Title:
カミソリ刃の刃先を処理する方法
Document Type and Number:
Japanese Patent JP6480478
Kind Code:
B2
Abstract:
The present invention relates to razor blade cutting edges and methods of producing edges exhibiting improved shave performance longevity and lower cutting forces. Conventional razor blades have increasing cutting forces with use due to the outer coating wear and adhesion loss. Blade edges produced according to the novel process exhibit significantly lower cutting forces when subjected to wool felt cutting shaving simulation, which correlates to more comfortable shaves initially and over the life of the blades. The present invention treats razor blade edges having a first adherent polyfluorocarbon coating with a first solvent to partially remove the polyfluorocarbon coating, adds a second polyfluorocarbon coating, heats, and treats the blade edge with a second solvent providing a final blade edge having a thin, uniform polyfluorocarbon coating. Preferred solvents include perfluoroalkanes, perfluorocycloalkanes, and perfluoroaromatic compounds having a critical temperature or boiling point above the dissolution temperature for the polyfluorocarbon in the solvent.
Inventors:
Ronald Richard Duff Jr.
John Joseph Nisby
Kenneth james scrubis
Joseph Alain Depuis
John Joseph Nisby
Kenneth james scrubis
Joseph Alain Depuis
Application Number:
JP2016575050A
Publication Date:
March 13, 2019
Filing Date:
July 01, 2015
Export Citation:
Assignee:
THE GILLETTE COMPANY LLC
International Classes:
B05D3/10; B05D7/24; B05D7/00; B26B21/60; C09D127/18
Domestic Patent References:
| JP2001524164A | ||||
| JP2012016498A | ||||
| JP48005689B1 |
Foreign References:
| US4012551 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office