Sewing is an indispensable process in the production of FIBC, and it is related to the quality of the bag. Therefore, there must be certain technical requirements in the sewing process. So today we will briefly understand the technical requirements for the sewing of FIBCs.
1. The tensile strength of the bottom seam must be more than 42% of the strength of the base fabric.
2. The container bag is required to be straight and straight, with no obvious lack of menstruation or dimension, no obvious defects, no obvious stains on the surface, clear printing patterns on the bag body, and accurate positions.
3. The tensile strength of the side seams must reach 67% or more of the strength of the base fabric.
4. The sewing is required to be straight, without thread breakage, floating thread, hanging needle, no less than three stitches at the start and drop of the needle, the length of the sling should be equal, and the overlapping seam should be even and straight.
The quality of FIBC will directly affect the quality of transportation and production efficiency. Therefore, in any production process, production must be carried out in strict accordance with technical requirements.