Method for manufacturing packing container by using multiplayer packing material

Method for manufacturing packing container by using multiplayer packing material

CN
  • CN 102,303,426 A
  • Filed: 03/25/2011
  • Published: 01/04/2012
  • Est. Priority Date: 03/25/2011
  • Status: Active Application
First Claim
Patent Images

1. method with multi-layer packaging made packing container;

  • This multi-layer packaging material comprises thermoplastic outermost layer, paper base material layer, thermoplastic innermost layer;

    Have first and second vertical side of the edge of mutual overlap joint formation packing container clinch, it is characterized in that;

    A, the clinch that the thermoplastic outermost layer of said multi-layer packaging material first vertical side of the edge overlap joint is formed at the thermoplastic innermost layer of said second vertical side of the edge;

    B, heat this clinch, make the thermoplastic outermost layer of first vertical side of the edge, the thermoplastic innermost layer of second vertical side of the edge have viscosity;

    C, molten thermoplastic is extruded the end at said first vertical side of the edge;

    D, push this clinch and molten thermoplastic simultaneously;

    And the cooling molten thermoplastic forms band;

    The thermoplastic outermost layer sealing of first vertical side of the edge is sticked on the thermoplastic innermost layer of this second vertical side of the edge;

    And make this band sealing stick on the end of this first vertical side of the edge, form the clinch that seals.

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