Appearance quality requirements for cosmetic bottles
1. Foreign matter: no rust, oil, water stains that are difficult to wipe off, no paper scraps, insects, hair, broken glass, metal, large amounts of dust and other foreign matter in the bottle
2. Bottle mouth: no large mouth, small mouth, cracks, damage, burrs; the neck of the bottle should not be obviously skewed or shifted, affecting filling and fit.
3. Thread: must be smooth and flat, without deformation, incompleteness, or roughness
4. Mold line: no obvious protrusions, double mold line misalignment, sharp burrs, etc. that affect safety and fit
5. Upright: no concave and convex deformation at the bottom of the bottle and affecting stability.
6. Bottle body: uniform thickness within the acceptance range, not less than 1.5mm. There should be no cracks, cracks or damage in all parts of the bottle.
8. Discoloration points: The main surface allows 1 or 2 non-concentrated points of Φ≤0.5mm, but it does not affect the LOGO and layout; the non-main surface allows 2 or 3 non-concentrated points of Φ≤0.5mm, but it does not affect the layout.
9. Bubbles: The main surface allows 1 or 2 bubbles of Φ≤0.5mm, but it does not affect the LOGO and layout; the non-main surface allows 3 or less bubbles of Φ≤1mm, but it does not affect the layout; but broken bubbles are not allowed.
10. Sand holes: The main surface allows 1 or 2 sand holes of Φ≤0.5mm, but it does not affect the LOGO and layout; the non-main surface allows 3 or less sand holes of Φ≤1mm, but it does not affect the layout.
