In the choice of vacuum bag material we may have doubts, today to introduce the difference between polyester vacuum bag and nylon vacuum bag.
Polyester vacuum bag is polyethylene terephthalate as raw material, the use of extrusion made of thick film, and then by the two-way stretch made of vacuum bag material. It is a colorless, transparent, shiny vacuum bag, excellent mechanical properties, rigidity, hardness and toughness, puncture resistance, abrasion resistance, high temperature and low temperature, chemical resistance, oil resistance, air tightness and fragrance Good, is commonly used barrier composite vacuum bag one of the base. But the price of polyester vacuum bag is higher, the general thickness of 12 μ m, commonly used for cooking packaging of the outer material, printing is better.
Nylon vacuum bag is a very tough vacuum bag, good transparency, and has a good gloss, tensile strength, high tensile strength, but also has good heat resistance, cold resistance, oil resistance and resistance to organic solvents Good resistance to puncture, and is relatively soft, excellent oxygen barrier, but the water vapor barrier is poor, moisture absorption, moisture permeability, heat sealing is poor, suitable for packaging hard objects, Such as greasy food, meat products, fried foods, vacuum packaging food, cooking food