I.Color: Slight color deviation from the Pantone color chart will be determined based on the Pantone color chart.
II.Finished Product Defects：Mold line misalignment is noticeable and can cause hand injuries.
III. Common Appearance Defects: Cracks, chips, chipped corners, deformation, glass ripping, internal wall sticking, and sharp punctures that may affect the seal and pose a risk of injury. Cold marks, pitting, brush marks, wrinkles, stubble marks, scissor marks, base thickness variations, and minor scratches may also be present on the bottle. Discoloration, black spots, bubbles, and pinholes may be present elsewhere.
IV.Foreign Objects: Broken glass, insects, metal, blood, and other issues. Check the bottle's interior and exterior for visible foreign objects such as oil, water, paper scraps, and small impurities.
V. Process Spraying
The sprayed surface is not smooth or flat; it may exhibit streaks, wrinkles, frosting, orange peel, or other defects. On the main viewing surface: Two particles or off-color spots with a diameter ≤ 0.5mm² may be present, and these particles or off-color spots must not affect the logo or layout. On the non-main viewing surface: No more than three particles or off-color spots with a diameter ≤ 0.5mm² may be present, and these particles or off-color spots must meet the requirements of "not noticeable after direct viewing for 3 seconds," "not concentrated," and "not affecting the logo or layout."
VI. Packaging:Mixing or misplacing packaging; damage or dirt on the outside of the packaging that affects the quality of the contents.
VII.Vacuum Tightness Test: Fill the bottle with 80% colored water, place it sideways in a vacuum chamber, and apply a pressure of -0.05 MPa for 5 minutes. If there is any visible leakage,
VIII. Hot Stamping and Printing Adhesion Test
Scotch 3M810 tape was applied to the test area, smoothed to remove air bubbles, and left for 1 minute. The tape was then peeled off quickly and vigorously at a 45-90 degree angle. The same area was tested once. The ink and hot stamping were slightly adhered to the tape. The adhered object showed spots or surface detachment, affecting the writing and appearance.
IX. Wall Thickness:Bottle body thickness deviation >1.5mm, bottom thickness deviation >3mm.
X. Glass Bottle Thermal Shock Resistance Test
1. Place empty glass bottles in a mesh basket, ensuring the bottles remain upright and separated from each other. Securely close the basket lid.
2. Immerse the basket containing the bottles in a hot water tank (controlled at 64°C ± 1°C), ensuring that each bottle is completely filled with hot water and that the top of the bottle mouth is at least 50mm below the water surface. Maintain this condition for 5 minutes.
3. Within 16 seconds, completely empty the hot water from all bottles in the basket. Immediately, transfer the basket to a cold water tank (controlled at 22°C ± 5°C), ensuring that each bottle is completely filled with cold water and that the top of the bottle mouth is at least 50mm below the water surface. Maintain this condition for 30 seconds.
4. Remove the basket containing the glass bottles from the cold water tank and completely empty the cold water from all the bottles.
5. Inspect the glass bottles to ensure they are free of cracks, breaks, or other defects.
XI. Stability
1. Pour an equal amount of the corresponding material into each glass bottle and seal it.
2. Place the sealed glass bottles in the following three environments for three consecutive months:
3. Observe the glass bottles regularly at the following time points:
4. After inspection, ensure that the glass bottle meets the following requirements:
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Whatsapp : +8615728785419
Email : kat.lin@panyuepacking.com
