Make-up composition comprising fibers

Details Make-up composition comprising fibers Make-up composition comprising fibers

2000-07-07

2002-01-29

Page, Thurman K. (Department: 1615)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

C424S484000, C424S488000, C424S486000, C514S772300, C514S844000, C514S845000, C514S846000, C514S847000, C514S848000

Reexamination Certificate

active

06342237

ABSTRACT:

The present invention relates to a make-up or care process for the skin, comprising applying to the skin a cosmetic composition comprising fibers and an aqueous dispersion of at least one film-forming polymer. The invention also relates to a cosmetic composition comprising fibers and an aqueous dispersion of at least one film-forming polyurethane polymer. The make-up process and the composition are more particularly intended for making up the body and the facial skin, including the lips, the eyelids, and the ears (and in particular the earlobes) of humans.
Make-up products are commonly used to give color, to accentuate certain parts of the skin or superficial body growths, or alternatively, to give the skin or superficial body growths a glossy, matte, or satin appearance. These products are usually applied in the form of a thin uniform coat. However, when the skin has imperfections such as blemishes, spots, or scars, these imperfections are not well camouflaged on account of the thinness of the make-up, in particular because the relief of these imperfections emerges despite the make-up, and the appearance is therefore not uniform. Moreover, with changes in fashion, more demanding consumers are looking for novel make-up products which give original or particular make-up effects, and, in particular, which impart visible transformations to the made-up face or body.
It is known, for example in document JP-A-7 196 440, to use fibers in a make-up composition for the skin to give the skin a velvety feel. However, the fibers in this type of composition do not adhere well to the skin and have a tendency to be removed over time. Such a composition is thus not suitable for providing effective and long-lasting camouflage to skin imperfections.
The aim of the present invention is thus to propose a make-up composition which, at least in some embodiments, gives a make-up which adheres well to the skin and which effectively camouflages skin imperfections.
The inventor has thus discovered that such a make-up can be obtained by using fibers combined with film-forming polymer in aqueous dispersion. In particular, the inventor has obtained make-up embodiments having good staying power, which are, for example, resistant to rubbing and to water. The fibers have good cohesion in the polymer film and thus provide long-lasting camouflage to the imperfections of the made-up skin.
Documents JP-A-57 158 714, JP-A-9 263 518, and JP-A-7 179 323, the disclosures of which are specifically incorporated by reference herein, disclose mascara compositions comprising fibers and an aqueous dispersion of acrylic polymer or of vinyl acetate. However, these documents do not suggest using these compositions for the skin to camouflage its imperfections. In particular, the requirements as regards the film deposited are different: a film formed on the skin or the lips should be able to follow their movements.
Thus, a subject of the present invention is a process for making up or caring for the skin, comprising applying to the skin a cosmetic composition comprising, in a physiologically acceptable medium, fibers and at least one film-forming polymer in the form of particles in aqueous dispersion. Another subject of the invention is a cosmetic composition comprising, in a physiologically acceptable medium, fibers and at least one film-forming polymer in the form of particles in aqueous dispersion, wherein the film-forming polymer is a polyurethane. Another subject of the invention is a process for improving the staying power of a cosmetic composition, comprising adding to the composition fibers and at least one film-forming polymer in the form of particles in aqueous dispersion. By good staying power, it is meant that the composition remains on the surface to which it is applied for a greater period of time than a composition not comprising fibers and at least one film-forming polymer in the form of particles in an aqueous dispersion. Compositions of this embodiment of the invention produced according to this process are particularly resistant to water and/or rubbing when applied to the skin, and effectively camouflage the skin.
In addition to the advantages mentioned above, the composition according to the invention also gives a make-up which has a fabric effect, like velvet, lace, or fur. Thus, this make-up makes it possible in particular to appear clothing-like.
The fibers which can be used in the composition of the invention can be fibers of synthetic, natural, mineral, and organic origin. They can be short or long, hollow or solid, individual or organized, such as, for example, like plaits or braids, and any combination thereof. They can be in any shape, for example, of circular or polygonal cross section, such as square, hexagonal, or octagonal, depending on the specific application envisaged. Further, their ends can be blunt and/or smooth to prevent injury.
The fibers can generally have a length in one embodiment ranging from 1 nm to 50 mm, in another embodiment ranging from 10 nm to 5 mm, and in another embodiment ranging from 0.1 mm to 1.5 mm. Their cross section can be included in one embodiment in a circle of diameter ranging from 2 nm to 1 mm, in another embodiment in a circle of diameter ranging from 20 nm to 500 mm, and in another embodiment in a circle of diameter ranging from 500 nm to 20 mm. The weight of the fibers is often given in denier or decitex.
The fibers which can be used according to the invention can be those used in the manufacture of textiles, such as, for example, silk fibers, cotton fibers, wool fibers, or flax fibers, cellulose fibers (or Rayon), such as, for example, extracted fibers such as fibers from wood, plants, or algae, polyamide (Nylon®) fibers, viscose fibers, acetate fibers, such as, for example, rayon acetate fibers, poly(p-phenyleneterephthalamide) (or aramide) fibers, such as, for example, Kevlar®, acrylic polymer fibers, such as, for example, polymethyl methacrylate or poly(2-hydroxyethyl methacrylate) fibers, polyolefin fibers, such as, for example, polyethylene or polypropylene fibers, glass fibers, silica fibers, carbon fibers, such as, for example, in graphite form, polytetrafluoroethylene fibers (such as Teflon®), insoluble collagen fibers, polyester fibers, polyvinyl chloride fibers, polyvinylidene chloride fibers, polyvinyl alcohol fibers, polyacrylonitrile fibers, chitosan fibers, polyurethane fibers, polyethylene phthalate fibers, fibers formed from a mixture of polymers such as those mentioned above, such as, for example, polyamide/polyester fibers, and mixtures of different fibers.
Moreover, the fibers can be surface-treated or untreated, and can be coated or uncoated. Coated fibers which are useful according to the invention can be, for example, polyamide fibers coated with copper sulphide for an antistatic effect, such as, for example R-STAT from Rhodia, or fibers coated with another polymer to facilitate the specific organization of the fibers (specific surface treatment), or fibers with a surface treatment which induces color and/or hologram effects, such as, for example, Lurex fiber from Sildorex.
In one embodiment, fibers of synthetic origin can be used, for example, organic fibers such as those used in surgery. For example, water-insoluble fibers can be used. The fibers which can be used according to the invention are generally polyamide, poly-p-phenylene terephthalamide, or cellulose fibers. They can generally range in length in one embodiment from 0.1 mm to 50 mm, and in another embodiment from 0.25 mm to 1.6 mm. Their cross section can be included in a circle with an average diameter generally ranging from 5 mm to 1 mm. For example, the polyamide fibers sold by the company P. Bonte under the name Polyamide 0.9 Dtex 0.3 mm, having an average diameter of 6 &mgr;m, a weight of about 0.9 decitex, and a length ranging from 0.3 mm to 1.5 mm, can be used. Poly-p-phenylene terephthalamide fibers with an average diameter of 12 &mgr;m and a length of about 1.5 mm can also be used, such as, for example, those sold under the name Kevlar Floc by the company DuPont Fi

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