When designing a tonnage bag, the weight of the loaded cargo should be clearly defined first, and the volume of the tonnage bag should be determined according to the specific gravity of the packaged material. It is convenient for shipping bulk bulk powder materials. It has the characteristics of large volume, light weight and easy loading and unloading. It is one of the common packaging materials. The design of the ton bag is very important for the use of the ton bag, so what should you pay attention to when designing the ton bag? Here is a brief introduction for everyone.
1, improve the strength of the monofilament
To ensure the strength of the base fabric, the tensile strength of the flat yarn should be increased. In the actual production and processing process, the amount of filler masterbatch should be strictly controlled, generally around 2%. If the masterbatch is added too much, or if the recycled material is added, the strength of the base fabric will be lowered.
2, sling selection
In the design of the ton bag, the selection of the sling is crucial. In the actual design of the ton bag, one must consider the loss of the sling strength during the sewing process; the second is to consider the hoisting method. When the sling bag is designed with a sling, two rings and four rings can be used to increase the tensile strength.
3, add additives to extend the service life
In order to improve the anti-aging ability of plastic tons bags under sunlight, a certain amount of anti-purple agent and stabilizer should be added in the flat wire drawing process. The amount of addition is determined according to the length of the use period of the ton bag.
4, structural design
When the ton bag structure is designed, the base fabric is first cracked due to the inconsistent strength between the base fabric and the waistband. In the design, the waistband and the base fabric are made of the same strength base fabric to avoid this problem.
5, sewing process design
Tons of bags need to take into account the aging resistance of the stitching and the effect of the seam on the tensile strength of the base fabric. When packaging powder, toxic, and contaminated items, first solve the problem of sealing. Therefore, in the actual design, the ton bag is selected by using a thick needle or a non-woven fabric to be sewn together with the base fabric to improve the sealing property.
6, other
In the design, consideration should be given to increasing the strength of the bottom opening. This problem can be solved by increasing the thickness of the base fabric of the bag base and increasing the material of the material.