The manufacturing method of glass bottles is divided into molding and control. Do you know the difference between the two?
The term glass bottle is very broad, and people who don't understand this industry often don't have much idea. Looking at similar bottles, why are some so cheap and some very expensive?
The production methods of glass bottles are divided into two types: molding and control. There are three general differences, as follows:
, The manufacturing method is different: the control bottle is first drawn into a glass tube, and then the glass tube is used to make the bottle on a vertical turntable machine. The molded bottle is made of borax and quartz sand on the kiln line machine to make the bottle. Yes, the control bottle does not use molds, only two sets of mold wheels are used, and a complete set of molds is required to mold the bottle.
, the appearance is different: the outer surface of the control bottle looks brighter, the transparency is better, and the molded bottle is rougher.
, the material is different: the control bottle is generally low borosilicate in China, but high borosilicate and medium borosilicate can also be made, and the molded bottle is soda lime glass, because the material is inferior to the control bottle in drug resistance and acidity. Freeze-drying of control bottles is better, while molded bottles cannot be freeze-dried.
After reading these, you should be able to easily distinguish between regulated and molded glass bottles.
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●Design team: cosmetics packaging design
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You'll understand after reading this article!
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