JP2011001282A - Hair and scalp-shampooing agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shampoo preparing the hair and the scalp in a flexible state and in the healthy state in the shampooing of the hair and the scalp by strongly cleaning oxidized sebum and protein stain by the characteristics as a weak alkaline agent at the start of the shampooing, heightening the affinity of the hair and the scalp by changing the acidity to weak acid with time at the latter half, and further allowing proteins to be adsorbed by increasing the subcutaneous blood flow by the percutaneous absorption into the scalp of carbon dioxide gas generated by a neutralization reaction.SOLUTION: The hair and scalp-shampooing agent is obtained by preparing an agent-A and an agent-B, containing a surfactant as a main component, mixing sodium bicarbonate of 3-15 wt.% with the agent-A when used, and previously mixing an organic acid such as citric acid of 5.8-20 wt.% with the agent-B. When using the agent, the separately packaged sodium bicarbonate is mixed with the agent-A just before the use, the agent-A and the agent-B are taken on the hand, and the shampooing is carried out. As a result, the acidity is changed from the weak alkali to the weak acid with time, and in addition, the subcutaneous blood flow is promoted by the carbon dioxide gas to impart moisture, gloss and flexibility to the hair, and to improve the health of the scalp.

Description

  The present invention relates to a cleaning agent (shampoo) that can change the Ph over time during a single cleaning of the hair and scalp to provide an ideal hair and scalp cleaning effect and particularly a scalp health effect.

  In general, commercially available shampoos focus on removing dirt from hair and scalp, and their Ph is kept weakly alkaline or neutral.

  However, if the alkalinity is strong, the hair and scalp after shampooing may become rusty, damage the hair, dry the scalp and cause dandruff and itching.

  Therefore, under the present circumstances, after the shampooing, the hair is moistened and supple with a rinse that is weakly acidic and contains an additional component such as a silicon-based material, and it takes two troubles to prevent the scalp from drying.

  However, recently, a product that has been called a rinse-in shampoo and mixed with shampoo has been sold so that this two-time effort can be done only once. However, in the case of this rinse-in shampoo, the shampoo and rinse effect are naturally However, there is a disadvantage that it is inferior compared to a single product, and even though it is washed with care, an extra rinse component is added to the scalp after washing.

  Incidentally, as a well-known example of a rinse-in shampoo, JP 08-012535 A discloses a shampoo that is extremely excellent in the dispersion stability of zinc pyrithione having an anti-dandruff effect, produces rich bubbles, and has a rinse effect. 18.0 to 20.0 parts by weight of sodium polyoxyethylene lauryl ether sulfate (addition of 3 moles of ethylene oxide), 2.4 to 2.6 parts by weight of lauric acid diethanolamide, 0.5 to 0.7 parts by weight A mixture of cellulose trimethylammonium salt and 0.5 to 5.0 parts by weight of zinc pyrithione is introduced.

  However, in the case of this known example, since the shampoo agent and the rinse agent are mixed in advance, the effect is shifted depending on how Ph is adjusted, or it is sufficient for the finish of the hair and the health of the scalp. There is a problem that a satisfactory effect cannot be obtained.

  As a result of earnest research on a cleaning agent that eliminates the rustiness of the hair described above and eliminates the cause of dandruff and itching due to drying, and has an ideal cleaning effect for the scalp, At the time of shampooing, the Ph is changed to weak alkalinity at the beginning and weakly acidic in the second half, and carbon dioxide is generated at the time of shampooing and absorbed into the scalp to promote blood flow to promote health. This is what we propose here because we were able to develop a cleaner that can

As described above, the invention described in claim 1 is
Adjusting the A and B agents with water, sodium olefin sulfonate, uramide propyl betaine, quaternium, phenoxyethanol as the main ingredients,
The agent A is mixed with sodium bicarbonate in a separate package when used,
The B agent is mixed with organic acids in advance,
Washing hair by hand with agent A mixed with sodium bicarbonate and organic acid at the time of washing the hair makes the first half of the hair wash weakly alkaline, and then carbon dioxide by neutralization reaction of sodium bicarbonate and organic acids At the same time, in the second half of the hair washing, it is changed to weak acid over time, washing the hair and scalp and giving the hair suppleness. It is characterized by promoting blood circulation and thereby improving the health of the scalp.

  According to this invention, at the time of one shampoo, since it is kept weakly alkaline at the beginning, dirt is effectively removed, and carbon dioxide gas is generated by neutralization reaction of sodium bicarbonate and organic acid in the middle, and the latter half Scalp health by changing to weak alkalinity and moisturizing and shining the hair, suppressing dryness of the scalp to prevent dandruff and itching, and absorbing subcutaneous carbon dioxide to promote subcutaneous blood circulation It can contribute to the conversion.

Furthermore, the invention according to claim 2 is the hair and scalp cleaning agent according to claim 1, wherein the amount of sodium bicarbonate mixed with agent A is 3 to 15% by weight of agent A and agent B The amount of the organic acid to be mixed is set to 5.8 to 20% by weight of the B agent.
This invention provides the most effective cleaning agent.

  Further, in the invention described in claim 3, the organic acid used in the hair and scalp cleaning agent described in claim 1 is one or more selected from citric acid, malic acid, lactic acid, tartaric acid, and glycolic acid. It is characterized by being 2 or more types.

  By adopting the above configuration, the present invention is a cleaning agent having a rinsing effect due to the change over time of maintaining a weak alkalinity for several minutes from the start of cleaning in the cleaning of hair and scalp and then neutralizing after neutralization. Is extremely effective.

  In addition, sodium bicarbonate and organic acids such as citric acid generate carbon dioxide when neutralizing reaction, and this carbon dioxide is absorbed through the skin to promote subcutaneous blood flow, thereby inducing protein adsorption. It has the effect of making the scalp soft and healthy.

It is explanatory drawing of the container with a pump filled with the cleaning agent which concerns on this invention.

  Since the present invention has a stoichiometric molar reaction ratio of sodium bicarbonate: citric acid hydrate≈6: 5, this chemical neutralization reaction and the characteristics of carbon dioxide generation accompanying neutralization are expressed in hair and Apply to scalp detergents and use organic acids such as sodium bicarbonate and citric acid as detergents to optimize reaction time and neutralization over time from weakly alkaline to weakly acidic There is a feature in the point.

  Since hair and scalp are weakly acidic, it is desirable that hair washing and scalp cleaning agents be weakly acidic because of their scientific affinity with hair and scalp.

  On the other hand, soaps / alkali sulfate detergents are alkaline in nature, and are characterized by a high detergency in which proteins, oils and oxidized sebum are adsorbed and melted for washing. However, due to its alkaline properties, the scalp proteins are melted, the scalp is dried due to excessive oil removal, and the hair surface swells, causing squeaking and damage. May end up.

  In contrast, acidic carbonates such as citric acid are effective in dissolving inorganic salts such as calcium carbonate and calcium urate, so depending on the concentration, enzymes that are necessary for bacteria and microorganisms It is expected to have a cleaning effect opposite to that of the alkaline cleaning agent described above.

  The present invention has been made paying attention to these contradictory properties, and is a cleaning agent having the characteristics of both an alkaline cleaning agent and an acidic cleaning agent, which is an ideal cleaning effect over time in cleaning hair and scalp. To demonstrate.

  Furthermore, this feature brings about an appropriate effect for the target cleaning by applying the neutralization reaction between sodium bicarbonate and organic acids such as citric acid and the cleaning effect of carbon dioxide gas generated in addition to the cleaning agent. It is also characterized in that it changes from alkaline to weakly acidic over time.

  Furthermore, the blending ratio is realized so that scalp massage with carbon dioxide gas can be performed simultaneously. As a result, the oil, oxidized sebum, and protein stains that are characteristic of the alkaline agent are strongly washed, and the acidity changes over time, resulting in weak acidity with high affinity for the scalp and hair, and two different properties within one washing time. This makes it possible to finish cleaning.

  In addition, the generated carbon dioxide gas is absorbed percutaneously to increase the subcutaneous blood flow, or protein adsorption is caused to make the scalp soft and healthy.

The water ratio of the mixed ratio sodium bicarbonate is approximately 8%.
・ Sodium bicarbonate ... 3wt% ~ 15wt%
・ Citric acid and other organic acids ... 5.8 wt% to 20 wt%

The present invention achieves the object by mixing sodium bicarbonate, which will be described later, with the A agent and organic acids with the B agent within the above numerical values. Since the reaction time for weak acidity is delayed, it is not possible to obtain a sufficient effect by one shampooing, or it is necessary to lengthen the shampooing time or conversely shorten the shampooing time.
Further, the neutralization reaction is excessive or insufficient, and the generation of carbon dioxide gas cannot be properly maintained.

  In the present invention, assuming that the normal hair washing / washing time is 5 minutes, when 6 to 7 wt% sodium bicarbonate and 10 wt% citric acid are mixed, a weak alkalinity of 10 to 8 Ph in a foamed state until about 0 to 2 minutes is obtained. The neutralization is neutral in about 2 to 3 minutes, becomes weakly acidic after 3 minutes, and is an ideal neutralization reaction within 5 minutes of hair washing and washing time.

  Therefore, the combination of the above-mentioned mixing ratios can adjust a reasonable reaction time of 2 minutes to a maximum of 10 minutes, and can neutralize and denature within a time that can be said to be a reasonable cleaning agent for hair washing and washing. This is the only mixed rate zone. Except when using the above mixing ratio as a hair and scalp cleaning agent, as a cleaning agent, neutralization / denaturation from a reasonable alkali to an acid and neutralization / denaturation with a reasonable time shift, or sufficient It is difficult to secure the amount of carbon dioxide generated.

  In addition, as a cleaning component to which the present invention is applied, those using a potash soap-based cleaning component are inappropriate because the cleaning component is decomposed and deteriorated by reaction with organic acids such as sodium bicarbonate and citric acid. Otherwise, there are no restrictions.

  The main components of the basic detergent are sodium alkylethanol sulfate, fatty acid coconut oil diethanolaluminum, polyoxyethylene alkyl ether, carboxymetal cellulose, sodium tripolyphosphate, and other alkyl sulfonates, and betaine amphoteric detergents. There is a cationic rinsing agent, and in the present invention, the above-described effects can be achieved by using a mixture of sodium bicarbonate and an organic acid such as citric acid separately.

  Agent A and Agent B were mainly composed of: olefin (C14-16) sulfonic acid Na, uramidopropylbetaine, and quaternium-33.

First, A agent and B agent were adjusted with the following component and mixing ratio.
Agent A: water / olefin (C14-16) sulfonic acid Na 11.1 wt%, uramidopropyl betaine 2.1 wt%, quaternium 1.3 wt%, BG 0.6 wt%, phenoxyethanol 0.5 wt%
Agent B: water / olefin (C14-16) sulfonic acid Na 3.7 wt%, uramidopropyl betaine 9 wt%, quaternium-336.5 wt%, BG 3 wt%, phenoxyethanol 0.5 wt%

The detergent A according to the present invention was obtained by stirring and mixing 7 wt% sodium bicarbonate into the A agent and 10 wt% citric acid into the B agent in 200 ml of the A agent and the B agent at room temperature.
However, if sodium bicarbonate is mixed in advance, it reacts with moisture and deteriorates over time, so prepare sodium bicarbonate in a separate package, put it in just before use, and stir and mix with a handshake And use it.

The agent A and agent B obtained as described above are filled in, for example, the two-liquid 2, three-separated container 1 shown in FIG. 1, and 10 g each of agent A and agent B is obtained by operating the pump 4 once. Was taken and the change in Ph over time was measured using a Ph test paper while washing the hair in the usual way. In the figure, reference numerals 5 and 6 indicate the suction pipes of the pump 4 for sucking the A agent 2 and the B agent 3 respectively. The pumps sucked up from these two suction pipes are mixed by the pump 4 and discharged from the nozzle 7. Can do.
The results are as follows.
0 minutes: red-blue and weakly alkaline 1 minute: red-blue, weakly alkaline 2 minutes: red-blue, weakly alkaline 3 minutes: blue-red, weakly acidic 4 minutes: blue-red, weakly acidic 5 minutes: blue- Red and slightly acidic

  The amount of carbon dioxide generated in the change in Ph over time was 1,000 ppm or more. As a result, the hair and scalp can be removed cleanly at the beginning, and the hair is supple and glossy in the latter half, and the scalp absorbs carbon dioxide transcutaneously to improve subcutaneous blood flow and improve health. It was. In addition, in the container 1 of FIG. 1, when it is desired to change the mixing ratio (suction ratio) of the A agent and the B agent, it is possible to change the sectional ratio of the suction pipes 5 and 6. Alternatively, agent A and agent B may be filled in separate containers and taken from each container when used.

-A agent and B agent are the same as Example 1.-Sodium bicarbonate ... 15 wt%
・ Citric acid and other organic acids ... 20wt%
・ Amount of generated carbon dioxide: 1,200 ppm
When the hair was washed by the same method as in Example 1 as to the mixing method and the usage method, no difference in effect was observed.

-Agent A and agent B are the same as in Example 1.-Sodium bicarbonate ... 3 wt%
・ Organic acids such as citric acid ... 5.8wt%
・ Amount of carbon dioxide generated ... 950ppm
When the hair was washed with the same mixing method and method of use as in Example 1, a slight decrease in the effect was observed, but there was no practical problem.

Comparative Example 1

-Agent A and Agent B are the same as in Example 1.-Sodium bicarbonate ... 16 wt% or more-Organic acids such as citric acid-21 wt% or more-Carbon dioxide generation amount ... 1,300 ppm or more When the hair was washed in the same manner as in Example 1, it did not show weak acidity even after 5 minutes from the start of washing, and was not completely neutralized in time. Further, the generation of carbon dioxide gas was sufficient but neutralization was incomplete, so that the alkaline detergency was excessive. As a result, there was a scalp pain due to overdrying of the scalp.

Comparative Example 2

-Agent A and Agent B are the same as in Example 1.-Sodium bicarbonate ... 2 wt% or less-Organic acids such as citric acid-5 wt% or less-Carbon dioxide generation amount ... 900 ppm or less When the hair was washed in the same manner as in Example 1, it showed weak acidity from the start to the end of washing, the alkaline washing effect was not observed, the amount of carbon dioxide gas generated was small, and the object of the present invention was achieved. Could not get enough effect.

Industrial usage analysis

・ Cleaning hair and scalp and improving the health of the scalp.
・ Pet shampoo ・ Body washing

Claims (3)

Adjusting the A and B agents with water, sodium olefin sulfonate, uramide propyl betaine, quaternium, phenoxyethanol as the main ingredients,
The agent A is mixed with sodium bicarbonate in a separate package when used,
The B agent is mixed with organic acids in advance,
Washing hair by hand with agent A mixed with sodium bicarbonate and organic acid at the time of washing the hair makes the first half of the hair wash weakly alkaline, and then carbon dioxide by neutralization reaction of sodium bicarbonate and organic acids At the same time, in the second half of the hair washing, it is changed to weak acid over time, washing the hair and scalp and giving the hair suppleness. A hair and scalp cleaning agent that promotes blood flow and thereby makes the scalp healthy.   In claim 1, the amount of sodium bicarbonate mixed with agent A is set to 3 to 15% by weight of agent A, and the amount of organic acids mixed with agent B is set to 5.8 to 20% by weight of agent B. The hair and scalp washing | cleaning agent of Claim 1 formed. The hair and scalp according to claim 1, wherein the organic acids used in claim 1 are one or more selected from citric acid, malic acid, lactic acid, tartaric acid, and glycolic acid. Washing soap.

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