Food bags pay attention to what problems

1, in the design of food grade ton bag, first clear the weight of the loaded goods, according to the proportion of the material to determine the food grade ton bag volume. It also depends on whether the loading material is sharp and hard block material, if so, the base fabric selection should be thicker when designing food-grade ton bags, and on the contrary, it can be thinner.

Food ton bag

2. Structural design; When designing the food-grade ton bag structure, the national standard stipulates that the strength of the waist band should reach more than twice the strength of the base cloth, but the actual design effect is not good, because the strength of the base cloth and the waist band is inconsistent, resulting in the base cloth cracking first. In the design, the waist band and the base fabric use the same strength of the base fabric material to avoid this problem.

3, the sling material selection close; In the design of food grade ton bag, the selection of sling material is very important. The safety factor of 1:6 is clearly stipulated in the national standard. In the actual design of food grade ton bag, first, the loss of strap strength in the sewing process should be considered; Second, consider the hoisting method. For example, the load of 500kg food-grade ton bags, the sling is generally selected (50-60)g/m, and the tension is (1300-1800) N/m; The food-grade ton bag with a load of 1000kg is generally selected as (60-75)g/m, and the tension is (1800-2100)N/m, which requires that the sling must meet the braid density requirements. Food grade ton bag in addition to the design of the sling, can choose two rings, four rings and other ways to increase the tensile strength.

4, fill additives, extend the service life; In order to improve the anti-aging ability of plastic food-grade ton bags under sunlight, a certain amount of anti-violet agent and stabilizer should be filled in the flat wire drawing process. According to the length of the use period of the ton bag (half a year or one year), the amount of addition is determined, generally between (0.1 to 3) %. Some companies add anti-aging masterbatch made of stabilizer, anti-violet agent and other additives, and the effect is also very good.

In the design of food grade ton bags, in order to ensure its quality, it is necessary to consider various indicators, constantly improve the production process, and strengthen technological innovation.