Razor blade technology

Razor blade technology

A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of a chromium containing material on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANDREW ZHUK, COLIN JOHN CLIPSTONE, STEVEN HAHN, NEVILLE SONNENBERG, CHARLES WHITE
Format: Patent
Sprache:eng
Schlagworte:
CUTTING
HAND CUTTING TOOLS
HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SEVERING
TRANSPORTING
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Beschreibung
Zusammenfassung:A razor blade including a substrate with a cutting edge defined by a sharpened tip and adjacent facets, a layer of hard coating on the cutting edge, an overcoat layer of a chromium containing material on the layer of hard carbon coating, and an outer layer of polytetrafluoroethylene coating over the overcoat layer. Also disclosed is a method of making a razor blade including providing a substrate with a cutting edge defined by a sharpened tip and adjacent facets, and applying an aqueous solution including polytetrafluoroethylene coating over the sharpened tip to result in an outer layer, the polytetrafluoroethylene having a molecular weight of about 45,000.