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What are the common materials with regard to vacuum food packaging bags?
Food vacuum packaging bags are employed very frequently within our everyday life. Numerous households use vacuum bags to deal foods in order to lengthen the life. The particular material of the vacuum bag immediately affects its fresh-keeping performance. Next, let's look into the substance and characteristics associated with the vacuum bag.


Commonly used foods grade vacuum packaging materials are while follows:

First, polyester-made vacuum bag:


Fabric-made is a standard term for polymers obtained by polycondensation of a polyhydric alcohol and a polybasic acid. Generally refers to polyethylene terephthalate (PET), fabric-made (PET) vacuum bag. It is a colorless transparent, shiny vacuum bag, which is made associated with polyethylene terephthalate. The vacuum bag materials produced by extrusion into a slab plus then biaxially extended. Excellent mechanical components, high rigidity, firmness and toughness, penetration resistance, friction opposition, high temperature and even cold, frigidity, frigidness, coldness resistance, very good chemical resistance, oil resistance, air tightness and aroma maintenance. This can be a commonly employed barrier composite vacuum bag substrate. one particular. It is widely used as the outer layer material regarding retort packaging, and has good printing performance.

Second, nylon vacuum bag:

Nylon (PA) vacuum bag is a quite tough vacuum bag with good openness, good gloss, higher ultimate tensile strength, high tensile strength, good heat resistance, cold resistance, oil resistance and It is outstanding in organic solvent resistance, abrasion level of resistance and puncture resistance, and is also relatively very soft and possesses excellent oxygen barrier properties. This is ideal for packaging hard articles such as greasy food items, meat products, fried foods, vacuum-packed meals, and retort foods.

A higher overall performance nylon composite bag along with a multi-layer co-extruded vacuum bag can be derived on the basis regarding a nylon vacuum bag.

The key pieces of nylon composite bag are PET/PE, PVC/PE, NY/PVDC, PE/PVDC, PP/PVDC. The key difference between your amalgamated bag along with the process is the bottom material, laminating stuff, barrier material and heat sealing materials., printing and defensive layer coatings and also other components.

The multi-layer co-extruded vacuum bag is mainly consisting of nylon, which often is composed regarding PA, EVOH plus PE, PP, LINK as well as other resins, plus adopts a shaped or asymmetric mixture structure. Due to the addition involving PA and EVOH, not only the particular barrier properties of the multilayer film to oxygen and even flavor, the composite resin peel strength, the environmental resistance and the fresh-keeping storage period of time are greatly improved. It has typically the characteristics of not any pollution, high buffer, strong function, reduced cost, small potential ratio, high strength and flexible structure. This makes the production procedure of food packaging materials non-polluting. sunkey , PE vacuum bag:

Polyethylene (PE) is actually a thermoplastic resin acquired by polymerizing ethylene. The transparency is lower than that regarding nylon, the palm feels stiff, typically the sound is sharp, and it offers excellent gas buffer, oil resistance plus fragrance retention properties. Not suitable with regard to high temperature and even refrigerated use, the retail price is cheaper than nylon. Generally used with regard to ordinary vacuum bag materials without exclusive requirements.

Fourth, light weight aluminum foil vacuum bag:

Aluminum-plastic composite vacuum packaging bag (PET/AL/PE or PET/NY/AL/PE or perhaps PET/NY/AL/CPP), the key component is aluminum foil, opaque, silvery white, anti-gloss, very good barrier, heat sealability, light blocking, substantial temperature resistance, low temperature resistance, oil opposition, aroma retention; non-toxic and tasteless; gentleness and other features. It is suitable for moisture-proof, light-proof and even vacuum packaging regarding large-scale precision equipment and equipment, chemical substance raw materials in addition to pharmaceutical intermediates. That adopts four-layer construction and has very good water-proof and oxygen-blocking functions. Aluminum evade vacuum bags are usually traditionally used in meals, electronics, chemical and even other industries. Due to the fact the raw materials of aluminum evade itself are fairly expensive, the price of vacuum is going to be relatively high.

The above is the introduction in the common materials and even characteristics of vacuum packaging bags described by Pingfei Packaging. I believe that after reading, a lot of friends may have a new general understanding when choosing their own item packaging bags.

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