Polystyrene containers are commonly known as disposable containers that have been used in recent years. These dishes are produced in different types. These dishes are different in terms of flexibility and strength, color, and formability. These containers are made of styrene monomer, which is a kind of fragrant polymer. Join us to get acquainted with the structure and production method and features of these products.
Methods of production of polystyrene containers
Familiarity with HIMPAC polystyrene containers
HIGH IMPACT polystyrene containers have a matte color that tends to be white. In some cases, it is observed that these dishes are offered in color, in which case they combine white with the desired color.
HIMPAC polystyrene containers have more softness and flexibility in terms of flexibility compared to other types of disposable containers. These containers are largely cracked and broken due to crushing and excessive pressure.
This model of containers was used in the past to package dairy products. At present, these dishes are also used as dishes for doorless foods, white juice containers, and to some extent in the dairy industry.
Crystal polystyrene containers
These polystyrene containers are transparent and colored glass. This type of container has high strength and is more hard compared to HIMPAC containers, but it is fragile. If this type of container is pressed, it will break. Therefore, due to the high fragility of this type of container, it is not used in special packaging.
This type of container is usually used for liquids. These dishes are used in a rectangular shape for salads. It is now common to use other plastic containers with other materials that are less harmful than polystyrene.
Polystyrene Dishes
Introduction of polystyrene container production methods
Semi-forming polystyrene container production system:
The semi-forming system performs all the production operations performed in one machine in order. The production process of these containers is such that the raw material is in the form of petrochemical granules in a part of the production line which is known as extrusion.
These materials are melted and then the heated sheets are inserted into the presses before the sheets cool. Then, the production process is performed under the molds. The remarkable thing about the production of these containers by this machine is that only polystyrenes can be used in two types of crystals and HIMPAC.
Disposable polystyrene containers with thermoforming system:
This method of making a disposable container is more modern and advanced than the previous method. In this method, two machines are used, the first of which converts the raw material of the granule into a sheet and then rolls it into a roll. Using a second machine known as a thermoforming press, the sheets produced pass through heat furnaces and reach the required temperature. It is then pressed into the machine to form.
Disposable foam containers:
These containers have a high resistance to brittleness, which uses polystyrene to create this feature. These dishes are used for hot food.
The remarkable thing about disposable foam containers is that they tolerate heat better than clear or glass disposable containers.
This model of disposable containers is considered the healthiest type. Due to this feature, compared to other disposable containers, they have the lowest percentage of absorption of substances and chemical contaminants. This has made this type of dish popular among people and restaurants and food service centers.
To make disposable tableware, a plastic polymer called styrene is used, which is based on styrene monomer. In recent years, the issue of the pathogenicity of these products has been raised a lot; Therefore, to be more sure, people should pay attention to the name of the company that produces these dishes. Then make sure that the Food and Drug Administration logo is there and make sure that the health of the ingredients used in these containers has been tested.