EP0790883B1 - Element venant en contact avec la peau - Google Patents

Element venant en contact avec la peau Download PDF

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Publication number
EP0790883B1
EP0790883B1 EP95938870A EP95938870A EP0790883B1 EP 0790883 B1 EP0790883 B1 EP 0790883B1 EP 95938870 A EP95938870 A EP 95938870A EP 95938870 A EP95938870 A EP 95938870A EP 0790883 B1 EP0790883 B1 EP 0790883B1
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EP
European Patent Office
Prior art keywords
skin engaging
engaging member
sheath
shaving
core
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 - Lifetime
Application number
EP95938870A
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German (de)
English (en)
Other versions
EP0790883A1 (fr
Inventor
Mingchih Michael Tseng
Yuling Yin
Frank E. Badin
Thilivali T. Ndou
Brian A. Rogers
Lee K. Lim
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Gillette Co LLC
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Gillette Co LLC
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Publication date
Priority claimed from US08/497,194 external-priority patent/US6298558B1/en
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Publication of EP0790883A1 publication Critical patent/EP0790883A1/fr
Application granted granted Critical
Publication of EP0790883B1 publication Critical patent/EP0790883B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.
  • 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 of application by repeated strokes of the razor.
  • 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
  • water insoluble matrix 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.
  • 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.
  • extruded composites with relatively large amounts of shaving aid (up to 80% by weight) and relatively low amounts of water insoluble matrix material (as little as 20% by weight) are relatively weak and have a tendency towards mechanical failure, both in assembly and in use. Increased mechanical strength can be obtained with increased amounts of the insoluble matrix material. However, such increase reduces the releasability of the shaving aid material.
  • 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 skin engaging member consisting of (a) a sheath made from thermoplastic resins with openings therein and (b) a core containing shaving aids.
  • the skin engaging member 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.
  • the device can maintain surface appearrance, control-release the shaving aid, minimize the degradation of the shaving aid, and prevent the shaving aid from being trapped in the skin engaging member.
  • the addition of low-melt additives to the shaving aid becomes feasible and the compatibility between the shaving aid and the shaving aid carrier, such as polystyrene in the lubricating strip composite, becomes less critical.
  • 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 4,586,255 and includes 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.
  • the term "sheath” refers to an outer coating layer(s) over the core 70.
  • the FIGS. designate the sheath as 72.
  • the two-component, controlled-release skin engaging member of the present invention consists of an outer sheath which surrounds an internal core, wherein said core contains shaving aid 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.
  • an elongated skin engaging member 64 has a skin engaging surface 74 and an elongated insert member 76.
  • the insert member 76 is designed to frictionally lock in an opening 66 as shown in FIG. 3.
  • the skin engaging member further comprises a shaving aid-containing core 70 which is surrounded by a sheath 72.
  • the sheath includes at least one opening to release shaving aid 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.
  • the hole diameter is about 0.035 inches. It should be noted that the holes need not be circular in shape and that any shape hole would suffice. See for example FIGS. 7-11.
  • the hole area along the skin engaging surface is important. Preferably, the hole 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 hole area of about 0.0125 square inches is preferred. Many shaving aids tend to swell upon contact with water. By binding these swelling shaving aids within an insoluble matrix material, the degree of swell can be modified to prevent aesthetically unpleasant results. The most preferred hole pattern is found in FIGS. 4-5.
  • the shaving aid is selected from the group consisting of polyethylene oxide, polyvinyl pyrrolidone, 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; antipruritic/counter
  • said shaving aid is a water soluble or water miscible 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.
  • 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, Kyoto, Japan). These 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 advantageously 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.
  • 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, menthone glycerinacetal, 3- l -menthoxypropane-1,2-diol, ethyl l -menthyl carbonate, (1S,3S,4R)-p-menth-8-en-3-ol, menthyl pyrrolidone carboxylate, N-substituted-p-menthane-3-carboxamides (as described in U.S.
  • non-volatile menthol analogs such as menthyl lactate, menthyl ethoxyacetate, menthone glycerinacetal, 3- l -menthoxypropane-1,2-diol, ethyl l -menthyl carbonate, (1S,3S,4R)-p-menth-8-en-3-ol, menthyl
  • R' and R'' when taken separately, are each hydrogen, C 1 -C 5 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 1 -C 5 alkyl; and R 2 and R 3 are each C 1 -C 5 alkyl (such acyclic carboxamides being described in U.S.
  • 4,153,679 including, for example, N,2,3-trimethyl-2-isopropylbutanamide, and ketal coolants (as described in WO 93/23005) including, for example, l -menthon-/ d -isomenthon glycerin ketal.
  • 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 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).
  • the core includes from about 0% to about 50% by weight, preferably from 0% to about 20%, of a water-insoluble matrix material and from about 50% to about 100% by weight, preferably from about 80% to about 100%, of the shaving aid.
  • Suitable water-insoluble polymers for the matrix 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.
  • the sheath 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 soluble material has been leached out of the skin engaging member.
  • the sheath will comprise at least 35%, most preferably at least 40%, by weight of a water-insoluble polymer, particularly a thermoplastic resin.
  • Thermoplastic resins suitable for use in the sheath include polystyrene, high impact polystyrene (polystyrene-butadiene), polypropylene, filled polypropylene, polyethylene, nylon, ethylene vinyl acetate and blends such as 70% nylon/30% polyethylene oxide, 60% polystyrene/40% polyethylene oxide.
  • the preferred resins are high impact polystyrene, polystyrene, ethylene vinyl acetate (EVA) and combinations thereof.
  • the sheath 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.
  • the sheath can include additives such as lubricants or plasticizers, fillers such as CaCO 3 , and colorants such as TiO 2 .
  • a wear indicating effect is produced when the sheath and the core are made of disparately colored materials (e.g. white colored sheath and blue colored core).
  • the core leaches out of the skin engaging member through use. With sufficient use, a colored region within the core leaches out.
  • the user is provided with an indication that the shaving unit and/or skin engaging surface have reached their effective life.
  • the core consists of polyethylene oxide/polystyrene blend which is colored with Indigotine, FD&C #2 dye and the sheath consists of nylon and/or polystyrene which has been colored white.
  • 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 skin engaging member 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 skin engaging member can then be glued or snapped onto a razor cartridge.
  • the skin engaging member can also be a razor cap, platform, or housing made by two-color molding.
  • 1) a surface with holes can be made by molding or two-color molding
  • 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 skin engaging member 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.
  • the core and the sheath 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.
  • the sheath will 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 are 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 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 a two-component extruder (or coextruder) suitable for manufacturing the skin engaging member of the present invention.
  • Core material 80 is fed into the intrusion die 81 by an extrusion screw, hot melt or other suitable means.
  • the tight core orifice 83 encounters the sheath material 86, which has been fed into sheath inlet port 84, 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 85 wherein the continuous skin engaging members can be cured and/or drawn down to provide the appropriate dimensions.
  • 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 extruder allows the core material 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 aid. Additives can also be water-insoluble materials as long as they can be carried out through the surface openings.
  • the core containing shaving aid 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.
  • Core containing shaving aid 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 sheath or outer layer of the coextruded skin engaging member was made from a mixture at barrel temperature as shown and the core containing 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.

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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)

Claims (16)

  1. Elément s'engageant sur la peau (64) pour une utilisation dans un système de rasage humide comprenant :
    une gaine allongée (72) constituée d'un polymère insoluble dans l'eau, ladite gaine (72) présentant une surface s'engageant sur la peau (74) s'étendant le long d'une surface externe de celle-ci, et
    un noyau (70) s'étendant axialement d'un bout à l'autre de ladite gaine (72), ledit noyau (70) contenant un auxiliaire de rasage qui comprend un polymère soluble dans l'eau, dans lequel lesdits gaine (72) et noyau (70) sont extrudés ou moulés et ladite gaine (72) présente au moins une ouverture dans ladite surface s'engageant sur la peau (74) à travers laquelle ledit auxiliaire de rasage est libéré pendant le rasage.
  2. Elément s'engageant sur la peau selon la revendication 1, dans lequel ladite gaine (72) comprend au moins 35% de polymère insoluble dans l'eau et ledit noyau comprend au moins 50% de polymère soluble dans l'eau.
  3. Elément s'engageant sur la peau selon la revendication 2, dans lequel ledit polymère insoluble dans l'eau comprend du polystyrène, du polystyrène de résistance élevée au choc, du polypropylène du polypropylène chargé, du polyéthylène, du Nylon ou du vinylacétate d'éthylène
  4. Elément s'engageant sur la peau selon la revendication 3, dans lequel ledit noyau (70) comprend de plus d'environ 0 à 20% de matrice insoluble dans l'eau.
  5. Elément s'engageant sur la peau selon la revendication 4, dans lequel ladite matrice insoluble dans l'eau comprend du Nylon, du vinylacétate d'éthylène, du polyéthyléne, du polypropylène du polyuréthane du polystyrène, du polystyrène-butadiène, du polyacétal ou des mélanges de polyphénol/polystyrène.
  6. Elément s'engageant sur la peau selon la revendication 5, dans lequel ladite gaine (72) comprend de plus moins de 60% de polymère soluble dans l'eau.
  7. Elément s'engageant sur la peau selon la revendication 1, 2, 4, 5 ou 6, dans lequel ledit polymère soluble dans l'eau comprend du poly(oxyde d'éthyléne)
  8. Elément s'engageant sur la peau selon la revendication 3, dans lequel ledit polymère soluble dans l'eau comprend du poly(oxyde d'éthylène).
  9. Elément s'engageant sur la peau selon la revendication 3 ou 8, dans lequel ladite gaine (72) et ledit noyau (70) sont colorés différemment.
  10. Elément s'engageant sur la peau selon la revendication 8, dans lequel ladite au moins une ouverture comprend de nombreuses ouvertures avec une surface d'environ 0,0005 à environ 0,0250 pouces carrés.
  11. Elément s'engageant sur la peau selon la revendication 8, dans lequel ladite au moins une ouverture comprend d'environ 3 à environ 30 trous présentant un diamètre d'environ 0,020 à environ 0,040 pouces.
  12. Elément s'engageant sur la peau selon la revendication 8, dans lequel ledit noyau (70) comprend jusqu'à 25% en poids d'un agent rafraíchissant non volatile ou d'un complexe d'inclusion d'un agent apaisant la peau avec une cyclodextrine.
  13. Elément s'engageant sur la peau selon la revendication 12, dans lequel ledit agent rafraíchissant non volatile est choisi parmi le lactate de menthyle, l'éthoxy-acétate de menthyle, le menthoneglycérinacétal, le 3-l-menthoxypropane-1,2-diol, le l-menthylcarbonate d'éthyle, le (1S, 3S, 4R)-p-menth-8-en-3-ol, le carboxylate de mentylpyrrolidone, le N-éthyl-p-menthane-3-carboxamide et le N,2,3-triméthyl-2-isopropylbutanamide et dans lequel ledit agent apaisant la peau est choisi parmi le menthol, le camphre, l'eugénol, l'eucalyptol, le safrol, le salicylate de méthyle et les agents rafraíchissants non volatiles cités précédemment.
  14. Elément s'engageant sur la peau selon la revendication 1, dans lequel ledit auxiliaire de rasage comprend du poly(oxyde d'éthylène), de la polyvinylpyrrolidone, du polyacrylamide de l'hydroxypropylcellulose, de la polyvinylimidazoline, du polyéthylèneglycol, du poly(alcool vinylique) du poly(méthacrylate d'hydroxyéthyle) et des copolymères de silicone, du stéarate de saccharose, de la vitamine E, des savons, des tensioactifs, du panthénol, de l'aloe, un plastifiant, des adoucissants pour la barbe, des lubrifiants, des poudres de polytétrafluoroéthylène, des cires, du menthol, de l'eugénol, de l'eucalyptol, du safrol, du salicylate de méthyle, des agents collants, des agents rafraíchissants non volatiles, des complexes d'inclusion d'agents apaisant la peau avec des cyclodextrines, des parfums des matières antiprurigineuses/contre les irritations, des matières antimicrobiennes/kératolytiques, des agents anti-inflammatoires, des astringents ou des agents de compatibilité.
  15. Système de rasage humide comprenant un élément de lame (60, 62) et un élément externe s'engageant sur la peau (64) adjacent audit élément de lame, caractérisé en ce que ledit élément s'engageant sur la peau comprend
    une gaine allongée (72)comprenant un polymère insoluble dans l'eau, ladite gaine présentant une surface s'engageant sur la peau (74) s'étendant le long d'une surface externe de celle-ci, et
    un noyau (70) s'étendant axialement d'un bout à l'autre de ladite gaine (72), ledit noyau contenant un auxiliaire de rasage qui comprend un polymère soluble dans l'eau,
    dans lequel lesdits gaine (72) et noyau (70) sont extrudés ou moulés et ladite gaine (72) présente au moins une ouverture dans ladite surface s'engageant sur la peau (74) à travers laquelle ledit auxiliaire de rasage est libéré pendant le rasage.
  16. Système de rasage humide selon la revendication 15, dans lequel ledit élément s'engageant sur la peau est comme défini dans l'une quelconque des revendications 2 à 14.
EP95938870A 1994-10-31 1995-10-24 Element venant en contact avec la peau Expired - Lifetime EP0790883B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US33229394A 1994-10-31 1994-10-31
US332293 1994-10-31
US497194 1995-06-30
US08/497,194 US6298558B1 (en) 1994-10-31 1995-06-30 Skin engaging member
PCT/US1995/013713 WO1996013360A1 (fr) 1994-10-31 1995-10-24 Element venant en contact avec la peau

Publications (2)

Publication Number Publication Date
EP0790883A1 EP0790883A1 (fr) 1997-08-27
EP0790883B1 true EP0790883B1 (fr) 1999-03-31

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

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US5956848A (en) 1997-02-27 1999-09-28 The Gillette Company Shaving system
FR2793435B1 (fr) * 1999-05-12 2001-08-03 Bic Rech Et Dev Tete de rasoir comportant un element anti-friction solidaire d'une semelle
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
AU780224B2 (en) 2000-02-18 2005-03-10 Gillette Company LLC, The Shaving aid strip for razor cartridge
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
US9604374B2 (en) * 2009-10-21 2017-03-28 Edgewell Personal Care Brands, Llc Method of making a lubrication box for a wet shaving implement
US20110126413A1 (en) * 2009-12-02 2011-06-02 Andrew Anthony Szczepanowski Razor cartridge components with indicia
US20130042482A1 (en) * 2011-08-16 2013-02-21 Valerie Jean Bradford Skin Engaging Member Comprising An Anti-Irritation Agent
US9889571B2 (en) * 2015-01-08 2018-02-13 The Gillette Company Llc Razor cartridge with a lubrication member having a printed support structure
WO2020148283A1 (fr) * 2019-01-15 2020-07-23 Bic -Violex S.A. Élément de contact avec la peau pour cartouche de rasoir
US20220151891A1 (en) * 2019-02-28 2022-05-19 Bic-Violex S.A. Skin engaging member for razor cartridge comprising skin active ingredient
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
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
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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US7727516B2 (en) 2006-02-28 2010-06-01 The Procter & Gamble Company Reduction of hair growth

Also Published As

Publication number Publication date
DE69508784T2 (de) 1999-09-16
EG20594A (en) 1999-09-30
AU4009295A (en) 1996-05-23
ES2132745T3 (es) 1999-08-16
IL115690A0 (en) 1996-01-19
WO1996013360A1 (fr) 1996-05-09
ATE178253T1 (de) 1999-04-15
JP4011108B2 (ja) 2007-11-21
DE69508784D1 (de) 1999-05-06
CN1167457A (zh) 1997-12-10
CN1104312C (zh) 2003-04-02
PL180436B1 (pl) 2001-02-28
TR199501342A2 (tr) 1996-06-21
JPH10507950A (ja) 1998-08-04
AU686480B2 (en) 1998-02-05
BR9509453A (pt) 1998-01-06
IL115690A (en) 1999-11-30
PL319976A1 (en) 1997-09-01
DE69508784C5 (de) 2012-01-26
MX9703127A (es) 1997-06-28
MA23705A1 (fr) 1996-07-01
NZ296324A (en) 1998-09-24
EP0790883A1 (fr) 1997-08-27

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