If you are looking to create a number of packages for different items, there are some important factors which must be considered in the process of manufacturing and packaging. The packaging plays a key role in the determination of whether the product will be purchased or not. Therefore, you must make sure that the package is strong enough and does not break with a simple strike. Also, the packaging that you provide must be durable and appealing to attract customers.
Considering these, thermoforming is a great process to form plastics into different shapes. Basically there are two forms of thermoforming: light gauge and heavy gauge.
Details of thermoforming
When a thermoplastic sheet is heated to its softening point the process is known as thermoforming. The sheet is stretched on a single sided mould and then it is manipulated. The soft or semi-molten thermoplastic is left aside for cooling to give the desired shape. To conform the sheet into its final shape some of the most common methods are: pressure forming, vacuum forming and mechanical forming. There are lots of applications of thermoforming and thus, can be used by a number of industries.
Key terminology of thermoforming
You should be familiar with some specific terminology which is used in the process of thermoforming. It’s important to know about the differences to bring your project into a successful end.
Thermoforming: The term thermoforming actually means the process of transforming a plastic sheet and bring a 3-dimensional shape with the help of pressure, heat and vacuum.
Thermoplastic: Thermoplastic is a type of plastic that is made from polymer resins which further become homogenized after getting heated.
Vacuum forming: It is a type of process that forms a structure by heating and stretching the plastic onto a mould. Usually, the mould is kept open and the force of the vacuum is limited to about 15 psi.
Pressure forming: This process involves a pressure box that utilises both vacuum and positive air pressure. In this process the pressure is three to four times more than vacuum forming. This means fine details like surface textures can be easily formed without the needs of extra costs.
Twin sheet forming: In this process there are two moulds placed against each other. One is placed on the top and other at the bottom. In the process of twin sheet, two sheets of plastic can be heated and shaped at the same time.
Thermoforming is a great plastic formation and shaping technique that caters important needs of plastics in our everyday life.