Blown Film Machines

• Three-layer Co-extrusion Downward Rotating Blown Film Machine: This type of blown film machine is mainly suitable for raw materials such as LDPE/LLDPE/MLLDPE/PLA+PBAT+calcium carbonate+corn starch/biobased materials/recycled materials. It can be used to produce various products such as express bags, flat bags, environmentally friendly packaging bags, and composite film rolls. Its advantage lies in reducing product costs while improving quality and strength. The produced films have good physical properties and durability, meeting the quality requirements of plastic bags in different industries.
• Degradable Material Blown Film Machine: With the increasing awareness of environmental protection, degradable material blown film machines are being increasingly widely used. It uses degradable materials such as PLA, PBAT, corn starch, calcium carbonate, and biobased materials as raw materials to produce 背心袋 (vest bags), garbage bags and other products that are fully degradable and pollution-free, meeting the current environmental protection policies and the market demand for green packaging.
• High-Pressure Special Blown Film Machine: Mainly applicable to LDPE/LLDPE/MLLDPE raw materials, it is used to produce flat bags, clothing packaging bags, industrial packaging films, agricultural film greenhouse films, etc. The film produced by this machine has high transparency, making the contents of the package clearly visible and enhancing the display effect of the product. It is especially suitable for packaging products with high appearance requirements.

  Bag Making Machines

  
  
  Bag making machines can further process the blown plastic films into plastic bags of various shapes and specifications.
  • Automatic Flying Knife Flat Mouth Bag Making Machine: This equipment adopts advanced flying knife cutting technology, which can quickly and accurately cut the film into flat mouth plastic bags, and is equipped with a washing machine heat sealing and cold cutting function to ensure the firm sealing of the bag mouth, improving production efficiency and product quality. It is suitable for large-scale production of various flat bags, such as supermarket shopping bags, garbage bags, etc.
  • Sealing Bag Making Machine: Specifically designed for the production of sealed bag products such as PE self-sealing bags and fully automatic zipper bags. It has high-precision edge sealing and cutting functions to ensure good sealing performance of the bags, preventing items from leaking or getting damp. It is widely used in the packaging of food, medicine, electronics and other industries.
  • Computerized Double-Layer High-Speed Bag Making Machine: Through the computer control system, it can accurately control parameters such as the length, width, and speed of bag making, realizing high-speed and stable production. It can produce double-layer plastic bags simultaneously, improving production efficiency and meeting the production requirements of plastic bags with different specifications and complex designs, such as clothing bags, stationery bags, etc.

    Printing Machines

    
    
    To meet the personalized customization and brand promotion needs of plastic bags, printing machines are indispensable in plastic bag production.
    • Six-Color Printing Machine: It can perform multi-color printing on the surface of plastic bags, with bright colors and clear patterns, enabling complex designs and exquisite printing effects, increasing the added value and attractiveness of plastic bags. It is often used for printing food bags, gift bags, and other products with high appearance requirements.
    • Plastic Bag Surface Color Printing Machine: For example, the color printing machine patented by Taizhou Jinlida Flexible Packaging Color Printing Co., Ltd. in 2024 can flatten the plastic bag before processing to ensure the flatness of the plastic bag during processing and avoid wrinkled misprints. Moreover, after processing, it can accelerate the drying speed of the ink by blowing air to facilitate the subsequent collection of plastic bags, greatly improving the printing quality and production efficiency.
    
    

    Other Advanced Equipment

    
    
    In addition to the above main equipment, plastic bag factories are also equipped with some other advanced equipment to further improve the production process and product quality.
    
    
    • Automatic Cutting and Sewing Integrated Machine: For example, the automatic cutting and sewing integrated machine developed by Woyang County Lida Plastic Packaging Products Co., Ltd. can automatically complete the cutting and sewing processes of plastic bags, reducing manual operation, improving production efficiency and product consistency, and reducing production costs.
    • Plastic Packaging Bag Sealing Machine: The sealing machine patented by Neijiang Lesheng Packaging Materials Co., Ltd. in 2024 can precisely control the distance between the sealing position and the bag mouth according to the packaging needs of different products through the cooperation of the distance adjustment mechanism and the pressing mechanism, making the sealing positions of different plastic packaging bags approximately the same, effectively preventing the sealing from being skewed and ensuring the sealing quality.
    • Fully Automatic Valve Pocket Packaging Machine: Xinyuan Technology's new generation of fully automatic valve pocket packaging machine adopts rotary pressure filling technology and PLC intelligent microcomputer control, with automatic data parameter setting, adjustment, tracking, and fault alarm prompt functions. Equipped with an imported chip electronic weighing system, it has high sampling recognition sensitivity and stable performance, enabling high-precision quantitative packaging. It is suitable for the plastic bag packaging of various powdered materials, and after adding a conveying and palletizing device at the rear, it can form a highly efficient fully automatic production line.
    
    
    The application of these advanced equipments enables plastic bag factories to stand out in the fierce market competition, achieve efficient, high-quality, and environmentally friendly production goals, meet the needs of different customers, and promote the development of the plastic bag industry to a higher level.