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    Flexible Packaging: (Basic Films / Raw Materials For Converting)

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    pandu kr
    The document discusses various flexible packaging materials including polyethylene (PE), cast polypropylene (CPP), bi-oriented polypropylene (BOPP), oriented polyester (BOPET), oriented polyamide (OPA), paper, and aluminum. PE is the oldest thermoplastic film and is used as an inner layer or for low barrier applications. BOPP is the most commonly used thermoplastic film and is suitable for snacks and frozen foods. BOPET has very high barrier properties and is used in applications like cheese and meat. Laminates combine materials like a sealing layer with a barrier layer to optimize packaging for specific applications.

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    Flexible Packaging: (Basic Films / Raw Materials For Converting)

    Uploaded by

    pandu kr
    87 views10 pages
    The document discusses various flexible packaging materials including polyethylene (PE), cast polypropylene (CPP), bi-oriented polypropylene (BOPP), oriented polyester (BOPET), oriented polyamide (OPA), paper, and aluminum. PE is the oldest thermoplastic film and is used as an inner layer or for low barrier applications. BOPP is the most commonly used thermoplastic film and is suitable for snacks and frozen foods. BOPET has very high barrier properties and is used in applications like cheese and meat. Laminates combine materials like a sealing layer with a barrier layer to optimize packaging for specific applications.

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    flexiblepackagingmaterial

    Original Title

    flexiblepackagingmaterials2013-131010111528-phpapp02

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    The document discusses various flexible packaging materials including polyethylene (PE), cast polypropylene (CPP), bi-oriented polypropylene (BOPP), oriented polyester (BOPET), oriented polyamide (OPA), paper, and aluminum. PE is the oldest thermoplastic film and is used as an inner layer or for low barrier applications. BOPP is the most commonly used thermoplastic film and is suitable for snacks and frozen foods. BOPET has very high barrier properties and is used in applications like cheese and meat. Laminates combine materials like a sealing layer with a barrier layer to optimize packaging for specific applications.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    87 views10 pages

    Flexible Packaging: (Basic Films / Raw Materials For Converting)

    Uploaded by

    pandu kr
    The document discusses various flexible packaging materials including polyethylene (PE), cast polypropylene (CPP), bi-oriented polypropylene (BOPP), oriented polyester (BOPET), oriented polyamide (OPA), paper, and aluminum. PE is the oldest thermoplastic film and is used as an inner layer or for low barrier applications. BOPP is the most commonly used thermoplastic film and is suitable for snacks and frozen foods. BOPET has very high barrier properties and is used in applications like cheese and meat. Laminates combine materials like a sealing layer with a barrier layer to optimize packaging for specific applications.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
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    The document discusses the main types of flexible packaging materials like PE, PP, BOPP, PET, OPA, paper and aluminum and their properties and applications.

    The main types of flexible packaging materials discussed are PE, CPP, BOPP, PET, OPA, paper and aluminum.

    BOPP has very lower heat sealing properties than PE or CPP but better barrier properties. It is also the most used thermoplastic film and has excellent printability in flexo or rotogravure.

    FLEXIBLE PACKAGING

    (BASIC FILMS / RAW MATERIALS FOR CONVERTING)


    1.- POLYETHYLENE (PE)

    • It is the oldest thermoplastic film


    • It can be: Transparent, Metallized, or White
    • Thickness range between 25µ to 100µ
    • Excellent heat sealability
    • It is only suitable for flexo printing
    • PE is a film with very low barrier properties
    • It is only suitable to protect against moisture
    • This material is mainly used as an inner layer for laminates
    • It is also used as single layer to pack products requiring low protection
    like: Frozen vegetables, Frozen Fish, Napkins, …
    2.- CAST POLYPROPYLENE (CPP)

    • It is very similar to PE but with better machinability properties


    • Thickness range between 20µ to 40µ
    • It is transparent, but with a more crystalic view compared to PE
    • It has very low protection barrier values

    • Better printability properties than PE, but still must be printed in flexo
    • Used as simple layer for applications such as toast bread or cupcakes
    • Not used as laminating layer
    3.- BI-ORIENTED POLYPROPYLENE (BOPP)

    • It is the most used thermoplastic film


    • Thickness range between 15µ to 40µ (most between 20µ-30µ)
    • It can be : transparent, white, opaque, metallized, lacquered, pearly, …
    • It has very lower heat sealing properties than PE or CPP
    • Better barrier properties than PE or CPP, but still low
    • Excellent printability in flexo or rotogravure
    • Used as simple- or laminated layer
    • Used in Snacks, pasta, dish was powders, biscuits, frozen food, …
    4.- (BI) ORIENTED POLYESTER (BOPET - PET)

    • Thickness: 12µ (recently found in 8/9µ)


    • It has no heat sealing capability
    • Very high barrier properties
    • Excellent printability properties
    • Used as part of a lamination
    • Used in Cheese, meat, detergents, coffee, soups, …
    5.- ORIENTED POLYAMIDE (OPA)

    • Most usual thickness: 15µ


    • It has no sealing properties (needs a sealing layer)
    • It has high protection barrier values

    • Medium printability properties


    • Used in laminations in combination (at least) with a sealing layer
    • Applications: Chesse & meat (thermoforming), spaghetti, …,
    • Pharma applications: Mainly in cold forming, …
    6.- PAPER

    • It is not (obviously) a plastic film


    • It has no sealing properties (needs a sealing layer)
    • It has no protection barrier values

    • Printable in flexo and rotogravure


    • Used in laminations in combination (at least) with a sealing layer
    • Applications: Sachets (Pharma & Food), bread, Tee, Coffee, …
    7.- ALUMINIUM

    • It is not (obviously) a plastic film


    • It has no sealing properties (needs a sealing layer)
    • It has excellent barrier properties

    • Its printability is relatively poor


    • Used in laminations in combination (at least) with a sealing layer
    • Usually it is combined in a sendwich between a sealing- & printing layer
    • Applications: Sachets (Pharma & Food), Tee, Coffee, …
    8.- OTHERS

    • There are other films/materials like “Lacquered films” (acrylic, PVDC, …),
    “Coextruded films” or “Coated materials” that can be also combined in a
    large range of laminations
    • The important idea of all this story is to keep in mind that:

    For each application there is the film / material / lamination


    that optimizes the packaging purposes
    José L. Giráldez (jose.madrid.es@googlemail.com)
    More interesting info in Slideshare & Pinterest

    Some of the graphics come from public documents or web sites, and have been used with the sole intention of delivering the messsage.
    There are no commercial purposes behind this document

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