Unlike ordinary plastic woven bags, the load-carrying capacity of FIBCs is much larger than that of general turnover materials. Therefore, it is very important to suture each part of it. It is not as simple as a normal packaging bag. It needs to go through multiple processes and also need to process other parts.
Collection bag
This goal is the most important and most important goal in FIBC. GB/T8946 plastic weaving specification and composite plastic national standard GB/T8947 clearly stipulate the tensile load of seam edge and seam bottom. The main factors that affect the strength of surgical sutures are: the type and type of suture, the size of the stitch length, the stitches, the perforation or crimping suture to the limit of the hemming, the method of incision, the method of cold cutting, etc.
Generally speaking, FIBC manufacturers should establish internal control targets for such risk factors. Regarding the bulk bag, the national standard stipulates that the compressive strength of the butt part of the actor must reach more than 67% of the root pressure, and the compressive strength of the bottom butt part must reach more than 42% of the root pressure. Regarding the sealing and spigot of plastic woven bags, it is considered to be an emergency treatment for the strength of the bottom of the seam. The strength of the bottom of the paper bag is generally unattainable, so it is considered to be changed to a glued bottom bag. Since the cold cut thread is easily torn by the warp and weft threads when joining the cold cut surface, the cold cut treatment of the film-coated cold cut bag is considered to be an emergency treatment method of rolling. Regarding the package hole without strength requirement, the stitches can be tightly spaced and the thread can be thin.
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