JP2020097530A - Hair treatment agent and hair treatment method - Google Patents

Abstract

To provide hair treatment agents that can apply a permanent wave or straightening without breaking disulfide bonds in the hair and further without reforming disulfide bonds, during treatment.SOLUTION: The hair treatment agent of the present invention is a hair treatment agent for applying a permanent wave or straightening to the hair, which contains a first agent containing water and a basic amino acid, and a second agent containing water and an organic acid.SELECTED DRAWING: None

Description

The present invention relates to a hair treatment agent and a hair treatment method. More specifically, the present invention relates to a hair treatment agent suitable for applying permanent wave or straightening to hair, and a hair treatment method.

Conventionally, it has been required to impart a wavy shape to hair by a permanent wave and maintain this shape for a long time.

For example, in Patent Document 1, a first agent containing a reducing agent such as thioglycolic acid and an alkali agent such as ammonia, and an oxidizing agent such as bromate are contained, and the pH is 4.5 or more and 8.0 or less. It is proposed to impart a wave shape to the hair by a permanent wave treatment using the second agent composed of the oxidizing agent composition of Further, according to Patent Document 1, it is described that the reducing agent in the first agent cleaves the disulfide bond of the hair and the oxidizing agent in the second agent reforms the disulfide bond in the hair.

However, when the disulfide bond is re-formed with an oxidizing agent, the cysteine residue in the hair is oxidized by the oxidizing agent, and cystic acid (also referred to as cysteic acid) is easily generated. The cystic acid tends to reduce the feel of the hair, such as finger passage.

JP, 2015-129198, A

The present invention has been made in view of the above points, and an object of the present invention is to cut a disulfide bond in hair at the time of treatment without further reforming the disulfide bond, and to permanently wave the hair. Another object of the present invention is to provide a hair treatment agent capable of straightening hair and a hair treatment method.

A hair treatment agent according to one aspect of the present invention is a hair treatment agent for applying permanent wave or straightening to hair, which comprises water, a first agent containing a basic amino acid, and water. And a second agent containing an organic acid.

In the hair treatment agent according to one aspect of the present invention, it is preferable that the first agent does not contain a reducing agent and the second agent does not contain an oxidizing agent.

In the hair treatment agent according to one aspect of the present invention, it is preferable that in the first agent, the water contains alkaline electrolyzed water.

A hair treatment method according to one aspect of the present invention is a method of applying a permanent wave or curly straightening to hair using the hair treatment agent, comprising applying the first agent to the hair, and Treating the hair with an agent and applying a second agent to the hair after treatment with the first agent.

In the hair treatment method according to one aspect of the present invention, it is preferable that the hair is heated using a promoter after application of the first agent and before application of the second agent.

According to the present invention, a permanent wave or curly straightening can be applied to the hair without breaking the disulfide bond in the hair during the treatment and without reforming the disulfide bond.

FIG. 1 is a photograph showing a state in which a black hair bundle subjected to permanent wave was hung in each of Examples 10 to 11 and 15 to 16 and Comparative Examples 3 to 5. FIG. 2 is a photograph showing the results of Example 24 and Comparative Example 7. FIG. 3 is photographs showing the hair before and after straightening the hair in Example 25 and Comparative Example 8.

First, a hair treatment agent according to one embodiment will be described.

(Hair treatment agent)
The hair treatment agent according to this embodiment is a treatment agent for performing permanent wave or straightening of hair, and includes a first agent and a second agent. Since the first agent and the second agent are independent, the hair treatment agent is a multi-agent treatment agent. The second agent is used after applying the first agent to hair.

The first agent contains water and a basic amino acid. The second agent contains water and an organic acid.

By including such a first agent and a second agent in the hair treatment agent, permanent wave or curly straightening can be applied to the hair. Specifically, the permanent wave or curly straightening can be applied to the hair without breaking the disulfide bond in the hair with the first agent and without reforming the disulfide bond with the second agent.

Examples of water in the first agent include alkaline electrolyzed water, ion-exchanged water, distilled water, reverse osmosis water, electronic water, and ultrapure water. You may combine 1 or 2 or more types among these. In this case, the water preferably contains alkaline electrolyzed water, and the water is more preferably alkaline electrolyzed water.

Reverse osmosis water is treated water in which water in the raw water is passed through the reverse osmosis membrane by applying a pressure larger than the osmotic pressure to raw water such as tap water. An arbitrary reverse osmosis membrane can be adopted in producing this reverse osmosis water. With electronic water, by electrostatic induction using Bincho charcoal, etc., water molecules that compose water such as tap water are vibrated to reduce the aggregate (water cluster) in which water molecules are linked by hydrogen bonds, and It is treated water with an increased concentration of negative ions in water.

Ultrapure water is treated water in which impurities such as organic carbon, fine particles, viable bacteria, and silica components are removed until the specific resistance becomes about 18 MΩcm at a water temperature of 25° C., for example.

When the water contains alkaline electrolyzed water, the alkaline electrolyzed water can reduce hydrogen ions in ion-treated water, distilled water, reverse osmosis water, and primary treated water such as ultrapure water to generate hydrogen gas. The secondary treated water has an increased hydroxide ion concentration.

When producing alkaline electrolyzed water, for example, an electrolyzed water generator conforming to JIS T 2004 or a reducing ceramic ball can be adopted.

When using the reducing ceramic balls, activated carbon and tap water are mixed, and then the mixture is left to prepare pretreated water. When preparing the pretreated water, the standing time of the mixture is, for example, 10 hours or more and 20 hours or less. The amount of activated carbon is, for example, in the range of 100 g or more and 300 g or less with respect to 1 L of tap water. Next, diatomaceous earth and filter paper are used to separate the activated carbon from the pretreated water to prepare primary treated water. By circulating this primary treated water in an apparatus equipped with a column filled with reducing ceramic balls, by generating hydrogen gas by reducing hydrogen ions in the primary treated water with the reducing ceramic balls during circulation, Secondary treated water having an increased hydroxide ion concentration is produced. The circulation time of the primary treated water is, for example, within a range of 100 hours or more and 150 hours.

The pH of the alkaline electrolyzed water is preferably in the range of 7.5 or more and 12.5 or less. Further, the alkaline electrolyzed water does not contain an alkaline agent such as ammonia, monoethanolamine, caustic or the like. That is, the first agent does not contain an alkaline agent. In this case, since the alkaline agent does not remain in the treated hair, it is difficult to keep the cuticle open in the hair that has been re-dried after the treatment. Accordingly, it is possible to prevent the hair from having a resistance feeling such as squeaking and dryness.

Proteins in hair contain basic amino acids as some of the amino acid residues. Therefore, even if the first agent contains a basic amino acid, it is considered that the basic amino acid does not contribute to the feeling of resistance. Therefore, basic amino acids are not included in the alkaline agent.

Basic amino acids include, for example, ornithine, lysine, arginine, histidine, and tryptophan. The 1st agent can contain 1 type(s) or 2 or more types of components among these components. Particularly, the first agent preferably contains arginine.

The content of the basic amino acid is preferably in the range of 1 part by mass or more and less than 25 parts by mass with respect to the total amount of the first agent. When the content of the basic amino acid is 25 parts by mass or more, the basic amino acid easily precipitates in the first agent. The content of the basic amino acid is more preferably 20 parts by mass or less, and particularly preferably 10 parts by mass or less. Further, the content of the basic amino acid may be 8 parts by mass or more.

The first agent does not contain a reducing agent. In this case, the first agent can soften the hair even if the first agent does not contain the reducing agent. Specifically, the first agent can soften the hair without breaking the disulfide bond in the hair. In general permanent treatment, cysteine may be used as a reducing agent in order to cleave a disulfide bond. Therefore, the first agent does not contain cysteine.

When the first agent swells and softens the hair, when the hair is given a shape, the tissue in the hair such as cortex moves in the hair according to the shape without breaking the disulfide bond. It will be easier. In particular, when the first agent contains a basic amino acid, the water content of the hair coated with the first agent can be increased. Further, since water and basic amino acids permeate the hair, the inside of the hair becomes basic.

The first agent can contain any cosmetic excipient as long as it can swell and soften the hair by its application. Examples of this cosmetic excipient include nonionic surfactants, cationic surfactants, anionic surfactants, fatty acid esters, fats and oils, silicones, water-soluble polymers, waxes, higher alcohols, polyhydric alcohols, proteins, chelating agents. , Anti-inflammatory agents, preservatives, and fragrances.

Examples of nonionic surfactants include polyoxyalkylene alkyl ethers, alkylolamides, ester compounds of higher fatty acids and polyhydric alcohols, and polyoxyethylene (POE) fatty acid esters.

As the cationic surfactant, for example, lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, behenyl trimethyl ammonium methyl sulfate, behenyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl bromide. Ammonium, stearyl trimethyl ammonium saccharin, and cetyl trimethyl ammonium saccharin.

Examples of anionic surfactants include higher alcohol sulfate ester salts, N-acylglutamates, and higher fatty acid amide sulfonates.

Examples of the fatty acid ester include diisopropyl adipate, diisobutyl adipate, dioctyl adipate, 2-hexyldecyl adipate, diisostearyl adipate, isopropyl myristate, cetyl octanoate, cetyl isooctanoate, isononyl isononanoate, isonononane. Isodecyl acid, Isotridecyl isononanoate, Diisopropyl sebacate, Octyldodecyl myristate, Isopropyl palmitate, Butyl stearate, Hexyl laurate, Decyl oleate, Hexyldecyl dimethyloctanoate, Isotridecyl myristate, Isostearyl myristate, Palmitate 2 -Ethylhexyl, octyldodecyl ricinoleate, lauryl lactate, myristyl lactate, octyldodecyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipenta Erythritol fatty acid ester, N-alkyl glycol monoisostearate, cetyl caprate, glyceryl tricaprylate, neopentyl glycol dicaprate, diisostearyl malate, diethyl sebacate, diethoxyethyl succinate, di-2-ethylhexyl succinate, and The lanolin fatty acid isostearyl is mentioned.

Examples of fats and oils include olive oil, rosehip oil, camellia oil, macadamia nut oil, almond oil, tea seed oil, sasanqua oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, peanut oil, rapeseed oil. , Rice bran oil, rice germ oil, wheat germ oil, coix seed oil, grape seed oil, avocado oil, carrot oil, macadamia nut oil, castor oil, linseed oil, persic oil, kukui nut oil, evening primrose oil, high oleic sunflower oil, Meadow home oil, hazelnut oil, pistachio seed oil, and jojoba oil are included.

Examples of silicones include dimethicone, phenyldimethicone, amodimethicone, aminoethylaminopropylmethicone/dimethicone copolymer, dimethiconol, decamethylcyclopentasiloxane, and PCA dimethicone.

Examples of the water-soluble polymer include plant polymers such as gum arabic, karaya gum, tragacanth gum, xanthan gum, carrageenan, pectin, agar, fucodine, and starch; microbial polymers such as dextran and pullulan; collagen, casein, and gelatin. Animal polymers such as carboxymethyl starch and starch derivative polymers such as methyl hydroxypropyl starch; Cellulose derivative polymers such as methyl cellulose, ethyl cellulose, nitrocellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, and hydroxypropyl methyl cellulose; Molecular horse placenta; and hyaluronic acid and its salts.

Examples of polyhydric alcohols include dihydric alcohols such as propylene glycol, dipropylene glycol, and polyethylene glycol; and trihydric alcohols such as glycerin.

Examples of the higher alcohols include linear saturated alcohols such as myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol; linear unsaturated alcohols such as oleyl alcohol; and hexyldecanol, octyldodecanol, isocetyl. Alcohols and branched saturated alcohols such as isostearyl alcohol are included.

When the 1st agent does not contain a cosmetic excipient, the 1st agent may contain only water and a basic amino acid.

In addition, the second agent contains water and an organic acid as described above.

Examples of water include tap water, ion-exchanged water, distilled water, reverse osmosis water, and ultrapure water. You may combine 1 or 2 or more types among these. The water in the second agent may be the same as the water in the first agent. When the first agent contains alkaline electrolyzed water, the water in the second agent is different from the water in the first agent. That is, the second agent does not contain alkaline electrolyzed water. This makes it difficult to neutralize the organic acid in the second agent with the alkaline electrolyzed water, and thus can keep the organic acid stable when not in use.

The organic acid is a component that acidifies the inside of the hair that has been made basic by the first agent. Examples of such organic acids include lactic acid, malonic acid, maleic acid, citric acid, malic acid, tartaric acid, and succinic acid. Of these components, the organic acid may contain one or more components. The organic acid preferably contains citric acid, and more preferably the organic acid is citric acid.

Since the second agent contains the organic acid, the hair swollen with the first agent can be contracted by the organic acid. This makes it easier to maintain this shape by applying a shape to the hair to which the first agent has been applied and then applying the second agent to the hair.

The content of the organic acid is preferably in the range of 3 parts by mass or more and 25 parts by mass or less with respect to the total amount of the second agent. When the content of the organic acid is 3 parts by mass or more, the hair can be contracted. Further, when the content of the organic acid is 25 parts by mass or less, the inside of the hair after the treatment can be made acidic and the hair can be made hard.

Moreover, the second agent does not contain an oxidizing agent such as hydrogen peroxide or bromate. As described above, even if the second agent does not contain an oxidizing agent, the hair swollen with the first agent can be contracted with the second agent.

The second agent can contain any cosmetic excipient as long as it can shrink the hair by its application. This cosmetic excipient may be the same as or different from the cosmetic excipient of the first part. Examples of cosmetic excipients that can be contained in the second agent include nonionic surfactants, cationic surfactants, anionic surfactants, fatty acid esters, oils and fats, silicones, water-soluble polymers, waxes, higher alcohols, and polyhydric alcohols. , Proteins, chelating agents, anti-inflammatory agents, preservatives, and fragrances.

Moreover, when the second agent does not contain a cosmetic excipient, the second agent may contain only water and an organic acid.

Next, a hair treatment method according to one embodiment will be described.

(Hair treatment method)
The hair treatment method according to this embodiment is a method of applying permanent wave or straightening to hair using the above-mentioned hair treatment agent. Therefore, the present embodiment can refer to the detailed description of the hair treatment agent.

The hair treatment method includes applying the first agent to the hair, treating the hair with the first agent, rinsing the first agent, and applying the second agent to the hair from which the first agent has been washed away. And, including.

When applying the first agent to hair, an arbitrary hairdressing and beauty applicator such as a brush and an applicator can be adopted. When the hairdressing and beauty applicator is a brush, the first agent can be applied to the hair with the brush and the applied first agent can be spread with a comb. Further, when the hairdressing and beauty applicator is an applicator, the first agent in the applicator can be applied to hair, and the applied first agent can be spread with a comb. However, as long as the first agent can be spread, it is not limited to the aspect using the comb. The first agent applied to the hair can be spread by being sandwiched between fingers, for example.

Here, when straightening the hair, the hair coated with the first agent is sandwiched between film materials such as a metal film and a resin film and allowed to stand or left to stand on the film material. .. When applying permanent wave to the hair, the hair may be wound around the perm rod before applying the first agent, or the hair may be wound around the perm rod after applying the first agent. When applying the first agent after winding the hair around the rod, the first agent is applied to the hair while applying the first agent with the applicator. The hair thus wound around the rod and coated with the first agent is left in this state. The diameter of the rod can be arbitrarily selected according to the shape of the permanent wave.

After application of the first agent, the hair to which the first agent has been applied may be treated at room temperature, or may be treated by heating using a promoter. In this case, the application of the first agent and the treatment with the first agent are continuously performed. This makes it possible to swell and soften the hair with the first agent and to give the hair a shape. Further, since the application of the first agent and the treatment with the first agent are continuously performed, the treatment time of the first agent is the time from the start of application of the first agent until the hair is sufficiently softened. The treatment time of the first agent can be appropriately adjusted according to the softened state of hair. The hair treatment time is, for example, in the range of 3 minutes or more and 20 minutes or less.

As a method of heating the hair, for example, in the case of applying permanent wave to the hair, the hair wound around the rod is heated by using a promoter such as a dry heater, a steam heater, and a digital perm machine. Of these promoters, it is preferable to use a digital perm machine. Since the digital perm machine heats the rod at the set temperature, it is easy to obtain a sufficient permanent wave. Further, when straightening the hair, the hair is heated using a promoter such as a dry heater, a steam heater, and a curling iron. Among such promoters, the curling iron is a curling iron that is used in known hair straightening. Also, when using an accelerator to straighten hair, the hair is not wrapped around the rod. In such straightening, the hair is heated at least twice. In the first heating (first heating), the hair is heated by the heating device while the first agent remains attached. In straightening hair, the first agent for hair is not washed off with running water before the first heating.

During the treatment of the first agent, the heating temperature of the hair can be appropriately adjusted according to the softened state of the hair. The heating temperature of the hair is, for example, in the range of 60° C. or higher and 150° C. or lower. The heating temperature of the permanent wave is, for example, 60° C. or higher and 100° C. or lower. The heating temperature of the first heating in straightening hair is, for example, in the range of 60°C or higher and 150°C or lower. The heating time of the first heating is, for example, in the range of 1 minute or more and 20 minutes or less.

After the treatment of the first agent, the first agent is washed off with running water. For example, when applying a permanent wave to hair, the first agent is washed off while the hair is wrapped around the perm rod. In this case, the first agent is washed off by the same procedure as in the known permanent wave. After washing the hair, the hair is dried with a known hair dryer. Further, in the case of straightening hair, after the first heating, the first agent for hair is washed off with running water (running water rinse). After rinsing with running water, remove water adhering to hair roughly with a towel. Then, the hair is heated again with a curling iron (second heating). In such straightening of the hair, before the second heating, the hair to which the water is attached may be roughly dried (half-dried) by a rinsing with running water. The heating temperature of the second heating can be appropriately adjusted according to the degree of straightening of the hair. The heating temperature of the second heating is, for example, in the range of 100° C. or higher and 200° C. or lower. The heating temperature of the second heating is arbitrarily set according to the degree, amount, length, etc. of the curly hair. Therefore, in the present embodiment, the heating temperature of the second heating is not particularly limited.

Next, the second agent is applied to the heated hair. Then, the second agent is left as it is. Thereby, the hair swollen with the first agent can be contracted by the organic acid in the second agent, so that the shape imparted during heating can be easily maintained. In applying the second agent, a brush, an applicator, or any other cosmetic applicator can be used. For example, when applying permanent wave to the hair, the second agent is applied to the hair with an applicator while the hair is wound around the rod. Then, the state in which the second agent is applied is left to stand. When the hair is straightened, the second agent is applied to the hair with a hairdressing and beauty applicator, and the applied second agent is spread with a comb or the like. In this way, the state in which the second agent is applied to the hair is left.

The standing time of the hair coated with the second agent is not particularly limited and can be appropriately adjusted according to the hardness of the hair. The leaving time of hair can be adjusted within the range of 5 minutes or more and 15 minutes or less.

After the treatment of the second agent, the hair is washed by the same procedure as in the known permanent wave etc. to wash away the second agent. After washing the hair, the hair is dried with a known hair dryer.

Further, in the hair treatment method according to the present embodiment, a known permanent wave pretreatment agent may be used before the application of the first agent, and a known permanent wave posttreatment agent may be used after washing the second agent. It may be used.

Hereinafter, the present invention will be specifically described with reference to examples. However, this example does not limit the scope of the present invention.

<Preparation of alkaline electrolyzed water>
100 g of activated carbon was prepared for 1 L of tap water. Then, activated carbon and tap water were mixed in a container having a volume of 3 L, and then this mixture was left in the container for 10 hours to prepare pretreated water. From this pretreated water, diatomaceous earth and activated carbon were filtered off with a filter paper to prepare primary treated water. Then, the primary treated water was circulated for 120 hours in an apparatus equipped with a column (made by Com Lab Co., Ltd.) filled with reducing ceramic balls to adjust the alkaline electrolyzed water having a pH of 10. Using this alkaline electrolyzed water, the first agent was prepared by the following procedure.

<Preparation of the first agent>
{First agent 1-A}
97 parts by mass of alkaline electrolyzed water as water and 3 parts by mass of arginine as basic amino acid were weighed. Then, alkaline electrolyzed water and arginine were mixed and arginine was dissolved in the alkaline electrolyzed water. This solution was designated as First Agent 1-A.

{First agent 1-B}
95 parts by mass of alkaline electrolyzed water as water and 5 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-B.

{First agent 1-C}
92 parts by mass of alkaline electrolyzed water as water and 8 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-C.

{First agent 1-D}
90 parts by mass of alkaline electrolyzed water as water and 10 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-D.

{First agent 1-E}
85 parts by mass of alkaline electrolyzed water as water and 15 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-E.

{First agent 1-F}
80 parts by mass of alkaline electrolyzed water as water and 20 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-F.

{First agent 1-G}
90 parts by mass of alkaline electrolyzed water as water and 10 parts by mass of lysine as basic amino acid were weighed. Then, alkaline electrolyzed water and lysine were mixed, and lysine was dissolved in the alkaline electrolyzed water. This solution was designated as First Agent 1-G.

{First agent 1-H}
80 parts by mass of alkaline electrolyzed water as water and 20 parts by mass of lysine as basic amino acid were weighed. Thereafter, lysine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-G. This solution was designated as First Agent 1-H.

{First agent 1-I}
90 parts by mass of alkaline electrolyzed water as water and 10 parts by mass of ornithine as basic amino acid were weighed. Then, the alkaline electrolyzed water and ornithine were mixed, and the ornithine was dissolved in the alkaline electrolyzed water. This solution was designated as First Agent 1-I.

{First agent 1-J}
As water, 100 parts by mass of alkaline electrolyzed water was weighed. This alkaline electrolyzed water was designated as the first agent 1-J.

{First agent 1-K}
75 parts by mass of alkaline electrolyzed water as water and 25 parts by mass of arginine as basic amino acid were weighed. Thereafter, arginine was dissolved in alkaline electrolyzed water in the same manner as in the first agent 1-A. This solution was designated as First Agent 1-K.

{First agent 1-L}
The first agent containing thioglycolic acid (one agent of Venezel Wave Perm Solution manufactured by Dariya Co., Ltd.) was used as the first agent 1-L.

{First agent 1-M}
85 parts by mass of alkaline electrolyzed water as water, 10 parts by mass of arginine as basic amino acid, and 5 parts by mass of fucodine were weighed. Then, alkaline electrolyzed water, arginine, and fucodine were mixed, and arginine and fucodine were dissolved in the alkaline electrolyzed water. This solution was designated as First Agent 1-M.

<Preparation of second agent>
{Second agent 2-A}
75 parts by mass of tap water as water and 25 parts by mass of citric acid as an organic acid were weighed. Then, tap water and citric acid were mixed, and the citric acid was dissolved in tap water. This solution was designated as the second agent 2-A.

{Second agent 2-B}
99 parts by mass of tap water as water and 1 part by mass of citric acid as an organic acid were weighed. After this, citric acid was dissolved in tap water in the same manner as the second agent 2-A. This solution was designated as the second agent 2-B.

{Second agent 2-C}
The second agent containing hydrogen peroxide (two agents of Venezel Wave Perm Solution manufactured by Dariya Co., Ltd.) was used as the second agent 2-C.

{Second agent 2-D}
85 parts by mass of tap water as water, 10 parts by mass of citric acid as an organic acid, and 5 parts by mass of silk powder (Kaya silk powder 100 manufactured by Kaetsu Sogo Shinko Co., Ltd.) were weighed. And tap water, citric acid, and silk powder were mixed, and this mixed liquid was made into the 2nd agent 2-D.

<hair bundle>
In each of the examples and comparative examples, the following human hair bundle was used for evaluation.
・Black hair bundle: total length 21 cm
・Gray hair bundle: 30% white hair, total length 16 cm
・Medium bleach hair bundle: total length 21 cm
・Hybrid hair bundle: total length 16 cm.

[Examples 1-5 and Comparative Examples 1-2]
Examples 1-5 and Comparative Examples 1-2 were performed using the above-mentioned 1st agent and 2nd agent.

<Hair treatment>
[Permanent wave]
[Examples 1-5 and Comparative Examples 1-2]
The first agent was applied to the black hair bundle, and then the hair applied with the first agent was wound around a perm rod (Flask Co., diameter 12 mm). The perm rod was connected to a digital perm machine (made by Flask Co.), and the heating temperature was set to 60°C. Then, the hair was heated by heating the perm rod at this heating temperature. After that, heating was stopped 15 minutes after the application of the first agent was started, and the first agent was washed off with running water while the hair was wound around the perm rod. After washing off the first agent, the water adhering to the hair was roughly removed with a towel while being wound around the perm rod. After towel drying, the second agent was applied to the hair in a state of being wrapped around the perm rod and left for 15 minutes. After the treatment with the second agent, the hair was removed from the perm rod and the second agent was rinsed with running water. After washing off the second agent, the hair was dried with a hair dryer.

[Evaluation]
The following evaluation was performed in each of Examples 1 to 5 and Comparative Examples 1 and 2. However, since the basic amino acid was precipitated in the first agent of Comparative Example 2, the first agent of Comparative Example 2 was not used in the following evaluation.

<Swelling rate of hair>
First, the weight of an unused black hair bundle was measured. After this measurement, hair was applied with the first agent and heated in the same procedure as the above hair treatment. Then, the first agent was washed off with running water, and the hair was removed from the perm rod. Then, the water adhering to the hair was sufficiently removed with a towel until the treated portion of the hair was not organized. Then, the weight of the hair bundle after towel drying was measured, and the swelling ratio of the hair with the first agent was calculated based on the following formula (1).

Swelling rate (%)=(weight of hair bundle after treatment with first agent/weight of unused hair bundle)×100 (1).

[Examples 6 to 14 and Comparative Examples 3 to 4]
Each of Examples 6 to 14 and Comparative Examples 3 to 4 was performed to evaluate the permanent wave for the black hair bundle, the white hair bundle, the medium bleach hair bundle, and the hybrid hair bundle. The results of the permanent wave are shown in Table 2 below.

<Hair curlyness>
First, the total length of an unused hair bundle was measured. After this measurement, the hair bundle to which the permanent wave was applied was hung down in the same procedure as the above hair treatment. In this state, the dimension between the upper end and the lower end of the hair bundle was measured. Then, the hair shrinkage ratio by the permanent wave was calculated based on the following formula (2).

Hair shrinkage ratio (%)={(unused hair bundle size)-(hair bundle size after permanent wave treatment)}/(unused hair bundle size)×100 (2).

[Examples 15 to 16 and Comparative Example 5]
Each of Examples 15 to 16 and Comparative Example 5 was carried out to evaluate the permanent wave for the black hair bundle. The results of the permanent wave are shown in Table 3 below.

[Permanent wave]
The first agent was applied to the black hair bundle, and then the hair to which the first agent was applied was wrapped around a perm rod (diameter 12 mm). In this state, the hair was treated with the first agent for 15 minutes at room temperature. After that, the first agent was washed off with running water while the hair was wrapped around the perm rod. After washing off the first agent, the water adhering to the hair was roughly removed with a towel while being wound around the perm rod. After towel drying, the second agent was applied to the hair in a state of being wrapped around the perm rod and left for 15 minutes. After the treatment with the second agent, the hair was removed from the perm rod and the second agent was rinsed with running water. After washing off the second agent, the hair was dried with a hair dryer.

<Hair curlyness>
First, the total length of an unused hair bundle was measured. After this measurement, the hair bundle to which the permanent wave was applied was hung down. In this state, the dimension between the upper end and the lower end of the hair bundle was measured. Then, the curl rate by the permanent wave was calculated based on the above formula (2).

[Examples 17 to 22]
Each of Examples 17 to 22 was performed to evaluate the permanent wave on the black hair tresses and the medium bleach hair tresses. The results of the permanent wave are shown in Table 4 below.

[Permanent wave]
Hair treatment by the same procedure as in Example 9 except that the first agent was applied to the black hair bundle and the medium bleach hair bundle and the treatment time of the hair coated with the first agent was changed to the time shown in Table 4 below. I went.

<Hair curlyness>
The curlyness rate was calculated in the same manner as in Example 1 except that a black hair bundle and a medium bleach hair bundle were used as the hair bundle.

[Example 23 and Comparative Example 6]
Each of Example 23 and Comparative Example 6 was performed to evaluate the relationship between the degree of permanent wave and the number of shampoos for the black hair bundle and the medium bleach hair bundle. The evaluation results are shown in Table 5 below.

[Permanent wave]
Hair treatment was carried out in the same procedure as in Example 23 and in Comparative example 6 except that a black hair bundle and a medium bleach hair bundle were used. Here, the hair immediately after being rinsed with the second agent and then dried with a hair dryer was used as the hair subjected to 0 shampoo treatment.

<Shampoo treatment>
The hair bundle after the hair treatment was washed with a shampoo agent, and then the shampoo agent was rinsed with running water. After running, the hair was dried with a hair dryer. With the above procedure as one time, shampoo treatment was applied to the hair bundle after the hair treatment, as many times as shown in Table 5 below.

<Hair curlyness>
First, the total length of an unused hair bundle was measured. After this measurement, the hair bundle that had been shampooed after the hair treatment and each time was hung down. In this state, the dimension between the upper end and the lower end of the hair bundle was measured. Then, the hair contraction rate of the hair that had been shampooed after the hair treatment was calculated based on the following formula (3).

Shrinkage rate (%)={(Unused hair bundle size)-(Hair bundle size after shampoo treatment)}/(Unused hair bundle size)×100 (3).

[Example 24 and Comparative Example 7]
The hair of a beauty practice wig (Okamoto Shokai Co., Ltd.; AMERI SP-e) was divided into two blocks when viewed from the front of the wig. Then, in Example 24, the first agent 1-D and the second agent 2-A were applied to the hair of one block, and a permanent wave was applied in the same procedure as in Example 9. Further, in Comparative Example 7, the first agent 1-L and the second agent 2-C were applied to the other hair, and a permanent wave was applied in the same procedure as in Comparative Example 5. The hair to which the permanent wave is applied in Example 24 and Comparative Example 7 is shown in FIG.

[Hair straightening]
<Creating hair>
The first agent 1-L was applied to the black hair bundle, and then the hair coated with the first agent 1-L was wrapped around a perm rod (Flask Co., diameter 12 mm). The perm rod was connected to a digital perm machine (made by Flask Co.), and the heating temperature was set to 60°C. Then, the hair was heated by heating the perm rod at this heating temperature. Then, heating was stopped 15 minutes after the application of the first agent 1-L was started, and the first agent 1-L was washed off with running water in a state where the hair was wrapped around the perm rod. After the first agent 1-L was washed off, the water adhering to the hair was roughly removed with a towel while being wound around the perm rod. After towel drying, the second agent 2-C was applied to the hair in a state of being wrapped around the perm rod and left for 10 minutes. After the treatment with the second agent 2-C, the hair was removed from the perm rod and the second agent 2-C was rinsed with running water. After washing away the second agent 2-C, the hair was dried with a hair dryer. The hair thus treated was curly hair.

[Example 25]
The first agent 1-M was applied to the curly hair on the film material. After application, the curly hair with the first agent 1-M still attached was heated with a dry heater at 70° C. for 3 minutes. Then, the first agent 1-M after heating was rinsed with running water. After rinsing with running water, the water adhering to the hair treated with the first agent 1-M was roughly removed with a towel. Then, the hair was reheated with a curling iron set to 180°C. At this time, the hair was sandwiched with a curling iron, and the curling iron was slid to reheat the hair while stretching the curly hair. After reheating, the second agent 2-D was applied to the hair, and the treatment with the second agent 2-D was performed for 10 minutes. After the treatment of the second agent 2-D, the second agent 2-D was washed off with running water. After washing away the second agent 2-D, the hair was dried with a hair dryer. The result is shown in FIG.

[Comparative Example 8]
Curly hair before applying the first agent 1-M in Example 25 was designated as Comparative Example 8, and the results are shown in FIG.

From the results of Examples 1 to 24 and Comparative Examples 1 to 7 described above, beneficial results are obtained by using the basic amino acid as the active ingredient of the first agent and the organic acid as the active ingredient of the second agent. I found out. Particularly in Examples 1 to 23, since the first agent does not contain a reducing agent and the second agent does not contain an oxidizing agent, the disulfide bond in the hair is not cleaved during the treatment with the first agent, Furthermore, it was possible to obtain permanent waved hair without reforming disulfide bonds during the treatment with the second agent. Further, from the results of Example 24 and Comparative Example 8, as in Examples 1 to 24, even if the first agent does not contain a reducing agent and the second agent does not contain an oxidizing agent, curly hair is generated. It was possible to obtain straightened and straightened hair.

Claims (5)

A hair treatment agent for applying a permanent wave or curly straightening to hair,
A first agent containing water and a basic amino acid,
A second agent containing water and an organic acid,
A hair treatment composition containing. The hair treatment agent according to claim 1, wherein the first agent does not contain a reducing agent and the second agent does not contain an oxidizing agent. The hair treatment agent according to claim 1 or 2, wherein the water in the first agent contains alkaline electrolyzed water. A method for applying permanent wave or straightening to hair using the hair treatment agent according to claim 1.
Applying the first agent to hair,
Treating the hair with the first agent,
Applying the second agent to the hair after the treatment of the first agent;
A method for treating hair, which comprises: The hair treatment method according to claim 4, wherein the hair is heated using a promoter after application of the first agent and before application of the second agent.