What Is Bag On Valve Aerosol Technology?
What is bag on valve aerosol technology?
Many people think that “aerosol” refers to the propellant used to push the product out of the valve.
However, an aerosol is the suspension of fine solid or liquid particles in a gas. So, “aerosol” actually refers to the product that is dispensed.
Traditional aerosol cans mix the propellant and the liquid product when sprayed. With bag on valve (BOV) aerosol cans, 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 BOV technology. This separation also means that there is no need for the use of preservatives, which ensures product purity. However, it also means that BOV technology does not work for any products that need to be shaken before use.
Benefits of BOV aerosol cans include:
• Up to 99% of the product is emptied.
• The product is protected from oxygen exposure, which increases its shelf life.
• The product can be sprayed from any angle, even upside-down.
• There is no chilling effect to the product when it is dispensed.
• The product can be dispensed in any form, such as liquid, foam, gel, or cream.
• Aerosol cans are hygienic and sterile because there is no need to touch the product.
