公开(公告)号：AU2019222771B2

公开(公告)日：2024-06-13

申请号：AU2019222771

申请日：2019-02-14

Applicant: DONALDSON COMPANY INC

Inventor： RAHMATHULLAH AFLAL ,  DALLAS ANDREW J ,  SONTAG STEPHEN K ,  HAUSER BRADLY G ,  MORAVEC DAVIS B ,  KAPOOR VIJAY K ,  GOERTZ MATTHEW P ,  TUMA DANIEL L ,  DAMMANN WARREN E ,  CRONIN MICHAEL J ,  MADSEN MIKE J ,  RAJGARHIA STUTI S ,  CHRIST CHARLES S ,  BLOCK JOSEPH M

IPC: B01D39/16 ,  B01D39/18 ,  B01D39/20

Abstract: The current technology relates to substrate treatments, treated substrates, and filters. Treated substrates can have a treated surface that defines a pattern and/or gradient among untreated surface areas. A treated surface area can have a higher roll off angle for a 50 μL water droplet when the surface is immersed in toluene that the untreated surface areas. Substrates can be treated by, for example, exposing a substrate surface and/or fibers to ultraviolet (UV) radiation. UV radiation can be applied to surfaces via a mask, lens, waveguide, reflector, as examples. UV radiation can be applied to surfaces at varying intensities, which can create a treatment gradient.