Disposable non-woven fabrics are being widely used, whether it is packaged sterile surgical drape kits or personal protective equipment (such as surgical caps and N95 masks, work clothes, scrubs and foot covers), disposable non-woven fabrics can provide effective And cheap anti-microbial and pollution barrier. Their versatility extends to many other products, including sanitary and absorbent products, from protective covers and pads to diapers, underwear and disposable filters. The above-mentioned products are all made by seamless welding of non-woven materials.

Ultrasonic seamless welding technology has played a key role in promoting the rapid growth of the number of non-woven products and promoting its growth in this market area. Similar to the ultrasonic technology used for welding hard plastic parts, the ultrasonic welding technology transmits high-frequency mechanical vibration through the thermoplastic material through the tool to generate frictional heat, melt the suture surface of the non-woven fabric, and quickly bond the non-woven fabric Together. Ultrasonic seamless welding machine technology has the following advantages.

Low consumption

Due to the speed, reliability, and energy efficiency of ultrasonic welding machines for slitting and stitching, manufacturers of non-woven products continue to convert older and energy-intensive cutting and stitching equipment (such as hot knives) into ultrasonics. The ultrasonic welder consumes power only when actually cutting or bonding. Because it generates heat immediately through high-frequency vibration, the hot knife can be preheated without additional energy consumption, and there is no need to maintain it at a proper working temperature.

high speed

When ultrasonic welding is used to form seams or laminates, it is also very fast, being able to complete a single bond in a fraction of a second. It can also quickly bond continuous seams and is suitable for everything from disposable medical suits, surgical masks and face masks to disposable hygiene products, diapers, nightgowns, filter media, etc. The fast, strong and repeatable bond maintains the same strength as the parent material. Realize rapid production with minimal energy consumption, thereby reducing the cost of disposable absorbents and infection control products.

Good sewing effect

Compared with sewing, ultrasonic waves can form high-strength, high-integrity seams without stitches, and do not need to form mechanical holes in the fabric that can contain and hide microorganisms or contaminants. It also eliminates the need for adhesives, including increased application workload, increased time required for set-up and drying, and increased exposure to chemical contaminants. Ultrasonic seams can be used as soon as they are produced.

Small weld

Although traditional sewing machines have been and will always be common in clothing factories around the world, in many sportswear (including sportswear and outdoor clothing) areas, ultrasonic welding has proven to be a better choice. On traditional sewing machines, the needle pierces the holes in the fabric, weakening the structure of the fabric, and the overlap of the fabric at the seam creates a thick seam, which is heavy, restricts movement, wastes and increases The weight of the garment. Many negative factors in the sportswear market. Ultrasonic sewing machines can create so small welds that they must be supported by seam sealing tapes.

Ultrasonic stitching is also beneficial in the production of many products. Because of the formation of impermeable seams, clothing worn in contaminated environments (such as medical or scientific fields) can protect people from harm. This impermeable seam also facilitates the production of sails, parachutes and any other textile materials that must withstand and withstand strong winds.

reduce waste

Ultrasonic seamless welding technology reduces waste in the production process. Because in the traditional sewing process, needle breakage often occurs, which causes a lot of waste. And because there is no thread in ultrasonic welded clothing, the thread will not deteriorate over time, and a large amount of material and waste can also be reduced. At the same time, this is very beneficial to the environment, making ultrasonic welding technology a "green" technology. When connecting non-woven fabrics together, there is no need for any solvents or adhesives. The difference between ultrasonic sealing and thermal bonding is that due to the use of ultrasonic energy to generate heat in the fiber, fiber degradation is minimized. In thermal bonding, heat energy is applied to the fibers to melt them and avoid burrs.