FR3052032A1 - METHODS AND SYSTEMS FOR DISTRIBUTING HAIR PRODUCTS - Google Patents

Abstract

The present invention relates to a dispensing system for a hair treatment product comprising a dispenser receiving at least two cartridges each having a reservoir and containing first and second coloring products and / or permanent and / or smoothing, the dispenser allowing to deliver the mixture products in adjustable proportions, optionally a device for dispensing the mixture product (s) and a device for applying the mixture products. The present invention also relates to a hair dyeing method which comprises providing a coloring mixture from at least two coloring products, the application of these mixtures to an inconspicuous part of the hair, the choice of the color desired, the choice of a coloring product corresponding to the desired color.

Description

METHODS AND SYSTEMS FOR DISTRIBUTING HAIR PRODUCTS

The present invention relates to methods and dispensing systems including hair products, preferably coloring products.

It is known to dye keratinous fibers and in particular human hair with dye compositions containing oxidation dye precursors, generally known as oxidation bases, such as ortho or para-phenylenediamines, ortho or para-aminophenols and heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds which, when combined with oxidizing products, give rise to colored compounds by a process of oxidative condensation.

It is also known that the shades obtained with these oxidation bases can be varied by combining them with couplers or color modifiers, the latter being chosen in particular from aromatic meta-diamines, meta-aminophenols, meta-diphenols and certain heterocyclic compounds such as than indolic compounds.

The variety of molecules involved in the oxidation bases and couplers allows a rich palette of colors to be obtained.

This oxidation dyeing process consists in applying, on the keratinous fibers, oxidation bases or a mixture of oxidation bases and couplers with an oxidizing agent, for example hydrogen peroxide, to be allowed to pause, then to rinse the fibers. The resulting colorations are permanent, strong, and resistant to external agents, including light, weather, washing, perspiration and friction. Generally applied at basic pH, it makes it possible to obtain a dyeing and at the same time a lightening of the fiber which in practice results in the possibility of obtaining a final coloration that is lighter than the original color. In addition, the lightening of the fiber has the advantageous effect of generating a solid color in the case of gray hair, and in the case of naturally pigmented hair, to bring out the color, that is to say to make it more visible.

It is also known to dye keratinous fibers by direct dyeing. The method conventionally used in direct dyeing consists in applying to the keratin fibers direct dyes which are colored and dyestuff molecules having an affinity for the fibers, allowing them to be paused and then rinsing the fibers.

It is known, for example, to use direct dyes of the nitrobenzene, anthraquinone, nitropyridine type, azo, xanthene, acridine, azine dyes or triarylmethane dyes.

The colorations that result are particularly chromatic colorations that are however temporary or semi-permanent because the nature of the interactions that bind the direct dyes to the keratinous fiber, and their desorption of the surface and / or the core of the fiber are responsible for their low dyeing power and their poor resistance to washes or perspiration. These direct dyes are also generally sensitive to light because of the low resistance of the chromophore to photochemical attacks and lead in time to a fading of the hair coloring. In addition, their sensitivity to light is dependent on their uniform distribution or aggregates in the keratin fiber.

It is known to use direct dyes in combination with oxidizing agents. However, direct dyes are generally sensitive to the action of oxidizing agents such as hydrogen peroxide, and reducing agents such as sodium bisulfite, which generally make them difficult to use in direct dye-based direct dyeing compositions. hydrogenated water and based on an alkalinizing agent or in oxidation dyeing compositions in combination with precursors of oxidation bases or couplers type.

Many people want to color their hair to beautify their appearance. These people usually want to hide the white hair or change the color of the hair.

The coloring products are offered to consumers by describing the visual result that can be obtained. But, it is difficult to make an accurate description because many factors play on the final result: 1) The condition of the hair. Indeed, depending on the nature of the hair, its experience, penetration, retention of dyes and therefore the color result will be different. 2) The initial color of the hair. This initial color is related to melanin present in the hair. According to this level of melanin, the lightening step of the fiber, prior to hair coloring brings different levels of blondness 3) The nature of melanin. Depending on its nature, the lightening phenomenon gives different final colors, with more or less shade orange.

Ideally, the person has an idea of the color she wants to get on her hair. From there, she tries to find the product that will give her the desired color. Depending on the coloring product chosen, experience shows that the results obtained may be far from the expected result, sometimes being more blond, darker, more colored, lighter or of a color different from that expected.

Conversion systems exist to better describe the expected result from the original color of the hair. But it is very difficult to deduce the product to use.

Moreover, it is very difficult to efffacerate the color obtained if it does not correspond to the desired color. Even if this possibility exists, it does not allow to return exactly to the original color. The user may try to apply another coloring or if the coloring applied is a permanent color to wait for the hair to grow back

These difficulties lead people who want to color their hair to cover their white hair or change their color, to sometimes give up hair coloring or not dare to change their color.

As a result, these people benefit little from the color richness of the coloring products available. The invention aims in one of its aspects to solve this problem and relates to a hair dyeing process which consists in applying a multitude of coloring products to a limited area and preferably not very visible of the hair and then, in a second step, to choose from the applied products one that gives a color result close to that desired and finally to apply this product on the whole of the hair.

According to another aspect, the subject of the invention is a system for dispensing coloring products comprising at least two compartments, each compartment comprising at least one coloring product, the system making it possible to obtain at least two products of mixture that it is then applied to a plurality of areas of the hair, preferably not very visible areas or on locks that are cut after the final coloration of the whole of the hair.

The term "coloring products" is intended to mean: • compositions containing direct dyes or oxidation dyes • compositions containing oxidants such as hydrogen peroxide, persalts (persulfates, perborates, etc.) • compositions containing agents capable of influencing colorations or the action of the oxidants: alkaline agent, acidic agent, neutralizing agent or non-colored product / dye to allow the dilution of the compositions containing the dyes and / or the oxidizing agents.

The term "mixture products" means a coloring product resulting from the mixing of at least two coloring products. For example, the mixture product may be: A composition containing oxidation dyes + a composition comprising an oxidizing agent with or without an alkaline or acidic agent A composition containing a plurality of oxidation dyes A composition containing direc dyes an oxidizing agent with or without an alkaline or acidic agent • A composition containing direct dyes with or without an alkaline or acidic agent • A composition containing oxidants with or without an alkaline or acidic agent

Preferably, a two-compartment system is used in which: 1) A composition containing oxidation dyes with or without an alkaline agent and / or direct dye 2) A composition containing one or more oxidants.

Or 1) A composition containing oxidation dyes with or without an alkaline agent and / or direct dye + one or more oxidants. 2) Another composition containing oxidation dyes with or without an alkaline + oxidizing agent, the two compositions being different in nature and / or concentrations of oxidation or direct dyes and / or in terms of the rate of oxidation. alkaline agent and or in terms of the oxidant level

Or 1) A composition containing oxidation dyes with or without an alkaline agent or direct dye + one or more oxidants, and 2) A neutral composition (without dye or oxidizer)

According to another embodiment, a three-compartment system is used in which: 1) A composition containing oxidation dyes with or without alkaline agent and / or direct dye 2) A second composition containing oxidation dyes with or without an alkaline agent and / or direct dye, the two compositions being different in nature and / or concentrations of oxidation dyes and or in terms of the level of alkaline agent, and 3) a composition containing a oxidant

Or 1) A composition containing oxidation dyes with or without an alkaline agent and / or direct dye + one or more oxidants, 2) Another composition containing oxidation dyes with or without an alkaline agent and / or direct dye + a or several oxidants, 3) Another composition containing oxidation dyes with or without an alkaline agent and / or direct dye + oxidant, the three compositions being different in nature and / or concentrations of oxidation dyes and / or or direct dye and or in terms of the level of alkaline agent and or in terms of the level of oxidant

Or 1) A composition containing oxidation dyes with or without an alkaline agent and / or direct dye + one or more oxidants, 2) Another composition containing oxidation dyes with or without an alkaline agent and / or direct dye + a or several oxidants, 3) A neutral composition (without oxidant or dye)

The system is then used to deliver a set of mixing products from the different compartments. For example, with the two compartment system, six blend products can be made, such as 0/100 (0% of the product of the first compartment and 100% of the product of the second compartment), 20/80; 40/60, 60/40, 80/20, 100/0.

In another step, preferably immediately after delivery of all of the mixture products, one or more areas of the hair, such as from 1 mm 2 to 4 cm 2, preferably from 4 mm 2 to 1 cm 2, are treated with these mixing products. .

To achieve this application, it is possible to deposit on the hair the mixing products by using the mixing device as an application tool. It is also possible to deposit the mixture products on a support that will be applied to the hair.

Preferably, it is applied in areas with low exposure, such as for example, the inside of the hair. It can also be applied to the tips, or even the cut and harvested tips or points to be cut.

Typically, each blend product makes from 10 mg to 1 g, preferably from 50 mg to 500 mg.

After application, the mixture products are allowed to rest on the hair, typically between about 20/40 minutes, or according to an accelerated process, for example 5/10 min representative of what would be obtained with a normal exposure time. For example ; the accelerated process may include the following steps: a) Heat the area or areas of the hair (about 40-60'Ό or -i-) b) Or heat the whole of the hair c) Or perform a mathematical treatment on the obtained dyer result to approach the dyer result that would have been obtained with a classic exposure time. At the end of the treatment, rinse or do not rinse, in the latter case, it is necessary to wipe the application area.

Then, the coloring obtained for each mixture product is evaluated to choose the result that is considered to be closest to the wish of the person who wishes to color the hair. From there, we can apply the selected product on the whole of the hair.

One can also choose a set of results that is considered close to the desired color to deduce the product or mixture of products to use at the scale of the hair.

To help the user choose the best result, we can achieve a magnification of the colored areas. The user is thus better aware of the colors which facilitates his choice.

One can also use a computer simulation system by which the different colors are displayed on the screen on a hair. To help the choice, the screen can display the face of the person with his hair put in different colors. We can, to help the choice, to make appear the person and his hair in different stagings: Choice of clothes of given or varied colors, choice of decorations ...

The system can display the different colors next to each other, or sequentially. It can also propose intermediate colors that have not been realized but that the system can interpolate or extrapolate based on the colors produced.

For example, if we put in a system with two compartments:

Compartment 1: A composition containing X mol% of para-phenylene diamine and X mol% of resorcinol-8 volumes of oxygenated water-5% of 10% ammonia

Compartment 2: A composition containing 5X mol% of para-phenylene diamine and 5X mol% of resorcinol + 8 volumes of hydrogen peroxide + 5% of 10% ammonia

Then, 3 portions (200 mg each) were delivered with 100/0, 50/50 and 0/100 levels.

Then after 30 minutes, we rinsed and we evaluated that the best result should be between 100/0 and 50/50, it is then possible to show on the screen the simulated colors that would have allowed a mixture 75 / 25. If this color pleases the user, we recommend a product containing 2X mol% of para-phenylene diamine and 2Xmol% of resorcinol + 8 volumes of hydrogen peroxide + 5% of 10% ammonia, since intermediate between the 100 / 0 and 50/50.

In a preferred embodiment of the invention, the system automatically prepares a series of mixtures products (preferably between 4 and 20). Then, after application, rinsing, drying (and possible correction if using an accelerated process with a reduced exposure time), we take a picture of the result with a particular lighting and representative of the viewing conditions. The photo is then analyzed and the system produces on a screen a series of color simulations of the hair. After having chosen the desired color on the hair of the person who wishes to color the hair, the system will indicate the product to be used or the products to be mixed. The coloring product is then applied to the whole of the hair.

The choice of compositions to be used in the system depends on the type of color desired.

For example, in the case the desired color is rather red, it will place in the compartments compositions to produce colors in the world of reds. The same method is applied for hair discoloration by varying the nature and / or amount of oxidizing or bleaching agents.

In a particular embodiment, the system is informed of the nature of the products placed in the compartments. In doing so, the system can, for example, propose, in a list or a commercial catalog, the product to be used or the mixture of products to be produced.

In this case, it is possible to display on a screen simulations of the different colors that can be obtained by producing the mixing products. For example, a color domain is shown in the form of a triangle, and the user himself chooses the color obtained from the mixture products. There is certainly a difference between the simulation and the actual color result on the hairline. Once the user has performed test operations, the system will have a better definition of the behavior of the hair and can then propose more realistic colors. Thus, the system can be used in a new cycle: the user will appear on the screen colors, choose one or a few, then make the mix for a new test session and choice.

The coloring product may contain one or more direct dyes that can be chosen in particular from nitro dyes of the benzene series, cationic direct dyes, azo direct dyes and methine direct dyes.

The coloring product may contain an oxidizing agent. This oxidizing agent may be any oxidizing agent conventionally used for the bleaching of keratinous fibers. The oxidizing agent is preferably chosen from hydrogen peroxide, urea peroxide, alkali metal bromates, persalts such as perborates and persulfates, peracids and oxidase enzymes. The use of hydrogen peroxide is particularly preferred.

The coloring product may contain an oxidation base. This oxidation base may be chosen from the oxidation bases conventionally used in oxidation dyeing, for example paraphenylenediamines, bisphenylalkylenediamines, para-aminophenols, ortho-aminophenols and heterocyclic bases.

The coloring product generally contains a dye carrier consisting of water or a mixture of water and at least one organic solvent to solubilize compounds that are not sufficiently soluble in water. As organic solvent, there may be mentioned for example lower alkanols C1-C4, such as ethanol and isopropanol; polyols and polyol ethers such as 2-butoxyethanol, propylene glycol, propylene glycol monomethyl ether, diethylene glycol monoethyl ether and monomethyl ether, as well as aromatic alcohols such as benzyl alcohol or phenoxyethanol, and mixtures thereof.

The solvents may be present in proportions preferably of between 1 and 40% by weight approximately relative to the total weight of the dye composition, and even more preferably between 5 and 30% by weight approximately.

The coloring product may also contain various adjuvants conventionally used in compositions for dyeing hair, such as anionic, cationic, nonionic, amphoteric, zwitterionic surfactants or mixtures thereof, anionic, cationic, nonionic and nonionic surfactants. ionic, amphoteric, zwitterionic or mixtures thereof, inorganic or organic thickeners, and in particular anionic, cationic, nonionic and amphoteric polymeric associative thickeners, antioxidants, penetration agents, sequestering agents, perfumes, buffers , dispersing agents, conditioning agents such as, for example, volatile or non-volatile silicones, modified or unmodified, film-forming agents, ceramides, preserving agents, opacifying agents.

These adjuvants above are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the coloring product.

Among the acidifying agents that can be used in the coloring product, mention may be made, for example, of mineral or organic acids such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid, lactic acid, sulphonic acids.

Among the alkaline agents that can be used in the coloring product, mention may be made, for example, of ammonia, alkaline carbonates, alkanolamines such as mono-, di- and triethanolamines and their derivatives, hydroxides of sodium or potassium and the compounds of formula (NI) below:

(III) wherein W is a propylene residue optionally substituted by a hydroxyl group or a C1-C4 alkyl radical; Re, R7, Re and Rg, which may be identical or different, represent a hydrogen atom, a C1-C4 alkyl radical or a C1-C4 hydroxyalkyl radical.

The coloring product may be in various forms, such as in the form of liquids, creams, gels, or in any other form suitable for dyeing keratinous fibers, and especially human hair. Distribution system

The dispensing system may consist of a single device operating autonomously, preferably manipulable with one hand, or by a device that operates by interacting with other parts or devices. It may be for example different output interfaces which are mounted on a distributor to apply the product mixtures one after another or in series. It may also be a computer system that exchanges information with the distributor to control it, this computer system comprising for example a portable terminal such as a smartphone, a photophone, a tablet, a personal computer, or a computer. dedicated terminal.

Preferably, the dispenser is arranged to pressurize one or more compartments containing the base product or products, by means of volumetric dosing devices, preferably a motor displacing a piston in the corresponding compartment.

The dispenser may be formed of a housing and at least two or three compartments, and preferably as many engines. For example, the rotation of the motors drives worms, which push the pistons of each compartment. The advance of the pistons is for example controlled by the number of control pulses sent to the motors and / or by the operating time of the latter. The motors can be fed sequentially, or preferably simultaneously.

For example, the motors are fed during a short operating cycle for a short time one after another, or at the same time as the others, so as to distribute corresponding microdoses.

The elementary cycles are repeated, possibly with a pause between them, which allows time for the commodities to flow out of the compartments.

Compartments can be defined by cartridges that retract when empty. Alternatively, the compartments are permanently present and filled again once empty.

Each cartridge can be closed with a removable cap to allow cleaning of the cartridge.

Preferably, the dispenser housing is of elongated shape along a longitudinal axis, which can facilitate its handling, and the cartridges are arranged around this axis in the housing.

Preferably, the cartridges are put in place from the rear, and the mixture is delivered from the front. The introduction of the cartridges can be carried out individually, or alternatively the cartridges constitute a one-piece assembly when they are put in place.

The cartridges may each have a volumetric dosing mechanism, having a piston driven by a dispenser drive mechanism, in a direction accompanied by a decrease in the interior volume containing the base product and an expulsion of the product. It may be interesting that the cartridges have at least one region of their wall that is transparent, to allow to see the color of the product contained inside.

The drive mechanism may comprise a motorization system formed of motors coupled to gearboxes, of elongate shape parallel to the longitudinal axis of the distributor, and arranged between the cartridges. This positioning of the motors and cartridges makes the dispenser particularly compact.

The base product can leak tightly from the corresponding cartridge and then circulate in a channel provided for this purpose in the distributor housing, before leaving it.

The cartridges are advantageously terminated by a nozzle made so that, once the cartridge inserted into the dispenser housing, the end of the nozzle opens flush with the housing. Alternatively, the tip is long enough to protrude from the housing and thus connect different output interfaces may be reported on the valve housing.

Thanks to the drive mechanism with motors for advancing pistons, it is possible to accurately deliver mixtures in very small quantities. Thus, it is possible to deliver the basic products with flow rates of up to 10 μl / s, and preferably with flow rates ranging from 20 to 100 μl / s. It is therefore possible to easily make a mixture of about 10 mg. Such a dispensing system is then ideal for making small touches of makeup, to cover for example a small area of 1 cm2 or less.

It is also possible to make larger quantities of mixture such as those necessary for coloring a portion of the hair. The invention thus has, according to one of its aspects, a dispensing system comprising a dispenser having a housing, and at least one cartridge received in the housing of the ditributeur, this cartridge comprising a body and a movable piston in the body, the housing having a motorized drive mechanism for moving the piston of the cartridge.

Preferably, the cartridge comprises a dispensing nozzle through which the product is dispensed, and this dispensing nozzle is rotated by the drive mechanism to move the piston. The tip may comprise at least one anti-rotation relief, better two anti-rotation pins diametrically opposed. The tip can carry a seal, including an O-ring. Thus, at the cartridge change, the seal is also changed, which makes it possible to overcome the wear of the seal.

The dispenser may include an electronic control board of the motorized drive mechanism, this electronic board being traversed by the end or ends. This can make it possible to make a card extending substantially over the entire section of the dispenser, so to consolidate on a single card all the electronic components of the dispenser, and thus to gain in compactness and reliability. The card may extend substantially perpendicular to the longitudinal axis of the housing. The card can carry a switch controlling the operation of the dispenser.

The dispensing system can be arranged to operate in at least two modes of distribution.

In a first mode, called "continuous", the mixture is distributed as long as pressure is exerted on the control switch.

In a second mode, called "dose", a predefined quantity of the mixture is dispensed with each pressure on the switch.

The tip or ends can lead to one end of the housing. This can reduce the dead volume, as will be detailed later.

The tip or ends may have at their end a closure system to prevent drying of the products in the conduit, for example a healing membrane.

The cartridge may comprise a hollow screw on which the piston is screwed, the piston being able to move axially on the screw when the latter rotates; the piston is prevented from turning in the body of the cartridge. For example, piston friction on the cartridge body may be sufficient to prevent it from rotating as the screw rotates.

Preferably, the rotation is made impossible with a cartridge body of non-circular section and a non-deformable piston.

The torque of the motors can be determined electronically according to the current absorbed, and serve for example to detect a limit of the piston stroke. Information about the torque can be transmitted remotely to a computer system having a human machine interface, to allow monitoring the proper operation of the dispenser.

In order to adjust the hue, the dispensing system according to the invention must allow the user to vary the delivered volume from each compartment.

Preferably, the dispenser is controlled by a computer system, which is integrated in the dispenser, or external to it, the dispenser then being able to exchange information with the computer system by wireless or wired protocol.

The dispenser can thus be controlled to allow the adjustment of the color by simultaneous or sequential distribution, and controlled, of several commodities of different colors.

The distribution of commodities can be continuous; if in this case, the volumes of each of the basic products are distributed in one go, simultaneously or successively.

In the case of a simultaneous distribution, it is useful to be able to adjust the respective flow rates of the various basic products so that the mixture distributed corresponds to that desired at each moment. Such a mode of distribution may be particularly suitable when dispensing the mixture by spraying, using an airbrush. To adjust the flow rates it is possible for example to play on the speed of movement of the pistons, for example, in the case of driving the pistons by a worm by varying the speed of rotation of the motors that drive the screw. The products can also be impulse distributed with a dispensing time and a stopping time at each cycle. By playing on the duty cycle, it is possible to act on the flow.

All products can be delivered simultaneously during the distribution time; alternatively, the cycles of the different products are out of phase, so that a product is distributed during a downtime of the other products.

In a particular embodiment of the invention, the mixture is delivered into a cavity of a container, which can be closed hermetically or otherwise, for example in the form of a cup, into which an applicator can be slid, in particular a stylet or a brush. Such dispensing system is specially adapted for liners, glosses and other formulas applied without direct contact with the hands. This container can be removable.

When not removable, the container can be made with the body of the dispenser. When removable, it can be an output interface among others that can be mounted on the distributor.

The compartments, and in particular the cartridges, may contain all or part of the drive mechanism, and for example the motorization system, or better, a part of the motorization system, and this, in order to reduce the number of moving parts in the dispenser body on the outside of the cartridges. For example, the cartridges include the motor rotor. Once the cartridges are installed in the distributor body, the rotors are brought into interaction with the stators.

The dispensing system is advantageously arranged to allow to start preprogrammed sequences in which the mixture delivered by it is changed continuously or discontinuously. A "degraded" mode makes it possible, for example, to progressively change from a mixture A to a mixture B. In the case of an application by spraying, in particular using an airbrush, this makes it possible to simply perform the gradients. One mode makes it possible, for example, to propose several preprogrammed successive mixtures, the computer system indicating each time the use to be made of it by the user, for example by display on a screen.

In the case of a manual application, the mixtures are distributed for example in a cup. The person applies the corresponding mixture taken from the cup, then cleans the cup and orders the delivery of a new mixture; the operation is repeated several times. The homogenization of the distributed mixtures can be done in different ways depending on the use case. In the case of a manual application, it can be done directly on the application area at the time of application or in the cup before sampling; in the case of an airbrush application, it is the nozzle of the airbrush which serves as a mixing chamber; in the case where the mixture is dispensed into a container for later use, the homogenization can be done by hand or by passing the products distributed in a mixing chamber, located between the dispenser and the container or directly integrated to the container, as detailed later.

The product can be delivered by the distribution system and used extemporaneously.

Continuous use for producing gradient blending products

In this application, the dispensing system, while delivering the mixture product, changes the formulation of the mixture. In addition, the output of the commodities or mixture is moved relative to a container or carrier defining an application surface. In a particular embodiment of the invention, the distribution system is arranged to calculate the evolution of the mixture as a function of the color C1, of an area to be treated and of the color C2, of another zone. treat.

Subsequently, the user will appreciate the result obtained with this gradient. He will identify the color he wants for his hair. Then, the system will be able to indicate to him the product to be used or the mixture of products to realize then to use on the whole of the hair. Mixer built into the output interface

There is an interest in benefiting from a dispensing system capable of delivering a mixture which can be easily used, in particular taken by the user, without requiring an additional mixing action on the part of the latter.

According to one of its aspects, independently or in combination with the other aspects thereof, and in particular the foregoing, the subject of the invention is a distribution system comprising a distributor having commodity output channels and a separable outlet interface of the distributor, this interface having a static mixer, preferably delivering the mixture into a cavity where it can be taken.

Preferably, the static mixer comprises a central chamber communicating with intake channels of the basic products. This central chamber can communicate with a peripheral chamber having a series of partitions that act as baffles for the mixture, and create a shear thereof.

The peripheral chamber may comprise a perforated annular partition defining openings through which the mixture passes while circulating in the peripheral chamber. The central and peripheral chambers can be closed superiorly by a wall which defines the bottom of the cavity receiving the mixture.

The bottom of the peripheral chamber may be helically shaped around the axis of the cup and decreasing in height as one progresses towards the exit. The latter may lead forward a connecting ramp between the bottom of the peripheral chamber and the upper wall of the mixer, this connection ramp being preferably a helical portion extending the helix formed by the bottom wall of the peripheral chamber.

Preferably the peripheral chamber comprises the aforementioned annular partition and radial partitions which force the mixture to circulate alternately between upper and lower regions of the peripheral chamber and between radially inner and outer regions, the mixture circulating for example from an upper region. and radially external to a lower and radially outer region passing through the aforementioned annular partition.

The mixer may comprise an outer body in which is received a part forming the core of the mixer, the outer body radially closing outside the peripheral chamber and having an amount which separates the central and peripheral chambers.

The outer body of the mixer and the core of the mixer can each be made in one piece by injection molding.

Reduced dead volume

There is an interest in reducing product losses during changes in the formulation of the mixture, as well as in allowing the color of the mixture to be varied as quickly as possible during the application, particularly in the case of coupling the dispenser with an airbrush. .

According to one of its aspects, independently or in combination with the other aspects thereof, in particular the foregoing, the subject of the invention is a system for dispensing a coloring product, comprising a distributor receiving at least two cartridges each having a reservoir containing a base product, the latter leaving the cartridge through an outlet channel of the cartridge, this outlet channel opening out of the dispenser or near its outer surface.

The outlet channel can in particular result in a sampling zone of the mixture or in the vicinity thereof, especially less than 5 mm, better within 3 mm, better within 1 mm, better flush.

The cross section of the outlet channel is for example between 1 and 3 mm.

Thus, each basic product from a cartridge can leave the dispenser without mixing with a base product of another cartridge and the dead volume can be minimized that can not be taken and may increase the inertia of the cartridge. system. The product is more readily available without having to flow through specific channels of the dispenser housing, avoiding a tedious purge step if cartridge change. The outside of the dispenser may be the sampling zone of the product, especially when the dispenser is made with a dish not intended to be removed, in which the mixture is dispensed, or an area of the dispenser for mounting an exit interface. removable, which defines the sampling area. This output interface may include a cup as defined above. This mounting area corresponds for example to the end of the distributor housing in the absence of the output interface. The mounting area may be substantially flat and perpendicular to the longitudinal axis of the dispenser housing.

The dispenser may have three commodity cartridges.

The dispenser may have housings for receiving the cartridges, which are preferably removably received in the dispenser. The latter may include passages for conduits of the cartridges defining the output channels.

The length of these ducts is preferably such that the ducts are slightly recessed from the bottom or flush with the cavity for sampling the product, or alternatively slightly recessed or flush with the end face of the distributor housing. defining the mounting area.

These conduits of the cartridges may be tips used to move the pistons within the cartoculars, as detailed above.

Multiple output interfaces

There is a need to be able, by means of the same distribution system, to easily produce coloring mixture products, intended for the test phase and the choice but also larger quantities, intended for application on all or part of the hair.

According to one of its aspects, independently or in combination with the other aspects thereof, and in particular the foregoing, the subject of the invention is a distribution system comprising an assembly comprising one and at least two output interfaces capable of each of which can be removably mounted on the distributor, these output interfaces making it possible to receive the product or products delivered by the distributor, preferably being chosen from the following:

Remote help

It is possible to realize the operations of realization and then application of the products of mixtures in a place, to realize the reading of the results in the same place, then to transmit these results in a second place so that an analysis is made for example by an expert. In doing so, the expert will analyze the results and with expert conversion systems, identify the best product to use. The expert will even be able to propose the best color (the one that is best for aesthetics), and illustrate his choice by a simulation that he can share remotely with the user. The invention, according to one of its aspects, independently or in combination with its other aspects, in particular the foregoing, thus relates to a coloration selection process comprising the steps of: - allowing the establishment of a video link, for example via the internet, between a camera of a first site and a second site, - allow the second site to directly or indirectly control a distributor present on the first site, the distributor for varying the color of a distributed mixing product; allowing a person present at the first site to apply the distributed mixing product and sending a corresponding image to the second site to receive feedback on the coloring results.

Coupling the dispensing system to a means of spraying

The dispensing system may include or be connected to a spray means of the mixture, preferably an airbrush. The invention aims, in another of its aspects, to further improve the distribution systems comprising a spray system, preferably an airbrush, and has for its object, in one of its aspects, independently or in combination with the others aspects, and in particular the above, an assembly comprising: - Spraying means, preferably an airbrush comprising a sampling chamber subjected to a driving air stream, - a dispenser comprising at least two compartments containing products of different products, the products being delivered by means of spraying preferably through separate dispensing orifices.

The dispenser may comprise three cartridges containing coloring products as defined above. The airbrush may include a stylet defining the sample chamber, the stylet attaching to the dispenser or an output interface attached to the dispenser, or integral to this output interface.

The dispensing system may comprise a circuit for controlling the operation of the dispenser, making it possible to vary the proportion of the basic products dispensed in the sampling chamber, during the operation of the airbrush. Proportions can be modified depending on the movement of the airbrush relative to the surface on which the mixture is sprayed. This displacement can be mechanized, if necessary.

This control circuit may comprise or consist of a computer system as defined above.

The dispenser housing can be used as a handle when handling the assembly to dispense the mixture.

The dispenser may include a camera and / or one or more sensors such as accelerometers to automatically locate the area on which the mixture is applied, and to be able to automatically adjust the color depending on the position, if any.

The mixture can be made directly in the airbrush, with virtually no annoying dead volume, thus changing the pulverized mixture in real time.

The depression created in the sampling chamber is sufficient to drive the basic products without interfering with the dosage.

The depression prevailing in the sampling chamber is for example between 10 mbar and 200 mbar.

The viscosity of the base products measured at 1 atm and at 25 ° C. with a CONTRAVES TV rotary viscometer equipped with a mobile MS-r3 or MS-r4 at the frequency of 60 Hz, after 10 minutes of rotation of the mobile, is example between 0.05Pa.S and 50 Pa.S

The section of the arrival channels of the basic products in the chamber is, for example, between 1 and 3 mm. The product feed is preferably carried out continuously. The invention may be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended drawing, in which: FIG. 1 is a schematic view in perspective of an exemplary dispensing system according to the invention, - Figure 2 is a rear view of the dispensing system of Figure 1, - Figure 3 illustrates the product sample delivered by the dispensing system FIG. 4 is a diagrammatic perspective view, with the removal of certain components, of the dispensing system of FIG. 1; FIG. 5 represents separately and partially a base product cartridge for the dispenser; FIG. represents the top of the cartridge with the drive part; - FIG. 7 represents in isolation the drive part, in perspective; - FIG. 8 represents, in isolation, a carrier of the cartridge; represents the drive mechanism of the distributor, - Figure 10 represents one of the motors isolated, coupled to the rest of the drive mechanism, - Figure 11 shows an electronic control board of the motors, - Figure 12 is a section FIG. 13 shows the dispenser housing without the exit interface, FIG. 14 represents, in isolation, a first example of an exit interface, seen from above, FIGS. 15, 15A, 16, 16A. and 17 show further examples of output interfaces, - Figures 18 and 19 are two further views of the output interface of Figure 17, - Figure 20 represents the static mixer in isolation, - Figure 21 is a axial section of the output interface of FIG. 17; FIG. 22 represents another output interface intended to cooperate with an airbrush; FIG. 23 represents in transparency the various channels of the inter FIG. 24 illustrates the output interface of FIGS. 22 and 23 connected to an airbrush, FIGS. 25 to 29 show other examples of output interfaces, FIG. illustrates the control of the dispenser using a portable terminal, - Figure 31 shows an example of a graphical interface for controlling the dispenser. FIG. 32 represents another example of a graphical interface, FIG. 33 illustrates an example of the evolution of the graphical interface of FIG. 32 during the use of the device, FIG. 34 represents another example of FIG. GUI, FIGS. 35 and 36 show other examples of graphical interfaces, FIG. 37 illustrates the evolution of the interface of FIG. 36 during the use of the device, FIG. a block diagram illustrating steps of an exemplary method according to the invention, - Figure 41 is a view similar to Figure 40 other examples of methods, - Figure 45 shows an example of support for the application of several different colored compositions, - Figure 47 illustrates a system for the exchange of information with a remote advisor, and - Figure 48 illustrates a carrier having a plurality of housing containing mixtures. are different.

The dispensing system 10, according to the invention, shown in FIGS. 1 and 2, comprises a distributor 11 which is provided in the upper part with an exit interface 110 through which the dispensing of a cosmetic formulation product takes place. customized. The dispenser 11 can be manipulated with one hand. Its length, excluding output interface, is for example between 140 and 160 mm and its diameter between 40 and 60 mm.

The dispensing system 10 may comprise, as illustrated, an actuating means for controlling the dispensing, for example a push-button 12. When the user presses the push-button 12, the dispenser 11 delivers the product from information that has been previously communicated by a computer system, for example using a wireless transmission, as will be detailed below. The operation of the push button 12 can be programmed from an interface of the computer system, so as to continuously deliver the mixture as long as pressure is exerted, or to deliver only a predefined dose, regardless of the duration during which the user supports on the push button.

As can be seen in particular in FIG. 4, the dispenser 11 houses several cartridges 30 each containing a base product, the dispenser 11 making it possible to determine the quantity of each of the basic products which is dispensed so as to obtain, after mixing the dispensed doses, a product having the desired properties. Each of the cartridges 30 can be introduced into the housing of the distributor 11 from the rear, as shown in FIG. 2. In the example considered, the dispenser 11 receives three cartridges 30, but the invention also extends to the case where the number of cartridges 30 is different. In particular, certain aspects of the invention also apply to the case of a single cartridge received in the dispenser housing.

FIG. 5 shows a cartridge 30. It comprises a body 31 in which a piston 32 can be displaced along the longitudinal axis X of the cartridge so as to reduce the volume of a reservoir 33 located under the piston 32, containing the corresponding basic product. The volume of the reservoir is preferably between 2 and 5 mL, being for example of the order of 3 mL.

The piston 32 is driven in displacement along the axis X by a hollow rod 34, threaded externally, engaging with a corresponding thread passing through the piston 32.

The rod 34 defines a channel through which the product contained in the tank 33 can circulate when the piston 32 moves in the body 31 in the direction of a decrease in the volume of the tank 33.

The rod 34 is rotated about the X axis by a head 36 which is rotatable relative to the body 31, and communicates with a cannula 37. Each cartridge 30 is mounted in the dispenser 11 with a support piece 40, which FIG. 8, which comprises an axially slotted clamping sleeve 41, on which a locking ring 43, visible in FIG. 4, can be shown in isolation. When a cartridge 30 is put in place, the part 40 is engaged thereon, on the opposite side to the cannula 37, and the locking ring 43 moved on the sleeve 41 to clamp the support piece 40 on the body 31. The support piece 40 can immobilize the cartridge 30 in the dispenser housing 11.

The head 36 of the cartridge 30, having the cannula 37, is capped by a drive member 50, shown in isolation in Figure 7, which clamps the head 36 so as to be rotatable about the axis X with it.

When the drive part 50 is rotated about the X axis, its rotation is transmitted to the head 36, which can rotate relative to the body 31 and rotate with it the rod 34.

The frictional force of the piston 30 on the inner surface of the body 31 is sufficient so that the piston 32 does not rotate relative to the body 31, so that the relative rotation of the rod 34 and the piston 32 causes the displacement thereof along the axis X. This displacement is accompanied by a decrease in the volume of the tank 33 and a rise of the base product contained in the cartridge 30 by the rod 34, then in the cannula 37.

The drive part 50 comprises an internal channel 52 fed by the cannula 37 and which opens out through a dispensing orifice 53. This channel 52 is formed by a nozzle 36. The drive piece 50 has a skirt assembly 54 which axially covers the head 36 of the cartridge 30. This mounting skirt 54 is connected by a transverse wall 55 to the endpiece 56. The endpiece 56 has reliefs 57 allowing its coupling in rotation with a toothed wheel 60, visible in particular in Figure 9, belonging to a drive mechanism of the distributor housing 11.

In the example under consideration, the reliefs 57 are in the form of two diametrically opposed lugs protruding on the endpiece 56 at its base, which engage in corresponding notches of the toothed wheel 60. The endpiece 56 has a narrowed portion which has a groove hosting an O-ring 58. The narrowed portion is connected by a shoulder 59 to the rest of the tip.

The head 36 of the cartridge 30 may carry an O-ring which provides a tight coupling between the cannula 37 and the drive part 50.

The drive mechanism comprises electric motors 70, equipped with reducers 71, visible in particular in FIG. 10. The output shaft of these reducers is coupled to a drive wheel 72 which meshes with the toothed wheel 60.

In the example under consideration, the longitudinal X axes of each of the cartridges are arranged at 120 ° relative to each other around the longitudinal axis Y of the distributor housing 11.

The motors 70 are arranged between the cartridges 30, the axes of rotation of the motors being also arranged at 120 ° from each other around the Y axis of the distributor 11. In this way, a compact construction of the distributor 11 is obtained. Motor gearboxes advantageously have a torque greater than 70nN.m. For example, a Maxon 118392 reference motor is used in conjunction with the Maxon 218418 planetary gearbox. Such a motor has a diameter of 10 mm, a power of 1.5 W, a nominal voltage of 3 V, an idle speed of 1300 rpm and maximum torque. 1.5 mNm. The gearbox has a diameter of 10 mm, an absolute reduction of 256/1 and a torque of 0.2 Nm.

An electronic circuit 81, shown in isolation in FIG. 11, is present in the vicinity of the upper end of the distributor 1 housing. This electronic circuit 81 comprises a card 80 which is traversed by passages 83 for the output axes of the reducers. 71, as well as openings 82 for the narrowed portions 55 of the drive endpieces 56.

Sleeves 82a may be attached to the card 80 to provide a barrier against possible product leakage to the card 80. The tips 56 pass through the sleeves 82a, preferably with little clearance.

The card 80 carries the aforementioned push-button 12 and supports a number of output pins 86 serving to supply the motors 70.

The electronic circuit 81 comprises a microcontroller or the like making it possible to control the various motors 70, in order to distribute the desired quantity of each of the basic products. The delivery resolution of the base products is for example between 0.001 and 0.003 ml, being for example of the order of 0.0025 ml.

The distributor housing 11 also houses a battery whose accumulators 89 are advantageously as shown in FIG. 4, each in the extension of an engine 70.

Preferably, as illustrated in FIG. 30, the control of the dispenser 11 is carried out using a computer system 100 such as a portable terminal, for example a smart phone, for example a tablet of the "Ipad" brand. or a personal computer.

The transmission of the control information of the distributor 11 by the terminal 100 is preferably wireless, for example by a Bluetooth connection.

In a particular example, the electronic card 81 makes it possible to manage the following points: • calculation of the volume of each product to be delivered according to the volume fraction setpoint of each product, the operating mode (continuous, dose or purge), the value of the flow rate or the volume, • measurement of the power supply currents of the motors 70, • Bluetooth communication with the computer system 100, • management of the button 12 for delivering the products, • management of the on / off switch, • management the LED display (s), • battery charge.

The card 80 comprises, for example, the following components: • Texas Instrument CC2541 microcontroller, • Blue CMS led to give status information to the user, • Protective thermal fuse, • 32 MHz quartz, • On / Off switch

The Texas Instrument CC2541 microcontroller incorporates a 256 kB RAM programmable flash memory as well as many features. This microcontroller can be programmed in C, in the embedded Embedded Workbench environment.

The outlet ports 53 of the cartridges 30 open substantially at the upper end of the distributor housing 11, as can be seen in Figure 13 in particular. The upper face 14 of the distributor housing 11 defines a receiving surface for mounting an output interface which channels the products from the cartridges to a sampling or dispensing area.

In the example of Figure 1, this output interface 110 is in the form of an insert, which is shown in isolation in Figure 14, which has at its periphery as illustrated passages 111 for screws The output interface 110 defines in this example a cup 115 in the bottom of which open out feed ports 116, each communicating via an internal channel to the output interface. 110 with a respective output port 53.

Thus, in the example considered, the basic products contained in the cartridges 30 can be distributed to the cup 115 without mixing.

When using the dispenser 11, the user can fill the cup 115 with predefined proportions of each of the basic products, as illustrated in FIG. 3, then can take the product present in the cup 115 in order to apply it. . This sampling can be performed for example on the finger, as illustrated, or with any suitable cosmetic applicator. The cup 115 is preferably shallow, which facilitates cleaning, and diameter sufficiently large not to hinder access to the product. The depth p of the cup 115 is thus preferably between 1 and 5 mm and its diameter d or that of the circumscribed circle when the crucible contour is not circular, is preferably between 20 and 50 mm. We have preferably 4> = d / p <= 50.

The feed orifices 116 are preferably of diameter less than 3 mm, for example of the order of 1 mm. The output interface 110 can receive a closure cover 118 of the cup 115, to prevent the product from drying or being exposed to soiling in the absence of use. This cover 118 is preferably made of transparent plastic material and can be fixed by friction, screwing or snapping on the upright of the cup 115, or more generally at any suitable place on the output interface 110.

The maximum capacity of the cup 115 is preferably between 0.02 and 0.25 ml.

Preferably, the volume defined by the volume of the internal channels of the output interface 110 between the inlet therein from the supply orifices 53 to the supply orifices 116 is less than or equal to 0.4 ml .

The housing of the distributor 11, in its configuration illustrated in FIG. 13, that is without the output interface 110 described above, has the advantage of being able to be coupled to various forms of other output interfaces. depending on the makeup that is desired and / or the area to be treated.

Thus, there is shown in Figure 15 an alternative output interface 110 having a dispensing nozzle 150, oriented generally along an axis Z which extends obliquely with respect to the longitudinal axis Y of the distributor 11. Three internal channels respectively communicate with the outlets 53 of the different cartridges 30 and open at the end of the tip 150. The output interface 110 can be mounted at one end of the housing of the distributor 11, as shown in Figure 15A.

In the variant of Figure 16, the output interface 110 comprises three cannulas 160 which communicate respectively with the outlet ports 53. These cannulas 160 are grouped in the center of the output interface 110, which allows mounting on those for example a tip 170 for applying the product on the eyelashes, as shown in FIG. 25, with a porous tip 180 for application to the lips, as illustrated in FIG. 27, or a flocked tip 190 such as a felt tip, as shown in FIG.

In the case of the end piece 170 of Figure 25, it comprises for example, as shown, striations 171 transverse, between which open product supply ports. The mixture of the different basic products can take place inside the nozzle 170, thanks to an integrated static mixer, for example. The tip 180 comprises for example an open cell foam part, having the shape of the lips. The mixture of the base products can be made within an internal conduit of the nozzle 180. The nozzle 190 may comprise a porous applicator member 191, at the end of a rod 192, connected to a base 193 for mounting on the rest of the output interface of Figure 16.

FIG. 16A schematically illustrates the possibility of having as an outlet interface 110 a cup 115 having passages 115a for outlet ducts 30a of the cartridges, including when these ducts are used for the drive-in drive. threaded rods for moving the pistons. The length of the conduits 30a is such that they open into the bottom 115b of the cup or near its bottom, without projecting therein.

Preferably, the internal section of the conduits 30a is small, to minimize the dead volume.

In the example of FIGS. 22 to 24, the output interface 110 comprises a tip 200 which is oriented generally obliquely with respect to the longitudinal axis Y of the distributor. This tip 200 is traversed by internal channels 210, respectively communicating with the outlet ports 53 of the base products from the cartridges 30. The output interface 110 has a mounting portion 215 which allows the attachment on the output interface 110 of an airbrush 220, as shown in Figure 24. The tip 200 is fixed in place of the usual tank of the airbrush and the channels 210 open into the nozzle of the airbrush where they are subject to the depression created by the speed of the drive airflow.

A clamp is formed by two uprights 216, to receive the body of the stylet of the airbrush 220, and ensure its maintenance snap.

Preferably, the orientation of the tip 200 is such that it allows the spraying axis to be oriented substantially perpendicular to the longitudinal axis of the dispenser housing 11. It can then be used as a handle to manipulate the airbrush.

The outlet orifices 210 are advantageously very close together, being separated by thin internal partitions of the endpiece 200.

Preferably, the section of each of the outlet orifices is less than or equal to 3 mm 2 over a length of at least 5 mm.

It is also possible to provide the distributor housing 11 at the top with a support movable relative to the housing, for example in the form of a turret 250, as shown in FIG.

This turret 250 rotates for example around an axis of rotation which coincides with the longitudinal axis Y of the distributor.

The turret 250 may comprise several housings 255 each able to accommodate the products delivered by the distributor 11 in a corresponding filling position. To successively fill the different housings, the turret 250 is rotated, for example by a quarter turn, each time. The presence of several housings 255 can make it possible to distribute products of different formulations, from different basic products, for example to vary the shade of the products present in the different housing 255.

The dispenser 11 can be used to deliver a mixture whose formulation changes over time and collect the mixture in a container movable with respect to the dispenser, so that the mixture is deposited at a location of the container which varies with time, to make a gradient.

For example, as illustrated in FIGS. 29A and 29B, the dispensing system includes an exit interface 110 having a stationary portion relative to the dispenser and a movable portion 252 having a housing 253 for receiving the mixture.

For example, the dispenser 11 is disposed in this case with the cartridge outlets downwards, and equipped with a mixer, so that the mixture falls under the effect of its weight in the housing 253. An engine can move the movable portion of the output interface relative to the dispenser in a manner synchronized with the variation of the characteristics of the mixture, such that a gradient is obtained along the path 253, as shown in FIG. 29B.

The dispensing system may comprise a base 254 which keeps the dispenser upside down. The output interface 110, especially when it comprises a cup, may comprise a static mixer which ensures the mixing of the basic products.

FIGS. 17 to 21 show an output interface 110 comprising such a static mixer.

This output interface 110 may comprise an outer body 260 which is fixed on the housing of the distributor 11 and which has an outer tubular upright 270.

The body 260 includes channels 261 for the admission of the different basic products. These channels 261 open into a central chamber 262, delimited by an inner tubular upright 263.

This amount 263 is crossed by an opening 264 which opens into an annular space 265, between the inner pillar 263 and the outer pillar 270.

A static mixer core 280, shown in isolation in FIG. 20, is disposed in this space 265.

The central chamber 262 can communicate with a peripheral chamber having a series of partitions formed by the core of the mixer and which act as baffles for mixing, and create a shear thereof.

The peripheral chamber may comprise a perforated annular partition 284 defining openings 285, one of which is visible in FIG. 21, through which the mixture passes while circulating in the peripheral chamber. The central and peripheral chambers can be closed superiorly by a wall 286 which defines the bottom of the cavity receiving the mixture.

The bottom 287 of the peripheral chamber may be helical in shape and decreasing in height as one progresses towards the exit. The latter can lead forward a ramp 288 connecting the bottom 287 of the peripheral chamber and the upper wall 286 of the mixer, this connecting ramp being preferably a helical portion extending the helix formed by the wall of bottom of the peripheral chamber.

Preferably the peripheral chamber comprises the aforementioned annular partition and radial partitions 281 which force the mixture to circulate alternately between upper and lower regions of the peripheral chamber and between radially inner and outer regions, the mixture circulating for example from a region upper and radially outer to a lower and radially outer region passing through the aforementioned annular partition.

The body 260 radially closes the peripheral chamber.

The outer body 260 of the mixer and the core 280 of the mixer can each be made in one piece by injection molding.

The product gains the core 280 from the static mixer through passage 264, and flows between uprights 263 and 270 over substantially a complete circumference, to exit 282.

The many baffles imposed by the partitions 281 cause an intimate mixing of the components introduced into the output interface 110. The resulting mixture can be taken by the user in the housing 283, above the static mixer.

As indicated above, the distribution system 10 according to the invention preferably comprises a human-machine interface which enables the user to drive the dispenser 11 easily and intuitively. This interface can belong to a computer system 100 which communicates with the computer. distributor 11.

FIGS. 31 to 37 show various examples of tactile interfaces that can enable the user to choose the color of the mixture resulting from the metered distribution of the various basic products.

This interface may have, as illustrated in Figure 31, a color selection area, for example in the form of a triangle whose verticescorrespond to the colors of each of the basic products contained in the cartridges. The user can move a cursor 300, for example in the form of a ball, relative to the vertices A, B and C of the triangle.

The closer it gets the cursor 300 to one of the vertices, the larger the fraction of the corresponding basic product in relation to the total quantity of the different products distributed.

The fraction of each product in relation to the total amount can be indicated at 301 by a numerical value on the interface. The interface may allow the user to increment or decrease the quantity of each of the products, for example by acting on control buttons 302, which allow a precise adjustment of the quantity of each of the basic products.

The surface of the triangle 310 may have a color that varies locally so as to be representative at each point of the color of the mixture resulting from the weighting of the different basic products in proportions corresponding to the relative coordinates at this point. The interface may include a button 305 for accessing a specific product volume adjustment menu that is dispensed to purge the dispenser. The interface can also advantageously allow an adjustment of the product flow through buttons 304 and 306 to a specific menu for setting the flow.

In the example under consideration, the interface offers the choice between a continuous distribution mode, thanks to the button 304, where the products are distributed as long as the user presses the control button 12.

The corresponding dose can be transmitted to the interface and displayed.

The button 306 makes it possible to select an operation in dose mode, in which a very brief press on the button 12 triggers the dispensing of a predefined dose.

To vary the flow, the distributor acts for example on the duty cycle of motors. The interface can be arranged to allow the user to program or memorize the settings that are his preference, through a menu 307 access to favorites. The touch interface illustrated in FIG. 32 shows on the screen three colored zones 400, each corresponding to the color of one of the basic products contained in the dispenser 10, and a central zone 410 showing the color of the mixture. resulting.

The relative quantity of each of the basic products can be adjusted by means of sliders 415 which move for example on lines joining each of the zones 400 to the central zone 410.

During the use of the interface, it can memorize a given setting and display on the screen a button 420 of the color of the mixture. The user can then, by simply pressing this button 420, distribute a mixture of the corresponding color.

In the example of FIG. 34, the interface displays in a zone 500 a given hue, and proposes to the user, by means of control buttons 510 each of the color of the corresponding basic product, to increase or reduce the proportion of this base product in the final mixture. The color of the area 500 is recalculated according to the actions on the control buttons 510.

In the variant of Figure 35, the interface shows a color chart having several areas 530 each corresponding to a particular proportion of different commodities. The user can select one of these areas, for example by pressing on it with his finger.

Examples

A dispenser 11 is made as shown in FIG. 3. The dispenser is arranged to communicate with a tablet 100 such as an Ipad. This computer system runs an application called "pMix" developed in the specific environment of Apple (XCode 4 and iOS Simulator) in Objective C language.

It uses basic frameworks Foundation, UIKit and CoreGraphics, providing tools for handling data structures, calculation tools and features related to the graphical user interface. The application also uses the CoreBluetooth framework providing access to Bluetoth 4 Low Energy devices with the following main tasks: • Searching for Bluetooth 4.0 Low Energy devices, • Connecting / disconnecting and managing connection parameters, • Communication in read mode and / or or writing based on the GATT (Generic Attribute Profile) architecture. The application offers the following functionalities: • Definition of the fractions of basic products, • Choice of the operating mode when pressing the control button12, namely continuous, purge or dose, • Display of a fractional triangle voluminal as shown in Figure 30 with touch-sensitive volume fraction management on the triangle or by the +/- buttons associated with each product, • Bluetooth connection / disconnection and real-time transfer of the instructions to the distributor, • Settings of the flow rates in continuous mode, and quantity in dose mode, • Calculation, display and transfer to the distributor of the volume fractions of the products in real time, according to the set point, with the sum of the fractions always equal to 100%, • Recovery and displaying the couples of the three motors in real time, and • Saving the main parameters in a configuration file.

Continuous mode is a distribution mode where the mixture of the three basic products is dispensed as long as the user presses the dispense button 12. The product is delivered with a rate of which an estimate is displayed above the button 304 Continuous >>. The choice of the flow is done in a menu "Settings".

The "dose" mode is a mode of distribution of the mixture per dose, where the dose is delivered following a user pulse on the dispensing button 12. A pulse is sufficient and the user can then release the button. The overall dose of the product dispensed is that indicated above the button 306 "Dose", 0.1 ml for example. This volume can be changed in the "Settings" menu.

The "purge" mode is a dispensing mode where a dose of mixture with equal volume fractions (33%) is delivered as soon as the user has pressed the dispensing button 12, as in the "Dose" mode. One pulse is enough and the user can then release the button. When the dose has been fully distributed, the button can be released. If you release before the end, the distribution stops, even if the specified volume is not reached. The overall dose of dispensed product is that indicated above a 305 "Purge" button, for example 3 ml. This volume can be changed in the Settings menu. The user determines the desired color with the application that runs on the tablet and calculates the fractions of different products. The tablet communicates this value to the distributor via Bluetooth connection. The electronics integrated in the dispenser 11 retrieves the information and automatically adjusts the flow rates of the three cartridges so as to obtain a mixture of the desired color.

When the user wants to use the product, he presses the button 12 of the dispenser to get the product out. He presses as long as he wants the product, in "continuous" mode. In "dose" mode, the user presses button 12 once and the preset dose is delivered.

The distribution can be continuous, that is to say, the motors operate continuously, the entire volume being distributed in one go, or iteratively, the motors then operating in a pulsating manner; in this case, the time interval between two pulses makes it possible to vary the flow rate. Small volumes are delivered one after another in several steps.

The pulses can be separated for example by intervals of 50 ms, 100 ms or 200 ms. The duration of a pulse during which the motor rotates is, for example, from 50 to 150 ms.

The main page of the "pMix" application contains in this example the following elements, as can be seen in particular in Figure 31: • Status bar at the top of the screen: indicates the status of the Bluetooth connection or pMix if there is no Bluetooth connection; • Tab bar at the bottom of the screen: to select the active page main page. Settings, Bluetooth, Products and Favorites; • Continuous button 304 to select the continuous product delivery mode; • Purge 305 button to select purge mode; • Dose 306 button to select the dose distribution mode with the dose volume associated with the Dose button; • Blue ball 300 that the user can move in the volume triangle by dragging it or with a double tap; • Buttons "-" 302 for each product A, B and C: decreases the selected product fraction by moving along the line connecting the point to the vertex of the selected product; • "+" buttons 302 for each product A, B and C: increases the selected product fraction by moving along the line connecting the point to the vertex of the selected product; • Percent volume fraction of each product: modifiable by the user and updated in real time according to the setpoint of the buttons 302 + and - and the position of the ball 300.

When changing the volume fractions by moving the bale or the + and - buttons, the volume fraction values of products A, B and C are automatically updated. When the volume fractions are changed with the -I- and - buttons, the ball 300 is automatically moved to the corresponding position on the triangle.

When starting the application executed on the tablet, it automatically connects to the distributor 11 if it is detected. When the dispenser turns off or the Bluetooth connection is cut off, the tablet disconnects. When the user acts on the sliders for adjusting the proportions of the products A and B, the values are transmitted in real time to the distributor 11.

The Application Setup page contains the following: - Status bar at the top of the screen: Indicates the status of the Bluetooth or pMix connection if there is no Bluetooth connection; - Tab bar at the bottom of the screen: to select the active page: main page, Settings, Bluetooth or Info; - Part "Volumes" with a field of text to fill by the user to define the volume of the dose, in ml (2 ml for example) and a field for the volume of the purge, in ml (3 ml for example) . The minimum doses in this example are 0.023 ml and the maximum doses 9.90 ml (3 x 3.3 ml); - Part "Flow" with flow selection: fast ("0.03 ml / s), medium (" 0.02 ml / s) or slow ("0.01 ml / s); - Part "Dose" with the choice of the iterative mixture, to dispense a mixture of products with small volumes delivered one after the other in several steps;

Otherwise, the total volume of each product is distributed in one go; - Part "Image Triangle" to choose the image of the triangle that will be displayed on the main page in order to be able to display a triangle with the colors delivered by the distributor 11. By using a button "Choice image" of the page "Settings" one access to an album.

The "Products" page of the application includes the following elements in the example considered: - Choice of the value of each product in units of encoder steps, from 0 to 1414.

Each unit corresponds to a delivered product volume of 2.33 μΙ, which is the smallest quantity that the dispenser in this example can deliver; when this sheet is displayed, it is the product values of this sheet that are transmitted in real time to the distributor. As soon as the sheet is no longer displayed, the values sent to the distributor are those of the main sheet with the triangle; - Display of motor torque A, B and C in real time with refreshment every 45 values.

The delivery mode of products is the direct or iterative dose mode, depending on the option chosen in the Adjustment sheet.

The "Favorites" page allows you to save configurations as a file. It gives access in the example considered to 10 files, namely "Configuration 1" to "ConfigurationIO" in addition to the default file. These files, for example, record the following parameters:

- fractions of products A, B and C - volume of Purge - volume of Dose, - fast, medium or slow flow, - Dose, Purge or Continuous mode, - continuous or iterative distribution.

Example 1

Several coloring products are produced from the following commercial products:

Al: Majirel staining product 8.30 + Oxidant based on hydrogen peroxide at 20 V (1/1 mixture). B1: Majirouge Mix 6.64 + Hydrogen peroxide oxidant at 20 V (1/1 mixture).

Cl: Majirel 4.15 + Hydrogen Peroxide Oxidizer at 20 V (1: 1 mixture).

These 3 blends are placed in cartridges and cartridges in the dispensing system. The system then produces 13 mixtures 50/50/0, 50/0/50, 0/50/50, 50/25/25, 25/50/25, 25/25/50, 33/33/34, 66 / 34/0, 66/0/34, 34/66/0, 34/0/66, 0/34/66, 0/66/34.

Test 1: On brown hair (Ton 4 height).

Each mixture is applied per 100 mg dose to small areas of brown hair (1 cm 2). Each zone is spaced from the other by 1 cm.

After 30 minutes, the hair is rinsed and dried. We then take a picture of the set and then enlarge the image on the screen. Then, we choose the color corresponding to the mixture 50/25/25 as being the most satisfactory, this choice taking into account the treated hair. Then, one carries out the mixture (with the hand) corresponding in sufficient quantity for an application on the whole of the hair.

Test 2: On brown hair (Height of Ton 6.5).

On this chunk, it is desired to achieve a color approaching the result of test 1. It is not known a priori, which product or mixture to use.

Then prepared according to the method of preparation described in test 1, mixing products which are applied per dose of 100 mg on small areas of 1 cm2 hair.

After 30 minutes, the hair is rinsed and dried. We then take a picture of the set and then enlarge the image on the screen. Then, we choose the color that seems closest to the 50/25/25 mixture obtained during test 1. In doing so, we select the mixture 33/33/34.

Then, we realize the mixture (by hand) corresponding to 33/33/34 that is applied on all the hair chatain. The result is then very close starting from a different hair.

Example 2

Two coloring products are produced from the following commercial products:

Al: Majiblond coloring product (1/2 tube or 25 ml) + Hydrogen peroxide oxidizer at 20 V (25 ml) + 25 g water. B1: Majiblond (1/2 tube or 25 ml) + Hydrogen peroxide oxidizer at 40 V (25 ml) + 1 sachet of lightening concentrate (25 g)

These 2 blends are placed in cartridges and cartridges in the preparation system of the blending products. The system then produces 13 mix products 100/0, 90/10, 80/20, 70/30, 60/40, 0/50, 40/60, 30/70, 20/80, 10/90, 0 / 100.

Each mixture product is applied per 100 mg dose to small areas of hair (1 cm 2) spaced 1 cm apart.

After 30 minutes, the hair is rinsed and dried. We then take a picture of the set of colors obtained and enlarge the image on the screen. Then, we send the photo to a hairdresser at a distance. This one chooses the color (60/40) which seems the most satisfactory and proposes it at a distance. After acceptance, the hairdresser prepares the chosen oxidant. He also prepares a packet of 10 g of concentrate.

Then, it sends a kit containing a tube of Majiblond + the chosen oxidant formulation and the bag. It also sends a procedure to follow. (Mix 72 tubes of Majiblond + the oxidant formula and the sachet).

Claims (10)

A system (10) for dispensing a hair treatment product comprising a dispenser receiving at least two cartridges (30) each having a reservoir and containing first and second coloring and / or permanent and / or smoothing products, the dispenser for delivering the mixture products in adjustable proportions, optionally a device for dispensing the mixture or mixtures and a device for applying the mixing products. 2. System according to claim 1 wherein the dispensing system makes it possible to dispense coloring products. 3. System according to claim 1 or 2, the first and second staining products are chosen from staining compositions comprising at least one direct dye and / or an oxidation dye, an oxidizing agent, an alkaline agent, an agent acid, a neutralizing agent or an undyed / non-dyeing product to allow the dilution of the compositions containing the dyes and / or the oxidizing agents. A system according to any one of the preceding claims, comprising a third cartridge (30) with a third coloring product. 5. System according to any one of the preceding claims, the cartridges being received removably in the dispenser. 6. System according to any one of claims, each product leaving the cartridge by an outlet channel of the cartridge, the outlet channel being defined by a dispensing nozzle (56) of the cartridge driven relative rotation relative to a cartridge body by a dispenser drive mechanism for dispensing the colorant contained in the cartridge. A method of dyeing hair which comprises providing a coloring mixture from at least two coloring products, the mixture being obtained from the system defined according to claims 1 to 6. The application of these mixtures to a not very visible part of the hair, the choice of the desired color, the choice of a coloring product corresponding to the desired color. 8. The method of claim 7 comprising an additional step of preparing a coloring product in an amount such that it can be applied to the whole of the hair from the selection of the coloring product corresponding to the desired color. 9. The method of claim 7 wherein the coloring mixture (s) are prepared in an amount of less than 1 g and applied for testing purposes, preferably on an inconspicuous part of the hair or a portion cut off before application. selected mixture of coiordination at the time of the test and applied to the whole of the hair. The method of claim 9 wherein, after testing and selecting the staining mixture, the selected staining mixture is prepared in an amount sufficient to fully stain the hair.