WO1996013360A1 - Skin engaging member - Google Patents

Skin engaging member Download PDF

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Publication number
WO1996013360A1
WO1996013360A1 PCT/US1995/013713 US9513713W WO9613360A1 WO 1996013360 A1 WO1996013360 A1 WO 1996013360A1 US 9513713 W US9513713 W US 9513713W WO 9613360 A1 WO9613360 A1 WO 9613360A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaving
skin engaging
engaging member
skin
polystyrene
Prior art date
Application number
PCT/US1995/013713
Other languages
English (en)
French (fr)
Inventor
Mingchih Michael Tseng
Yuling Yin
Frank E. Badin
Thilivali T. Ndou
Brian A. Rogers
Lee K. Lim
Original Assignee
The Gillette Company
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
Priority claimed from US08/497,194 external-priority patent/US6298558B1/en
Priority to KR1019970702833A priority Critical patent/KR100483353B1/ko
Priority to CA 2203897 priority patent/CA2203897C/en
Priority to BR9509453A priority patent/BR9509453A/pt
Priority to NZ296324A priority patent/NZ296324A/en
Priority to EP95938870A priority patent/EP0790883B1/en
Application filed by The Gillette Company filed Critical The Gillette Company
Priority to DE69508784T priority patent/DE69508784C5/de
Priority to JP51469296A priority patent/JP4011108B2/ja
Priority to AU40092/95A priority patent/AU686480B2/en
Priority to PL95319976A priority patent/PL180436B1/pl
Priority to MX9703127A priority patent/MX9703127A/es
Publication of WO1996013360A1 publication Critical patent/WO1996013360A1/en

Links

Classifications

    • 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
    • B26B21/40—Details or accessories
    • B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
    • B26B21/443—Lubricating strips attached to the razor head

Definitions

  • This invention relates to an improved skin engaging member for use in razor blade cartridge assemblies and shaving systems of the wet shave type.
  • the present invention resides broadly in providing the skin engaging cap and/or guard surfaces with configurations which deliver a shaving aid as the razor is dragged across the skin.
  • Suitable shaving aids include lubricants, whisker softeners, razor cleaners, medicinal agents, cosmetic agents or combinations thereof.
  • This invention also relates to a novel method of manufacturing the skin engaging member of the present invention. In shaving systems of the wet shave type, factors such as the frictional drag of the razor across the skin, the force needed to sever hairs, and irritation of pre-existing skin damage can create a degree of shaving discomfort.
  • Shaving aids can be applied prior to, during, or after shaving.
  • a number of problems accompany the use of pre- and post-applied shaving aids.
  • Pre-applied-shaving aids can evaporate or can be carried away from the site PC17US95/13713
  • Post-applied-shaving aids are not present on the skin during shaving and thus their application may be too late to prevent an unwanted affect. Both pre-applied and post-applied shaving aids add additional steps to the shaving process.
  • a shaving aid e.g. lubricant, whisker softener, razor cleanser, medicinal agent, cosmetic agent or combination thereof
  • a shaving aid e.g. lubricant, whisker softener, razor cleanser, medicinal agent, cosmetic agent or combination thereof
  • a water- soluble shaving aid e.g. polyethylene oxide
  • non-water-soluble material e.g., a polystyrene polymer
  • the composite has been mounted on razor and shaving cartridge structures, adjacent the shaving edge or edges, of single or multiple blade shaving systems. Upon exposure to water, the water-soluble shaving aid leaches from the composite onto the skin. These composites tend to release large amounts of shaving aid in the first few shaves and dramatically less shaving aid in subsequent shaves. Furthermore, extruded composites with relatively large amounts of shaving agent material (up to 80% by weight) and relatively low amounts of water insoluble matrix material
  • the selection of the Polyox carrier is limited to a carrier that has a low melting or softening temperature and is at least partially miscible with polyetheneoxide.
  • the strip is made at a high temperature of approximately 180°C, additives such as fragrances and plasticizers are difficult to incorporate in the strips.
  • U.S. Patent No. 4,872,263 to Etheredge, III, issued October 10, 1989 discloses a lubricating device comprised of a porous matrix impregnated with a particular acid soap.
  • the impregnated matrix is covered with a water insoluble perforated sheet material in an effort to prevent the lubricant from eroding too quickly and to provide a smooth "massaging" effect on the skin.
  • These lubricating devices have not met with commercial success.
  • These lubricating devices are expensive to manufacture due to the additional assembly required of the sheet-over-matrix design. They also tend to swell and delaminate when affixed to the razor cartridge with glue.
  • the soft porous matrix does not lend itself to economical mechanical means of affixing the strip to the razor cartridge.
  • a two-component, controlled-release shaving device consisting of (a) a sheath layer made from thermoplastic resins with openings therein and (b) a core region containing internal shaving aids.
  • the device can be in the form of a strip, a razor guard, a razor cap, a razor platform or a razor housing made (1) by coextrusion or two-color (i.e. two component) molding, or (2) by extruding or molding the surface layer and shaving aids separately and then assembly later. Potentially, the device can maintain surface appearance, control-release the shaving aids, minimize the degradation of the shaving aids, and prevent the shaving aids from being trapped in a strip.
  • FIG. 1 is a perspective view of a razor unit in accordance with the invention.
  • FIG. 2 is a sectional view taken along the line 2-2 of FIG. 1;
  • FIG. 3 is a sectional view of another razor unit in accordance with the present invention.
  • FIG. 4 is an enlarged perspective view of a skin engaging member of the present invention
  • FIG. 5 is sectional view taken along the line 3-3 of FIG. 4;
  • FIG. 6 is a sectional view of the skin engaging member 42 found in FIG. 2;
  • FIG. 7 is a schematic cross-section diagram of an extrusion die suitable for manufacturing the skin engaging member of FIG. 3;
  • FIGS. 8-11 are enlarged perspective views of alternate skin engaging members according to the present invention.
  • FIG. 12 is a plot of shaving aid release versus the number of theoretical shaves, comparing a conventional lubricating strip with a lubricating strip according to the present invention.
  • the shaving unit 10 shown in FIGS. 1 and 2 includes base or platform member 12 molded of high impact polystyrene that includes integral coupling groove structure 14 for attachment to a razor handle and guard structure 16 that defines a transversely extending anterior skin engaging surface 18.
  • base or platform member 12 molded of high impact polystyrene that includes integral coupling groove structure 14 for attachment to a razor handle and guard structure 16 that defines a transversely extending anterior skin engaging surface 18.
  • On the upper surface of platform 12 are disposed steel leading blade 20 having a sharpened edge 22, steel following blade 24 having sharpened edge 26, and aluminum spacer member 28 that maintains blades 20 and 24 in spaced relation.
  • Cap member 30 is molded of high impact polystyrene and has body portion 32 that defines the posterior skin engaging surface 34 that extends transversely between forwardly projecting end walls 36 and has a front edge 38 that is disposed rearwardly of blade edge 26.
  • Integral rivet portions 40 extend downwardly from transversely extending body portion 32 and pass through holes in blades 20 and 24, spacer 28, and platform 12 to secure cap 30, blades 20, 24 and spacer 28 on platform 12.
  • Adhesively affixed to skin engaging surface 34 is skin engaging member 42.
  • the shaving unit 50 shown in FIG. 3 is of the type shown in Jacobson U.S. Patent
  • body 52 with front portion 54 and rear portion 56. Resiliently secured in body 52 are guard member 58, leading blade unit 60 and trailing blade unit 62.
  • a shaving aid composite in the form of elongated insert member 64 is frictionally locked in opening 66 of rear portion 56.
  • FIGS. 4-6 and 8-11 generally depict variations on the present invention.
  • the term "core" refers to an internal portion of a skin engaging member as examined at the cross-section.
  • the core typically runs throughout the skin engaging member along an axis.
  • the axis need not be the central axis.
  • the FIGS designate the core as 70.
  • Embodiments of the present invention have at least one core element.
  • the term "sheath" refers to an outer coating layer(s) over the core material 70.
  • the FIGS designate sheaths as 72.
  • the two-component, controlled-release shaving device of the present invention consists of an outer sheath which surrounds an internal core, wherein said core contains shaving aids such as water soluble polymers and additives.
  • the skin engaging surface 74 can be an insoluble layer with built-in openings, or a soft layer such as a commercial strip (polyethylene oxide/polystyrene) which will become porous during use.
  • the skin engaging member 64 has a skin engaging surface 74 and an elongated insert element 76.
  • the insert member 76 is designed to frictionally lock in an opening as shown in FIG. 3.
  • the skin engaging member further comprises a shaving aid- containing core material 70 which is surrounded by a sheath material.
  • the sheath material includes at least one hole to release additive to the skin.
  • the sheath includes from about 3 to about 30 holes, most preferably 10-15 holes, evenly distributed along the skin engaging surface 74. Hole diameters vary depending on the particular shaving aid selected: however, we have observed best results with hole diameters of from about 0.020 to about 0.040 inches. Preferably, the hole diameter is about 0.035 inches.
  • the holes need not be circular in shape and that any shape hole would suffice. See for example FIGS. 7-11.
  • the pore area along the skin engaging surface is important. Preferably, the pore area is from about 0.0005 to about 0.0250 square inches. When a high level of polyethylene oxide lubricant is utilized in the core, a pore area of about
  • Shaving aid materials are selected from the group consisting of polyethylene oxide, polyvinyl pyrrolideone, polyacrylamide, hydroxypropyl cellulose, polyvinyl imidazoline, polyethylene glycol, poly vinyl alcohol, polyhydroxyethylmethacrylate, silicone copolymers, sucrose stearate, vitamin E, soaps, surfactants, panthenol, aloe, plasticizers, such as polyethylene glycol; beard softeners; additional lubricants, such as silicone oil, Teflon ® polytetrafluoroethylene powders (manufactured by DuPont) , and waxes; essential oils such as menthol, camphor, eugenol, eucalyptol, safrol and methyl salicylate; tackifiers such as Hercules Regalrez 1094 and 1126; non-volatile cooling agents, inclusion complexes of skin-soothing agents with cyclodextrins; fragrances; antipruriti
  • said shaving aid is a water soluble or water iscible material; however, non-water soluble additives can also be incorporated as long as they can be carried out with a water soluble core component.
  • the preferred shaving aid will comprise a lubricious water-soluble polymer.
  • Such water-soluble polymer will preferably comprise at least 50%, more preferably at least 60%, by weight of the core material.
  • the more preferred water-soluble polymers are the polyethylene oxides generally known as POLYOX (available from Union Carbide Corporation) or ALKOX (available from Meisei Chemical Works,
  • polyethylene oxides will preferably have molecular weights of about 100,000 to 6 million, most preferably about 300,000 to 5 million.
  • the most preferred polyethylene oxide comprises a blend of about 40 to 80% of polyethylene oxide having an average molecular weight of about 5 million (e.g. POLYOX COAGULANT) and about 60 to 20% of polyethylene oxide having an average molecular weight of about 300,000 (e.g. POLYOX WSR-N-750) .
  • the polyethylene oxide blend may also advantageously contain up to about 10% by weight of a low molecular weight (i.e. MW ⁇ 10,000) polyethylene glycol such as PEG-100.
  • the shaving aid may also advantageous ⁇ ly comprise a non-volatile cooling agent or an inclusion complex of a skin-soothing agent with a cyclodextrin, preferably in amounts up to about 25%, most preferably 10 to 20%, by weight of the core material.
  • non-volatile cooling agent an agent which has a physiological cooling effect on the skin and which is appreciably less volatile than menthol.
  • the non ⁇ volatile cooling agent will be one which when subjected to thermogravimetric analysis (e.g. using a 951 Thermogravimetric Analyzer from
  • Dupont with a 20°C. temperature rise per minute will retain at least 50% of its initial weight at a temperature of 160°C, more preferably at least 80% of its initial weight at a temperature of 160°C, and most preferably at least 50% of its initial weight at a temperature of 175°C.
  • Suitable cooling agents which can be utilized include non-volatile menthol analogs such as menthyl lactate, menthyl ethoxyacetate, xnenthone glycerinacetal, 3-/-menthoxypropane-l,2- diol, ethyl /-menthyl carbonate, (IS,3S,4R) -p- menth-8-en-3-ol, menthyl pyrrolidone carboxylate, N-substituted-p-menthane-3- carboxamides (as described in U.S. 4,136,163, which is incorporated herein by reference) including, for example, N-ethyl-p-menthane-3- carboxamide, acyclic carboxamides of the formula
  • R' and R when taken separately, are each hydrogen, ⁇ -Cg alkyl or C 1 -C 8 hydroxyalkyl and provide a total of no more than 8 carbon atoms, with the proviso that when R' is hydrogen R" may also be alkylcarboxyalkyl of up to 6 carbon atoms; R' and R", when taken together, represent an alkylene group of up to 6 carbon atoms thereby forming a nitrogen heterocycle, the alkylene chain being optionally interrupted by oxygen; R 1 is hydrogen or C- ⁇ -Cr j alkyl; and R 2 and J are each C ⁇ -Cg alkyl (such acyclic carboxamides being described in U.S.
  • Suitable skin-soothing agents which can be utilized in the cyclodextrin inclusion complex include menthol, camphor, eugenol, eucalyptol, safrol, methyl salicylate, and the aforedescribed menthol analogs.
  • any suitable cyclodextrin may be utilized to form the inclusion complex including alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin and modified cyclodextrins such as hydroxypropyl- beta-cyclodextrin, methyl-beta-cyclodextrin, and acetyl-beta-cyclodextrin.
  • the preferred cyclodextrins are beta-cyclodextrin and gamma- cyclodextrin.
  • the core material may also advantageously comprise up to about 10%, preferably about 2 to 7%, by weight of a displacing agent which displaces the skin- soothing agent from the inclusion complex upon contact with water, thereby enhancing the release of the skin-soothing agent from the core material during use.
  • the displacing agent is a material which is capable of forming a more stable complex with the cyclodextrin than the complex formed with the skin-soothing agent and, thus, displaces the skin-soothing agent from the complex when the shaving aid is contacted with water.
  • Suitable displacing agents include surfactants, benzoic acids, and certain amines (e.g. urea) .
  • cyclodextrin inclusion complexes and displacing agents may be found in the following copending U.S. patent applications, the disclosures of which are incorporated herein by reference: Docket No. 7995 entitled Shaving Aid Composite With An Inclusion Complex Of A Skin-Soothing Agent And A Cyclodextrin, filed on June 30, 1995; and Docket No. 7996 entitled Shaving Aid Composite With A Non-Volatile Cooling Agent, filed on June 30, 1995.
  • the core material includes from about
  • Suitable water-insoluble matrix materials include, for example, nylon, ethylene vinyl acetate (EVA) , polyethylene, polypropylene, polyurethane, polystyrene, polystyrene-butadiene, polyacetal, polyphenol/polystyrene blends (such as NOREL brand polymer), and combinations thereof.
  • EVA ethylene vinyl acetate
  • the sheath material must have sufficient mechanical strength and rigidity to provide adequate mechanical strength to the entire skin engaging member, both as initially produced and after a significant amount of water insoluble material has been leached out of the skin engaging member.
  • the sheath region will comprise at least 35%, most preferably at least 40%, by weight of a water- insoluble polymer, particularly a thermoplastic resin.
  • Sheath material suitable for use in the present invention include polystyrene, high impact polystyrene (polystyrene-butadiene) , polypropylene, filled polypropylene, polyethylene, nylon, and blends such as 70% nylon/30% polyethylene oxide, 60% polystyrene/40% polyethylene oxide.
  • the preferred sheath materials are high impact polystyrene, polystyrene, ethylene vinyl acetate (EVA) and combinations thereof.
  • the sheath region may also comprise some water-soluble polymer, such as polyethylene oxide, but generally no more than about 65% by weight, preferably less than 60% by weight, in order to maintain the structural integrity of the sheath region.
  • the sheath material can include additives such as lubricants or plasticizers, fillers such as CaC0 3 , and colorants such as ⁇ io 2 .
  • a wear indicating effect is produced when the sheath material and the core material are made of disparately colored materials (e.g.
  • the core material leaches out of the skin engaging member through use. With sufficient use, a colored region within the core leaches out. By examining the release holes along the skin engaging surface, the user is provided with an indication that the shaving unit and/or skin engaging surface have reached their effective life.
  • the core material consists of polyethylene oxide/polystyrene mixture which is white in color and the sheath consists of nylon and/or styrene which has been colored with Indigotine, FD&C #2 dye.
  • the skin engaging members may be affixed by adhesive such as Loctite Super Bonder 499, by mechanical locking mechanism, by thermal welds or by a combination thereof.
  • the device can be a strip made by two- color (two-component) molding or coextruding, or by extruding or molding the surface layer and the shaving aids separately and then assembly later. The device can then be glued or snapped onto a razor cartridge.
  • the device can also be a razor cap, platform, or housing made by two- color molding. For example, 1) a surface with holes can be made by molding or two-color molding, and 2) a surface with channels can be made by molding. Extrusion and coextrusion processes are preferred as they require less capital and skilled labor. When the strip is coextruded, holes must be made in the skin engaging surface. The holes are placed in the sheath by any of the following processes: drilling, laser, water jet, embossing or puncturing.
  • Shaving aids and the surface layer should be processed at different barrel temperatures to minimize material degradation.
  • a twin-screw extruder should be considered as an alternative to the single-screw extruder used in the extrusion and coextrusion processes.
  • Optimal sheath materials have a hard to moderately hard surface.
  • the preferred skin engaging member is produced by a coextrusion process whereby a sheath is present on at least the skin engaging surface 74.
  • the nature and relative portions of the sheath and core polymeric materials being such that the skin engaging member has adequate mechanical strength, both as initially produced and after a significant amount of water soluble material has been leached out, the quantity of the water-soluble material being sufficient to provide effective shaving assistance, such as lubrication, for the entire expected life of the blade or blades.
  • the function of the sheath material is not only to provide additional rigidity but to meter the shaving aid.
  • conventional skin engaging members such as those described in U.S. Pat. Nos.
  • Figure 7 is a schematic cross section diagram down the length of an extruder suitable for manufacturing the skin engaging member of the present invention.
  • Core material is fed into the intrusion die 51 by an extrusion screw, hot melt or other suitable means.
  • the tight core orifice 53 encounters the sheath material wherein the core becomes encapsulated by the sheath material when viewed in a transverse cross section to the flow of the die material.
  • the encapsulated core then proceeds to the die outlet 55 wherein the continuous skin engaging members can be cured and/or drawn down to provide the appropriate dimensions.
  • coextrusion technology see Levi, Plastics Extrusion Technology Handbook. Industrial Press Inc., pages 168-188 (1981), incorporated herein by reference.
  • the strand is sent for further processing where it is typically drawn down to the correct size and cut to length suitable for implant into the body of a razor blade cartridge.
  • This cutting can be achieved by knife edge cutting, lasers or water jet.
  • the skin engaging surfaces of the present invention typically are rectangular in shape with a width of from about 0.05 inches to about 0.1 inches and a length of about 1.2 inches.
  • the two-component device allows shaving aids to be processed at a relatively low temperature to reduce material degradation.
  • polyethylene oxide can be processed at a temperature lower than that required by conventional strips, i.e. polyethylene oxide in insoluble matrix lubricating strips.
  • Shaving aids can be made from water soluble polymers such as polyethylene oxide, polyethylene glycol, and polyvinyl alcohol, etc. Additives such as perfume, moisturizers, Vitamin E, and plasticizers etc. can easily be added to the shaving aids. Additives can also be water- insoluble materials as long as they can be carried out through the surface openings.
  • the shaving aids can be molded or extruded, although the extrusion process is preferred.
  • Leach rates of the shaving aids depend on the thickness of the surface, the number and the shape of the openings, and the surface structures (porous or non-porous) .
  • the surface layer can also be made to be removable so that the shaving aids can be added to the device during use.
  • Applicant considers equivalent embodiments to be part of the present invention. For example, non-rectangular skin engaging surface areas may be utilized (such as ovals) and non-flat surface patterns could be utilized. These and other equivalent embodiments are also contemplated by the present invention.
  • the present invention and the manner of making and using the same should be evident from the following examples. EXAMPLES 1-8
  • Shaving aids such as those found in Table 1 are co-extruded into a device with a cross-section as in Figure 7 at approximately the temperatures found in the table. Typical finished width is 1/8 of an inch after a draw down of less than 2%. These devices require no additional assembly.
  • the coextrusion line includes two 3/4" HBI Systems 90 extruders (mfg. by Haake) , and a coextrusion die.
  • the surface layer of the coextruded device was made from a mixture at barrel temperature as shown and the shaving aid was made from the material shown.
  • the hole pattern is cut with a 0.030 inch diameter drill in the pattern of FIG 4.
  • the finished strips are cut 1.25 inches long with a knife edge cutter resulting in 13 holes per strip.
  • a conventional lubricating strip similar in external dimensions to FIGS. 4-5, was prepared according to the general method described in US Pat. No. 5,113,585 to Rogers.
  • the formulation for the strip is as follows:
  • a lubricating strip according to the present invention was prepared according to the M general method described in Examples 1-5.
  • the formulation for the strip is as follows: '
  • Example 10 therapeutic levels of lubricant continue to be delivered in a near zero- order release profile after the fourth shave. However, very low levels are provided in ⁇ Example 9 (control) . >

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cosmetics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Finger-Pressure Massage (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Seal Device For Vehicle (AREA)
  • Massaging Devices (AREA)
PCT/US1995/013713 1994-10-31 1995-10-24 Skin engaging member WO1996013360A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
MX9703127A MX9703127A (es) 1994-10-31 1995-10-24 Elemento que se pone en contacto con la piel.
CA 2203897 CA2203897C (en) 1994-10-31 1995-10-24 Skin engaging member
BR9509453A BR9509453A (pt) 1994-10-31 1995-10-24 Peça de contato com a pele e sistema de barbear do tipo barbear a úmido
NZ296324A NZ296324A (en) 1994-10-31 1995-10-24 Skin engaging member for razor blade cartridge assembly containing shaving aid
EP95938870A EP0790883B1 (en) 1994-10-31 1995-10-24 Skin engaging member
KR1019970702833A KR100483353B1 (ko) 1994-10-31 1995-10-24 피부접촉부재및피부접촉부재를포함하는습식면도시스템
DE69508784T DE69508784C5 (de) 1994-10-31 1995-10-24 Hautkontaktglied
JP51469296A JP4011108B2 (ja) 1994-10-31 1995-10-24 皮膚接触部材
AU40092/95A AU686480B2 (en) 1994-10-31 1995-10-24 Skin engaging member
PL95319976A PL180436B1 (pl) 1994-10-31 1995-10-24 Element kontaktujacy sie ze skóra oraz wkladka do golenia na mokro PL PL PL PL PL

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33229394A 1994-10-31 1994-10-31
US332,293 1994-10-31
US08/497,194 US6298558B1 (en) 1994-10-31 1995-06-30 Skin engaging member
US497,194 1995-06-30

Publications (1)

Publication Number Publication Date
WO1996013360A1 true WO1996013360A1 (en) 1996-05-09

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ID=26988157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/013713 WO1996013360A1 (en) 1994-10-31 1995-10-24 Skin engaging member

Country Status (16)

Country Link
EP (1) EP0790883B1 (xx)
JP (1) JP4011108B2 (xx)
CN (1) CN1104312C (xx)
AT (1) ATE178253T1 (xx)
AU (1) AU686480B2 (xx)
BR (1) BR9509453A (xx)
DE (1) DE69508784C5 (xx)
EG (1) EG20594A (xx)
ES (1) ES2132745T3 (xx)
IL (1) IL115690A (xx)
MA (1) MA23705A1 (xx)
MX (1) MX9703127A (xx)
NZ (1) NZ296324A (xx)
PL (1) PL180436B1 (xx)
TR (1) TR199501342A2 (xx)
WO (1) WO1996013360A1 (xx)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
US5915791A (en) * 1996-03-27 1999-06-29 The Gillette Company Shaving system with improved guard structure
US6185822B1 (en) 1997-02-27 2001-02-13 The Gillette Company Shaving system
WO2001060573A1 (en) 2000-02-18 2001-08-23 The Gillette Company Shaving aid strip for razor cartridge
WO2001060572A1 (en) 2000-02-18 2001-08-23 The Gillette Company Shaving aid strip for razor cartridge
US6298559B1 (en) * 2000-02-18 2001-10-09 The Gillette Company Shaving aid strip for razor cartridge
US7727516B2 (en) 2006-02-28 2010-06-01 The Procter & Gamble Company Reduction of hair growth
US20110099815A1 (en) * 2009-10-21 2011-05-05 Eveready Battery Company, Inc. Lubrication Box For A Wet Shaving Implement
WO2013025857A1 (en) * 2011-08-16 2013-02-21 The Gillette Company Skin engaging member comprising an anti-irritation agent
WO2020148283A1 (en) * 2019-01-15 2020-07-23 Bic -Violex S.A. Skin engaging member for razor cartridge
WO2020174093A1 (en) * 2019-02-28 2020-09-03 Bic -Violex S.A. Skin engaging member for razor cartridge comprising skin active ingredient

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
FR2793435B1 (fr) * 1999-05-12 2001-08-03 Bic Rech Et Dev Tete de rasoir comportant un element anti-friction solidaire d'une semelle
US6868610B2 (en) * 2001-11-15 2005-03-22 The Gillette Company Shaving razors and razor cartridges
DE10344564A1 (de) * 2003-09-25 2005-04-28 Braun Gmbh Trockenrasierapparat mit Feststoffapplikator
US7581318B2 (en) * 2006-08-03 2009-09-01 Eveready Battery Company, Inc. Skin engaging device for a safety razor
US20110126413A1 (en) * 2009-12-02 2011-06-02 Andrew Anthony Szczepanowski Razor cartridge components with indicia
US9889571B2 (en) * 2015-01-08 2018-02-13 The Gillette Company Llc Razor cartridge with a lubrication member having a printed support structure
CN110181562A (zh) * 2019-06-26 2019-08-30 温州市日电电器有限公司 一种剃须刀刀头弹片结构
CN110181564B (zh) * 2019-06-26 2021-09-28 温州市日电电器有限公司 一种剃须刀头
CN112123383B (zh) * 2020-09-15 2021-05-14 江苏好客日用品科技有限公司 一种剃须刀头、组装剃须刀头的设备及其组装方法

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US5056222A (en) * 1990-09-28 1991-10-15 The Gillette Company Shaving system
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US5915791A (en) * 1996-03-27 1999-06-29 The Gillette Company Shaving system with improved guard structure
US6185822B1 (en) 1997-02-27 2001-02-13 The Gillette Company Shaving system
US6442839B1 (en) 1997-02-27 2002-09-03 The Gillette Company Shaving system
WO2001060572A1 (en) 2000-02-18 2001-08-23 The Gillette Company Shaving aid strip for razor cartridge
US6298559B1 (en) * 2000-02-18 2001-10-09 The Gillette Company Shaving aid strip for razor cartridge
US6301785B1 (en) 2000-02-18 2001-10-16 The Gillette Company Shaving aid strip for razor cartridge
WO2001060573A1 (en) 2000-02-18 2001-08-23 The Gillette Company Shaving aid strip for razor cartridge
US7727516B2 (en) 2006-02-28 2010-06-01 The Procter & Gamble Company Reduction of hair growth
US20110099815A1 (en) * 2009-10-21 2011-05-05 Eveready Battery Company, Inc. Lubrication Box For A Wet Shaving Implement
US9604374B2 (en) * 2009-10-21 2017-03-28 Edgewell Personal Care Brands, Llc Method of making a lubrication box for a wet shaving implement
WO2013025857A1 (en) * 2011-08-16 2013-02-21 The Gillette Company Skin engaging member comprising an anti-irritation agent
WO2020148283A1 (en) * 2019-01-15 2020-07-23 Bic -Violex S.A. Skin engaging member for razor cartridge
WO2020174093A1 (en) * 2019-02-28 2020-09-03 Bic -Violex S.A. Skin engaging member for razor cartridge comprising skin active ingredient

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EP0790883B1 (en) 1999-03-31
CN1104312C (zh) 2003-04-02
DE69508784T2 (de) 1999-09-16
ES2132745T3 (es) 1999-08-16
IL115690A0 (en) 1996-01-19
AU686480B2 (en) 1998-02-05
PL180436B1 (pl) 2001-02-28
MA23705A1 (fr) 1996-07-01
AU4009295A (en) 1996-05-23
TR199501342A2 (tr) 1996-06-21
BR9509453A (pt) 1998-01-06
EP0790883A1 (en) 1997-08-27
CN1167457A (zh) 1997-12-10
MX9703127A (es) 1997-06-28
DE69508784C5 (de) 2012-01-26
NZ296324A (en) 1998-09-24
DE69508784D1 (de) 1999-05-06
JPH10507950A (ja) 1998-08-04
PL319976A1 (en) 1997-09-01
IL115690A (en) 1999-11-30
JP4011108B2 (ja) 2007-11-21
EG20594A (en) 1999-09-30
ATE178253T1 (de) 1999-04-15

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