Ton bags are generally made of various materials, and there are also single product materials. Most of the materials are: polypropylene, polyethylene, polypropylene is a thermoplastic resin obtained by the polymerization of propylene, polypropylene is non-toxic, odorless, tasteless White high-density crystalline polymer, only 1 cubic centimeter, is a variety in light plastics. Polypropylene has good heat resistance, the product can be sterilized at a temperature above 100 degrees, and the ton bag will not be deformed without external force. Good formability, but large shrinkage. The process of making ton bags and ton bags is very cumbersome, but in order to better use the product, strict specifications will be made to ensure that both the internal and external quality are up to the standard. However, sometimes the surface of ton bags and ton bags may be irregular. What is the reason?
The unevenness of the surface of the ton bag is mainly due to the uneven tension between the warp and weft yarns. Uneven tension between warp and weft will result in uneven surface of the woven bag. There are many parts to adjusting warp tension. The warp creel is where the warp tension imbalance occurs. When the flat thread is wound on the shaft, the rotational resistance moment 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?
Damaged in transit, material leaks or contamination. When operating the forklift, hang it in the hoisting belt or rope. During loading, unloading and loading, the big bag is erected. When lifting the big bag, the uniformity of force should be maintained, not just the side of the bag being lifted. This is because force concentration on one side can cause cracking and friction can occur during transport. When transporting with a forklift, prevent the forklift from inserting directly into the bag to prevent damage.