The types of plastic empty container defects shown below are typical for bottles, tubes, cans, tubs, and jars.
|Neck Measurements |
(E, H & T)
Inspects the width (E - edge to edge), height (H) and thread width (T) of the bottle neck.
| ||Sealing Surface Inspections|
Detects nicks, gouges, contamination, and deformities on or in the sealing surface.
|Planarity Inspection |
Planarity of container top is checked for hairs, filaments, and waviness caused by uneven cuts during the trimming process.
Verifies that the neck of an empty container is round and dent free. Ensures the container mouth is properly oriented.
|Sidewall Thickness Verification|
Verifies proper wall thickness by monitoring the light transmission across the sidewalls of the container.
| ||Contamination Inspection|
Detect defects on container sidewalls including dirt, burns, discoloration, and embedded particulate matter caused by carbon buildup during the molding process.
| ||Surface Finish Defect Inspection |
Inspects the container for swirls, scratches, or other blemishes in the color and finish of the container.
| ||Blisters and Bubble Inspections|
Verifies the sidewalls and bottom of the container are free from blisters and bubbles.
Foreign Debris Inspections
Inspects for foreign material that has fallen into the container during the manufacturing or shipping process.
Left: swarf inside container.
Left: plastic chip in spice jar.
| ||Gate Inspections |
Inspect for pulled, blown out, burnt, mushroomed, or improperly positioned gate.
| ||Preform Gate Inspections |
Verify the gate of a preform has been properly formed.