The term 'packaging plastic' is often used to refer to a type of plastic wrap called Saran, which is a trademarked brand name. Saran is a thin, transparent film made from polyvinylidene chloride (PVDC) that is used to protect food and other items from moisture, dust, and bacteria. It is also used in the packaging of many consumer products, such as electronics and toys. Saran is an effective barrier against water vapor, oxygen, and other gases, making it an ideal choice for food storage and preservation.