APPLICATION OF HAIR COLORING COMPOSITIONS Russian patent published in 2025 - IPC A45D19/02 

FIELD: satisfaction of human vital needs.

SUBSTANCE: hair dyeing composition application device, comprising a device body comprising a first reservoir comprising a first piston, wherein the first reservoir is configured to receive the first part of the hair colouring composition; a second reservoir comprising a second piston, the second reservoir being configured to receive a second portion of the hair colouring composition; and a dispensing mechanism associated with the first piston and the second piston, wherein the dispensing mechanism is configured to tightly move the first piston within the first reservoir and the second piston within the second reservoir; and an application cap comprising a mixing mechanism and a plurality of projecting teeth, wherein the application cap is reversibly connected to the body of the device such that in a position in which the cap for application is connected to the body of the device, the first reservoir and the second reservoir are sealed with respect to the environment, except for the channels of the plurality of protruding teeth, which are in fluid communication with the first reservoir and the second reservoir by means of a mixing mechanism, and wherein the dispensing mechanism, when activated, is configured to move the first piston and the second piston in the direction of the plurality of protruding teeth to allow mixing the first part of the hair colouring composition with the second part of the hair colouring composition to form a mixed hair colouring composition to be dispensed through a plurality of protruding teeth.

EFFECT: broader functional capabilities.

17 cl, 22 dwg