| 摘要 |
PURPOSE: A double layer packing structure is provided, which has a simple manufacturing process and excellent print effect, and strong impact resistance, and is harmless to the human body. CONSTITUTION: A double layer packing structure includes a metallized film(2) and a printing layer(3) expressing the color sense or design by being laminated at the upper part of the metallized film. The metallized film is formed by being aluminized. The metallized film includes vacuum evaporated casting polypropylene. The printing layer comprises a polypropylene sheet.
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