FR2839864A1 - Instrument used in the cosmetic treatment of nails is a tubular shape in a polymer material in which are embedded longitudinally abrasive fibers, especially glass fibers enriched with zirconium oxide - Google Patents

Abstract

An instrument for the cosmetic care of the nail comprises a tubular shape in a composite material comprising abrasive fibers embedded in a polymer material

Description

The invention relates to an instrument and method for

aesthetic nail veins.

  The method and the instruments currently used for the vein of beauty of the nails will be described with reference to FIG. 1 which represents a profile view in partial section of a phalanx, noted 1

in figure 1.

  During the aesthetic veins of the nails, a major operation consists in pushing back, without injuring it, the cuticle noted 3 in FIG. 1, which surrounds the nail plate or nail, note 5 in FIG. 1, which rests on the

  o nail bed, note 2 in figure 1.

  The purpose of this operation is to give the nail 5 a clear outline,

rounded and harmonious.

  To do this, we currently use small metal spatulas having a slightly rounded end and having a "foam" edge, that is to say not sharp. This end is the working part of the spatula. Small wooden sticks with the same purpose are also widely used because they are less likely than

  the metal spatulas to create wounds.

  These instruments are effective in repelling the cuticle of zo ltongle, but when this operation is done, it remains on the plate

  ungueale 5 a thin skin film which strongly adheres to the nail.

  This skin film is made up of dead skin cells. The metal spatulas and small wooden sticks mentioned more

  z high wind ineffective in removing this very adherent film.

  A metal instrument is then used which has a sharp edge at its working part but which has several drawbacks: a very real risk of injury or at least irritation of the cutaneous areas due to the sharp edge of the working part; a risk of creating notches under so the ungueale plate during the movement of the instrument; and, in the best of cases, the skin film being very thin and very adherent, it is very difficult, if not impossible, to remove it entirely without frosting the underlying nail plate, hence the need for re-polishing

  finishing with another instrument.

  But, in all cases, polishing the entire surface of the nail plate, and not only on the part from which the previously mentioned skin film has been removed, is an essential operation.

for the aesthetic vein of the nails.

  s Indeed, a well-groomed nail should have a regular and smooth surface. However, the surface of the ungueale plate 5 often presents streaks, alternating reliefs and depression, which are most often sanded with a 3-nail file. Also used for this purpose are nail polishers having two to four flat surfaces having roughness or different. But these instruments being flat and the surface of the nail being rounded, it is necessary to use them by varying their angle of attack, the contact of the flat instrument on the convex surface of the nail not being made on the

line at the point of contact.

  Polishing the entire surface of the nail in these conditions takes time. In addition, the lateral edges of the nail cannot be reached without touching the cutaneous part, which, in the case of the nail file, can

again cause injury.

  zo Professionals use grinders mounted on rotary instruments. However, these grinders cannot access the entire surface of the nail and produce, by acting, a

  unpleasant heating of the nail for the patient.

  The invention aims to remedy these drawbacks by z proposing an instrument which alone replaces all the

prior art.

  To this end, the invention provides an instrument for the aesthetic veins of the nails which comprises a profile made of a composite material.

  comprising abrasive fibers embedded in a polymer matrix.

  n / a Preferably, the fibers are made from a material chosen from

  glass, quartz, pure silica and carbon.

  More preferably, the fibers are in an enriched glass)

zirconium oxide.

  Even more preferably, the fibers are in an enriched glass) with 15 to 20%, by weight relative to the total weight of the glass, of oxide

of zirconium.

  Most preferably, the fibers are in an enriched glass) with from 16.8 to 17.1% by weight, relative to the total weight of the glass, of zirconium oxide. According to an advantageous characteristic of the instrument

  [Invention, the fibers have a diameter between 14 and 20 micrometers.

  According to another advantageous characteristic of the instrument of the invention, the fiber content is 40 to 65% by volume, relative to the

  total volume of the entire polymer matrix plus fibers.

  According to yet another advantageous characteristic of the instrument of the invention, the longitudinal, continuous and equalized wind fibers. Preferably, the polymer matrix is a resin

  thermosetting or thermoplastic polymer.

  More particularly, the polymer matrix is chosen from epoxy resins, polyester resins, vinyl ester resins, polyimide resins, polypropylene resins, polyamide resins, methyl zopolymethacrylate resins, polycarbonate resins, polyetherketone resins, polychloride resins vinyl, polyethyleneterephthalate resins. Most preferably, the polymer matrix is a resin

thermosetting epoxy.

  zThe instrument according to the invention can comprise more than 5 a

  % in volume compared to the total volume of the load profile.

  The preferred filler is a clay cited English Clay.

  In this case, preferably, this load represents 5 to 10

  % by volume, relative to the total volume of the profile.

  Advantageously, the profile of the instrument of the invention has at

  minus one of its ends, cited as the working end, which is beveled.

  More advantageously, the profile of the instrument of the invention has at least one of its ends, cited as the working, beveled and

  slightly concave shape, to adapt to the curvature of the nail.

  According to a first embodiment, the instrument of the invention consists of a profile with a length of 6 to 8 cm and a

diameter from 3 to 8 mm.

  According to a second embodiment, the instrument of the invention

  consists of a fixed profile mounted on a handle.

  According to a third embodiment, the instrument of the invention consists of a profile which has on its periphery at least two grooves which makes it capable of fitting into a handle

removable and replaceable.

  o According to a fourth embodiment, the profile of the instrument of the invention at one of its ends, cited as the working end, has a flat surface and the other of its ends has a shape suitable for

  fit in a removable and replaceable way in a rotary instrument.

  In all embodiments, advantageously, the profile

  s has on the external peripheral part of its at least one working end an envelope made of a flexible and soft material, to avoid

  injure the skin surrounding the nail when using the instrument.

  The invention also provides a method of esthetic nail veins, characterized in that the instrument according to the invention is used. The invention will be better understood and other details and advantages

  of this will appear better on reading the explanatory description which

  follows and which is made with reference to the figures in which: - Figure 1 is a side view in partial section of a phalanx, z - Figure 2 is a perspective view of a first embodiment of ['instrument of the invention, - Figure 3 is a perspective view of a second embodiment of the instrument of the invention, - Figure 4 is a perspective view of a third embodiment of [The invention, and - Figure 5 is a perspective view of a fifth mode of

realization of the invention.

  The instrument of the invention is intended for individuals as well as professionals, for the aesthetic veins of the nails as well as

ss hands than feet.

  It alone replaces 3 all the instruments of the prior art: it makes it possible to push back the cuticle without risk of injury or irritation, it allows to quickly and easily remove the adherent skin film without damaging the nail plate, and allows to sand the surface of the nail by surface to surface contact quickly and efficiently, it allows unlimited access to the entire surface of the nail and its

  polishing and abrasive power is constant.

  Indeed, the instrument according to the invention comprises, as a main part, a profile made of a composite material. This composite material includes abrasive fibers embedded in a matrix

cured polymer.

  The profile can have all shapes such as round, half round, square, triangular, rectangular, hexagonal, octagonal or

any polygonal shape.

  s It can have any length and any circumference to make it usable manually, or 3 using rotary instruments and 3

  allow to polish the surface of a nail.

  The profile can be fixed in a removable or permanent way on a handle when it is 3 used by hand or it can still be zo dimensioned and factory in the form of small grinders having the shape and the size of the grinders used in the art previous, that is to say apt 3

  be mounted on existing rotary instruments.

  The polishing and abrasive power of the instrument is obtained by the composition of the profile. Thus, the fibers used in the composition z used to manufacture the wind profile of abrasive fibers such as glass fibers, quartz fibers, pure silica fibers or fibers

of carbon.

  However, preferably, the fibers will be glass fibers

  said AR, that is to say glass which has been enriched) with zirconium oxide.

  ao For this purpose, for the manufacture of such fibers, the zirconium oxide is mixed with the other constituents of the glass, this mixture is then melted and the glass fibers are frozen from the mass of glass having the desired viscosity. This type of fiber is especially manufactured

  and sold under the name CEMFIL by the company Saint-Gobain.

  The use of these fibers is particularly advantageous. Indeed, they do not disintegrate into fibrils when they wear out but are

  fragment into small elements larger than 3 micrometres.

  These small elements are not irritating to the skin whereas the fibrils which detach from the glass fibers, such as glass E for example, can cause redness, irritation and itching because each fibrill behaves like a tiny planted needle. in the skin. The size of the fibers used can vary but is preferably

o from 14 to 20 micrometers.

  The percentage of fibers in the profile according to the invention is

  preferably 45 to 65% by volume, relative to the total volume of the profile.

  The fibers in the profile can be unidirectional or multidirectional, continuous or discontinuous, they can be gimped,

twisted or in the form of braids.

  Preferably, however, they are continuous and unidirectional. These fibers, embedded in the polymer matrix, represent the

  active abrasive part of the instrument of the invention.

  zo Indeed, at each of its ends, the profile potentially presents a work surface made up of the cross section of the fibers embedded in the polymer matrix, these fiber sections

  giving the instrument its abrasive power.

  This abrasive power of the instrument according to the invention is constant.

  z Indeed, the abrasive action being situated at their end, each time that the end of a fiber breaks, it is replaced by the new end.

  of the same fiber and, thus, the abrasive power is constantly renewed.

  By applying the end of the profile to the rod, the fibers

polish the surface of this nail.

  n / a As these fibers are embedded in a polymer matrix, the profile of the instrument of the invention can also be used to repel

  cuticle of the nail, without risk of injuring the user.

  Indeed, the cuticle will be pushed back using the edges of the

  working part of the profile, which are made up of the polymer matrix.

  as To improve comfort, the polymer matrix can be blunted only on its periphery to be more flexible, more elastic and softer. The polymer matrix can be any thermosetting or thermoplastic polymer resin. In particular, it can be an epoxy, polyester, vinylester, polyimide, polypropylene, polyamide, polymethyl methacrylate, polycarbonate, polyether-ketone resin,

  polych loru re de vi nyle or polyethyleneterephta late.

  In a preferred embodiment of the invention, the resin is

a thermosetting epoxy resin.

  o A filler can be incorporated in this epoxy resin, before its polymerization, in the aim either to give the resi ne the viscosity necessary for the manufacturing method selected from the profile, or to strengthen or soften the abrasive power of [' instrument of the invention, this charge

  can therefore be abrasive or non-abrasive depending on the desired result.

  s The proportion of filler in the resin varies from 5 to 30% in

resin volume.

  It may of course be necessary to add one or more fillers in order to obtain both the necessary viscosity of the resin and

  reinforce or soften the abrasive power of the instrument according to the invention.

  zo A preferred filler in the invention is a clay filler and cites English Clay, which is non-abrasive, and which aims to adjust the viscosity of the resin and to soften the abrasive action of the fibers, in particular

  enriched AR glass fibers) in zirconium oxide.

  In this case, preferably, the English Clay filler is incorporated into resin 3, a content varying from 5 to 10% inclusive, in

  volume, relative to the volume of the resin.

  The profile can be produced by any suitable technique such as by injection molding, by extrusion molding and, in a preferred embodiment of the invention, by the pultrusion technique. The pultrusion technique consists in passing the fibers under tension, in a resin bath or in an injection chamber containing the unpolymerized resin, where they are coated with resin, then passing the fiber-resin assembly in a heated die whose profile

  ace in hollow will give the shape of the desired profile.

  The fibers soaked in resin thus pass through the die, undergoing both a high compressive stress and being strongly pulled and even. The resin polymerizes and hardens during

  its passage in the die under the effect of heat.

  The profile recovered at the outlet of the die is cut, for example by means of a T-shear to the desired length, for example with a saw with a diamond blade. This profile is then shaped by machining 3 la

form of the desired instrument.

  In order to better understand the invention, we will now describe it by way of purely illustrative and nonlimiting examples

several embodiments.

EXAMPLE

  s The instrument of the invention according to note 6 in FIG. 2, a first embodiment is as shown in FIG. 2. It is made up only of the profile also note 6 in FIG. 2. It was made from a composite material containing 55% by volume of fibers, noted 8 in FIG. 2, and 45% by volume, relative to the total volume of zo profile 6, of an epoxy resin constitute the polymer matrix, noted 9

in figure 2.

  The fibers are made of glass (which has been enriched) with 15% by weight of zirconium oxide. Profile 6 was produced by the pultrusion method. z The fibers represent 40% by volume relative to the volume

  total of the polymer matrix assembly 9 plus fibers 8.

  Profile 6 constitutes the entire instrument according to the invention.

  To facilitate its gripping, it has a length of 6 cm.

  In this embodiment, it has a cylindrical shape and its

  so diameter is 3 mm. However, this form is not limiting.

  This profile 6 has a working end, noted 7 in Figure 2, beveled. On the surface of this beveled end 7, appear the

  fiber sections 8 also bevelled.

  The user uses this profile 6 as an instrument for aesthetic veins of the nails in the following way: It repels the cuticle, noted 3 in FIG. 1, with the edges of the end 7 which are made up of the polymer matrix, possibly blunt at the periphery of the end 7. Then, thanks to the abrasive action of the fibers 8 appearing on the surface of the end 7, it eliminates by friction the adherent skin film, left by the

  cuticle 3, without damaging the ungueale plate noted 5 in FIG. 1.

  Finally, by applying the entire surface of the end 7 to the nail, it polishes the ungueale plate, noted 5 in FIG. 1, without damaging the matrix,

  note 4 in figure 1, nor the nail bed, note 2 in figure 1.

EXAMPLE 2

  The instrument according to a second embodiment [the invention is

shown in Figure 3.

  In this embodiment also, it is made up of

  profile, also note 6a in figure 3.

  This profile 6a was produced by pultrusion of a composite material comprising 65% by volume, relative to the total volume of profile 6a, of fibers 8 made of glass which has been enriched) with 16.8% by weight, relative to the weight total glass, zirconium oxide and epoxy resin

thermosetting 9.

  Again, the profile 6a has a cylindrical shape. He has one

  total length of 8 cm and a diameter of 8 mm.

  The profile 6a is then cut at a bevel at its two ends, noted 7a in FIG. 3, to which, moreover, by machining, a concave shape is given which will adapt to the convex shape of the ungueale plate, noted 5 in FIG. 1. , This bevelled and convex shape increases the contact surface of the instrument according to the invention against the surface of the plate

ungueale 5.

  The instrument according to this example is used in the same way as

  that described for the instrument described in Example 1.

EXAMPLE 3

  The instrument according to the invention can also be as

shown in Figure 4.

  In this example, the instrument according to the invention, note 6b in FIG. 4, is made up on the one hand of the profile of composite material, note in FIG. 4, and of an attachment clip, note 14 in FIG. 4, which is used to fix

  a handle, not shown, with profile 10.

  In this example, the clip 14 and the removable vent to handle, which makes it easy to replace the profile 10, when it is out of use or when it has been used once and only for single use is required, especially for professionals, in order to meet the

  current hygiene and / or cross infection prevention requirements.

  The profile 10 is made of a composite material comprising 65% by volume, relative to the total volume of the fiber profile 8 made of AR glass, that is to say an enriched glass) with 17.1% by weight, relative to the weight

  total glass, zirconium oxide.

  Profile 10 was manufactured by pultrusion, in a die

  rectangular section, of the composite material described above.

  zo Then, by machining, we created the working end 7b in

  cutting at one of the ends of profile 10.

  The end 7b is further machined to obtain a shape

  concave conforming to the shape of the polishing rod.

  On the lateral faces, noted 11a and 11b, of the non-bevelled part of profile 10, of the grooves, noted 12a and 12b, created wind which

  end with housings 13a and 13b.

  As for the fastening clip 14, it is made up of a rectangular section plate having dimensions that are adapted to fit on the profile 10. The clip 14 will snap in, removably, on the profile 10 and will be held in place by fitting guide tips 15a and 15b

in housings 13a and 13b.

  The attachment clip 14 comprises, at its other end, clipping means 16a and 16b which make it possible to set up and remove the end pieces 15a and 15b from the profile 10 and also to fix a handle. The instrument represented in figure 4 is used in the same way

  than the instruments described in examples and 2.

  Although there is shown in Figure 4 an example of attachment mode on a removable handle gr3ce 3 an attachment clip, any other removable and replaceable attachment can be used to make the instrument according to the invention

EXAMPLE 4

  In this example, the instrument according to the invention consists of a profile, note 6c in FIG. 5, which is made of a composite material comprising fibers 8 enriched with 20% by weight of zirconium oxide, by

relative to the total weight of the glass.

  t5 The fibers 8 have a diameter of 20 micrometres.

  The fiber content 8 is 65% by volume.

  The epoxy resin 9 matrix is an epoxy resin which contains more than 5% by volume, relative to the volume of the epoxy resin 9, of English Clay clay which has here the function of softening the abrasive power of the fibers 8 zo which blows in high proportion in the composition used for manufacturing

of profile 6c.

  Profile 6c is manufactured by pultrusion using a cylindrical die. The profile obtained at the outlet of the extrusion die is then factory-produced to obtain the profile 6c represented in FIG. 5 which has at one of its ends a conical part, denoted 18 in FIG. 5, the working end of which 7c has a section with a flat surface and a totally cylindrical part, noted 17 in FIG. 5, capable of fitting into a mandrel 20 of a rotary device usually used by professional professionals. The instrument of the invention is therefore here a grinder which will

  rotation to polish the surface of the nail thanks to a rotary device.

  Due to its low cost, this grinder can be used

  unique and discarded after each use.

  This grinder is used according to the usual method of

  professionals using their usual devices.

EXAMPLE 5

  The instrument according to the invention can also be made up of a profile such as those described in examples and 3, but one end of which is bevelled to create the desired working end, and only the other end is fixed definitively on a handle by everything

  o medium, such as bonding, screwing or crimping.

EXAMPLE 6

  The same instruments as those described in the examples at 5 s for the aesthetic veins of the nails were manufactured using, to manufacture the profiles, a composite material comprising either glass fibers other than AR glass, or silica fibers, or more

  quartz fibers, and also carbon fibers.

  The results were loons.

  zo However, when instruments made from a profile comprising E glass fibers were used, the E glass fibers disintegrated into fibrils, which could injure the skin surrounding the nail. For this reason, this embodiment is less preferred. z Of course, the invention is in no way limited to the embodiments described which have been given only by way of nonlimiting examples

of the invention.

  Indeed, the essential characteristic of the instrument for the aesthetic veins of the nails of the invention is that it comprises a profile in so of a composite material comprising abrasive fibers embedded in a polymer matrix, at least one of the ends of the profile being cut to reveal the sections of the abrasive fibers, this extremity serving as an end for polishing the nails, pushing back the cuticles and removing the film of dead epithelial cells left during

  ss operation consist in pushing back the cuticle.

  Any composite material comprising abrasive fibers embedded in a polymer matrix may be used. Preferably, the composite material comprises from 40 to 65% by volume, relative to the total volume of the profile. When glass fibers enriched with zirconium are used, these fibers are made from enriched glass with from to 20% by weight, relative to the total weight of the glass, of zirconium oxide, preferably enriched) with from 16.8 to 17.1% by weight of oxide

  of zirconium, based on the total weight of the glass.

  This means that the invention includes all the technical equivalents or the means described as well as their combinations if these

wind made according to his spirit.

Claims (23)

REVEN DICATIONS   1. Instrument for the aesthetic veins of the nails, characterized in that it comprises a profile (6, 6a, 6b, 6c) made of a composite material comprising abrasive fibers (8) embedded in a polymer matrix (9). 2. Instrument according to claim i, characterized in that the fibers (8) wind in a material chosen from glass, quartz, silica pure and carbon.   o 3. Instrument according to claim or 2, cara * erise in that   that the fibers (8) wind in an enriched glass) in zirconium oxide.   4. Instrument according to any one of the claims   previous, characterized in that the fibers (8) wind in an enriched glass) with 15 to 20% by weight, relative to the total weight of the glass, of oxide of zirconium.   5. Instrument according to any one of the claims   previous, characterized in that the fibers (8) wind in an enriched glass) with from 16.8 to 17.1% by weight, relative to the total weight of the glass, zirconium oxide.   zo 6. Instrument according to any one of the claims   previous, characterized in that the fibers (8) have a diameter included between 14 and 20 micrometers.   7. Instrument according to any one of the claims   above, characterized in that the fiber content (8) is from 40 to 65% by volume relative to the total volume of the matrix assembly polymer (9) plus fibers (8).   8. Instrument according to any one of the claims   previous, characterized in that the fibers (8) are longitudinal, continuous and fair.   n 9. Instrument according to any one of the claims   above, characterized in that the polymer matrix (9) is a   thermosetting or thermoplastic polymer resin.   10. Instrument according to any one of the claims   precedents, characterized in that the polymer matrix (9) is chosen from epoxy resins, polyester resins, vinylester resins, polyimide resins, polypropylene resins, polyamide resins, polymethyl methacrylate resins, resins polycarbonate, polyether ketone resins, polyvinyl chloride resins, polyethyleneterephthalate resins.   11. Instrument according to any one of the claims   above, characterized in that the polymer matrix (9) is a thermosetting epoxy resin.   12. Instrument according to any one of claims   previous, characterized in that it comprises more than 5 to 30% by volume, relative to the total volume of the profile (6, 6a, 6b, 6c) of a load. 13. Instrument according to claim 12, characterized in that   the filler is a clay quoted English Clay.   14. Instrument according to claim 13, characterized in that s the load represents 5 3 10% by volume, relative to the total volume of the profile (6, 6a, 6b, 6c).   15. Instrument according to any one of claims   previous, characterized in that the profile (6, 6a, 6b, 6c) has at least one   of its ends (7, 7a, 7b, 7c), cited working end, beveled.   zo 16. Instrument according to any one of claims   precedents, characterized in that the profile (6, 6a, 6b, 6c) has at least one of its ends (7a, 7b), cited working end, bevelled with   a slightly concave shape to adjust the curvature of the nail.   17. Instrument according to any one of the claims   z precedentes, characterized in that the profile (6, 6a, 6b, 6c) has a length between 6 and 8 cm and a diameter between 3 and 8 mm.   18. Instrument according to any one of claims   precedents, characterized in that it consists essentially of profile (6).   19. Instrument according to any one of claims 1 3   17, characterized in that it is fixedly mounted on a handle.   20. Instrument according to any one of claims 1 3   17, characterized in that the profile (6b) is removably mounted and ace replaceable on a handle.   21. Instrument according to any one of claims 1 a   14, characterized in that the profile (6c) has one of its ends (7c), cited as the working end, with a flat surface and the other of its ends (19) which has a shape capable of fitting in. 'ter removable and replaceable in a rotary instrument.   22. Instrument according to any one of claims   precedents, characterized in that the working end (7, 7a, 7b, 7c) comprises on its external peripheral part an envelope made of a flexible and soft material to avoid injuring the skin surrounding the nail,   to when using the instrument.   23. Method of aesthetic nail veins, characterized by   what is used [instrument according to any one of claims