3 results about "Hair dyes" patented technology

A hair dye composition containing an azo dye (1) or a salt thereof

wherein R represents a coupler moiety, R₁ and R₃ each independently represent —SO₃M, —SO₂NR₄R₅ or a hydrogen atom, R₂, R₄ and R₅ each independently represent a hydrogen atom or a substituent, and M represents a hydrogen atom, metal atom or ammonium, with a proviso that R₁ and R₃ are not hydrogen atoms at the same time.

A hair color delivery system includes a flexible bottle, a dispensing cap having a tapered nozzle, an asymmetric bi-directional valve assembly, and a dispensing tube. The valve assembly comprises a platform, and a pair of valves, comprising tapered extensions through which fluid may be expelled from the bottle and ambient air may enter the bottle. The valves are offset from each other so that they are not co-axial or rotationally symmetric. The delivery system enables a method of substantially continuous delivery of a fluid chemical, yielding a hair treatment that it is easy and safe to use in which the tapered nozzle stays fully charged with product as air can be admitted to a dispensing bottle through a different valve than that used for dispensing.

The invention discloses a quantity limitation material supply mechanism for a hair dyeing comb. The quantity limitation material supply mechanism consists of a paste storage chamber and a quantity limitation rod, wherein the paste storage chamber is used for connecting the connecting-in end of a paste storage tank; a material discharging passage is also arranged in the paste storage chamber; the upper end of the quantity limitation rod is fixed; the lower end of the quantity limitation rod is inserted into the upper section and the middle section of the material discharging passage of the paste storage chamber; the tail end of the quantity limitation rod is provided with a sealing ring; a material discharging passage is formed in the quantity limitation rod; the upper end of the material discharging passage of the paste storage chamber can be sealed by the tail end, provided with the sealing ring, of the quantity limitation rod. The quantity limitation material supply mechanism mainlyhas the quantity limitation paste discharging advantage; meanwhile, the functions of automatically stirring and mixing the hair dyeing paste and auxiliary agents can also be realized; the utilizationefficiency is improved; the dyeing paste is sufficiently utilized, so that the professional operation effect can be achieved by the self help hair drying.