Hair treatment system

Patent metadata

Field	Value
Publication number	US-11533974-B2
Application number	US-201816626007-A
Country	US
Kind code	B2
Filing date	Jun 22, 2018
Priority date	Jun 30, 2017
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

System for treating a head of hair, including a pipe for circulating a liquid, a device for feeding the pipe with water, at least one source of product, the product (P1) comprising one or more surfactants, a device for injecting product into the pipe to form a treatment solution comprising one or more surfactants in a content ranging from 0.35% to 1.5% by weight of surfactant(s) relative to the total weight of the treatment solution, a dispensing device for delivering the treatment solution onto the head of hair (B) with a flow rate of between 0.5 and 5 L/min, better still between 0.8 and 3 L/min.

First claim

The invention claimed is:

1. A hair treatment system, comprising:
a pipe for circulating a liquid,
a device for feeding the pipe with water,
at least one source of product, the product comprising one or more surfactants,
a device for injecting product into the pipe to form a treatment solution comprising one or more surfactants in a content ranging from 0.35% to 1.5% by weight of surfactant(s) relative to the total weight of the treatment solution, and
a dispensing device for delivering the treatment solution onto the head of hair with a flow rate of between 0.5 and 5 L/min,
the dispensing device being a shower head connected to a flexible hose, and
the dispensing device comprising nozzles arranged so as to cause two jets leaving the dispensing device to collide before contacting a user while the dispensing device is in use.

2. The hair treatment system according to claim 1 , wherein the surfactant(s) are present in the treatment solution in an amount ranging from 0.6% to 1.2% by weight relative to the total weight of the treatment solution.

3. The hair treatment system according to claim 1 , wherein the water hardness being less than or equal to 45° f.

4. The hair treatment system according to claim 1 , wherein the surfactant(s) are chosen from anionic surfactants, amphoteric surfactants, nonionic surfactants and mixtures thereof.

5. The hair treatment system according to claim 1 , wherein the treatment solution comprising one or more anionic surfactants in a content ranging from 0.25% to 1% by weight relative to the total weight of the treatment solution.

6. The hair treatment system according to claim 1 , wherein the product injection device injecting between 2.5 g/minute and 20 g/minute of anionic surfactants into the pipe.

7. The hair treatment system according to claim 1 , further comprising a pressure booster to increase the pressure of the water entering the dispensing device above the pressure of the water entering the system.

8. The hair treatment system according to claim 1 , further comprising a member for controlling the amount of water dispensed, and/or the amount of product injected into the water and/or the flow rate of liquid delivered by the dispensing device.

9. The hair treatment system according to claim 1 , further comprising a user interface for selecting a setting, the hair treatment system being configured to act on an adjustment device for varying the content of product as a function of the selected setting, and/or to input at least one item of information relating to a treatment result obtained with the selected setting.

10. The hair treatment according to claim 1 , further comprising a means for memorizing at least one setting by associating it with a person and/or a person's identification code.

11. A washing system comprising:
a pipe for circulating a liquid,
a device for feeding the pipe with water,
at least one source of product, the product comprising one or more surfactants,
a device for injecting product into the pipe to form a treatment solution comprising one or more surfactants in a content ranging from 0.35% to 1.5% by weight relative to the total weight of the treatment solution, and
a dispensing device for delivering the treatment solution with a flow rate of between 0.5 and 5 L/min,
the dispensing device being a shower head connected to a flexible hose, and
the dispensing device comprising nozzles arranged so as to cause two jets leaving the dispensing device to collide before contacting a user while the dispensing device is in use.

12. A washing process, comprising the treatment step consisting in spraying the head of hair with a treatment solution comprising water and one or more surfactants at a flow rate of between 0.5 and 5 L/minute, the treatment solution comprising one or more surfactants in a content ranging from 0.35% to 1.5% by weight of surfactant(s) relative to the total weight of the treatment solution,
wherein the process is performed using the system according to claim 1 .

13. The washing process according to claim 12 , wherein the treatment step lasts between 1 and 30 seconds.

14. The washing process according to claim 12 , further comprising a step of rinsing the head of hair with a rinsing solution after the treatment step.

15. The washing process according to claim 14 , wherein the rinsing solution is water.

16. The washing process according to claim 14 , wherein the rinsing step lasts less than 1 minute.

Assignees

• Oreal

Inventors

• Robinault Jean-Luc
• Samain Henri

Classifications

• B01F2101/21

  Mixing of ingredients for cosmetic or perfume compositions · CPC title

• A45D19/005 Primary

  Shampooing; Conditioning; Washing hair for hairdressing purposes · CPC title

• B01F35/711

  for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream · CPC title

• A45D19/0041

  Processes for treating the hair of the scalp · CPC title

• A46B11/066

  with means for introducing an additive, e.g. soap · CPC title