Quartz sand, limestone, feldspar, soda ash, boric acid, lead compounds, barium compounds are all available.
There are national standards for glass bottle quality that can be used as a basis. A large percentage of glass bottles are used to hold food and beverages, and the requirements for such glass bottles are not only the general indicators such as appearance quality, but also the thermal and chemical stability of the products. Because of the high temperature sterilization of glass bottles before filling, so for these products to emphasize a high degree of thermal stability. Containing pickles, curd and other products, in order to preserve the quality of the glass bottle with a reliable chemical stability. The quality of our glass products varies, and as a user it is impossible to conduct a comprehensive quality inspection of every bottle. So in order to ensure quality, we suggest you choose a quality trusted supply manufacturer, such as OI’s glass factories in Guangzhou, Shanghai, Wuhan and Tianjin, China, which can fully meet your quality requirements. There is also no need to sign a separate quality guarantee, as long as it is stated in the supply contract.
The various materials used to prepare glass compounds are collectively referred to as the raw materials of glass. Roughly 7-12 kinds of composition, the main material has 4-6 kinds, such as quartz sand, limestone, feldspar, soda ash, boric acid, lead compounds, barium compounds, etc., according to the role of the introduced oxides in the structure of the glass, can be divided into the raw materials of the glass forming oxide, intermediate oxide raw materials, the raw materials of the network outer body oxide, according to the nature of the introduced oxides, can be divided into the raw materials of acidic oxides, alkali metal oxides of raw materials. With the material is to make the glass to obtain certain necessary properties and accelerate the melting process of raw materials, although the amount is small, but the role is really very important, these auxiliary materials are divided into clarifiers, fluxes, colorants, decolorizers, emulsifiers, oxidizers, reducing agents, etc..
The same raw materials of different formulations, the same raw materials of different origins and different content of the relevant indicators, will affect the quality of the product and production costs. In the case of raw material cost disparity is not large, the production of glass bottles in the comparison of small samples identified, it is difficult to have a significant difference, only in mass production to see the difference.