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Food vacuum packaging bags are widely-used very frequently throughout our day to day life. Numerous households use vacuum bags to package deal foods to be able to expand the life. The particular material of typically the vacuum bag immediately affects its fresh-keeping performance. Next, let's take a check out the stuff and characteristics of the vacuum bag.Commonly used https://www.sunkeypackaging.com/ packaging materials are while follows:First, polyester material vacuum bag:Polyester-made is a general term for polymers obtained by polycondensation of a polyhydric alcohol and some sort of polybasic acid. Largely refers to polyethylene terephthalate (PET), polyester (PET) vacuum bag. It is a colorless transparent, gleaming vacuum bag, which in turn is made involving polyethylene terephthalate. Some sort of vacuum bag materials made by extrusion straight into a slab plus then biaxially expanded. Excellent mechanical components, high rigidity, firmness and toughness, puncture resistance, friction level of resistance, high temperature and even low temperature resistance, great chemical resistance, oil resistance, air tightness and aroma preservation. This is a commonly used barrier composite vacuum bag substrate. a single. It is commonly used as the external layer material with regard to retort packaging, plus has good publishing performance.<img width="444" src="">Second, nylon vacuum bag:Synthetic (PA) vacuum bag is an extremely tough vacuum bag with good openness, good gloss, high tensile strength, high tensile strength, good heat resistance, cold weight, oil resistance and It is superb in organic solvent resistance, abrasion opposition and puncture weight, and is also relatively gentle and it has excellent o2 barrier properties. It is suited to packaging hard articles such as greasy food, meat products, deep-fried foods, vacuum-packed food items, and retort meals.A higher overall performance nylon composite bag and also a multi-layer co-extruded vacuum bag can easily be derived in the basis associated with a nylon vacuum bag.The primary elements of nylon amalgamated bag are PET/PE, PVC/PE, NY/PVDC, PE/PVDC, PP/PVDC. The main difference involving the composite bag as well as the process is the foundation material, laminating glue, barrier material plus heat sealing stuff., printing and protecting layer coatings and also other components.The multi-layer co-extruded vacuum bag is mainly constructed of nylon, which in turn is composed involving PA, EVOH plus PE, PP, TIE and other resins, plus adopts a shaped or asymmetric combination structure. Due to be able to the addition associated with PA and EVOH, not only the particular barrier properties involving the multilayer motion picture to oxygen and even flavor, the composite peel strength, typically the environmental resistance plus the fresh-keeping storage period are greatly improved. It has the particular characteristics of no pollution, high obstacle, strong function, minimal cost, small potential ratio, high power and versatile structure. It makes the production method of food packaging materials non-polluting. Last, PE vacuum bag:Polyethylene (PE) can be a thermoplastic resin received by polymerizing ethylene. The transparency is lower than that regarding nylon, the hand feels stiff, typically the sound is sharp, and it offers excellent gas hurdle, oil resistance and even fragrance retention attributes. Not suitable regarding high temperature plus refrigerated use, the cost is cheaper than nylon. Generally used for ordinary vacuum bag materials without specific requirements.Fourth, aluminum foil vacuum bag:Aluminum-plastic composite vacuum packaging bag (PET/AL/PE or PET/NY/AL/PE or PET/NY/AL/CPP), the key component is light weight aluminum foil, opaque, silvery white, anti-gloss, good barrier, heat sealability, light blocking, higher temperature resistance, low temperature resistance, oil resistance, aroma retention; non-toxic and tasteless; softness and other attributes. It truly is suitable for moisture-proof, light-proof and even vacuum packaging regarding large-scale precision devices and equipment, chemical substance raw materials and pharmaceutical intermediates. It adopts four-layer framework and has good water-proof and oxygen-blocking functions. Aluminum evade vacuum bags are widespread in foodstuff, electronics, chemical in addition to other industries. Because the raw elements of aluminum foil itself are relatively expensive, the expense of vacuum will be relatively high.The above is the introduction with the common materials and characteristics of vacuum packaging bags summarized by Pingfei Presentation. I believe of which after reading, a lot of friends could have the general understanding think about their own merchandise packaging bags.