COSMETIC TREATMENT OF KERATIN FIBRES

Abstract

The present invention is directed towards a cosmetic assembly, of use for the treatment of keratin fibres, comprising a cosmetic composition having a melting point of between 40° C. and 120° C., and comprising at least 15% by weight of meltable compound(s), relative to the total weight of the composition; and a device (1) comprising a mould (2), the mould (2) comprising at least one cavity (5), into which or each of which at least one of said fibres can be at least partially introduced, for the purposes of moulding said composition onto at least one part of said fibre(s) present in the cavity or cavities (5). The present invention is also directed towards a process for cosmetic treatment of one or more keratin fibres.

Claims

1-32. (canceled)

33. Cosmetic assembly, of use for the treatment of keratin fibres, comprising: a cosmetic composition having a melting point of between 40° C. and 120° C., and comprising at least 15% by weight of meltable compound(s), relative to the total weight of the composition; and a device comprising a mould, the mould comprising at least one cavity, into which or each of which at least one of said fibres can be at least partially introduced for the purposes of moulding said composition onto at least one part of said fibre(s) present in the cavity or cavities.

34. Assembly according to claim 33, wherein the cosmetic composition has a melting point of between 40° C. and 100° C.

35. Assembly according to claim 33, wherein the cosmetic composition is chosen such that, when said composition is heated to the temperature Tc, the ratio of the heat consumed between −20° C. and Tc by the composition to the total heat consumed Δh between −20° C. and 120° C. is greater than 0.4.

36. Assembly according to claim 33, wherein the meltable compound(s) is (are) chosen from thermoplastic polymers, waxes, semi-crystalline polymers, and mixtures thereof.

37. Assembly according to claim 33, wherein the cosmetic composition has a solids content of greater than or equal to 42% by weight, relative to the total weight of the composition, said composition being fluid or solid at 25° C. and at 1 atm.

38. Assembly according to claim 33, wherein the cosmetic composition is solid and in that it comprises from 40% to 100% by weight of meltable compound(s), relative to the total weight of the composition.

39. Assembly according to claim 33, wherein the cosmetic composition is fluid and comprises from 15% to 60% by weight of meltable compound(s), relative to the total weight of the composition.

40. Assembly according to claim 33, wherein the cosmetic composition also comprises at least one colorant.

41. Assembly according to claim 33, wherein the cosmetic composition comprises less than 20% of volatile solvent(s).

42. Assembly according to claim 33, wherein the cosmetic composition is aqueous or anhydrous.

43. Assembly according to claim 33, wherein the mould comprises at least two cavities.

44. Assembly according to claim 33, wherein the cavity or cavities is (are) formed by bringing two jaws together.

45. Assembly according to claim 33, wherein the device comprises at least one heating element which serves to increase the temperature of the cosmetic composition, the increase in the temperature inducing a change of state of the composition.

46. Assembly according to claim 33, wherein the device comprises at least one system for admitting material, which serves to introduce a part or all of the cosmetic composition into the mould cavity or cavities.

47. Assembly according to claim 33, wherein the heating element is at least one light element or microwave element, which serves to increase the temperature of the cosmetic composition.

48. Assembly according to claim 33, wherein the mould is disposable.

49. Assembly according to claim 33, wherein the device comprises one or more additional fibres, the cosmetic composition ensuring the attachment of the additional fibre(s) to the keratin fibre(s), with or without axial overlap between the two types of fibres.

50. Assembly according to claim 33, each cavity constituting a space which is substantially entirely closed, in the absence of keratin fibre.

51. Assembly according to claim 33, each cavity delimiting a space which is closed with the exception of one end via which the keratin fibre(s) which are at least partially introduced into the cavity communicate with the exterior.

52. Process for cosmetic treatment of one or more keratin fibres, comprising at least the step consisting in moulding a cosmetic composition having a melting point of between 40° C. and 120° C., and comprising at least 15% by weight of meltable compound(s), relative to the total weight of the composition, onto at least one part of said fibres, by means of one or more cavities, of a mould, into which said fibres are at least partially introduced.

53. Process according to claim 52, wherein said fibres are, optionally individually, at least partially introduced into said cavities.

54. Process according to claim 52, wherein the cosmetic composition is brought to a temperature greater than or equal to its melting point.

55. Process according to claim 52, wherein the cavity or cavities of the mould are formed by bringing together two jaws.

56. Process according to claim 52, wherein the cosmetic composition is moulded onto at least one part of at least one of said keratin fibres and of at least one additional fibre, the cosmetic composition ensuring the attachment of the additional fibre(s) to the keratin fibre(s), with or without axial overlap between the two types of fibres.

57. A molding process of a material in at least one cavity of a mould, for the purposes of depositing on keratin fibres, comprising at least a step of application of said mould to said fibres, wherein the material consists in a cosmetic composition having a melting point of between 40° C. and 120° C., and comprising at least 15% by weight of meltable compound(s), relative to the total weight of the composition.

Description

[0292] Other features, advantages and methods of application of the particles and of the preparation process according to the invention will emerge more clearly from the exemplary embodiments of the invention and from the examination of the appended figures, presented by way of non-limiting illustration of the field of the invention and in which:

[0293] FIGS. 1A and 1B represent an example of an assembly according to the invention, respectively with the jaws of the mould closed in moulding configuration and open;

[0294] FIG. 2 represents in isolation one of the parts of the mould of FIGS. 1A and 1B:

[0295] FIG. 3 represents, in section along III of FIG. 2, a part of the mould of this figure;

[0296] FIGS. 4A and 4B represent another example of an assembly according to the invention, in the form of a clamp, respectively with the jaws of the mould closed in moulding configuration and open;

[0297] FIG. 5 illustrates the deposit of composition obtained on eyelashes after cosmetic treatment;

[0298] FIGS. 6A and 6B, 8A and 8B, 10 and 11 represent other examples of devices according to the invention in the form of a clamp, the moulds not being represented, FIGS. 6A and 6B illustrating the same example of a device respectively with the jaws of the mould closed and open, FIGS. 8A and 8B illustrating the same example of a device respectively with the jaws of the mould closed and open;

[0299] FIGS. 7A and 7B represent two examples of a mould before closing;

[0300] FIG. 9 represents the device from FIG. 8A, the housings having been dismantled;

[0301] FIGS. 12A and 12B represent various steps for using an example of a demoulding system;

[0302] FIG. 13 represents another example of a mould before closing;

[0303] FIG. 14 represents an example of a part of a device equipped with blades;

[0304] FIGS. 15A and 15B represent two examples of connection of an additional fibre to an eyelash using a composition according to the invention;

[0305] FIGS. 16A and 16B illustrate an example of attachment of additional fibres to eyelashes;

[0306] FIGS. 17A to 17D represent, in section, examples of mould cavity shape;

[0307] FIGS. 18A and 18B represent respectively a cavity comprising an eyelash and a cavity comprising several eyelashes;

[0308] FIGS. 19A to 19E represent, in section, examples of arrangements of the composition according to the invention before moulding, within a mould cavity into which an eyelash is introduced;

[0309] FIG. 20 represents an example of an injection channel communicating with mould cavities;

[0310] FIGS. 21A and 21B represent, very diagrammatically, respectively a device according to the invention comprising a heating element and a device according to the invention placed in proximity to a heating element;

[0311] FIGS. 22A and 22B represent, very diagrammatically, respectively a device according to the invention comprising a light element and a device according to the invention placed in proximity to a light element.

[0312] FIGS. 1A and 1B represent an example of an assembly according to the invention comprising a device (1) and a cosmetic composition (6) for cosmetic treatment of eyelashes.

[0313] The device (1) comprises a mould (2) which has two parts (2a) and (2b). The mould (2) preferably comprises an elastomeric material. The two parts (2a) and (2b) of the mould (2) each have a thickness e of approximately 2 mm for example.

[0314] The two parts (2a) and (2b) of the mould (2) comprise imprints (4), in the form of grooves of elongated shape. Each part (2a, 2b) comprises, for example, as illustrated, 17 imprints (4), for example of width 1 of approximately 0.5 mm, of length L of approximately 2.5 cm and of approximately semicircular cross section. The imprints (4) of each part (2a, 2b) of the mould (2) are preferably substantially parallel to one another. The imprints are also, preferably as illustrated, evenly spaced out, according to a step p of 1.5 mm, centre to centre.

[0315] The device (1) comprises two jaws (3a) and (3b) which carry respectively the mould parts (2a) and (2b).

[0316] The two parts of the mould (2) and the jaws (3a) and (3b) may have additional reliefs, so as to be able to accurately place the two parts (2a, 2b) of the mould (2) on each jaw (3a, 3b).

[0317] The lower jaw (3b) comprises, in the example under consideration, a temperature-controlled heating element (30).

[0318] The lower jaw (3b) is fixed, whereas the upper jaw (3a) slides vertically by means of a guidance system (80).

[0319] When the jaws (3a) and (3b) are closed against one another, as represented in FIG. 1A, cavities (5) are formed by virtue of the imprints (4), which are superimposed in pairs.

[0320] In the example under consideration, 17 cavities of elongated shape, having a width 1 of approximately 0.5 mm, a length L of approximately 2.5 cm and an approximately circular cross section, which are substantially parallel to one another and evenly spaced out, according to a step p of 1.5 mm, centre to centre, are thus created.

[0321] The cavities (5) are closed on the sides and open out to the exterior, on the side where the eyelashes are introduced, via a front opening through which the eyelashes are introduced. The cavities are closed at their rear end.

[0322] To use the device (1), the cosmetic composition (6) is, for example, placed in imprints (4) of the part (2b) of the mould (2), mounted on the lower jaw, before introduction of the eyelashes. The composition (6) is a composition as previously described.

[0323] The eyelashes are introduced into the imprints (4) of the mould (2) of the device (1) in its open form (FIG. 1B), then the jaws (3a, 3b) are closed so as to hold the eyelashes in the cavities (5).

[0324] The heating element (30) brings the composition (6) to a temperature above its melting point, in such a way that the composition (6) takes, in the fluid state, the shape of the imprints (4). The moulding of the composition onto the eyelashes is carried out in situ in the cavities (5) of the mould (2).

[0325] Then, the heating element (30) stops heating the composition and said composition is left to cool.

[0326] The jaws (3a, 3b) are opened and the eyelashes are withdrawn when the temperature of the composition (6) has come back down below its melting point. The device (1) can be produced such that the closing of the jaws (3a) and (3b) automatically triggers the heating of the composition (6), and so that the heating is automatically stopped when the desired temperature is reached.

[0327] The opening of the jaws (3a) and (3b) can take place automatically, as appropriate. As a variant, a sound or light signal can indicate that the jaws can be opened.

[0328] FIGS. 2 and 3 represent more particularly the part (2b) of the mould (2) of FIGS. 1A and 1B.

[0329] It is seen that the part (2b) can be curved along the longitudinal direction M of the imprints (4), in order to reproduce the curved shape of the eyelashes, the radius of curvature preferably being between 15 and 25 mm.

[0330] The edge of the part (2b) intended to come into contact with the eyelid may have a rounded shape, concave towards the exterior, with a radius of curvature of preferably between 15 and 25 mm.

[0331] The device (1) may, according to one implementation variant of the invention, be in the form of a clamp, as represented in FIGS. 4A and 4B.

[0332] Like the device represented in FIGS. 1A and 1B, this device in the form of a clamp comprises a mould (2) in two parts (2a) and (2b). The mould (2) preferably comprises an elastomeric material. The two parts (2a) and (2b) of the mould (2) each have, for example, a thickness e of approximately 2 mm. The two parts (2a) and (2b) of the mould (2) comprise imprints (4), in the form of grooves of elongated shape. The device (1) comprises two jaws (3a) and (3b) which carry respectively the mould parts (2a) and (2b).

[0333] Each part (2a, 2b) comprises, for example, 15 imprints (4), for example having a width 1 of approximately 0.5 mm, a length L of approximately 2.5 cm, and a decreasing semicircular cross section so as to give the eyelashes, once moulded with the composition (6), a tapered appearance. The imprints (4) of each part (2a, 2b) of the mould (2) are preferably, as illustrated, substantially parallel to one another. The imprints are evenly spaced out, according to a step p of 1.5 mm, centre to centre.

[0334] The mould (2a, 2b) may have a radius of curvature along the direction M of FIG. 4B of between 15 and 25 mm in order to follow the shape of the eyelashes. The edge of the part (2b) intended to come into contact with the eyelid may have a rounded shape, concave towards the exterior, with a radius of curvature of preferably between 15 and 25 mm.

[0335] The edge of the jaws (3a, 3b) and of the mould (2a, 2b) intended to come into contact with the eyelid may have a rounded shape, concave towards the exterior, in particular circular, the edge of the eyelid describing, to a first approximation, an arc of a circle.

[0336] When the jaws are closed against one another, as represented in FIG. 4A, cavities (5) are formed by virtue of the imprints (4), which are superimposed in pairs. Fifteen cavities (5) of elongated shape, having a width 1 of approximately 0.5 mm, a length L of approximately 2.5 cm and a circular cross section of decreasing diameter as the distance from the opening for introducing the eyelashes increases, which are substantially parallel to one another and evenly spaced out, according to a step p of 1.5 mm, centre to centre, are thus, for example, created. The cavities (5) are closed on the sides and open out to the exterior, on the front side where the eyelashes are introduced, via a circular opening through which the eyelashes are introduced. The cavities are closed at their rear end.

[0337] The device (1) in the form of a clamp may comprise, as illustrated, two housings (20a, 20b) into which fingers of one hand, for example the thumb and the index finger, can be introduced so as to move the two jaws (3a, 3b) apart, in order to make it possible to introduce the eyelashes between them and to close them on said eyelashes.

[0338] The cosmetic composition (6) to be moulded is placed in imprints (4) of the part (2b) of the mould (2) before introduction of the eyelashes. The composition (6) is a composition as previously described.

[0339] An independent oven, not represented, can be used to bring the composition to a temperature above its melting point, before introduction of the eyelashes into the imprints (4) of the mould. The housings (20a, 20b) preferably remain cold, the heating preferably taking place by radiative transfer on the faces of the mould having the imprints.

[0340] The cavity of the oven may have a parallelepipedal shape, for example an approximately 10 cm-sided parallelepipedal shape. In addition to its heating function, the oven can also make it possible to present the jaws in such a way that the user can seize them directly between the thumb and index finger, in a single action. In particular, it is possible to use portable clamps of which the internal faces are placed in front of the heat. sources and the external faces bear grasping rings adjusted to the shape of the fingers.

[0341] The surfaces carrying the composition can, for example, be heated in the range 30° C.-80° C. The oven can be powered by a low-voltage power source.

[0342] The heating temperature can be adjusted by the user. A casing can enable a set temperature to be displayed. The heating power can be about 5 W for example.

[0343] When the composition is at a temperature above its melting point, the user's thumb and index finger are introduced into the housings (20a and 20b), then the device (1) is brought into proximity to the eyelashes and the latter are introduced into the imprints (4) of the mould (2) of the device (1) in its open form (FIG. 4B), then the jaws (3a, 3b) are closed so as to hold the eyelashes in the cavities (5).

[0344] The moulding is carried out in situ in the cavity or cavities (5) of the mould (2).

[0345] The jaws (3a, 3b) are then opened and the eyelashes are withdrawn when the temperature of the composition (6) has come back down below its melting point.

[0346] An example of the result of the cosmetic treatment of the eyelashes (7) by such a device (1) is illustrated in FIG. 5.

[0347] The device (1) in the form of a clamp may be devoid of a system for guiding the movement of one jaw relative to the other, as represented in FIGS. 6A and 6B. This device has two housings (20a, 20b) for the fingers, like the example previously described.

[0348] Only one of the parts can have imprints, which is particularly advantageous for a device (1) devoid of guidance system, since the bringing together of the two parts of the mould does not need to be carried out very accurately.

[0349] By way of example, represented in FIG. 7A is a device (1) in which the part (2a) of the mould (2) may be smooth and the part (2b) may comprise semicircular imprints (4).

[0350] Moreover, each cavity (5) may have an elongated shape which does not reproduce the curvature of the eyelash(es) introduced, it being possible in particular for the cavity to be non-curved along its longitudinal direction, having, for example, a rectilinear longitudinal axis.

[0351] The device (1) in the form of a clamp may comprise a guidance system, for example in the form of reliefs having complementary shapes, which brings the jaws (3a, 3b) into position so that the two parts of the mould (2a, 2b) accurately correspond to one another. The device (1) in the form of a clamp may thus comprise, for example, a male and female cone guidance system.

[0352] The device (1) in the form of a clamp may comprise a guidance system of film hinge type or other form of articulation (40), as represented in FIGS. 8A and 8B, such that the jaws can be moved together by a pivoting movement with respect to one another. Each cavity formed by the superimposition of two imprints may have a rectilinear longitudinal axis. The front edges of the jaws (3a, 3b) intended to come into contact with the eyelid may have a circular shape, as illustrated.

[0353] During the use of the device (1), the angle a made by the plane of moulding with the horizontal may be zero or non-zero, in particular between 20° and 40°, as illustrated in FIG. 9. Inclining the plane of the moulds makes it possible to fix the curvature of the edge coming into contact with the eyelid as close as possible to the curvature of the eyelid itself.

[0354] The hinge (40) may comprise one or more springs (50) as represented in FIG. 10, which assist the opening movement for example.

[0355] The device (1) in the form of a clamp may comprise a single housing (20a) for receiving a finger, as illustrated in FIG. 11, or two housings, as previously described.

[0356] It may be possible for the housing(s) (20a, 20b) to be oriented rotationally, which enables an adjustment according to the angle between the user's thumb and index finger. They may be positionable, where appropriate, at various points (60a), (60b) or (60c), depending on the desired distance between the fingers and the face of the user, as illustrated in FIG. 9.

[0357] The mould (2a, 2b) may be integrated into the jaws (3a, 3b). The device (1) in the form of a clamp may then be made of a flexible material of silicone type for example, in order to facilitate demoulding.

[0358] The mould may also be made of a flexible material of silicone type with the inclusion of a rigid frame. The housing(s) (20a, 20b) may be made of a rigid material, in order to improve the holding of the clamps in place and the overall shape of the mould, while facilitating demoulding.

[0359] It is possible for the mould (2a, 2b) not to be integrated into the jaws (3a, 3b), the jaws carrying the mould, which is then added to the jaws. The mould may be flexible and held on the jaws for example by adherence or by matching shapes, for example by click-fastening and/or sliding attachment. The jaws are then preferably rigid.

[0360] The mould (2a, 2b) may or may not be disposable. The jaws (3a, 3b) may or may not be reusable. In particular, the mould (2) is disposable.

[0361] The composition (6) may be present within the mould before use of the device (1), in the part (2a), the part (2b) or in both parts, in particular in the form of a pulverulent composition. The loading of the mould with composition may be carried out prior to the use of the device, for example using a metering device.

[0362] The device in the form of a clamp has the advantage of being light, of allowing the user to precisely perceive the stresses applied, to the eyelid, during the operations, of creating a very small visual eclipse allowing optimal vision for the user, and of being easy to use.

[0363] The device (1), whether or not it is in the form of a clamp, may comprise a system which facilitates demoulding, for instance a set of small blades (10) which deform the mould, for example when moved relative to said mould in the direction of the imprints (4), as illustrated in FIGS. 12A and 12B.

[0364] The mould (2) may also comprise, as illustrated in FIG. 13, reliefs (9) between two imprints (4) intended to form two cavities, so as to cut any bridges of composition.

[0365] The device (1) may comprise blades (11) which serve to cut any bridges of composition between two cavities, as illustrated in FIG. 14.

[0366] The blades (11) are, for example, retracted within the part of the mould (2a) before closing thereof, and tend to advance upon closing of the mould. The blades (11) are, for example, interlinked with a support (111) which is mobile relative to the part (2a).

[0367] As a variant, the material of the part (2a) is elastomeric and overmoulded on the blades (11), which can push on the bridges of composition extending between the imprints (4) by virtue of the deformability of the material with which the part (2a) is made.

[0368] Other systems can be further used for cutting the bridges, for example a system which makes it possible to send compressed air via slits located between the imprints or a heating element.

[0369] The composition (6) can make it possible to attach an additional fibre (12) to an eyelash (7), with or without axial overlap between the eyelash and the additional fibre, as illustrated respectively in FIGS. 15A and 15B. The eyelash may be on the additional fibre if the additional fibre is in a cavity of the lower mould part, or vice versa, if the additional fibres are in cavities of the upper mould part. In practice, the additional fibres may also be next to the eyelashes depending on the organization caused by the pressure of the two parts of the mould.

[0370] The additional fibres may in particular be false eyelashes.

[0371] The additional fibres (12) may be placed on hold in the imprints (4) of the mould (2) (FIG. 16A). The composition (6) may then be applied to the ends of the additional fibres (12) and the eyelashes (7) introduced into the imprints (4) of the mould (2) and brought into contact with the composition (6) (FIG. 16B).

[0372] The cavities (5) may, according to various variants, have a shape which is approximately cylindrical (FIGS. 17A and 7B), approximately spherical (FIG. 17D), cylindrical on a part of their length (L) and spherical on the other part of their length (FIG. 17C), or have a decreasing cross section so as to give the eyelash(es), once moulded by the composition, a tapered appearance (FIG. 17B).

[0373] They may also have a semi-cylindrical shape in the case where the part (2a) of the mould is flat and the part (2b) of the mould is semi-cylindrical in the cavity (5) formation zone (FIG. 7A).

[0374] The depth (j) of the imprints 4 may range between 75 μm and 1.5 mm.

[0375] Each cavity (5) can receive one or more eyelashes (7), as illustrated respectively in FIGS. 18A and 18B.

[0376] Before moulding, the composition (6) may, according to various variants, be present on only one part of the cavity (5), as represented in FIGS. 19A to 19C, on all of the cavity, as illustrated in FIG. 19E, or absent from the cavity as represented in FIG. 19D. In the latter case, the composition may be injected via an injection channel (8) communicating with the cavities (5) of the mould, as illustrated in FIG. 20.

[0377] The composition (6) may be present initially, before putting the eyelashes in place, on the upper part of the cavity, corresponding to the part (2a) of the mould (FIG. 19A), on the lower part of the cavity, corresponding to the part (2b) of the mould (FIG. 19B), or both on the upper part and on the lower part of the cavity, corresponding to both parts (2a) and (2b) of the mould (FIGS. 19C and 19E).

[0378] The device (1) may comprise, or be placed in proximity to, a heating element (30), as illustrated very diagrammatically respectively in FIGS. 21A and 21B, in order to melt the composition (6), the heating element (30) being, for example, a resistive element, a radiative element or a wave dispenser. The device may provide for the injection of the composition in molten form, in particular via an injection channel (8), as represented in FIG. 20.

[0379] The device (1) according to the invention may comprise a triggering system, such as a light element (32), as represented respectively in FIGS. 22A and 22B, for example an IR, UV or visible light illuminator. The mould (2) is then preferably transparent.

EXAMPLES

Example 1: Assembly Containing a Composition Based on a Thermoplastic Polymer and a Device which has a Heating Element

[0380] 1) Cosmetic Composition

[0381] A composition in accordance with the invention is prepared as described below.

[0382] All the starting materials used are weighed out using a balance (accuracy 0.01 g). The compounds are melted in a jacketed 500 ml heating pan with a circulation of hot oil to control the temperature. The assembly is heated to approximately 95-98° C.

[0383] Once the mixture has melted, it is homogenized by stirring using a Moritz blender (stirring of rotor stator type consisting of a fixed part in which a mobile second part rotates at variable speed), in order to disperse the pigments.

[0384] The composition is then used hot in liquid form to be deposited on the moulds or at ambient temperature in solid form.

[0385] The formulation is prepared using the weight proportions described below.

TABLE-US-00001 % by weight (relative to the total weight of the Compounds composition) Mixture of copolymer of ethylene-vinyl acetate and 90 of paraffin sold under the name COOL BIND 34- 1300 ® by the company National Starch Iron oxide sold under the name SUNPURO BLACK 10 IRON OXYDE C33-7001 by the company SUN

[0386] 2) Device

[0387] The device used in Example 1 is as described in FIGS. 1A and 1B.

[0388] It contains two mobile jaws (3a) and (3b), one of the two jaws having a temperature-controlled heating system.

[0389] The two parts (2a) and (2b) of the mould, placed between the two jaws, are made of cross-linked silicone elastomer and are 2 mm thick. They each comprise 20 grooves approximately 0.5 mm in diameter over a length of 2.5 cm.

[0390] The two jaws comprise two lugs and the two parts of the mould each comprise two housings which fit the lugs.

[0391] When the two parts of the mould are brought together, 20 leaktight cavities, closed at their end, are created on the sides.

[0392] 3) Cosmetic Assembly

[0393] The thermoplastic polymer-based molten cosmetic composition is placed in the cavities and grooves of the two parts (2a) and (2b) of the mould using a pipette. The assembly is then left to cool.

[0394] The two parts (2a) and (2b) of the mould are then placed on the jaws (3a) and (3b) of the device (1).

[0395] The two jaws (3a) and (3b) are moved near to the eyelash fringe and then closed so as to trap it.

[0396] The heating is activated by virtue of the heating element of the device (1) for 4 minutes until a temperature of approximately 80° C. is reached within the composition.

[0397] The heating is then stopped and the assembly is left to cool for 4 minutes. At the end of the 4 minutes, the two jaws (3a) and (3b) are moved apart.

[0398] The two parts (2a) and (2b) of the mould remain attached to the eyelash fringe. The two parts of the mould are therefore moved apart, by pulling along their width, in order to release the eyelashes.

[0399] The result is then slightly rubbed in order to break the possible bridges of composition formed between two imprints.

[0400] A homogeneous makeup result is obtained on the eyelashes, without any eyelash brushing movement. The makeup is easy to apply without any need to calibrate the amount of composition taken and applied.

[0401] The term “homogeneous makeup result” is thus intended to mean, on the one hand, a greater volume by increasing the thickness of the eyelashes and/or increasing the diameter of the eyelashes, and/or an extension of the eyelashes by positioning of sleeves of compositions moulded in the continuity of the free ends of the eyelashes constituting the eyelash fringe.

Example 2: Assembly Containing a Wax-Based Composition and a Device which has a Heating Element

[0402] 1) Cosmetic Composition

[0403] A composition in accordance with the invention is prepared as described below.

[0404] All the starting materials used are weighed out using a balance (accuracy 0.01 g). The compounds are melted in a jacketed 500 ml heating pan with a circulation of hot oil to control the temperature. The assembly is heated to approximately 95-98° C.

[0405] Once the mixture has melted, it is homogenized by stirring using a Moritz blender (stirring of rotor stator type consisting of a fixed part in which a mobile second part rotates at variable speed), in order to disperse the pigments.

[0406] The composition is then used hot in liquid form to be deposited on the moulds or at ambient temperature in solid form.

[0407] The formulation is prepared using the weight proportions described below.

TABLE-US-00002 % by weight (relative to the total weight of Compounds the composition) Beeswax sold under the name White Beeswax 90 SP-453P by the company Strahl & Pitsch Iron oxide sold under the name SUNPURO 10 BLACK IRON OXYDE C33-7001 by the company SUN

[0408] 2) Device

[0409] The device used is identical to that of Example 1.

[0410] 3) Cosmetic Assembly

[0411] The wax-based cosmetic composition is placed in the cavities and grooves of the two parts (2a) and (2b) of the mould.

[0412] The device and the cosmetic composition are used in the same way as illustrated in Example 1.

[0413] A homogeneous makeup result is obtained on the eyelashes, without any eyelash brushing movement. The makeup is easy to apply without any need to calibrate the amount of composition taken and applied.

[0414] Example 3: Assembly containing a composition based on a semi-crystalline polymer and a device which has a heating element

[0415] 1) Cosmetic Composition

[0416] A composition in accordance with the invention is prepared as described in Example 2.

[0417] The formulation is prepared using the weight proportions described below.

TABLE-US-00003 % by weight (relative to the total weight of Compounds the composition) Poly(C.sub.10-C.sub.30)alkyl acrylate sold under the 85 name Intelimer IPA 13-1 NG by the company Air products and Chemical Iron oxide sold under the name SUNPURO 15 BLACK IRON OXYDE C33-7001 by the company SUN

[0418] 2) Device

[0419] The device used is identical to that of Example 1,

[0420] 3) Cosmetic Assembly

[0421] The cosmetic composition based on a semi-crystalline polymer is placed in the cavities and grooves of the two parts (2a) and (2b) of the mould.

[0422] The device and the cosmetic composition are used in the same way as illustrated in Example 1.

[0423] A homogeneous makeup result is obtained on the eyelashes, without any eyelash brushing movement. The makeup is easy to apply without any need to calibrate the amount of composition taken and applied.

Example 4: Assembly Containing a Composition based on a Thermoplastic Polymer and a Device with no Heating Element

[0424] 1) Cosmetic Composition

[0425] A composition as described in Example 1 is prepared.

[0426] 2) Device

[0427] The device used in Example 4 is as described in FIGS. 4A and 4B.

[0428] It consists of a clamp containing two mobile jaws (3a) and (3b).

[0429] The two parts (2a) and (2b) of the mould, placed between the two jaws, are made of cross-linked silicone elastomer and are 2 mm thick. They each comprise 20 grooves approximately 0.5 mm in diameter over a length of 2.5 cm.

[0430] The two jaws comprise two lugs and the two parts of the mould each comprise two housings which fit the lugs.

[0431] When the two parts of the mould are brought together, 20 leaktight cavities, closed at their end, are created on the sides.

[0432] 3) Cosmetic Assembly

[0433] The cosmetic composition based on a thermoplastic polymer is placed in the cavities and grooves of the two parts (2a) and (2b) of the mould.

[0434] The composition is melted by means of an external heat source.

[0435] The assembly is placed in proximity to a heat source, which heats the two parts of the mould.

[0436] The oven is based on a heating system comprising high-luminosity 5600 K white LEDs. The LEDs are divided up into 6 networks of 14 LEDs: model Bridgelux BXRA-56C1100-B-00. The total light flux delivered is 8700 lumen. The LEDs produce 124 Lm/W@5600° K. The oven comprises a forced ventilation system with air intakes via the bottom and evacuation holes on the flanks. The LEDs are on a copper heat pipe mounted on a finned radiator, itself cooled by a fan. A parabolic deflector homogenizes the light on the moulds to be heated. The clamp comprises two ,jaws.

[0437] The oven is controlled by a control unit which supplies the oven with a Traco Power 100 W-24 V power supply. It makes it possible to adjust the temperature setting and manages the temperature servo-control. The temperature management is carried out using the ESM-4420 PID (proportional integral derivative) temperature controller.

[0438] The assembly makes it possible to produce a heat of approximately 70° C. and rapid heat transfer.

[0439] Removed from the oven, the eyelashes are clasped in said assembly which is then cooled for 5 minutes, then demoulded.

[0440] The result is then slightly rubbed in order to break the possible bridges of composition formed between two imprints.

[0441] A homogeneous makeup result is obtained on the eyelashes, without any eyelash brushing movement. The makeup is easy to apply without any need to calibrate the amount of composition taken and applied.

Example 5: Assembly Containing a Fluid Composition and a Device which has a Heating Element

[0442] 1) Fluid Cosmetic Composition

[0443] The fluid cosmetic composition used is identical to that sold under the name Mascara Volume Millions de Cils by the company L'Oréal. This composition has a viscosity of approximately 4 Pa.Math.s.

[0444] 2) Device

[0445] The device used is identical to that of Example 1.

[0446] 3) Cosmetic Assembly

[0447] The cosmetic composition is placed in the cavities and grooves of the two parts (2a) and (2b) of the mould.

[0448] The device and the cosmetic composition are used in the same way as illustrated in Example 1.

[0449] A homogeneous makeup result is obtained on the eyelashes, without any eyelash brushing movement. The makeup is easy to apply without any need to calibrate the amount of composition taken and applied.

Example 6: Assembly Containing Additional Fibres

[0450] The cosmetic composition and the device are the same as those used in Example 1.

[0451] Additional fibres 1 cm in length are placed in the imprints of one of the two parts of the mould, as illustrated in FIG. 16A.

[0452] The composition is melted and then one drop of the composition is placed, with a hot micropipette, at each end of the additional fibres, as represented in FIG. 16B.

[0453] After cooling of the composition, one part of the mould thus prepared is mounted on one jaw and one part of the unused mould is mounted on the other jaw.

[0454] The assembly comprising the fibres is heated for 5 minutes in an oven produced as follows.

[0455] The oven is based on a heating system comprising high-luminosity 5600K white LEDs. The LEDs are divided up into 6 networks of 14 LEDs: model Bridgelux BXRA-56C1100-B-00. The total light flux delivered is 8700 lumen. The LEDs produce 124 Lm/W@5600° K. The oven comprises a forced ventilation system with air intakes via the bottom and evacuation holes on the flanks. The LEDs are on a copper heat pipe mounted on a finned radiator, itself cooled by a fan. A parabolic deflector homogenizes the light on the moulds to be heated. The clamp comprises two jaws.

[0456] The oven is controlled by a control unit which supplies the oven with a Traco Power 100 W-24 V power supply. It makes it possible to adjust the temperature setting and manages the temperature servo-control. The temperature management is carried out using the ESM-4420 PID (proportional integral derivative) temperature controller.

[0457] The assembly makes it possible to produce a heat of approximately 70° C. and rapid heat transfer.

[0458] Removed from the oven, the eyelashes are clasped in said assembly which is then cooled for 5 minutes, then demoulded.

[0459] The additional fibres are attached to the eyelashes and the connection is aesthetic.

[0460] An attachment without overlap is obtained, as illustrated in FIG. 15B.

Example 7: Assembly Containing Additional Fibres

[0461] The cosmetic composition and the device are the same as those used in Example 1.

[0462] Additional fibres 1 cm in length are placed in the imprints of one of the two parts of the mould, as illustrated in FIG. 16A.

[0463] The composition is melted and then one drop of the composition is placed, with a hot micropipette, at each end of the additional fibres, as represented in FIG. 16B.

[0464] After cooling of the composition, one part of the mould thus prepared is mounted on one jaw and one part of the unused mould is mounted on the other jaw.

[0465] Before clasping the eyelashes, the jaws and the mould are heated for 5 minutes.

[0466] The eyelashes are then clamped and the assembly is heated for 2 minutes.

[0467] The assembly is left to cool for 5 minutes, then demoulded.

[0468] The additional fibres are attached to the eyelashes and the connection is aesthetic.

[0469] An attachment with overlap is obtained, as illustrated in FIG. 15A. Indeed, the preheating melts each of the small drops of composition and, in doing so, allows the eyelashes to advance towards the additional fibres.

Example 8: Assembly Containing Additional Fibres

[0470] A device identical to that of Example 1 is produced, with the difference that the elastomeric mould comprises, in addition to the grooves, a groove which is I mm deep across a width of 4 mm and transverse to the length of the mould. The transverse groove is produced 5 mm from the edge.

[0471] Additional fibres are, as in Example 7, placed in the grooves. The meltable composition, as described in Example 1, is placed in the transverse groove, then the whole thing is heated in order to melt the composition, and then left to cool.

[0472] While cooling, the material traps the additional fibres along the width of the groove. The melted then cooled composition is mainly on the part of the additional fibres facing the transverse groove. There is also a small amount of melted then cooled composition along the length of the additional fibres (along a length of approximately 5 mm).

[0473] Finally, a jaw-comprising heating system as described in Example 7 is used to weld the additional fibres to the existing eyelashes.