JP2544879B2 - Hair dyeing method and equipment used therefor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dyeing method and a device used therefor capable of efficiently dyeing hair in a short time.

[0002]

2. Description of the Related Art It has heretofore been widely known to dye hair using an oxidative hair dye containing a dyeing component such as pyrogallol or gallic acid. And, this utilizes the fact that the dyeing component such as pyrogallol is oxidized to turn dark brown. However, in the conventional hair dyeing method, after applying a hair dye to the hair, an oxidizing dyeing component such as pyrogallol or gallic acid is exposed to the air to cause an oxidative reaction and discolor, so that the color change reaction is completely performed. There is a problem that it takes several hours to finish and it is not possible to perform a quick hair dyeing treatment.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a hair dyeing method which solves the above-mentioned conventional problems and is capable of completing a discoloration reaction in a short time and performing a quick and reliable hair dyeing treatment. The present invention has been completed for the purpose of providing a hair-dyeing device that can perform hair dyeing treatment extremely easily and safely.

[0004]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, is to apply a current to an oxidative hair dye applied to hair to electro-oxidize the hair dye to develop a color. The hair dyeing method characterized by the above is the first invention, and the tip of the tooth portion connected to the anode side of the power source and the tooth portion connected to the cathode side of the base portion are protruded from the tip of the tooth portion. A second invention is a device used for hair dyeing, which is characterized in that a large number of plants are planted with an insulating material interposed.

The hair dye used in the present invention is basically an oxidizing dyeing component such as pyrogallol, gallic acid or gallic acid ester, and one of a ferrous compound and a ferric compound as a coloring aid. Alternatively, a mixture of two or more kinds, and a single or a mixture of two or more kinds of inorganic acid or organic acid as an antioxidant, a reducing agent such as ascorbic acid, or a compound thereof is added to form an aqueous solution. In addition to the above-mentioned components, one of the chlorides of ammonia, bromides, iodides, and salts of inorganic oxygen acids is further used as a metal of the electrolyte.
One kind or a mixture of two or more kinds is added, which has a function of promoting electrolysis and promoting electrooxidation of the hair dye, as described later. Further, when the hair dye is applied to the hair, a viscous agent such as hydroxyethyl cellulose is added to impart an appropriate viscosity to the hair dye so that the hair dye maintains a sufficient adhesion state to the hair. It is also preferable to keep it. Further, one or more mixtures of nonionic or anionic surfactants, solvents for promoting penetration into hair, and other oily ingredients, preservatives, fragrances, lubricants, moisturizers, or treatments. If necessary, effective components can be added.

The present invention is characterized in that the above-mentioned hair dye is applied to hair by a conventional method, and then a current is applied to the hair dye to cause electrooxidation to develop a color. Explaining by way of example, for example, when an aqueous dye prepared by diluting pyrogallol, which is an oxidizing dyeing component, with ferrous chloride and sodium chloride into an aqueous solution is used, it is possible to apply In the presence of ferrous chloride and sodium chloride, the hair dye is electrolyzed, and PH is increased at the negative electrode to become alkaline and promote the oxidation of pyrogallol which is an oxidizing dyeing component. On the other hand, since chlorine is generated at the anode, the system tends to be inclined in the direction of oxidation. As a result, the oxidation of pyrogallol, which is a dyeing component, is promoted, and it becomes possible to change the color to dark brown in a short period of time. Become.

Next, a device for performing hair dyeing treatment by electro-oxidation as described above will be described. The drawings show an example of an apparatus for performing hair dyeing treatment. In the drawing, 1 is a base portion made of an insulating material such as synthetic resin and connected to the tip of the handle portion, and 2a and 2b are the base portions. 1 is a large number of tooth portions planted at a required interval. Tooth 2a,
2b are arranged in a straight line on the base 1, and the base of the tooth 2a is electrically connected to the anode side of the battery as the power source 3 built in the base 1 and the base of the tooth 2b. Is electrically connected to the cathode side to form a single row of the anode side tooth section row and the cathode side tooth section row, and a comb tooth shape is formed between the anode side tooth section row and the cathode side tooth section row. The insulating material 4 is interposed. Further, the insulating material 4 is slightly longer than the length of the teeth 2a, 2b so that the teeth 2a, 2b do not come into direct contact with the scalp when the grip is used. In the drawing, the two rows of teeth 2a, 2
Although a gap is provided between b, it is of course possible to adopt a structure in which they are in close contact with each other with the insulating material 4 interposed therebetween, or to use a normal household power supply as the power supply.

In such a device, when the hair dye is applied to the hair, the grip portion is gripped and the power source 3 is turned on to prepare the hair, the hair located between the tooth portions 2a and 2b is dyed. The reaction will be carried out quickly. That is, originally, the hair itself is a non-conductive material, but the current flows between the tooth row of the anode side and the tooth row of the cathode side by conducting electricity through the hair dye adhering to the hair surface. Is electrolyzed to promote electrooxidation of pyrogallol which is a hair dyeing component. As a result,
The color change reaction of the hair dye to dark brown can be carried out in a short time, and the hair dyeing treatment time can be greatly shortened.

The above-mentioned hair-dying device may be a comb-shaped device as shown in FIGS. 4 to 5, in addition to the comb-shaped device described above. In this case, for example, for each row. The tooth portion on the anode side and the tooth portion on the cathode side may be formed and the insulating material 4 may be interposed between these tooth portions.

[0010]

【Example】

(Example 1) Hydroxyethyl cellulose: 2.0 g, ferrous chloride: 1.0 g, sodium chloride: 3.0 g, pyrogallol:
A hair dye was prepared by adding water to 1.0 g, ascorbic acid: 0.2 g, and citric acid: 0.2 g to make the total amount 200 ml. When this hair dye was spray-applied and then the hair was prepared using the device shown in FIG. 1, the hair dyeing treatment could be completed in 15 minutes, and the conventional pyrogallol-based hair dye was used. It was confirmed that the treatment time could be significantly shortened as compared with the hair dyeing treatment time of 5 hours required. (Example 2) Hydroxyethyl cellulose: 2.0 g, ferrous chloride: 1.0 g, sodium iodide: 3.0 g, pyrogallol:
A hair dye was prepared by adding water to 1.0 g, ascorbic acid: 0.2 g, and citric acid: 0.2 g to make the total amount 200 ml. When this hair dye was spray-applied and then the hair was prepared using the device shown in FIG. 4, the hair dyeing treatment could be completed in 10 minutes, and the treatment time was greatly shortened compared to the conventional method. It was confirmed that it could be achieved.

[0011]

As is apparent from the above description, the present invention is capable of terminating the discoloration reaction in a short time and performing a quick and reliable hair dyeing treatment, and is the second invention. An apparatus for hair is one that can perform hair dyeing treatment very easily and safely. Therefore, the present invention greatly contributes to the development of industry as a hair dyeing method and an apparatus used therefor that eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a device used for dyeing hair according to the present invention.

FIG. 2 is a plan view showing a first embodiment of the device used for dyeing hair according to the present invention.

FIG. 3 is a vertical cross-sectional view of FIG.

FIG. 4 is a front view showing another embodiment of the device used for dyeing hair according to the present invention.

5 is a vertical cross-sectional view of FIG.

[Explanation of symbols]

 1 Base 2a Teeth 2b Teeth 3 Power 4 Insulation

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A 64-70010 (JP, A) JP-A 1-272517 (JP, A) JP-A-153102 (JP, U)

Claims (2)

(57) [Claims] 1. A hair dyeing method comprising applying an electric current to an oxidative hair dye applied to hair to electro-oxidize the hair dye to develop a color. 2. The base portion (1) has a tooth portion (2a) connected to the anode side of the power source (3) and a tooth portion (2b) connected to the cathode side of the power source (3), and the tip of the tooth portion (2a) ), Insulation material protruding from the tip of (2b)
A device used for hair dyeing, which is characterized in that a large number are planted with (4) interposed.