Device for storing and dispensing at least two cosmetic products and related methods
By designing a cosmetic device with an independent storage and dispensing system, the problem of mixing and storing cosmetics before use is solved, a safe and accurate mixing ratio is achieved, and consumer safety is ensured.
Patent Information
- Application Number
- CN202180096639.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-04-06
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2041-04-06
AI Technical Summary
In the prior art, two cosmetics, especially dyes and developers, need to be stored away from mixing to prevent reactions, but it is difficult to ensure a safe and effective mixing ratio when mixing before use.
A device was designed in which a first reservoir and a second reservoir contain a dye and a developer, respectively. Independent dispensers and nozzle systems ensure that sufficient second cosmetic product is available after the first cosmetic product is dispensed. The nozzles are designed as independent conduits to avoid cross-contamination, and separate delivery is achieved by controlling reservoir volume and viscosity differences.
This enables safe and accurate mixing of cosmetics before use, ensuring consumer safety and avoiding product cross-contamination and inappropriate reactions.
Smart Images
Figure CN117136162B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a device for storing and dispensing at least two cosmetic products, comprising:
[0002] - a container defining at least a first reservoir configured to hold a first cosmetic product and a second reservoir configured to hold a second cosmetic product;
[0003] - a first dispenser comprising a first pump and a first sampling tube immersed in a first reservoir;
[0004] - a second dispenser comprising a second pump and a second sampling tube immersed in the second reservoir;
[0005] a dispensing nozzle connected to the first dispenser and the second dispenser, the dispensing nozzle defining at least a duct for dispensing the first and second cosmetic products, the nozzle being movable relative to the container between a rest position and a dispensing position. Background Art
[0006] The device is configured to deliver at least two cosmetic products.
[0007] These two cosmetic products are, for example, care products, make-up products and / or more particularly hair dye products comprising a colorant to be mixed with an oxidizing agent.
[0008] These two cosmetic products should generally be stored in such a way that they are not mixed. They should be stored in separate compartments and only mixed shortly before application. This is especially true if the two cosmetic products are intended to react with each other, as is the case with hair dye products.
[0009] If the mixture of at least two cosmetic products contains an active product, the at least two cosmetic products must be mixed immediately after delivery.
[0010] For example, in hair coloring products that include dyes and developers, the dyes have a high pH between 7 and 11 and contain dye pigments. Using dyes alone can cause skin irritation.
[0011] The color developer has a low pH value below 5.
[0012] Therefore, the dye and developer must be delivered together to create acid-neutral conditions to ensure consumer safety. Summary of the Invention
[0013] To this end, the subject of the invention is a device of the aforementioned type, characterized in that the device is configured so that when the first dispenser has finished delivering the first cosmetic product, the second reservoir still contains some second cosmetic product available for delivery.
[0014] Since the second reservoir still contains some of the second cosmetic available for delivery when the first dispenser has finished delivering the first cosmetic, this ensures that the first cosmetic is not delivered alone in the end. This is particularly useful when the first cosmetic is active and needs to be mixed with the second cosmetic.
[0015] In a variant, the first sampling tube and the second sampling tube each have a free open end that appears in the first reservoir and the second reservoir, respectively, and when the device is held vertically, the free open end of the first sampling tube is positioned at a first height from the bottom of the device, and when the device is held vertically, the free open end of the second sampling tube is positioned at a second height from the bottom of the device, and the first height is at least 5% greater than the second height.
[0016] Providing the first and second sampling tubes with different heights ensures that only one of the two cosmetics is delivered when the first dispenser has finished delivering the first cosmetic.
[0017] In a variation, the container includes a vessel and a shoulder cap mounted on the vessel to upwardly close the vessel, wherein the vessel extends along a longitudinal axis and includes a peripheral wall having an axis and a lower wall, the walls defining an interior volume, wherein the vessel includes a longitudinal partition extending from the lower wall to the shoulder cap, the longitudinal partition separating a first reservoir from a second reservoir, and wherein the lower wall is divided into two parts relative to a plane including the longitudinal partition, the first part being the bottom of the first cosmetic reservoir and having a first surface, and the second part being the bottom of the second cosmetic reservoir and having a second surface, the second surface being at least 2% larger than the first surface.
[0018] The second reservoir having a larger internal sub-volume enables filling with more of the second cosmetic than the first cosmetic, thereby facilitating delivery of only the second cosmetic when the first dispenser has finished delivering the first cosmetic.
[0019] In a variation, the device is configured so that when the first dispenser has finished delivering the first cosmetic product, the second reservoir still contains sufficient second cosmetic product to move the nozzle between the rest position and the dispensing position at least once and deliver the second cosmetic product.
[0020] This feature ensures that enough of the second cosmetic product is delivered when the first dispenser has finished delivering the first cosmetic product so that the user can be aware that only the second cosmetic product has been delivered.
[0021] In a variation, the device is configured to deliver a predetermined ratio of the first cosmetic and the second cosmetic until the first dispenser has completed delivering the first cosmetic;
[0022] The dispensing nozzle comprises two independent conduits, each conduit being connected to the first distributor and the second distributor, respectively, the conduits leading to the outside of the device via independent openings.
[0023] Providing the nozzle with two separate conduits avoids cross contamination of products prior to dispensing.
[0024] In a variant, the first reservoir and the second reservoir are arranged adjacent to each other in the container when the device is held vertically;
[0025] When the device is held vertically, the first reservoir and the second reservoir have the same height;
[0026] The first cosmetic has a first viscosity measured at 20° C. using an M3 spindle, and the second cosmetic has a second viscosity measured at 20° C. using an M3 spindle, the first viscosity being at least 10% greater than the second viscosity.
[0027] Providing the first cosmetic having a first viscosity that is higher than the second viscosity of the second cosmetic makes it easier to deliver the second cosmetic and facilitates delivering only the second cosmetic when the first dispenser has finished delivering the first cosmetic.
[0028] In a variation, the first reservoir contains a first product volume of a first cosmetic product and the second reservoir contains a second product volume of the cosmetic product, and wherein the second product volume is at least 2% greater than a volume of the second cosmetic product calculated to simultaneously deliver the first and second cosmetic products in a predetermined ratio.
[0029] Overfilling the second cosmetic product as compared to the first cosmetic product can facilitate delivery of only the second cosmetic product when the first dispenser has finished delivering the first cosmetic product.
[0030] The present invention also relates to a method for dispensing at least two cosmetic products, comprising:
[0031] - providing a device as described above;
[0032] - moving the nozzle between a rest position and a dispensing position;
[0033] - delivering a first cosmetic product through a first dispenser and a nozzle;
[0034] - delivering the second cosmetic product simultaneously through the second dispenser and the nozzle, and once the first dispenser has finished delivering the first cosmetic product,
[0035] - Deliver only the second cosmetic product. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] The invention will be better understood on reading the following description, which is given by way of example only and with reference to the following drawings, in which:
[0037] - [ Figure 1 ] Figure 1 is a vertical cross-sectional view taken along a vertical mid-plane of the first device for storing and dispensing cosmetics according to the present invention before use;
[0038] - [ Figure 2 ] Figure 2 is similar to when the first dispenser has finished delivering the first cosmetic product after the device is used. Figure 1 View;
[0039] - [ Figure 3 ] Figure 3 yes Figure 1 A bottom view of the first device;
[0040] - [ Figure 4 ] Figure 4 is a perspective view of a container of the first apparatus defining two reservoirs;
[0041] - [ Figure 5 ] Figure 5 is a view of the nozzle used to dispense the product. DETAILED DESCRIPTION
[0042] Figure 1 A first device 10 for storing and dispensing a cosmetic composition is shown.
[0043] A cosmetic composition is, for example, a composition for caring for body surfaces, for making up body surfaces or, preferably, for coloring the keratinous fibers of the user, in particular the user's hair.
[0044] To form a cosmetic composition, at least two cosmetics are mixed.
[0045] According to a preferred embodiment, the first cosmetic is a dye and the second cosmetic is a developer.
[0046] The first cosmetic has a first viscosity measured at 20° C. using an M3 spindle.
[0047] For example, the first viscosity is between 30 Pa.s and 300 Pa.s, more preferably between 20 Pa.s and 65 Pa.s.
[0048] The second cosmetic has a second viscosity measured at 20°C with an M3 spindle.
[0049] For example, the second viscosity is between 5 Pa.s and 200 Pa.s, more preferably between 5 Pa.s and 30 Pa.s.
[0050] Advantageously, the first viscosity is greater than the second viscosity.
[0051] Advantageously, the first viscosity is at least 10%, preferably at least 100%, more preferably at least 200%, even more preferably at least 300% greater than the second viscosity.
[0052] The first cosmetic has a first pH value.
[0053] For example, the first pH value is greater than 7, in particular between 8 and 11.
[0054] The second cosmetic has a second pH value.
[0055] For example, the second pH value is lower than 5, in particular between 2 and 4.
[0056] Advantageously, the first pH value is greater than the second pH value.
[0057] Advantageously, the first pH value is at least 10%, preferably at least 100%, more preferably at least 200%, even more preferably at least 300% greater than the second pH value.
[0058] Reference Figure 1 The device 10 extends along a longitudinal axis AA′, which is vertical here. The device 10 comprises a container 12 defining a first cosmetic reservoir 14 and a second cosmetic reservoir 16 .
[0059] When the device is held upright, the first reservoir 14 and the second reservoir 16 are positioned adjacent to each other in the container.
[0060] The device 10 includes a first cosmetic dispenser 18, a second cosmetic dispenser 20, and a nozzle 22 that moves simultaneously with the first and second dispensers 18, 20 relative to the container 10 to dispense the first and second cosmetics simultaneously.
[0061] The container 12 further includes a vessel 30 and a shoulder 32 mounted on the vessel 30 to close the vessel upwardly.
[0062] Vessel 30 along Figure 1 The vessel comprises a peripheral wall 38 with axis AA′ and a lower wall 40 , the walls 38 , 40 delimiting an internal volume 39 .
[0063] The vessel 30 defines an upper opening closed by a crown 32 and a lower opening closed by a lower wall 40 .
[0064] The vessel 30 also includes a linear longitudinal partition 48 extending from the lower wall 40 to the crown 32 .
[0065] A longitudinal partition 48 separates the first reservoir 14 from the second reservoir 16 .
[0066] The longitudinal partitions 48 are also fluid-tight.
[0067] The first reservoir 14 has a first interior subvolume V1 .
[0068] The second reservoir 16 has a second inner subvolume V2 .
[0069] Advantageously, the second interior sub-volume V2 is at least 2% larger than the first interior sub-volume V1 , preferably at least 3% larger than the first interior sub-volume V1 .
[0070] like Figure 3 As shown, the lower wall 40 is divided into two parts 41 and 41 ′ relative to a plane P1 including the longitudinal partition 48 .
[0071] The first portion 41 is the bottom of the first cosmetic reservoir 14 and has a first surface S1 .
[0072] The second portion 41 ′ is the bottom of the second cosmetic reservoir 16 and has a second surface S2 .
[0073] The second surface S2 is at least 2%, preferably at least 3%, larger than the first surface S1.
[0074] This makes it possible to fill the second reservoir 16 with a larger volume of cosmetic product than is used in the first reservoir 14 .
[0075] The peripheral wall 38 includes an outer shoulder 42 along its upper edge (e.g., Figure 4 as shown) and an annular edge 44 for retaining the shoulder cover 32.
[0076] The lower wall 40 has through-openings 46 which open into the inner volume 39 defined inside the peripheral wall 38. The through-openings 46 open out to the outside of the device 10.
[0077] like Figure 4 As shown, the crown 32 has a peripheral edge 72 .
[0078] The peripheral edge 72 has an oblong shape.
[0079] The crown 32 also includes a first outer sleeve 74 defining a first opening into which the first reservoir opens, and a second outer sleeve 76 defining a second opening into which the second reservoir 16 opens.
[0080] The shoulder cap 32 advantageously has a transversely extending inner space 78 ( Figure 4 ) has two facing protruding protrusions 77.
[0081] The inner space 78 has, for example, a substantially figure eight cross section. According to a variant, the inner space 78 has two square cross sections or two disc-shaped cross sections.
[0082] The first outer sleeve 74 and the second outer sleeve 76 are located beside each other with their axes located on either side of the longitudinal axis AA'.
[0083] Each outer sleeve 74 , 76 has outer fins 84 that project radially out of the sleeve 74 , 76 .
[0084] like Figure 1 As shown, the first dispenser 18 is capable of pumping product from the first reservoir 14 to the nozzle 22 .
[0085] The first dispenser 18 includes a first pump 100 installed in the first reservoir 14 , a movable rod 102 connecting the first pump 100 to the nozzle 22 , and a sampling tube 104 installed upstream of the pump 100 to sample the first cosmetic in the first reservoir 14 .
[0086] The rod 102 is a movable hollow rod which controls the activation of the pump 100. The rod 102 defines a product outlet at the top end of the rod 102. The outlet is inserted into the nozzle 22.
[0087] Displacement of the stem 102 generally parallel to the longitudinal axis AA′ enables dispensing of the first cosmetic product from the sampling tube 104 through the pump 100 to the product outlet.
[0088] The first sampling tube 104 protrudes downward from the first pump 100 .
[0089] The first sampling tube defines a free open end 114 (see Figure 1 ), the free open end 114 is positioned at a first height H1 from the bottom of the device 10, taken along the longitudinal axis AA'.
[0090] The second dispenser 20 includes a second pump 120 similar to the pump 100 , a movable rod 122 , and a second sampling tube 124 .
[0091] As described above, the second pump 120 is capable of dispensing the product sampled through the second sampling tube 124 from the second reservoir 16 to the movable rod 122 and the nozzle 22 .
[0092] The movable rod 122 has a structure similar to that of the rod 102 .
[0093] The product outlets of the rods 102 , 122 are positioned at the same height from the bottom of the container 12 .
[0094] The second sampling tube 124 has a free open end 125 positioned at a second height H2 from the bottom of the device 10 , taken along the longitudinal axis AA′.
[0095] Advantageously, when the device is held vertically, the first height H1 is at least 5% greater than the second height H2.
[0096] Thus, the second cosmetic can be pumped for a longer duration than the first cosmetic.
[0097] The nozzle 22 has a central hub 140 and a protruding pump head 142. Figure 5 In the example of FIG. 1 , the nozzle includes a first dispensing conduit 144 for dispensing a first cosmetic product and a separate second dispensing conduit 146 for dispensing a second cosmetic product, the conduits 144 , 146 being supported by a central hub 140 .
[0098] The central hub 140 comprises a peripheral band 150 extending around the axis AA′, the shape of which is complementary to the shape of the internal space 78 of the crown 32 .
[0099] The peripheral band 150 supports the conduits 144 , 146 .
[0100] The pump head 142 projects radially from the peripheral band 150. In this example, the first and second dispensing ducts 144, 146 are completely distinct and open into external openings 152, 154, respectively, located apart from one another at the ends of the pump head 142.
[0101] exist Figure 5 In the example shown, each distribution conduit 144 , 146 includes an upstream longitudinal portion 156 that receives the respective stem 102 , 122 and a downstream transverse portion 158 that connects the upstream portion 156 to the respective opening 152 , 154 .
[0102] The first cosmetic product received from the first rod 102 flows in the first dispensing conduit 144 to the first opening 152 without coming into contact with the second cosmetic product flowing in the second dispensing conduit 146 from the second rod 122 .
[0103] The nozzle 22 is thus movable in translation parallel to the axis AA′ from an upper rest position in which the cosmetic product is confined in its respective reservoir 14 , 16 , to a lower dispensing position in which the pumps 100 , 120 are activated to dispense the product from the reservoirs 14 , 16 .
[0104] The two raised protrusions 77 of the shoulder cap 32 enable the nozzle 22 to be correctly guided in vertical movement between the rest position and the dispensing position.
[0105] During manufacturing, a first cosmetic product is filled in the first reservoir 14 .
[0106] The first cosmetic filled in the first reservoir 14 has a first product volume V1 ′.
[0107] The first dispenser 18 is then positioned in position on the first outer sleeve 74 of the crown 32 .
[0108] Then, the second cosmetic is filled into the second reservoir 16 .
[0109] The second cosmetic filled in the second reservoir 16 has a second product volume V2 ′.
[0110] The device 10 is configured to deliver a predetermined ratio of the first cosmetic and the second cosmetic until the first dispenser 18 has finished delivering the first cosmetic.
[0111] Advantageously, the second product volume V2 ′ is calculated as a function of the product proportion to be conveyed.
[0112] The product ratio is defined by the volume of the first cosmetic product delivered in one dose per the volume of the second cosmetic product delivered in one dose. For example, if the ratio is 1:2, the volume of the second cosmetic product in one dose is twice the volume of the first cosmetic product.
[0113] It is important that the product ratio remains the same from the first dose of the first cosmetic product to the last dose of the first cosmetic product.
[0114] The second product volume V2' is equal to the sum of the volume of the second cosmetic required to satisfy the ratio and the overfill volume of the second cosmetic.
[0115] The second product volume V2' is at least 3% greater than a volume of the second cosmetic calculated by simultaneously delivering the first cosmetic and the second cosmetic in a predetermined ratio.
[0116] Therefore, only the second cosmetic can be delivered after the last dose of the first cosmetic is delivered together with the second cosmetic in a predetermined ratio.
[0117] When the device 10 is held upright, the first reservoir 14 and the free surface of the first cosmetic product define a first headspace above the first cosmetic product.
[0118] When the device 10 is held upright, the second reservoir 16 and the free surface of the second cosmetic product define a second headspace above the second cosmetic product.
[0119] Advantageously, the second headspace is larger than the first headspace.
[0120] For example, the volume of the second headspace is at least 2%, preferably at least 3%, greater than the volume of the first headspace.
[0121] The second dispenser 20 is then placed in position on the second outer sleeve 76 .
[0122] The respective mobile rod 102 , 122 then projects above the crown 32 parallel to the axis AA′.
[0123] The nozzle 22 is then placed in place on the stem 102, 122. A closure (not shown) is inserted between the top of the crown 32 and the nozzle 22 to prevent the nozzle 22 from moving during storage.
[0124] The use of the device 10 for dispensing cosmetics will now be described.
[0125] When a dose of the first and second cosmetic products is to be dispensed, the user pushes the nozzle 22 downwardly toward the container 12 .
[0126] Advantageously, the translational movement of the nozzle 22 along the axis AA′ is guided by the complementary shapes of the nozzle 22 and of the crown 32 .
[0127] During this movement, the mobile rod 102 , 122 moves downward and activates the pump 100 , 120 .
[0128] In a first step, a first cosmetic product is pumped from the first reservoir 14 in the sampling tube 104 , through the first pump 100 to the first movable rod 102 , and through the first dispensing conduit 144 to the first opening 152 .
[0129] Simultaneously, the second cosmetic is pumped in the sampling tube 124 from the second reservoir, through the second pump 120 , the movable rod 122 , the second dispensing conduit 146 and to the second opening 154 .
[0130] The user can then mix the two products at the outlet of the device 10 , outside of the device 10 .
[0131] In the second step, as Figure 2 As shown, when the last dose of the first cosmetic has been delivered, the second cosmetic is pumped separately.
[0132] Advantageously, when the first dispenser 18 has finished delivering the first cosmetic product, the second reservoir 20 still contains sufficient second cosmetic product to move the nozzle 22 between the rest position and the dispensing position at least once and deliver the second cosmetic product.
[0133] Thus, the device 10 ensures consumer safety by delivering only the second cosmetic product at the end.
Claims
1. A device (10) for storing and dispensing at least two cosmetic products, said device comprising: a container (12) defining at least a first reservoir (14) and a second reservoir (16), the first reservoir being configured to contain a first cosmetic product and the second reservoir being configured to contain a second cosmetic product; a first dispenser (18) comprising a first pump (100) and a first sampling tube (104) immersed in the first reservoir (14); a second dispenser (20) comprising a second pump and a second sampling tube (124) immersed in the second reservoir (16); a dispensing nozzle (22) connected to the first dispenser (18) and the second dispenser (20), the dispensing nozzle (22) defining at least a duct (144, 146) for dispensing the first cosmetic product and the second cosmetic product, the nozzle (22) being movable relative to the container (12) between a rest position and a dispensing position; - characterised in that the device (10) is configured so that when the first dispenser (18) has finished delivering the first cosmetic product, the second reservoir (16) still contains some second cosmetic product available for delivery, wherein the first sampling tube (104) and the second sampling tube (124) each have a free open end (114, 125) respectively appearing in the first reservoir (14) and the second reservoir (16), when the device (10) is held vertically, the free open end (114) of the first sampling tube (104) is positioned at a first height (H1) from the bottom of the device (10), and when the device (10) is held vertically, the free open end (125) of the second sampling tube (124) is positioned at a second height (H2) from the bottom of the device (10), the first height (H1) being at least 5% greater than the second height (H2), The container (12) comprises a vessel (30) and a shoulder (32), the shoulder being mounted on the vessel (30) to close the vessel upwardly, wherein the vessel (30) extends along a longitudinal axis (A-A') and comprises a peripheral wall (38) having the axis (A-A') and a lower wall (40), the walls (38, 40) defining an interior volume, wherein the vessel (30) comprises a longitudinal partition (48) extending from the lower wall (40) to the shoulder (32), the longitudinal partition (48) ) separates the first reservoir (14) and the second reservoir (16), and wherein the lower wall (40) is divided into two parts (41) and (41') relative to a plane (P1) including the longitudinal partition (48), the first part (41) being the bottom of the first cosmetic reservoir (14) and having a first surface (S1), and the second part (41') being the bottom of the second cosmetic reservoir (16) and having a second surface (S2), the second surface (S2) being at least 2% larger than the first surface (S1).
2. The device (10) according to claim 1, wherein The container (12) comprises a vessel (30) and a shoulder cover (32), the shoulder cover being mounted on the vessel (30) to close the vessel upwardly, wherein the vessel (30) extends along a longitudinal axis (A-A') and comprises a peripheral wall (38) having the axis (A-A') and a lower wall (40), the walls (38, 40) defining an internal volume, wherein the vessel (30) comprises a longitudinal partition (48) extending from the lower wall (40) to the shoulder cover (32), the longitudinal partition (48) separating the first reservoir (14) and the second reservoir (16), the first reservoir (14) having a first internal sub-volume (V1) and the second reservoir (16) having a second internal sub-volume (V2), and wherein the second internal sub-volume is at least 2% larger than the first internal sub-volume.
3. The device (10) according to claim 1, wherein The apparatus is configured such that when the first dispenser (18) has completed delivering a first cosmetic product, the second reservoir (16) still contains sufficient second cosmetic product to enable the nozzle (22) to move at least once between the rest position and the dispensing position and deliver the second cosmetic product.
4. The device (10) according to claim 1, wherein The device is configured to deliver a predetermined ratio of a first cosmetic and a second cosmetic until the first dispenser (18) has completed delivering the first cosmetic.
5. The device (10) according to claim 1, wherein The dispensing nozzle (22) comprises two independent conduits (144, 146), each conduit being connected to the first distributor (18) and the second distributor (20), respectively, the conduits (144, 146) leading to the exterior of the device (10) via independent openings.
6. The device (10) according to claim 1, wherein When the device (10) is held vertically, the first reservoir (14) and the second reservoir (16) are arranged adjacent to each other in the container (12).
7. The device (10) according to claim 1, wherein When the device (10) is held vertically, the first reservoir (14) and the second reservoir (16) have the same height.
8. The device (10) according to claim 1, wherein The first cosmetic has a first viscosity measured at 20° C. using an M3 spindle, and the second cosmetic has a second viscosity measured at 20° C. using an M3 spindle, the first viscosity being at least 10% greater than the second viscosity.
9. The device (10) according to claim 1, wherein The first reservoir (14) contains a first product volume (V1') of a first cosmetic product, and the second reservoir (16) contains a second product volume (V2') of the cosmetic product, and wherein the second product volume (V2') is at least 2% greater than a volume of the second cosmetic product calculated to simultaneously deliver the first cosmetic product and the second cosmetic product in a predetermined ratio.
10. A method for dispensing at least two cosmetic products, the method comprising: - providing a device (10) according to claim 1; - moving the nozzle (22) between the rest position and the dispensing position; - delivering a first cosmetic product through the first dispenser (18) and the nozzle (22); - delivering a second cosmetic product simultaneously through said second dispenser (20) and said nozzle (22), and once said first dispenser (18) has finished delivering the first cosmetic product, - Only the second cosmetic product is delivered.