Because of the special purpose of the FIBC, there are strict requirements for its quality. Then we come to understand its sewing requirements, which will directly affect the quality of the FIBC.
1. The sewing size is ±1CM as required by the craft sheet, and the stitch distance is 0.7-0.9CM/needle.
2. Use the sewing thread as required. The sewing thread is not allowed to have overlaps, leaks, floating threads, missing buttons, lower kangs, etc., and the upper and lower threads are tight.
3. The starting needle of the container bag is within 10cm from the angle.
4. The seam between the main body and the bottom should be aligned with the double-folded edges. Sewing 3 threads with a width of about 2CM. No obvious wrinkles are allowed. The threads are even and do not overlap. The needle is pressed against the needle.
5. Reinforced cloth, cover cloth, and chrysanthemum mouth (10CM×10CM) are not allowed to have de-filing or hot melt.
6. The start and end needles of the sewing container bag overlap 5CM on the same suture line (the needle is pressed against the start needle), the start needle of the reinforced cloth is at the upper left, the stitching line and the margin are 1CM, and the sewing material bag is the start stitch and the margin is 1CM. , Start the needle and knock down the needle.
7. The length of the thread end of the sewing thread should not exceed 1.5CM.
8. Slings, reinforced fabrics, and wrapping fabrics are not allowed to be sewn in the wrong position, crooked, skewed, or twisted.
The quality of the FIBC depends on the base fabric, the sewing standard and so on, so in order to ensure the quality, we must not neglect in any production link.