Fibc/Jumbo bags

U-panel

A U-panel bag is a step up from a circular bag, as it will have two pieces of fabric resembling a U shape that are sewn together to make the shape of the bag. It will maintain its square shape much better than the circular style.

Four-panel

The four-panel bag is the best bag for staying square other than a baffle bag. It is made of up four pieces of fabric that make up the sides and one for the bottom. These are all sewn together which resists the stretching tendencies of the bag and holds it in a cube shape much better.

Circular

This style of bag is made on the loom as a tube and is the lowest standard of FIBC. It will not maintain its shape when loaded and will sit down and bulge out in the middle. It will resemble a tomato when loaded, as the product will stretch the fabric when it is subjected to the pressure of the product being loaded. Normally it would have cross corner lifting loops.

Baffle

This style will be the best at keeping the cube shape of your product when the bag is loaded. It has additional baffles sewn down each corner to act as a pocket to fill each corner. In addition, there are other pockets sewn on each side for all the product to gather around the baffles and pockets. These are perfect if you have a small diameter product such as soybeans which can flow through the baffles without getting hung up. These bulk bags will be easier to stack as they will make a nice square cube.

Specialty bags

Pharmaceutical – similar to food-grade certifications
UN certified – will have to undergo many tests to ensure it can withstand the stress and still eliminate spillage of hazardous material
Food Grade – has to be manufactured in a clean room environment which is BRC or FDA approved
Ventilated FIBC – used for potatoes and other fruits/vegetables for allowing the product to breathe