Airless packaging of liquid products has become a cornerstone in industries where product integrity, longevity, and precise dispensing are critical. Among these packaging options, Bag-on-Valve (BoV) technology stands out as an attractive solution, offering some unique advantages.

Bag-on-Valve is designed to keep the product completely isolated from external air. It uses a flexible, multi-layered laminated bag housed within a standard aerosol can. The product is sealed in the bag, while compressed air or nitrogen occupies the space between the bag and the can. When the actuator is pressed, the pressurised gas squeezes the product out through the valve without any air entering the packaging. This makes BoV a true airless system, ensuring that the product remains free from oxygen, contaminants, and microbial exposure, even after repeated use.

What is Bag-on-Valve Technology?

Bag-on-Valve technology is an advanced aerosol system where the product and propellant are separated. The core components of the system include:

1. Flexible Laminated Bag: A multi-layered pouch) that contains the product, protecting it from oxygen and contaminants.

2. Aerosol Can: A standard aluminum houses the bag and provides structural stability.

3. Propellant: Compressed air or nitrogen is used as the propellant, filling the space between the bag and the can.

4. Actuator and Valve: These components control how the product is dispensed.

When the actuator is pressed, the propellant exerts pressure on the bag, dispensing the product through the valve without it ever coming into contact with the propellant. This mechanism ensures the product’s integrity and in some cases sterility, even with repeated use.