技术问题语段：
The technical problem addressed in this patent is the difficulty of creating a standard make-up look for the lips, as the natural shape of the lips can vary widely. Users often struggle to achieve a clean, error-free outline with the traditional methods of applying lip make-up, and may resort to taking longer to apply make-up or wearing more neutral colors. The patent describes various methods for creating a personalized applicator for the lips, including using a 3D scan of the lips, an adhesive layer, and a layer of composition for transferring the product. The goal is to create a make-up look that is unique to the user and can follow the natural outline of the lips, while also being easy to apply and remove.
权利要求：
CLAIMS
1. A method for manufacturing a personalized applicator (1) for applying a cosmetic composition to the lips, this applicator (1) comprising an application surface (2) made from a material that can become loaded with composition, the method comprising the following steps:
a) performing a 3D scan of the topography of at least part of the surface of the lips, and
b) from at least said scan, creating at least part of the applicator (1) or a mold used for the manufacture thereof, by machining a preform or by additive manufacturing.
2. The method as claimed in claim 1, the outline of the application surface (2) corresponding to the natural outline of the lips.
3. The method as claimed in claim 1, the outline of the application surface (2) diverging from the natural outline of the lips.
4. The method as claimed in claim 3, involving creating an outline which differs from the natural outline of the scanned lips, notably a different shape of Cupid's bow and/or a different height and/or a different width.
5. The method as claimed in any one of claims 1 to 4, comprising the generation of a reworked 3D surface different than the natural surface of the lips, the applicator (1) or the mold used for its manufacture having a shape given at least in part by this reworked surface.
6. The method as claimed in claim 5, the reworked surface diverging from the natural surface of the lips inside the outline thereof, in order to leave a space between the application surface (2) and the scanned lips when the applicator (1) is applied to the lips in the normal way.
7. The method as claimed in one of claims 5 and 6 without dependency on claim 2, the reworked surface coinciding with the natural surface of the lips resulting from the scan, apart from its outline which differs from the natural outline of the scanned lips.
8. The method as claimed in any one of claims 5 to 7, comprising a step involving giving the user an option to choose between at least two make-up results, the reworked surface being generated at least on the basis of this choice.
9. The method as claimed in any one of claims 5 to 8, involving displaying the natural surface of the scanned lips and/or a make-up result obtained with the applicator (1) and/or the reworked surface.
10. The method as claimed in any one of claims 5 to 9, involving the step of allowing an operator to model a surface obtained from the 3D scan, notably the outline thereof, and thus generate the reworked surface.
11. The method as claimed in claim 10, the modeling being performed remotely using software from a workstation to which the data representative of the 3D scan have been transmitted over a telecommunications network, notably over the Internet or by GSM/GPRS.
12. The method as claimed in any one of claims 5 to 11, comprising the detection, notably automatically using software, of asymmetry of the lips and/or the face; the calculation of the reworked surface being performed, preferably automatically, at least with consideration to the detected asymmetry.
13. The method as claimed in any one of the preceding claims, involving an outlining, preferably automatic, of the lips from at least one image thereof.
14. The method as claimed in any one of claims 1 to 13, involving determining a plurality of points on the natural outline of the lips, notably from at least one image thereof, and estimating the natural outline of the lips by interpolation between these points.
15. The method as claimed in any one of claims 1 to 14, involving determining a plurality of points on the outline of the reworked surface, notably from at least one image allowing an operator visually to position these points, and generating at least part of the outline of the reworked surface by interpolation between these points.
16. The method as claimed in any one of the preceding claims, in which a translated numerical copy of a surface obtained from the 3D scan of the lips is created, and then a smoothed volume of the applicator (1) or of the mold between said surface and the translated copy thereof is generated.
17. The method as claimed in any one of the preceding claims, in which the applicator (1) is produced with a handle (4) on the back.
18. The method as claimed in any one of the preceding claims, wherein the applicator (1) is produced by machining.
19. The method as claimed in claim 18, wherein a preform chosen, notably automatically, from among many according to the shape that is to be obtained after machining, is machined.
20. The method as claimed in claim 17 and one of claims 18 and 19, wherein a preform already comprising the handle (4) is machined.
21. The method as claimed in any one of claims 1 to 16, wherein the applicator
(1) or the mold intended for its manufacture is produced by an additive method, notably by 3D printing.
22. The method as claimed in any one of the preceding claims, wherein the application surface (2) is at least partially covered in flock.
23. The method as claimed in any one of the preceding claims, involving displaying at least a portion of the face of the individual with a simulation of the lip makeup such as can be obtained with the personalized applicator (1).
24. The method as claimed in any one of the preceding claims, the 3D scan being preceded by the application of a composition to the lips according to a defined outline.
25. The method as claimed in claim 24, said outline corresponding to the natural outline of the lips.
26. The method as claimed in claim 24, said outline corresponding to that of the application surface (2) that is to be created.
27. The method as claimed in any one of the preceding claims, the application surface (2) of the applicator (1) being configured to apply the composition to all or almost all of the lips.
28. The method as claimed in any one of claims 1 to 26, the application surface
(2) of the applicator (1, 10) being configured to apply the composition to just a portion of the lips.
29. The method as claimed in claim 28, said portion corresponding to the outline of the lips.
30. The method as claimed in any one of the preceding claims, the scan of the topography of the lips including the scan of a region of skin extending around the mouth, and preferably excluding the scan of other regions of the face, such as the nose, the cheeks, the eyes or the forehead.
31. A method for the cosmetic treatment of the lips, notably for applying makeup to same, involving applying a cosmetic composition to the lips using an applicator (1) obtained by the method as claimed in any one of the preceding claims.
32. The method as claimed in claim 31, the applicator (1) becoming loaded with composition by being brought into contact with a pad (7) soaked in composition.
33. The method as claimed in claims 6 and 32, the composition being self- expanding and filling said space as it expands.
34. The method as claimed in claim 31, the applicator (1) being heated and becoming loaded with composition by being brought into contact with a block of composition.
35. The method as claimed in claim 31, the composition being adhesive, the method further comprising the application to the adhesive composition applied to the lips of a second cosmetic composition, notably in powder form.
36. The method as claimed in claim 31 , the composition being transparent.