EP0167329A2 - Künstliche Fingernägel - Google Patents

Künstliche Fingernägel Download PDF

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Publication number
EP0167329A2
EP0167329A2 EP85304433A EP85304433A EP0167329A2 EP 0167329 A2 EP0167329 A2 EP 0167329A2 EP 85304433 A EP85304433 A EP 85304433A EP 85304433 A EP85304433 A EP 85304433A EP 0167329 A2 EP0167329 A2 EP 0167329A2
Authority
EP
European Patent Office
Prior art keywords
fingernail
artificial
natural
nail
fingernails
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.)
Withdrawn
Application number
EP85304433A
Other languages
English (en)
French (fr)
Other versions
EP0167329A3 (de
Inventor
Helen Marion Siwoku
David Siwoku
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0167329A2 publication Critical patent/EP0167329A2/de
Publication of EP0167329A3 publication Critical patent/EP0167329A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D31/00—Artificial nails

Definitions

  • the present invention relates to artificial finger nails for adhering to natural fingernails, thereby artificially lengthening the natural fingernails, and to a method of adhering the artificial fingernails to natural fingernails.
  • Preformed artificial fingernails have been known for many years. These nails have traditionally been made of polyvinyl acetate and have been adhered to the natural fingernail by gummy adhesives. Such artificial nails have had a number of practical disadvantages which have detracted from their widespread acceptance. Firstly, the acetate material itself is brittle and prone to splitting and breaking. Because of its brittle nature, such nails have had to be relatively thick which led to them being of unsightly and unnatural appearance. A characteristic of the known nails was that, because of the material used in their manufacture, if they were immersed in water they tended to distort and in many cases to come off altogether. Thus, the wearer of such nails had difficultly in washing her hands and had to take special steps to avoid immersion in water.
  • the natural fingernail initially undergoes a series of preparatory steps so that it will satisfactorily accept the artificial fingernail.
  • priorjd(arrying out these preparatory steps the natural fingernail and the surrounding area of the finger is,usually checked for the presence of any disease, deformity or disorder which would result in it being unadvisable to apply the artificial fingernail. If there is no such disease, deformity or disorder present, then the preparatory steps are carried out. Initially, the cuticle is softened and , if necessary, any dead cuticle and hangnails are removed.
  • the surface of the natural fingernail (i.e. the nail plate) and the surrounding area of the finger is then cleansed to remove any oil and/or grease that may be present.
  • any oil and/or grease present on the surface of the natural fingernail and the surrounding area of the finger is removed utilizing methylated spirits. If any oil and/or grease is present and is not removed, then this may hinder the application of the artificial fingernail, for example, by resulting in an unsatisfactory bond between the natural fingernail and the artificial fingernail.
  • the natural fingernail After the natural fingernail has undergone the preparatory steps, it has either a form or a platform placed around the free edge thereof such that a surface is provided on which the artificial fingernail can be subsequently produced. If a form is utilized, then this is usually made of aluminium foil and is removed after the artificial fingernail has been produced. However, if a platform is utilized, then this is usually made of a plastics material and is not removed after the artificial fingernail has been produced, the platform being bonded to the artificial fingernail by means of an acrylic liquid which is the same as that used in the artificial fingernail itself; the formation of the artificial fingernail itself is discussed, in detail, below..
  • the surface of the natural fingernail is then slightly roughened by rubbing it with an emery board, this procedure resulting in a dust being created on the surface of the nail.
  • the dust created provides a "key" which aids the subsequent bonding of the artificial fingernail to the natural fingernail.
  • a coating of an acrylic material, in liquid form, is then applied to the surface of the natural fingernail and, if utilized, to the surface of the platform.
  • the next step is the actual formation of the artificial fingernail and this is achieved by mixing together an acrylic liquid and an acrylic powder and applying this mixture to the surface of the natural fingernail and the form/platform.
  • the acrylic powder/acrylic liquid is applied as evenly as possible to the surface of both the natural fingernail and the form/platform, and is applied to the surface of the form/platform such that an artificial fingernail having the desired length is obtained.
  • the acrylic powder/acrylic liquid is then allowed to harden such that a solid, crude, artificial fingernail is produced.
  • the crude, artificial fingernail which has a dull and rough surface, is filed down into a nail shape and subsequently polished to a high gloss.
  • the filing may, for example, be achieved utilizing files of various coarseness and buffers, and may be carried out by hand or by machine.
  • an artificial plastics fingernail for adhering to the exposed surface of a natural fingernail, the artificial fingernail being made of an acrylonitrile/butadiene/styrene polymer and being shaped to fit over the exposed surface of the natural fingernail and having a rear portion of reduced thickness to enable the latter portion to be pressed down onto the natural fingernail to achieve a close-fitting junction with the cuticle of the natural nail.
  • the reduced thickness of the rear portion of the artificial nail can improve the appearance of the artificial fingernail for two reasons. Firstly, when adhered to the surface of a natural fingernail, the artificial fingernail will have an improved fit at the base of the natural fingernail. That is, the artificial fingernail will not be above the level of the surrounding skin and it will, therefore, be difficult to distinguish the artificial fingernail from a natural fingernail. Secondly, because the artificial fingernail is made of a translucent material, the reduced thickness rear portion will appear lighter in colour than the remainder of the artificial fingernail.
  • the artificial fingernail when adhered to a natural fingernail, will simulate the "half-moon" effect observed at the base of natural fingernails.
  • the artificial fingernail according to the present invention is preferably manufactured in a variety of sizes, e.g. nine different sizes, such that it should not be necessary to trim the sides or rear of the nail in order to achieve a satisfactory fit on the surface of the natural fingernail. This is particularly important since, as already stated, the underside of the edge of the artificial fingernail is contoured to fit the junction of the natural fingernail and the associated cuticle and any trimming of the sides or rear of the artificial fingernail will remove this contoured edge, thus resulting in an inferior fit of the artificial fingernail.
  • the front of the artificial fingernail may be trimmed so that the artificial fingernail, when adhered to the surface of a natural fingernail, has a desired length.
  • This trimming of the front of the artificial fingernail is preferably performed after the artificial fingernail has been adhered to the natural fingernail and will not affect the fit of the artificial fingernail.
  • the artificial fingernail has sufficient flexibility to allow it to bend without breaking.
  • ABS acrylonitrile/butadiene/styrene
  • the artificial fingernail of the present invention is translucent in order that it closely resembles the appearance of a natural fingernail.
  • ABS polymer is particularly suitable for use in forming the artificial fingernails of the present invention since artificial fingernails produced therefrom can, when desired, be readily removed from the natural fingernail, for example, by immersing the artificial fingernail in acetone for a short period of time.
  • a method of adhering an artificial fingernail according to the present invention to a natural fingernail comprising preparing the natural fingernail to accept the artificial fingernail, applying a bonding agent either to the exposed surface of the natural fingernail or to that portion of the underside of the artificial fingernail that is to contact the natural nail, positioning the artificial fingernail on the surface of the natural fingernail, and holding the artificial fingernail in place for a period of time sufficient to allow the bonding agent to bond the artificial fingernail to the natural fingernail.
  • the natural fingernail is prepared such that it will accept the artificial fingernail.
  • This preparation comprises cleansing the natural fingernail, for example, to remove any oil and/or grease that may be present on the surface, of the nail.
  • the area of the finger surrounding the natural fingernail is also cleansed. Cleansing is preferably achieved by washing the natural fingernail and the surrounding area of the finger with hot soapy water and also washing the natural fingernail and the surrounding area of the finger with a solvent capable of removing any oil and/or grease present.
  • a suitable solvent for removing oil and/or grease is acetone.
  • the preparation of the natural fingernail such that it will accept the artificial fingernail also preferably comprises a step wherein the cuticle is softened, for example, by applying an oil to the cuticle. Also, any dead cuticle and hangnails are preferably removed. The softening of the cuticle and the removal of any dead cuticle/hangnails, if carried out, are preferably carried out prior to the cleansing step.
  • the preparation of the natural fingernail also preferably comprises, after the cleansing and any softening of the cuticle, a step wherein the surface of the natural fingernail is rubbed with an abrasive, for example, an emery board, to lightly roughen the surface of the nail and create a dust on the surface of the nail.
  • an abrasive for example, an emery board
  • the purpose of the preparation of the natural fingernail is, firstly, to ensure that a satisfactorily strong bond is subsequently achieved between the natural fingernail and the artificial fingernail, and secondly, to ensure that an anaerobic seal is created between the natural and artificial fingernails when the artificial fingernail is subsequently bonded to the exposed surface of the natural fingernail.
  • the latter point is particularly important since the absence of such an anaerobic seal could result in foreign matter, e.g. moisutre, being able to find its way inbetween the natural and artificial fingernails after they have been bonded together and this could lead to health problems, for example, infections developing between the natural and artificial fingernails.
  • a bonding agent is applied either to the exposed surface of the natural fingernail or to that portion of the underside of the artificial fingernail that will lie on the surface of the natural fingernail when the natural and artificial fingernails are bonded together.
  • the bonding agent is applied to the exposed surface of the natural fingernail.
  • the bonding agent is applied such that, when the artificial fingernail is positioned on the surface of the natural fingernail, substantially the whole of the exposed surface of the natural fingernail is coated with the bonding agent.
  • the bonding agent may be applied to only a portion of either the surface of the artificial fingernail or the natural fingernail but sufficient bonding agent being applied such that, when the artificial fingernail is positioned on the natural fingernail, substantially the whole of the exposed surface of the natural fingernail is coated with the bonding agent.
  • a preferred bonding agent for use in the method of the present invention is a liquid cyanoacrylate adhesive.
  • a more preferred bonding agent is a viscous liquid cyanoacrylate adhesive, for example, as manufactured by Bostik of West Germany.
  • the artificial fingernail After the application of the bonding agent, the artificial fingernail is placed in its desired position on the surface of the natural fingernail and is held in this position for a period of time sufficient to achieve a bond between the artificial and natural fingernails. If a cyanoacrylate adhesive is used as the bonding agent, then the artificial fingernail must be placed in the desired position on the surface of the natural fingernail immediately after the application of the cyanoacrylate adhesive due to the very rapid cure time of the adhesive.
  • the artificial fingernail is preferably held in place on the surface of the natural fingernail for a period of time of from 20 to 30 seconds since this period of time will be long enough for the cyanoacrylate adhesive to cure sufficiently to achieve a positive bond between the artificial and natural fingernails.
  • the free end of the artificial fingernail may, for example, be trimmed such that it has any desired shape and also such that the artificial fingernail has any desired length.
  • the artificial fingernails may be retained in position on the natural fingernails until such time as the growth of the natural fingernail results in a noticeable space between the rear edge of the artificial fingernail and the cuticle. This noticeable space usually develops approximately two to four weeks after the initial application of the artificial fingernails.
  • the artificial fingernails can be readily removed and, if desired, fresh artificial fingernails applied.
  • the removal of the artificial fingernails may, for example, be achieved by immersing the fingernails in a suitable solvent, e.g., acetone, for a short period of time, after which time the artificial fingernails and bonding agent can be readily removed.
  • a suitable solvent e.g., acetone
  • the bonding agent will be softened by the acetone to such an extent that it can be peeled away from the natural fingernail.
  • an artificial fingernail 1 according to the present invention.
  • the artificial fingernail 1 which is made of translucent acrylonitrile/butadiene/styrene polymeric material, has an underside surface 3 which is shaped to fit the exposed surface of a natural fingernail (not shown) and has a rear edge 5 which is shaped to the line of the cuticle associated with the natural fingernail.
  • the present artificial nail has a rear edge 5 which, when viewed from the rear (as indicated by arrow X in Figs. 1 and 2) presents an inverted, deeply convex configuration. This is in contrast to the shape of the known polyvinylacetate nails which had a rear edge lying substantially in the same horizontal plane as the front edge.
  • the nail was almost symmetrical about a plane extending transversely of its length and the front and rear of the nail were substantillay indistinguishable one from the other. As evident from the drawings, this is not the case with the present artificial nail and the result is a much more aesthetically pleasing junction with the natural nail.
  • the artificial fingernail 1 has an underside edge 7 which is chamfered or bevelled to fit the junction between the natural fingernail and the associated cuticle.
  • the artificial nail 1 also has a rear portion 9 of reduced thickness. This enables the portion 9 to have extra flexibility so that it can be pressed down onto the natural nail during bonding. It has been found that this greatly improves the natural appearance of the junction between the artificial nail and the natural cuticle.
  • the border 11 between the portion 9 of reduced thickness and the remainder of the artificial fingernail 1 is convex with respect to the rear edge 5 of the fingernail 1 when viewed in plan and this, together with the translucent nature of the acrylonitrile/butadiene/styrene material from which the artificial fingernail 1 is made, simulates the "half-moon" region normally visible on natural fingernails, thus rendering the artificial fingernails more indistinguishable from natural fingernails.
  • the artificial fingernail and the method of adhering the artificial fingernail to a natural fingernail, according to the present invention have a number of advantages of the "acrylic sculptured tip method" commonly used at present, the main advantages being as follows:-1.
  • the method of adhering the artificial fingernail to a natural fingernail, according to the present invention does not require a skilled person to carry it out as there are no steps requiring a high degree of skill.
  • the method according to the present invention can be utilized to apply a complete set (i.e. ten) of artificial fingernails in approximately fifteen to twenty minutes, if an experienced operator is carrying out the method, and in approximately thirty to forty minutes, if a relatively inexperienced operator is carrying out the method. Both of these times are considerably shorter than the time normally required to apply a complete set of artificial fingernails by the known "acrylic sculptured tip method" which, as previously stated, can take an experienced operator from one to two hours and a relatively inexperienced operator up to four hours.
  • the artificial fingernails according to the present invention when adhered to natural fingernails, have a superior appearance to the artificial fingernails produced by the "acrylic sculptured tip method".
  • the artificial fingernails according to the present invention may be produced in a variety of sizes, thereby reducing or eliminating the need to trim the rear and side edges thereof. This results in the artificial fingernails according to the invention achieving an excellent fit at the junction of the natural fingernails and the associated cuticles and thereby making it difficult to distinguish the artificial fingernails from natural fingernails.
  • the artificial fingernails according to the present invention have a thickness which is closer than the artificial fingernails produced by the "acrylic sculptured tip method", to the thickness of natural fingernails. This feature also, therefore, makes it difficult to distinguish the artificial fingernails of the invention from natural fingernails.
  • Artificial fingernails made of acrylonitrile/butadiene/styrene polymer according to the present invention are more flexible, and hence less prone to damage, than the artificial fingernails produced by the "acrylic sculptured tip method".
  • This flexibility of the artificial fingernials of the invention also minimises the risk of damage to the natural fingernails to which they are adhered. For example, if the artificial fingernail according to the invention is inadvertently knocked or catches on something, it will have a tendency to bend rather than to pull on the natural nail and possibly damage the natural nail. Further, if the pressure or strain applied to the artificial fingernail of the present invention is sufficiently great, then it will have a tendency to break so that the risk of damage to the natural fingernail is minimised.
  • a method by which the artificial fingernail according to the present invention is adhered to the natural nail has the effect that, if the artificial fingernail catches on something, the bond between the artificial and natural fingernails will have a tendency to break before any damage to the natural fingernail occurs.
  • the artificial fingernails according to the present invention are simpler and quicker to remove from the natural fingernails, when desired, than the artificial fingernails produced by the "acrylic sculptured tip method".
  • the artificial fingernails according to the present invention may be simply produced by a moulding technique, for example, by injection moulding. This allows the artificial fingernails to be readily mass produced and produced in a variety of standard sizes.

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  • Materials For Medical Uses (AREA)
EP85304433A 1984-06-20 1985-06-20 Künstliche Fingernägel Withdrawn EP0167329A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848415688A GB8415688D0 (en) 1984-06-20 1984-06-20 Artificial fingernails
GB8415688 1984-06-20

Publications (2)

Publication Number Publication Date
EP0167329A2 true EP0167329A2 (de) 1986-01-08
EP0167329A3 EP0167329A3 (de) 1987-12-02

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Family Applications (1)

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EP85304433A Withdrawn EP0167329A3 (de) 1984-06-20 1985-06-20 Künstliche Fingernägel

Country Status (2)

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EP (1) EP0167329A3 (de)
GB (1) GB8415688D0 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805645A (en) * 1987-07-27 1989-02-21 Jazco International, Inc. Two mode artificial nail
US5005595A (en) * 1988-01-19 1991-04-09 Eylure Limited Fingernail repair
GB2263402A (en) * 1992-01-27 1993-07-28 Sydney Clement Arthur Fuller A finger nail contact extension
EP0596745A1 (de) * 1992-11-06 1994-05-11 Three Bond Of America, Inc. Klebstoff für künstliche Nägel
US5413123A (en) * 1991-01-05 1995-05-09 Aylott, Deceased; David H. Artificial nail tip
US5513664A (en) * 1994-08-15 1996-05-07 Krupsky; Gina Method of constructing artificial finger nails
US5977205A (en) * 1998-03-02 1999-11-02 Mary Ann D. Messere Composition for artificial fingernails
GB2340392A (en) * 1998-08-12 2000-02-23 Holland Topham Karen Danette Artificial toenails
EP1786287A1 (de) * 2004-08-16 2007-05-23 Pacific World Corporation Strukturell flexible künstliche fingernägel
US7997283B2 (en) 2007-04-24 2011-08-16 Pacific World Corporation Artificial nails including application tabs
US8136535B2 (en) 2002-10-28 2012-03-20 Kiss Nail Products, Inc. Artificial nail and method of forming same
US8210185B2 (en) 2004-08-16 2012-07-03 Pacific World Corporation Structurally flexible artificial nails
US8448648B2 (en) 2002-10-28 2013-05-28 Kiss Nail Products, Inc. Artificial nail and method of forming same
US8539960B2 (en) 2008-08-01 2013-09-24 Pacific World Corporation Flexible artificial nails and method of forming same
US8960200B2 (en) 2008-08-01 2015-02-24 Pacific World Corporation Artificial nails including application tabs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH315047A (de) * 1953-03-13 1956-07-15 Hafner Erwin Künstlicher Finger- beziehungsweise Zehennagel
US3750684A (en) * 1972-07-13 1973-08-07 D Russell Artificial nail and method of applying the same
US4135526A (en) * 1977-09-09 1979-01-23 International Beauty Distributor Application of fingernal extension to natural fingernail
US4260701A (en) * 1980-05-12 1981-04-07 Lee Pharmaceuticals Formulation for self-curing artificial fingernails containing methoxyethyl methacrylate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH315047A (de) * 1953-03-13 1956-07-15 Hafner Erwin Künstlicher Finger- beziehungsweise Zehennagel
US3750684A (en) * 1972-07-13 1973-08-07 D Russell Artificial nail and method of applying the same
US4135526A (en) * 1977-09-09 1979-01-23 International Beauty Distributor Application of fingernal extension to natural fingernail
US4260701A (en) * 1980-05-12 1981-04-07 Lee Pharmaceuticals Formulation for self-curing artificial fingernails containing methoxyethyl methacrylate

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805645A (en) * 1987-07-27 1989-02-21 Jazco International, Inc. Two mode artificial nail
US5005595A (en) * 1988-01-19 1991-04-09 Eylure Limited Fingernail repair
US5413123A (en) * 1991-01-05 1995-05-09 Aylott, Deceased; David H. Artificial nail tip
GB2263402A (en) * 1992-01-27 1993-07-28 Sydney Clement Arthur Fuller A finger nail contact extension
GB2263402B (en) * 1992-01-27 1995-08-16 Sydney Clement Arthur Fuller Improvement to a finger nail contact extension
EP0596745A1 (de) * 1992-11-06 1994-05-11 Three Bond Of America, Inc. Klebstoff für künstliche Nägel
US5513664A (en) * 1994-08-15 1996-05-07 Krupsky; Gina Method of constructing artificial finger nails
US5977205A (en) * 1998-03-02 1999-11-02 Mary Ann D. Messere Composition for artificial fingernails
GB2340392A (en) * 1998-08-12 2000-02-23 Holland Topham Karen Danette Artificial toenails
US8448648B2 (en) 2002-10-28 2013-05-28 Kiss Nail Products, Inc. Artificial nail and method of forming same
US8807145B2 (en) * 2002-10-28 2014-08-19 Kiss Nail Products, Inc. Artificial nail and method of forming same
US8136535B2 (en) 2002-10-28 2012-03-20 Kiss Nail Products, Inc. Artificial nail and method of forming same
US7506652B2 (en) 2004-08-16 2009-03-24 Pacific World Corporation Structurally flexible artificial nails
US8210185B2 (en) 2004-08-16 2012-07-03 Pacific World Corporation Structurally flexible artificial nails
EP1786287A1 (de) * 2004-08-16 2007-05-23 Pacific World Corporation Strukturell flexible künstliche fingernägel
EP1786287A4 (de) * 2004-08-16 2008-04-16 Pacific World Corp Strukturell flexible künstliche fingernägel
US7997283B2 (en) 2007-04-24 2011-08-16 Pacific World Corporation Artificial nails including application tabs
US8539960B2 (en) 2008-08-01 2013-09-24 Pacific World Corporation Flexible artificial nails and method of forming same
US8960200B2 (en) 2008-08-01 2015-02-24 Pacific World Corporation Artificial nails including application tabs
US9220331B2 (en) 2008-08-01 2015-12-29 Pacific World Corporation Artificial nails including application tabs
USD748333S1 (en) 2008-08-01 2016-01-26 Pacific World Corporation Combined artificial nail and application tab
USD754928S1 (en) 2008-08-01 2016-04-26 Pacific World Corporation Combined artificial nail and application tab
US9427061B2 (en) 2008-08-01 2016-08-30 Pacific World Corporation Flexible artificial nails and method of forming same

Also Published As

Publication number Publication date
EP0167329A3 (de) 1987-12-02
GB8415688D0 (en) 1984-07-25

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