Inventors:
Martin Allen - Dawsonville GA, US
Patrick Crane - Dawsonville GA, US
Jon Butt - Atlanta GA, US
Assignee:
Nordson Corporation - Westlake OH
International Classification:
D04H003/16, D04H003/00, B32B005/26
US Classification:
442/361000, 442/401000, 442/352000, 442/364000, 442/362000, 442/382000
Abstract:
A non-woven web formed from substantially continuous and uninterrupted multi-component filaments in which the filaments are spun at a spinning speed adequate for molecularly orienting less than all of the various constituent polymers. After collection, the non-woven web is either heated or receives a tensile force that causes each filament region formed from the polymer lacking molecular orientation to shrink in length considerably more than other filament regions formed from molecularly-oriented polymers. The differential length reduction enhances the loft of the non-woven web.