag is lifted. This is because the concentration of force on one side can cause breakage and friction during transportation. When using a forklift to transport, prevent the forklift from being inserted directly into the bag to prevent damage.