What are the requirements for cosmetics packaging appearance cover

( 1) Inside the lid (1) full, smooth and no deformation, clean, no dust, oil, etc. (2) cooperate with bottle and the cover is good, must not leak. ( 2) Cover (1) straight, smooth, no breakage, crack, burr, MAO) And blowout phenomenon, colour and lustre is uniform, shall not be moved, in accordance with standard sample. (2) the thread with structure intact. (3) with electrochemical aluminum or hot stamping should be uniform complete, colour and lustre is consistent with the standard sample. (4) turn up flexible class flip cover. 5. Cover with bottle, no sliding teeth, such as loose, leakage phenomenon.