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What are the appearance inspection items of plastic bottles

Update:13-12-2019
Summary:

Acceptance rules for plastic bottles 1. Appearance insp […]

Acceptance rules for plastic bottles

1. Appearance inspection items: A sampling plan of GB2828.1 general inspection level Ⅱ normal inspection. Adoption of AQL value of appearance qualified quality level and defect types

(1) Class A defects: cracks, gaps, closed mouths, different varieties, incomplete threads, misprints, missing letters, severely misaligned layouts, foreign matter in the bottle, free pollution, barcode printing errors, liner loss, main view Black spots or heterochromatic spots ≥ 0.5mm or more (transparent bottles must not have), two or more black spots on the back and sides of the bottle ≥ 0.5mm

(2) Type B defects: Layout deviation, ghosting, frosted reflection, obvious color difference, air bubbles and stains on the bottle body, burr burrs on the hand, severe depression, deformation, severe scratches and scratches, and uneven wall thickness. Type printing is incomplete and uneven, and the color is incomplete. There are three or more non-dominant black dots or heterochromatic dots 0.3mm ≤ black dot ≤ 0.5mm (two or more transparent bottles)

(3) Class C defects: slight uneven ink, brush marks, wrinkles, two or more black spots on the back and sides of the bottle ≤ 0.3mm, scratches, free pollution outside the bottle, damaged packaging, dirty and unclean Sealing on request

2. Size, weight, capacity, tightness, drop test, adhesion test, cap matching, flip test, bar code readability: random sampling according to 10 samples per batch;

3. The heat resistance and cold resistance test shall be randomly selected for every 5 batches, and shall be randomly selected according to the number of 10 samples in each batch; any sample shall not fail in any item.

4. It is mainly matched with bottle caps, supplemented by size.

5. If there are new types of defects that can be added, everything is subject to actual application.

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