GB1342072A - Razor blades - Google Patents

Razor blades

Info

Publication number
GB1342072A
GB1342072A GB1342072DA GB1342072A GB 1342072 A GB1342072 A GB 1342072A GB 1342072D A GB1342072D A GB 1342072DA GB 1342072 A GB1342072 A GB 1342072A
Authority
GB
United Kingdom
Prior art keywords
coating
chromium
upper coating
polytetrafluoroethylene
april
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilkinson Sword Ltd
Original Assignee
Wilkinson Sword Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilkinson Sword Ltd filed Critical Wilkinson Sword Ltd
Publication of GB1342072A publication Critical patent/GB1342072A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0641—Nitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating

Abstract

1342072 Razor blades WILKINSON SWORD Ltd 19 April 1971 [17 April 1970] 9770/71 Heading C7F [Also in Division B4] A razor blade has on its cutting edge an upper coating of chromium nitride superposed on a lower layer of chromium. The chromium coating may be applied using an ion-plasma sputtering technique in an atmosphere of argon or helium, and the upper coating applied using an atmosphere containing nitrogen. After formation of the lower coating a quantity of air may be admitted to the apparatus to oxidize the surface of the chromium layer before application of the upper coating. A coating of a polymer e.g. polytetrafluoroethylene or a co-polymer of thio-carbonyl fluoride and polytetrafluoroethylene, may be provided on the upper coating. The coatings may be produced by vapour deposition or reactive evaporation instead of by sputtering. Reference has been directed by the Comptroller to Specification 1193067.
GB1342072D 1971-04-19 1971-04-19 Razor blades Expired GB1342072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB977071 1971-04-19

Publications (1)

Publication Number Publication Date
GB1342072A true GB1342072A (en) 1973-12-25

Family

ID=9878450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1342072D Expired GB1342072A (en) 1971-04-19 1971-04-19 Razor blades

Country Status (1)

Country Link
GB (1) GB1342072A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138026A (en) * 1983-03-31 1984-10-17 Leybold Heraeus Gmbh & Co Kg Solar controlled glazing
GB2140462A (en) * 1983-05-25 1984-11-28 Maschf Augsburg Nuernberg Ag Multi-layer coated metallic body
GB2162205A (en) * 1984-07-28 1986-01-29 Tadanobu Okubo Forming coloured coatings by ion plating
GB2163456A (en) * 1984-07-13 1986-02-26 Katsuhiro Okubo Method of forming a coloured hard coating
GB2170226A (en) * 1985-01-30 1986-07-30 Leybold Heraeus Gmbh & Co Kg Coating machine parts and tools with high hardness material
GB2226334A (en) * 1988-11-25 1990-06-27 Atomic Energy Authority Uk Multilayer coatings
WO2006027016A1 (en) * 2004-09-08 2006-03-16 Bic-Violex Sa Method for deposition of a layer on a razor blade edge and razor blade
WO2010033799A1 (en) * 2008-09-19 2010-03-25 Acme United Corporation Coatings for cutting implements

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138026A (en) * 1983-03-31 1984-10-17 Leybold Heraeus Gmbh & Co Kg Solar controlled glazing
GB2140462A (en) * 1983-05-25 1984-11-28 Maschf Augsburg Nuernberg Ag Multi-layer coated metallic body
GB2163456A (en) * 1984-07-13 1986-02-26 Katsuhiro Okubo Method of forming a coloured hard coating
GB2162205A (en) * 1984-07-28 1986-01-29 Tadanobu Okubo Forming coloured coatings by ion plating
GB2170226A (en) * 1985-01-30 1986-07-30 Leybold Heraeus Gmbh & Co Kg Coating machine parts and tools with high hardness material
GB2226334A (en) * 1988-11-25 1990-06-27 Atomic Energy Authority Uk Multilayer coatings
WO2006027016A1 (en) * 2004-09-08 2006-03-16 Bic-Violex Sa Method for deposition of a layer on a razor blade edge and razor blade
JP2008512567A (en) * 2004-09-08 2008-04-24 ビック・バイオレクス・エス・エー Method of depositing a predetermined layer on a razor blade tip and razor blade
US9180599B2 (en) 2004-09-08 2015-11-10 Bic-Violex S.A. Method of deposition of a layer on a razor blade edge and razor blade
WO2010033799A1 (en) * 2008-09-19 2010-03-25 Acme United Corporation Coatings for cutting implements
US9719173B2 (en) 2008-09-19 2017-08-01 Acme United Corporation Coating for cutting implements

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee