Views: 4 Author: Site Editor Publish Time: 2021-04-02 Origin: Site
Injection molding machine
The transparent box is the polypropylene PP material in plastic, which is produced by injection molding.
The opaque foamed plastic case is polystyrene PS, produced by the foaming method
Disposable fast food box:
Disposable fast food boxes have been transformed from foam boxes to environmental protection boxes, the original foam boxes due to high temperature resistance, and the production process caused damage to the environment and have been eliminated, take and wait for plastic boxes, paper boxes, wooden boxes, degradable boxes...And so on.Among them, because of its low toxicity, higher melting point, strong plasticity, simple production and relatively low cost, it has become the mainstream material for the manufacture of disposable fast food boxes.
The disposable meal box made of plastic mainly has PP polypropylene and PS polystyrene two kinds, are non-toxic, tasteless and odorless:
PP is soft, the general PP use temperature is -6 degrees to +120 degrees, so it is especially suitable for hot meals.
PS is hard, transparent, but easy to tear. PS begins to become soft when the temperature reaches 75 degrees, so it is not suitable for hot rice and hot dishes. But PS has good low temperature performance and is the best packaging material for ice cream.