02.11.21
Emerson’s Branson ultrasonic welding technology has been used by face mask manufacturers. Nonwovens Industry spoke to Chris Hartlage, director, Global Business Development for Branson Welding and Assembly at Emerson, about how face masks demand—and the Coronavirus pandemic—have changed the business.
NWI: Can you describe how Emerson’s technology is used for face masks?
CH: Emerson’s Branson ultrasonic plastic welding technology rapidly transforms large, wide rolls of nonwoven fabric into high-quality respirators (e.g., N95, FFP2) or medical-grade surgical masks. First, it cuts and seams wide bands of fabric into narrow strips. Next, the narrow strips are stacked, with an activated filter layer of nonwoven fabric sandwiched between protective inner and outer layers of spun-bond fabric. Then, the sandwiched layers are cut to size, pleated and rapidly “quilted” together with sturdy ultrasonic welds. Ultrasonic spot welds are also used to attach elastic straps or fabric ties to the finished product.
NWI: How has Emerson adjusted its business to respond to rising demand
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