FIBC bulk bags are used for transporting all types of materials, including powders, granules and other dry, flowable goods. These flexible bags are ideal because they are easy to fill, load into trucks, and transport. Their unique design is more than just for good stacking; FIBC bulk bags are safer than other types of shipping methods. Even within the FIBC bulk bags category, there are different classifications for meeting specific needs. Here are some recommendations for storing each type.
Storing Filled Bags
The most common objects stored in FIBC bulk bags are powders and granules. Static electricity can build up when filling bags with powders or granules, or when bags rub together. To keep yourself safe, make sure you use a CROHMIQ® Type D FIBC bulk bag. The quasi-conductive fibers built into the fabric of the bags help protect the contents by discharging the energy safely into the atmosphere with a process called corona.
Static electricity can also build up when bulk bags rub against each other during storage or transport. Type C FIBC bags need a grounding connection to dissipate the electricity from the bags. If you use this type of bag to package flammable or combustible products, make sure the grounding connection is always present during storage and transport. Grounding is not necessary with CROHMIQ Type D bags.
The only products that can be safely transported and stored in Type A and Type B bags are those that cannot be ignited by static electricity and will not be emptied into flammable liquids.
Flammable powders can be susceptible to spontaneous combustion when left in a hot area. When storing, keep all FIBC bags out of direct sunlight and away from other sources of heat . Prolonged exposure to UV rays can also weaken the strength of the fibers in bags, which can lead to bags rupturing. When heat builds up, it can leave the products at risk of spontaneous combustion. Make sure the bags have enough air flow around them and the room has good ventilation.
Along with ventilation, all bags should be kept in a dry area. Moisture on the outside of bags can lead to potential contamination and damage to the bags. Keep the filled bags away from sharp objects too.
When it comes to stacking the bags in an open area, it is recommended to use the Pyramid Stacking Method. A pyramid is created by stacking each bag above the first layer so that it is in contact with four adjacent bags in the layer below. Each layer has fewer bags than the one below, and layers are tiered to form a pyramid. A Supported Stack can be formed by stacking bags against two retaining walls, but make sure the walls are strong enough to support the stack.
The last tip is to keep the filled bags on pallets that are large enough so that there are no overhanging areas. Without the proper support underneath, you risk dumping over the bags.
Storing Empty Bags
While filled bags tend to get the most attention, companies can prolong the life of their bags by keeping them protected when empty too. It is still important to keep bags out of the sunlight. Keep them clear of moisture to prevent mold and mildew building up in the fabric. This may require laying them out to air before storing. Other tips include:
- Store bags in a clean facility, free of nails, sharp objects, and contaminants
- Keep them covered, in an enclosed spot to keep dirt and dust away
Another good practice is to check bags for any damage before storing them away. Since most people are in a bigger hurry to pull them out and fill them, it’s easier to check them when putting into storage. If you find an inspection system that works for your company and employees, that is what is most important.
If you have any other questions on proper storage of FIBC bulk bags, feel free to contact us. We are happy to give any more clarity to help keep your company and employees safe.