For plastic bottle glass bottle both packaging. They have always been mortal enemies, and in the market they are a trade-off. For cosmetic packaging bottle manufacturers, choosing one of these two types of packaging must accept the shortcomings of this packaging. For plastic bottles, packaging materials have become more and more abundant in recent years, and blow molding technology is also constantly improving. It may be a good choice to solve the problem that the advantages of the two cosmetic containers of plastic bottles and glass bottles cannot coexist in plastic bottle packaging.
Glass is an amorphous inorganic non-metallic material, generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, and a small amount of auxiliary raw materials are added. of. Its main components are silica and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2, etc. The main component is silicate double salt, which is an amorphous solid with random structure. It is widely used in buildings to block wind and light, and belongs to a mixture.
There are also colored glass mixed with oxides or salts of certain metals to show color, and tempered glass obtained by physical or chemical methods. Sometimes some transparent plastics (such as polymethyl methacrylate) are also called plexiglass.
We all know that the appearance of cosmetic container packaging has effectively solved the problem that the appearance of plastic bottle packaging is not high enough. This kind of packaging looks like glass bottle packaging and has the advantages of plastic bottle packaging, so it is very popular among cosmetic container manufacturers and is the current cosmetic product. Mainstream type of packaging. One thing about plastic bottles is the safety of the preheating of plastic bottle packaging. Whether the internal structure of the plastic bottle will be unstable due to high temperature and release substances that are harmful to the human body, this has always been a concern of many consumers.
