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We’ve already shared with you how bag-on-valve (BOV) technology keeps the product separate from the propellant. But did you know about the importance and role of the multiple layers of laminates in the bag?

The concept of bag-on-valve technology is the combination of an airless one-way valve system and modern barrier pouch packaging. The BOV laminated films creates a barrier that prevents interaction between the product and the environment. This means oxygen, dust, contamination, light, mechanical impact, gas and moisture are not exposed to the product. The result is a protected and in some cases sterile product.

What makes the lamination films special?

The barrier laminations used in bag-on-valve typically consist of a four material layer with adhesives in between. Extensive research has gone into developing these laminates and each layer has a specific purpose that guarantees the chemical and mechanical resistance based on the filled product. Below is a graphic describing the layers of the lamination film used in a typical BOV product.

Barrier laminations used in bag-on-valve typically consist of a four material layer with adhesives in between

How are the laminates made?

The bag-on-valve laminated films arrives to the BOV component manufacturers in large rolls. In the bag-on-valve production process, the laminate is folded and welded into a pouch, which is then welded to the aerosol valve. This makes a hermetically sealed BOV package. Each BOV is then leak tested in the production line before being shipped to the customers for product filling.

The laminated films in BOV products from Aurena comes mainly from the leading laminate supplier Amcor. They are today the premier source of laminates for the international BOV-industry.

If you would like to partner with Aurena to manufacture your medical device into bag-on-valve packaging, please contact us to make it possible.

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