In everyday life, we can never be separated from plastic. Since plastic material was first discovered by Alexander Parkes in 1855, humans have used plastic for various aspects of life. Starting from household necessities, automotive to the clothes we wear are also made of plastic.
One of the uses of plastic that we often encounter today is as a packaging material. But do you know, it turns out that plastic packaging materials are divided into categories according to their characteristics. In general, plastic packaging is divided into 2 categories, namely flexible and rigid.
Flexible plastic packaging is plastic packaging that is sheet and flexible, which is generally divided into 2 parts:
- Single layer (one layer) : consists of only 1 type of material, such as plastic bags, trash bags and so on
- Multi layer (more than one layer) : consists of several types of materials that have several functions for each layer, including the printing layer, barrier layer, and sealing layer. Examples of multi-layer packaging include sachets (powder product packaging, packaging, snack etc.), standing pouch and others according to the designation of the product packaging to be packed.