processing method

Meltblown Nonwovens

The meltblown technology is based on the meltblowing process, where, usually, a thermoplastic fiber forming polymer, like polypropylene, is extruded through a linear die containing several hundred small orifices. Convergent streams of hot air (exiting from the top and bottom sides of the die nosepiece) rapidly attenuate the extruded polymer streams to form extremely fine diameter fibers (1–5 micrometer). The attenuated fibers are subsequently blown by high-velocity air onto a collector conveyor, thus forming a fine fibered self-bonded meltblown nonwoven fabric.

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