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Bulk Bag Glossary

bulk bag

Bulk Bag Glossary You Need to Know

Each product has its own terms, which are convenient for people to understand the product and facilitate communication with customers. The following will show you some commonly used bulk bag terms.

Main fabric used for U-panel, four-panel or round bag bodies.

Height dimension of an FIBC measured from the top Seam to the Bottom Seam.

Reinforced fabric loops on top of bulk bags for lifting and handling using a forklift, crane or sling. Usually four hanging rings, there are also two hanging rings, side seam rings or additional cross beam straps.

Also called the feed port, it is the entrance that allows goods to enter the bag. It can generally be stored with the mouth tied.

Also called a Discharge Spout, used as an outlet to empty the contents of the FIBC.

Typically made of either polyethylene or polypropylene, it is where shipping or identifying documents are usually placed. Also called a Pocket or Envelope.

 A type of spout construction similar in purpose as to a petal closure, but with the loop/string along the circumference of the closure.

A measure of fabric weight in grams per square meter.

Also called big bags, jumbo bags, or ton bags. A large container used to store and transport bulk materials such as powders, granules or granular materials, usually made of soft polypropylene fabric.

A removable plastic liner installed inside a bulk bag to protect materials from moisture, contamination or leakage.

Uncoated or laminated bags.

Bags coated/laminated with polypropylene PP to prevent moisture ingress and contents leakage.

Fabric panels at each corner of a tubular or four-panel bag to improve the squareness and appearance of the bag, increase load stability and make more efficient use of storage or shipping space.

Bulk bags specifically designed to safely discharge static electricity, often used in industries that handle flammable materials to prevent the onset of fires.

Bulk bags are treated with additives to resist UV exposure without breaking down, extending their lifespan in outdoor or sun-exposed environments.

 SWL is the amount of load, (in pounds or kilograms), which a bag is designed to carry. Note: Most customers use the metric system where 1 ton equals 2205 pounds or 1000 kilograms.

Also referred to as a Service Factor, it is an industry standard requiring the FIBC to handle five or six times its Safe Working Load, (SWL), normally written as a ratio, “5:1 or 6:1 SF”.

Prevents product leakage when bags are filled with very fine materials. Also known as “leak proof” construction. This is typically done using coated fabrics and stuffed threads in sewing threads.

Patterns printed on the surface can be used to identify the content, weight, production date, manufacturer and other information of the goods, or for brand promotion and advertising.

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