Bubble bag is a packaging material processed by bubble film, mainly used to protect fragile products, electronic products and so on. The process of making bubble bag mainly includes bubble film production, cutting, sealing and other steps.
1. Bubble bag production process
- Prepare materials and tools: You need plastic film rolls, bubble wrap machines, sealing machines, cutting tools, and other materials. The plastic film should be of suitable thickness and width, and the bubble wrap machine should be selected according to the production scale and requirements.
- Install and adjust the bubble wrap machine: Install the plastic film roll on the bubble wrap machine and adjust the machine's parameters, including temperature, pressure, and speed. The temperature should be set to a suitable level to ensure the plastic film melts evenly. The pressure affects the formation and size of the bubbles, and the speed determines the production efficiency.
- Produce bubble wrap: Start the bubble wrap machine. The machine will heat and extrude the plastic film, and at the same time, introduce air into the film to form bubbles. The formed bubble wrap is wound on the take - up roller.
- Cut the bubble wrap: According to the size requirements of the bubble bags, use a cutting tool to cut the bubble wrap into appropriate lengths. You can use a manual cutting knife or an automatic cutting machine.
- Seal the bubble bags: Put the cut bubble wrap into a sealing machine. Seal the three sides of the bubble wrap to form a bag - like structure. The sealing temperature and time should be adjusted properly to ensure a firm seal.
- Quality inspection: Check the quality of the made bubble bags, including whether the bubbles are evenly distributed, whether the sealing is firm, and whether there are any holes or damages on the surface. Reject the unqualified products.
- Packaging and storage: Pack the qualified bubble bags in bundles or boxes and store them in a dry and ventilated place to avoid moisture and damage.
2. Device recommendation
1. Bubble film machine
Single-layer bubble film machine (suitable for ordinary bubble film)
Double/multi-layer co-extruded bubble film machine (can produce aluminum foil composite film, etc.)
2. Processing equipment
Cutting machine (manual/automatic)
Sealing machine (ultrasonic, heat sealing)
Printing equipment (inkjet printer, screen printer)
3. Precautions
✅ Choose the right film material: Use different materials for different applications (ordinary/anti-static/moisture-proof).
✅ Control sealing temperature: high temperature may lead to melting, too low sealing is not firm.
✅ Keep the tension even: prevent cutting deformation, affecting the appearance and quality of the bag.
✅ Regular maintenance of equipment: ensure cutting and sealing accuracy, improve the qualified rate of finished products.
