FR2897262A1 - Single-use cosmetic article e.g. wipe for removing makeup comprises polyvinyl alcohol fiber derived water-soluble nonwoven substrate; and anhydrous cosmetic composition containing oil and nonionic emulsifying surfactant soluble in the oil - Google Patents

Abstract

Single-use cosmetic article (A1), comprises at least one water-soluble substrate in the form of a nonwoven formed by entanglement of polyvinyl alcohol fibers, which are soluble in water at >= 350[deg]C; and anhydrous cosmetic composition borne by the support, containing at least one oil (preferably fatty acid esters and/or liquid petroleum jelly) and at least one nonionic emulsifying surfactant that is soluble in the oil or mixture of oils, chosen from oxyalkylenated fatty acid esters of sorbitan and/or oxyalkylenated fatty acid esters of glycerol. An independent claim is included for a cosmetic process for cleansing or removing makeup from the skin, involving placing article (A1) in contact with the surface of the skin; moistening the article with cold water; placing the moistened article in contact with the skin and dissolving the article in water at least 350[deg]C.

Description

The present invention relates to an article

  cosmetic composition comprising a fibrous support capable of dissolving in water, and a composition containing at least one oil and at least one surfactant. It also relates to the uses of this article, especially in the cosmetic field, more particularly for cleaning and / or removing makeup from the skin and / or hair.

  For removing makeup or cleaning the skin, it is known to use wet wipes consisting of a water-insoluble substrate containing an impregnating composition. The water-insoluble substrate is preferably a nonwoven formed by the entanglement of water-insoluble fibers, of natural or synthetic origin, and this substrate is impregnated with a composition adapted to the desired purpose, for example for cleaning or removing makeup from the skin or for the care of the skin. These wipes are commonly used and are appreciated for their practical and nomadic side as they are disposable and are impregnated with the necessary and sufficient amount of cleaning or treating product.

  Among the makeup removal products commonly used, the anhydrous compositions based on oil mixtures are recognized for their superior efficacy to those of aqueous lotions or make-up removing milks, because of their high solvent capacity vis-à-vis make-up compounds . Anhydrous makeup removers make it possible to remove make-up from all types of makeup, especially waterproof or long-lasting products that are known to be harder to remove than conventional products.

  Anhydrous makeup removers despite their high efficiency, a significant disadvantage that they leave on the skin, an oily residue unpleasant, difficult to eliminate, giving an impression of poorly cleaned skin. A known solution is to add to the oil mixture, one or more surfactants for forming an emulsion by adding water. Thus, after being cleansed, the user can rinse the face with water to remove the residual oil film by emulsifying it. This two-step gesture cleans the skin, first removing makeup with the oily composition and then removing the residual oily film. However, this gesture is often considered long and tedious, and it has the disadvantage of requiring the use of a certain amount of water that can run down the neck and arms, which is unpleasant.

  Furthermore, it is known to impregnate compositions based on oils and surfactants on water-insoluble nonwoven supports as described, for example, in US-A-6,136,775 in which. the wipe is either used directly or is previously moistened with a little water so as to emulsify the mixture of oils and surfactants. However, whatever the impregnated composition, such a wipe is an article which, despite its practical nature, can be a source of rejection by the consumer because it generates waste that may present a problem during disposal or because There are no garbage cans nearby, either because it is awkward to disperse the soil on the article, or simply because of the gene caused by generating excess waste.

  There is therefore still a need for a wipe impregnated with an anhydrous makeup remover, which can easily be removed without problems and without waste after use.

  This application meets this need. Indeed, the Applicant has surprisingly found that it was possible to obtain such a wipe using a particular wipe support and a specific make-up removal composition, so that one obtains an article that has a good efficiency. and which is easily eliminated.

  Thus, the invention relates to a single-use cosmetic article, more particularly a wipe, comprising: (1) at least one water-soluble substrate, in the form of a nonwoven formed by the entanglement of polyvinyl alcohol fibers, soluble in water at a temperature equal to or greater than 35 C, (2) an anhydrous cosmetic composition carried by the support, containing at least one oil and at least one nonionic emulsifying surfactant soluble in the oil or the mixture of oils, the article being substantially dry and being soluble in water at a temperature equal to or greater than 35 C.

  In the present application, the term "substantially dry article" means an article impregnated with a composition containing less than 15% water, preferably less than 10% water and better still less than 5% by weight water relative to total weight of the composition. The amount of water in the composition may thus range from 0 to 15% by weight, preferably from 0 to 10% by weight and better still from 0 to 5% by weight relative to the total weight of the composition. If the composition contains water, it is generally in the form of an W / O emulsion, the water being present in the form of droplets dispersed in a continuous oily phase. This small amount of water can not solubilize the polyvinyl alcohol fibers.

  The term water-soluble article at a temperature equal to or greater than 35 C, an article which dissolves by simple contact with water at least 35 C, that is to say between 35 C and 90 C, with the help of manual agitation and / or friction of the article if necessary.

  Moreover, by fibers soluble in water at a temperature of 35 ° C. or higher, fibers which dissolve in water at a temperature of at least 35 ° C., for example from 35 ° C. to 50 ° C. with using a manual stirring and / or friction of the support if necessary, in a period of time typically less than 5 minutes, preferably less than 1 min, preferably less than 30 seconds. The invention does not exclude that a water of temperature greater than 50 C and up to 90 C is used to dissolve the support.

  The application FR-2,856,911 describes a disposable article comprising a fibrous support of water-soluble polyvinyl alcohol fibers retracting in contact with water at a temperature of less than or equal to 40 ° C. and dissolving at a second temperature greater than or equal to C. The article in question can be impregnated with a substantially anhydrous cosmetic composition, or it can receive this composition after having previously moistened with water at a temperature of less than or equal to 40 C. The compositions mentioned in this application are solids, for example a powder of a foaming or makeup composition, fatty substances or an encapsulated liquid. No makeup removal composition is described.

  The article according to the invention combines a particular substrate and a specific makeup removing composition which is converted into an oil emulsion in water in contact with water, which makes it possible to obtain a good make-up removal and a better cosmetic comfort.

  The article of the invention may be in the form of a wipe, a pad, a compress, a pad or any other form suitable for removing makeup from the face and eyes.

  In an exemplary embodiment of the invention, the article according to the invention is used in the following manner: (1) the article impregnated with the anhydrous composition is passed on the skin, (2) the article is then moistened under cold water (running tap water, which generally has a temperature of 18 C to 20 C) to remove both the excess anhydrous composition remaining on the article and the makeup products deposited on the article in step (1), (3) the wet article is again passed on the face, which emulsifies the anhydrous composition present on the skin and thus eliminate the residual oily film and the possible remains of make-up, and also to perfect the make-up removal and the cleaning of the skin. (4) then the article is dissolved under hot water (at least 35 C).

  Step (3) may optionally be repeated if necessary.

  Thus, according to another of its aspects, another subject of the invention is a cosmetic process for cleaning or removing make-up from the skin, comprising: bringing an article as defined above into contact with the surface of the skin; the skin, - moistening the article with cold water, - contacting the moistened article with the skin, - dissolving the article in water at a temperature of at least C.

  In another embodiment of the invention, the skin is previously moistened, and the article according to the invention is brought into contact with the previously moistened skin.

  The article according to the invention being intended for topical application, it is physiologically acceptable. Physiologically acceptable means an article compatible with keratin materials such as skin, lips, nails, scalp and / or hair. It is the same for the substrate, as well as the composition.

  The article is flexible, that is, flexible. By flexible, we must understand an article that can be compressed or can flex without breaking, able to adapt to the reliefs of the human body. A flexible article made in the form of a fibrous web may in some embodiments be folded on itself at least once without breaking into two pieces.

  After its manufacture, the article can be for example packaged in bulk in a box or in an individual package. In this case, the articles are packed in a rosary. The articles can still be folded on themselves and interposed, so that the removal of an article brings the next in a configuration facilitating its grip.

  Thus, another aspect of the invention, according to another of its aspects, is an assembly comprising: a packaging, at least one article as defined above.

  Substrate To produce the nonwoven substrate, water-soluble polyvinyl alcohol fibers are used at a temperature of 35 ° C. or higher, for example the fibers sold by Kuraray under the name KURALON K-11, and particularly soluble WN4 from 40 C or soluble WN5 at 50 C. These fibers are described in EP-A-636716 which teaches the manufacture of polyvinyl alcohol fibers (PVA) soluble in water at temperatures below not exceeding 100 ° C., by spinning and stretching the polyvinyl alcohol polymer in the dry or wet state in the presence of solvents involved in the solubilization and solidification of the fiber. The fiber thus obtained can lead to the production of woven or non-woven substrates. EP-A-636716 also teaches that the solubility temperature of the fiber depends on the proportion within the polymer between the polyvinyl alcohol groups and the polyvinyl acetate groups, i.e., it depends on the degree of saponification of vinyl acetate groups. It can therefore be envisaged to modulate the solubility temperature of the fiber and therefore of the article, to aim at a dissolution temperature of the article neither too low nor too high, while allowing the use of the most appropriate techniques for manufacturing nonwoven support. For example, the fibers can be formed by extrusion and deposited on a conveyor to form a web of fibers which is then consolidated by a conventional technique of fiber bonding, such as, for example, needling, heat-bonding, calendering or tying by hot air jets (in English air through bonding) technique in which the sheet passes into a tunnel where is injected hot air, or hydrolysis to bind the fibers under the action of fine jets water under very high pressure, which can not be applied to fibers whose dissolution temperature is too low. pressure.

  The invention is not limited to the use of PVA alone, and it is also possible to use fibers made with a blend of PVA and other water-soluble materials provided that these materials dissolve in water having the temperature. For example, polysaccharide fibers or fibers based on polysaccharide polymers such as glucomannan or starch.

  The substrate may have any shape suitable for the intended use, for example a rectangular, round or oval shape, and it preferably has dimensions allowing its gripping between two fingers at least. Thus, the support may have, for example, an ovoid shape of about 2 to 10 cm long and about 0.5 to 4 cm wide, or a disc shape of about 2 to 10 cm in diameter, or a a square shape of about 5 to 15 cm square, or a rectangle shape of a length of about 5 to 25 cm, it being understood that it can have any other shape and dimension appropriate for the desired use.

  The article according to the present invention may comprise one or more non-woven substrates that are soluble in water at a temperature equal to or greater than 35 ° C. When the support comprises several plies of non-woven fabric, these may be assembled in particular by heat sealing at their periphery.

  Oils The composition contains one or more oils, preferably in an amount of at least 50% by weight based on the total weight of the composition. The amount of oil (s) can range, for example, from 50 to 99.5% by weight, preferably from 60 to 98% by weight, and better still from 70 to 95% by weight relative to the total weight of the composition. Suitable oils for use in the composition of the invention include, for example: hydrocarbon oils of animal origin, such as perhydrosqualene; hydrocarbon-based oils of vegetable origin, such as liquid triglycerides of fatty acids containing from 4 to 10 carbon atoms, for example triglycerides of heptanoic or octanoic acids or else, for example, sweet almond oil, corn oil, soy, squash, coriander, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by Stearineries Dubois or those sold under the names Miglyol 810, 812 and 818 by Dynamit Nobel, jojoba oil, shea butter oil; esters and synthetic ethers, in particular of fatty acids, such as the oils of formulas R'COOR2 and R'OR2 in which R 'represents the residue of a fatty acid containing from 8 to 29 carbon atoms, and R2 represents a hydrocarbon chain, branched or unbranched, containing from 3 to 30 carbon atoms, for example Purcellin oil, isononyl isononanoate, isopropyl myristate, isopropyl palmitate, palmitate or 2-ethylhexyl (or octyl palmitate), octyl-2-dodecyl stearate, octyl-2-dodecyl erucate, isostearyl isostearate; hydroxylated esters such as isostearyl lactate, octyl hydroxystearate, octyldodecyl hydroxystearate, diisostearyl malate, triisocetyl citrate, heptanoates, octanoates, decanoates of fatty alcohols; polyol esters, such as propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate; pentaerythritol esters such as pentaerythrityl tetraisostearate; benzoic acid ester and C12-C15 alcohols (INCI name: C12-15 Alkyl Benzoate), and mixtures thereof; linear or branched hydrocarbons of mineral or synthetic origin, such as paraffin oils, volatile or not, and their derivatives, petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam oil; fatty alcohols having from 8 to 26 carbon atoms, such as cetyl alcohol, stearyl alcohol and their mixture (cetearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol; alkoxylated and especially ethoxylated fatty alcohols such as oleth-12 or ceteareth-20; partially fluorinated hydrocarbon oils and / or silicone oils such as those described in document JP-A-2-295912. As fluorinated oils, mention may also be made of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC PC1" and "FLUTEC PC3" by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050" and "PF 5060" by the company 3M, or bromoperfluorooctyl sold under the name "Foralkyl" by the company Atochem; nonafluoromethoxybutane sold under the name "MSX 4518" by the company 3M and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052" by the company 3M; silicone oils such as volatile or non-volatile polymethylsiloxanes (PDMS) with a linear or cyclic silicone chain, which are liquid or pasty at room temperature, in particular cyclopolydimethylsiloxanes (cyclomethicones) such as cyclohexasiloxane; polydimethylsiloxanes comprising alkyl, alkoxy or phenyl groups, during or at the end of the silicone chain, groups having from 2 to 24 carbon atoms; phenyl silicones such as phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyl-dimethicones, diphenylmethyldiphenyltrisiloxanes, 2-phenylethyltrimethylsiloxysilicates, and polymethylphenylsiloxanes; - their mixtures.

  The term "hydrocarbon-based oil" in the list of oils mentioned above, any oil predominantly comprising carbon and hydrogen atoms, and optionally ester, ether, fluoro, carboxylic acid and / or alcohol groups.

  According to a preferred embodiment, the composition contains at least one oil selected from fatty acid esters, petroleum jelly and mixtures thereof.

  Emulsifying surfactants The composition contains one or more nonionic emulsifying surfactants.

  These surfactants make it possible for the oil to be emulsified during the wetting of the article with water by forming an emulsion. The amount of surfactant (s) may range, for example, from 0.5 to 50% by weight, preferably from 2 to 40% by weight, better still from 5 to 30% by weight relative to the total weight of the composition. The surfactant or surfactant mixture preferably has an HLB (Hydrophilic Lipophilic Balance) ranging from 5 to 15, preferably from 8 to 14, and it must be soluble in the oily phase. Surfactants having an HLB greater than 15 may also be used, provided that one or more other surfactants are added so that the HLB of the mixture ranges from 5 to 15. Thus, PEG-40 Stearate can be used. HLB 16.9) in admixture with another surfactant having an HLB such that the mixture has a HLB of 5 to 15.

  Nonionic emulsifying surfactants that may be mentioned include, for example, fatty acid esters and polyols, and their oxyalkylenated and especially oxyethylenated derivatives; ethers of fatty alcohols and polyols, and their oxyalkylenated and especially oxyethylenated derivatives, and mixtures thereof. In the case of fatty acid esters and oxyalkylenated polyols or ethers of fatty alcohols and oxyalkylenated polyols, there may be, for example, from 1 to 150 oxyalkylenated and especially oxyethylenated groups, and preferably from 2 to to 100 oxyalkylenated and especially oxyethylenated groups.

  As surfactants of this type, mention may be made more particularly of: oxyethylenated or non-oxyethylenated fatty acid and sorbitan esters, preferably oxyethylenated esters such as (INCI name) Polysorbate 65, Polysorbate 85, PEG-5 Sorbitan Isostearate, PEG- Sorbitan Triisostearate, PEG-20 Sorbitan Isostearate, PEG-40 Sorbitan Septaoleate, PEG-20 Sorbitan Tetraoleate, PEG-20 Sorbitan Trioleate; oxyethylenated fatty acid and glyceryl esters, preferably oxyethylenated, such as (INCI name) PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate; fatty acid and polyglyceryl esters such as (INCI name) Polyglyceryl-3 Triisostearate, Polyglyceryl-10 Diisostearate, Polyglyceryl-6 Isostearate, Polyglyceryl-3 Diisostearate, Polyglyceryl-10 Trioleate, Polyglyceryl-10 Trilaurate; fatty acid esters of polyethylene glycol such as (INCI name) PEG-8 Stearate, PEG-6 Oleate, PEG-6 Isostearate, PEG-12 Isostearate, PEG-12 Diisostearate, PEG-8 Isostearate, PEG-8 Diisostearate, PEG-10 Isostearate; ethers of polyoxyethylenated and / or polyoxypropylenated fatty alcohols, for example ceteareth-12 and ceteareth-20 (INCI name), as well as mixtures containing them, such as the mixture sold under the name Emulgade CM by the company Cognis ( mixture of cetearyl isononanoate, ceteareth-20, cetearyl alcohol, glyceryl stearate, glycerin, ceteareth-12 and cetyl palmitate) -and mixtures thereof.

  The emulsifying surfactant or surfactants are preferably chosen from oxyethylenated fatty acid and sorbitan esters, such as (INCI name) Polysorbate 65, Polysorbate 85, PEG-5 Sorbitan Isostearate, PEG-20 Sorbitan Triisostearate, PEG-20 Sorbitan Isostearate , PEG-40 Sorbitan Septaoleate, PEG-20 Sorbitan Tetraoleate, PEG-20 Sorbitan Trioleate; and oxyethylenated fatty acid and glyceryl esters such as (INCI name) PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate; and their mixtures.

  It is also possible to add foaming surfactants, especially for articles, in particular wipes, for cleaning or removing makeup from the skin. As surfactants of this type, there may be mentioned, for example: (1) among the nonionic surfactants, the oxyethylenated oxypropylene block polymers such as Poloxamer 184 (INCI name); alkylpolyglycosides and in particular alkylpolyglucosides (APG) having an alkyl group containing from 6 to 30 carbon atoms (alkyl-C6-C30 polyglucosides) and preferably 8 to 16 carbon atoms, for example decylglucoside (C9 / C11 alkyl). polyglucoside (1.4) such as the product sold under the name MYDOL 10 by the company Kao Chemicals, the product sold under the name PLANTAREN 2000 UP or PLANTACARE 2000 UP by the company Cognis, and the product sold under the name ORAMIX NS 10 by Seppic, caprylyl / capryl glucoside, such as the product marketed under the name ORAMIX CG 110 by the company Seppic, laurylglucoside as the products sold under the names PLANTAREN 1200 N and PLANTACARE 1200 by the company Cognis, and coco-glucoside as the product sold under the name PLANTACARE 818 / UP by the company Cognis; (2) among the anionic surfactants, the alkyl sulphates, alkyl ether sulphates and their salts, especially their sodium salts, such as the mixture of Sodium Laureth Sulfate / Magnesium Laureth Sulfate / Sodium Laureth-8 Sulfate / Magnesium Laureth-8 Sulfate, sold under the name Texapon ASV by the company Cognis; sodium lauryl ether sulphate (C12-14 70/30) (2.2 OE) sold under the names Sipon AOS 225 or TEXAPON N702 Pate by the company Cognis; ammonium lauryl ether sulfate (C12-14 70/30) (30E) sold under the name Sipon LEA 370 by Cognis; the ammonium (C12-C14) alkyl ether (9 OE) sold under the name RHODAPEX AB / 20 by the company Rhodia Chimie; (3) from amphoteric or zwitterionic surfactants, alkylamidoalkylamine derivatives such as N-disodium N-cocoyl-N-carboxymethoxyethyl-N-carboxymethylethylenediamine (INCI name: Disodium cocoampho-diacetate) marketed in saline aqueous solution under the name MIRANOL C2M CONC NP by Rhodia Chimie; N-cocoyl-N-hydroxyethyl-N-carboxymethylethylenediamine N-sodium (INCI name: sodium cocampho- acetate) and the mixture of coconut acid ethanolamides (INCI name: Cocamide DEA).

  The composition may also contain the usual additives in the cosmetic field, such as sequestering agents, perfumes, antioxidants, active agents, preservatives, dyestuffs (such as pigments and hydrophilic dyes), mineral fillers and / or organic fillers, exfoliating particles. Of course, those skilled in the art will take care to choose this or these optional additives and / or their amounts in such a way that the advantageous properties intrinsically attached to the composition according to the invention are not, or not substantially, altered by the addition or additions envisaged.

  The impregnation rate of the composition on the substrate may range, for example, from 10 to 1000% by weight, preferably from 50 to 500% by weight and better still from 50 to 300% by weight relative to the total weight of the substrate. The article of the invention finds its application especially for cleaning and removing makeup from the skin. It may constitute in particular a skin cleansing product, a product for removing make-up from the skin and an exfoliating product (scrubbing product) when exfoliating particles are added to the composition. It can optionally be a skin care product, being used both for the skin of the face and for the skin of the body to deposit oils on the body.

  The following example serves to illustrate the invention without being limiting in nature. The quantities indicated are in% by weight unless otherwise indicated, and they correspond, unless otherwise stated, to the quantity of raw material and not to the quantity of active ingredient. The names of the compounds used are indicated in INCI name, chemical name or trade name. 15

  Example: article for removing make-up from the skin

  The substrate used in the example is a nonwoven made with Kuralon K-II WN4 fibers based on polyvinyl alcohol. It was made by carding fibers with a length of about 40 to 50 mm and hydrolysis under high pressure jets. Its basis weight is 60 g / m2.

  The product is in the form of a 20 cm by 15 cm wipe, and the composition is impregnated to 300% by weight of the substrate. C12-15 alkyl benzoate 2-ethylhexyl palmitate Polyoxyethylene (20 OE) glyceryl triisostearate 8 Vaseline oil qs 100 Tocopherol acetate 0.5 Procedure: The composition was prepared by mixing the ingredients at room temperature. In use, the wipe is passed over the skin of the face to remove make-up, then it is moistened under tap water, and it is again passed on the face to clean the skin. This operation can be repeated several times. When the skin is clean, the wipe is removed by rubbing it under hot water with a temperature of at least 35 ° C.

  With this wipe, the skin is well cleaned and cleansed without being irritated. 30

Claims (9)

  A single-use cosmetic article, comprising: (1) at least one water-soluble substrate, in the form of a nonwoven formed by interlocking polyvinyl alcohol fibers, soluble in water; water at a temperature equal to or greater than 35 ° C., (2) an anhydrous cosmetic composition carried by the support, containing at least one oil and at least one nonionic emulsifying surfactant soluble in the oil or the mixture of oils, the article being substantially dry and being soluble in water at a temperature equal to or greater than 35 C.   2. Article according to claim 1, characterized in that the amount of oil (s) ranges from 50 to 99.5% by weight relative to the total weight of the composition.   3. Article according to claim 1 or 2, characterized in that the composition contains at least one oil selected from fatty acid esters, petroleum jelly and mixtures thereof. 20   4. Article according to any one of the preceding claims, characterized in that the amount of surfactant (s) ranges from 0.5 to 50% by weight relative to the total weight of the composition.   5. Article according to any of the preceding claims, characterized in that the emulsifying surfactant is selected from oxyethylenated fatty acid and sorbitan esters, oxyethylenated fatty acid and glyceryl esters and mixtures thereof.   6. Article according to any one of the preceding claims, characterized in that the impregnation rate of the composition on the substrate is from 50 to 1000 by weight relative to the weight of the substrate.   7. Article according to any one of the preceding claims, characterized in that it constitutes a product for cleaning the skin, a makeup remover of the skin, an exfoliating product, a skin care product.   8. Article according to any one of the preceding claims, characterized in that it is in the form of a wipe, a pad, a compress. 40   9. A cosmetic method for cleaning or removing makeup from the skin, comprising: - bringing an article into contact with any one of the preceding claims, with the surface of the skin, 45 -humidifcation of the article with cold water, contacting the moistened article with the skin, dissolving the article in water at a temperature of at least 35 ° C.