Plastic films are a type of packaging material made from polymers, such as polyethylene terephthalate (PET), polycarbonate, and polypropylene. They are used in a variety of applications, from food packaging to wrapping products. In this article, we will discuss the different types of plastic films and their uses.
Polyethylene terephthalate (PET)is the most economical material for plastic films.
It is flexible, soft, transparent, shiny, and has a high resistance to moisture, tearing, and chemicals. It is most commonly found in plastic bags, but is also widely used for squeezable food bottles, bread and frozen food packaging, and flexible lids.
Polypropylene (PP)is not as transparent as PET, but it is translucent. It lets in light, but you can't see clearly through it.
Polypropylene has high optical clarity, high gloss, good tensile strength, and low cost. It also has good barrier properties and a high melting point, making it ideal for items that need high-temperature sterilization, such as baby bottles. It is commonly used for salad dressing bottles, yogurt containers, margarine tubs, and microwaveable kitchen utensils.
Cellulosic-based polymer, also known as acetate film, is one of the oldest types of materials used to make plastic films. It is often used to wrap many products such as paper plates, napkins, toilet paper, diapers and more.
CPETis more flexible than other types of plastic films and can withstand higher temperatures.
This makes it suitable for producing plastic food trays that are used in conventional ovens, microwave-safe dinners, oven-proof plastic wrappers, microwave-safe storage containers and more.