The rapid growth in Europe in the manufacturing of FIBCs occurred in the mid 1970s during the oil crisis. The oil-producing countries building program required large quantities of cement. The demand for cement was shipped in FIBCs at the rate of 30,000-50,000 metric tons per week from Northern Europe, Spain, and Italy to the Middle East.
The demand for bulk bags in the United States grew slower than in Europe until 1984, when the U.S. Department of Transportation (DOT) agreed to grant exemptions for the shipment of hazardous products in FIBCs. Performance standards for FIBCs were established and issued by the Chemical Packaging Committee of the Packaging Institute, USA under T-4102-85. These standards were used to obtain exemptions until DOT included flexible containers with the other types of IBCs in the Title 49 CFR for hazardous products.
Flexible intermediate bulk containers offer features that are unique. It can be folded flat and bailed for shipment to the user. The weight of a bulk bag used to ship one metric ton of product weighs 5-7 lbs, offering a low package: product weight ratio. The cost of FIBCs is competitive with other forms of packaging as it is usually utilized without pallets. They are easy to store and handle in warehouses with standard equipment. When shipping by boat the FIBCs are gang-loaded with up to 14 bulk bags on a spreader bar, and are shipped as break bulk.
The standard filled diameter of FIBCs is 45-48 in., designed to fit two across in a truck or a shipping container. Special configured containers are made to meet specific requirements of the container user.
FIBCs are manufactured to meet specific requirements of the users. The height of the container, the diameter and length of the spouts, coated or uncoated fabric, and whether a polyethylene liner is necessary will be specified according to the type of product that will be shipped.
When hazardous products are shipped in FIBCs, the UN mark for the product must be printed on the container body. In the United States the manufacturer or a third party lab may certify the container according to the regulations in Part 178 of the Title 49 CFR. All other countries require a third party lab to certify the container.
FIBCs containing non-hazardous or non-regulated product when shipped export from the United States must have performance testing certification if destined for a country that requires performance standards for bulk bags.
This material is used by permission of John Wiley & Sons, Inc.
A. Brody and K. Marsh, “Flexible Intermediate Bulk Contains,” Wiley Encyclopedia of Packaging Technology, 2nd Edition, Wiley-Interscience, New York, 1997, pp. 448-449. Copyright © 1997 John Wiley & Sons, Inc.