In-line Inspection Solutions
In-line Inspection Solutions

  Empty PET Container Inspection

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EMPTY PET CONTAINER IMPERFECTIONS

Imperfections in empty PET containers, either returnable or straight from the molder, can result in damaged or wasted product.

COMMON REFPET FLAWS


  • Damaged thread
  • Foreign objects
    • Uneven finish
  • Residual liquid or caustic
  • Types of Inspection

    OUTER SIDEWALL INSPECTION

    Outer sidewall refers to the outside surface of a container, usually below the thread and above the base. This outer surface can often become visibly scuffed or chipped, especially in REFPET, sometimes so badly these damages may result in leaks.

    Inspection Technology Overview


    • 15 independent inspection zones
  • 6000k LED panel strobe
    • ACL detection
  • Cellophane / brightfield detection
    • Adjustable illumination
  • Adjustable illumination
    • 360 degree outer surface inspection
  • High resolution images
  • Sidewall Bottle Rotator


    Twelve images are captured at 30 degree intervals while the bottles rotate past the inspection window, providing the most thorough inspection and fewest number of false rejects.

    Bottles rotate against each other as they pass through the inspection field, allowing for 360 degree detection.

    Adjustable LED strobe allows for the illumination of bottle features for easy flaw detection.

    BASE INSPECTION

    The base of a bottle receives the most amount of wear during the container's life, and easily sustains scuffing or chips. Thorough inspection of both the inside and outside of an empty container's base prevents flawed packaging and contaminated product from reaching the market.

    Inspection Technology Overview


    • High resolution CCD camera
  • Up to 6 different inspection zones
    • Detection of flaws both inside and outside of the container
  • Adjustable filters for embossing and varying bottle designs
    • Adjustable filters for embossing and varying bottle designs
  • Cellophane / brightfield detection
  • INNER SIDEWALL INSPECTION

    The bottle's inner sidewall includes all the inside surfaces of the container from the base up through the neck. Damages on these surfaces can be difficult to see, but can easily grow mold or develop cracks after the container has been filled.

    Inspection Technology Overview


    • High resolution CCD camera
    • Up to 6 different inspection zones

    THREAD INSPECTION

    A bottle's thread is the molding at the top of the neck where the cap is screwed in place. Damaged thread can prevent the container from sealing properly, threatening pressurized or perishable product.

    Inspection Technology Overview


    • High resolution CCD camera
  • Long-life LED strobe
    • Customized acceptable Press, Roll and Twist finishes
  • Up to 720 degree inspection of roll thread containers
    • Five (5) inspection zones plus auto-centering and auto-tracking functions
  • Twist thread inspection (optional)
    • Five (5) inspection zones plus auto-centering and auto-tracking functions

    RESIDUAL LIQUID & FOREIGN OBJECT INSPECTION

    Without additional inspection, leftover caustic can occasionally remain inside of REFPET containers and contaminate the final product. FILTEC uses both radio frequency and infrared detection technologies to inspect REFPET containers for residual caustic.

    Inspection Technology Overview


    Radio Frequency (RF) RLD Technology Infrared (IR) RLD Technology

    Detects smallest amounts of caustic, even once it has dried.

    Detects oil, paint, gasoline, and other liquids and objects with low conductivity.