Flexible packaging is a packaging method using packaging material which consists of single or multiple layers with flexible characteristic (such as plastic film, paper, aluminum foil, and fiber). The most important thing in this packaging method is to select an appropriate material suitable for the given operation and object inside in order to preserve high quality. For example, material has to be chosen by checking if the object inside is subject to moisture, or if the object requires higher level of hygiene, or if the object is a food to be cooked by microwave oven. Therefore, component of the packaging material, physical, and chemical characteristic have to be considered. But, there are few materials that meet all requirement for object protection, quality maintenance, operation method, and manufacturing process. Meanwhile, flexible packaging meets most requirements by combining several materials together.
In addition, the packaging can be used as means to express image of company by considering esthetic aspect, while having economic advantage.