How to Repair Damaged Bulk Bags

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We all know that mishaps in the workplace can occur for a number of different reasons. Important as they are to your business, bulk bags can be easily damaged by being stretched, ripped, or otherwise weakened. These bags are made from a polypropylene fabric that is knitted from thousands of tiny threads, making them extremely strong and capable of holding a lot of stuff. They aren't invincible, though; wear and tear can occur gradually or suddenly due to things like carelessness with a forklift or a slip of the blade with a box cutter.


Buying a new bulk bag isn't always the best option. Until you can place a new order, you might need to temporarily repair a rip. Alternately, you can have your bags professionally mended using SABS-approved thread and state-of-the-art sewing machines. In this article, we will discuss how to repair damaged bulk bags.

Repairing Broken Bulk Bags


To patch the bag


    To begin, remove a length of patch tape from the roll that's big enough to seal the hole in the bag.


    Never try to patch a dirty or wet bag, no matter how much of a rush you're in.


    As soon as you're ready, remove the tape's backing and stick it directly over the tear in the bag. 


    Tape application may require special considerations, depending on the condition of the bulk bag. If a filled bag was ruptured and its contents spilled out, start taping at the bottom of the hole. The product can be confined while the tape is put in an upward manner over the hole if the lower section of the hole is patched first.


    After applying patch tape to the patched area, be sure to press firmly to ensure a good bond. Make sure there is no leaking of any kind of material.Keep in mind that patch tape is only meant for short-term fixes.

To sew the bag


    Bags can be expertly repaired with SABS-approved thread on high-tech sewing machines.


    When sewing bulk big bags, you must sew in accordance with the operating specifications, with a stitch spacing of about one cm; the sewing thread used must be a special thread with no slats, curls, or floating threads.


    For cracks, the upper and lower threads should be the same material, and the stitches should be rectangular, with a dead button every 10 cm.


    When sewing the bottom of the bulk bag, pay close attention to the edge alignment. Sew back and forth three times more.


    The thread and other details must be cleaned, and the stitches must be routed evenly.


    The air needle should be reinforced on the upper left side of the fabric, and the tread distance should be at least two cm.


    If it's a special high-strength large bag, sew three times back and forth with reverse stitches, then cut the edges aligned.



Most bags are frequently broken at the handle. There are two quick repair methods. One method is to cut off the broken part at the original break and then use double-thread stitching on the sewing machine. Keep the distance between the two stitches to less than 10 mm. The other option is to sew a large bag patch of the same material over the broken area. The patch is created on a straight two-thread machine. The distance between the outer seam and the patch cloth must be at least 20 mm.

Have a look at our polypropylene bags on sale. Contact our team today for more information.

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