Razor blade technology

Details Razor blade technology Razor blade technology

B - Operations, Transporting

26

B

B26B 21/60 (2006.01) B23P 15/28 (2006.01) B26B 21/54 (2006.01)

Patent

CA 2054187

2054187 9114548 PCTABS00007 A process for forming a razor blade includes the steps of providing a polycrystalline ceramic substrate (10) of less than two micrometer grain size, mechanically abrading an edge of the polycrystalline ceramic substrate to form a sharpened edge thereon that has an included angle of less than twenty degrees; and sputter-etching the sharpened edge to reduce the tip radius to less than 300 Angstroms and form a cutting edge. The resulting blades exhibit excellent shaving properties.

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