POLYMER NANOFIBER STRUCTURE AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polymer nanofiber structure having durability free from an occurrence of peeling without bonding a plurality of nanofiber layers.SOLUTION: The nanofiber structure is provided by accumulating polymer nanofibers and has a first layer 2 and a second layer 4 each has a different existence ratio of polymer nanofibers. The first layer 2 and the second layer 4 are accumulated via a buffer region 3. The buffer region 3 contacts directly the first layer 2 and the second layer 4 and is a region where a polymer nanofiber existence ratio continuously varies from a polymer nanofiber existence ratio of the first layer 2 and to a polymer nanofiber existence ratio of the second layer 4 from the first layer 2 toward the second layer 4.