Bag-on-valve (BOV) is a packaging technology that allows for the dispensing of liquid and semi-liquid products in an aerosol can. The main component of a BOV system is a flexible bag made of plastic, which is placed inside a metal can. The bag is separated from the propellant by a valve.
When the valve is actuated, the propellant, which is typically a compressed gas such as air or nitrogen, pushes the product out of the bag and through the valve. The product is then dispensed into the air as a fine mist or spray. Because the product is contained in a separate bag, it is not in direct contact with the propellant, which reduces the risk of contamination and allows for a longer shelf life.
BOV technology is commonly used for dispensing personal care products such as hair spray, sunscreen, and insect repellent. It is also used for food products like whipped cream, cooking sprays, and salad dressings.
One of the main advantages of BOV technology is that it allows for more consistent and controlled dispensing of the product compared to traditional aerosol cans. Because the product is not in direct contact with the propellant, the amount of product dispensed is not affected by changes in temperature or pressure. This means that the product is dispensed at a consistent rate, which is especially important for products that are used in precise applications like hair styling or cooking.
Another advantage of BOV is that it is more environmentally friendly than traditional aerosol cans. The metal cans used in BOV systems are recyclable and the flexible bags are made of plastic which can be also recycled.
In summary, BOV is a packaging technology that allows for the dispensing of liquid and semi-liquid products in an aerosol can, with a flexible bag inside the can to separate the product from the propellant. This allows for consistent and controlled dispensing of the product and also it’s an environmentally friendly solution.