JP2002128645A - Hair dye for gray hair and method for hair dyeing of gray hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair dye having gray hair dyeing actions and further treatment effects on the hair and to provide a method for dyeing the hair. SOLUTION: This hair dye comprises 20-90 wt.% of a powder prepared by drying and pulverizing a leaf of Lawsonia inermis and 80-10 wt.% of a powder prepared by drying and pulverizing a leaf of Isatis indigotica. The method for dyeing the gray hair comprises applying a soft pasty hair dye paste for the gray hair prepared by kneading the hair dye with water to a part of a root of the hair in a wet or a dry state to be dyed toward the tip, covering the whole hair with a cover, allowing the hair in the covered state to stand for a prescribed time and then washing away the hair dye paste.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dye for gray hair and a method for dyeing white hair, and more particularly to a hair dye for gray hair having an excellent hair dyeing action and also having a treatment effect. The present invention relates to a method for dyeing gray hair.

[0002]

2. Description of the Related Art As a hair coloring agent for gray hair, one comprising various chemical dyes has been developed and is on the market. Since such chemical dyes may damage not only hair but also skin due to chemical side effects and the like, plant dyes, which are natural dyes, have been reviewed in recent years, and various dyes have been developed as hair dyes. I have. For example, a hair dye consisting of henna powder is known, and a hair conditioner consisting of henna powder and eye powder is also known (Japanese Patent Laid-Open No.
1-114315). Henna is a shrub of the family Sorrelidae originating from India, and dyes from this henna have been used since ancient times to dye nails in the Near East and blondes in Europe. In addition, it has been known that when lauson (hennatannic acid) contained in henna is absorbed by hair, the white hair portion of the hair is dyed orange-reddish brown. Eyes are plants of the family Polygonaceae and the legumes, and have been known as dyes for dyeing eyes since ancient times.

[0003]

The products which have been conventionally developed and marketed as hair dyes for white hair have a tendency to damage hair and the like if the hair dyeing action is good. There is a demand for a hair dye that has a so-called treatment effect as well as a hair effect and does not damage hair or the like.

[0004] In the above-mentioned prior art, henna is used not only as a hair dye but also as a treatment agent. However, henna cannot be dyed black by itself, and henna powder cannot be used. In the case of the hair conditioner using the eye powder and the eye powder, the hair and the like are hardly damaged, but they are not always satisfactory as white hair dyeing from the point of dyeing color and discoloration.

SUMMARY OF THE INVENTION In view of the problems of the prior art described above, an object of the present invention is to provide a hair dye for gray hair having not only an excellent hair dyeing action on hair but also having a treatment effect, and a hair dye using this hair dye. It is to provide a hair method.

[0006]

Means for Solving the Problems The present inventors have worked diligently to solve the above-mentioned problems, and have combined the henna powder and the large blue powder in a predetermined ratio to combine the gray part of the hair. It has been found that there is a treatment effect as well as a remarkable effect of dyeing black, and the present invention has been completed.

The hair dye of the present invention contains 20 to 90% by weight of a powder obtained by drying and grinding a henna leaf and 80 to 10% by weight of a powder obtained by drying and grinding a large green leaf. It is a thing. When the henna powder and the large blue powder are blended in such a ratio, the large blue suppresses the color of the henna, darkens the gray hair,
Can be dyed black. If the henna powder is more than 90% by weight and the large blue powder is less than 10% by weight, there is a problem that the white hair portion is not sufficiently dark browned and does not dye black. If the amount of the large blue powder exceeds 80% by weight, the hair dye paste does not sufficiently adhere to the hair when the hair dye is used, and as a result, each component does not sufficiently penetrate into the hair. is there.

[0008] The method for dyeing gray hair of the present invention is characterized in that after washing with shampoo, excess water is removed to obtain a henna having the above-mentioned mixing ratio with respect to wet or dry hair. A hair paste for gray hair in the form of a soft paste obtained by kneading powder and large blue powder with water is applied from the root to the tip of the part of the hair to be dyed, and the whole hair is covered with a cover. After leaving for a period of time, the hair dye paste is washed away, whereby the white hair portion can be sufficiently dark browned and dyed black.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The henna component used in the present invention acts so that reddish brown overlaps the color of the original hair, and thus also acts as a natural hair manicure and a color treatment agent. In the case of black hair or dyed hair, the henna pigment is superimposed on the surface of the hair or penetrates into the inside of the hair, so that it is also suitable for hair damaged by a hair dye or the like. The henna powder used in the present invention is obtained by subjecting the leaves to natural ventilation drying at a temperature of about 30 to 40 ° C. (for example, when produced in a region such as India, after drying by so-called shade drying),
It is a powdery substance obtained by pulverizing and pulverizing this with a pulverizer such as a ball mill or a stone mill.

[0010] Daisei is a cruciferous annual plant,
It has been known since ancient times as a natural dye. The large blue powder, after the natural air drying of the leaves at a temperature of about 30 to 40 ° C. as in the case of henna (for example, in the case of production in a region such as Iran, by drying in the shade) ), A powdery product obtained by pulverization and pulverization.

The hair dye for gray hair of the present invention is obtained by blending the henna powder obtained as described above and the large blue powder in a predetermined ratio. The greater the blending ratio of the large blue powder, the darker the dyeing becomes. However, if the blending ratio is too high, the paste is not sticky even when kneaded with a dispersion medium such as water at the time of preparing the paste, so that the usability is poor. However, if it is within the range of the compounding ratio specified in the present invention, the design / appropriateness of the hair type and gray content of the consumer, the balance with the skin color, the consumer's personal preference, etc. It can be blended and used as a hair dye.

According to the present invention, water, preferably hot water (possible with hot water up to the temperature just before boiling) and the like are added little by little to the henna powder and the large blue powder mixed in a desired ratio, and kneaded well. It is used as a loose soft paste that does not drip when applied to hair. Usually, the viscosity is about the same as mayonnaise.
When preparing the hair dye paste, the amount of water to be added to the composition of the henna powder and the large blue powder is not particularly limited, and is appropriately set according to the color to be dyed and the degree of the paste viscosity. be able to. For example, generally, about 60 to 100 ml of water can be used for 30 to 40 g of the formulation.

According to the present invention, the hair is washed with a shampoo to remove a hairdressing agent or the like that prevents dye from penetrating into the hair adhering to the surface of the hair, and then removes excess moisture to obtain a wet or dry state. And the hair dye paste prepared as described above, immediately after the preparation,
Apply from the root to the tip of the gray hair you want to dye,
Thereafter, the entire hair is covered with a cover such as a wrap or a shower cap so as to suppress the evaporation of water, and if necessary, the cover is covered with a towel or the like and left for a predetermined time (for example, about 1 hour). Thereby, a particularly remarkable gray hair coloring effect is achieved.

[0014] When kneading large blue with water or the like, the component indicane is converted into indoxyl, and when it comes into contact with air during kneading, the oxidation of this indoxyl proceeds, and it tends to become indigo. For this reason, by using it immediately after preparation as described above, this series of oxidation processes can be carried out inside the hair after it has been applied to the hair so that an excellent hair dyeing effect can be achieved. In addition, it is particularly preferable to apply a generous amount to the root, hairline, parting lines, and portions where gray hair is conspicuous. When applying, it is easier to apply directly to the hair with gloved hands. When using a steamed towel when covering with a towel, or wrapping with a wrap or shower cap and then warming with a dryer, the hair cuticle opens, making it easier for the dye to penetrate and absorb.

[0015] As described above, after the hair dye paste is applied and left for a predetermined time, the paste is preferably washed off with warm water and dried by passing air well through to complete the hair dyeing. If shampooing is desired thereafter, it is preferable that a certain amount of time (about 30 minutes) elapse after the hair dyeing is completed, since the fixation of the pigment to the hair is good. Even if it appears that the hair is not dyed immediately after the end of hair dyeing or immediately after shampooing, the color develops after several days and the color becomes darker and becomes stable. In addition, if you want to dye even darker, if the above hair dyeing process is repeated twice and three times, the colors will overlap and the dark browning will further progress,
A desired color can be obtained.

In addition, when the hair dye for gray hair of the present invention is used, in order to further improve the treatment effect and to further improve the adhesiveness to the hair, when preparing the hair dye paste, an egg is used. May be added to the hair, honey, seaweed, or the like, or a nutrient, for example, a vitamin or the like, may be added in order to impart a nutritional effect to the hair.

[0017]

EXAMPLES The present invention will be described in detail below with reference to examples and comparative examples, but the scope of the present invention is not limited by these examples.

In the following Examples and Comparative Examples, the henna powder and the large blue powder used were those prepared as described above. (Example 1)

First, henna powder and large blue powder were blended at the ratios shown in Table 1 to prepare five types of hair dyes for gray hair (A1, B).
1, C1, D1 and E1) were prepared. 30g of each compound
The mixture was kneaded while gradually adding 70 ml of hot water (40 ° C.) to obtain a hair dye paste (A2, B2,
C2, D2 and E2) were prepared.

[Table 1] The obtained pastes B2, C2 and D2 were loose soft pastes having a mayonnaise-like viscosity that did not drip when applied to hair. However, the appearance of paste A2 is almost the same as that of the case where large blue is kneaded alone with water, the viscosity is low, it is difficult to uniformly adhere to hair by paste, and the appearance and viscosity of paste E2 are only henna. The soft paste was almost the same as in the case of the above. (Example 2)

The hair dye pastes A2 to A2 obtained in Example 1
Yak hair was dyed using E2, and its hair dyeing effect was examined.

The material used as the sample was a yak hair (a test hair bundle manufactured by Staffus Co., Ltd.), which was washed with soap to sufficiently remove the deposits, and then used in a slightly wet state.
After applying the hair dye pastes A2 to E2 to the yak hairs in predetermined amounts, the entire yak hairs are wrapped with plastic wrap,
It was left for about one hour. Thereafter, the applied hair dye paste was washed away with warm water of about 40 ° C., and dried by passing air well. About the sample obtained in this way,
Immediately after the hair dyeing, one day after the hair dyeing, and seven days after the hair dyeing, the appearance of the yak hair was visually observed, and a photograph was taken to evaluate the hair dyeing effect. Hair dye paste B
The results for each of Nos. 2 to D2 are shown in FIGS.

In the case of paste A2, it does not sufficiently adhere to the yak hair of the specimen, henna hardly develops color immediately after dyeing, the color of large blue is strong, the color is light greenish, and one day later, the color is bluish. Yes, after 7 days it had a dull bluish hue. In addition, with regard to the paste E2, the large blue color hardly developed immediately after the hair dyeing, 1 day after, and 7 days after.

The pastes B2 to D2 are shown in FIGS.
As is clear from the above, the hair dyeing effect of the hair dye of the present invention is particularly remarkable. As can be seen from FIGS. 1 (A), 2 (A) and 3 (A), respectively, the degree of hair dyeing of the sample immediately after hair dyeing is still immediately after washing the hair dye paste. The color was weak, greenish and light brown, but became bluer as time passed by touching the air. As can be seen from FIGS. 1 (B), 2 (B) and 3 (B), the color of the henna progressed and the reddishness of the specimen 1 day after the hair dyeing, respectively. It became tinged and became a subdued orange to greenish color in combination with the bluish blue. This degree is more remarkable as the amount of large blue is larger,
A tendency for dark browning was observed. Also, regarding the degree of hair dyeing of the specimen 7 days after hair dyeing,
As is clear from FIGS. 1 (C), 2 (C) and 3 (C),
Dark browning progressed, and the degree was more remarkable as the amount of large blue increased. From this fact, in the case of the hair dye paste falling within the range of henna powder / large blue powder obtained in Example 1 = 20 to 90% by weight / 80 to 10% by weight, the pigment was well fixed and immediately after use. It can be seen that dark browning progresses and the color becomes darker and more stable after 1 to 7 days from use, even if it does not seem to have much color. Therefore, according to the hair dye of the present invention, it can be said that the hair dyeing action due to the synergistic effect of the components henna and large blue is remarkable. (Comparative Example 1)

An eye powder was added to the gray hair paste C2 of Example 1 instead of the large blue powder to prepare a control gray hair paste. Using this control paste and the paste C2 of the present invention, yak hair was dyed according to the method described in Example 2, and the respective hair dyeing effects were compared.

As a result, immediately after each hair dye paste was washed away, both of them were still weak in color development and greenish light brown, but became more bluish as time passed by contact with air. Was. As for the degree of hair dyeing 1 day and 7 days after hair dyeing, the same hair dyeing effect as in Example 1 was obtained in the case of the paste C2, but in the case of the control paste,
Compared to the case of paste C2, the dyed color is paste C2.
It did not darken brown as much, and when washed with shampoo, discoloration was observed. (Example 3)

A hair dye paste C2 obtained in Example 1 above was used as a specimen for a human having a total gray hair ratio of about 20%.
Was used to examine its gray hair dyeing effect.

[0027] The sample is washed with a commercially available shampoo,
After removing the hair dressing and the like adhering to the hair which inhibits the penetration of the dye, the hair was dried to remove excess water and the whole hair was made slightly wet. Then, using an appropriate amount of the hair dye paste C2 immediately after the preparation as described above, apply it to the entire hair, and apply it sufficiently from the root to the tip of the part to be dyed. The whole was wrapped in a wrap or shower cap, and further covered with a steamed towel, and allowed to stand for about one hour. Thereafter, the applied hair dye paste was washed away with warm water of about 40 ° C., and dried by passing air well. After 30 minutes or more after the hair dyeing, the hair was shampooed and dried sufficiently. Subsequently, the hair dyeing treatment was repeated once a day for a total of three days.
Every day, the appearance of the hair was visually observed to evaluate the hair dyeing effect.

As a result, immediately after the hair dyeing treatment on the first day, the color was still weak and greenish and light brown, but the bluish color increased as time passed by touching the air.
Before the hair dyeing treatment on the second day, the henna dyeing progressed, and it became reddish, and the color became orange to slightly light chestnut-like. Immediately after the hair dyeing treatment on the second day, almost the whole was slightly greenish as in the case immediately after the hair dyeing treatment on the first day, but the color was darker than that on the first day. 3
Before the hair dyeing treatment on the day, the henna color gradually overlapped and the dark brown feeling became stronger. Immediately after the hair dyeing treatment on the third day, the color immediately after the hair dyeing treatment on the second day becomes deeper,
The whole was a little greenish brown. One day after the hair dyeing treatment on the third day, dark browning is rapidly progressing due to the balance between henna that turns red and large blue that turns blue, and after seven days the hair turns completely dark brown and the gray hair becomes darker. Was.

Also, after using the hair dye of the present invention, the appearance such as gloss of the hair is extremely glossy as compared with the case where a normal hair dye is used. It was observed that the color and luster of the youthful natural hair was maintained. This also indicates that the hair dye of the present invention is useful as a hair treatment.

[0030]

According to the hair dye for gray hair of the present invention, since it contains henna powder and large blue powder in a predetermined blending ratio, an excellent hair dyeing effect on gray hair (dark browning) And darkening) as well as a good treatment effect.

[Brief description of the drawings]

FIG. 1A is a photograph showing the state of a sample immediately after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (B) A photograph showing the state of a sample one day after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (C) Photograph showing the state of a sample 7 days after hair dyeing showing the hair dyeing effect of the hair dye of the present invention.

FIG. 2 (A) is a photograph showing the state of a sample immediately after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (B) A photograph showing the state of a sample one day after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (C) Photograph showing the state of a sample 7 days after hair dyeing showing the hair dyeing effect of the hair dye of the present invention.

FIG. 3 (A) is a photograph showing the state of a sample immediately after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (B) A photograph showing the state of a sample one day after hair dyeing showing the hair dyeing effect of the hair dye of the present invention. (C) Photograph showing the state of a sample 7 days after hair dyeing showing the hair dyeing effect of the hair dye of the present invention.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tami Kawauchi 1-19-7 Musashinodai, Fussa-shi, Tokyo Inside Niard Co., Ltd. (72) Inventor Shun Yamamoto 1-19-7 Musashinodai, Fussa-shi, Tokyo Shares Inside the company Niard (72) Inventor Yoshiyuki Kubo 1-19-7 Musashinodai, Fussa-shi, Tokyo F-term in the company Naiad (reference) 4C083 AA111 AA112 AB051 CC36 DD22 EE26

Claims (2)

[Claims] 1. A powder 20 obtained by drying and grinding a henna leaf.
A powder 80 obtained by drying and pulverizing a large green leaf with about 90% by weight.
A hair dye for gray hair, comprising 10 to 10% by weight. 2. After washing the hair with a shampoo, excess water is removed and the henna powder and the large blue powder having the compounding ratio according to claim 1 and water are added to the wet or dry hair. A soft paste hair dye paste for gray hair obtained by kneading is applied from the root to the tip of the portion of the hair to be dyed and left for a predetermined period of time with the whole hair covered with a cover. A hair dyeing method for gray hair, characterized by washing away the agent paste.