[go: up one dir, main page]

WO2012080969A2 - Procédé de photoprotection - Google Patents

Procédé de photoprotection Download PDF

Info

Publication number
WO2012080969A2
WO2012080969A2 PCT/IB2011/055675 IB2011055675W WO2012080969A2 WO 2012080969 A2 WO2012080969 A2 WO 2012080969A2 IB 2011055675 W IB2011055675 W IB 2011055675W WO 2012080969 A2 WO2012080969 A2 WO 2012080969A2
Authority
WO
WIPO (PCT)
Prior art keywords
film
zone
skin
photoprotective composition
photoprotective
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.)
Ceased
Application number
PCT/IB2011/055675
Other languages
English (en)
Other versions
WO2012080969A3 (fr
Inventor
Henri Samain
Didier Candau
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.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of WO2012080969A2 publication Critical patent/WO2012080969A2/fr
Publication of WO2012080969A3 publication Critical patent/WO2012080969A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
    • A61K8/585—Organosilicon compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/87—Application Devices; Containers; Packaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/88—Two- or multipart kits
    • A61K2800/884—Sequential application

Definitions

  • the present invention relates to protection against sunlight.
  • the skin is made up of parts which it is desirable to photoprotect more than others, for aesthetic reasons in particular. This is the case with moles, scars, particular zones of the skin on which light can for example cause irritation, spots which may or may not be reversible, redness...
  • the zones are small, such as for example with moles, the operation is difficult as it is necessary to use a product which remains on the zone in spite of movement and rubbing. For example, a shift of one millimetre, possibly as the result of rubbing of clothing on the skin, would affect the photoprotection of the zone.
  • Another possibility is to cover a portion of the skin around the zone to be protected with a product providing significant photoprotection. But then the result is not aesthetically pleasing as the portions thus photoprotected more than necessary do not tan while the other exposed portions do tan.
  • the purpose of the invention is to solve this problem and this is achieved by a process for photoprotection of at least one zone of the skin, comprising the stage consisting in photoprotecting the said zone with a film more extended than the latter, the photoprotection whereof is augmented in a region lying above the zone and less around that region.
  • the term "film” should be understood to mean an object, also termed a patch, of relatively small thickness, preferably flexible, of single or multilayered structure, of one or more materials, whether or not of essentially constant thickness.
  • the film can for example exhibit a local over-thickness above the zone to be photoprotected.
  • the film can have its final structure at the time when it is placed on the skin or adopt its final structure after having been positioned on the skin, for example by the application of a photoprotective composition onto the film.
  • film may also be used below both to refer to the finished object also termed a patch providing the function of differentiated photoprotection, but also to any intermediate substrate, for example made of thermoplastic materials having to undergo one or more modifications or an addition or removal of material in order to achieve the desired function.
  • the film preferably has a maximum thickness of between 1 and 200 ⁇ .
  • the film is preferably not perforated.
  • the film can for example adhere to the skin on an area greater by 50% at least than the extent of the zone to be protected, and better greater by 100% at least than that extent.
  • the film can for example occupy an area of at least 1 cm 2 and for example an area less than or equal to 10 cm 2 .
  • the method comprises the stage consisting of applying locally, onto a film exhibiting homogeneous filtration properties, a photoprotective composition, in such a manner as to cover only the said zone to be photoprotected,
  • the method comprises the stage consisting of applying onto the film a layer for mechanical protection of the photoprotective composition, for example another film, this mechanical protection layer preferably exhibiting spatially homogeneous UVA and/or UVB filtration properties,
  • the method comprises the stage consisting of locally treating the film to increase its capacity for retention of the photoprotective composition, for example by locally removing a detachable film giving access to an underlying porosity of a material of the film, and applying the said composition at least where the retention is augmented, it also being possible to obtain the capacity for retention, in one modification, by exposing the film to a light stimulus in accordance with an image corresponding to the zone to be protected, in order to create locally a photoprotective composition attachment function,
  • the method comprises the stage consisting of treating the film to locally modify its optical properties, in such a way as to modify its UVA and/or UVB radiation absorption properties, for example by making it locally transparent by addition of a composition that fills interstices of the film or by compression or local melting of the film, the method comprises the stage consisting of treating the film to avoid the accumulation on the film of a general photoprotection product, ending by covering the film and the adjacent skin.
  • the photoprotective composition is applied manually or automatically, the automatic application for example resulting from the use of a printer to print with the said composition onto a substrate of the film,
  • the photoprotective composition is applied when the film is in place or prior to its being put in place,
  • the method can include the illumination of the film under special lighting, for example under black light, and the photoprotective composition can contain a marker fluorescent under UV to enable visualisation of the zone of augmented photoprotection when the film is put in place, the method can comprise the acquisition of an image of the zone to be protected, for example for the purpose of printing of the zone of augmented photoprotection onto the film.
  • a further subject of the invention is a kit for the implementation of the above method comprising particularly within the same packaging device:
  • a film for application onto the skin or a film-forming composition capable of forming a film on the skin
  • the photoprotective composition has for example an SPF protection index evaluated by the SPF method greater than or equal to 30, preferably greater than 50 and a UVA protection factor such that the SPF/PPD ratio ⁇ 3.
  • the kit can comprise a protective layer for application onto the film once this is coated with the photoprotective composition, in particular a protective layer in the form of an adhesive protective film.
  • the kit can comprise on the surface of the film a detachable film for removal, for example by scraping or by means of a solvent or an energy stimulus, at the zone to be photoprotected, in order to uncover a region of film exhibiting absorption properties of a photoprotective composition augmented in comparison to the region covered by the detachable film.
  • the composition can contain a marker fluorescent under UV to facilitate the positioning of the film.
  • the photoprotective composition can be contained in an applicator, in particular operated by the user, or in a printer, which is for example used to print the film before it is put into place but which can also be adapted to print while being moved on the skin by the user.
  • the photoprotective composition and the film can be selected so as to react together when the photoprotective composition is applied onto the film, in order for example to form a filtering compound well attached to the film.
  • figure 1 represents, diagrammatically, an example of a film according to the invention, in place on the skin
  • figure 2 illustrates the stages of an example of the method according to the invention
  • FIG 4 illustrates the use of a mechanical protection layer on the film
  • figures 5A and 5B illustrate the use of a film containing a detachable protective layer
  • FIG. 6 represents an example of a kit for the implementation of the invention.
  • figure 7 represents, diagrammatically, an example of a tool capable of assisting the user to implement the invention.
  • a region of skin S having a zone to be protected P against UVA and/or UVB radiation, for example a scar or a mole, is represented.
  • a film 1 (also termed patch) is present on the skin, for example being glued to it by means of a hypoallergenic adhesive layer 4, which is for example initially present on the film.
  • the film 1 comprises a first portion 2 which extends beyond the zone to be protected P and a second portion 3 which extends entirely over the zone to be protected P.
  • the second portion 3 is more photoprotective than the first portion 2, for example by more than 50%, even perhaps more than 100%.
  • the protection factor of the second portion 3 is greater than 50%.
  • Portions 2 and 3 can both be transparent to wavelengths in the visible range, in order to reduce the visibility of the film.
  • the photoprotection conferred by the presence of the portion 3 can result from a radiation absorption phenomenon.
  • the first portion 2 may or may not be photoprotective.
  • the second portion 3 can have been made more photoprotective than the first in various ways, detailed below.
  • the film 1 comprises a single second part 3 but in variant embodiments of the invention, the film 1 has several portions of augmented photoprotection, situated respectively above several zones to be protected.
  • the film is not or only slightly photoprotective in the state in which it is placed on the region of skin containing the zone to be protected, at stage 10, then the film is modified at stage 20 so that it becomes more photoprotective on the zone to be protected.
  • a photoprotective compound 6 can be applied onto layer 5 of the film, on the zone to be photoprotected, as illustrated in figures 3A and 3B.
  • the material of the film can be transformed at the location of the zone to be protected, so that it becomes more photoprotective.
  • the film adheres to the skin is sufficiently transparent for the user to be able to demarcate the photoprotection by following the contour of the zone to be protected P and the film is therefore only made once the zone for photoprotection has been demarcated and it remains located entirely or almost entirely at the zone to be protected P.
  • the region of the film which is photoprotective and intended to photoprotect the zone to be protected keeps its photoprotection for several days, preferably being photostable and resistant to washing.
  • the film 1 is preferably created from synthetic or modified natural material(s), which are made to adhere to the skin, for example by means of an adhesive, which can be continuous or discontinuous, interacting with the film, or otherwise, before the positioning of the film.
  • the film is for example obtained by extrusion, coextrusion or lamination.
  • the film can also be obtained by drying or reaction of a fluid and spreadable composition.
  • the film can comprise or consist of a polymer dissolved in a solvent, a latex or a reactive compound such as a reactive monomer or oligomer or polymer.
  • the film can further be obtained by reaction between compounds (X) and (Y).
  • the compound (X) can be selected from the polyorganosiloxanes comprising siloxane units of the formula: E H f S i D , ,,, .
  • R represents a monovalent, linear or cyclic hydrocarbon group containing from 1 to 30 carbon atoms
  • R' represents:
  • R represents an alkyl radical containing from 1 to 10 carbon atoms or else a phenyl group, and preferably a methyl radical, and R' is a vinyl group.
  • the compound (Y) can be selected from the organosiloxanes containing at least one alkylhydrogenosiloxane unit of the following formula:
  • R represents a monovalent, linear or cyclic hydrocarbon group, containing from 1 to 30 carbon atoms or a phenyl group, and p is equal to 1 or 2,
  • radicals R represent a Ci-Cio alkyl group, preferably methyl
  • organosiloxanes Y contain at least two alkylhydrogenosiloxane units of the formula -(H 3 C)(H)Si-0- and possibly contain -(H ⁇ C ⁇ SiO- units.
  • the catalyst is preferably platinum or tin-based. Catalysts based on platinum deposited on a support of silica gel or charcoal powder (carbon), platinum chloride, platinum salts and chloroplatinic acids can for example be cited. Chloroplatinic acids in hexahydrate or anhydrous form, easily dispersible in organosilicon media, are preferably used.
  • Platinum complexes such as those based on chloroplatinic acid hexahydrate and divinyl tetramethyldisiloxane may also be mentioned.
  • As usable peroxides benzoyl peroxide, 2,4-dichlorobenzoyl peroxide and mixtures thereof may be mentioned.
  • a photoprotective composition containing or consisting of a photoprotective compound can be deposited on the film directly above the zone to be protected, as illustrated in figures 3A and 3B.
  • the film can in itself, before deposition of the photoprotective composition, have little or no photoprotective action, but can absorb the filtering compound, for example one or more sun filters, or one or more combinations of filters, filtering or diffusing particles.
  • the filtering compound can be deposited with a pen, a felt-tip or any other precise applicator, made for this purpose.
  • the film can also retain the filtering compound on its surface, without absorbing it.
  • the texture and material of the film and the chemistry and/or additives of the filtering compound are such that once the film and then the filtering compound are applied, the filtering compound remains incorporated in and/or on the film.
  • the filtering compound preferably does not spread despite the presence of water, sweat, washing water, sea water or common cosmetic or dermatological products. It is preferably also resistant to rubbing, such as that caused by clothes or sheets or rubbing on sand.
  • the texture and material of the film, and the chemistry and/or additives of the filtering compound are also preferably such that the filtering compound remains localised, in order to avoid migration phenomena into the interior or on the surface of the film, since it is desirable that the filtering compound filters only on the zone to be protected.
  • the film can filter or contain a filtering agent.
  • the method according to the invention can comprise the stages consisting of, as illustrated in figures 3A and 3B:
  • the film above the zone to be protected for example a mole
  • applying a filtering compound onto the portion of film situated opposite the zone can be in the fluid state during the application thereof onto the film.
  • the filtering compound is retained on the surface of the film, for example because of a particular surface texture, for example granular.
  • the film and the filtering compound can be selected to react together on application.
  • the film has at least one nucleophilic function (amino, hydroxyl, thiol).
  • the filtering compound has at least one electrophilic function (aldehyde, acid chloride).
  • the film and the filtering compound crosslink together, with or without an external energy input, for example light, or the aid of a third compound, for example a photo -initiator or an oxidant.
  • the film can be absorbent, for example because of the presence of fibrous, porous material, the film containing for example a non-woven substrate, and the filtering compound can be applied at the location of the zone to be protected.
  • the film can then be left as such or a protective layer 8, preventing the filtering compound from emerging and other filtering compounds from penetrating through the surface of the film outside the zone to be protected, can be deposited onto the film as illustrated in figure 4.
  • the film is transformed so that locally it loses its absorption capacity.
  • an oily compound which will crosslink is deposited outside the zone to be protected, or the film is heated to make it lose its porosity.
  • Such transformation of the film can take place once the filtering compound has been applied onto the film above the zone to be protected or before applying the filtering compound onto the film.
  • the material for the film and the filtering compound or the additives used, for example the solvents, are preferably selected so as to obtain good absorption of the filtering compound, preferably selective absorption of the filtering compound, so that other components are absorbed little or not at all.
  • the film can be made locally absorbent by treatment of the region lying directly above the zone to be protected. Then the filtering compound is applied onto the whole of the surface of the film. Only the section of film next to the zone to be protected then preferentially absorbs the filtering compound.
  • the method according to the invention can also include the stage consisting of preparing the film at the zone to be protected so that subsequently, when the user applies the filtering compound on the beach, for example, the film in the area of the zone to be protected fills with filtering product and thus creates augmented photoprotection.
  • the film can be prepared for this purpose by means of heat or other energy, mechanical or otherwise, or the application of a reagent or a solvent. In particular, the solvent used can impart porosity to the film material. A combination of these operations is also possible.
  • the filtering compound is deposited onto the portion of the film opposite the zone to be protected. Then a protective layer is applied to the whole as illustrated in figure 4 so that with or without reaction this layer immobilises the filtering compound.
  • the film can be made such that it allows vertical diffusion (i.e. in depth) of the filtering compound but little or none in the horizontal direction (i.e. in the plane of the film).
  • the film can contain or be made up of a network of vertically oriented tubes or fibres.
  • the film contains cavities and the film is covered with a protective layer 9 blocking access to the cavities.
  • the protective layer 9 is scratched at the site of the zone to be protected.
  • Precise localisation of the filtering compound once the film is in place can result from precise application of the filtering compound or from adequate preparation of the film so that it preferentially absorbs the filtering compound at the zone.
  • a pen, felt-tip or other fine applicator can be used, or an electronically assisted system, for example a system which combines image acquisition or colour identification of the zone and deposition of a product, for example the filtering compound or a compound preparing the film.
  • a mobile print head or a controllable multi- nozzle print head can be used.
  • An assisted system can also be used which combines image acquisition or colour identification of the zone with physical preparation, for example by exposure of the film to the light and/or heat, or a treatment of the product deposited.
  • the system illuminates the film with a UV source in order to create reactive radicals.
  • the filtering compound preferentially reacts on the zone where the reactive radicals are present on the region intended to be superposed on the zone to be protected.
  • the system illuminates the film and the filtering compound with a UV source in order to create an insolubilising crosslinking of the filtering compound and/or of the film and/or of the filtering compound with the film.
  • the advantage of the assisted systems is that the operation can more easily be performed alone, in particular with zones of the skin that are difficult to access, particularly the back, buttocks, backs of legs, top of the head, neck, and behind the arms.
  • the film is transformed at the zone to be protected in order to make it photoprotective without extemporaneous input of a filtering compound.
  • a physical or physico-chemical transformation of the material of the film is performed.
  • a film is made containing a filtering compound in the form of small particles, for example crystals. This distribution of particles only produces a weak photoprotective effect.
  • the portion of the film opposite the zone is subjected to a treatment which transforms these particles and locally increases photoprotection.
  • This treatment consists for example of exposure to energetic radiation (light, ultrasound ...) or the direct application of a hot element, which changes the particulate appearance and transforms the initial material totally or in part into a final material in which the photoprotective compound is better distributed.
  • a liquid can also be applied, which gives a similar result to that of a solvent by locally dissolving a filtering compound.
  • the film can also be rubbed to achieve a similar effect, through the use of particles which can release the active filtering compound when they are crushed.
  • a chemical transformation of the material can also be effected by applying a non-photoprotective compound or by treating it with a physical agent (light, IR, heat ...), capable of modifying the photoprotective capacities of the film.
  • a non-photoprotective compound or by treating it with a physical agent (light, IR, heat ...), capable of modifying the photoprotective capacities of the film.
  • a physical agent for example, compounds which are esters of benzoic acid, such as those described in WO 2006/100225, which under exposure to UV are transformed by a Fries reaction into a UVB and UVA chromophore can be used.
  • the film can be "negatively" treated on the portion situated outside the zone to be protected in order to eliminate or lessen its filtering ability, or to make it lose its capacity to absorb or react with a filtering compound applied onto the film later.
  • the film can be multilayered, so that, in particular, the photoprotective compound cannot migrate towards the skin. Furthermore, the film can contain compounds for treating the skin, for example to hydrate it.
  • a computerised expert system can be provided, according to one embodiment of the invention, to facilitate the selection of the film suitable for the portion of skin treated.
  • the system is informed of the skin zone and from this the system then deduces the correct film to be used, that most suitable in terms of colour, strength of adhesion, elasticity, thickness, strength of the upper surface and porosity.
  • the computerised system favours especially fine and transparent films. For zones which are not very visible but subject to rubbing (shoulders, feet...), the system favours stronger films, even if they are more visible.
  • the computerised system can also be informed concerning the number, shape and area of the zones to be treated and suggest the film accordingly so as to minimise its area while ensuring adequate adhesion.
  • the system used to assist the user can also be configured to cut the film, if required.
  • the application of the film can be facilitated by the use of a magnifying optical system and/or an image transmission system, whether or not electronically assisted.
  • a magnifying optical system comprising a platform to be placed on the skin, fitted with a magnifying glass or a camera maintained at a given distance from the skin.
  • a film application tool can be introduced between the magnifying glass and the skin.
  • a photoprotective composition is used containing an agent making it possible to identify it, which is only visible under certain conditions, by fluorescence for example, or is visible owing to its appearance under ambient lighting, because of its colour or its cloudy appearance.
  • the agent can persist over time, or disappear over time, for example naturally or through washing.
  • films with no photoprotective composition can be applied onto all the zones to be protected and the films subsequently treated one by one by application of the photoprotective composition onto them, without fear of forgetting to treat a film or fear of treating the same film twice.
  • a UV illumination device which shows whether a portion of the film has already been treated can be used.
  • a platform fitted with a magnifying glass or camera and two forms of illumination can be used, so as to have illumination with visible light for the treatment of the film, and UV illumination for checking the correct treatment of the film for deposition of the filtering compound thereon and to ensure correct positioning of the filtering compound above the zone to be protected.
  • An optical or automated system can be used to verify that the film is present, correctly positioned opposite the zone to be protected and/or to verify that the photo- protective power of the film opposite the zone is sufficient.
  • a system can be used which scans the skin, particularly under far UV light or a Wood's lamp, and assesses the correct location of each film by comparing the positioning and the level of filtration compared to what they were at the time of application. Such a system can thus warn when a film must be replaced or reactivated, or alert that a film will soon have to be replaced or reactivated.
  • the films can be changed or simply reactivated.
  • filtering compound can be reapplied above the zone to be protected. Any protective layer can be removed, and the compound then reapplied.
  • a new film according to the invention can also be added onto a film which is in place, and if necessary all or some of the stages of the method according to the invention can be repeated.
  • An automatic system can be used to effect the reactivation of the film.
  • such a system can be used to localise the section of the film having to exhibit the augmented photoprotection and effect the reactivation on the localised zone situated above the zone to be protected.
  • One or more marks making it possible to locate the film or films for their removal can be used.
  • Compounds dissolving or softening the adhesive can be used for the removal of the film or films.
  • the skin under the area of the film, outside the zone to be protected P is neither more nor less photoprotected than the rest of the skin. Otherwise this would create regions of skin which are not aesthetically pleasing, being more or less tanned than the rest of the skin.
  • the film can thus accept a general filtering compound which is part of a general photoprotection product which is moreover used on the body or face.
  • the general filtering compound and the film are selected so that the general filtering compound disappears little by little or during washing, at the same rate as its disappearance when it is applied onto the skin. In this way, accumulation of the general filtering compound in the film and the surface of the film daily becoming more strongly filtering are avoided.
  • the filtration by the general filtering compound on the surface of the film remains at the same filtering level as that provided on the rest of the skin. Only the area opposite the zone to be protected P permanently retains its filtration power at a high level.
  • the film and its possible means for effecting the augmented photoprotection and the general filtering compound are preferably provided as a kit, for example within a single pack or are recommended to be used in combination. This allows easier regulation of the wear properties of the filters so as to have the best performance on absorption and desorption, in order in particular to ensure that the general filtering compound does not accumulate more in the film than in the skin.
  • kit 30 which contains, within the same pack 31, a container 32 containing the general photoprotection product, one or more films 1 and an applicator 33 to create an area of augmented photoprotection on the films 1 is shown by way of example in figure 6.
  • the augmented photoprotection may not exhibit the same balance as regards the types of UV stopped as the photoprotection provided by the general photoprotection product used to protect the rest of the body.
  • the augmented photoprotection protects against UVB and UVA, and even other wavelengths, and more preferably protects almost totally against UVB.
  • the invention can be implemented alone or with the help of another person, for example in a beauty salon.
  • a tool 40 is used to scan the skin (for acquisition of the 2D image of the skin) containing one or more zones P requiring augmented photoprotection.
  • this tool makes it possible to produce a film 1 whereof at least one part 3 is made photoprotective such that when the film is applied onto the skin, the part made photoprotective covers the zone to be protected.
  • the non-photoprotective zone 2 does not cover the zone to be protected, and serves as a foundation for better wear protection over time, according to the invention.
  • the film is partially photoprotective and therefore does not fit the contour of the zone to be protected P.
  • the photoprotective part of the film fits the outline of the zone to be protected.
  • the film goes beyond the zone to be protected with specific shapes.
  • the width of the non-photoprotective zone is constant.
  • an image acquisition tool 41 such as a CCD camera
  • the identification of the zones can be effected automatically, using a software method for image processing and pattern recognition known in the prior art;
  • a printer 42 which deposits a photoprotective compound following the outline of the zones to be protected.
  • an apparatus can be used which, for example by heating or other physical treatment renders certain areas of the film photoprotective, in accordance with the outline of the zone.
  • the tool may be made such as to apply the film onto the zone of the skin to be protected, in a suitable manner such that the photoprotective portion or portions coincide with the zone or zones to be protected.
  • it can be based on the position of the zone or zones to be protected or other characteristic points, whether natural or deposited onto the skin beforehand. It may use a guiding system and/or system for movement and for transformation of the shape of the film, for example by homothetic stretching, so as to apply the photoprotective part of the film with the best possible fit.
  • the tool incorporates all the components for performing two or three of the operations listed above.
  • the three operations are for example accomplished according to a sequential programme.
  • the operations are performed automatically and can be monitored by a specialist who may be present or remote.
  • the tool can select the film and photoprotective composition most suitable for each zone.
  • the tool can be moved manually across the skin and perform the above operations as it goes. For example, the tool is first moved across the whole of the skin. During this phase, it memorises the zones to be treated. Then the tool produces all the necessary films and delivers them all at once, for example in the form of one or more adhesive sheets, or one by one. Then the user applies the films onto the zones to be treated.
  • the tool is first moved across the whole of the skin, memorises the zone or zones to be treated and produces the film or films without delivering them. Then the tool is again passed over the skin. The tool rescans the skin and, whether or not applying it, delivers the film corresponding to each zone to be protected which it has identified.
  • Some operations can be done manually, or be mechanically and/or electronically assisted.
  • the scanning can be done manually, for example using a tracing medium onto which the contours of the zones are transferred by transparency.
  • the tracing medium is then transferred into the tool, which can determine the shape of the zones to be protected and produce the film or films.
  • the scan can be done in a user-assisted manner; for example, the skin is scanned with a camera or a photographic apparatus which transfers the image onto a screen.
  • the user identifies on the screen the zone or zones to be protected, or defines the contours of the zones to be protected using a mouse.
  • the production of the film can be manual; for example, the user places the photoprotective compound onto the desired location by hand.
  • the production of the film can also be electronically assisted.
  • the tool used to assist the user prints a coloured contour or relief of the zone to be treated onto the film.
  • the user places the photoprotective compound onto the film by hand, following the contour.
  • the film can be applied manually; for this, the user attempts to make the photoprotective region of the film coincide as well as possible with the skin in order to well cover the zone to be protected.
  • the application of the film can also be assisted; for example, the tool used deposits onto the film and/or onto the skin at least one indicator which allows the user then to deposit the film quickly and/or precisely onto the skin.
  • the tool forms points on the skin, for example four points, and on the film, which will allow the user, by making them coincide, to obtain a perfect fit.
  • the points or other markers can have a different colour and/or shape in order to assist the placing of the film.
  • any exact application technique can be used to apply the photoprotective composition onto the film, in particular using the techniques of ink-jet, laser, sublimation, contact or lithographic printers or photocopiers.
  • the film can be post -treated in order to stabilise or improve the wear properties of the photoprotective compound on or in the film; in particular, the method according to the invention can include the implementation of a crosslinking or application treatment of a protective layer on the film.
  • the film can have different shapes.
  • a tool is used which cuts the film according to a predefined shape.
  • a marker for example a dotted line, can also be made to appear on the film, enabling manual or assisted cutting of the film.
  • a fully integrated system can be used which performs both the scan and the printing of the film with a filtering compound plus the application of the film.
  • this performs the scan, application of the film, and then the printing of the filtering compound.
  • the system performs the scan and the deposition of the filtering compound, then the application of a mechanical protection layer onto the film.
  • a system which operates in two stages can also be provided.
  • the user places a film onto the skin then positions a device which performs two operations: the scanning and the deposition of a filtering compound onto the film above the zone to be protected.
  • 2 cm by 2 cm transparent films are produced by cutting up an adhesive film transparent to UVA and UVB.
  • a film such as those described in the patent applications WO 2009/041122 and WO 2009/041121 can be used.
  • a guar gum composition (Jaguar C13S, 1.5% by weight in water) is deposited onto the film. It is allowed to dry and a transparent film which can be placed onto the skin is thus obtained. An area of skin containing two moles is selected. Because of its transparency, the two moles are visible through the film.
  • This composition is applied precisely, using a magnifying glass, onto the film at the location of the zone to be protected.
  • a transparent mechanical protection layer consisting of the same adhesive film is then applied onto the whole.
  • the zone to be protected is thus provided with augmented photoprotection and the skin outside the protected zone can tan normally.
  • a sheet of precut stickers is taken.
  • An adhesive transparent film onto which a composition of guar gum (Jaguar C13S, 1.5% in water) and 0.2%> by weight of fluorescent compound SP 3632 has previously been deposited is placed on each sticker.
  • the device is programmed so that, starting from an acquired image of the skin, it creates a JPEG image file where the identified zones are in black and the other zones are in white.
  • the device controls the printer to print the file image with the photoprotective composition onto one of the stickers, in the true proportions.
  • the user removes the sticker from the sheet after printing, then, coming close to the skin, unsticks the film from the sticker.
  • the user positions the film on the skin, using the fluorescence to help match the photoprotective section with the zone.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Dermatology (AREA)
  • Materials For Medical Uses (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne un procédé de photoprotection d'une zone (P) de la peau (S), qui comprend la protection de ladite zone (P) avec un film (1) dont l'étendue est plus grande que celle de ladite zone. La photoprotection est ainsi augmentée dans une région (3) se situant sur la zone et moins importante autour de cette région.
PCT/IB2011/055675 2010-12-15 2011-12-14 Procédé de photoprotection Ceased WO2012080969A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR1060547A FR2968929A1 (fr) 2010-12-15 2010-12-15 Procede de photoprotection
FR1060547 2010-12-15
US201061425600P 2010-12-21 2010-12-21
US61/425,600 2010-12-21

Publications (2)

Publication Number Publication Date
WO2012080969A2 true WO2012080969A2 (fr) 2012-06-21
WO2012080969A3 WO2012080969A3 (fr) 2012-11-29

Family

ID=44201071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/055675 Ceased WO2012080969A2 (fr) 2010-12-15 2011-12-14 Procédé de photoprotection

Country Status (2)

Country Link
FR (1) FR2968929A1 (fr)
WO (1) WO2012080969A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021514B1 (nl) * 2012-12-12 2015-12-04 ZIEMBICKI, Yoeri Werkwijze voor de cosmetische behandeling van donkere huidvlekken, product en verpakking voor een product en hulpmiddelen voor de aanwending in deze werkwijze

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29517506U1 (de) 1995-11-04 1996-06-05 Pirro, Michael, 66424 Homburg Sonnenschutzpflaster selbstklebend
WO2005027859A2 (fr) 2003-09-23 2005-03-31 Reed Gamble Timbre
WO2006100225A2 (fr) 2005-03-21 2006-09-28 Ferrer Internacional, S. A. Composes d'ester d'acide benzoique, compositions, utilisations et methodes associes
GB2444906A (en) 2006-12-20 2008-06-25 Paul Oakley UV protective mole patch
WO2009041121A1 (fr) 2007-09-28 2009-04-02 Yugen Kaisha Kazki Reiko Matériau de timbre auxiliaire cosmétique et procédé de cosmétisation avec celui-ci
FR2933614A1 (fr) 2008-07-10 2010-01-15 Oreal Kit de protection solaire.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069014A (ja) * 1983-09-27 1985-04-19 Nitto Electric Ind Co Ltd 皮膚疾患治療用貼付剤
US20070038270A1 (en) * 2005-07-05 2007-02-15 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Multi step photopatterning of skin
WO2008113109A1 (fr) * 2007-03-16 2008-09-25 Australian Photobiology Testing Facility Pty Limited (Aptf) Substrat artificiel
FR2929522B1 (fr) * 2008-04-04 2011-02-11 Peters Surgical Composition fluide et transparente pour la formation de pansements pelliculaires protecteurs contre les radiations solaires
DE102009005143A1 (de) * 2009-01-15 2010-07-22 Beiersdorf Ag Narbenabdeckung mit UV-Schutz
GB2469486A (en) * 2009-04-15 2010-10-20 Reece Channing Page Adhesive plaster with UV reflective patch
US9381383B2 (en) * 2009-10-22 2016-07-05 L'oreal Photoprotective compositions and films, and a preparation method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29517506U1 (de) 1995-11-04 1996-06-05 Pirro, Michael, 66424 Homburg Sonnenschutzpflaster selbstklebend
WO2005027859A2 (fr) 2003-09-23 2005-03-31 Reed Gamble Timbre
WO2006100225A2 (fr) 2005-03-21 2006-09-28 Ferrer Internacional, S. A. Composes d'ester d'acide benzoique, compositions, utilisations et methodes associes
GB2444906A (en) 2006-12-20 2008-06-25 Paul Oakley UV protective mole patch
WO2009041121A1 (fr) 2007-09-28 2009-04-02 Yugen Kaisha Kazki Reiko Matériau de timbre auxiliaire cosmétique et procédé de cosmétisation avec celui-ci
WO2009041122A1 (fr) 2007-09-28 2009-04-02 Nichiban Co., Ltd. Matériau de timbre
FR2933614A1 (fr) 2008-07-10 2010-01-15 Oreal Kit de protection solaire.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021514B1 (nl) * 2012-12-12 2015-12-04 ZIEMBICKI, Yoeri Werkwijze voor de cosmetische behandeling van donkere huidvlekken, product en verpakking voor een product en hulpmiddelen voor de aanwending in deze werkwijze

Also Published As

Publication number Publication date
WO2012080969A3 (fr) 2012-11-29
FR2968929A1 (fr) 2012-06-22

Similar Documents

Publication Publication Date Title
ES2694783T3 (es) Método de fabricación de artículos cosméticos personalizados, especialmente uñas postizas, y artículos así producidos
CA3024544C (fr) Appareil et procedes de modification de surfaces keratiniques
CN104921959B (zh) 皮肤贴附用片材制作方法、美容方法及皮肤贴附用片材
CN101810397B (zh) 光学剂用于保护获得的效果的用光敏化妆进行化妆的方法
RU2440091C2 (ru) Способ постепенного нанесения светочувствительного макияжа
JP2012518457A (ja) 処理対象ゾーンへの画像の投射を含む化粧的な処理方法
MXPA02006368A (es) Tisu tratado con locion unida a la capa y metodo para hacer el mismo.
JP2012518629A (ja) すでに呈色状態にあるフォトクロミック組成物を用いて感光性メイクアップでメイクアップをする方法
WO2010086901A1 (fr) Structure stratifiée pour usage cosmétique
JP2012518829A (ja) アドレス可能なマトリクス光源を用いてメイクアップする方法
JPH11253230A (ja) 皮膚から不潔な物を除去する除去方法
BR112014015283B1 (pt) Conjunto, kit, e processo para maquiar a pele
EP3154642A2 (fr) Composition, appareil et procédés de traitement pour la modification de surfaces kératiniques
RU2447883C2 (ru) Способ нанесения светочувствительного макияжа и композиция для светочувствительного макияжа
JP2010195790A (ja) ベース層を塗ることにより感光性メーキャップでメーキャップする方法及びかかる方法を実施するためのキット
WO2012080969A2 (fr) Procédé de photoprotection
MX2014003825A (es) Proceso de tratamiento de cabello que provee colores difuminados por difraccion de la luz.
ES2392136T3 (es) Procedimiento de tratamiento cosmético que comprende la fotopolimerización de una composición
WO2016100119A1 (fr) Feuilles cosmétiques couvrant la peau et leur procédé de préparation
AU753856B2 (en) Sheet-form pack and method of production thereof and method of use thereof
US10588831B2 (en) Lightening process using a substrate bearing at least one oxidizing agent and an aqueous composition
KR100827739B1 (ko) 공예품의 개금 및 채화방법
WO2021132260A1 (fr) Procédé de fabrication de non-tissé coloré
TH29370A (th) การขจัดรอยย่น
ITGE20100112A1 (it) Cerotto perfezionato

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11807777

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct app. not ent. europ. phase

Ref document number: 11807777

Country of ref document: EP

Kind code of ref document: A2