Abstract: This invention concerns a foil for electrically or mechanically operated dry shavers.More especially the invention concerns a foil made from a sheet having perforations and bars between the perforations, the bars being dished in cross-sectional profile, the base of the dished profile being flat and of uniform thickness (t) while the edges extend at an obtuse angle .alpha. to the base, terminating in coplanar faces parallel to the base, the width of the face (w) being not greater than the thickness (t).The foils are especially suitable for battery operated razors, in which the reduced thickness (t) leads to reduced power consumption and longer battery life.

Abstract: The invention concerns a method for producing foils for dry shavers.The method of the invention includes forming a layer of photosensitive material on each side of a metal plate, exposing each side to light to produce a pattern of exposed and unexposed areas, corresponding to perforations at one side and recesses in the backs of the bars of the foil on the other side, etching each side, them removing photosensitive material from the front side and carrying out further etching until the foil is completely perforated.The invention is especially suitable for forming foils for battery operated dry shavers.