Container Glass
Container glass means all type of glass bottles and jars used for beverages e.g. juices, soft drinks, carbonated drinks, pharmaceutical, Cosmetics, Perfumes and Foods.
Glass containers are mostly intended to come into direct contact with the inside content. Therefore they must comply with their respective specifications for identity and surface hydrolytic resistance to be classified as Type I, II and III glass.
Glass used for container glass is either soda-lime-silica glass or Borosilicate glass ( neutral ). Soda-lime-silica glass has a moderate hydrolytic resistance due to the chemical composition of the glass itself; it is classified as Type III.
Suitable treatment of the inner surface of Type III soda-lime-silica glass containers will raise the hydrolytic resistance from moderate to a high level, changing the classification of the glass to Type II.
Borosilicate glass contains significant amounts of boric oxide, aluminum oxide, alkali and/or alkali earth oxides. Borosilicate glass has a high hydrolytic resistance and high thermal shock resistance due to chemical composition of the glass itself; it is classified as Type I.
Container glass plant from Technology point of view consist of following major parts:
- Raw Material preparation
- Batch Plant
- Melting Furnace
- Forming machine
- Annealing Lehr
- Surface Treatments
- Cold End lines
- Inspection machine
- Decorating machine
- Decorating Lehr
- Palletizing & Packaging
- Utilities