Which is stronger, nylon or polyester, for vacuum bags?

Vacuum bags use the principle of deoxygenation to create a highly depressurized state inside the bag, leaving no living conditions for microorganisms, effectively preventing food spoilage, and maintaining its color, aroma, taste, and nutritional value. Choosing the right vacuum bag material is the key to the success of packaging. Polyester (PET) and nylon (PA) are two commonly used vacuum bag materials in the market. So, which one is stronger, nylon or polyester?

Which is stronger, nylon or polyester, for vacuum bags? To reveal the answer to this question, we need to start with the performance of these two vacuum bag materials. Jinde Packaging will take you through the differences between polyester vacuum bags and nylon vacuum bags in detail.

Polyester vacuum bag (PET)

Polyester vacuum bag is a vacuum bag material made from polyethylene terephthalate as raw material, which is extruded into thick sheets and biaxially stretched. It is a colorless, transparent, and glossy vacuum bag with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low temperature resistance, good chemical resistance, oil resistance, airtightness, and fragrance retention. It is one of the commonly used barrier composite vacuum bag substrates. The outer material commonly used for steaming and cooking packaging has good printing performance.

Nylon vacuum bag (PA)

Nylon vacuum bag is a very tough vacuum bag with good transparency, good gloss, high tensile strength and tensile strength, good heat resistance, cold resistance, oil resistance and organic solvent resistance, good wear resistance and puncture resistance, softness and excellent oxygen resistance. However, it has poor water vapor barrier, moisture absorption, moisture permeability and poor heat sealing performance, and is suitable for packaging hard items such as greasy food, meat products, fried food, vacuum packaged food and steamed food.

Which is stronger, nylon or polyester, for vacuum bags? Have you gained an understanding of the answer to this question through the above introduction? Nylon vacuum bags and polyester vacuum bags have their own strengths, and it is necessary to choose according to specific needs. For more information about vacuum bags, please follow the official website of Jinde Packaging or consult our hotline at 15902743510