Manufacturing Of Ultrasonic Protective Clothing
Manufacturing of ultrasonic protective clothing-cheersonic
In an era when public health security is highly concerned, as the last line of defense against viruses, bacteria and harmful substances, the innovation of the manufacturing process of protective clothing is of vital importance. The production of traditional protective clothing relies on sewing with needles and threads or bonding with hot melt adhesives, which poses risks such as seam leakage and poor comfort. However, ultrasonic technology, with its high efficiency, precision and environmental friendliness, is reshaping the manufacturing standards of protective clothing and building a more reliable safety barrier for medical staff and frontline workers.
Technical principle:
The core of applying ultrasonic technology to the manufacturing of protective clothing lies in the high-frequency vibration welding and spraying processes.
- Welding technology: A high-frequency electrical signal of 20-40 KHZ is generated by an ultrasonic generator, which is converted into mechanical vibration by a transducer. The welding head transmits the vibration energy to the protective clothing fabric (such as polypropylene spunbond fabric, polyester composite film), instantly generating local high temperature to melt the material. Under pressure, molecular-level bonding is achieved to form a seamless sealed weld seam.
- Spraying technology: By using ultrasonic high-frequency vibration, functional materials such as antibacterial agents and antiviral coatings are atomized into ultra-fine droplets of 1-5 microns, which are evenly deposited on the surface of the fabric to form an ultra-thin and breathable protective layer.
Core advantage: Breaking through traditional craftsmanship
1.Seamless welding eliminates the risk of leakage
Protective suits sewn with traditional needles and threads have pinholes, which can easily become channels for viruses and liquids to penetrate. Hot melt adhesive bonding may cause leakage points due to uneven distribution of the adhesive. Ultrasonic welding forms a continuous and hole-free sealed weld seam, which can increase the liquid hydrostatic pressure of protective clothing to over 20kPa (the national standard requires ≥1.67kPa), and the bacterial filtration efficiency (BFE) is stably maintained at over 99.9%.
- Efficient production and response to emergency demands
Traditional protective clothing production lines rely on manual labor or semi-automated equipment, with a production capacity of typically 10 to 15 pieces per minute, and frequent changes of needles, threads or glue are required. Ultrasonic welding equipment achieves full-process automation. A single production line can produce 30 to 50 pieces per minute, increasing production capacity by 2 to 3 times. During the peak of the epidemic, the production line equipped with ultrasonic technology operated 24 hours a day, with a daily production capacity of up to 72,000 pieces, quickly alleviating the pressure of material shortage.
- Comfortable and environmentally friendly, with performance taken into account
Ultrasonic welding does not require needles and threads, avoiding the irritation to the skin caused by the friction of stitches. Meanwhile, there is no residue of chemical adhesives during the welding process, reducing the risk of allergies. In addition, the ultra-thin functional coating (with a thickness of ≤20 microns) formed by ultrasonic spraying can retain the original breathability of the fabric, reducing the wearer’s feeling of stuffiness by 30%. During the production process, the acoustic wave technology does not require solvent-based adhesives, with a material utilization rate of over 98%, reducing the emission of volatile organic pollutants by 60%, and practicing the concept of green manufacturing.
In the future, this technology will continue to iterate and innovate, promoting protective clothing towards intelligence, multi-functionality and sustainability, making each protective suit a safety barrier where technology and humanity interweave, and safeguarding human health.