Self-supporting zipper bag for pet snacks

Self-supporting zipper bag for pet snacks with its unique shape and independent characteristics, combined with exquisite printed appearance, make its packaged products favored by consumers in the market.

So, what are the main issues in selecting materials for the self-supporting zipper bags favored by consumers for pet snacks? Here is the answer to choosing materials from the outer, middle and inner layers

The outer layer of self-supporting zipper bag for PET snacks: the outer layer is the printing layer of self-supporting zipper bag for pet snacks that we see: the commonly used upright bag printing materials on the market, in addition to ordinary OPP cutting, there are high strength and high barrier data such as PET, PA, which can be selected according to the situation. If used to package dry fruit solid products, BOPP, extinction BOPP and other general materials can be selected. If packaging liquid products, generally choose PET or PA data.

Middle layer of self-supporting zipper bag for PET snacks: When selecting middle layer, materials with high strength and high barrier are generally selected: common materials include PET, PA, VMPET, aluminum foil, etc. And RFID, requires the surface tension of the middle layer data to meet the composite requirements, must have a good affinity with the adhesive.

Inner layer of self-standing zipper bag for pet snacks: The inner layer is the heat sealing layer: PE or CPE, CPP and other data with strong low temperature heat sealing function are generally selected. The surface tension of the composite surface should meet the composite requirements, but the surface tension of the hot cover must be less than 34mN/m, and it should have excellent anti-pollution ability, anti-static ability and heat sealing ability.