US Patent 10948386 Collection device and material

Swabs, materials and methods of making the same include randomly arranged sea-island bicomponent fibers which have randomly splayed terminal ends. According to certain embodiments, swabs are provide which include an applicator, and sea-island bicomponent fibers attached to the applicator, wherein at least about 70% of the fibers comprise randomly splayed terminal ends of the islands of said bicomponent fibers along a length of about 45% or less from said ends, and wherein the bicomponent fibers comprise 10-3000 island parts per fiber.