Basic quality requirements for cream bottles

Cream bottles are one of the main containers for cosmetics. They have a large caliber, thick walls, and are made of acrylic, glass, etc. In this article, we mainly analyze the basic quality requirements for cream packaging materials. Due to the limited level of the editor, mistakes are inevitable, so this article is only for reference by friends who purchase packaging materials in the Youpin community:

I. Basic appearance requirements

1. Foreign matter: dust, flying insects, hair and other debris must not be mixed in

2. Appearance: cracks, flash, burrs, stains, oil stains, scratches, scratches, ghosting, etc. must not appear

3. Short plastic/incomplete mold: the product is incomplete and seriously affects the overall appearance

4. Container rupture: the contents cannot be filled, and the function and overall appearance have been affected

II. Surface treatment and graphic printing requirements

1. Painting: electroplating, spraying point or line exposed bottom, pitting, etc. should be within the limit range

2. Hot stamping/layout: must be consistent with the design cover, printed text or pattern double image, uneven or jagged edges, missing dots, color spots, etc., shall not affect the overall product appearance and hot stamping pattern and shall be within the limit (color spots shall not appear on the logo and within 0.5cm nearby)

3. Surface color difference: must meet the signature standard

4. Text: no missing text or pattern, incomplete fonts, broken or incomplete printed fonts, and it is not easy to distinguish the original fonts

5. Ink contamination: 1mm2↑ ink adheres to the surface of the product (different color spots are equivalent)

6. Hot stamping/printing adhesion: stick with 3M-810 tape for 1 minute, tear it off quickly at an angle of 45°~90°, and there shall be no obvious shedding to expose the bottom, and the font shall be clearly visible.

7. Electroplating/spraying adhesion: Use a utility knife to scratch 4 to 6 squares with a side length of about 0.2 cm on the electroplated/sprayed area (just scratch the electroplated/sprayed coating), stick 3M-810 tape to the squares for 1 minute, then tear it off quickly at an angle of 45° to 90° without any falling off.

III. Material and structural requirements

1. Specifications/sizes: meet the standards and within the limits

2. Material: inappropriate raw materials and materials shall not be used for production and assembly

3. Gate: shall not appear, and it is required to shake when standing

4. Screw thread: shall not slide and collapse, affecting the function and overall appearance

5. Deformation: causing the bottle and the cap and other products to be unable to match

6. Gap: the matching gap is not allowed to exceed the standard by more than 0.5mm

7. Positioning: the positioning exceeds the standard by more than ±2mm

IV. Functional requirements

1. The matching torque between the cap and the bottle: after the cap and the bottle are tightened, the opening torque tested by the torque meter should be between 0.2N.m and 0.7N.m, and the thread should not slip when tightening after tightening.

2. The pull-out force between the outer cover and the inner cover: the pull-out force between the outer cover and the inner cover tested by the pull-out force tester should be ≧4 kgf (39.23 N).

3. Vacuum leakage test: Fill the product with water and place it (or inverted) on absorbent white paper in the vacuum box. Vacuum for 15 minutes, and the loss rate shall not exceed 0.5%.

4. Vacuum box pressure: The product body is -0.06MPa for ordinary material, and the product body contains volatile components: -0.08MPa.

5. Drop test: Fill the product with water and drop it from a height of 1m, and check if there is any crack, looseness or abnormal function.