Ton bags are packaging products that we often use. Because Jiangxi ton bags have good packaging performance and play a very good role in the transportation and protection of commodities, they are now favored by many merchants and consumers. , But as there are more and more manufacturers making ton bags on the market, the quality of ton bags has become uneven and difficult to choose. Many friends do not know how to distinguish the quality of ton bags. Let me teach you the following. How to distinguish the quality of tons of bags.
The production process of the ton bag is: raw materials - drawing - weaving - coating - cutting - printing - sewing - inner bag - inspection - finishing - packing - storage. The ton bag generally has the feeding port, the top and bottom seams, the sling, the upper, middle and lower waistbands, the reinforcement, the discharge port and other parts. When designing the structure of the ton bag, it is stipulated in the specification that the strength of the waistband should be more than twice the strength of the base fabric, but in practice, the design effect is not good, because the strength of the base fabric and the waistband are not the same, causing the base fabric to crack first. In the design, the waistband and the base fabric are made of base fabrics with opposite strengths, which can prevent this problem. For large bags, the aging resistance of the stitching and the effect of the stitching on the tensile strength of the base fabric should also be considered. When packaging powdery, toxic, or decontaminated items, the problem of tightness must be dealt with first. Therefore, in the practical design, the ton bag is sewn with thick thread and fine needle or non-woven fabric and the base fabric to improve the tightness. In addition, when sewing big bags, it is required to use polyester thread with a strength of more than 18kg to ensure that the sewing strength is reached.
All in all, as the use of big bags becomes more and more extensive, the scope becomes larger and larger, and the adaptability to quality and various aspects is also constantly improving. Don't underestimate such a small ton bag, it also needs to be inspected many times before it can get into your hands.