Characteristics of various materials for food packaging
This is an article from ytpacki
Flexible packaging factory, YT packi.
I am Alice, info@ytpacki.com
The raw film materials used in #vacuumfoodpackaging are food grade, non-BPA, mainly: PE, PA, OPA, AL, PET. These materials play different roles in vacuum #foodpackaging.
- PE Film (Polyethylene Film) is used for heat sealing layer and has high impact strength;
- PA Film (Polyamide/Nylon) OPA (oriented polyamide): used to increase physical strength and improve puncture resistance;
- AL Film (Aluminum foil film) is used to increase barrier properties and shading;
- PET Film (Polyethylene terephthalate film) can increase mechanical strength and increase hardness.
Specific food packaging production process, according to the needs of the content to match the different properties of the material.
Table 1 Introduction to common film materials for #compounding
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Abbreviation |
PE Film |
PA Film |
OPA Film |
AL Film |
PET Film |
PP Film |
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Full Name |
Polyethylene Film |
Polyamide/ Nylon Film |
Oriented Polyamide Film |
Aluminum foil film |
Polyethylene terephthalate film |
Polypropylene Film |
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Commonly used in printing layers |
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Commonly used for barrier layers |
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Commonly used in hot air layers |
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CPP☑ |
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Function list |
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Machine strength |
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Air tightness |
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Moisture resistance |
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Heat sealability |
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Heat resistance |
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cold resistance |
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Transparency |
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Printability |
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Fragrance |
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