The Brief Discussion on the Basic Quality Requirements of Airless Cosmetics Containers
First, Quality Requirements of the Appearance 1. Appearance: The bottle cap of airless cosmetic containers should be complete, smooth, and have no cracks, burrs, deformations, oil stains, shrinkage, and have the clear and full thread; the bottle body of airless cosmetic containers should be complete, smooth and clear, and have the straight, smooth, full thread of the…