Among all kinds of glass bottles, in addition to the colorless and transparent glass bottles that we often see in our daily life, there are also many colored glass bottles, including brown glass medicine bottles, green beer bottles, and blue square bottles. Wait. Various colors dress up modern glass bottle packaging.
Ordinary glass bottles are smelted with quartz sand, soda ash and limestone. It is a mixture of silicates whose composition is not fixed. The first glass people made were small pieces of glass with poor transparency and some color. Its color is not consciously added by people, but the result of the impure raw materials used and the impurities mixed in. At that time, the colored glass bottles were only used for decoration, and the requirements were not high, and people only produced colored glass by accident. But the color glass we require today has very high scientific requirements, which can only be produced after the secret of the color of the glass bottle is revealed.
For example, adding cobalt oxide (Co2O3) when making glass square bottles can make blue square bottles, which are very suitable for glass packaging for lotions and perfumes. Bottles of all shapes and sizes have continued to improve and innovate throughout the history of glass bottle manufacturing.
