The technical parameters of cosmetic glass packaging mainly include the following aspects:
Physical properties:
Appearance: The glass bottle should have no obvious defects, such as cracks, bubbles, etc.
Size: The size of the bottle should meet the design requirements, and the error should be within the allowable range.
Sealing: Ensure that the bottle cap is tightly combined with the bottle body to prevent liquid leakage.
Impact resistance: Able to withstand a certain external force without breaking.
Internal stress: The internal stress of the glass is evenly distributed to avoid breakage due to stress concentration.
Breaking force: Not easy to break when subjected to large external forces.
Chemical properties:
Water resistance: The inner surface of the glass should be able to withstand water immersion without chemical changes.
Acid resistance: Able to resist the erosion of acidic substances.
Alkali resistance: Able to resist the erosion of alkaline substances.
Limit of harmful substances: Ensure that it does not contain or contains very small amounts of metal elements that are harmful to the human body, such as arsenic, antimony, cadmium, chromium, lead, mercury, etc. Manufacturing material composition: Main materials: Main materials: silica sand (or quartz powder), soda ash (Na₂CO₃), limestone (CaCO₃), etc. Auxiliary materials: clarifier (generally sulfate), co-solvent (generally nitrate, sulfate), etc. Special materials: oxidant, physical decolorizer, etc. Manufacturing process: Spraying process: Spray the paint evenly on the surface of the glass bottle through a spray gun or disc atomizer to achieve different colors and effects. Frosting process: Use glass frosting powder to make a solution to chemically erode the glass surface to enhance adhesion. 3D printing process: Use 3D printing technology to print complex patterns on glass bottles to enhance aesthetics and brand uniqueness. Electroplating process: A layer of metal film is deposited on the surface of the glass bottle through the electrolytic metal method, which is mainly used for external components such as bottle caps, pump bodies, etc.
Thermal transfer process: The pattern is transferred to the glass bottle through the thermal transfer heating equipment to create a unique effect.
Rubber paint process: Give the glass bottle a unique touch and visual effect, and improve the anti-slip, wear-resistant and corrosion-resistant properties.
