Introduction of cosmetic glass packaging materials

Glass containers based on glass are widely used in the field of cosmetics. They are popular with people because of their high transparency and good hand feel. Different glass materials directly determine the grade of the product. For example, in the fragrance market, the main material of perfume bottles is crystal white glass, while the more common cosmetic glass in the market is mostly high white.

1. Material Definition:
Main components: Na2O·CaO·6SiO2
Glass is formed by the fusion of silica and other chemicals (mainly produced from: soda ash, limestone, quartz). A silicate-based non-metallic material that forms a continuous network structure during melting, and gradually increases in viscosity and hardens during cooling, causing it to crystallize. 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.

2. Material properties:
It has good see-through and light transmission performance, simple manufacturing process, free and changeable shape, high hardness, heat resistance, cleanliness, easy cleaning, low tensile strength, and can be used repeatedly.

3. Material category:
Glass is divided into ordinary white material, high white material, ultra-white material, and crystal white material. Different material colors can directly affect the transparency and brittleness of glass products. The better the raw materials, the better the quality of glass products produced. Color prices also vary. The most common white material glass bottle uses more recycled materials (commonly known as broken glass) in the production ingredients, and the formula price of high white material and crystal white material is much higher than that of common white material. High white material glass needs to choose fine material and quartz sand with less impurities and high density, and crystal white material is basically made of quartz stone as the main material and silica as the auxiliary material.

4. Manufacturing process:
Using quartz sand, soda ash, feldspar and limestone as raw materials, the molding of glass products needs to incorporate some auxiliary materials, including clarifying agents, fluxing agents, opacifiers, colorants, decolorizing agents, oxidizing agents and reducing agents, etc. After mixing, after high temperature melting and homogenization, it is processed and formed, and then obtained by annealing.

5. Processing method:
The main processing methods of glass are various, including manual blowing, mechanical blowing, extrusion molding, drawing method, etc. Among them, high-white glass is basically produced by rank-line machines in China, while crystal white glass is mostly produced by artificial machines.

6. Application of cosmetic glass packaging materials:
Glass containers for cosmetics are mainly made of high white materials, and high-end products also use crystal white materials, such as perfume bottles. Glass is further processed to form containers such as cream bottles, essences, toners, and essential oil bottles.

7. Sustainable development:
After the glass products are consumed by the market, they can be recycled, reprocessed, and then reused.