Technical content of cosmetic bottles

Coating hardness: The coating hardness of the outer surface of the cream bottle is not less than 2H pencil hardness.
Adhesion: The coating adhesion is not less than level 1. The surface decoration pattern is complete and clear.
High and low temperature resistance: 40 ℃, it should not leak, deform, or crack, and the coating and surface decoration pattern should not have cracks or obvious discoloration. -18 ℃, it should not leak, deform, or crack, and the coating and surface decoration pattern should not have cracks or obvious discoloration.
Opening torque: opening torque (0.8~3.2) N·m.
Sealing performance: After the sealing performance test, no liquid leakage occurs.
Drop test: After the drop performance test, there is no leakage and no rupture that affects use.