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How do you choose the material for the self-supporting mouth bag


click: time:2020-05-20 16:52:18 edit:Hua Di's editor

Self supporting mouth bag refers to a kind of soft packaging bag with horizontal support structure at the bottom and suction nozzle at the top or side; its self-supporting structure can stand on its own without any support and whether the bag is opened or not. How do you choose the material for the self-supporting mouth bag?

 

1. Outer layer

 

The outer layer is the printing material. In addition to the common OPP, there are also pet, PA and other high strength and high barrier materials, which can be selected according to the situation. If it is used to pack dry fruit solid products, BOPP, dull BOPP and other common materials can be selected. If liquid products are packed, pet or PA data are generally used.

 

2. Middle layer

 

In general, high strength and high barrier materials are selected for the intermediate layer, such as pet, PA, VMPET, aluminum foil, etc. In addition, RFID requires that the surface tension of the intermediate layer data should meet the composite requirements, and it is necessary to have excellent affinity with adhesive.

 

3. Inner layer

 

The inner layer is the heat sealing layer, and the data with strong low temperature heat sealing function such as PE or CPE, CPP are generally selected. It is required that the surface tension of the composite surface should meet the composite requirements, but the surface tension of the hot surface must be lower than 34mn / m, and it should have outstanding anti pollution ability, antistatic ability and heat sealing ability.

 

Dongguan Huadi packaging products Co., Ltd. specializes in the production of infant and child feeding bags, food, daily chemical suction mouth bags, self-supporting valve bags, bags in boxes, food packaging bags, special water bags and other packaging series.

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