When it comes to plastic food packaging, the most commonly used in our daily life should be disposable take away packaging. Such as plastic lunch box, plastic bowl, plastic cup and so on. While among these plastic packaging materials, most people know only PP (polypropylene). because PP is the most widely used material in this field, and it is absolutely the leading position.

So why is PP the most widely used material? There are several reasons as below:

1. Material properties: Easy to thermoplastic molding, stable performance after molding, good toughness, not brittle. All these are its advantages. So it can be used in indoor and outdoor environment for a long time after molding.

2. Low processing cost: In terms of the processing of disposable plastic cup, compared with PET / PLA and other materials, PP does not need to be crystallized and dried in advance. After mixing directly with the secondary recycled material in a certain proportion, the plastic sheet (thickness range 0.2-2.5mm) can be processed by ordinary single screw extruder. In this way, a processing link is saved, so the processing cost is relatively low, which is conducive to its wider application.

3. Low material cost: In fact, it is because of its wide application and mature process, which in turn reduces its comprehensive cost, so the processing of PP raw materials is relatively low. According to the current market price, the unit price of a ton is about 6500-7000 RMB, equivalent to only about USD 1000.

4. Recyclable and mature recycling mechanism: Like most plastics, PP can be recycled many times. And it is widely used, people can easily identify it, so the difficulty of recycling is not high. After so many years of use, we have long established a mature recycling mechanism.

All of the above are the reasons why PP is widely used in daily life, especially in food plastic containers packaging. Our plastic sheet extruder, plastic cup thermoforming machine (can also produce other plastic food containers), plastic cup packaging machine can be applied to PP, HIPS, PET and other degradable materials. And PP is still the most widely used one. If you are interested in the production process of plastic food packaging containers, you can find out more details through the product page on our website（ website: www.sowayne.com ）