Physical protection: protecting the contents against severe shocks, pressure, temperature, etc
Barrier protection: barrier against oxygen, water vapor, dust, etc
Containment and Agglomeration: small items are placed together as a group in a package for shipping.
Information Transmission: often there are notes on usage, transport, and recycling of the product on the package or the package label.
Theft prevention; packaging which cannot be closed or that undergoes physical damage after being opened (exhibits signs of having been opened) is useful and effective in theft prevention.
Convenience: involves features that provide convenience of distribution, handling, exhibiting, sales, opening, reclosing, and reusing.
Marketing; packaging can be used by marketers to persuade potential customers to purchase the product.