METHOD OF MANUFACTURE OF RAZOR BLADE, RAZOR BLADE AND SHAVING-SET Russian patent published in 1998 - IPC

FIELD: hair cutting from man's skin surface-shaving. SUBSTANCE: shaving- set has a casing that accommodates spaced surfaces engageable with the skin, with a blade installed between them. The blade has a base with a V-shaped sharp edge coated with an intermediate layer and having an additional layer applied over it. The base has an angle at the edge of less than 30 deg. and a top radius of less than 1200 ; material of the intermediate layer is selected from the group including: molybdenum, tantalum, vanadium and their alloys. And the additional layer represents a layer of diamond or diamond-like carbon material, and at a distance of 40 um from the top of the sharp edge it has a thickness of at least 1200 . EFFECT: enhanced quality. 10 cl, 6 dwg