Patent ID: 9174152
Filing Date: 2015-11-03
Classification: B01D,Y10T

Abstract:
1. A method of fabricating a filter medium, comprising: forming a plurality of first fibers by a first spinning device; forming a plurality of second fibers by a second spinning device; collecting, on a reception device, a film having a three-dimensional non-woven structure constructed by the first fibers and the second fibers, wherein each of the first fibers has a diameter of 1-50 μm; each of the second fibers has a diameter of 1-1000 nm; the second spinning device is located between the first spinning device and the reception device; the first fibers and the second fibers stack with each other in a random manner to form the three-dimensional non-woven structure; wherein the first spinning device is a melt-blowing apparatus and the second spinning device is an electro-spinning apparatus.