System for treating the hair, to be connected to a water inlet

Abstract

A system for treating the hair, to be connected to a water inlet, that includes at least one source of a cosmetic product, a water-dispensing device to convey the water to the hair, an adjustment device making it possible to inject, into the water, the product originating from the at least one source of product and to vary the content of product originating from this source in the water conveyed to the hair by the dispensing device and/or the amount of product conveyed to the hair by the dispensing device, this adjustment being able to assume at least one intermediate value between minimum and maximum content and/or amount values, a pressure booster to increase the pressure of the water at the inlet of the dispensing device beyond the pressure of the water at the inlet of the system.

Claims

1. A system for treating the hair, to be connected to a water inlet, comprising: at least one source of a cosmetic product, a water-dispensing device to convey the water, loaded or not with product, to the hair, an adjustment device making it possible to inject, into the water, the product of said at least one source of product and to vary the content of said product in the water conveyed to the hair by the water-dispensing device and/or the amount of product conveyed to the hair by the water-dispensing device, this adjustment assuming at least one intermediate value between minimum and maximum content and/or amount values, a pressure booster to increase the pressure of the water at an inlet of the water-dispensing device beyond the pressure of the water at the inlet of the system, the system being configured to access a database giving information relating to the formulation of catalogue products and to identify one or more catalogue products as a function at least of the knowledge of at least one selected setting and of at least one item of infoimation input by a user relating to an observed treatment result.

2. The system as claimed in claim 1, the water-dispensing device comprising nozzles causing a first jet of water and a second jet of water leaving the water-dispensing device to collide.

3. The system as claimed in claim 1, the content of product injected into the water being between 0.3 and 20% by weight, especially between 0.3 and 10%.

4. The system as claimed in claim 1, being configured to automatically vary the content of product according to a predefined program.

5. The system as claimed in claim 1, comprising at least two sources of different products, the proportion of each product in the water dispensed by the water-dispensing device being selectively varied by the adjustment device.

6. The system as claimed in claim 5, in which the content of each of the products automatically varying according to a predefined program.

7. The system as claimed in claim 1, in which a setting is stored in memory.

8. The system as claimed in claim 1, in which the amount of product injected into the water is adjusted as a function of a flow rate selected by a user to obtain a desired concentration.

9. The system as claimed in claim 1, in which a concentration of product is automatically pre-adjusted as a function of at least one item of information input into the system by the user.

10. The system as claimed in claim 1, in which data relative to a result obtained after drying and/or styling the hair is imputed, and an optional modification of the setting at the next treatment of the hair as a function of this data is automatically proposed.

11. The system as claimed in claim 1, the system comprising a sink, the hair being treated in a the sink, the system being configured to control an outlet of this sink.

12. The system as claimed in claim 1, in which, according to a predefined program, the content of product and/or the amount of product conveyed to the hair by the water-dispensing device is automatically varied so as to assume at least two intermediate values between minimum and maximum values.

13. The system as claimed in claim 1, the injection of the product into the water taking place upstream of the water-dispensing device.

14. A process for the treatment of the hair by means of a system as claimed in claim 1, in which the content of at least one product is varied in the water conveyed to the hair.

15. The process as claimed in claim 14, in which a part of the hair is treated with a given setting, then the setting is modified to treat another part of the hair.

16. The process as claimed in claim 14, in which a setting corresponding to a result deemed to be satisfactory is stored in memory.

17. The process as claimed in claim 14, in which the system automatically varies the amount of a product in the water conveyed to the hair and stores in memory an item of information input by a user when the result is considered to be satisfactory by said user.

18. The process as claimed in claim 14, in which the hair being treated in a treatment sink, opening or closing of the outlet of the treatment sink is controlled as a function of the nature of the operation taking place.

19. The process as claimed in claim 14, in which different sequences of treatments are tested on different parts of a hair.

20. The process as claimed in claim 19, at least two sequences differing per one rinsing duration.

21. The process as claimed in claim 19, at least two sequences differing by the presence or absence of a pre-shampooing operation, a conditioning operation or a rinsing operation.

22. The system as claimed in claim 1, the hair being treated in a sink, the system being configured to open or close an outlet of this sink as a function of the treatment or rinsing requirement.

23. A system for treating the hair, to be connected to a water inlet, comprising: at least one source of a cosmetic product; a water-dispensing device to convey the water, loaded or not with product, to the hair; an adjustment device making it possible to inject, into the water, the product of said at least one source of product and to vary the content of said product in the water conveyed to the hair by the water-dispensing device and/or the amount of product conveyed to the hair by the water-dispensing device, this adjustment assuming at least one intermediate value between minimum and maximum content and/or amount values; and a pressure booster to increase the pressure of the water at an inlet of the water-dispensing device beyond the pressure of the water at the inlet of the system, wherein data relative to a result obtained after drying and/or styling the hair is imputed, and an optional modification of the setting at the next treatment of the hair as a function of this data is automatically proposed.

24. A process for the treatment of the hair by means of a system for treating the hair, to be connected to a water inlet, comprising: at least one source of a cosmetic product; a water-dispensing device to convey the water, loaded or not with product, to the hair; an adjustment device making it possible to inject, into the water, the product of said at least one source of product and to vary the content of said product in the water conveyed to the hair by the water-dispensing device and/or the amount of product conveyed to the hair by the water-dispensing device, this adjustment assuming at least one intermediate value between minimum and maximum content and/or amount values; and a pressure booster to increase the pressure of the water at an inlet of the water-dispensing device beyond the pressure of the water at the inlet of the system, wherein the content of at least one product is varied in the water conveyed to the hair, and wherein the system automatically varies the amount of a product in the water conveyed to the hair and stores in memory an item of information input by the user when the result is considered to be satisfactory by said user.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further features and advantages of the present invention will become apparent from reading the following detailed description of nonlimiting exemplary embodiments thereof and from examining the appended drawing, in which:

(2) FIG. 1 is a partial schematic representation of an example of a treatment system according to the invention,

(3) FIG. 2 illustrates various steps of an example of a process according to the invention, and

(4) FIG. 3 illustrates various steps of a process variant according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

(5) System

(6) FIG. 1 represents a system 1 according to the invention, to be connected to a cold water inlet C and preferably also, as illustrated, to a hot water inlet H.

(7) This system 1 is intended to be used in a hairdressing salon to treat the hair B of a client whose head is positioned over a washing sink 10 which serves to collect the water and the product(s) used to treat the hair. This sink is, as is known per se, connected to an outlet system for waste water. The system 1 comprises a certain number of connectors and pipes which make it possible to convey the water to a dispensing device 11 such as a small shower connected to a flexible hose 12.

(8) In accordance with the invention, the system 1 comprises one or more sources of products for treating the hair, for example two products P1 and P2 in the example in question, contained in respective tanks 21 and 22.

(9) A collection device makes it possible to collect, in a dosed manner, each of the products P1 and P2 with a view to dispensing them via the dispensing device 11. The different products P1, P2 are dosed under the control of an adjustment device 30 comprising, in the example in question, an electronic unit provided with computer means enabling it to communicate with a user interface 40, schematically represented in FIG. 1, and also with one or more databases, in this instance numbering two, with the references BD1 and BD2 in the example in question.

(10) The database BD1 gives information relating to the characteristics of the commercial products, referred to as “catalogue” products, present on the market, and preferably also indicates, from among the products referenced, those which are available in stock in the salon to be sold to clients or available in stock in an online shop which will send the products to the clients. The database BD2 gives information relating to the characteristics of the products used by the system 1.

(11) In a variant embodiment of the invention, the system 1 only comprises a single product and the adjustment device 30 may vary the amount and/or the concentration of this product during the treatment of the hair B.

(12) In the illustrated example, the system 1 comprises temperature control means, such as a mixer 24, controlled by the adjustment device 30, to mix hot water with cold water in order to dispense water with the dispensing device 11 at the desired temperature.

(13) The system 1 may also comprise a flowmeter 25, giving information to the adjustment device 30 relating to the flow rate of the water conveyed to the dispensing device 11, and, by integration, relating to the amount of water dispensed.

(14) The system 1 may also, where appropriate, comprise one or more other sensors, not illustrated, giving information to the adjustment device 30 relating to the amount and/or the flow rate of each of the products conveyed to the dispensing device 11.

(15) In the illustrated example, the products P1 and P2 are collected by means of metering pumps 26, for example of peristaltic type or having a motorized piston, controlled by the adjustment device 30. Nonreturn valves 27 may be present downstream of the pumps 26, these valves 27 opening under the dispensing pressure of the pumps 26.

(16) It may prove beneficial to convey the water to the hair with a low flow rate, by increasing the pressure provided at the dispensing device 11 by means of a pressure booster 50. An example of a dispensing device operating with a low flow rate is disclosed in application WO 2007/062536 A2. The dispensing device then comprises nozzles which direct jets which converge on one another, in order to cause them to break up.

(17) The product(s) used by the system 1 are for example products for treating the hair used during the shampooing thereof, and more generally during a client's session at the sink in the salon. They may be conditioning treatments, masks, shampoos, pre-shampoos or conditioners.

(18) The products may especially comprise anionic surfactants, amphoteric surfactants, cationic polymers and/or silicones. The products may especially comprise sulfate-containing or non-sulfate-containing, nonionic or cationic surfactants, polymers, especially carbon-based or silicone polymers, thickeners, fatty substances such as oils and/or waxes, water and optional solvents.

(19) Each product P1, P2 is preferably contained in a container which is easily connected to the system 1. For example, the system 1 comprises quick connectors, which enables easy replacement of an empty container.

(20) The product(s) may be contained in flexible pouches which deform as they are emptied, so as to enable containers to be emptied without taking up air, for better preservation of said containers.

(21) The initial amount of each treatment product in the corresponding container is for example between 10 ml and 1 liter.

(22) In the example in question, the products P1, P2 are injected into the water which is then conveyed to the dispensing device 11. The adjustment device 30 may control the duration of operation of the pumps 26 and also the flow rate thereof in order to control the amount of product conveyed to the hair B and the flow rate with which the product is injected.

(23) The system 1 may make it possible, by virtue of the user interface 40, to vary the amount of each of the products conveyed to the hair, and also, where appropriate, the concentration of these products in the water which is dispensed by the dispensing device 11.

(24) In variant embodiments, not illustrated, the product(s) are conveyed directly at the dispensing device 11, and the adjustment device 30 controls the amount of each of the products which is dispensed onto the hair by the dispensing device 11. In such an example, the adjustment device 30 then essentially adjusts the amount of each of the products which is conveyed to the hair and not the concentration of the products. It is further possible as a variant to use, as sources of products, the same composition at several concentrations, the products corresponding to these different concentrations being contained in respective containers, and to send the product which corresponds to the selected concentration to the hair by collecting it from the corresponding container.

(25) In another variant embodiment, the system 1 is arranged to carry out pre-mixing of a selected product with water in order to modify the concentration thereof by diluting it, then the result of this mixing is conveyed to the dispensing device 11 via a specific pipe. This makes it possible to avoid diluting each of the products in too great an amount of water and/or improves the dilution of the product in the water, such as, for example, for oil-based products.

(26) As a further variant, the system 1 is arranged to carry out premixing of several products with one another in predetermined ratios in order to produce a mixture to be injected into the water to produce a treatment solution.

(27) The system 1 may further be arranged to convey, to the dispensing device 11, a formula having a ratio between two products, and/or a dilution factor in water of at least one product, which is variable over time and/or as a function of the amount of water dispensed onto the hair. The variation of the ratio(s) may be controlled automatically over time by the system, when executing a test program for example, or be controlled manually by the shampooer.

(28) The system 1 may be arranged to indicate to the shampooer, via the user interface 40, the amount of a product already dispensed onto the hair and/or the amount of product remaining in the corresponding container.

(29) The system 1 may also be arranged to indicate, preferably in real time, the amount of a product remaining to be dispensed and/or to be dispensed during the treatment. The system may be arranged to indicate the amount of water dispensed, and/or the water flow rate, and also the temperature thereof, where appropriate.

(30) All these items of information are, for example, displayed on a screen 41 of the user interface 40.

(31) When the adjustment device 30 has to act on the dilution factor of a selected product, the amount of product which is conveyed by the corresponding pump may be adjusted as a function of the flow rate measured by the flowmeter 25.

(32) The mixture of water and of product or a single product may be conveyed with a flow rate of less than or equal to 4 l/min by the dispensing device 11.

(33) The user interface 40 may be embodied in various ways. Preferably, the user interface 40 is located close to the sink 10, so as to enable the shampooer to modify the treatment parameters and especially to select one or more products to be dispensed onto the hair B and also the amount and/or the content of these products of the water conveyed to the hair. The adjustments are made for example by means of keys 42 making it possible to increase or decrease selection parameters and/or amounts or concentrations.

(34) Where appropriate, the user interface 40 also has a button for setting the temperature of the water, the mixer 24 being for example motorized. As a variant, the system 1 comprises a temperature probe and solenoid valves which make it possible to adjust the flow rate of hot water and of cold water so as to comply with a setpoint temperature.

(35) The user interface 40 may also comprise one or more buttons 44 making it possible to select actions and/or parameters in the menu displayed on the screen 41. In variants, the screen 41 is a touchscreen.

(36) The user interface 40 may further comprise voice recognition and/or be constituted by a terminal of tablet or smartphone type, communicating with the adjustment device 30.

(37) The user interface 40 may receive information transmitted remotely from, for example, a computer of the salon, a tablet or a cell phone.

(38) In one variant, at least part of the user interface 40 is present on the dispensing device 11.

(39) Preferably, the user interface 40 is protected from water splashes and makes it possible to carry out adjustments and/or input information with wet fingers.

(40) The user interface 40 is configured in the described example to enable the shampooer to input one or more items of information relating to the treatment carried out. For example, the shampooer may grade different parameters linked to the use of a product on a predetermined scale of values; for example, the user interface 40 is configured to enable the shampooer to input information relating to the speed of foaming, the volume of foam, the speed of rinsing, the ease of disentangling and/or the effectiveness of cleansing. This information is for example a score, for example a number or a letter, or a symbol, for example of emoticon type.

(41) The user interface 40 may be configured to enable the user to select a pre-recorded and pre-characterized formula. In this case, the system 1 carries out the adjustment which corresponds to the selected formulation.

(42) The user interface may be arranged to enable the user to select a particular test program, with a view, for example, to testing a washing or care product or a particular treatment sequence.

(43) Advantageously, the test program automatically varies at least one treatment parameter, so as to enable the user to test different formulations, for example, on respective parts of the hair. Passing from one test phase to another, with a change in the formulation, for example modification of the concentration of a product or of the amount dispensed, may be indicated by the user interface by emission of a sound and/or visual message; the system may also be arranged to stop and wait for a specific action from the user on a restart button for example, before continuing the test program with the modified formulation.

(44) The adjustment device 30 may comprise a circuit containing a microprocessor or containing a microcontroller and a power interface making it possible to control solenoid valves and/or pumps and/or other motors in order to produce the dosages corresponding to the selected treatment configurations.

(45) Preferably, as illustrated, the adjustment device 30 is arranged to communicate with the databases BD1 and BD2. These databases are, for example, accessible on a computer network of the salon or on a remote server to which the salon is connected, for example via a secure or non-secure Internet connection.

(46) As a variant, the databases BD1 and BD2 are internal to the adjustment device 30, being recorded in a memory thereof. In this case, it is possible to provide, for example, that the adjustment device 30 carries out periodic updates of the information contained in its databases by interrogating a server of the salon or a remote site.

(47) The adjustment device 30 may receive, by virtue, for example, of an analogue and digital interface, signals originating from various sensors, for example of temperature, of pressure and/or of flow rate, and also, where appropriate, signals giving information relating to the filling level of the containers containing the products to be used to treat the hair.

(48) The assembly of the adjustment device 30 may be located close to the washing sink 10, for example in a casing which is sealed against water splashes; as a variant, the adjustment device 30 comprises at least one electronic circuit close to the sink 10 and at least one electronic circuit at a distance, communicating via a wired or wireless connection with the electronic circuit(s) present close to the sink 10.

(49) The system 1 may comprise one or more sensors making it possible to measure at least one characteristic of the hair before cleansing it, for example a comb to be passed through the hair, provided with a microphone or any other sensor which can sense the state of the hair, making it possible to convey a signal representing the state of the hair before treating it. In this case, the adjustment device 30 may be arranged to recommend a setting and/or a choice of products as a function of the evaluation which has been made, making use of reference data for this purpose. The sensor(s) may further be used to evaluate a result of treating the hair by means of the system 1.

(50) In one variant, the system 1 is arranged to display, on the screen 41 of the user interface 40, a questionnaire which the shampooer fills out and, as a function of the results of this questionnaire, to make a suggestion of a setting or of a modification of said setting.

(51) Preferably, the user interface 40 and/or the adjustment device 30 may download data relating to the client whose hair is going to be treated, in order to remind the shampooer of past treatment setting(s), observed result(s) and also the recommended setting(s) for the treatment to be carried out.

(52) The system 1 preferably comprises a means to store at least one setting in memory.

(53) The setting may be stored in memory at the shampooer's request, for example by pressing a button for this purpose on the user interface 40. As a variant, the setting is automatically stored in memory as soon as a treatment result is input. The setting may be stored in memory on a removable memory medium introduced into the adjustment device 30, and/or in a remote database with which the system 1 is in communication.

(54) The system 1 may be configured to control the outlet of the sink 10, by acting, for example, on a solenoid valve 55, in order especially to open it or close it as a function of the treatment or rinsing requirement. For example, when the dispensing device 11 dispenses a product, the outlet is closed so as to enable the user to treat the hair with the amount of water and of product dispensed, the product being in a known amount like the water; once the hair has been treated, the outlet is opened to proceed to the rinsing, for example.

(55) Process

(56) An example of a process for treating the hair according to a first embodiment, making it possible to determine a product in stock to recommend to the client for their personal use, will now be described with reference to FIG. 2.

(57) Firstly, in step 100, the shampooer adjusts the amount of product and/or the concentration of product by virtue of the user interface 40 of the system 1, and may also indicate the choice of product that he or she wishes to use.

(58) As a variant, the shampooer makes the adjustment by adjusting the desired treatment characteristics by virtue of the user interface 40, and the system 1 consults the database BD2 to determine a formula which appears to come close to these criteria.

(59) Adjustment information may be input as mentioned above, following an assessment questionnaire and/or a measurement carried out on the hair of the client whose hair is going to be treated.

(60) It is further possible for the step of selecting the settings to be automatic and to result from downloading data specific to the client whose hair is going to be treated, which data are located for example on a memory medium, such as a USB stick, provided by this client. The data may further be present in a file recorded on their cell phone or downloaded from a database inside the hairdressing salon or outside it.

(61) Downloading data relating to previous treatments undergone by the client may enable the shampooer or the system 1 to propose a setting suggestion when the treatment results observed during previous treatments are not entirely satisfactory.

(62) On the other hand, if the correct settings have been found from previous treatments, for example in terms of products used, amount conveyed to the hair and also, where appropriate, the chronology of use of different products, then the system 1 may simply signal to the shampooer that the setting parameters that the system 1 proposes to use are those which have been considered to be satisfactory during previous treatments, such that the shampooer only has to confirm the proposal made by the system. In order to find the correct settings and/or the correct treatment sequence, the user may have carried out successive tests with the assistance of the system 1 by virtue of pre-existing test programs as described above.

(63) Next, in step 101, the system 1 conveys the selected product(s) to the hair in the concentrations and/or with the amounts selected to carry out the treatment.

(64) A concentration and/or an amount may be adjusted in various ways and for example the shampooer may simply indicate a desired level of strength of the product. For example, the shampooer may select, from the user interface 40, from several degrees such as “less concentrated”, “normal concentration”, “more concentrated” and the system 1 produces the corresponding dosage.

(65) In step 102, the shampooer may observe the treatment results with regard to one or more criteria and, on the basis of these observations, input information into the system 1 by virtue of the user interface 40.

(66) The shampooer may for example grade the following criteria: speed of foaming, volume of foam, speed of rinsing, ease of disentangling and effectiveness of cleansing, classifying them as “satisfactory”, “too high” or “not high enough”.

(67) The system 1 may then, in step 103, compare the observed results with the results expected for the applied product by interrogating the database BD2 for the products used by the system, this database BD2 giving information relating to the same criteria as those which are the subject of the evaluation.

(68) The system 1 is therefore able, when at least one of these evaluated criteria is classified as unsatisfactory for a product used, to generate a new suggestion to come close to the result expected with this product.

(69) The system 1 may also weight criteria according to its assumed importance for the client, and propose a product which favors a result deemed to be a priority for a client.

(70) Once the product(s) which make it possible to best treat the hair have been identified, the system may interrogate, in step 104, the database BD1 in order to determine the catalogue product(s) closest to the treatment conditions tested or the treatment conditions which would have made it possible to come close to the expected result.

(71) As a variant, the system 1 is able, when at least one of the criteria is classified as unsatisfactory with the product used, to interrogate the database BD1 in order to determine the catalogue product(s) having adequate characteristics as a function both of the expected results in light of the product and criteria to improve.

(72) The system 1 may also determine, by interrogating the database BD1 or an additional database inside the salon, the product(s) available in stock in the salon, and on the basis of this interrogation provide a product recommendation in step 105.

(73) When none of the products present in the database BD1 is entirely satisfactory in light of the desired criteria, the system 1 may be arranged to advise a product which comes as close as possible to these criteria and give usage advice to improve the action of the product and come close to these criteria. For example, the system 1 may be arranged to deliver usage advice on a product having a slightly inferior disentangling strength to that desired, by carrying out a shorter rinsing. As a variant, the system 1 advises using a product having a slightly inferior disentangling strength to that desired and a weakly dosed disentangling conditioner.

(74) The system 1 may also be arranged to determine a pair of products to recommend to a client for an adequate treatment of their hair.

(75) The system 1 is configured, in the example in question, to record or propose storing in memory, in step 106, a certain amount of data generated when the client is treated. This data may be combined with a client ID, so as to be able to be recovered subsequently, for example when the client's hair is treated again.

(76) The system 1 may be configured to make it possible to determine a succession of two adequate products, such as a pre-shampoo and a shampoo or a shampoo and a conditioner, making it possible to obtain a desired result.

(77) In a variant embodiment of the invention, the shampooer applies different products or products in different concentrations on respective locks of hair, in order to more readily compare the action of these products or setting on the hair.

(78) For example, the shampooer separates the hair into locks of hair and uses one product per lock of hair to compare the action of different products on the hair, with a view to selecting the most suitable product for the hair. The characteristics of the product retained may then be compared to those of catalogue products from the database BD1 in order to determine the product in stock to be recommended to the client. In this case, the characteristics of the products for which information is given in the database BD1 are, for example, amongst other items of information, the contents of the various components of the formula, for example the level of anionic surfactants, of amphoteric surfactants, cationic polymers and of silicones.

Example 1A

(79) In this example, the system 1 has a database BD1 of commercial products available in stores.

(80) This database BD1 gives information, for each product listed therein, on the following usage characteristics:

(81) 1) Speed of foaming

(82) 2) Speed of rinsing

(83) 3) Detergent strength

(84) 4) Treatment strength, in this instance disentangling strength.

(85) The system 1 also has a database BD2 giving information on the same usage characteristics for the products integrated into the system 1.

(86) In the example, the database BD1 lists the following products A to D:

(87) A. The product A is a simple shampoo with a composition by weight of LES diluted to 15% (by weight) in water. (Sodium Laureth sulfate with 2 ethylene oxide groups containing 70% active material is supplied by BASF under the trade name Texapon N70).

(88) B. The product B is a treatment shampoo, with a composition by weight of LES diluted to 10%, amphoteric surfactants at 5%, JR 400® polymer of the trade name UCARE™ at 0.5%, in water.

(89) C. The product C is a shampoo referred to as a “sulfate-free” shampoo, heavily concentrated in anionic, amphoteric and nonionic surfactants (shampoo of the trade name Everpure, Pure Color® range, from L'Oreal Paris).

(90) D. The product D is a shampoo based on concentrated nonionic surfactant.

(91) The characteristics of the products A to D indicated in the database BD1 are given in the table below.

(92) TABLE-US-00001 A B C D Speed of foaming 3 2 4 2 Volume of foam 3 3 5 3 Speed of rinsing 5 3 3 4 Detergent strength 4 2 5 5 Treatment (disentangling) 2 5 4 3

(93) The value 1 indicates poor performance and the value 5 indicates very good performance.

(94) The shampooer carries out a test on their client with a product X, conveyed into the water of the system 1 and dispensed onto the hair by the dispensing device 11. He or she notes what he or she observes, identifying if the performance is satisfactory, too high or not high enough, classifying them in terms of estimated importance (number 1 corresponding to the least important criterion and number 4 to the most important criterion) for their client. He or she notes the following result:

(95) TABLE-US-00002 Observation with X 1) Speed of foaming Sufficient 2) Volume of foam Sufficient 3) Speed of rinsing Sufficient 4) Treatment Insufficient (disentangling)

(96) The system 1 compares the performance noted by the shampooer relative to the characteristics conventionally expected for the product X in the database BD2.

(97) TABLE-US-00003 Expected with X Speed of foaming 3 Volume of foam 3 Speed of rinsing 5 Treatment (disentangling) 3

(98) Then, seeing the shortfall in what is deemed to be the main criterion, namely criterion 4) relating to the treatment (disentangling) strength, the system 1 searches in the database BD1 for the product which would be best suited to satisfy this criterion.

(99) It identifies two products, B and C, having a superior treatment strength than that of the tested formula and hence being potential candidates.

(100) The system 1 will identify if the formula B should be chosen since it is the most treating.

(101) As the system knows that, by passing to formula B, the foaming and rinsing speeds will be reduced, the system proposes testing B.

(102) The shampooer then registers the performance. He or she notes that the treatment criterion is adequate but that the foaming (speed of foaming) is insufficient for the hair tested.

(103) The system 1 then proposes the formula C, the treatment performance of which remains good and the foaming strength of which is high. He or she registers the performance, arriving at the conclusion that the formula C is preferred, and inputs this information into the system 1.

(104) The system 1 then deduces two pieces of advice which it proposes to the shampooer:

(105) a) Increase the treatment strength by less rinsing, and/or

(106) b) Increase the treatment strength by using a conditioner weakly dosed with cationic surfactant to compensate for the lack of treatment strength.

(107) Process Variant

(108) A variant of a process for treating the hair will now be described with reference to FIG. 3, which variant makes it possible to more easily adapt the product(s) and/or treatment sequences to the client's hair.

(109) Firstly, in step 200, the shampooer selects, by virtue of the user interface 40, a predetermined test program.

(110) This program may provide for: conveying an increasing proportion of a product to the dispensing device 11, conveying a variable proportion, especially an increasing or decreasing proportion, automatically or at the shampooer's request, of one product compared to another to the dispensing device 11, or conveying, automatically or at the shampooer's request, a plurality of products in a given relative proportion, in an increasing amount relative to the amount of water, to the dispensing device 11.

(111) The system 1 may be configured such that the shampooer may, by pressing a key on the user interface 40, manually give an instruction which causes a change in the concentration of the products relative to one another and/or relative to the water.

(112) In a step 201, the shampooer stops the system 1 when he or she observes that the desired result has been obtained, for example that the product is satisfactorily foaming, caring or washing, and identifies the optimal point. The system 1 may then calculate the amount of each product and of water applied in total, to obtain the result deemed to be optimal.

(113) In a step 202, the system 1 may propose several treatment implementations with the proportions of products and of water determined previously and/or refine the determination of the optimal point.

(114) For example, the system 1 is arranged to propose treatment implementations with a higher flow rate of water and of product to reduce the treatment time and optionally a greater amount of product to take into account the greater proportion of product discharged into the sink 10 due to the higher water flow rate. In order to increase the amount of product, it is possible to increase the product application time and/or to increase the proportion of product.

(115) In a step 203, the shampooer rinses the hair and determines the optimal rinsing as a function of their desire or not to keep or remove traces of product on the hair. The system 1 may be configured to record an optimal rinsing parameter and to associate it with the product.

(116) As a variant, for the optimal point determined previously, the system 1 gives the shampooer information relating to the corresponding optimal rinsing parameters.

(117) The system 1 may also make it possible to test successions of different products to determine the most satisfactory succession of products. For example, the system 1 may be configured to convey one of the following sequences to the dispensing device 11: a shampoo, a rinsing solution, especially water, a care product, a rinsing solution, a shampoo, a care product, a rinsing solution, a pre-shampoo, a rinsing solution, a shampoo, a rinsing solution, a care product, a rinsing solution, a pre-shampoo, a shampoo, a rinsing solution, a care product, a rinsing solution, a pre-shampoo, a rinsing solution, a shampoo, a care product, a rinsing solution, a pre-shampoo, a shampoo, a care product, a rinsing solution, a pre-shampoo, a rinsing solution, a shampoo, a rinsing solution, a pre-shampoo, a shampoo, a rinsing solution, a pre-shampoo, a rinsing solution, a care product, a rinsing solution, or a pre-shampoo, a care product, a rinsing solution.

(118) The settings recorded during the optimization of the parameters may be recorded in a client database to be able to be reused during subsequent visits by said client. This makes it possible to gain time during subsequent visits.

Example 1B

(119) In this example, one of the tanks of the system 1 is filled with the following product P1: Product P1: “Ultradoux Camomille et miel de fleur®” shampoo from the Garnier brand, comprising anionic and amphoteric surfactants.

(120) At the time of washing the hair, the shampooer adjusts the system to convey 2.5% of product P1 into the water with a flow rate of 1 l/min. He or she then notes the time at which they achieve a good degree of foaming.

(121) On a first model with short hair, 4.5 seconds are needed to achieve a good degree of foaming, which gives approximately 1.87 g of product P1 conveyed. On a second model with a long hair of approximately 35 cm, 8 seconds are needed, which gives approximately 3.33 g of product P1 conveyed. This data is recorded nominally. The shampooer then rinses. He or she notes the time at which the rinsing is obtained satisfactorily: 20 seconds for the first model, i.e. approximately 0.34 l of water, 35 seconds for the second model, i.e. approximately 0.58 l of water.

(122) The following models are recorded: Model 1: 1.87 g of product P1 conveyed into the water. Rinsing: 0.34 l. Flow rate=1 l/min Model 2: 3.33 g of product P1 conveyed into the water. Rinsing: 0.58 l. Flow rate=1 l/min

(123) Subsequently, the system 1 proposes that the shampooer uses the parameters in the following manner in order to reduce the treatment time: Model 1: 1.87 g of product P1 conveyed into the water at a flow rate of 1.3 l/min, i.e. 3.45 seconds. Rinsing: 0.34 l of water at a flow rate of 1.3 l/min, i.e. 16 seconds. Model 2: 3.33 g of product P1 conveyed into the water at a flow rate of 1.3 l/min, i.e. 6.2 seconds. Rinsing: 0.34 l at a flow rate of 1.3 l/min, i.e. 27 seconds.

(124) If the shampooer subsequently wishes to increase the flow rate, the system 1 recalculates the parameters taking into account any possible losses due to the fact that a portion of the product P1 flows directly into the sink 10 and is discharged directly because of the higher flow rate: Model 1: 2.24 g of product P1 conveyed into the water at a flow rate of 1.8 l/min, i.e. 3 seconds. Rinsing: 0.42 l of water at a flow rate of 1.8 l/min, i.e. 14 seconds. Model 2: 4 g of product P1 conveyed into the water at a flow rate of 1.8 l/min, i.e. 5.4 seconds. Rinsing: 0.65 l at a flow rate of 1.8 l/min, i.e. 22 seconds.

Example 2B

(125) In this example, the tanks 21 and 22 are filled with the following products P1 and P2: Product P1: “Ultradoux Camomille et miel de fleur®” shampoo from the Gamier brand, comprising anionic and amphoteric surfactants, Product P2: “Bain Satin 3” shampoo from the Nutritive range from the Kerastase brand

(126) At the time of washing the hair, the shampooer adjusts the system 1 to convey 4% of product P1 and 0% of product P2 into the water with a flow rate of 1 l/min. He or she treats a quarter of the hair.

(127) He or she then makes a new adjustment with 2% of product P1 and 2% of product P2. He or she treats a second quarter of the hair.

(128) He or she then makes a new adjustment with 0% of product P1 and 4% of product P2. He or she treats a third quarter of the f hair.

(129) He or she then touches the hair and rinses at a flow rate of 1 l/min. He or she carries out the rinsing with 1 l/min of water for 50 seconds. He or she notes the best touch sensations during rinsing and after rinsing. He or she determines that the best setting is that corresponding to 0% of product P1 and 4% of product P2 which he or she may then store in memory in the system 1 and use subsequently.

Example 3B

(130) In the continuation of example 2B, the shampooer takes the setting he or she had chosen, i.e. 0% of product P1 and 4% of product P2. They reproduce the test from example 2B, but with the following settings: 1st quarter hair: 1% of product P1, 3% of product P2, 2nd quarter hair: 1.5% of product P1, 2.5% of product P2, 3rd quarter hair: 0.5% of product P1, 3.5% of product P2, and 4th quarter hair: 0% of product P1, 4% of product P2.

(131) He or she carries out the rinsing with a water flow rate of 1 l/min for 50 seconds.

(132) He or she selects the best setting as a function of the results observed on the different quarter heads of hair, in this instance that corresponding to the third quarter treated, which he or she may then subsequently use.

Example 4B

(133) In the continuation of example 3B, the shampooer takes the setting he or she had previously chosen, namely 0.5% of product P1 and 3.5% of product P2. They reproduce the test from example 2B, but with the following settings: 1st quarter: 0.5% of product P1, 3.5% of product P2, 30 seconds of rinsing at 1 l/min, 2nd quarter: 0.5% of product P1, 3.5% of product P2, 20 seconds of rinsing at 1 l/min, 3rd quarter: 0.5% of product P1, 3.5% of product P2, 10 seconds of rinsing at 1 l/min, and 4th quarter: 0.5% of product P1, 3.5% of product P2, 50 seconds of rinsing at 1 l/min.

(134) After rinsing, he or she touches the hair then dries it. He or she selects the best rinsing operation, which he or she may store in memory in the system 1 and subsequently reproduce.

Example 5B

(135) The shampooer reproduces the example 2B, placing the following products P1 and P2 in the tanks of the system 1: Product P1: Product concentrated in washing active agent, containing amphoteric surfactants and LES. Sum of 12% and 7% of active material. The amphoteric surfactant is disodium cocoamphodiacetate at 38% in water, and is supplied by Rhodia under the trade name Miranol C2M. The LES (Sodium Laureth sulfate with 2 ethylene oxide groups containing 70% active material, supplied by BASF under the trade name Texapon N70). Product P2: Product comprising a polymer JR 400® of the trade name UCARE™ concentrated to 5% by weight in water.

(136) The settings that he or she uses are as follows: 1st quarter: 3% of product P1, 0% of product P2, 2nd quarter: 3% of product P1, 0.5% of product P2, 3rd quarter: 3% of product P1, 1.5% of product P2, and 4th quarter: 3% of product P1, 3% of product P2.

(137) After rinsing, he or she touches the hair then dries it. He or she selects the best results, and may store the corresponding ratio of the products P1 and P2 in memory in the system 1 and subsequently reproduce the formulation.

Example 6B

(138) The shampooer reproduces the example 5B, placing the following products P1 and P2 in the tanks: Product P1: Product concentrated in washing active agent, containing amphoteric surfactants 12/7 and LES. Product P2: Product comprising amino silicones concentrated to 5% in water.

(139) The settings that he or she uses are as follows: 1st quarter: 3% of product P1, 0% of product P2, 2nd quarter: 3% of product P1, 0.5% of product P2, 3rd quarter: 3% of product P1, 1.5% of product P2, and 4th quarter: 3% of product P1, 3% of product P2.

(140) After rinsing, he or she touches the hair then dries it. He or she selects the best results, and may store the corresponding ratio of the products P1 and P2 in memory in the system 1 and subsequently reproduce the formulation.

Example 7B

(141) The shampooer reproduces the example 5B, placing the following products P1 and P2 in the tanks: Product P1: Product concentrated in washing active agent, containing amphoteric surfactants 12/7 and LES Product P2: Conditioner comprising a thickened mixture of cationic surfactants and fatty alcohols.

(142) The settings that he or she uses are as follows: 1st quarter: 3% of product P1, 0% of product P2, 2nd quarter: 3% of product P1, 0.5% of product P2, 3rd quarter: 3% of product P1, 1.5% of product P2, and 4th quarter: 3% of product P1, 3% of product P2.

(143) After rinsing, he or she touches the hair then dries it. He or she selects the best results, and may store the corresponding ratio of the products P1 and P2 in memory in the system 1 and subsequently reproduce the formulation.

Example 8B

(144) The shampooer fills a tank with the product P1 as follows: Product 1: “Ultradoux Camomille et miel de fleur®” shampoo from the Gamier brand, comprising anionic and amphoteric surfactants.

(145) At the time of washing the hair, the shampooer adjusts the system 1 to convey 2.5% of product into the water with a flow rate of 1l/min. He or she applies the solution by means of the dispensing device on four models 1 to 4 with highlighted hair, the highlights of which are especially damaged, for 8 seconds, i.e. approximately 3.3 g of product. On a first quarter of the hair of each model, he or she carries out rinsing for 10 seconds then applies a conditioner. On a second quarter, he or she carries out rinsing for 20 seconds then applies a conditioner. On a third quarter, he or she carries out rinsing for 30 seconds then applies a conditioner. On a fourth quarter, he or she does not carry out any rinsing, then applies a conditioner.

(146) He or she then rinses all the heads of hair of the models for 40 seconds. After drying, he or she identifies the best situation for each of the models. In this example, for models 1 and 3, the best setting is that with 30 seconds of rinsing. For the model 2, the best settings are those with rinsing of 10 seconds, 20 seconds and 30 seconds, which give equivalent results. For the model 4, the best setting is that with 10 seconds of rinsing, since it leads to a gain in body of the hair. The settings with rinsing for 20 and 30 seconds are satisfactory but do not lead to a gain in body.

(147) Subsequently, the shampooer will be able to store this data in memory in the system 1 and use it to obtain the best setting for the models 1 and 3.

(148) He or she will also be able to offer a short or long rinsing to the model 2, depending on whether or not this model wishes to benefit from a relaxing rinse.

(149) He or she will also be able to offer a short or long rinsing to the model 4, depending on whether or not said model wishes to benefit from a gain in body.

(150) Needless to say, the invention is not limited to the examples that have just been given. For example, while the use of a dispensing device with convergent colliding jets supplied with high pressure is advantageous, the invention is not limited to such a device.

(151) In the example illustrated, the products are injected upstream of the pressure booster 50; in one variant, the injection occurs downstream.

(152) In the case of the use of several products, it is possible to use a single multi-compartment container.

(153) The container(s) may be provided with identifiers which automatically give information to the system 1 relating to the identity of the products and/or relating to the composition and/or the nature of the product contained within. The database BD2 may, where appropriate, automatically update upon reading these identifiers.

(154) It is possible to provide manual-control or automatic-control faucets on the pipes which connect the container(s) of product(s) to the rest of the system 1.