Self supporting zipper bags are generally composite soft packaging, which are composed of polypropylene OPP, polyester PET, nylon, Matt Film, aluminum foil, tape cast polypropylene, polyethylene, kraft paper and even woven bags. It is a kind of packaging product with the advantages of various packaging, low cost and exquisite printing. The product has the characteristics of anti-static, anti ultraviolet, moisture-proof, oxygen proof and shading, cold resistance, oil resistance, high temperature resistance, fresh-keeping, oxygen isolation and easy sealing.
Self sealing bag refers to the packaging bag that can be automatically sealed without using any tools, such as chain clamping self sealing bag, self sealing adhesive bag, etc.
A kind of plastic bag which can be repeatedly sealed is made of polyethylene (LDPE) and high-pressure linear polyethylene (LLDPE) through film blowing and hot cutting machine. Common materials are PE, EVA, pet, composite bag, etc.
There are many types of self sealing self sealing bags. Single film is used to cut back and heat seal both sides, and then glue mouth is pasted on one side of the bag. Common materials are: OPP self-adhesive, express bag (multi-layer coextrusion film), PP, PVC, etc.
Dongguan self supporting zipper bag small knitting: LLF
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