JPS6155483B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a gray hair dye that can be used to very easily dye gray hair gradually black. Conventionally, a known method for dyeing gray hair black is to quickly dye hair using a hair dye containing paraphenylenediamine-based oxidized dye as the main ingredient, but the dye may irritate the skin. In recent years, iron salts such as ferrous sulfate and substances such as tannic acid, gallic acid, pyrogallol, and dopa, which react with iron salts to produce a black color, have been introduced to avoid skin irritation and rash. A widely used method is to gently and gradually dye gray hair black using a reaction with a dye (hereinafter referred to as a coloring agent). Such methods include a method in which a single dosage form of hair dye containing a stable combination of a ferrous salt and a coloring agent is repeatedly used to gradually dye the hair by color development through air oxidation, and a method in which the color is gradually developed by air oxidation while a single dosage form of hair dye containing a stable combination of a ferrous salt and a coloring agent is used repeatedly. Using a two-dose hair dye consisting of the first part as an ingredient and the second part as a coloring agent, the first part and the second part are applied to the hair alternately, and the color is developed by air oxidation. There is a way to gradually dye your hair by repeating this process. However, although the method of using a single-dose hair dye is simple, it has the disadvantage that the remaining hair dye that does not permeate into the hair turns black due to air oxidation and adheres to hands, clothes, pillowcases, etc., making them dirty. In addition, the method using a two-dose hair dye is very time-consuming and has the disadvantage that the hair dyeing effect is not very good. While conducting various studies on methods of dyeing gray hair using ferrous salts and coloring agents, the inventor of the present invention formulated only ferrous salts into commonly used hair cosmetics and used them continuously. By permeating and depositing iron ions into the hair, and treating the hair at an appropriate time, for example, during daily shampooing or rinsing, with a composition that does not contain iron salts and contains a coloring agent, the above-mentioned effect can be achieved. Extremely easy, without problems such as dirt,
Furthermore, it has been discovered that gray hair can be dyed much more effectively than conventional methods. In addition, the PH when the hair dyeing effect works with ferrous salt and coloring agent
It was also found that it was influenced by That is, the present invention provides a hair dye for gray hair that uses a ferrous salt and a substance (coloring agent) that develops a black color by reacting with iron ions selected from the group consisting of tannic acid, gallic acid, and pyrogallol. PH that contains ferrous salt and does not contain the coloring agent
2.5 to 7.0, a first agent in the form of a hair styling agent used for daily hair styling (hereinafter simply referred to as a hair styling agent);
PH1.0 to 9.0 containing the coloring agent and not containing the iron salt
After using the hair styling agent, a second agent (hereinafter referred to as
The present invention provides a gray hair dye consisting of a color former composition (simply referred to as a color former composition). Hair dyeing using the hair dye of the present invention is extremely easy as it can be done in daily life by styling the hair or using shampoo or conditioner. When the iron ions are sufficiently permeated and deposited and treated with a color former composition, color development occurs inside the hair, and unlike conventional one-dose hair dyes, the remaining hair dye does not permeate into the hair. Blackened externally,
This allows hair to be dyed without the problem of staining hands, clothing, etc. In addition, by adjusting the pH within the above range, ferrous salts can be stably incorporated into hair styling products, and have excellent hair dyeing effects, making hair dyeing much more effective than conventional methods. Ru. Thus, in order to dye gray hair using the hair dye of the present invention, the hair styling agent is used every day, and the color former composition is used as appropriate, for example, at intervals of 1 to 10 days, for example, when taking a bath. Treat hair. Table 1 below shows the results of testing the hair dyeing effects of a method using a conventional one-dose hair dye and a method using a hair dye of the present invention. In the conventional method, a hair cream-type hair dye (PH 3.5) containing 1.2% ferrous sulfate (wt%, same hereinafter) and 1.0% pyrogallol was used every day. In the method using the hair dye of the present invention, a hair liquid type hair conditioner (PH3.5) containing 1.2% ferrous sulfate is used every day, and a hair conditioner containing 1.0% pyrogallol is used every fourth day. The hair was treated with a type of composition (PH4). The hair dyeing effect is based on the coloring degree of the hair sample.
The color difference ΔE was measured using a Richard S.Hunter color difference meter [National Bureau of
Color difference expressed in Standards (NBS) units: ΔE
=√ ² + ² + ² (L: brightness, a: saturation,
b: hue)] (the larger the ΔE, the greater the hair dyeing effect).

[Table] As shown in Table 1, the hair dye of the present invention exhibits a far superior hair dyeing effect than the conventional method using a single-dose hair dye. The hair conditioner to be used may be one in the form of a liquid, paste, gel, etc., such as hair liquid, hair cream, hair solid, QBF type hair conditioner, spray type hair conditioner, etc., as long as the ferrous salt contained therein can permeate into the hair. It may be in any solid form, and the pH is adjusted to 2.5 to 7.0, preferably 3.5 to 5.5, from the viewpoint of the hair dyeing effect and the stability of the ferrous salt to be blended. This pH adjustment can be carried out according to a conventional method. The ferrous salt to be blended may be any salt used in ordinary hair dyes, such as ferrous sulfate, ferrous chloride, ferrous acetate, etc.
The amount of these ingredients can be selected as appropriate, but it is usually preferably about 0.1 to 5% based on the total amount of the hair styling agent. The hair styling agent can be manufactured according to a conventional method,
Other ingredients may be any commonly used ingredients. For example, liquid hair styling products include ethylene oxide or propylene oxide adducts of higher alcohols, resins such as their phosphoric acid esters; humectants such as propylene glycol, ethylene oxide adducts of ethylene glycol, glycerin; citric acid, oxalic acid. , stabilizers such as phosphoric acid;
In addition, ethanol, preservatives, fragrances, etc. can be added. Paste hair styling products include self-emulsifying glyceryl monostearate, sorbitan monostearate, sorbitan monooleate, sorbitan trioleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene Emulsifiers such as sorbitan monopalmitate, polyoxyethylene cetyl ether, polyoxyethylene oleyl ether, sodium cetyl sulfate; liquid paraffin, paraffin wax, lanolin, ceresin wax, microcrystalline wax, vaseline, ozokerite, beeswax, spermaceti Oil components such as , cetyl alcohol, and stearyl alcohol; humectants such as propylene glycol, ethylene glycol ethylene oxide adduct, glycerin, isopropyl myristate, isopropyl palmitate, and diisopropyl adipate; other preservatives, fragrances, etc. can be blended. Further, the color former composition may be of any dosage form in which the color former can react with iron ions permeated into the hair; for example, it may be a composition in which the color former is simply dispersed or dissolved in water. , preferably in the form of a hair wash or hair finish for daily use such as shampoo, hair rinse, hair treatment, hair conditioner, and from the viewpoint of composition stability and hair dyeing effect, pH 1.0 to 9.0, Preferably, the pH is adjusted to 1.5 to 6.0. The coloring agent to be blended may be any of those commonly used in hair dyes as described above, and the blending amount can be selected as appropriate, but is generally preferably about 0.1 to 5% based on the total amount of the composition. The composition can also be produced according to conventional methods,
Other ingredients may be any commonly used ingredients. For example, hair rinses use cationic surfactants such as lauryltrimethelammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, dilauryldimethylammonium chloride, dicetyldimethylammonium chloride, and distearyldimethylammonium chloride. ;Liquid paraffin wax, squalane, lanolin, seregin wax, microcrystalline wax,
Fatliquoring agents such as vaseline, ozokerite, beeswax, spermaceti, cetyl alcohol, and stearyl alcohol; Wetting agents such as propylene glycol, ethylene glycol ethylene oxide adduct, glycerin, isopropyl myristate, isopropyl palmitate, and diisopropyl adipate; Other preservatives Agents, fragrances, etc. can be added. Next, the present invention will be explained in more detail with reference to Examples. Example 1 Hair liquid type hair conditioner Ingredients % (1) Ethylene oxide and propylene oxide adduct of butanol 25.0 (2) Ethanol 50.0 (3) Propylene glycol 2.0 (4) Ferrous chloride 1.8 (5) Polyoxyethylene Hydrogenated castor oil 0.5 (6) Purified water adjusted to 100% (7) Fragrance 0.5 Dissolve component (4) in a portion of purified water and add components (1), (2),
Blend in the order of (3), (5), (6), and (7) and stir to reach a pH of 3.5.
A liquid type hair conditioner was obtained. Color former composition (hair rinse type) Ingredients % (1) Cetyltrimethylammonium chloride 5.0 (2) Polyoxyethylene sorbitan monostearate 1.0 (3) Cetyl alcohol 2.0 (4) Liquid paraffin 1.5 (5) Gallic acid 1.4 ( 6) Purified water adjusted to 100% (7) Fragrance 0.2 Mix ingredients (1) to (4) and heat to 80℃ to dissolve.
Components (5) and (6) were added to this while stirring, cooled to 60° C., component (7) was added, and further cooled to obtain a hair rinse (PH4). If you style your hair every day with the obtained hair liquid and use the hair rinse every three days after shampooing, your gray hair will gradually turn black to a very good condition, and there will be no stains on your hands, clothes, or pillowcase. Nakatsuta. Example 2 Hair cream type hair conditioner Ingredients % (1) Liquid paraffin 25.0 (2) Paraffin wax 8.0 (3) Polyoxyethylene sorbitan monostearate 2.0 (4) Propylene glycol 3.0 (5) Ferrous sulfate 2.0 ( 6) Purified water adjusted to 100% (7) Fragrance 0.5 Mix ingredients (1) to (3) and heat to 80℃ to dissolve.
Components (4) to (6) were added to this while stirring, cooled to 60°C, component (7) was added, and further cooled to obtain a hair cream type hair styling agent (PH3.2). Color former composition (hair rinse type) Ingredients % (1) Distearyldimethylammonium chloride 4.0 (2) Polyoxyethylene cetyl ether 1.5 (3) Lanolin 2.0 (4) Tannic acid 1.6 (5) Purified water Adjusted to 100% (6) Fragrance 0.3 Mix ingredients (1) to (3) and heat to 80℃ to dissolve.
Components (4) and (5) were added to this while stirring, and after cooling to 60°C, component (6) was added and cooled to obtain a hair rinse (PH3.8). If you style your hair every day using the obtained hair cream and use the hair rinse after shampooing every 7 days, your gray hair will gradually turn black to a very good condition, and your hands, clothes, and pillowcases will get dirty. I couldn't see it. Example 3 QBF type hair conditioner Ingredients % (1) Self-emulsifying wax consisting of 80% cetostearyl alcohol and 20% polyethylene glycol (1000) monostearate 1.5 (2) Ethanol 50.0 (3) Butanol ethylene oxide and propylene Oxide adduct phosphate ester 20.0 (4) Ferrous acetate 1.2 (5) Freon 12/114 (40/60) 10.0 (6) Purified water Adjusted to 100% Add components (1) to (4) to purified water It was dissolved, placed in an aluminum can for aerosol, and filled with component (5) to obtain a QBF type hair conditioner (PH4.2 when foam breaks after spraying). Color former composition (hair treatment type) Ingredients % (1) Dicetyldimethylammonium chloride 3.0 (2) Lanolin 15.0 (3) Polyoxyethylene sorbitan monostearate 1.8 (4) Setanol 2.0 (5) Glycerin 3.0 (6) Pyrogallol 2.0 (7) Purified water Adjust to 100% Mix ingredients (1) to (4), heat to 80℃ and dissolve.
Components (5) to (7) were added to this while stirring, and the mixture was cooled to obtain a hair treatment (PH3.5). If you style your hair every day using the obtained QBF hair conditioner and use the hair rinse after shampooing every 5 days, your gray hair will gradually turn black to a very good condition, and your hands, clothes, pillowcases, etc. No stains were seen. Example 4 Transparent gel hair conditioner Ingredients % (1) Polyoxyethylene oleyl ether phosphate ester 15.0 (2) Liquid paraffin 10.0 (3) Ferrous chloride 2.5 (4) Sodium hydroxide 0.7 (5) Purified water 100 (6) Fragrance 0.5 Mix ingredients (1) to (2), heat and dissolve at 80℃, add ingredients (3) to (6) while stirring, cool to 60℃ and dissolve the ingredients. (7) was added and further cooled to obtain a transparent gel hair styling agent (PH3.5). Color former composition (hair rinse type) Ingredients % (1) Cetyltrimethylammonium chloride 3.0 (2) Polyoxyethylene sorbitan monopalmitate 2.5 (3) Liquid paraffin 3.5 (4) Cetyl alcohol 1.0 (5) Gallic acid 2.8 ( 6) Purified water adjusted to 100% (7) Fragrance 0.5 Mix ingredients (1) to (4) and heat to 80℃ to dissolve.
Components (5) and (6) were added to this while stirring, and the mixture was cooled to 60°C, component (7) was added thereto, and the mixture was further cooled to obtain a hair rinse (PH3.2). If you style your hair every day with the resulting transparent gel hair conditioner, and use the hair rinse after shampooing every 4 days, gray hair will gradually turn black to a very good condition, and stains on hands, clothes, and pillowcases will disappear. I couldn't see it.

Claims (1)

[Claims] 1. Hair dye for gray hair using a ferrous salt and a substance (coloring agent) that develops a black color by reacting with iron ions selected from the group consisting of tannic acid, gallic acid, and pyrogallol. The first agent is a hair styling preparation used for daily hair styling, which contains a ferrous salt and does not contain the coloring agent, and has a pH of 2.5 to 7.0. A hair dye for gray hair, characterized in that it consists of a second agent in the form of a hair wash or hair wash finish, which is used regularly or irregularly after using the salt-free hair styling agent with a pH of 1.0 to 9.0. 2. The hair dye according to item 1 above, wherein the PH of the first agent is 3.5 to 5.5. 3. The hair dye according to item 1 or 2 above, wherein the ferrous salt is ferrous sulfate, ferrous chloride or ferrous acetate. 4. The hair dye according to any one of Items 1 to 3 above, which contains 0.1 to 5% of ferrous salt based on the total amount of the first agent. 5. The hair dye according to any one of Items 1 to 4 above, wherein the first agent is a hair liquid type. 6. The hair dye according to any one of Items 1 to 4 above, wherein the first agent is a hair cream type. 7 Items 1 to 4 above, wherein the first agent is in the form of a transparent gel.
Hair dye of any one of the items. 8. The hair dye according to any one of Items 1 to 7 above, wherein the pH of the second agent is 1.5 to 6.0. 9. The hair dye according to any one of Items 1 to 8 above, which contains the coloring agent in an amount of 0.1 to 5% based on the total amount of the second agent. 10 Item 1 above, wherein the second agent is a hair rinse.
Any one hair dye of item 9. 11. The hair dye according to any one of Items 1 to 9 above, wherein the second agent is shampoo.