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公开(公告)号：US20230373121A1
公开(公告)日：2023-11-23
申请号：US18198966
申请日：2023-05-18
CPC分类号： B26B21/60 , B05D7/14 , B05D2320/00
摘要： A razor blade with a substrate having a tip portion. A hard coating layer is deposited on the substrate. A non-fluorinated organic material is deposited in one or more monolayers on an outer bonding surface of the hard coating. The hard coating layer has an aspect ratio of (a) to (b) of at least 1.5:1, wherein (a) is a first distance from a tip defined by the hard coating layer to the tip portion of the substrate, and (b) is a second distance from an outer surface of the hard coating layer to an underlying surface of the substrate.
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公开(公告)号：US11794366B2
公开(公告)日：2023-10-24
申请号：US17231561
申请日：2021-04-15
发明人： Kenneth James Skrobis , William Owen Jolley , John Lawrence Maziarz , Bin Shen , Ronald Richard Duff, Jr. , Joe David Lussier , Oliver Heinz Claus , Joseph Allan DePuydt , Jason Scott Slattery , John Joseph Nisby
IPC分类号： B26B21/60
CPC分类号： B26B21/60
摘要： A razor blade including: a substrate having a tip portion including a tip region, a blade body including a base, and first and second outer sides disposed opposite a split line of the substrate that converge at a tip; and first and second coatings disposed substantially on the first and second outer sides, respectively. Also provided is a method of coating the razor blade, including: applying a first coating to at least a portion of the first outer side; and applying a second coating to at least a portion of the second outer side. The first and second coatings each extend from the tip region toward the base and are substantially different, as compared to each other.
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公开(公告)号：US11230025B2
公开(公告)日：2022-01-25
申请号：US14940858
申请日：2015-11-13
申请人： The Gillette Company
摘要： A razor blade having a substrate with a cutting edge being defined by a sharpened tip is provided where the substrate is comprised of a molybdenum (Mo) content of about 1.6% to about 5% by weight of composition and thicknesses of 1.60-1.75 μm and 9.25-10.00 μm measured at a distance of 4 and 40 μm from the blade tip, respectively. This thickness ratio is between 0.165-0.185. The substrate thickness is about 2.70-3.00 μm at 8 μm from the blade tip, about 4.44-5.00 μm at 16 μm from the blade tip with a thickness ratio measured at 4 μm and 8 μm between 0.56-0.62, and a thickness ratio measured at 4 μm and 16 μm between 0.32-0.40. The edge shape may be defined by equation w=adn with “a” between 0.50-0.62 and “n” between 0.76-0.80. A semi-included angle less than 7° is measured at a distance of 40 μm or greater from the blade tip. This substrate will have substantially no cracks.
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公开(公告)号：US20170341250A1
公开(公告)日：2017-11-30
申请号：US15665639
申请日：2017-08-01
摘要： A razor blade having a substrate with a cutting edge being defined by a sharpened tip. The substrate has thicknesses of 1.60-1.75 micrometers and 9.25-10.00 micrometers measured at a distance of four and forty micrometers from the blade tip, respectively. A ratio of the thickness measured at four micrometers to the thickness measured at forty micrometers is between 0.165-0.185. The substrate thickness is about 2.70-3.00 micrometers at eight micrometers from the blade tip, about 4.44-5.00 micrometers at sixteen micrometers from the blade tip with a thickness ratio measured at four micrometers and eight micrometers between 0.56-0.62, and a thickness ratio measured at four micrometers and sixteen micrometers between 0.32-0.40. The blade edge shape is defined by equation w=adn where “a” is between 0.50-0.62 and “n” is between 0.76-0.80. An included angle of less than 7° is measured at a distance of forty micrometers or greater from the blade tip. A nitrided substrate may also be provided.
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公开(公告)号：US20160001456A1
公开(公告)日：2016-01-07
申请号：US14788878
申请日：2015-07-01
申请人： The Gillette Company
CPC分类号： B26B21/60 , B05D1/02 , B05D3/0254 , B05D3/0272 , B05D3/105 , B05D3/107 , B05D5/083 , B05D7/546 , B05D2350/63 , B05D2350/65
摘要： 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.
摘要翻译： 剃刀刀片切割刃本发明涉及剃须刃切割刃和产生边缘的方法，其具有改善的剃须性能，寿命和切割力。 传统的剃刀刀片由于外部涂层磨损和粘附损失而具有越来越多的切割力。 根据新颖工艺生产的刀刃在经受羊毛毡切割模拟时显示出显着较低的切削力，其与最初和在刀片寿命期间更舒适的剃须相关。 本发明用具有第一溶剂处理具有第一粘附多氟碳涂层的剃刀刀片边缘部分地去除多氟碳涂层，添加第二多氟碳涂层，用第二溶剂加热和处理刀片边缘，提供具有薄的， 均匀多氟碳涂层。 优选的溶剂包括具有高于溶剂中多氟碳烷的溶解温度的临界温度或沸点的全氟烷烃，全氟环烷烃和全氟芳族化合物。
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公开(公告)号：US20230373122A1
公开(公告)日：2023-11-23
申请号：US18198974
申请日：2023-05-18
IPC分类号： B26B21/60 , C09D183/04
CPC分类号： B26B21/60 , C09D183/04
摘要： A razor blade with an asymmetric substrate. A non-fluorinated organic coating extending along a first and second outer sides of the asymmetric substrate from a tip region toward a base of the substrate.
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公开(公告)号：US11766797B2
公开(公告)日：2023-09-26
申请号：US16729854
申请日：2019-12-30
发明人： Kenneth James Skrobis , Jeffrey Stuart Parker , Bin Shen , Matthew Robert Stone , John Joseph Nisby , Jason Scott Slattery , Yongqing Ju
摘要： A razor blade including a substrate with a coating joined to the substrate defining a coated blade. The coated blade including a cutting edge being defined by a blade tip having a tip radius of from 50 to 350 angstroms. The coated blade having a pair of first facets extending from the blade tip and a pair of second facets extending from the respective first facets, a facet angle from 90° to 135°, a facet width from 0.38 micrometers to 0.65 micrometers a wedge angle from 5° to 30°, and a thickness of between 0.8 and 1.5 micrometers measured at a distance of 1 micrometer from the blade tip.
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公开(公告)号：US11759965B2
公开(公告)日：2023-09-19
申请号：US17231593
申请日：2021-04-15
发明人： Kenneth James Skrobis , William Owen Jolley , John Lawrence Maziarz , Bin Shen , Ronald Richard Duff, Jr. , Joe David Lussier , Oliver Heinz Claus , Joseph Allan DePuydt , Jason Scott Slattery , John Joseph Nisby
CPC分类号： B26B21/60 , C23C28/044 , C23C28/347 , Y10T428/12771
摘要： A razor blade including: a substrate having a tip portion including a tip region, a blade body including a base, and first and second outer sides disposed opposite a split line of the substrate that converge at a tip; and first and second coatings disposed substantially on the first and second outer sides, respectively. Also provided is a method of coating the razor blade, including: applying a first coating to at least a portion of the first outer side; and applying a second coating to at least a portion of the second outer side. The first and second coatings each extend from the tip region toward the base and are substantially different, as compared to each other. One or both of the first and second coatings comprise a plurality of layers of material.
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公开(公告)号：US20210323183A1
公开(公告)日：2021-10-21
申请号：US17231593
申请日：2021-04-15
发明人： Kenneth James Skrobis , William Owen Jolley , John Lawrence Maziarz , Bin Shen , Ronald Richard Duff, JR. , Joe David Lussier , Oliver Heinz Claus , Joseph Allan DePuydt , Jason Scott Slattery , John Joseph Nisby
摘要： A razor blade including: a substrate having a tip portion including a tip region, a blade body including a base, and first and second outer sides disposed opposite a split line of the substrate that converge at a tip; and first and second coatings disposed substantially on the first and second outer sides, respectively. Also provided is a method of coating the razor blade, including: applying a first coating to at least a portion of the first outer side; and applying a second coating to at least a portion of the second outer side. The first and second coatings each extend from the tip region toward the base and are substantially different, as compared to each other. One or both of the first and second coatings comprise a plurality of layers of material.
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公开(公告)号：US20210323180A1
公开(公告)日：2021-10-21
申请号：US17231605
申请日：2021-04-15
IPC分类号： B26B21/40
摘要： A razor cartridge is provided comprising: a housing and a blade assembly mounted to the housing. The blade assembly may comprise at least one razor blade defined by a substrate comprising a first portion and a second portion. The first portion may comprise first and second outer surfaces. The second portion may comprise first and second sections separated by a split line. The first section may comprise a first facet and an end facet. The second section may comprise an end facet. The end facets of the first and second sections may converge at a tip to define a cutting edge. A shoulder may be positioned between the first facet and the end facet of the first section and define a skin-contacting surface.
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