FIBC is essential to carry out a certain quality inspection before the original factory. Today we take a look at two reasonable quality inspections applied before FIBC leave the factory.
The first is the stability test. Put the overloaded FIBC into a press for a pressurization experiment. The working pressure applied by the press is 4 times the full capacity of the FIBC, or select the static load test method, that is, the four-layer full bag weight, plus The pressing time is more than 8 hours. If the contents do not overflow and the bag body is not damaged, it means that the container bag complies with the experiment.
The second is the drop test. The overloaded container bag is hoisted with hoisting equipment, the bottom of the bag is 0.8 meters away from the road, and then it drops vertically onto the hard and level road once. If there is no spilled content and no damaged container bag, it means that according to this experiment.
After learning these two reasonable FIBC inspection methods, you will surely buy more satisfactory products in the after-sales market and look forward to helping you.
Sewing is an indispensable process in the entire process of manufacturing FIBCs, and it is related to the quality of packaging bags. Therefore, there must be certain technical standards in the sewing process. So today we will briefly understand the technical standards of FIBC sewing.
1. The compressive strength of the bottom seam must be more than 42% of the compressive strength of the needle punched non-woven fabric.
2. The container bag should be vertical, straight, without obvious warpage and size, no obvious defects, no obvious stains on the surface, clear design of packaging and printing patterns, and accurate location.
3. The compressive strength of the side seams must be higher than 67% of the compressive strength of the needle punched non-woven fabric.
4. The sewing rules are vertical, no broken needles, no floating threads, no hanging needles, needle lifting and needle drop positions are no less than three needles, the length of the camisole should be equal, and the seams should be symmetrical and vertical.
The quality of the FIBC will directly affect the quality and productivity of transportation. Therefore, in each manufacturing process, it must be manufactured in strict accordance with technical standards.