A hair treatment kit comprises a hair treatment composition selected from the group of semi-permanent oxidative and/or direct dye hair colorant compositions, hair bleaching compositions, highlighting compositions, and combinations thereof, a reservoir for holding the temporary hair treatment composition, and an applicator fluidly connected to the reservoir for selectively applying the hair treatment composition to a targeted area of hair. Methods of applying the hair treatment composition comprise selectively engaging the applicator with a targeted area of hair, leaving the hair treatment composition in the targeted area for a time period, washing the hair treatment composition out of the targeted area, closing the reservoir to preserve remaining hair treatment composition for later use, and reapplying the hair treatment composition to the targeted area.

The application provides a hair coloring brush. The hair coloring brush can include a handle and a detachable brush cap that detachably couples to the handle. The handle can include an elongated body, a brush attachment protrusion, where the brush attachment protrusion extends outward from the elongated body and has a first protrusion side and a second protrusion side. The handle can also include a first side ridge and a second side ridge. The detachable brush cap can include a distal brush end, a plurality of bristles, and a cavity opposite the distal brush end, where the cavity has a cavity wall and an internal groove located in the cavity wall. The first side ridge and the second side ridge can tension fit in the internal groove when the detachable brush cap is inserted over the brush attachment protrusion.

A hair treatment device for use in the application of direct heat to foil-covered sections of hair, in order to accelerate a hair highlighting or hair coloring process, is described. The hair treatment device includes two opposing plates for transmitting heat. The foil-covered sections of hair are pressed between the opposing plates when the device is in use. The plates are set in a housing. Seals are located along edges of the plates, edges of the housing, or both, in order to protect the user's scalp from the heated plates. A plurality of venting passages pass through the plates.

A system, computer readable medium and method for selective brightening of hair, the method may include or may be preceded by applying at least one photosensitive material to the hair. The method may also include forming at least one pattern of brightened hair by illuminating the hair by at least one pattern of illumination.

A portable hair printer includes a communication module, a printer module that performs a printing operation, a memory that stores a program for printing an image on a surface of a bundle of hairs, and a processor that executes the program, wherein the program is executed by the processor, receives an image to be dyed on the bundle of hairs from the user terminal through the communication module, and transmits the received image to the printer module to perform an image printing operation for the bundle of hairs, and the portable hair printer further comprises a housing having the communication module, the printer module, the memory, and the processor embedded therein, and the housing includes an upper housing and a lower housing hinged to each other around a hinge, and a sensor module.

A process for treating keratin fibres may include applying a hair treatment composition to the keratin fibres. The composition may comprise at least one of fatty substances, surfactants, polymers with a glass transition temperature (Tg) ranging from about 40 C. to about 150 C., oxidation dye precursors, and direct dyes. The process may also include inserting the keratin fibres into a device comprising two elements that are moveable relative to each other between an open position and a closed position. In the closed position, the two elements may define a substantially leaktight closed space. The process may further include moving the two elements into the closed position to confine the keratin fibres in the closed space, and heating the keratin fibres to a temperature ranging from about 40 C. to about 250 C. while the keratin fibres are confined in the closed space.

Systems and methods for computing a hair-coloring composition (HCC) or for dispensing ingredients for the HCC are disclosed herein. In some embodiments, the system comprises a hair-treatment objective-prioritization user interface (HTOP UI) for receiving multi-objective relative-importance data describing a relative importance of different hair-treatment objectives (e.g. immediate post-treatment accuracy versus auxiliary goals, or one auxiliary goal versus another) for a potential hair-coloring treatment. In some embodiments, a hair-coloring-composition (HCC) prediction-engine is responsive to input received via the HTOP UI to compute, from the initial hair-state data and from the target color-state, a customized hair-coloring composition predicted to transform a color state of the user's hair from the initial color state to the target color state. This may be performed according to the multi-objective relative-importance data.

The application provides a hair coloring brush. The hair coloring brush can include a handle and a detachable brush cap that detachably couples to the handle. The handle can include an elongated body, a brush attachment protrusion, where the brush attachment protrusion extends outward from the elongated body and has a first protrusion side and a second protrusion side. The handle can also include a first side ridge and a second side ridge. The detachable brush cap can include a distal brush end, a plurality of bristles, and a cavity opposite the distal brush end, where the cavity has a cavity wall and an internal groove located in the cavity wall. The first side ridge and the second side ridge can tension fit in the internal groove when the detachable brush cap is inserted over the brush attachment protrusion.

A hair dye device includes a barrel, wherein the barrel includes a hollow center and a hook extending from one end of the barrel and an absorbent material impregnated with hair dye, wherein the absorbent material is configured to extend beyond the one end of the barrel, wherein a tip of the absorbent material moves toward the hook to provide a loop to capture hair within the loop.

Disclosed herein is a hairdryer for managing a braid. Further, the hairdryer may include a hairdryer housing, an attachment detachably coupled to the hairdryer housing and an electrical power source. Further, the hairdryer housing may include a hollow dryer body and at least two dryer openings disposed on the hollow dryer body. Further, the hairdryer housing may include a primary heating element disposed of in the hollow dryer body. Further, the hairdryer housing may include a fan mechanism disposed of in the hollow dryer body. Further, the attachment may include a hollow attachment body. Further, the attachment may include at least two protrusions and a secondary heating element disposed of on the at least two protrusions. Further, the electrical power source may be electrically coupled with the primary heating element, the secondary heating element, and the fan mechanism.