JPS5830282B2 - Aerosol hair dye or bleach - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to aerosolization of hair dyes, which has been considered difficult in the past, and relates to aerosolized hair dyes or bleaching agents.

Conventional oxidation dye hair dyes are composed of a first agent containing a dye and an alkaline agent as main ingredients, and a second agent containing an oxidizing agent as the main ingredient. Store in a container,
At the time of use, mix the first agent and the second agent, stir, and prepare the second agent.
The oxidizing agent contained in the dye is used to develop color.

However, such a hair dye consisting of a first agent and a second agent is complicated to use and handle, and is also inconvenient to package and transport.

Furthermore, mixing the first and second agents during use means that the dye will be oxidized earlier before it is applied to a single head of hair, and the oxidation will have progressed considerably by the time it is actually applied to the hair. It is difficult to expect complete hair dyeing as it takes time to dye the hair.

Additionally, since hair dyeing is based on a chemical reaction, when the temperature rises, the color develops faster in that area, and in the past, the hair at the roots, which is closer to the scalp, develops color faster, sometimes resulting in uneven dyeing.

In order to eliminate this drawback, the present inventors have successfully prepared an aerosolized hair dye composition of the present invention as a result of many years of research.

Namely, 1. The hair dye liquid of the composition of the present invention is a gaseous aliphatic hydrocarbon at room temperature and normal pressure.

Or, fill it with halogenated hydrocarbons and ethers into a pressure vessel equipped with an aerosol spray valve.

By converting the hair dye solution into an aerosol, it was possible to obtain extremely good hair dyeing results with a simple operation.

The aerosolized hair dye composition of the present invention is as follows.

The first liquid is a solution or dispersion containing an oxidation dye, a surfactant, a solvent, an alkaline agent as a pH adjuster, and if necessary a hair nourishing agent, an antioxidant, a stabilizer, a fragrance, etc., and the second liquid is an oxidation liquid. A solution consisting of an agent, a stabilizer and water is used.

The first liquid is sequentially mixed with raw materials other than the alkaline agent.

Stir well and warm until completely dissolved.

It is then cooled to room temperature, and finally an alkali agent is added to adjust the pH to 7 or higher, preferably 8 to 12.

The second liquid heats water, dissolves the stabilizer in it, and after cooling,
Prepare by adding oxidizing agent.

The oxidative dyes used in the present invention include, for example, paraphenylenediamine, paratolylene diane, orthoaminophenol, paraaminophenol, nitroparaphenylenediamine, 2,4-diaminoanisole, paraaminodiphenylamine, or their sulfates, hydrochlorides, and resorcinols, catechol, pyrogallol, etc.
Alternatively, a mixture of two or more of these can be used.

These dyes are contained in the first liquid in an amount of 0 to 10% by weight (hereinafter referred to as % by weight).
It is desirable that the dye be completely dissolved or uniformly dispersed in the liquid.

When the dye concentration is O, hair is not dyed but one hair is bleached, resulting in so-called bleaching.

Oxidative dyes are easily oxidized, so to prevent oxidation, a reducing agent such as sulfite such as sodium sulfite, mercaptans such as thioglycolate, thiolactic acid, or hydrosulfide is usually used at a concentration of 1% or less.

Surfactant and hair nourishing agent adjust dyeing speed, uneven dyeing 1
Preferably used to prevent hair damage.

Hair nourishing agents include fats and oils such as olive oil and coconut oil, waxes such as spermaceti wax and lanolin, and hydrocarbons such as liquid paraffin and squalene.

Also used are fatty acids such as lauric acid and oleic acid, higher alcohols such as cetanol and oleyl alcohol, and esters such as isopropyl myristate and acetoglyceride.

As surfactants, those with strong foaming power are preferred, such as fatty acid soaps, higher alcohol sulfate ester salts, higher alkyl sulfonates, alkylaryl sulfonates,
Anionic surfactants such as higher alkyl phosphate esters and sulfate ester salts of higher fatty acid esters; cationic surfactants such as simple amine salts, quaternary ammonium salts, and pyridium salts; combinations of alkyl or alkylaryl ether fatty acids and polyethylene glycol Nonionic surfactants such as ester polyoxyethylene alkylamides, alkylolamides, polyoxyethylene alkylamine polyoxyethylene glyceryl monofatty acid esters, and higher fatty acid glycerin esters are used.

What is its usage? Preferably it is in the range of 30 to 70%.

The mixture used in the first liquid in Table 1 had the following composition.

Surfactant: Polyoxyethylene octylphenol nityl 40% Coconut oil fatty acid jetanolamide 60% Solvent: Propylene glycol 40% Distilled water 60% Oxidation dye: Nitroparaphenylenediamine 1.5% Paraphenylenediamine 015% Varamiminodiphenylamine 1.0% Orthoaminophenol 0.5% Resorcinol 1.0% Pyrogallol 0.5% Total 5.0% Alkaline agent: Monoethanolamine Antioxidant: Sodium sulfite stabilizer; Sodium ethylenediaminetetraacetate Hair tonic; For the oleyl alcohol sample, add 7% dimethyl ether to 48% of each of the first liquids in Table 1.
% to compartment A (described later).

In compartment B (described later), add 45% of the above common second liquid.
Filled and created.

This is displayed as follows.

The outline of the test method and evaluation in the test example in Table 1 above is as follows.

Foam condition: 100 g of the sample per person was sprayed and applied uniformly over the entire medium-length female hair, and the foam condition was evaluated after being left for 15 minutes.

A) Penetration into hair ○ Penetrates well into hair.

×It takes time to penetrate the hair.

B) Foam persistence and viscosity ○The foam is viscous and does not flow down.

×The bubbles break easily and flow down as liquid.

Finish: Apply 100g of the sample evenly to the entire hair, leave it for 15 minutes, and then rinse the sample thoroughly with warm water.

Dry completely with a hair dryer.

C) Staining effect ○ Hair is completely dyed.

× Hair is dyed unevenly.

The stain is not sufficient. D) Scalp dyeing ○Does not stain the scalp much.

×The color does not fade as it stains the scalp.

E) Texture of hair ○ Hair is supple and combs easily.

×The hair lacks flexibility and is difficult to comb.

In sample A1, since the amount of surfactant was small, the foam film was weak and the foam was easily broken.

As a result, the foam became liquid, ran down, and collected on one scalp, staining one scalp.

Further, the first liquid of this sample had poor dispersibility of the oxidized dye.

Sample/I67 had a large amount of surfactant, so the foam film was hard and did not penetrate quickly into the hair, resulting in poor dyeing effect.

The texture of the finish was poor, and the amount of solvent blended was relatively small, so the solubility of the oxidation dye was poor.

Samples/162, 3, 4, 5, and 6 were excellent in both foam condition and finish because the amount of surfactant was appropriate.

Further, the dissolution and dispersion of the oxidized dye was also good. As is clear from the above tests, the amount of surfactant to be blended needs to be 30 to 70%.

In addition, water and an organic solvent are used as the solvent in order to dissolve the dye well.

As an organic solvent. Monohydric alcohols, for example having 1 to 6 carbon atoms.

Dihydric alkyl alcohols such as ethyl alcohol, isopropyl alcohol, such as those having 2 to 8 carbon atoms, such as propylene glycol and various polyhydric alcohol ketones or esters, can be used in an amount of 5 to 30%, preferably 10 to 8%. Good results were obtained at 25%.

The best combination is water and isopropyl alcohol or propylene glycol, and the concentration of water and organic solvent must be 10 to 50 in order to sufficiently dissolve the oxidized dye.
% is desirable.

There are various alkaline agents, but in consideration of toxicity, skin irritation, economic efficiency, and dyeing effect, aqueous ammonia, monoethanolamine, jetanolamine triethanolamine, sodium hydroxide, potassium hydroxide, and mixtures thereof are recommended. Best results were obtained when used at a concentration of 15%.

That is, when the pH is less than 8 or the alkali concentration is less than 2%, the staining power is weak, and either complete staining cannot be obtained or a long time is required for staining.

Furthermore, when the pH is higher than 12 or the alkali concentration exceeds 15%, the amount of alkali is too large, which tends to cause uneven dyeing and damage the scalp and hair.

Therefore, use 2 to 15% of the above alkaline agent and adjust the pH to 8.
In the range of 12 to 12, products excellent in all respects such as dyeing power, dyeing uniformity, dyeing time, and irritation can be obtained.

That is, the alkaline agent concentration is determined within the above range depending on the desired hair color tone.

Ammonia water is non-toxic and economical in a wide range of areas, but it has the disadvantage of having a strong pungent odor. Use a non-volatile alkaline agent such as potassium.

But sodium hydroxide. In the case of potassium hydroxide,
Since it is strongly alkaline, it is preferable to use it by mixing it with other alkaline agents so that the pH becomes 8 to 12.

As shown in Table 3 below, monoethanolamine, jetanolamine, and triethanolamine can also be used as excellent alkaline agents like aqueous ammonia.

When the second liquid is mixed with the first liquid as described above.

Does it generate oxygen and cause oxidation dyes to develop oxidation 1 color?

Or it contains an oxidizing agent that bleaches hair.

Hydrogen peroxide or urea peroxide is used as the oxidizing agent.

Its concentration is preferably 2 to 10%. In order to keep these oxidizing agents stable, it is best to keep them in an acidic range, especially at pH 2 to 6.
．． A range of 5 is good.

The acid used as the pH adjuster is suitably an inorganic acid, an organic acid, or a salt thereof, which is compatible with the constituent components of the second and first liquids and does not cause toxicity under the conditions of use.

As the acid or acid salt, sulfuric acid; Examples include phosphoric acid, acetic acid, lactic acid, citric acid, tartaric acid or ammonium sulfate.

It is also possible to add a hair nourishing agent and a surfactant to the second liquid, and it is also good to use zenacetin or the like to alleviate skin irritation.

The types of gases currently used as propellants in aerosols can be roughly divided into fluorinated hydrocarbons, chlorinated hydrocarbons, hydrocarbons, ethers, and compressed gases.

However, in the present invention, since the gas is injected in a foamy state, it is preferable that the gas be compatible with the first liquid or the second liquid.

Therefore, compatible gases are limited depending on the composition of the first liquid or the second liquid.

As a result of testing these various propellants, nitrogen.

Compressed gases such as nitrous oxide and carbon dioxide gas have poor compatibility with the first liquid, and methylene chloride, trichloroethylene, and trichlorofluoroethane have low pressure.

Therefore, the hydrocarbons of propane, isobutane normal butane, vinyl chloride, chlorinated hydrocarbons of methyl chloride, dimethyl ether and hydrichloromonofluoromethane,
Good results were obtained using difluoromonochloromethane and dichlorotetrafluoroethane.

In particular, dichlorodifluoromethane, dichlorotetrafluoroethane, propane, dimethyl ether, and mixtures thereof are excellent propellants in all respects including toxicity, chemical stability, and pressure.

In particular, dimethyl ether is a jet of its contents.

The relationship with the contents and the pressure are particularly excellent.

In other words, it was found to be the most excellent propellant.

Furthermore, when the second liquid and the propellant are housed together in the same compartment, it is necessary to select a propellant that will not be oxidized by the second liquid.

The amount of propellant is very important as it is proportional to the amount of foam.

If the amount of propellant is small, the amount of foam will be small and there will be no point in creating foam, and uneven dyeing will occur.

Furthermore, if the amount of propellant is too large, the amount of foam will be enormous, making it inconvenient to use and reducing the dyeing power.

Staining time tends to be longer.

The amount of propellant is 2 to 1 of the total amount including the first and second liquids.
0%, preferably 3-8% gives good results.

Moreover, if the pressure is lower than 1 kg/cIit at 20°C, the injection speed will be slow, and if it is higher than 6kg/cIit, bubbles will scatter and contaminate the surrounding area.

Therefore, the pressure needs to be 1 to 6 kg/ffl, particularly preferably 2 to 4 kg/ffl.

Furthermore, if metal is mixed into either the first liquid or the second liquid, it may act as a catalyst for the reaction between the first liquid and the second liquid, promoting color development, and may cause uneven dyeing and damage to the hair. If necessary, add a metal sequestering agent such as sodium salt of ethylenediaminetetraacetic acid to the first and second liquids to sequester metal components. Add to.

Next, an example of a pressure vessel filled with the aerosolization agent of the present invention and equipped with a spray valve for use in hair dyeing will be described.

FIG. 1 is a schematic diagram illustrating an example of the structure of a pressure vessel having a spray valve in its longitudinal section, FIG. 2 is a longitudinal sectional view showing the structure of the valve chamber of the same pressure vessel, and FIG. FIG. 3 is a longitudinal sectional view illustrating the position of the valve when the valve chamber shown in FIG. 2 is placed in a state at the time of injection.

In the figure, reference numeral 1 denotes a main body of a pressure vessel which houses a first liquid or a second liquid and a propellant.

2 is a tube containing the second liquid or the first liquid, made of rubber,
It is made of soft synthetic resin or thin aluminum plate and contracts and hangs under pressure.

A indicates the internal compartment of the body 1 and B indicates the internal compartment of the tube 2, respectively.

Inside A is a conduit 3 through which the liquid inside is forced out by the pressure of the gas.

Inside B is provided a conduit 4 through which the liquid content is forced out by the gas pressure inside A.

5 is the upper valve 6° and the lower valve 7. Spring 8. Rubber backings 9 and 10 are accommodated, and a valve pipe rod 11 passing through the backings 9 and 10 is accommodated in the center.

The valve-closing pipe rod 11 has small holes 12 and 13 in the side wall, and a third
As shown in the figure, as the valve pipe rod 11 is pushed down, the backing 10 is also pushed down.

A gap is created between the upper valve 6 and the backing 10, and the liquid content of A is guided from A to the upper valve chamber 61 by the conduit 3, and is introduced into the tubular chamber 11' passing through the center of the valve pipe rod 11 through the small hole 12. do.

The lower valve chamber 7' is sealed by the lower valve 7 on the other hand.
In this case, the backing 10 and the lower valve T are pushed down by the depression of the valve pipe rod 11, creating a gap between the closing valve 7 and the backing 10, through which the contents of B are transferred to the conduit 4.
It enters the lower valve chamber 7' and is further guided into the inner tubular chamber 11' of the valve tube rod 11 through the lower small hole 13 of the valve tube rod 11.

There, the A and Bcv contents introduced as described above in the tubular chamber 11/.

That is, the first liquid and the second liquid are combined.

It foams and is sprayed.

When the valve pipe rod 11 is no longer pushed down, the spring 8 immediately pushes up the lower valve 7, and the backing 10 also returns to its original position, sealing the lower valve chamber 7/and the upper valve chamber 6', and at the same time closing the valve pipe. Push up the rod 11.

Generally, the propellant is filled in the A compartment of the pressure vessel together with the first liquid, and the second liquid is filled in the tube 2 housed in the same vessel.
B compartment is filled with the second liquid along with the propellant.
It is also possible to fill compartments.

In this case, as mentioned above, it is best to use 2 to 6% dimethyl ether, L, P, Q, or fluorinated hydrocarbon that has sufficient compatibility with the second liquid. What are the first and second liquids? , the first liquid is used in a ratio of 30 to 75%, preferably 35 to 70%, and the second liquid is 25 to 70%, preferably 30 to 65%, and the propellant is added to the first liquid, 2 to 10%, preferably 3 to 8% of the total amount of the second liquid and the propellant is filled into part A of the pressure vessel together with the first liquid or the second liquid.

If the difference in the filling ratio between the first liquid and the second liquid is too large, it will be difficult to obtain uniform foam when sprayed.

If the second liquid is less than 25% or the first liquid is less than 80%, the dyeing effect will be poor, and especially when dyeing brightly, sufficient brightness may not be obtained or dyeing may take a long time.

The aerosolized hair dye of the present invention.

(1) Since the first liquid and the second liquid are contained in the same container, hair can be dyed with one touch.

(2) Since the contents are not exposed to air until immediately before use, the hair dyeing power is strong and the color does not fade or wash off.

(3) The contents are squirted out in the form of abundant foam, which prevents heat conduction and prevents uneven dyeing.

It exerts effects such as.

Examples will be shown below to further explain the present invention.

Parts in the examples represent parts by weight.

Example 1 1st liquid paraphenylenediamine 2.5 parts paraaminodiphenylamine 1.0 resorcinol
2.5 Pholioxyethylene nonylphenol ether 30.0 Oleyl alcohol 20.0 Isopropyl alcohol 15.0 Distilled water 20.0 Sodium sulfite ethylenediaminetetraacetate 0.5 28% aqueous ammonia 9.0 Total 100.0 Second liquid Tzenacetin 0.05 part 35%
Hydrogen peroxide solution 17.00 Distilled water 82.94 Phosphoric acid 0.01 Total 10
0.00 0.5 Preparation of the first liquid The above raw materials other than aqueous ammonia, sodium sulfite, and sodium ethylenediaminetetraacetate were sequentially mixed and stirred at 70°C for 30 minutes to completely dissolve the mixture. It was cooled to ℃ and finally the remaining ingredients such as aqueous ammonia were added.

Preparation of second liquid Distilled water was heated to 90°C, zenacetin was dissolved therein, the liquid temperature was lowered to 35°C, hydrogen peroxide solution was added, and phosphoric acid was further added.

Fill 47 parts of the first liquid into compartment A of the pressure vessel shown in Figure 1 and fill 47 parts of the second liquid into compartment B of the inner bag of the pressure vessel, and then incorporate them into the pressure vessel. 6 parts of dimethyl ether were charged to the A compartment of the pressure vessel.

After the hair was cleaned, a mixture of the first and second liquids was injected from the nozzle of the pressure vessel, and the foam was evenly distributed throughout the hair.

After 10-15 minutes. Shampoo your hair and wash it thoroughly
It was possible to dye hair evenly and shiny in a shorter time than with conventional methods.

Example 2 First liquid orthoaminophenol 0.5 parts para-aminophenol 0.3 pyrogallol
0.5 Polyoxyethylene octyl phenol ether oleyl alcohol Isopropyl alcohol Distilled water Sodium sulfite 30, 0 20, 0 15, 0 23, 9 0, 3 The first and second liquids of the above formulation were prepared in the same manner as in Example 1. A pressure vessel was filled with 35 parts of the first liquid and 60 parts of the second liquid in the same manner as in Example 1.

It was filled with 5 parts of commercially available aerosol grade dimethyl ether.

It was applied to hair as in Example 1 with similarly excellent results.

Example 3 All the above ingredients except monoethanolamine and fragrance were mixed, heated to 70°C while stirring well, and heated to 70°C at the same temperature.
After stirring for a minute, the mixture was cooled to 20°C.

Finally, monoethanolamine and fragrance were added and stirred until uniformly dispersed to prepare a first liquid.

A second solution of the above formulation was prepared by mixing each component.

Similarly to Example 1, 48.5 parts of the first liquid and 3 parts of dimethyl ether for aerosol were filled into compartment A and compartment B of the pressure vessel shown in FIG. It was filled with.

This was applied to hair in the same manner as in Example 1 with excellent results.

Example 4 Among the above components, ammonia water, triethanolamine,
All ingredients except ethylenediamine, sodium tetraacetate, and fragrance were mixed, stirred, heated to 80°C, and stirred well for 30 minutes.

After cooling to 20°C, the remaining ingredients were added.

Chrycerol monostearate, polyoxyethylene cetyl alcohol, polyoxyethylene oleyl alcohol, and lanolin were mixed and dissolved at 75°C, and the mixture was emulsified in distilled water heated to 75°C.

After cooling to 30°C, hydrogen peroxide solution was added, and the pH was adjusted with phosphoric acid.

35 parts of the first liquid was filled in part B of the pressure vessel shown in FIG. 1, and 60 parts of the second liquid and a propellant (dimethyl ether for aerosol) were filled in part A of the same container.

After the hair was cleaned, a mixture of the first and second liquids was injected from the nozzle of the pressure vessel, and the foam was evenly distributed throughout the hair.

After 15 minutes, the hair was thoroughly washed with shampoo, and it was possible to bleach the hair evenly and to a glossy chestnut color in a shorter time (15 minutes) than with conventional bleaching agents (25 minutes).

[Brief explanation of drawings]

Figure 1 shows a pressure vessel having a spray valve for the hair dye of the present invention.
FIG. 2 is a schematic vertical cross-sectional view showing the structure of the valve chamber of the same pressure vessel, and FIG. 3 is a schematic vertical cross-sectional view showing the structure of the valve chamber of the same pressure vessel. It is a longitudinal section schematic diagram showing a positional relationship.

Claims (1)

[Claims] 1 Oxidation dye f4o ~ 10% by weight, surfactant 30 ~ 70%
%, a solvent of 10 to 50%, and an alkaline agent as a pH adjuster of 2 to 15% by weight, with the addition of a hair nourishing agent, an antioxidant, a stabilizer, and a fragrance if necessary. A second liquid consisting of 2 to 10% by weight of an oxidizing agent, water, and a stabilizer, with the addition of a hair nourishing agent if necessary, in a ratio of 30 to 75% by weight of the first liquid and 70 to 25% by weight of the second liquid. Separate compartments (Fig. 1 A, B) in a pressure vessel with spray valves are filled separately, and the propellant dimethyl ether is either the first liquid or the second liquid.
The first liquid and the second liquid are placed in the outer compartment containing the liquid (Fig.
It is filled at a ratio of 2 to 10% by weight of the total amount of liquid and propellant, so that when the spray valve is operated, the inner one is sprayed by the outer pressure, and the first liquid and second liquid are mixed to form bubbles. An aerosolized hair dye or bleach characterized by being sprayed in the form of a spray.