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  • 1.  Flexible Barrier Film that does not leak when folded

    Posted 04-20-2023 03:01 PM

    I am working on a project that currently has the below spec for the flexible package. The product is too large so we need to fold it. We folded the package and sent back through testing and noticed leaks at the fold. Any recommendation for a better film that can fold without issue?

    12MIC PET / PRINT/ ADHESIVE / 70MIC. PE



    ------------------------------
    Terrance Allen CPPL
    VP Global Packaging
    Lansinoh Laboratories
    Alexandria VA
    (215) 779-8783
    ------------------------------


  • 2.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-21-2023 02:18 PM

    Terrance, I suggest an nylon film. Berry Plastics and Glenroy are two suppliers that can probably help you out.

    https://glenroy.com/

    https://www.berryglobal.com/en/

     

    • Joe

     

    Joe Christensen

    Manager, R&D, Delivery Systems Packaging

    7400 Tierra Buena Ln #101 | Scottsdale, AZ | 85260 | United States

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  • 3.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-23-2023 05:13 PM

    Thanks Joe.



    ------------------------------
    Terrance Allen CPPL
    VP Global Packaging
    Lansinoh Laboratories
    Alexandria VA
    (215) 779-8783
    ------------------------------

    Original Message


  • 4.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-21-2023 03:01 PM

    Hi Terrance,

    I would also suggest a nylon film as it will withstand a bit more abuse.  I'm not sure what the product being package is, or what type of properties are required for protection, but Nylon could provide what is needed while holding up better to folding.  Some additional plastic manufactures to consider.

    sealedair.com
    winpak.com
    belmark.com
    tctranscontinental.com/


    Regards,

    Greg



    ------------------------------
    Greg Harwood CPP
    Manager, Packaging Optimization
    Chainalytics
    Atlanta GA
    (678) 850-1288
    ------------------------------



  • 5.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-23-2023 05:14 PM

    Very helpful, thanks Greg. 



    ------------------------------
    Terrance Allen CPPL
    VP Global Packaging
    Lansinoh Laboratories
    Alexandria VA
    (215) 779-8783
    ------------------------------

    Original Message


  • 6.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-24-2023 06:21 PM

    Hi Allen,

    I have experienced the same issues for a long pouch Nylon/ uncoated tyvek, it has to be folded in a wrap fashion on both ends, and we have seen pinholes on the folded area. 
    Although nylon is tougher, from experience we have experience pin holes/leaks at the fold, failures came up in bubble leak testing.

    Maybe, folding is not that good as I am aware it is not the best suggestion nor recommendation to avoid stress to the material.
    Not sure if looking for a redesign is in your options, also depends on device configurations and geometry.

    Best,

    Aaron T.



    ------------------------------
    Aaron Tellez
    Principal Engineer
    Cordis
    Ciudad Juarez
    9153309996
    ------------------------------



  • 7.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-25-2023 09:35 AM

    Would folding, but maintaining a minimum radius at the fold, be a possible solution?



    ------------------------------
    Richard Marshall CPP
    Technology Manager - External Supply
    GSK Consumer Healthcare
    Richmond VA
    (804) 257-2766
    ------------------------------

    Original Message


  • 8.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-27-2023 04:22 PM

    Could be, but how to standardize folding up to a certain radius in manufacturing, that is going to be a challenge.
    Also try to consider if a biaxially oriented Nylon could provide better folding abilities, it is possible that it can.

    But bottom line, pouches are best laid straight than having to fold, it gives a greater risk of losing sterile barrier.



    ------------------------------
    Aaron Tellez
    Principal Engineer
    Cordis
    Ciudad Juarez
    9153309996
    ------------------------------

    Original Message


  • 9.  RE: Flexible Barrier Film that does not leak when folded

    Posted 04-26-2023 03:30 PM
      |   view attached

    Hi Aaron-

    Seems to be very similar situation. Attached is an image of the product folded.



    ------------------------------
    Terrance Allen CPPL
    VP Global Packaging
    Lansinoh Laboratories
    Alexandria VA
    (215) 779-8783
    ------------------------------

    Original Message


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