Bag On Valve - BOV

Bag-on-valve (BoV) packaging technology allows to place the product, be it solid or liquid, inside a protective bag, consisting in a laminated, heat-sealed multiply (aluminium and plastic) bag. This bag, the top of which is fitted with a dispenser valve, is contained inside an aluminium can. The system is completed by a dispenser button that, when pressed, activates the valve to release the product inside the bag.

In BoV packaging, the force that is exploited to dispense the product is again a compressed gas; however, in this case, the gas is not mixed with the product, rather it is pressurised into the space between the bag containing the product and the can containing the bag. This affords a number of advantages over conventional packaging, tubes or propellant sprays:

• the product does not come into contact with the pressurised gas, which is not an ingredient of the formulation.
• as it is not necessary to modify the formulation, BoV technology is far more versatile and can be used not only to package liquids (sprays), but also creams and gels.
• product dispensing is practical, uniform, complete (>99%) and possible in any position (360°).
• there is a reduction in the environmental impact, because the compressed gas is air or nitrogen and it is not released into the atmosphere during dispensing, which also prevents the cooling of the product that is associated with propellant sprays.
• the type of gas used, which is harmless and non-flammable, also makes BoV packaging safer.
• the product contained inside the BoV bag never comes into contact with the exterior, even after dispensing.
  Therefore, compared to a conventional tube it affords better protection, for example against atmospheric oxidation, longer stability and lesser need for preservatives. In the case of sterile preparations, sterility is preserved even after the first dispensing.