Bag on valve technology is a new trendy packaging technology for aerosol products.

It is a multi-protective packaging system consisting of aerosol valves, vacuum bags, tin cans or aluminum cans, actuators, caps.

The material agent and the propellant are packaged separately in their respective containers, which reduces the complexity of the formulation and does not release the propellant during using, reducing the impact on safety and the environment. It is a safe aerosol packaging technology.

Traditional aerosol packaging mix the propellant and the liquid product when sprayed. With a bag on valve technology, the product and the propellant are separated so only the product is dispensed.

The bag is welded to the aerosol valve and then shoved inside the can which is made of either aluminum or steel. The product is squeezed into the bag, while the propellant is filled into the space between the can and the bag.

When the actuator is pressed, the product is squeezed out of the bag by the propellant. Because of the separation of the product and the propellant, liquids, creams, and gels can all be dispensed with a bag on valve technology.

This separation also means that there is no need for the use of preservatives, which ensures product purity.

However, it also means that a bag on valve technology does not work for any products that need to be shaken before use.