The machines for producing plastic bags mainly include the following types
1. Film blowing machine (blow molding machine)
Function: Film blowing machine is the main equipment for producing plastic film. It processes plastic raw materials into continuous films through processes such as extrusion, inflation and traction.
Application: These films can be further processed into various plastic bags, such as shopping bags, garbage bags, cling film, etc.
2. Plastic bag making machine
Classification:
Flat-mouth bag making machine: Mainly used for the production of flat-mouth plastic bags, with simple operation and high production efficiency, it can quickly complete the feeding, positioning, heat sealing, cutting and other processes of the roll material.
Heat sealing bag making machine: After the plastic film is heated to a certain temperature through heat sealing technology, two or more layers of film are sealed together under pressure to form a bag body.
Non-woven bag making machine: Specially used for the production of non-woven bags, non-woven materials are processed into bag bodies through ultrasonic, hot pressing and other technologies.
Three-dimensional bag making machine: Equipment that can produce three-dimensional plastic bags. The three-dimensional bags produced have the advantages of strong sense of space and good display effect.
Zipper bag making machine: can produce plastic bags with zippers, making the bag body reusable.
Fully automatic high-speed bag making machine: equipment that integrates feeding, positioning, heat sealing, cutting and other processes, with high production efficiency and high degree of automation.
Multifunctional bag making machine: equipment that integrates multiple bag making functions and can produce plastic bags of various types and specifications.
Application: These bag making machines can produce plastic bags of various specifications and types according to different needs and materials, and are widely used in food, clothing, daily necessities, medicine, chemical industry and other industries.
3. Supporting equipment
Plate making equipment: used to make printing plates for plastic bags.
Plastic printing machine: used to print patterns and texts on plastic bags. Common varieties include gravure printing machine, plate printing machine, roller printing machine, screen printing machine, etc.
Compounding machine: used to compound films of different materials to enhance the strength and barrier properties of plastic bags.
Other supporting equipment: such as mixers, proofing machines, punching machines, punching machines, balers, etc., these equipment also play an important role in the production process of plastic bags.
