The primary raw materials are used in manufacturing glass bottles are Sand, Soda ash, Limestone and Cullet..
The glass bottle production process is a continuous process so batching also done continuously to feed the furnace. The continuous feed of raw material to the furnace is done by belt conveyer until the furnace beginning.
Every batch of the raw materials fed into the furnace will be heated and melted, and continuously send to the next process.
Soaking or Clarification
A part of the composition may not be melted because of the rapid heating, so to make sure everything is melted the composition is maintained at peak temperature for 3 to 8 hours based on the composition
The Molten glass is cooled to lower temperature to make the viscous condition. Because if the glass is fluid like condition is difficult to blow into the required shape. Once it is cooled, it will become a viscous state then it is sent for the feeders.
When the glass container is formed, the outside surface cools more rapidly than the interior side, causing stress in the glass
Cold end Coating
A thin layer of polymer is applied to the glass container. The temperature of the polymer coating lies around 100-degree Celsius.
All glass containers are checked for any foreign contamination in the glass and air bubbles in the glass
The inspection is done at multiple levels. Both automatic and manual checkings are done to ensure the product quality is perfect for the customers.
All the good bottles are packed based on the customer requirement. Usually, glass bottles are wrapped in a cardboard box which has multiple segments separated by corrugated sheets. Packing is done by automation to avoid any damage during preparation