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Question:
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What packaging material structure should I need for my product? And what shelf life it affords?
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Answer:
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Just enquire us with information: what kind of contents it is; its volume; filling, sterilizing and storage conditions, then we shall propose the appropriate and economical sulotion to meet your shelf life request.
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Question:
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What types of bags does QiMei offer?
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Answer:
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Bottom-gussetted bag, with or without zipper
3 sides sealed bag, with or without punch hole
Center-seal bag, with or without tear nick
Stand-up pouch, with or without zip
Quad-sealed bag, with or without air valve
and so on.
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Question:
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What is Laminated material?
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Answer:
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A material which is composed of multiple layers of different materials which are joined together to form a single sheet. The component layers are bonded using adhesives. The objective of combining different materials together is to create a new material with a combination of properties not available from any single material.
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Question:
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What is "metallised" film?
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Answer:
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Metallised film is a plastic film which has a thin coat of metal applied to it. Generally aluminum is used. The most common way of producing metallised film is known as vacuum metallisation.
Metallisation is achieved by heating aluminum wire until it literally evaporates and coats the plastic film. Plastic films commonly used are OPP, CPP and PET.
The aluminum-coated film has a bright and shiny decorative surface effect. Additionally metallised film has added barrier properties and in a laminate structure can significantly enhance both gas and moisture protection. Metallised film is often seen in applications such as snack pouches coffee packs and candy wrappers.
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Question:
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PET or OPP printed layer?
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Answer:
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Advantages of PET
- Greater strength resulting in better control for repeat length and slitting size.
- Higher heat resistance (~250
°C) making it the preferred choice for fast speed packing machines (OPP can only withstand up to 180°C)
- Stronger bonding wit ink and PE resin.
Disadvantages of PET
- Higher cost in comparison to OPP
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Question:
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Why is Nylon needed to my bag?
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Answer:
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Though its price is high, Nylon film is good for oxygen barrier and impact strength. Eespecially when the bag is to be hot-filled through or drop resistant is needed, it's necessary.
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