What are the sealing methods for vacuum packaging bags? What are their characteristics and how to choose a suitable sealing method for oneself?

What are the common sealing methods for vacuum packaging? What are their characteristics, and how should each enterprise choose the appropriate sealing method for themselves? Jinde Packaging provided the answer:
1. Heat sealing: Heat sealing is one of the commonly used vacuum packaging sealing methods. It uses heating elements (such as heating strips) to heat the mouth of the packaging bag, causing the bag mouth to fuse together to form a seal. Heat sealing is simple and easy to implement, suitable for most conventional materials, but requires high control over temperature and pressure.
2. Pressure sealing: Pressure sealing is another common vacuum packaging sealing method. It uses special sealing tools or machines to apply pressure, pressing the mouth of the packaging bag together to form a seal. Pressure sealing is suitable for various types of packaging bags, and the sealing effect is reliable and reusable.
3. Ultrasonic sealing: Ultrasonic sealing is a method of sealing using the principle of ultrasonic vibration. Ultrasonic waves can pass through the material of the packaging bag and generate frictional heat at the bag opening, causing the materials to fuse together and form a seal. Ultrasonic sealing speed is fast, does not require the use of a heat source, and is suitable for materials that are sensitive to heat and easily damaged.
When choosing a sealing method that suits oneself, the following points need to be considered:
1. Material type: Different sealing methods are suitable for different types of materials. For example, heat sealing is suitable for most conventional materials, while ultrasonic sealing is suitable for heat sensitive and easily damaged materials.
2. Sealing effect and reliability: Different sealing methods have different sealing effects and reliability. You need to choose a suitable sealing method according to your needs to ensure good sealing effect and effectively maintain the vacuum state.
3. Production efficiency and equipment requirements: Different sealing methods may require different equipment and process flows. You need to consider your production scale and requirements to determine whether specialized sealing equipment or tools are needed.
4. Cost and economy: Different sealing methods have different costs. You need to consider the cost-effectiveness of the sealing method and evaluate its impact on product quality and production efficiency.
Taking into account the above factors, choosing a suitable sealing method may require consulting with packaging suppliers or conducting experiments and tests based on actual situations. Jinde Packaging has been focusing on the production and research and development of various vacuum packaging bags for 11 years. We can provide customers with a one-stop service of vacuum packaging bag design, printing, lamination, curing, slitting, bag making, quality inspection, finished products, and delivery. The product has successively obtained multiple certification qualifications such as FDA certification, ISO certification, SGS certification, MA product certification, etc. It can produce more than 500000 pieces per day and sell more than 13000 tons annually. It is a top supplier for Taobao stores and a SKA merchant for Alibaba. Service Hotline: 15902743510