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Author(s): Viorica Porav

Journal: Annals of the University of Oradea. Fascicle of Textiles, Leatherwork
ISSN 1843-813X

Volume: XIV;
Issue: 1;
Start page: 85;
Date: 2013;
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Keywords: ultrasonic weld | ultrasonic sealing technology | fabric welding | ultrasonic bonding | ultrasonic plastic welding machines

In this paper was exposed some research institute from important specialists in textile domain, concerning an unconventional assembly method – ultrasonic weld. An alternative to the classic sewing assembly, with thread and needles is ultrasonic seaming. In ultrasonic welding, there are no connective bolts, nails, soldering materials, or adhesives necessary to bind the materials together. Ultrasonic is defined as acoustic frequencies above the range audible to the human ear. Ultrasonic frequencies are administered to the fabric from the sonotrode of bonding machine. The high frequency and powerful energy produced, when is release in one special environment, the ultrasound heating this environment. The ability to ultrasonic weld textiles and films depend on their thermoplastic contents and the desired end results. The paper defines the weld ability of more common textiles and films. The welding refers to all types of bonding and sealing, as in point bonding of fabric, or continuous sealing of film. With the whole environment gone highly technical and specialized, industrial fabrics are used widely today for making many products such as inflatable boats, sewn technical clothing, tents, awnings, truck tarpaulins, filter bags, airships, bag & luggage, inflatable toys, advertising banners etc. Sewing, seam taping, gluing etc. have gone obsolete for sealing such fabrics that have to be ultra safe and efficient. This welding technology may be an alternative method of manufacturing cloth and is gently with the environment because there are produced less wastes.
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