Ultrasonic Non-woven Bag Making Technology

Plastic bags not only bring convenience to people's life, but also constitute an important factor of human living environment deterioration. Non-woven fabric production has the characteristics of short process, high yield, fast variety change, wide source of raw materials, long service life, automatic degradation and so on, and is considered as the best substitute for plastic bags. Some experts estimate that non-woven shopping bags can be reused more than 10 times and cause only 10 percent of the pollution of plastic bags. Traditional plastic shopping bags are thin and easy to break in order to save costs. But in order to make him stronger, more money must be spent. The emergence of non-woven shopping bags solves all the problems, non-woven shopping bags, strong toughness, not easy to wear. There are a lot of non-woven plastic shopping bags, but also have the advantages of robustness, waterproof, feel good, beautiful appearance.

Now many machinery manufacturers are actively engaged in the research and development of non-woven bag making machine to occupy the future market and accumulate strength. Ultrasonic non-woven bag making machine adopts advanced ultrasonic fabric bonding technology, with multi-purpose machine, surplus material recovery and other advantages. The automatic control system and ultrasonic bonding application technology is organically combined to explore a new non-woven bag production process. The equipment takes non-woven fabric as raw material, can process various non-woven bags of different specifications and shapes, such as vest bag, handbag, perforated bag, etc., with the advantage of multi-use. The process flow of ultrasonic non-woven bag making machine is feeding (non-woven coil) → folding → ultrasonic bonding → cutting → bag making (punch) → waste recycling → counting → stacking. The process can be fully automated, only 1 or 2 people to operate, production speed and product size can be adjusted within a certain range.

Ultrasonic bag making machine is mainly composed of ultrasonic generator and roller, the main components of ultrasonic generator horn, power supply and transformer. Horns, also known as radiators, focus sound waves on a single plane; The roller, also known as the anvil, is used to collect the heat released from the ultrasonic generator horn. The bonded materials run continuously between the ultrasonic generator "horn" and the roller, and are bonded together under a low static force. A frequency converter converts electricity into high-frequency electricity, which is then converted into ultrasonic vibrators and finally into vibration energy. An amplification system (enhancer) amplifies this vibration energy and transmits it to the horn. The acoustic tool immediately comes into contact with the material to be bonded. These superauditory frequencies cause mechanical pressures between material molecules, release heat, break molecular bonds in the material, cause melting of the material at the bonding point, and then use mechanical pressures to glue two or more layers of material together.

Compared with the traditional needle-type wire suture, ultrasonic bonding, needle-free, eliminating thread changing process, no broken thread joint of traditional suture, but also clean local shearing and sealing of non-woven fabric. The working speed is fast, the sealing edge does not crack, does not hurt the edge of the cloth, and does not have the phenomenon of burrs and curls.