Hair treatment process and system
AssigneeL'oreal
InventorsJean-Luc Robinault, Henri Samain
Life of this patent
Estimating the term…
Abstract
A system for washing the hair, including a first reservoir for receiving a first liquid (L1) constituted by or comprising water, a second reservoir for receiving a second liquid (L2) including a treatment product diluted in water in an amount of less than or equal to 2.5% by weight relative to the total weight of the second liquid (L2), a shower head with a supply rate of between 0.3 and 5 L/min, configured to deliver a jet of droplets onto the hair. The shower head is further supplied with liquid, taken exclusively from one or other of the reservoirs, with an overpressure.
Claims22
A system for washing the hair, including:
- a first reservoir for receiving a first liquid constituted by or comprising water,
- a second reservoir for receiving a second liquid comprising a treatment product diluted in water in an amount of less than or equal to 2.5% by weight relative to the total weight of the second liquid,
- a shower head with a supply rate of between 0.3 and 5 L/min, configured to deliver a jet of droplets onto the hair,
- a means for supplying the shower head with liquid, taken exclusively from one or other of the reservoirs, but not from both reservoirs at the same time, with an overpressure.
A process for washing the hair, including the steps consisting of:
- a) taking from a first reservoir a treatment liquid including a treatment product diluted in water,
- b) placing this treatment liquid under pressure to dispense it on the hair in the form of droplets,
- c) taking a rinsing liquid from a second reservoir constituted by or including water,
- d) placing this rinsing liquid under pressure to dispense it on the hair in the form of droplets.
A process for washing the hair, including the steps consisting of:
- a) taking from a reservoir a treatment liquid including a treatment product diluted in water,
- b) placing this treatment liquid under pressure to dispense it on the hair in the form of droplets,
- c) taking up a rinsing liquid constituted by or including water,
- d) placing this rinsing liquid under pressure to dispense it on the hair in the form of droplets,
- the flow rate at which the rinsing liquid (L1) is dispensed on the hair being between 0.5 and 2.8 L/min and/or
- the flow rate at which the treatment liquid is dispensed on the hair being between 0.5 and 2.8 L/min and/or
- the rinsing liquid being taken from a reservoir with a capacity of between 1 and 50 L.
A system for washing the hair, including:
- a first reservoir for receiving a first liquid constituted by or comprising water,
- a second reservoir for receiving a second liquid comprising a treatment product diluted in water in an amount of less than or equal to 2.5% by weight relative to the total weight of the second liquid,
- a shower head with a supply rate of between 0.3 and 5 L/min, configured to deliver a jet of droplets onto the hair,
- a means for supplying the shower head with liquid, taken exclusively from one or other of the reservoirs, with an overpressure,
- the system including a recovery tank for recovering the liquid used for treating the hair, the recovery tank being constituted by the first or the second reservoir.
Dependencies are inferred from the claim text.