Double -layer packaging bag

Double -layer packaging bag

  • CN 205,499,712 U
  • Filed: 12/25/2015
  • Issued: 08/24/2016
  • Est. Priority Date: 12/25/2015
  • Status: Active Grant
First Claim
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1. a Double-layer packaging bag, including bag, it is characterized in that, bag is the most successively by cephacoria (1), middle film (2) and caudacoria (3) are constituted, described cephacoria (1), outward flange between middle film (2) and caudacoria (3) uses the mode of heat-sealing to be connected, described cephacoria (1) and caudacoria (3) all use aluminum-plastic composite membrane to make, described middle film (2) uses composite membrane to make, described cephacoria (1), it is equipped with gap on middle film (2) and caudacoria (3), the thickness of described cephacoria (1) and caudacoria (3) is 0.1mm-0.12mm.

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