Three functions of packaging are:
(i) Product Identification: Packaging greatly helps in identification of the products. For example, Colgate in red colour, or Ponds cream jar can be easily identified by its package.
(ii) Product Protection: Packaging protects the contents of a product from spoilage, breakage, leakage, pilferage, damage, climatic effect, etc. This kind of protection is required during storing, distribution and transportation of the product.
(iii) Facilitating Use of the Product: The size and shape of the package should be such that it should be convenient to open, handle and use for the consumers. Cosmetics, medicines and tubes of toothpastes are good examples of this.