Materials for heating instant vacuum packaging bags

Heating instant vacuum packaging bags can effectively prevent food spoilage, maintain its color, aroma, taste, and nutritional value. Effectively extending the shelf life of food while also being heated with packaging to maintain its original flavor, it has been widely used in the food industry. Heating ready to eat vacuum packaging bags also require the material of vacuum packaging bags to withstand high temperatures. So, what are the materials for heating ready to eat vacuum packaging bags?

Common materials for heating ready to eat vacuum packaging bags:

1. Polyester: It has excellent transparency, heat resistance, and wear resistance
2. Nylon: There are two types: biaxially stretched and unstretched. Biaxially stretched nylon film not only has excellent heat and cold resistance, but also tear strength and pinhole resistance. Therefore, it can be reused together with other raw materials. In addition, in order to prevent curling and improve strength, nylon 6-6 film is also used, but the price is higher than nylon 6
3. High density polyethylene: Although this film has poor gas barrier properties, it can be used as a sealing layer due to its strong tensile strength, excellent elongation at break strength, and good sealing adaptability. However, high-density polyethylene has several characteristics in terms of heat resistance, with a temperature tolerance of 120 ℃.
4. Polypropylene: It has good transparency, oil resistance, and heat resistance compared to special polyethylene, so it can be used as a sealing layer for cooking bags and cooking cellars.
5. Aluminum foil: It has excellent light shielding, moisture resistance, gas barrier and confidentiality, and can effectively protect the packaged material, so it is more suitable as a packaging material for fatty foods.

Heating ready to eat vacuum packaging bag material structure:

Heating ready to eat vacuum packaging bags are often made of three layers of composite materials, with the representative material structure being: the outer layer is made of polyester film for reinforcement; The middle layer is made of aluminum foil, which is used for light, moisture, and gas leakage prevention; The inner layer is made of polyolefin film (such as polypropylene film), used for heat sealing and contact with food.

The above introduction about the materials of instant heating vacuum packaging bags is organized by Jinde Packaging. Jinde Packaging provides one-stop services for food vacuum packaging bag design, printing, lamination, slitting, and bag making, with more than 10 years of industry experience accumulation. It has in-depth research on various food packaging materials and can provide design solutions to help users purchase high-quality ideal packaging at a low price. Consultation hotline: 15902743510