What material is food vacuum packaging bag?

Food vacuum packaging bags have the functions of oxygen removal, pressure resistance, and air barrier, which can effectively maintain the original color, aroma, taste, shape, and nutritional value of food for a long time. Vacuum packaging bags are a widely used form of packaging in the food industry, and their performance depends on different packaging bag materials. So, what material are food vacuum packaging bags made of?

1. Food vacuum packaging bag: aluminum foil material

Its material is generally PET/AL/CPE or PET/NY/AL/CPE. Among them, PET has good printing effect, NY has low oxygen permeability, AL has strong barrier properties and no light transmission, and CPE is the inner layer of the packaging. This product has good oxygen isolation, shielding, moisture resistance, light shielding functions, and excellent heat sealing properties. Aluminum foil vacuum bags are widely used in industries such as food, electronics, and chemicals. Due to the high cost of aluminum foil raw materials, the cost of vacuum is also relatively high.

2. Food vacuum packaging bags: PE material

Pe bag is a widely used plastic film in the market, with a cheap price. Due to the high breathability and low sealing performance of PE film, it has a higher breakage rate when used as a vacuum bag.

3. Food vacuum packaging bag: Nylon co extruded material

Nylon co extruded bags are composed of PA, EVOH, PE, PP, TIE and other resins, and adopt a symmetrical or asymmetrical combination structure. Due to the addition of PA and EVOH, not only does it greatly improve the barrier properties of multi-layer films against oxygen and fragrance, composite peel strength, environmental resistance, and shelf life. Nylon co extruded bag is a multi-layer co extruded high barrier packaging material. Extrusion composite is a green and environmentally friendly production method for composite soft packaging. Jinde Packaging produces 7 or more extrusion machines for 7-layer nylon co extrusion, which melt and extrude different functional resin materials such as PA, PE, PP, TIE, EVOH, etc., and then merge them through their respective channels in a mold head. After blowing and forming, they are cooled and composite together. Co extruded high barrier packaging materials have the characteristics of high barrier, strong functionality, low cost, small capacity ratio, high strength, and flexible structure, making the production process of food packaging materials green and environmentally friendly.

4. Food vacuum packaging bag: Nylon composite material

The material used for nylon composite bags is similar to that of co extruded nylon. The main difference between PET/PE, PVC/PE, NY/PVDC, PE/PVDC, and PP/PVDC lies in the process. Composite bags are generally composed of substrate, laminating agent, barrier material, heat sealing material, printing and protective layer coating, etc. By laminating layer by layer with a laminating machine, especially in winter, the vacuum damage rate is relatively high.

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