WO2022002794A1 - Ensemble de conditionnement et de distribution d'un produit, comprenant un élément applicateur de produit muni d'orifices de section variable en continu - Google Patents

Ensemble de conditionnement et de distribution d'un produit, comprenant un élément applicateur de produit muni d'orifices de section variable en continu Download PDF

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Publication number
WO2022002794A1
WO2022002794A1 PCT/EP2021/067538 EP2021067538W WO2022002794A1 WO 2022002794 A1 WO2022002794 A1 WO 2022002794A1 EP 2021067538 W EP2021067538 W EP 2021067538W WO 2022002794 A1 WO2022002794 A1 WO 2022002794A1
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WO
WIPO (PCT)
Prior art keywords
orifices
inlet section
product
dispensing
section
Prior art date
Application number
PCT/EP2021/067538
Other languages
English (en)
Inventor
Laurent Aubry
Original Assignee
L'oreal
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 L'oreal filed Critical L'oreal
Publication of WO2022002794A1 publication Critical patent/WO2022002794A1/fr

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Classifications

    • 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
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • 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
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball

Definitions

  • TITLE Assembly for packaging and dispensing a product, comprising a product applicator member provided with orifices of continuously variable section
  • the present invention relates to the field of assemblies for packaging and dispensing a product, in particular a cosmetic product.
  • a “cosmetic product” is understood to be a product as defined in Regulation (EC) No 1223/2009 of the European Parliament and of the Council of 30 November 2009 relating to cosmetic products.
  • the invention relates to an assembly for packaging and dispensing a pasty or viscous product, for example a product for caring for or making up the lips.
  • a device for packaging and applying lipstick comprises a receptacle, a cup supporting a stick of lipstick and a mechanism for moving said cup.
  • the application surface of the stick of lipstick is generally inclined with respect to the axis of the device, in order to make it easier to apply.
  • the application surface deteriorates as said stick is used.
  • devices comprising a reservoir delimiting an internal volume containing a product and an application end piece having a plurality of outlet orifices that open onto the application surface are known.
  • the document FR 2 810 859 - B1 discloses a device for packaging and applying a product comprising a reservoir delimiting an internal volume containing a product and an application end piece having a circular annular groove for product outlet that opens onto an application surface and is in fluidic communication with the internal volume of the reservoir.
  • the annular grove is only partially filled with the product when the latter is discharged from the reservoir to the product application surface, and so the excess product on the application surface is discharged to the regions of the annular groove without product.
  • the aim of the present invention is to overcome the above drawbacks and to allow the metering of the amount of product to be dispensed onto the application surface to be controlled, while maintaining an aesthetic appearance of said application surface.
  • a subject of the invention is an assembly for packaging and dispensing a product, in particular a cosmetic product, comprising:
  • a reservoir extending along a longitudinal axis and delimiting an internal volume intended to contain the product and comprising, for example, an opening for accessing said internal volume;
  • a product applicator member which is mounted on the reservoir, in particular the opening thereof, and comprises a hollow body delimiting an internal cavity in fluidic communication with the internal volume of the reservoir and a membrane defining an application surface for the product.
  • the membrane comprises at least two separate product dispensing orifices or ducts that open onto the product application surface, each of the dispensing orifices being provided with an inlet section situated on an internal surface of the membrane which is oriented towards the internal cavity and an outlet section situated on the application surface of the membrane.
  • the assembly for packaging and dispensing a product also comprises an actuating mechanism or member, secured to the reservoir, for dispensing or pushing the product through said dispensing orifices along a product dispensing axis.
  • the section of at least one of the dispensing orifices varies progressively from the inlet section to the outlet section of the orifice in question in a single direction along the product dispensing axis.
  • Each dispensing orifice extends along an axis of extension between the internal surface of the membrane that is oriented towards the internal cavity of the hollow body of the product applicator member and the application surface of the membrane.
  • the “section of the dispensing orifice” means the passage section for the product through the dispensing orifice in question, expressed for example in mm 2 and measured in a plane perpendicular to the axis of extension of the dispensing orifice in question.
  • the “inlet section” of a dispensing orifice means the passage section for the product at the inlet of the dispensing orifice in question which is situated on the internal surface of the membrane that is oriented towards the internal cavity of the hollow body of the product applicator member
  • the “outlet section” of a dispensing orifice means the passage section for the product at the outlet of the dispensing orifice in question which is situated on the application surface of the membrane.
  • the progressive and continuous variation in the section of the dispensing orifices makes it possible to slow down or accelerate the flow of product passing through a particular orifice of the membrane that opens onto the application surface, and thus to make the dispensing of the product onto the application surface more uniform or encourage product to be dispensed onto certain regions of the application surface.
  • the dispensing orifices having a constant section could be situated close to or on the product pushing axis.
  • Controlling the metering of the dispensing of product onto the application surface is made possible by the particular shape of the dispensing orifices and by the continuous change in the section thereof between the inlet section and the outlet section.
  • the section of at least one of the dispensing orifices increases progressively from the inlet section to the outlet section of the orifice in question in a single direction along the product dispensing axis.
  • the section of the dispensing orifice in question increases continuously from its inlet section to its outlet section.
  • the outlet section is identical for all the dispensing orifices and the section of at least one of the dispensing orifices, and in particular of all the dispensing orifices, increases progressively from the inlet section to the outlet section of the orifice in question in a single direction along the product dispensing axis.
  • the application surface keeps its initial shape regardless of the use condition of the product, in particular during the use of the assembly as a lipstick or stick of lipstick.
  • the product may be pasty or viscous, for example a cosmetic product, for example a product for caring for or making up the lips or a product for caring for or making up the epidermis of a user.
  • the product could be any other pasty product, for example a food product or a painting product, adhesive product, etc.
  • the dispensing orifices have different product inlet sections.
  • the application surface is inclined at an angle of between 5° and
  • a dispensing axis that is inclined with respect to the longitudinal axis of the reservoir could be provided, in particular for example when the applicator member has an angled shape.
  • the inlet section of the dispensing orifices may, for example, vary progressively, that is to say continuously, along the application surface of the applicator member, for example depending on the height on the slope of said application surface, so as to achieve uniform dispensing of product onto the application surface allowing the output of product to be slowed down at the dispensing orifices of the first sets, which are fed first on account of the inclination of the application surface.
  • the inlet section of the dispensing orifices increases progressively between the dispensing orifices situated at the bottom of the slope of the application surface and the dispensing orifices situated at the top of the slope of the application surface, the outlet sections of the dispensing orifices preferably being identical to one another.
  • the membrane is made of flexible, elastically deformable material, for example of elastomer, for example of thermoplastic elastomer.
  • the membrane has, for example, a hardness of between 10 and 80 Shore A, preferably less than or equal to 50 Shore A, for example equal to 20 Shore A.
  • the expression “elastically deformable” means any member which, on account of the material used and/or the dimensions thereof, is capable of deforming under the action of loading applied by the product, for example by actuation of the actuating member for moving the product, and is configured to return to its initial position after the loading ceases.
  • the membrane under the effect of the pushing of the product by the actuating member, the membrane is made to bulge outwards and form a flexible application dome.
  • the accumulation of the product under pressure in the internal cavity of the applicator member presses axially on the internal surface of the membrane.
  • Such a flexible membrane ensures a function of comfort on application and allows progressive release of the product by the user pressing against their epidermis the application surface that has bulged under the effect of the pressure applied by the product, the product not being able to flow back to the interior of the reservoir on account of the locking of the member for actuating dispensing.
  • the membrane could be rigid. Provision could also be made for the membrane to be made from the same material as the body of the product applicator member.
  • the surface state of the application surface of the membrane is advantageously adapted to the cosmetic product to be applied and/or depending on the objective of the application of the cosmetic product, and in particular of the makeup product applied by means of this application surface.
  • the application surface of the membrane may, as required, be smooth, have patterns or reliefs, defining localized cavities or a network of cavities for, in particular, “trapping” the cosmetic product to be applied and forming reserves of product on the application surface.
  • the product application surface of the membrane may be flocked, in other words provided with flocking or have spikes, which are advantageously formed in one piece with the membrane and make it possible for example to comb the keratin fibres to which the cosmetic product is applied or to ensure, during application, an effect of massaging a keratin surface to which the cosmetic product is applied.
  • the outlet sections of the dispensing orifices have identical shapes and sizes. This makes it possible to ensure an application surface that has a satisfactory uniform aesthetic appearance.
  • the membrane comprises a plurality of product dispensing orifices having at least two sets of at least one dispensing orifice, the orifices of one and the same set being mutually identical, the number of dispensing orifices of variable section making up between 51% and 100% of the total number of dispensing orifices, each set of dispensing orifices having different product inlet sections.
  • the dispensing orifices mostly have a continuously variable section.
  • the orifices of one and the same set are aligned.
  • the orifices of one and the same set could be disposed in some other way, for example in groups.
  • the plurality of orifices comprises seven sets of dispensing orifices, namely:
  • a seventh set comprising a seventh orifice that has a seventh inlet section larger than the sixth inlet section.
  • the plurality of orifices comprises six sets of dispensing orifices, namely:
  • a fourth set comprising six fourth orifices that each have a fourth inlet section larger than the third inlet section
  • a fifth set comprising two fifth orifices that each have a fifth inlet section smaller than the fourth inlet section and larger than the third inlet section
  • - a sixth set comprising a sixth orifice that has a sixth inlet section larger than the fourth inlet section.
  • At least two orifices, for example four, of the fourth set are grouped together close to the product dispensing axis.
  • the plurality of orifices comprises four sets of dispensing orifices, namely:
  • a fourth set comprising three fourth orifices that each have a fourth inlet section larger than the third inlet section.
  • the orifices of the first set are grouped together in two parallel lines
  • the orifices of the second set are grouped together in two parallel lines
  • the orifices of the third set are aligned
  • the orifices of the fourth set are grouped together in two parallel lines.
  • the orifices may each have a section of constant shape between the inlet section and the outlet section, such as a polygonal, and in particular hexagonal, shape.
  • the inlet section and the outlet section have identical shapes.
  • the section of the orifices could be provided for example circular, elongate or other.
  • the “shape of the section” of an orifice in question means in this case the shape of the contour of the orifice as seen in a plane perpendicular to the axis of extension of the dispensing orifice in question.
  • the plurality of orifices comprises two sets of dispensing orifices, namely:
  • first set comprising two first orifices that each have a first inlet section and a first outlet section that is continuously variable with respect to the first inlet section
  • a second set comprising a second orifice that has a second inlet section and a second outlet section that is continuously variable with respect to the second inlet section, the first outlet section being different from, for example smaller than, the second outlet section, each of the orifices having a section of elongate shape or in the shape of a straight slot extending along the application surface.
  • the inlet section of the dispensing orifices of one and the same set varies progressively along the application surface, that is to say depending on the height on the slope of said application surface.
  • Such a shape of the orifices is particularly advantageous when the application surface is inclined with respect to the product dispensing axis.
  • each dispensing orifice is smaller in the bottom part of said orifice than the inlet section of said orifice situated in the top part of said orifice.
  • the flow of product is slowed down in the bottom parts of the inlet sections of the orifices so as to achieve uniform dispensing of product onto the application surface.
  • the second orifice is advantageously centred on the product dispensing axis.
  • the product applicator member is, for example, separate from the reservoir.
  • the member for actuating the dispensing of product comprises a driving wheel mounted so as to rotate on the lower end of the reservoir, a threaded stem that turns in a drilled hole in the body of the reservoir and is driven in rotation by means of the driving wheel and a piston that is mounted in a meshing manner on the stem and is mounted in the body of the reservoir without being able to rotate relative to the latter.
  • the rotation of the wheel causes the piston to move axially along the dispensing axis and makes it possible to expel a metered amount of product onto the application surface of the applicator member.
  • any other mechanism for pushing the product from the internal volume of the reservoir to the product application surface could be provided.
  • a clicker system could be provided, or a reservoir made of flexible material capable of deforming under the action of loading applied by the user and of returning to its initial shape when said loading ceases could be provided.
  • the internal volume is compressed and allows the ejection of a metered amount of product onto the product application surface.
  • the assembly for packaging and dispensing the product may comprise a mounting member which is secured to the reservoir and to which the applicator member is fixed.
  • the mounting member may be screwed or clip-fastened to the neck of the reservoir.
  • the mounting member comprises a substantially cylindrical mounting skirt comprising a tapped thread that cooperates with the thread of the reservoir and a sealing skirt mounted radially in the neck of the reservoir and in radial contact with the internal surface of said neck.
  • the mounting skirt radially surrounds the sealing skirt.
  • the sealing skirt delimits a circulation channel for the product that opens into the internal volume of the reservoir.
  • the mounting skirt may comprise a fixing collar that extends radially towards the outside from an upper end of the sealing skirt and delimits a groove intended to cooperate with a retaining member of the product applicator member.
  • the body of the applicator member extends axially from an open lower end having the retaining member over the mounting member to an upper end having the membrane.
  • the assembly comprises a protective cap mounted, for example by clip-fastening or screwing, on the product applicator member and a case for covering the assembly formed by the reservoir, the applicator member, the mounting member and the protective cap.
  • the outside diameter of the protective cap is greater than the outside diameter of the body of the product applicator member and advantageously less than or equal to the outside diameter of the body of the reservoir.
  • the invention relates to a product applicator member for an assembly for packaging and dispensing a product, said member comprising a hollow body extending along a longitudinal axis and delimiting an internal cavity and a membrane defining a product application surface, the membrane comprising at least two separate product dispensing orifices or ducts that open onto the product application surface.
  • Each of the dispensing orifices is provided with an inlet section situated on an internal surface of the membrane which is oriented towards the internal cavity and with an outlet section situated on the application surface of the membrane.
  • the section of at least one of the dispensing orifices varies progressively, that is to say continuously, from the inlet section to the outlet section of the orifice in question in a single direction along the longitudinal axis.
  • FIG 1 is a view in axial section of an assembly for packaging and dispensing a product according to one embodiment of the invention
  • FIG 2 is a perspective view of a product applicator member of the assembly in Figure 1 ;
  • FIG 3 is a top view of the product applicator member in Figure 1;
  • FIG 4 is a top view of a product applicator member according to a second embodiment
  • FIG 5 is a top view of a product applicator member according to a third embodiment.
  • FIG 6 is a top view of a product applicator member according to a fourth embodiment. In the rest of the description, reference will be made to an orthonormal basis
  • Figure 1 shows an assembly 1 for packaging and dispensing a product, in particular a cosmetic product.
  • a “product” is understood to be a pasty or viscous product, for example a cosmetic product, for example a product for caring for or making up, in particular for making up the lips, or a product for caring for or making up the epidermis of a user.
  • the product could be any other pasty product, for example a food product or a painting product, adhesive product, etc.
  • the viscosity of the product is, for example, between 2 Pa.s and 55 Pa.s. This viscosity is measured at 25°C, using a Rheomat RM200 viscometer, the measurement being performed after 10 minutes of rotation of the no. 3 spindle in the cosmetic product, at a shear rate of 200 revolutions per minute.
  • the cosmetic product may be relatively fluid and have a viscosity of between 2 Pa.s and 5 Pa.s, preferably between 2.5 Pa.s and 3.5 Pa.s.
  • a cosmetic product having such a viscosity may be for example a skincare product.
  • the cosmetic product may be relatively viscous, relatively thick, and have a viscosity of between 25 Pa.s and 55 Pa.s, preferably between 35 Pa.s and 45 Pa.s.
  • a cosmetic product having such a viscosity may be for example a makeup product, in particular for making up the lips.
  • the assembly 1 for packaging and dispensing the product comprises a reservoir or container 10 containing a product, an applicator member 20 for the product and a mounting member 30 which is secured to the reservoir 10 and to which the applicator member 20 is fixed.
  • the reservoir 10 comprises a hollow body 12 delimiting an internal volume
  • the reservoir 10 extends axially along an axis Z-Z’ that is presumed to be vertical in the figures, from an upper end 16 forming a neck provided with an opening 16a for accessing the internal volume 14 to a lower end 18, on the opposite side from the upper end 16.
  • the body of the reservoir 10 may be made, for example, of rigid synthetic material.
  • the neck 16 may have an outside diameter less than the outside diameter of the body 12 of the reservoir 10.
  • the neck 16 comprises, on its outer surface, a thread 16b on which the mounting member 30 is screwed. Provision could also be made for the mounting member 30 to be fixed to the reservoir 10 by other means, for example by clip-fastening.
  • the assembly 1 also comprises a mechanism or member 40 for actuating the dispensing or pushing of the product in order to bring about the dispensing of a metered amount of product onto an application surface 21 of the applicator member 20.
  • the member 40 for actuating the dispensing of product comprises a driving wheel 41 mounted so as to rotate on the lower end 18 of the reservoir 10, a threaded stem 42 that turns in a drilled hole in the body 12 of the reservoir and is driven in rotation by means of the driving wheel 41 and a piston 43 that is mounted in a meshing manner on the stem 42 and is mounted in the body 12 of the reservoir without being able to rotate relative to the latter.
  • the rotation of the wheel 41 causes the piston 43 to move axially along the axis Z-Z’ and makes it possible to expel a metered amount of product onto the application surface 21 of the applicator member 20.
  • any other mechanism for pushing the product from the internal volume of the reservoir 10 to the product application surface 21 could be provided.
  • a clicker system could be provided, or a reservoir made of flexible material capable of deforming under the action of loading applied by the user and of returning to its initial shape when said loading ceases could be provided.
  • the mounting member 30 comprises a substantially cylindrical mounting skirt 31 comprising a tapped thread 31a that cooperates with the thread 16b of the reservoir 10 and a sealing skirt 32 mounted radially in the neck 16 of the reservoir and in radial contact with the internal surface of said neck.
  • the mounting skirt 31 radially surrounds the sealing skirt 32.
  • the sealing skirt 32 delimits a circulation channel 33 for the product that opens into the internal volume 14 of the reservoir 10.
  • the mounting member 30 also comprises a fixing collar 34 that extends radially towards the outside from an upper end 32a of the sealing skirt 32 and delimits a groove 35 intended to cooperate with a retaining member 22 of the product applicator member 20.
  • the product applicator member 20 comprises a hollow body 23 delimiting an internal cavity 25 in fluidic communication with the circulation channel 33 of the mounting member 30.
  • the internal cavity 25 could be directly in fluidic communication with the internal volume 14 of the reservoir 10.
  • the product applicator member 20 extends axially along an axis Z-Z’, assumed to be vertical in Figure 1, from an open lower end 23 a having the retaining member 22 over the mounting member 30 to an upper end 23b having a membrane 26 defining the product application surface 21.
  • the product applicator member 20 is separate from the reservoir 10.
  • the outside diameter of the body 23 of the product applicator member 20 is advantageously less than or equal to the outside diameter of the body 12 of the reservoir 10 in order to limit the radial size of the assembly 1.
  • the membrane 26 comprises a plurality 27 of product dispensing orifices or ducts that are separate from one another and open onto the product application surface 21.
  • the plurality 27 of orifices comprises seven sets Si of dispensing orifices, where i is the number of sets of orifices.
  • i is the number of sets of orifices.
  • a different number of sets of orifices could be provided, for example more than or equal to two, for example equal to four, for example equal to six or for example more than or equal to eight.
  • Each set of orifices Si comprises one or more dispensing orifices Oi, where i is the number of sets of orifices.
  • the orifices Oi of one and the same set Si are identical.
  • the orifices Oi of one and the same set Si are aligned.
  • the orifices of one and the same set could be disposed in some other way, for example in groups.
  • the orifices Oi each have a section of constant shape between the inlet section and the outlet section, such as a polygonal, and in particular hexagonal, shape.
  • a section of constant shape between the inlet section and the outlet section such as a polygonal, and in particular hexagonal, shape.
  • other shapes could be provided for the inlet and/or outlet section of the orifices, for example circular, elongate or other.
  • Each of the dispensing orifices Oi is delimited by an inlet section situated on the internal surface 26a of the membrane 26 and an outlet section situated on the external surface or application surface 21 of the membrane 26.
  • the section of each of the dispensing orifices Oi varies continuously from the inlet section to the outlet section in a single direction along the product pushing or dispensing axis.
  • the section of the dispensing orifice in question decreases continuously from its inlet section to its outlet section, or the section of the dispensing orifice in question increases continuously from its inlet section to its outlet section.
  • the variation in the section of the dispensing orifices Oi makes it possible to slow down or accelerate the flow of product passing through a particular orifice of the membrane that opens onto the application surface 21, such that is possible for example to make the dispensing of the product onto the application surface 21 more uniform or, by contrast, to favour the dispensing of the product in specific regions of the application surface 21.
  • the dispensing orifices having a constant section could be situated close to or on the product pushing axis.
  • the number of dispensing orifices of variable section may be greater than or equal to 51% of the total number of orifices, for example greater than or equal to 75%.
  • the outlet sections of the dispensing orifices Oi have identical shapes and sizes. This makes it possible to ensure an application surface 21 that has a satisfactory uniform aesthetic appearance.
  • Each set Si of dispensing orifices has different product inlet sections.
  • the plurality of orifices 27 comprises: - a first set S 1 comprising a first orifice OI that has a first inlet section,
  • a third set S3 comprising three third orifices 03 that each have a third inlet section larger than the second inlet section
  • a fourth set S4 comprising two fourth orifices 04 that each have a fourth inlet section larger than the third inlet section
  • a fifth set S5 comprising three fifth orifices 05 that each have a fifth inlet section larger than the fourth inlet section
  • a sixth set S6 comprising two sixth orifices 06 that each have a sixth inlet section larger than the fifth inlet section
  • a seventh set S7 comprising a seventh orifice 07 that has a seventh inlet section larger than the sixth inlet section.
  • the inlet section of the dispensing orifices varies continuously over the application surface 21.
  • the dispensing orifices Oi all have the same outlet section.
  • the second inlet section of the second set S2 of orifices 02 is around 0.65 mm 2 ;
  • the third inlet section of the third set S3 of orifices 03 is around 0.81 mm 2 ;
  • the sixth inlet section of the sixth set S6 of orifices 06 is around 1.92 mm 2 ;
  • the seventh inlet section of the seventh set S7 of orifices 07 is around 2.39 mm 2 .
  • Such values of inlet and outlet sections of the dispensing orifices Oi are particularly suitable for dispensing a product of relatively high viscosity, such as a makeup product, in particular for making up the lips, for example a product having a viscosity of between 25 Pa.s and 55 Pa.s, preferably between 35 Pa.s and 45 Pa.s.
  • This viscosity is measured at 25°C, using a Rheomat RM200 viscometer, the measurement being performed after 10 minutes of rotation of the no. 3 spindle in the cosmetic product, at a shear rate of 200 revolutions per minute.
  • the application surface 21 is in this case inclined at an angle b of around 45° with respect to the axis along which product is dispensed or pushed by the actuating member 40.
  • the application surface 21 could be inclined at an angle b of between 5° and 60° with respect to the product dispensing axis, in other words the axis along which the product is pushed by the actuating member, which corresponds advantageously to the longitudinal axis of the reservoir.
  • the inlet section of the dispensing orifices varies continuously over the application surface 21 depending on the height on the slope of said application surface 21, so as to achieve uniform dispensing of product onto the application surface allowing the output of product to be slowed down at the dispensing orifices of the first sets, which are fed first on account of the inclination of the application surface 21. Controlling the metering of the dispensing of product onto the application surface 21 is made possible by the particular shape of the dispensing orifices 27.
  • the combination of the variation in section between the inlet section and the outlet section of the dispensing orifices Oi and the variation in the inlet sections of the dispensing orifices depending on their height on the slope of the application surface 21 makes it possible to compensate for the inclination of said application surface with respect to the product dispensing axis, so as to achieve uniform dispensing of product onto the application surface.
  • the membrane 26 is made for example of flexible, elastically deformable material, for example of elastomer, for example of thermoplastic elastomer.
  • the membrane 26 has, for example, a hardness of between 10 and 80 Shore A, preferably less than or equal to 50 Shore A, for example equal to 20 Shore A.
  • elastically deformable means any member which, on account of the material used and/or the dimensions thereof, is capable of deforming under the action of loading applied by the product, for example by actuation of the actuating member 40 for moving the product, and is configured to return to its initial position after the loading ceases.
  • the membrane 26 bulges outwards and forms a flexible application dome.
  • the accumulation of the product under pressure in the internal cavity 25 of the applicator member 20 presses axially on the internal surface of the membrane 26.
  • Such a flexible membrane ensures a function of comfort on application and allows progressive release of the product by the user pressing against their epidermis the application surface 21 that has bulged under the effect of the pressure applied by the product, the product not being able to flow back to the interior of the reservoir 10 on account of the locking of the member 40 for actuating dispensing.
  • the membrane 26 could be rigid. Provision could also be made for the membrane 26 to be made from the same material as the body 23 of the product applicator member 20.
  • the assembly 1 comprises a protective cap 50 mounted, for example by clip-fastening or screwing, on the product applicator member 20 and a case 60 for covering the assembly formed by the reservoir 10, the applicator member 20, the mounting member 30 and the protective cap 50.
  • the outside diameter of the protective cap 50 is greater than the outside diameter of the body 23 of the product applicator member 20 and advantageously less than or equal to the outside diameter of the body 12 of the reservoir 10.
  • the plurality 27 of orifices comprises six sets Si of dispensing orifices, where i is the number of sets of orifices.
  • i is the number of sets of orifices.
  • a different number of sets of orifices for example more than or equal to two, could be provided.
  • Each set of orifices Si comprises one or more dispensing orifices Oi, where i is the number of sets of orifices.
  • the orifices Oi of one and the same set are identical.
  • the orifices Oi each have a section of constant shape between the inlet section and the outlet section, such as a polygonal, and in particular hexagonal, shape. As a variant, other shapes could be provided for the section of the orifices, for example circular, elongate or other.
  • Each of the dispensing orifices Oi is delimited by an inlet section situated on the internal surface 26a of the membrane 26 and an outlet section situated on the external surface or application surface 21 of the membrane 26.
  • the outlet sections of the dispensing orifices Oi have identical shapes and sizes.
  • Each set Si of dispensing orifices has different product inlet sections.
  • the plurality of orifices 27 comprises:
  • first set SI comprising a first orifice OI that has a first inlet section
  • second set S2 comprising two second orifices 02 that each have a second inlet section larger than the first inlet section
  • a third set S3 comprising two third orifices 03 that each have a third inlet section larger than the second inlet section
  • a fourth set S4 comprising six fourth orifices 04 that each have a fourth inlet section larger than the third inlet section
  • Four orifices 04 of the fourth set S4 are grouped together close to the product dispensing axis.
  • the inlet section of the dispensing orifices varies over the application surface 21 depending on the height on the slope of said application surface 21, so as to achieve favoured dispensing of product at the centre of the application surface and substantially uniform dispensing over a peripheral region of the application surface.
  • the dispensing orifices Oi all have the same outlet section.
  • the first inlet section of the first set SI of orifices 01 is around 0.55 mm 2 ;
  • the second inlet section of the second set S2 of orifices 02 is around 0.65 mm 2 ;
  • the fifth inlet section of the fifth set S5 of orifices 05 is around 1.5 mm 2 ;
  • the sixth inlet section of the sixth set S6 of orifices 06 is around 2.39 mm 2 .
  • Such values of inlet and outlet sections of the dispensing orifices Oi are particularly suitable for dispensing a product of relatively high viscosity, such as a makeup product, in particular for making up the lips, for example a product having a viscosity of between 25 Pa.s and 55 Pa.s, preferably between 35 Pa.s and 45 Pa.s.
  • This viscosity is measured at 25°C, using a Rheomat RM200 viscometer, the measurement being performed after 10 minutes of rotation of the no. 3 spindle in the cosmetic product, at a shear rate of 200 revolutions per minute.
  • the plurality 27 of orifices comprises four sets Si of dispensing orifices, where i is the number of sets of orifices.
  • i is the number of sets of orifices.
  • a different number of sets of orifices for example more than or equal to two, could be provided.
  • Each set of orifices Si comprises one or more dispensing orifices Oi, where i is the number of sets of orifices.
  • the orifices Oi of one and the same set are identical.
  • the orifices Oi each have a section of constant shape between the inlet section and the outlet section, such as a polygonal, and in particular hexagonal, shape. As a variant, other shapes could be provided for the section of the orifices, for example circular, elongate.
  • Each of the dispensing orifices Oi is delimited by an inlet section situated on the internal surface 26a of the membrane 26 and an outlet section situated on the external surface or application surface 21 of the membrane 26.
  • the outlet sections of the dispensing orifices Oi have identical shapes and sizes.
  • Each set Si of dispensing orifices has different product inlet sections.
  • the plurality of orifices 27 comprises:
  • first set SI comprising three first orifices OI that each have a first inlet section
  • second set S2 comprising five second orifices 02 that each have a second inlet section larger than the first inlet section
  • a fourth set S4 comprising three fourth orifices 04 that each have a fourth inlet section larger than the third inlet section.
  • the orifices OI of the first set SI are grouped together in two parallel lines
  • the orifices 02 of the second set S2 are grouped together in two parallel lines
  • the orifices 03 of the third set S3 are aligned
  • the orifices 04 of the fourth set S4 are grouped together in two parallel lines.
  • the inlet section of the dispensing orifices varies continuously over the application surface 21 depending on the height on the slope of said application surface 21, so as to achieve uniform dispensing of product over the application surface.
  • each of the dispensing orifices Oi is around 2.55 mm 2 ;
  • the first inlet section of the first set SI of orifices 01 is around 0.55 mm 2 ;
  • the second inlet section of the second set S2 of orifices 02 is around 0.65 mm 2 ;
  • the third inlet section of the third set S3 of orifices 03 is around 0.81 mm 2 ;
  • the fourth inlet section of the fourth set S4 of orifices 04 is around 1 mm 2 .
  • Such values of inlet and outlet sections of the dispensing orifices Oi are particularly suitable for dispensing a product of relatively low viscosity, such as a skincare product, for example a product having a viscosity of between 2 Pa.s and 5 Pa.s, preferably between 2.5 Pa.s and 3.5 Pa.s.
  • This viscosity is measured at 25°C, using a Rheomat RM200 viscometer, the measurement being performed after 10 minutes of rotation of the no. 3 spindle in the cosmetic product, at a shear rate of 200 revolutions per minute.
  • the embodiment illustrated in Figure 6, in which identical elements bear the same references, differs from the embodiment illustrated in Figures 1 to 3 by way of the shape of the orifices and the number of sets of orifices.
  • the plurality 27 of orifices comprises two sets Si of dispensing orifices, where i is the number of sets of orifices.
  • Each set of orifices Si comprises one or more dispensing orifices Oi, where i is the number of sets of orifices.
  • the orifices Oi of one and the same set are identical.
  • the orifices Oi each have a section of elongate shape or in the shape of a straight slot extending along the application surface 21.
  • Each of the dispensing orifices Oi is delimited by an inlet section situated on the internal surface 26a of the membrane 26 and an outlet section situated on the external surface or application surface 21 of the membrane 26.
  • each set Si of dispensing orifices has different product inlet and outlet sections.
  • the plurality of orifices 27 comprises:
  • first set SI comprising two first orifices 01 that each have a first inlet section and a first outlet section that is progressively variable with respect to the first inlet section
  • a second set S2 comprising a second orifice 02 that has a second inlet section and a second outlet section that is continuously variable with respect to the second inlet section.
  • the first outlet section is smaller than the second outlet section.
  • the second orifice 02 is centred on the product dispensing axis.
  • the sections of the dispensing orifices vary progressively along the dispensing axis Z-Z’, but also along the application surface 21, that is to say depending on the height on the slope of said application surface 21.
  • Such a shape of the orifices is particularly advantageous when the application surface 21 is inclined with respect to the product dispensing axis Z-Z’ .
  • each dispensing orifice is smaller in the bottom part of said orifice than the inlet section of said orifice situated in the top part of said orifice.
  • the feeding of the application surface with product is controlled during the actuation of the member for actuating the dispensing of the product.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un élément applicateur de produit (20) pour un ensemble servant à des fins de conditionnement et de distribution d'un produit, ledit élément (20) comprenant un corps creux (23) s'étendant le long d'un axe longitudinal et délimitant une cavité interne et une membrane (26) définissant une surface d'application de produit (21), la membrane (26) comprenant au moins deux orifices de distribution de produit distincts (O1, O2, O3, O4, O5, O6, O7) qui donnent sur la surface d'application de produit (21), chacun des orifices de distribution (Oi) comportant une section d'entrée située sur une surface interne de la membrane (26) qui est orientée vers la cavité interne et une section de sortie située sur la surface d'application (21) de la membrane (26). La section d'au moins l'un des orifices de distribution (Oi) varie progressivement de la section d'entrée à la section de sortie de l'orifice en question dans une seule direction le long de l'axe longitudinal.
PCT/EP2021/067538 2020-06-29 2021-06-25 Ensemble de conditionnement et de distribution d'un produit, comprenant un élément applicateur de produit muni d'orifices de section variable en continu WO2022002794A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FRFR2006795 2020-06-29
FR2006795A FR3111777A1 (fr) 2020-06-29 2020-06-29 Ensemble de conditionnement et de distribution de produit comprenant un organe d’application de produit pourvu d’orifices à section variable en continu

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WO2022002794A1 true WO2022002794A1 (fr) 2022-01-06

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU535048B2 (en) * 1980-09-30 1984-03-01 W Braun Co. Wipe-on applicator
FR2727608A1 (fr) 1994-12-06 1996-06-07 Oreal Distributeur pour un produit de consistance liquide a pateuse
EP0786421A1 (fr) * 1996-01-29 1997-07-30 L'oreal Dispositif de conditionnement, de distribution et d'application d'un gel ou mousse
FR2810859B1 (fr) 2000-06-28 2002-09-06 Oreal Dispositif de conditionnement et d'application ayant une surface d'application alimentee de maniere privilegiee en produit
JP3135727U (ja) * 2007-07-13 2007-09-27 株式会社資生堂 粘性化粧料用容器
DE102007022255A1 (de) * 2007-05-09 2008-11-13 Beiersdorf Ag Ausgabeöffnungsplatte für optisch attraktive Antitranspirant Formulierungen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU535048B2 (en) * 1980-09-30 1984-03-01 W Braun Co. Wipe-on applicator
FR2727608A1 (fr) 1994-12-06 1996-06-07 Oreal Distributeur pour un produit de consistance liquide a pateuse
EP0786421A1 (fr) * 1996-01-29 1997-07-30 L'oreal Dispositif de conditionnement, de distribution et d'application d'un gel ou mousse
FR2810859B1 (fr) 2000-06-28 2002-09-06 Oreal Dispositif de conditionnement et d'application ayant une surface d'application alimentee de maniere privilegiee en produit
DE102007022255A1 (de) * 2007-05-09 2008-11-13 Beiersdorf Ag Ausgabeöffnungsplatte für optisch attraktive Antitranspirant Formulierungen
JP3135727U (ja) * 2007-07-13 2007-09-27 株式会社資生堂 粘性化粧料用容器

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