How Glass Perfume Bottles Are Made?

How glass perfume bottles are made: You may be addicted to crystal-like glass bottles, or you may know that clear glass comes from stone, but you may not know how rough stone makes fine glass.

Generally speaking, the manufacturing process of glass perfume bottles can include: batching, melting, forming, annealing inspection, and decoration.

The steps are as follows:

According to the well-designed material formula, the selected various raw materials are weighed and mixed well in the mixer. The main raw materials of glass perfume bottles are silica sand (SiO2), sodium oxide (Na2O) in soda ash, calcium oxide (CaO) in limestone/dolomite, and dolomite (MgO), feldspar (Al2O3) and other processing materials.

Melting is a very complex physical and chemical reaction. All the raw materials of the perfume bottle are heated at high temperature in a furnace to become homogeneous glass without bubbles and finally melted.

In the manufacturing process of glass perfume bottles, there are mainly two kinds of furnaces. One is the crucible furnace. A small kiln can hold one crucible, while a large kiln can hold more than 20 crucibles. The truth is that only optical glass and tinted glass are made in kilns.

The other is the boiler. There are two ways to melt the raw materials for glass perfume bottles in such a furnace. One is to use an open flame with a temperature from 1300℃ to 1600℃ to melt on the surface of the molten pool. The other is flame heating, which is heated together with an electric current, called an electric furnace.

This step is to transform the molten glass into a fixed shape with a solid model. Glass can be formed within a certain temperature range; therefore, we need to cool the molten glass first. Glass transforms into a plastic state of a viscous liquid and then into a brittle solid during cooling. Forming methods can be divided into two categories: artificial forming and mechanical forming.

The shape of the glass changes during the molding process because they are subjected to high temperatures that leave thermal stress in the glass. This thermal stress reduces the strength and thermal stability of the glassware.

If you cool the glass directly, it tends to self-crack during the cooling process or when you store, transport, and use the glass. In order to avoid a cold burst, the glass must be annealed after forming. Annealing is the elimination or reduction of thermal stress in the glass for a period of time at a certain temperature.

With sophisticated and advanced inspection technology, more than 100,000 inspections can be performed throughout the glass manufacturing process to identify air bubbles, stress, or sand particles. This is an important part of the quality control of glass perfume bottle molding.

The unadorned glass that comes straight out of the mold is ordinary glass. However, if you want to further create eye-catching glass perfume bottles, various creative and flexible decorative works will be added later.

Some professional glass perfume bottle manufacturers specializing in this field can help you make standard glass perfume bottles to make your brand even better. A typical one is Das Packaging. As a custom glass container manufacturer with 25 years of experience, the DAS PACKING team can achieve a unique decoration for your glass perfume bottle with a professional design team. In addition, they can also provide OEM and ODM services for glass perfume bottles and caps, combining color casting, polishing, and printing to make glass perfume bottles look outstanding. If you need, please contact us.