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Detailed explanation of common material combinations for aluminum foil bag composite

by:Supouches Packaging     2021-12-22
AL: Aluminum Foil Aluminum foil, we often call it pure aluminum. Aluminum foil bags are divided into pure aluminum and aluminum-plated. When there is no printing, pure aluminum and aluminum-plated are easy to distinguish. See samples. Generally speaking, aluminum foil bags, you have to judge whether the aluminum foil refers to pure aluminum or aluminum-plated according to the bag requirements he said. The thickness of pure aluminum is generally 0.007MM and 0.009MM, and the most used is 0.007MM. If the customer says AL007 or AL7, then we know that the thickness of pure aluminum PET aluminum plating is 0.012MMu003d12UMCPP aluminum plating thickness is 0.025MMu003d25UM aluminum plating is divided into PET aluminum plating and CPP aluminum plating. PET aluminum plating can only be placed on the middle layer of the bag. For example, if the bag is a three-layer composite, then PET aluminum plating is placed on the second layer. CPP aluminized is placed on the innermost layer, because CPP aluminized has the same heat sealability as CPP, and it can be made into a bag by placing it on the innermost layer. CPP aluminum plating is generally used to make toy bags. Material combination: OPP+CPP aluminum plating or PET+CPP aluminum plating aluminum foil bags. The main printing materials are: OPP and PET. Generally speaking, if the aluminum foil bag is printed, then this layer of printing material is not OPP, that is PET. Nylon, CPP and PE, PE milky white can also be printed, but it is not good for printing, and the printing effect is not very good. The main composite materials are: CPP, CPP aluminized, PE, PE milk white-these are placed in the innermost layer of the aluminum foil bag, and generally placed in the middle layer of the aluminum foil bag: AL (pure aluminum), PET plating Aluminum, PET, nylon
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