원료 & 녹는 과정:
유리의 주요 재료는 석영 모래입니다, 소다 재, 그리고 석회석, 이 재료는 분쇄를 겪어야합니다, 철분, 균일한 입자를 보장하기 위해 건조하고 0.1% 불순물.
그런 다음 이 모든 원료를 혼합해야 합니다., 그리고 용광로에 던져졌어, melting at a high temperature of 1500-1600°C into liquid glass. the furnace needs to be constantly stirred to remove air bubbles and ensure a uniform composition.
Shaping techniques:
있다 2 methods to make glass bottles: blow molding and press molding.
Press molding method is efficient for simple containers like food jars etc.
Blow molding method are usually for complex designs like perfume bottles.
The spray bottle/lotion bottles we used for cosmetics are all made by blow molding method. Molten glass is cut into droplets, inflated in molds to create different shapes.
Annealing :
The formed glass bottles need to be treated in an annealing oven for 4-6 hours according to a specific temperature curve, such as slow cooling from 550°C to room temperature, to eliminate internal stress and avoid breakage due to temperature difference during subsequent use.
Quality check & packing:
After the glass bottles cool to room temperature, workers will visually inspect under strong light and measure the size of the bottles to screen out defective products.
Qualified bottles will be packed well in cartons and pallets to make sure safe transit.
Contact us to get more inspirations for your skin care glass packaging.
