Notes

What are the common materials for vacuum food packaging bags?
sunkey packaging bags are used very frequently throughout our lifestyle. Many households use vacuum bags to package deal foods to be able to prolong the life. The material of the particular vacuum bag straight affects its fresh-keeping performance. Next, why don't look into the substance and characteristics involving the vacuum bag.


Commonly used foods grade vacuum packaging materials are as follows:

First, polyester-made vacuum bag:

Polyester is a general term for polymers obtained by polycondensation of a polyhydric alcohol and the polybasic acid. Mainly refers to polyethylene terephthalate (PET), polyester (PET) vacuum bag. It is the colorless transparent, shiny vacuum bag, which usually is made associated with polyethylene terephthalate. A vacuum bag substance produced by extrusion into a slab and even then biaxially stretched. Excellent mechanical properties, high rigidity, firmness and toughness, leak resistance, friction level of resistance, high temperature and cold, frigidity, frigidness, coldness resistance, very good chemical resistance, oil resistance, air rigidity and aroma maintenance. It is just a commonly employed barrier composite vacuum bag substrate. one. It is widely used as the exterior layer material with regard to retort packaging, and even has good making performance.

Second, nylon vacuum bag:

Synthetic (PA) vacuum bag is a quite tough vacuum bag with good transparency, good gloss, higher ultimate tensile strength, high tensile strength, good warmth resistance, cold resistance, oil resistance plus It is outstanding in organic solvent resistance, abrasion opposition and puncture resistance, and it is relatively very soft and contains excellent o2 barrier properties. This is well suited for packaging hard articles such as greasy foods, meat products, deep-fried foods, vacuum-packed meals, and retort food.


A higher performance nylon composite bag plus a multi-layer co-extruded vacuum bag can easily be derived in the basis regarding a nylon vacuum bag.

The key parts of nylon composite bag are PET/PE, PVC/PE, NY/PVDC, PE/PVDC, PP/PVDC. The primary difference involving the composite bag along with the process is the basic material, laminating glue, barrier material plus heat sealing material., printing and protecting layer coatings and also other components.

The multi-layer co-extruded vacuum bag is mainly made up of nylon, which is composed of PA, EVOH plus PE, PP, LINK as well as other resins, in addition to adopts a symmetrical or asymmetric blend structure. Due in order to the addition of PA and EVOH, not only the barrier properties involving the multilayer movie to oxygen and even flavor, the amalgamated peel strength, the environmental resistance as well as the fresh-keeping storage period are greatly better. It has typically the characteristics of zero pollution, high buffer, strong function, reduced cost, small ability ratio, high power and flexible structure. That makes the production process of food packaging materials non-polluting. Third, PE vacuum bag:

Polyethylene (PE) is really a thermoplastic resin acquired by polymerizing ethylene. The transparency is lower than that associated with nylon, the hands feels stiff, the sound is crisp, and it has excellent gas obstacle, oil resistance and fragrance retention attributes. Not suitable regarding high temperature plus refrigerated use, the price 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 major component is light weight aluminum foil, opaque, silvery white, anti-gloss, good barrier, heat sealability, light blocking, substantial temperature resistance, low temperature resistance, oil weight, aroma retention; non-toxic and tasteless; real softness and other features. Its suitable with regard to moisture-proof, light-proof and vacuum packaging involving large-scale precision devices and equipment, chemical substance raw materials and even pharmaceutical intermediates. It adopts four-layer construction and has very good water-proof and oxygen-blocking functions. Aluminum evade vacuum bags are widely used in meals, electronics, chemical in addition to other industries. Mainly because the raw materials of aluminum foil itself are fairly expensive, the price of vacuum is going to be relatively high.

The aforementioned is the introduction with the common materials and even characteristics of vacuum packaging bags summarized by Pingfei Packing. I believe of which after reading, several friends could have the general understanding think about their own product packaging bags.

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