Polypropylene (PP) is the main consuming material of forming machines. These machines are composed of two parts: sheet making and pressing (containers production). Therefore, in addition to selling the final product of these machines, the produced sheets could be used in different industries. Since propylene is flexible and is not harmful to human body, disposable glasses are currently made by thermo-forming machines.
This process is especially effective for producing food containers with wide mouths, such as tubs, vials, jars, pots and trays. The plastic used is thin and light to hold the overall product easily. Yet its also durable, flexible and resistant to tears, chemical spills and other damage that can spoil the food inside. The process is relatively easy and simple. This allows for faster processing times and larger scale production for larger packaging projects.
Setting up a single-use container production line with an injection molding machine also provides great versatility regarding the type of plastic chosen. This enables the production of food containers with custom finishes, shapes, fasteners, colors, printing and custom branding. Common plastics or polymers used in the production of food containers include polypropylene, styrene and polyethylene. These have flexible properties, resistance to heat, chemicals and wear and tear, plus excellent hygienic integrity.
In addition, the insertion of the PS symbol indicates that it is made of polystyrene and such a container is in contact with hot and greasy foods due to the release of styrene carcinogenic monomer; therefore, these containers should not be used for food and hot drinks And fatty acids, and are used only for soft drinks and cold-fat foods. These containers are available in three types of polystyrene foam (EPS), expanded polystyrene (HIPS) and ordinary polystyrene containers (GPPS).
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