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Composition of structural layer of multi layer composite machine

Date:2021-05-27
Info:
   Multi layer composite machine is mainly used for laminating cellophane, aluminum foil, nylon, pap

  

  Multi layer composite machine is mainly used for laminating cellophane, aluminum foil, nylon, paper, pet, OPP, BOPP, CPP, NY, PE and other materials. The symmetrical structure layer consists of three types of functional layers: intercepting layer, bonding layer and supporting layer.

Composite Machine

  1. Barrier layer: the barrier layer has the functions of oxygen barrier, moisture-proof and oil leakage prevention. By controlling the material and thickness of the barrier layer, the barrier performance of the film material can be adjusted to meet various packaging requirements. Various barrier materials are applied separately to form a series of packaging thin films with high barrier and medium barrier. PA and EVOH adopt a combined sandwich structure to provide high barrier performance.

  2. Support layer: generally symmetrical structural materials have two support layers: heat seal layer, heat seal layer, and outer layer, which are directly used as the outer layer of packaging film or as the printing layer. The support layer needs mechanical strength, heat sealing performance, water vapor prevention, transparency and printability. This layer has more LDPE or LDPE / LLDPE composite materials.

  3. Adhesive layer: the function of adhesive layer is to make adhesive layer and support layer to ensure the separation force between layers. The choice of the material and thickness of the adhesive layer usually depends on the material of the support layer and the barrier layer and the adhesive strength to be achieved.


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Home / News / Industry News

Composition of structural layer of multi layer composite machine

  

  Multi layer composite machine is mainly used for laminating cellophane, aluminum foil, nylon, paper, pet, OPP, BOPP, CPP, NY, PE and other materials. The symmetrical structure layer consists of three types of functional layers: intercepting layer, bonding layer and supporting layer.

Composite Machine

  1. Barrier layer: the barrier layer has the functions of oxygen barrier, moisture-proof and oil leakage prevention. By controlling the material and thickness of the barrier layer, the barrier performance of the film material can be adjusted to meet various packaging requirements. Various barrier materials are applied separately to form a series of packaging thin films with high barrier and medium barrier. PA and EVOH adopt a combined sandwich structure to provide high barrier performance.

  2. Support layer: generally symmetrical structural materials have two support layers: heat seal layer, heat seal layer, and outer layer, which are directly used as the outer layer of packaging film or as the printing layer. The support layer needs mechanical strength, heat sealing performance, water vapor prevention, transparency and printability. This layer has more LDPE or LDPE / LLDPE composite materials.

  3. Adhesive layer: the function of adhesive layer is to make adhesive layer and support layer to ensure the separation force between layers. The choice of the material and thickness of the adhesive layer usually depends on the material of the support layer and the barrier layer and the adhesive strength to be achieved.



Dongguan Chuanbo Machinery Equipment Co., Ltd.