JP6712837B2 - Two-agent simultaneous discharge aerosol type hair dye - Google Patents

Description

The present invention relates to a two-agent simultaneous discharge type hair dye.

The conventional cream-type hair dye does not cause any particular problem when the first agent containing the alkaline agent and the second agent containing the oxidizing agent are used separately, but the first agent and the second agent are not used. When used by discharging at the same ratio of a predetermined discharge amount, it is necessary to adjust the discharge amount of the first agent and the second agent, and considering that the consumer uses it, the first agent and the second agent The discharge amount with the agent had to be stable from start to finish.

However, in an aerosol container in which a cream-shaped hair dye is simply filled in an inner bag of a pressure resistant container having an inner bag, and compressed gas is filled between the inner bag and the pressure resistant container, from the beginning to the end of use. When evaluating the discharge amount of, the discharge amount changes depending on the hair dye to be filled.Therefore, when using the first agent and the second agent at the same discharge ratio at the same time, use them from the beginning. Until the end, the first agent and the second agent could not be simultaneously ejected at a predetermined ejection ratio.

Also, conventional cream-type hair dyes are put on a tray etc. so that the first agent and the second agent are in a predetermined mixing ratio, and then applied to hair after being thoroughly mixed with a comb or a brush. When applying a two-agent simultaneous discharge type hair dye, which is used by simultaneously discharging and the second agent at a predetermined discharge amount ratio, when directly applying to the hair after discharging, or after applying to a brush It is applied to the hair and the first and second agents are mixed on the hair, so uneven dyeing will occur if the first and second agents are not ejected at the same ratio at the prescribed ejection rate. There was something.

Therefore, it has been proposed to blend a silicone with the first agent and/or the second agent to prepare a stock solution having a stable discharge amount over time without changing the discharge amount (Patent Document 1).

JP, 2004-91356, A

The present invention, in a two-agent simultaneous discharge type hair dye filled in an aerosol container having a mechanism for simultaneously discharging the first agent and the second agent, the first agent and the second agent are prescribed from the beginning to the end of use. It is an object of the present invention to provide a hair dye that can be dyed on a hair easily and evenly and uniformly by discharging the hair at the same discharge amount ratio.

MEANS TO SOLVE THE PROBLEM As a result of earnestly studying in order to solve the said subject, this inventor was a 1st agent in the 2 agent simultaneous discharge type hair dye with which the aerosol container which has a mechanism which discharges 1st agent and 2nd agent simultaneously was filled. And the viscosity of the second agent are both 50,000 mPa·s or less, and the viscosity ratio of the first agent and the second agent is set to the first agent/second agent=0.8 to 1.2. As a result, it was found that there is little change in the discharge rate ratio of the first agent and the second agent from the beginning to the end of use, and stable and simultaneous discharge can be performed at a predetermined discharge rate ratio, thus completing the present invention. Came to let me.

According to the present invention, in a two-agent simultaneous discharge type hair dye filled in an aerosol container having a mechanism for simultaneously discharging the first agent and the second agent, the first agent and the second agent from the beginning to the end of use. Since there is little change in the discharge amount ratio and the stable discharge can be performed simultaneously at a predetermined discharge amount ratio, it is possible to dye the hair easily and evenly.

In the present invention, the discharge amount is weight, and the ratio is a weight ratio unless otherwise specified, and the predetermined discharge amount ratio of the first agent and the second agent can be arbitrarily set.

The two-agent simultaneous ejection type hair dye of the present invention comprises a first agent containing an alkaline agent and a second agent containing an oxidizing agent, and the viscosity of both the first agent and the second agent is 50,000 mPa· s or less. Considering the elongation and sagging drop after application to hair, it is preferably 5,000 to 25,000 mPa·s. When it exceeds 50,000 mPa·s, it becomes difficult to discharge the compressed gas or the like from the container, so that the discharge amount becomes uneven, and it becomes difficult to simultaneously discharge at a predetermined discharge amount ratio.

In addition, the viscosity means that each agent obtained by ejecting the first agent and the second agent of the two-agent simultaneous discharge type hair dye into different containers is adjusted to 20 degrees, and the TVB-10 type viscometer (Toki Sangyo Co., Ltd. Co., Ltd.) SPINDLE NO. M4 (CODE NO.23) was used, and the measurement was made 1 minute after rotating at 12 rpm.

The two-agent simultaneous ejection type hair dye of the present invention comprises a first agent containing an alkaline agent and a second agent containing an oxidizing agent, and the viscosity ratio of the first agent and the second agent is Agent/second agent=0.8 to 1.2. It is preferably 0.9 to 1.1. When the viscosity ratio is less than 0.8, the viscosity of the first agent is lower than that of the second agent, so that the first agent is more likely to be ejected and the ejection amount of the first agent is increased. When the viscosity ratio exceeds 1.2, the viscosity of the second agent is lower than that of the first agent, so that the second agent is easily ejected and the ejection amount of the second agent is increased. In this way, when there is a difference in viscosity between the first agent and the second agent, a difference occurs in the discharge amount of the first agent and the second agent, and the first agent and the second agent have a predetermined discharge rate ratio. It becomes difficult to discharge at the same time.

The two-part simultaneous ejection type hair dye of the present invention is characterized in that both the first part and the second part contain 0.1 to 10.0% by weight of a higher alcohol.

Examples of higher alcohols contained in the two-agent simultaneous discharge type hair dye of the present invention include, for example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, isostearyl alcohol, oleyl alcohol. , 2-hexyldecanol, 2-octyldodecanol and the like. Among these, linear saturated higher alcohols such as lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, and behenyl alcohol are preferable from the viewpoint of stability. Its content is 0.1 to 10.0% by weight, preferably 0.5 to 5.0% by weight. If it is less than 0.1% by weight, the stability of the agent such as separation is affected over time, and if it exceeds 10.0% by weight, the viscosity of the agent becomes high and it becomes difficult to discharge the agent from a container by compressed gas or the like. Therefore, the discharge amount becomes uneven, and it becomes difficult to simultaneously discharge the first agent and the second agent at a predetermined discharge rate ratio.

A nonionic surfactant can be appropriately blended in the two-agent simultaneous ejection type hair dye of the present invention. Examples of the nonionic surfactant include polyoxyethylene (hereinafter referred to as POE) alkyl ethers, POE alkylphenyl ethers, POE/polyoxypropylene (hereinafter referred to as POP) alkyl ethers, POE fatty acids, and POE. Sorbitan fatty acid esters, POE castor oil, POE hydrogenated castor oil, POE sorbitol tetra fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester, sucrose fatty acid ester, alkyl polyglucoside, N-alkyldimethylamine oxide, POE Examples thereof include propylene glycol fatty acid ester.

Among these, POE alkyl ethers, POE alkyl phenyl ethers, POE POP alkyl ethers, and POE sorbitan fatty acid esters are preferable because they are resistant to acids and alkaline agents, and among these, POE alkyl ethers are particularly preferable. .. Specific examples of the POE alkyl ethers include POE lauryl ether, POE cetyl ether, POE stearyl ether, POE behenyl ether, POE oleyl ether and the like. Its content is 0.1 to 10.0% by weight, preferably 2.0 to 6.0% by weight. If it is less than 0.1% by weight, the stability of the agent such as separation is affected over time, and if it exceeds 10.0% by weight, the viscosity of the agent becomes high and it becomes difficult to discharge the agent from a container by compressed gas or the like. Therefore, the discharge amount becomes uneven, and it becomes difficult to simultaneously discharge the first agent and the second agent at a predetermined discharge rate ratio. Further, the nonionic surfactants preferably contain two or more different types, preferably one type has an HLB value of less than 9.0 and the other type has an HLB value of 13.0 or more.

In addition, HLB is an index showing a hydrophilic-lipophilic balance (Hydrophile-Lipophilic Balance), and in the present invention, a value calculated using the following formula by Oda and Teramura et al. was used.
HLB={(Σ inorganic value)/(Σ organic value)}×10

Hydrocarbons can be appropriately added to the two-agent simultaneous discharge type hair dye of the present invention. Examples of the hydrocarbon include α-olefin oligomer, liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, petrolatum, polyethylene powder, ozokerite, polybutene, and ceresin. Of these, liquid paraffin, light isoparaffin, light liquid isoparaffin, and liquid isoparaffin are preferable from the viewpoint of stability. Its content is 0.1 to 20.0% by weight, preferably 2.0 to 15.0% by weight. If it is less than 0.1% by weight, the stability of the agent such as separation will be affected, and if it exceeds 20.0% by weight, the viscosity of the agent will be high and it will be difficult to discharge the agent from the container by compressed gas or the like. Therefore, the discharge amount becomes uneven, and it becomes difficult to simultaneously discharge the first agent and the second agent at a predetermined discharge rate ratio.

In addition to the two-agent simultaneous ejection type hair dye of the present invention, other than the above, an oxidizing dye, an alkali agent, an oxidizing agent, silicones, waxes, animal and vegetable oils and fats, higher fatty acids, organic solvents or penetration enhancers, polyhydric alcohols, Esters, ethers, cationic surfactants, amphoteric surfactants, anionic surfactants, cationic polymers, anionic polymers, amphoteric polymers, protein derivatives and amino acids, preservatives, chelating agents, stabilizers, Antioxidants, pH adjusters, various plant extracts, crude drug extracts, vitamins, pigments, fragrances, ultraviolet absorbers and the like can be appropriately added.

The two-component simultaneous ejection type hair dye of the present invention can be used as a decolorizing agent when an oxidizing dye is not mixed .

The two-agent simultaneous discharge type hair dye of the present invention is a double aerosol container described in Japanese Patent Application Laid-Open No. 2004-91356 (Patent Document 1) or a double structure aerosol described in Japanese Patent Application Laid-Open No. 2005-231644. A container or the like can be used.

As the compressed gas used for the two-agent simultaneous discharge type hair dye of the present invention, for example, dimethyl ether, liquefied petroleum gas, nitrogen gas, CFC substitute, etc., which are generally used for aerosol products, compressed air and the like can be used. I can. Of these, nitrogen gas is preferable from the viewpoint of preventing alteration.

In the two-component simultaneous ejection type hair dye of the present invention, the initial internal pressure applied to the first agent and the second agent is preferably 0.3 to 0.8 MPa at 25° C. from the viewpoint of usability, and 0.4 to It is more preferably 0.7 MPa. Further, by setting the ratio of the initial internal pressure applied to the first agent and the second agent to be the first agent/second agent=0.95 to 1.05, the effect of the present invention can be further obtained.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. All blending amounts are weight percent.

Prior to the examples, the test method and evaluation method adopted in each example will be described.

Simultaneous discharge property A hair dye was prepared according to the formulations described in Examples and Comparative Examples, and the ratio of the predetermined discharge amounts of the first agent and the second agent was set to the first agent/second agent=1.0. The first inner pouch filled with 50 g of the first agent of the prepared stock solution and the second inner pouch filled with 50 g of the second agent were housed in one pressure container, and nitrogen gas was filled between the inner pouch and the pressure container. Measures the discharge amount (g/10 seconds) of the first agent and the second agent from the beginning to the end of the two-agent simultaneous discharge type hair dye having a mechanism for simultaneously discharging the first agent and the second agent. Then, the discharge ratio of the first agent and the second agent was obtained. The evaluation criteria are as follows.
<Evaluation criteria>
⊚: Very good The ratio of the discharge rate (g/10 seconds) of the first agent and the second agent from the beginning to the end of use is ± with respect to the predetermined discharge rate of the first agent and the second agent. Within 5% ○: Good The ratio of the discharge rate (g/10 seconds) of the first agent and the second agent from the beginning to the end of use against the predetermined discharge rate of the first agent and the second agent. Is ±6-10%
Δ: Normally, the ratio of the discharge rate (g/10 seconds) of the first agent and the second agent from the beginning to the end of use is ±11 with respect to the predetermined discharge rate of the first agent and the second agent. ~ 20%
X: Poor The ratio of the discharge amount (g/10 seconds) of the first agent and the second agent from the beginning to the end of use is ±21 with respect to the predetermined discharge amount ratio of the first agent and the second agent. Exceeds%

Examples 1-13, Comparative Examples 1-5
The hair dyes shown in Examples 1 to 13 and Comparative Examples 1 to 5 were prepared. Each simultaneous ejection property was evaluated, and the results are shown in Tables 1 to 3.

As is clear from Tables 1 and 2, the two-component simultaneous ejection type hair dye of the present invention was excellent in simultaneous ejection property. On the other hand, from Table 3, Comparative Examples 1 to 3 in which the viscosity difference between the first agent and the second agent is large, Comparative Example 4 in which the viscosity of the first agent is high and the viscosity difference is large, and both the first agent and the second agent Comparative Example 5 having a high viscosity and a large viscosity difference had a poor simultaneous ejection property.

Example 14 (decolorizing agent)
A decolorizing agent having the following composition was prepared, and the ratio of the predetermined ejection amounts of the first agent and the second agent was set to first agent/second agent=1.0. The first agent containing the first interior pouch filled with 50 g of the undiluted solution and the second interior pouch filled with 50 g of the second agent in one pressure container, and nitrogen gas filled between the interior pouch and the pressure vessel. A two-component simultaneous ejection type decolorizing agent having a mechanism for simultaneously ejecting the second agent and the second agent was evaluated.
(First agent)
Ingredient amount (wt%)
1) Cetyl alcohol 5.00
2) Liquid isoparaffin 10.00
3) Liquid paraffin 5.00
4) Dimethyl polysiloxane 5.00
5) Polyoxyethylene stearyl ether 5.00
6) Stearyl trimethyl ammonium chloride (70%) 1.50
7) Stearic acid 0.50
8) Fragrance 0.50
9) Polychlorinated dimethylmethylene piperidinium liquid 1.00
10) Soy protein hydrolyzate 0.50
11) Hydrolyzed silk liquid 0.50
12) Ammonia water (25%) 6.00
13) Purified water remaining
Total 100.00
Manufacturing method Ingredients 1 to 8 heated and melted at 80° C., and ingredients 9 and 13 heated and melted at 85° C. are added and mixed. Then, the mixture was cooled with stirring, components 10 to 12 were added at 45° C., and the mixture was cooled with stirring to room temperature to obtain a first agent.
Initial internal pressure 0.50 MPa (filling: nitrogen gas)
Viscosity 24,000 mPa·s

(Second agent)
Ingredient amount (wt%)
1) Cetyl alcohol 5.00
2) Stearyl alcohol 4.00
3) Liquid paraffin 5.00
4) Polyoxyethylene cetyl ether 5.00
5) Hydroxyethanediphosphonic acid (60%) 0.20
6) Phosphoric acid 0.02
7) Disodium hydrogen phosphate 0.10
8) Hydrogen peroxide water (35%) 16.60
9) Purified water remaining
Total 100.00
Manufacturing method Ingredients 1 to 5 heated and melted at 80° C. are added and mixed with ingredients 6, 7, and 9 heated and melted at 85° C. Then, the mixture was cooled with stirring, component 8 was added at 40° C., and the mixture was cooled to room temperature with stirring to obtain a second agent.
Initial internal pressure 0.50 MPa (filling: nitrogen gas)
Viscosity 25,000 mPa·s
Viscosity ratio (first agent/second agent) 0.96

Example 14 was excellent in simultaneous ejection property.

Claims (2)

A dual-agent simultaneous discharge aerosol type cream hair dye,
The first interior pouch filled with the first agent and the second interior pouch filled with the second agent are housed in one pressure vessel, compressed gas is filled between the interior pouch and the pressure vessel, and the same pressure is applied to A double structure aerosol container having a mechanism for simultaneously discharging the first agent and the second agent;
A cream-type hair dye composed of a first agent and a second agent, which is used by being filled in a double-structured aerosol container, wherein the viscosity of the first agent and the second agent after discharge is both 50,000 mPa·s The ratio of the viscosities of the first agent and the second agent after ejection is as follows: first agent/second agent=0.8 to 1.2, and the first agent and the second agent each have a viscosity of 0. 1 to 20.0% by weight of hydrocarbon, 0.1 to 10.0% by weight of lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol , aralkyl alcohol and behenyl alcohol. A two-component simultaneous ejection aerosol type cream hair dye, comprising: a higher alcohol and a hair dye containing 0.1 to 10.0% by weight of a nonionic surfactant. The two-agent simultaneous discharge aerosol type cream-like hair dyeing according to claim 1, wherein the change in the ratio of the discharge amount of the first agent to the predetermined second agent from the beginning to the end of use is ±10% or less. Agent.