Hello everyone, I’m the editor from Platinum. Today, we’ll take a look at the material structures and packaging requirements of composite packaging products. Packaging bags are used to wrap various items, making it easier to transport and store goods throughout production and distribution. They’re widely employed in both daily life and industrial manufacturing. Based on their manufacturing processes, they’re typically categorized into plastic packaging bags and composite packaging bags. Composite packaging aims to enhance the breathability, moisture resistance, oil resistance, water resistance, and chemical resistance of packaging materials, providing protection against insects, dust, microorganisms, and odors such as light, fragrance, and unpleasant smells. Additionally, these packages offer improved heat resistance, cold resistance, impact resistance, superior mechanical strength, better processability, and excellent printing and decorative effects. Instant noodles: The typical structure is BOPP 18/VMCPP 25, BOPP 18/CPP 20, or BOPP 18/PE 20. The common packaging method is standard automatic film roll packaging, with requirements for oil resistance, moisture resistance, cost-effectiveness, and high-temperature compatibility. Puffed snacks: The main material structure is BOPP 18/VMCPP 25, BOPP 18/VMPET 12/PE 40. The packaging method is inflatable packaging, with requirements for airtightness, light-blocking properties, and oil resistance. Candies, biscuits, vermicelli, dried foods, and dried fruits: The primary material structures include OPP/CPP and OPP/VMCPP. Packaging methods range from manual to automatic film roll wrapping, with requirements for transparency, gloss, aesthetic appeal, and cost-efficiency. Liquid detergents and creams: Common material structures are PET/VMPET/PE, PET/AL/PE, and PET/PA/PE. The packaging method is automated liquid filling, with key requirements being contamination resistance, light-blocking properties, airtightness, and high strength. Oils and soy sauce: Typical material structures include PET/PE, PA/PE, PA/CPP, and PET/CPP. These are packaged using automated liquid filling, with requirements for contamination resistance, pressure resistance, high-speed packaging, and strong heat-sealing performance. Coffee, tea, and seasoning powders: Material structures encompass PET/VMPET/PE, PET/AL/PE, and OPP/VMPET/PE, OPP/AL/PE. Packaging methods involve standard manual or automated vacuum sealing, with requirements for aroma retention, light-blocking properties, airtightness, antistatic qualities, and resistance to contamination. Meat and fish products: Main material structures include PA/PE and PET/PE. Packaging methods involve vacuum sealing and freezing, with requirements for barrier properties, puncture resistance, strong heat-sealing, and heat resistance. Stand-up pouches for liquids: Structures typically consist of PET/AL/PET/PE, PET/AL/NY/PE, BOPP/NY/PE, or PET/PE. These are filled automatically, with requirements for barrier properties, pressure resistance, heat resistance, puncture resistance, and contamination resistance. Cooked and steamed foods: Material structures include PET/RCPP, PA/RCPP, and PET/AL/NY/RCPP. Packaging involves high-temperature sterilization at 121–135°C, with requirements for strong heat-sealing and heat resistance. Rice and rice-based products: The main material structure is PA/PE. Vacuum packaging is used, with requirements for high tensile strength, low-temperature heat-sealing, and transparency. The above outlines the commonly used structural classifications for composite packaging products. Depending on the type of product being packaged and its specific requirements, the material structure will vary accordingly. If you’d like to learn more, please contact our editor—we’ll be happy to answer your questions. For custom packaging bag requests, simply provide your packaging specifications, bag dimensions, material structure, and artwork, or share your ideas; our factory can assist you as well. Feel free to reach out! For more information, visit: [http://www.sinoypackaging.cn/product/35.html](http://www.sinoypackaging.cn/product/35.html) [http://www.sinoypackaging.cn/product/32.html?productCateId=12](http://www.sinoypackaging.cn/product/32.html?productCateId=12) Contact: Manager Duan Phone: 13326397391 Address: No. 506 Guangzhou North Road, Jiaozhou City, Qingdao

Steam‑cooked food bags, meat product packaging bags, coffee bags, tea bags