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Primary packaging

Primary packaging is the term used to designate the layer of packaging in immediate contact with the product; in other words, it is the first packaging layer in which the product is contained.

As such, primary packaging is constructed both with the product itself and any existing secondary layers of packaging in mind. The properties of the product (form, dimensions and consistency) evidently dictate the main priorities of primary packaging.

Primary packaging can have diverse applications and functions, depending on the product, and transit and storage variables. The most obvious, and important, function is to protect and preserve the product from damage, external interference or contamination, spoiling and chemical imbalances.

Primary packaging also serves to keep a product in storage, often for long periods of time. In this case, it is imperative that primary packaging keep the product absolutely sealed off from its environment.

Ease of handling and shelving is a further aspect of primary packaging to be considered, so as to ensure the product can be easily handled by consumers.

The examples of primary packaging are as limitless as the range of available consumer products. Some of the most common types include blister packs, clamshell packaging, shrink-wrapping, paperboard packaging, unit dose packs and many more.