The precautions for cosmetic glass packaging mainly include the following aspects:
Packaging material selection: Glass bottles are often used for cosmetic packaging because of their lead-free and harmless, good barrier properties, high transparency, and corrosion resistance. Glass bottles can effectively prevent the oxidation and erosion of the substances in the bottle by gases, while preventing the volatilization of the substances inside.
Packaging design: The design of glass bottles should take into account their use. For example, solid pastes generally use wide-mouth bottles, while emulsions or aqueous pastes use narrow-mouth bottles. Essential oil bottles usually use brown or colored frosted glass to avoid light.
Processing technology: The processing technology of glass bottles includes electroplating, electroplating, spraying, etc., which can enhance the appearance of glass bottles. For example, the electroplating process can cover a layer of film on the aluminum surface to increase the beauty and durability of the bottle.
Transportation and storage: During transportation, cosmetics packaged in glass bottles need to be particularly careful. It is recommended to use bubble film to wrap the glass bottles in all directions to ensure that they will not be damaged during transportation. For liquid cosmetics, use seamless tape to wrap the bottle mouth to prevent liquid leakage. After packing, don't forget to put a "fragile, handle with care" label on the box to remind the handlers to pay attention.
Testing standards: Cosmetic glass packaging needs to undergo a series of tests, including size measurement, sealing, corrosion resistance, strength assessment, printing quality, label testing, hazardous substance testing and simulated transportation. These tests ensure that the packaging meets the specified requirements and ensure the safety and effectiveness of cosmetics.