Classifications

• • 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
  • A61K8/0216—Solid or semisolid forms
  • A61K8/0229—Sticks
• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
  • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
  • A45D40/16—Refill sticks; Moulding devices for producing sticks
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
  • A61Q1/06—Lipsticks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
  • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
  • B29C39/023—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multicoloured articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
  • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C39/026—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles characterised by the shape of the surface
• • A—HUMAN NECESSITIES
  • A45—HAND OR TRAVELLING ARTICLES
  • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
  • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
  • A45D2040/0012—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks with special decorative arrangements or form

Definitions

• the present invention relates to sticks of cosmetic product including lipstick or product for the complexion, comprising two compositions and having a relief decorative surface portion.
• the invention relates to a stick of a cosmetic product comprising two compositions, for example of the core-sheath type, in particular a lipstick stick of the heart-sheath type, having a decorative surface portion in relief, a process heart-sheath type and a device for manufacturing such a stick of cosmetic product.
• the invention relates to a stick of cosmetic product comprising at least two compositions, that is to say it could comprise more than two different compositions.
• the document FR2417980A1 discloses a lipstick stick heart-sheath type and a device for manufacturing such a stick lipstick.
• the lipstick stick described in FR2417980A1 does not have a raised decorative surface portion and the device described does not make it possible to manufacture a heart-sheath type lipstick with a decorative surface portion embossed.
• the device comprises a rigid mold in which the lipstick stick is cast or injected. Such a mold does not make it possible to make a decorative surface portion in relief on the sheath of the lipstick stick. Indeed, during the demolding of the lipstick stick, the relief decorative surface portion would rub against the mold and would be very strongly altered.
• FR2823082A3 discloses a stick of red to lip having a decorative surface portion embossed and a device for manufacturing such a stick of lipstick.
• the lipstick stick described in FR2823082A3 is not of the core-sheath type and the device described does not make it possible to manufacture a heart-sheath type lipstick stick having a decorative surface portion in relief.
• the device comprises an elastic mold in which the lipstick stick is cast or injected. Such a mold does not allow the casting or injection of two compositions to form a sheath surrounding a heart. Indeed, to do this, it is necessary to introduce into the mold a core that bears against the bottom of the elastic mold without the latter is deformed.
• the device described in FR2823082A3 does not guarantee this support.
• the present invention is intended in particular to produce a stick of cosmetic product comprising two compositions and which has a relief decorative surface portion.
• the stick of cosmetic product according to the invention in particular lipstick, comprises two compositions A and B extending along a longitudinal axis, the stick of cosmetic product having a lateral surface having a portion of decorative surface in relief.
• compositions A and B may be different or identical; likewise they may be of different or identical texture; likewise they may be of different or identical color.
• the cosmetic product stick is of the heart-sheath type, the two compositions A and B being arranged one by relating to each other to form a sheathed core along the longitudinal axis, the sheath having a side surface having the raised decorative surface portion;
• the cosmetic product stick has a beveled free end
• the sheath has at the free end beveled a constant thickness around the heart;
• the core is concentric with the sheath
• the relief decorative surface portion is projecting or recessed.
• the invention also relates to a method for manufacturing a stick of cosmetic product, in particular lipstick, comprising two compositions A and B, extending along a longitudinal axis, the stick having a lateral surface having a decorative surface portion in relief, characterized in that the method uses:
• the method may further include a step of lubricating the core.
• the invention also relates to a device for manufacturing a stick of a cosmetic product, in particular a lipstick, comprising two compositions A and B, extending along a longitudinal axis, the stick having a side surface having a raised decorative surface portion.
• the device according to the invention allows in particular the manufacture of a stick of cosmetic product, in particular lipstick, heart-sheath type, extending along a longitudinal axis, comprising two compositions A and B disposed l relative to each other to form a sheathed core along the longitudinal axis, the sheath having a side surface having a raised decorative surface portion.
• the cosmetic product stick in particular lipstick, is of the heart-sheath type, the two compositions A and B being arranged relative to each other to form a heart surrounded by a sheath along the longitudinal axis, the sheath having a lateral surface having the decorative surface portion in relief;
• the bucket is of a size smaller than that of the cavity so as to define a space between the bucket and the cavity, and the device comprises means for depressing the space;
• the core has an air outlet channel opening on the one hand on the end of the core in contact with the beveled inner surface of the bucket and on the other hand in a portion of the core out of the bucket when the core is inserted in said bucket;
• the device further comprises means for adjusting the pressure of the core in the bucket;
• the pressure adjusting means may comprise a spring;
• the device further comprises a guide means in translation and centering the core in the bucket; the means for guiding in translation and centering can be retractable;
• the core and the guide means in translation and centering are mounted on a block;
• the device further comprises a magnetization means for maintaining the guide means in translation and centering in the retracted position;
• the guide means in translation and centering comprises a centering ring adapted to cooperate with a housing provided in the base;
• the device comprises a plurality of cavities, a plurality of elastic buckets each having a raised surface and a plurality of cores, wherein the plurality of cavities are formed in the base, each of the buckets being received in each cavity, and wherein each of the cores is movable in translation between an inserted position in which the cores are positioned in the cups and a withdrawn position in which the cores are removed from the cups.
• the pattern on this portion of the decorative surface may in particular represent a decorative and / or informative element, such as a decorative motif, a logo, a trademark, a personalized inscription, etc.
• Figure 1A is a front view of a stick of cosmetic product according to the invention
• - Figure 1B is a side view of the cosmetic product stick of Figure 1A;
• FIG. 2 is an exploded perspective view of the device according to the invention, illustrating the method according to the invention
• FIG. 3A is a perspective view of the device of FIG. 2, the cores being outside the buckets;
• FIG. 3B is a perspective view of the device of Figure 2, the cores being inserted into the cups;
• Figure 4A is a partial sectional view of the device of Figure 3B along line IV-IV, the guide means in translation and centering being retracted, the cores are not shown for better visibility;
• FIG. 4B is a partial sectional view of the device of Figure 3B along line IV-IV, the guide means in translation and centering being deployed and in contact with the reduction plate, the cores are not shown for better visibility;
• FIG. 4C is a partial sectional view of the device of Figure 3B along the line IV-IV, the guide means in translation and centering being deployed and at a distance from the reduction plate, the cores not being represented for better visibility;
• FIG. 5 is a sectional view of the device of Figure 4 along the line V-V;
• Fig. 6A is a sectional view of the base of the device of Fig. 5 with the sheath poured into the cup;
• FIG. 6B is a sectional view of the base of the device of Figure 5 with the core cast in the sheath;
• FIG. 7 is a sectional view of the base of the device of FIG. 5 with the heart sunk into the sheath;
• FIG. 8 is a timing diagram schematically illustrating the steps of the method according to the invention.
• Figures 1A and 1B show a stick of cosmetic product 10 according to the invention.
• the stick of cosmetic product is in particular lipstick.
• the stick of cosmetic product 10 extends along a longitudinal axis X-X.
• the cosmetic product stick 10 comprises two compositions A and B extending along a longitudinal axis X-X.
• the cosmetic product stick 10 may be of the core-sheath type, comprising two compositions A and B arranged relative to each other to form a core 12 surrounded by a sheath 14 along the longitudinal axis X-X.
• the description is made for a cosmetic product stick 10 of the heart-sheath type, but it should be understood that it is not limited to this type of cosmetic product stick, but can be applied to any type of cosmetic product stick 10 comprising two compositions A and B.
• compositions A and B are cosmetic products which are part of the composition of cosmetic product sticks and which are preferably visually distinct.
• the sheath 14 of the cosmetic product stick 10 has a decorative surface portion S in relief on the lateral surface 10C of the cosmetic product stick 10.
• the surface portion decorative S is projecting, as shown in Figures 1A and 1B, or hollow, as shown in Figures 5 to 7, so as to form at least one undercut relative to a demolding along the axis of the stick of cosmetic product 10.
• the cosmetic product stick 10 has a free end 10A and, opposite the latter, an end 10B which is attached to a dispensing mechanism 16 of known type.
• the end 10A may be in the form of a warhead.
• the cosmetic product stick 10 can be beveled at the free end 10A, as best seen in Figure 1B. This bevel is off-centered because of the convex shape of the pointed end of the stick of cosmetic product 10.
• the sheath 14 may have at the free beveled end 10A a constant thickness around the core 12 measured in the plane of the bevel. More particularly, at the free beveled end 10A, the sheath 14 has a thickness 14 'which is constant all around the core 12. Next will be described how it is possible to have this consistency in the thickness while the free end 10A is tapered.
• the cross section of the stick is preferably circular, but could have any other shape.
• the cross section of the core is preferably circular, but could have any other shape, for example oval, drop, polygonal, especially star.
• FIG. 2 shows an exploded view of the device according to the invention for implementing the method according to the invention.
• the device according to the invention makes it possible to manufacture a stick of cosmetic product 10 as described above.
• the device thus makes it possible to manufacture a stick of cosmetic product 10, in particular lipstick, comprising two compositions A and B, extending along a longitudinal axis (XX), but also a stick of cosmetic product, in particular of lipstick, heart-sheath type.
• XX longitudinal axis
• the description is made of a device for manufacturing a stick of cosmetic product 10 heart-sheath type, but it should be understood that it is not limited to this type of cosmetic product stick, but can be applied to any type of stick cosmetic product comprising two compositions A and B.
• the device comprises a base 18 comprising a cavity 20 formed in the base 18.
• the base 18 comprises a plurality of cavities 20 thus allowing the simultaneous manufacture of several sticks of cosmetic product 10 according to the invention.
• the base 18 has six cavities 20, but it could include a different number (lower or higher).
• the device according to the invention further comprises an elastic cup 22 which is received in the cavity 18.
• the cup 22 will preferably be formed from a material having an elasticity necessary for its deformation to extract the stick of cosmetic product and not presenting a risk of interaction with these compositions, such as rubber or silicone.
• the bucket 22 has a raised surface (not shown) which is complementary to the raised surface S made on the sheath 14. In this case, as illustrated in the figures, when the raised surface S of the cosmetic product stick 10 is protruding, the raised surface S 'of the bucket 22 is recessed. Conversely, when the raised surface of the cosmetic product stick 10 is recessed, the raised surface of the cup 22 is protruding.
• the device according to the invention may comprise six elastic buckets 22 which are each received in one of the six cavities 18.
• Each of the buckets 22 has a raised surface S 'which is complementary to the relief surface S performed on the sheath 14.
• the device according to the invention furthermore comprises a core 24 which is movable in translation along a longitudinal axis XX between an inserted position, as illustrated in FIG. 3B in which the core is positioned in the cup 22 and a withdrawn position, as illustrated in FIG. 3A, in which the core is removed from the bucket 22.
• the core 24 is preferably made of metal, for example steel or aluminum, which may have a coating made for example by anodizing.
• the device according to the invention comprises six cores 24 which are each received in one of the six buckets 22.
• the device further comprises a means 26 for deforming the bucket 22 in order to be able to extract a stick of cosmetic product from the bucket without damaging the decorative surface portion S in relief.
• the means 26 makes it possible to deform each of the six buckets 22.
• Each cup 22 is of a size smaller than that of the cavity 20, so as to define a space E between each of the cups 22 and the corresponding cavity 20.
• the means 26 makes it possible to depressurize the spaces E and thus deform each of the buckets 22 and allow the mold to be demolded easily and without deterioration of the cosmetic product stick 10, as illustrated in FIG. 7.
• the means 26 is of the known type and may include a vacuum pump, lines and check valves.
• Such a device thus makes it possible to simultaneously produce six sticks of cosmetic product 10 according to the invention.
• the core 24 has a free-beveled end 24A of equivalent shape to the free beveled end 10A of the stick of cosmetic product 10. even for the interior of the bucket 22 which also has a corresponding bevelled inner surface 22A.
• the free end 24A of the core 24 comes into contact with the bevelled inner surface 22A of the cup 22.
• an offset ⁇ may be provided between the longitudinal axis XX and the axis X12-X12 of the core 12.
• the axis X12-X12 of the core 12 is defined as being the axis which passes through the cosmetic stick 10 equidistant from the side walls 12C of the heart 12 (FIG. 1B). This axis is therefore defined outside the area of the oblique surface 10A.
• the core 24 has an evacuation channel. 24 'air (or vent) opening on the one hand to the free end 24A of the core 24 on the bevel and secondly in a portion of the core 24 out of the bucket 22 when the core 24 is inserted into said cup 24 and allowing venting of the core 24 and avoiding the suction effect.
• the device comprises a means of adjusting the pressure 25 of the core 24 in the bucket 22.
• the core 24 is slidably mounted on a block 28 via a pressure adjustment means 25 having a bearing 30 and a rod 32; the pressure adjusting means 25 of the core 24 further comprises a spring 34 for exerting a pressure on the bearing 30 and thus regulating the pressure exerted by the core 24 in the bottom of the bucket 22.
• the characteristics of the spring 34 are chosen depending on the dimensions of the core 24 and the bucket 22 and the elasticity of the bucket 22.
• the elasticity of the spring 34 is adapted so that the movement of the finger relative to the core 24 is stopped before the deformation of the core 24 while the movement of the block 28 continues its implementation run.
• the spring 34 is preferably a compression spring.
• the sliding stroke of the core is less than
• the pressure adjusting means 25 is advantageously substantially halfway.
• Each core 24 is independent.
• the two illustrated cores 24 are at different heights.
• a difference ⁇ greater or less and can be zero, is thus visible in Figure 5 between the two cores 24 shown.
• this gap ⁇ is present between the free ends 24A of the core coming into contact with the beveled internal surface 22A of the bucket 22.
• This difference is also present at the bearings 30.
• This difference in height is related to the compression difference of the two springs 34. This difference may be due for example to differences between the buckets 22, in particular because of their manufacturing tolerances.
• the device further comprises a flange 38 and a reduction plate 40.
• the flange 38 is intended to remain on the base 18 to maintain the bucket 22, while the reduction plate 40 is intended to be removed after completion of the stick of cosmetic product 10 to allow the attachment of the latter to a dispensing mechanism 16 before coming to unmold the stick of cosmetic product 10 of the bucket 22.
• the flange 38 is held at the base 18 for example by magnetization.
• the reduction plate 40 can be arranged and centered on the flange 38 by a centering pin 42 fixed to the reduction plate 40.
• a centering pin 42 fixed to the reduction plate 40.
• the finger 42 is inserted through the flange 38 in the bucket 22.
• the finger 42 is of course provided with a through opening 42 'allowing the passage the core 24 through the finger 42 and the filling with the composition A for forming the sheath 14.
• the reduction plate 40 can be held in the flange 38 by magnetization.
• the device, and in particular, the block 28 may further comprise a guide means in translation and centering 36 of the core 24 in the bucket 22.
• the 36 comprises one or more guide rings in translation and centering 44 for insertion into housings 46 provided on the flange 38.
• it can be provided two guide rings in translation and centering 44 for fit into two dwellings 46 correspondents.
• These rings 44 make it possible to center the block 28 against the base 18 (via the flange 38 and the reduction plate 40).
• the guide rings in translation and centering 44 fit and fit in the housing 46 slightly frustoconical to facilitate guiding and centering.
• the ring 44 can be made of metal and is held at the base 18 by means of the flange 38 by means of magnets 47 positioned on the flange 38 facing the housings 46 of the reduction plate 40, the block 28 then being held firmly against the base 18.
• the translation guiding and centering means 36 may be retractable, thus allowing retraction between the inserted position (FIG. 3B) and the withdrawn position (FIG. 3A) of the core 24.
• the rings 44 are magnetic so that the translational guiding and centering means 36 can be held in the retracted position with respect to the block 28 by magnetic effect by means of magnets 48 provided on the block 28 and / or on the translation guiding and centering means 36, as best seen in Figure 4A.
• the translational guiding and centering means 36 may comprise a sliding assembly 38, more specifically a pair of sliding assemblies 38.
• Each sliding assembly is formed of a sliding rod 38A mounted sliding in translation in a bearing. 38C guide built into block 28, via Slide 38B or other bearings or ball cages.
• the block 28 comprises a housing 38D in which the guide bearing 38C is recessed and with respect to which the rod 38A is able to slide along the longitudinal axis X-X; thus the rod 38A can be retracted inside the block 28 by sliding.
• compositions A and B are of the known type.
• the method thus makes it possible to manufacture a stick of cosmetic product 10, in particular lipstick, comprising two compositions A and B, extending along a longitudinal axis (XX), but also a stick of a cosmetic product, especially of lipstick, heart-sheath type.
• XX longitudinal axis
• the description is made of a method for manufacturing a stick of cosmetic product 10 of the heart-sheath type, but it must be understood that it is not limited to this type of cosmetic product stick, but can be applied to any type of cosmetic product stick comprising two compositions A and B.
• a step El the translational guiding and centering means 36 is retracted and the cores 24 are previously lubricated with a lubricant material to prevent compositions A and B from adhering thereto.
• the cores 24 are coated with silicone.
• the coating can be carried out by spraying.
• step E2 the reduction plate 40 (and the centering fingers 42 attached thereto) is placed on the flange 38 itself arranged on the base 18.
• step E3 the block 28 is brought above the base 18, in this case above the reduction plate 40, for example by means of a robotic arm (not shown).
• a step E4 the block 28 is then lowered along the longitudinal axis XX to approach the translation guide and centering means 36 of the base 28, in this case the reduction plate 40, each core 24 coming from gradually insert the bucket 22 corresponding.
• the approaching of the block 28 stops when the guide rings in translation and centering 44 of the translational guiding and centering means 36 are in position in the housings 46.
• the guide rings in translation and centering 44 fit tightly into the housings 46 and are held by magnetization against the flange 38, the block 28 then being held firmly against the base 18.
• Each core 24 is then in contact with the bevelled inner surface 22A of the bucket 22 without deforming the latter, thanks to the corresponding pressure adjustment means 25.
• Each core 24 comes into contact with the bevelled inner surface 22A of the bucket 22 before the end of the approach of the block 28 (FIGS. 3B, 4A and 5).
• a filling head (not shown) in cooperation with opening 42 'provided opening in the bucket 22 and is poured or injected inside the cavity C (available volume between the core 24 and the cup 22) a quantity of product of composition A substantially corresponding to the volume of said cavity C ( Figure 5).
• the product of composition A penetrates inside the cavity C, expels the air initially present in it and comes into contact with the raised surface S 'of the cup 22.
• a preheating or cooling step step E6 of the bucket 22 made before the casting step or injection of the composition A.
• step E7 it follows a step of cooling and solidification (step E7) at least partial of the composition A thus cast.
• the cosmetic product cast inside the cavity C adheres to the cup 22 at its filling area by contact with the peripheral wall and the bottom of the cup 22.
• the opening 42 'provided in the fingers 42 is slightly conical narrowing down the cosmetic stick 10, ie the end 10B of the cosmetic stick 10. This reduces the diameter of the stick of the cosmetic stick 10 in order to adapt to the distribution mechanism 16 and inherently it also plays a role in maintaining the sheath at the time of removal of the core.
• the block 28 is then raised along the longitudinal axis XX (step E8), the magnets 48 are spaced apart from the translation guiding and centering means 36 which are progressively stretched, the cores 24 still being in the cups 22, until fully deployed, the cores 24 then being out of the buckets 22.
• the fully deployed position of the translation guiding and centering means 36 is defined by a stop of the slide assemblies 38.
• the device may comprise screws 37 which are able to slide in bores 37 'provided in the block 28 and abut against a shoulder 37''provided in the bores 37' and which are screwed to the guide rings in translation and centering 44. When the screws 37 come into abutment in the bores 37 'against the shoulders 37''(see FIG. 4B), the guide rings in translation and centering 44 are still housed in dwellings 46.
• venting of the core 24 is carried out by means of the air outlet channel 24 '(or vent) opening at the free end 24A of the core 24.
• the block 28 is separated from the base 28 by displacement means (not shown).
• the aforementioned silicone coating is then repeated on the cores 24 (step E1).
• the translation guiding and centering means 36 is then retracted in the retracted position by retracting means (not shown).
• step E9 a second filling head (not shown) is brought into cooperation with a through opening 14 "and a quantity of a second composition B product is poured or injected inside the second cavity C. to the volume of said second cavity C.
• the second composition product B penetrates inside the second cavity C and adheres to the sheath 14 (composition A) at their contact interface (see FIG. 6B).
• the second cosmetic product (composition B) cast inside the sheath 14 has a melting point less than or equal to that of the first cosmetic product (composition A). In this way, it is avoided that the second cosmetic product (composition B) cast inside the sheath 14 melts the first cosmetic product (composition A).
• the adhesion between the core 12 and the sheath 14 can be obtained by friction or chemical reaction, between the compositions A and B, located at the interface of the core 12 and the sheath 14.
• the second cosmetic product (composition B) cast inside the sheath 14 has a slightly higher melting temperature than the first cosmetic product (composition A). In this way, when the second cosmetic product (composition B) is cast inside the sheath 14, it melts the first cosmetic product locally (composition A). In this case, the adhesion between the core 12 and the sheath 14 can be obtained by melting / mixing, between the compositions A and B, located at the interface of the core 12 and the sheath 14.
• step E10 It follows a new step of cooling and solidification (step E10) of the second product cosmetic (composition B) cast.
• the second cosmetic product (composition B) cast inside the second cavity C then adheres to the first cosmetic product (composition A) cast during the first cycle, so as to form with said cosmetic product (composition A) cast during of the first cycle an integral assembly, namely the stick of cosmetic product 10 according to the invention.
• the reduction plate 40 Before demolding the cosmetic product stick 10 from the cup 22, the reduction plate 40, and thus the centering finger 42 fixed to the reduction plate 40, is removed in a step Eli, to allow the fixing of the stick of cosmetic product. 10 to a dispensing mechanism 16, as shown in Figure 7.
• the manipulation of the reduction plate may be made by a robotic arm (not shown in the figures).
• the means 26 for deforming the cup 22 is actuated to deform each of the six cups 22 (step E12), as illustrated. in FIG. 7.
• the space E present between the cup 22 and the cavity 20 is reduced to a space E 'and the cup 22 is deformed thanks to its elasticity under the effect of this pressure.
• the raised surface S 'of the cup 22 is thus also removed from the raised surface S formed on the sheath 4 of the cosmetic product stick 10.
• the cup 22 As soon as the cup 22 is deformed, it deviates from the sheath 14 and the core 12 and the demolding of the stick of cosmetic product 10 can be achieved without deterioration of the stick of cosmetic product 10, and in particular without deterioration of the surface embossed S.
• the relief surface S forms a decorative pattern in relief on the stick face of the obtained cosmetic product which is exposed to the user.
• the manufacturing cycle can then resume at the beginning of the process described above (steps E1 to E12).
• a rotary table machine can be used to implement this method, the bases 18 then moving from station to station for performing each step E1 to E12.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Cosmetics (AREA)

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Citations (7)

Family Cites Families (23)

• 2017
  • 2017-05-09 FR FR1754064A patent/FR3066082B1/fr active Active
• 2018
  • 2018-05-03 KR KR1020197035899A patent/KR102533202B1/ko active Active
  • 2018-05-03 JP JP2019562389A patent/JP7211975B2/ja active Active
  • 2018-05-03 EP EP18728690.1A patent/EP3634175B1/fr active Active
  • 2018-05-03 US US16/612,237 patent/US20200163440A1/en not_active Abandoned
  • 2018-05-03 CN CN201880046079.8A patent/CN111386057B/zh active Active
  • 2018-05-03 CN CN202310308745.3A patent/CN116270258A/zh active Pending
  • 2018-05-03 WO PCT/FR2018/051117 patent/WO2018206883A1/fr not_active Ceased
• 2022
  • 2022-10-26 JP JP2022171300A patent/JP2023027039A/ja active Pending
• 2024
  • 2024-01-19 US US18/417,869 patent/US20240245197A1/en active Pending

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