FIBC Bag: Type A, Type B, Type C & Type D

The choice of the right material for FIBC bags is a matter of Huge importance for keeping the functionality of the bags at its best. The right material is extremely important for the manufacturing process to come up with the intended results. Thus, it can be clearly understood as to how important role the material plays in the manufacturing of the bags. The four common types of FIBC available in the market are Type A, Type B, Type C and Type D. For each of these different types of bags, the material is appropriately chosen depending on the overall environment of manufacturing plant and the products to be kept in it. These bags are usually made up of woven propylene. After that a coat of a synthetic film is applied to the bags which is actually a mixture consisting of polyethylene and polypropylene. So, here it is detailed below about the selection of the right FIBC bag material for the purpose of meeting the needs as well as requirements.

Type A Bags:

Type A FIBCs are made of plain-woven polypropylene and other non-conductive fabrics. Static electricity is generated as products move over or rub against the inside surface of the bulk bag when they are filled/emptied. There is no static protection provided by Type A FIBCs

• Type A FIBC bags can safely be used for the transportation of non-flammable products.
• Don’t use type A Bag When flammable solvents or gases present around a Type A FIBC.
• Do not Transporting flammable products.

Type B Bags:

These FIBCs made from materials that have a low breakdown voltage to prevent an incident where highly energetic, and dangerous propagating brush discharges occur. This is quite effective for the prevention of explosive dust-air mixtures from igniting. However, these bags cannot dissipate static electricity and hence cannot be termed as ‘antistatic’.

• Type B FIBC bags are best for the transportation of transport dry, flammable powders. They can be transported very safely.
• However, ensure that No flammable solvents or gases present around the bulk bag.
• Type B FIBCs do not have any interwoven materials with conductive properties.
• used in environments with dust with ignition energies.

Type C Bags:

Type C FIBCs are made from non-conductive polypropylene fabrics interwoven with conducting threads, normally sewn in a grid pattern, that connect the bag to ground via a grounding point. The connection to ground or earth during filling and discharging is critical to the safe use of Type C FIBCs. As with any manual operation, ensuring interconnection and grounding of Type C FIBCs is subject to human error.

• Flammable powder substances can be safely transported in these Type C FIBC bags.
• Also, these Type C FIBC bags can be used safely in the presence of gases or solvents which are flammable.
• Don’t use type C FIBC bags When ground connection is not present or has become damaged.

Type D Bags:

These are also known as Dissipative FIBC bags and are generally made from material which is antistatic in nature. It is composed of antistatic and static dissipative yellow threads. These bags do not really require to be grounded.

• Type D FIBC bags are most commonly used for the transportation of flammable powder substances.
• These materials prevent incendiary sparks from taking place.
• They should never be used in cases where the surface is covered in grease or water because these are conductive materials.