Abstract: There is disclosed a process for manufacturing a body of fibers for use in a brush as well as the brush so produced. This process comprises inserting a plurality of fibers into an opening of a plate, separating the fibers into a plurality of fiber bunches or curtains, applying an adhesive to the end of the fibers which is at the base of the plate, and removing the body of fibers from the plate, such that the body of fibers contains at least one parallel space or passage between the curtains of fibers. The body of fibers is then inserted into a brush handle. This brush may be used to apply coating liquids such as paints and varnishes.