Making a glass bottle begins with taking molten glass and forming it into an initial shape called a parison using specialized machinery and pressure.
The Initial Forming Process
The creation of a molded glass bottle starts in a specific forming machine. This process involves carefully handling molten glass at high temperatures to shape it into the desired form.
Creating the Parison: Key Steps
As described in glass forming methods, the initial stage involves taking the raw, molten glass and preparing it for shaping.
Here are the key steps in this part of the process:
- Feeding the Molten Glass: Gobs of molten glass are introduced into the forming machine, typically through gravity feeding.
- Forming the Shape: Inside the machine, pressure forms the neck and basic shape of the bottle. This critical step establishes the initial dimensions and features.
- Achieving the Parison: Once the neck finish and the general glass bottle shape has been achieved, this partially formed state is known as a parison.
Understanding the Parison
The parison is essentially the intermediate stage in glass bottle manufacturing. It has the basic outline and the crucial neck details of the final bottle, but it is not yet fully formed. It serves as the blank or starting point that will subsequently be shaped into the finished glass bottle.
