Liner vs. Non-Liner Jumbo Bags – What’s the Difference?

When selecting the right jumbo bag (FIBC) for your bulk material handling, one major consideration is whether the bag should have a liner. Liners play a critical role in protecting contents, preventing leakage, and maintaining purity, especially in industries like food, pharma, and chemicals.

What is a Liner in FIBC Bags?

A liner is an internal layer made of polyethylene or aluminum foil that fits inside the FIBC bag. It provides an additional barrier between the contents and external environment. Liners can be loosely inserted or form-fit and are essential for fine powders, hygroscopic, or food-grade products.

Liner Jumbo Bags: Benefits & Applications

Moisture Protection: Perfect for moisture-sensitive items like sugar, starch, or flour.

Contamination Control: Commonly used in pharmaceutical and food packaging.

Leak Prevention: Ideal for powders, chemicals, and liquids that may seep through woven fabric.

Types of Liners: Conductive liners, aluminum liners, EVOH liners, and multi-layer liners for enhanced protection.

Non-Liner Jumbo Bags: When Are They Enough?

Non-liner jumbo bags are standard woven polypropylene bags without an inner lining. These are cost-effective and sufficient for solid granular materials such as sand, gravel, seeds, or minerals where moisture or contamination risk is low.

They are widely used in agriculture, construction, and mining sectors where the product isn’t reactive or sensitive.

How to Choose Between Liner & Non-Liner Bags

• Use Liner Bags if your material is fine, dusty, reactive, or food/pharma grade.
• Choose Non-Liner Bags for bulk solids with low contamination or moisture risk.
• Consider the cost difference if liners are not mandatory for your application.