CN117257697A - Composition for hair deformation treatment and hair deformation treatment method - Google Patents

Abstract

The present invention addresses the problem of providing a novel hair styling composition that can more easily deform hair, and a hair styling method using the composition. The composition for hair deformation treatment of the present disclosure contains a saponin, and the hair deformation treatment method of the present disclosure comprises: such a composition is applied to hair, and the hair is deformed by applying a heat treatment to the hair.

Description

Composition for hair deformation treatment and hair deformation treatment method

Technical Field

The present disclosure relates to a hair deformation treatment composition and a hair deformation treatment method.

Background

In recent years, hair compositions for protecting or repairing hair, methods for deforming hair using appliances such as hair curlers, and the like have been developed.

Patent document 1 discloses a hair cosmetic for thermal damage care, which contains a diester of ethoxydiglycol and cyclohexanedicarboxylic acid, and a dimethicone copolyol having a flash point of 180 ℃ or higher or a use temperature of a heat generating hair care appliance.

Patent document 2 discloses a hair thermal protective agent comprising at least one selected from glutamic acid and trimethylglycine, which is applied before heat treatment of hair at a temperature of 80 ℃ or higher.

Patent document 3 discloses a hair treatment method comprising the steps of: (1) A step of applying a hair treatment agent to hair, wherein the hair treatment agent contains (a) 10 to 25 mass% of glyoxylic acid and (b) 0.05 to 3 mass% of a guanidine salt and/or urea and has a pH in the range of 1.0 to 2.5; (2) a step of placing hair; (3) a step of washing hair with water; (4) a step of drying the hair; and (5) a step of straightening hair with a hair styling iron.

Patent document 4 discloses an O/W emulsion for a stable cosmetic material, which comprises an aqueous phase, an oil phase, an emulsifier and a stabilizer, wherein the emulsifier is lecithin or saponin as a natural emulsifier, and the stabilizer is aloe juice.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2014-015440

Patent document 2: japanese patent laid-open publication No. 2019-006694

Patent document 3: japanese patent laid-open publication 2016-017069

Patent document 4: japanese patent laid-open No. 57-042326

Disclosure of Invention

Problems to be solved by the invention

For example, in cosmetic treatments such as styling, wave waving, and straight waving, techniques for applying waves to hair or straightening hair and deforming hair using a hair waving device are known.

However, such a technique requires skill, or a hair iron having a height Wen Zhengfa such as a hair iron is excessively applied to hair in order to obtain a target hair style, and as a result, the hair may be damaged. Therefore, a technique for deforming hair more easily is desired.

Accordingly, the subject matter of the present disclosure is to provide a novel hair deformation treatment composition that can deform hair more easily, and a hair deformation treatment method using the composition.

Means for solving the problems

Scheme 1

A hair deformation treatment composition comprising a saponin.

Scheme 2

The composition according to claim 1, which comprises 0.001% by mass or more of the above-mentioned saponin.

Scheme 3

The composition according to claim 1 or 2, wherein the hair deformation treatment comprises a heat treatment applying heat to the hair surface at a temperature exceeding 70 ℃.

Scheme 4

A hair deformation treatment method, comprising: a composition for hair deformation treatment comprising a saponin is applied to hair, and the hair is subjected to a heat treatment to deform the hair.

Scheme 5

According to the method of claim 4, the composition for hair deformation treatment contains 0.001% by mass or more of the saponin.

Scheme 6

The method according to claim 4 or 5, wherein the heat treatment is a treatment of applying heat at a temperature exceeding 70 ℃ to the hair surface.

Scheme 7

The method according to any one of claims 4 to 6, wherein the heating treatment is a hair iron treatment or a heat treatment.

Scheme 8

The method according to any one of claims 4 to 7, wherein the hair is deformed to impart curl to the hair.

Scheme 9

The method according to any one of claims 4 to 7, wherein the hair is deformed to correct the frizzy hair.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present disclosure, a novel hair styling composition capable of more easily styling hair and a hair styling method using the composition can be provided.

Drawings

Fig. 1 is a photograph showing the degree of hair deformation when the content of soapberry extract (saponin content 20%) in the hair deformation treatment composition was changed.

Fig. 2 is a photograph showing the degree of deformation of hair after hair deformation treatment with the hair deformation treatment composition, and then shampoo treatment was performed 1 or 10 times.

FIG. 3 is a photograph showing the degree of deformation of hair when a high-temperature hair styling iron is applied to hair to which a composition for hair deformation treatment is applied at various set temperatures.

Fig. 4 is a photograph showing the degree of deformation (correction) of hair after hair deformation treatment (hair correction treatment) by applying a hair deformation treatment composition to hair in a curled state, followed by shampoo treatment and drying by a dryer.

FIG. 5 is a photograph showing the degree of deformation of hair subjected to a heat treatment using a composition containing no Sapindus extract (saponin content: 20%) and hair subjected to a heat treatment using a composition containing Sapindus extract (right: example 22).

Detailed Description

Hereinafter, embodiments of the present disclosure will be described in detail. The present disclosure is not limited to the following embodiments, and can be implemented by various modifications within the scope of the gist of the invention.

The hair deformation treatment composition (sometimes referred to simply as "composition") of the present disclosure comprises a saponin.

Although not limited by the principle, the principle of action of the hair deformation treatment composition of the present disclosure to deform hair is considered as follows.

The present inventors have found that saponins contained in the composition are effective ingredients for deforming hair.

It is known that, inside the hair, there are 4 bonds of amide bonds (peptide bonds), cystine bonds, ionic bonds, and hydrogen bonds in order of bond strength from high to low. It is known that the cystine bond therein can be cleaved by using a reducing agent, and furthermore, it is known that the amide bond is a more powerful bond which is not cleaved by the reducing agent.

As also described in patent document 4, the saponin contained in the composition of the present disclosure is a component known as a natural emulsifier or surfactant, and does not have a strong action of cleaving a cystine bond such as a reducing agent. However, the composition of the present disclosure is more capable of deforming hair than hair to which the composition is not applied if the hair is heat-treated with a hair iron or the like at a height Wen Zhengfa after such composition is applied to the hair. Therefore, the saponin contained in the composition of the present disclosure is thought to penetrate into the hair and act to cut off ionic bonds and/or hydrogen bonds in the hair when subjected to heat from a hair iron or the like at high Wen Zhengfa, and thus is thought to be more capable of deforming the hair.

Composition for treating hair deformation

Saponin

The hair deformation treatment composition of the present disclosure comprises a saponin. In the present disclosure, the term "hair deformation treatment" refers to a treatment of deforming hair while heat-treating the hair after applying such a composition to the hair. The "heat treatment" is not particularly limited as long as it is a treatment of applying heat to hair, and examples thereof include a heat treatment of applying heat at a temperature exceeding 70 ℃ to the hair surface. The "treatment for deforming hair" is not particularly limited as long as it is a treatment for deforming hair, and includes, for example, a treatment for straightening hair in addition to a treatment for imparting curls such as waves to hair. In addition, the term "hair" in the present disclosure is the same as "body hair" and includes any hair in the body. Specifically, examples of the hair include hair, eyelashes, eyebrows, and beards.

The mixing amount of the saponin is not particularly limited, and may be, for example, 0.01 mass% or more, 0.05 mass% or more, 0.10 mass% or more, 0.20 mass% or more, 0.30 mass% or more, 0.40 mass% or more, 0.50 mass% or more, 0.60 mass% or more, 0.70 mass% or more, 0.80 mass% or more, 0.90 mass% or more, or 1.0 mass% or more, with respect to the total amount of the composition. The upper limit of the blending amount is not particularly limited, and may be, for example, 4.0 mass% or less, 3.5 mass% or less, 3.0 mass% or less, 2.5 mass% or less, 2.0 mass% or less, 1.5 mass% or less, 1.0 mass% or less, less than 1.0 mass%, 0.9 mass% or less, or 0.8 mass% or less. In general, saponins are not commercially available as a single body with a purity of 100%, but are commercially available as a mixture containing saponins and components other than saponins. The values shown in fig. 1, 2 and 5 are the contents of soapberry extract (saponin content 20%) as a mixture containing saponins, which are mixed in the hair deformation treatment composition.

The saponins are not particularly limited, and examples thereof include triterpenoid saponins, steroid saponins, and steroid glycoside alkaloids (steroid glycoalkaloid) saponins. Such saponins may be used singly or in combination of two or more. Among them, triterpenoid saponins are preferable from the viewpoint of deformability of hair and the like.

(triterpenoid saponins)

Triterpenoid saponins may be obtained, for example, from extracts derived from plants. The plant containing triterpenoid saponin is not particularly limited, and examples thereof include soybean, luffa, red bean, kidney bean, spinach, beet, grape, platycodon root, licorice, senega, quillaja, soapberry, ginseng, tea seed, and locust. The triterpenoid saponins may be used singly or in combination of two or more. Among them, from the viewpoint of deformability of hair and the like, saponins derived from soapberry (sometimes also referred to as "soapberry") are preferable.

(steroid-based saponins)

Steroid saponins may also be obtained, for example, from extracts derived from plants. The plant containing the steroid saponin is not particularly limited, and examples thereof include plants of the family liliaceae, the family dioscoreaceae, the family anemarrhena, and the family ophiopogon. The steroid-based saponin may be used singly or in combination of two or more.

(steroidal glycoside alkaloid saponins)

Steroidal glycoside alkaloid saponins may also be obtained, for example, from extracts derived from plants. The plant containing the steroidal alkaloid saponin is not particularly limited, and examples thereof include tomato, potato, and plants of the Solanaceae family (for example, eggplant and capsicum). The steroidal glycoside alkaloid saponin may be used singly or in combination of two or more.

Arbitrary composition

The hair deformation treatment composition of the present disclosure can appropriately blend various components within a range that does not adversely affect the effects of the present invention. Examples of the various components include liquid oils and fats, solid oils and fats, waxes, higher fatty acids, rose-hip oils, oil components such as camellia seed oil, silicones, higher alcohols, other natural or synthetic surfactants (e.g., anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants), humectants, water-soluble polymers, thickeners, film formers such as organic siliconized polysaccharides, metal ion blocking agents, lower alcohols (e.g., ethanol), polyols (e.g., glycerin, 1, 3-butanediol, propylene glycol), various other extracts (e.g., royal jelly extract) other than the extract containing saponins, sugars, amino acids, organic amines, polymer emulsions, ultraviolet absorbers, pH adjusters, skin nutrients, water-soluble drugs, antioxidants, buffers, preservatives, antioxidative auxiliaries, spray agents, reducing agents, oxidizing agents, organic powders, perfumes, dyes, acid components, water components, solvents, pigments, and solvents which can be used in pharmaceuticals, quasi-drugs, cosmetics, and the like. Any one of the components may be used alone or in combination of two or more.

Dosage form

The formulation of the hair styling composition of the present disclosure is not particularly limited, and any formulation may be used as long as it can exert the effects of the present invention. Examples thereof include liquid, emulsion, cream, gel, mist, spray, aerosol, and mousse.

Usage form

The form of use of the hair deformation treatment composition of the present disclosure is not particularly limited, and for example, the composition may be used as a pretreatment agent for a treatment of deforming hair by applying heat to hair. Specific examples of such a use form include hair styling liquids, hair growth liquids, hair conditioners, shampoos, rinse-off hair conditioners, hair nurseries, hair oils, hair care agents, hair dyes, bleaching agents, styling agents, and hair waving agents. These modes of use may also function as a pretreatment agent for a treatment of deforming hair by applying heat to the hair. In addition, the present invention is not limited to such a specific use form, and may be used alone as a pretreatment agent for a treatment of deforming hair by applying heat to hair.

For example, the hair styling composition of the present disclosure can be used as a permanent wave agent or a pretreatment agent for permanent wave. The permanent wave agent is a hair treatment agent used for changing the shape of hair by a chemical reaction such as a reduction reaction or an oxidation reaction. Examples of the hair waving agent include a waving agent (for example, a hot-set waving agent) for waving hair, and a hair straightening agent for waving hair to be close to straight hair. In the case of using the composition for hair deformation treatment of the present disclosure as a hair waving agent, such a composition may be, for example, any one of a 1 st agent of a 1-agent hair waving agent, a 2 nd agent of a 2-agent hair waving agent mixed with a reducing agent, and a 2 nd agent of a 2-agent hair waving agent mixed with an oxidizing agent.

The hair deformation treatment composition of the present disclosure may be provided in the form of a kit provided with such a composition. For example, when the hair styling composition is used as a pretreatment agent for a treatment of applying heat to hair to deform the hair, it can be provided as a kit comprising such a pretreatment agent and, for example, a permanent wave agent. In addition, when the hair styling composition is used as, for example, the 1 st agent or the 2 nd agent of a 2 nd agent type permanent wave agent, it can be provided as a kit comprising the 1 st agent and the 2 nd agent.

Method for treating hair deformation

The hair deformation treatment method of the present disclosure includes: a composition for hair deformation treatment comprising a saponin is applied to hair, and the hair is subjected to a heat treatment to deform the hair. The hair deformation treatment method of the present disclosure may similarly use the above-described hair deformation treatment composition.

With the hair deformation treatment method of the present disclosure, it is advantageous to apply the hair deformation treatment composition to hair before applying heat to the hair from the viewpoint of more effectively deforming the hair. After such compositions are applied to hair, the hair may or may not be rinsed with water. In the case where the composition comprises water, the hair may be dried after the composition is applied to the hair, using a towel or dryer or the like, or naturally.

The heating treatment for hair is not particularly limited as long as the hair can be deformed. Examples of such a heating treatment include a hair iron (hair iron) treatment (sometimes referred to as "high Wen Zhengfa hair iron treatment"), a number of hair iron treatments, and other heat treatment. The heat treatment may be performed alone or in combination of a plurality of treatments.

Such heat treatment can be performed using, for example, a hair iron for a hair iron having a height Wen Zhengfa of the hair iron, a heating device used for hair waving, which is generally called hot waving such as digital waving, a hot eyelash curler, and the like.

The hair is deformed by heat treatment, and examples thereof include, but are not particularly limited to, imparting curls to hair, and correcting curls. Here, the technique described in patent document 3 is a technique for straightening hair using a hair treatment agent containing glyoxylic acid, and is not a technique for imparting curl to hair. Heretofore, there has been no technology for imparting curl more effectively using a hair treatment agent, and in addition, a change in a hair treatment agent capable of correcting curl is small, so that it can be said that the hair deformation treatment composition of the present disclosure, which can exert effects on both correction of curl and imparting curl to hair, and a hair deformation treatment method using the composition can greatly contribute to the technical field of deforming hair.

The temperature of the heat treatment of the hair may be, for example, at least 70 ℃, at least 80 ℃, at least 90 ℃, at least 100 ℃, at least 110 ℃, at least 120 ℃, at least 130 ℃, at least 140 ℃, at least 150 ℃ or at least 220 ℃, at least 210 ℃, at least 200 ℃, at least 190 ℃, or at least 185 ℃ on the hair surface. The setting temperature of a typical dryer is 100 to 120 ℃, but the dryer is typically used at a distance of about 10cm from the hair, and therefore the temperature of the hair surface at this time is about 60 to 70 ℃.

The application time to the heat-treated hair may be appropriately set according to the heat-treatment temperature used. For example, when the heating temperature is 100 ℃ or lower, the application time of the heating may be 60 minutes or lower, 45 minutes or lower, 30 minutes or lower, or 20 minutes or lower, or may be 1 minute or higher, 3 minutes or higher, 5 minutes or higher, 7 minutes or higher, or 10 minutes or higher. When the heat treatment temperature exceeds 100 ℃ (for example, about 150 to 200 ℃), the application time of the heat treatment may be 1 second or more, 3 seconds or more, 5 seconds or more, 10 seconds or more, 15 seconds or more, or 20 seconds or more, and may be 1 minute or less, 50 seconds or less, 40 seconds or less, or 30 seconds or less.

By using the hair deformation treatment composition of the present disclosure, hair can be deformed more easily without requiring skill, and as a result, according to the hair deformation treatment method of the present disclosure, the heating temperature and/or heating time used in conventional hair deformation treatment can be suppressed to be low, and thus damage to hair can be reduced or suppressed.

Hair deformation Property by Hair deformation treatment composition

The hair deformation performance by the hair deformation treatment composition of the present disclosure can be evaluated, for example, using the number of peaks of curling generated by the hair after the heat deformation treatment, the degree of correction, and the wave force increasing rate.

In several embodiments, the hair deformation performance of the hair deformation treatment composition of the present disclosure can be evaluated by the number of peaks of curl described in the evaluation test of the curl setting effect described later. The hair deformation treatment composition of the present disclosure may have 1 or more or 2 or more peaks with respect to the number of curls. The upper limit of the number of peaks is not particularly limited, and may be, for example, 5 or less, 4 or less, or 3 or less.

In several embodiments, the hair deformation performance of the hair deformation treatment composition of the present disclosure can be evaluated by the correction degree (%) described in the evaluation test of correction degree described later. The hair deformation treatment composition of the present disclosure may have a correction degree of 60% or more, 65% or more, 70% or more, 75% or more, 80% or more, 85% or more, or 90% or more. The upper limit of the correction degree is not particularly limited, and may be 100% or less.

In several embodiments, the hair deformation performance of the hair deformation treatment composition of the present disclosure can be evaluated by the wave force increase rate (%) described in the evaluation test of the wave force increase effect described later. The hair deformation treatment composition of the present disclosure may have a wave force increase rate of 1.0% or more, 3.0% or more, 5.0% or more, more than 5.0%, 7.0% or more, 10.0% or more, or more than 10.0%. The upper limit of the wave force increase rate is not particularly limited, and may be 30.0% or less, 25.0% or less, or 20.0% or less.

Examples

The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to these examples. In the following, unless otherwise specified, the blending amount is expressed as mass%.

Test examples 1 to 4

Test example 1: evaluation test of curling and setting Effect 1

In test example 1, the hair deformation performance of the saponin was evaluated based on the results of the number of peaks of curling in hair obtained according to the following experimental methods and evaluation methods. The results are shown in table 1 and fig. 1. The numerical values outside the bracket in the soapberry extract in table 1 and the numerical values in fig. 1 are the amounts of soapberry extract having 20% of saponin content, and the numerical values in brackets in the soapberry extract in table 1 are the converted amounts of only saponin.

(Experimental methods)

The preparation of the nano-scale and nano-scale system was carried out by modulating the nano-scale and nano-scale system of the company "as" brand "CL 11 (nano-scale and nano-scale of the company" as "nano-scale") and nano-scale 6 (nano-scale and nano-scale of the company "as" nano-scale ") to 1:1, and the weight of the hair bundles of the chinese human hair (length about 25cm, weight about 3.0 g) having been subjected to the decoloring step. The respective compositions prepared in such a manner that the blending ratios shown in table 1 were applied to the hair bundles, and the hair bundles were left at room temperature for 5 minutes. Next, the hair bundle was washed with water for 1 minute, dried by a dryer after towel drying, and subjected to a curling and setting operation using a curling iron set at 180℃and having a diameter of 26 mm. Next, the hair bundle was subjected to a shampoo treatment 1 time to prepare a hair bundle for evaluation.

(evaluation method)

As shown in fig. 1, the number of peaks of the curl remaining in the hair bundle (white dot portion of fig. 1) was counted by hanging down the hair bundle for evaluation. If the peak is not recognized, no curl is formed, and therefore, it can be said that the effect of hair deformation is not obtained. Here, the curling effect, i.e., the hair deformation effect was evaluated as follows:

peak number of curl

0 (curling effect: unqualified)

1-2 (curling effect: qualified)

3 (curling effect: good)

Results

As is clear from the photographs of comparative example 1 and 0% of fig. 1 of table 1, when the composition containing no saponin was applied to hair, no curl was imparted, but when the composition containing the saponin was applied to hair, from the photographs of examples 1 to 12 of table 1 and 1% to 10% of fig. 1, curl could be easily imparted to hair. From this result, it was confirmed that saponin was a component contributing to hair deformation.

From the results of examples 1 to 8, it was found that the effect of hair deformation was improved as the amount of saponin was increased.

From the results of example 9, it was found that the hair styling effect was exhibited even in a composition containing no other components such as a surfactant, that is, in a composition containing only saponin and water.

Further, as is clear from the results of examples 10 to 12, the composition containing the saponin exhibited the hair deformation effect regardless of the kind of the surfactant.

The right photograph in fig. 2 is a photograph of the hair bundle for evaluation in example 8, which was subjected to shampoo treatment 10 times. From the results, it is understood that the hair deformation effect remains even after a plurality of shampoo treatments according to the hair deformation treatment composition of the present disclosure.

Test example 2: evaluation test of curling and setting Effect 2

In test example 2, the influence of the heat treatment temperature on hair deformation was studied

(Experimental methods)

A hair bundle for evaluation was prepared in the same manner as in example 6, except that the set temperature of the curling iron was changed to 120 ℃, 150 ℃, 200 ℃. The results are shown in FIG. 3 together with the results of example 6.

Results

As can be seen from fig. 3, it was confirmed that curl was strongly imparted as the temperature applied to the hair increased.

Test example 3: evaluation test of correction degree

In test example 3, the hair deformation performance of the saponin was evaluated based on the results of the correction degree in hair obtained according to the following experimental methods and evaluation methods. The results are shown in table 2 and fig. 4. The numerical values of the soapberry extract in table 2 are the same as those in table 1. Fig. 4 is a photograph of the evaluation hair bundle of example 16.

(Experimental methods)

From the bundles of the human hair of Japanese wound in a wave shape, 2 bundles having a length of about 20cm and a weight of about 0.1g were prepared in which the peak of the wave appeared when the bundles were naturally suspended. The respective compositions prepared in such a manner that the blending ratios shown in table 2 were applied to the hair bundles, and the hair bundles were left at room temperature for 5 minutes. Next, the hair bundle was washed with water for 1 minute, dried by a dryer after towel drying, and subjected to hair iron application using a hair iron set at a height Wen Zhengfa of 180 ℃. Next, the hair bundle was subjected to a shampoo treatment 1 time to prepare a hair bundle for evaluation.

(evaluation method)

When the evaluation hair bundle was suspended as shown in fig. 4 and 1 wave peak remained in the hair bundle, the angle (α) between the intersection point near the peak point of the peak generated when the 2 slope portions in the peak were approximated to straight lines and the angle (α) caused by these 2 approximated straight lines was measured. The correction (%) was calculated by substituting the obtained angle (α) into the following formula 1. The more sharp the peak remaining in the hair bundle, the closer α is to 0 °, and the more the hair bundle is stretched into a straight line as shown in the photograph after the treatment of fig. 4, the closer α is to 180 °. When 2 peaks of the waves remain after the operation, no correction effect (hair deformation effect) is considered, and the correction degree is not calculated:

correction (%) = (α/180) ×100 … type 1

Results

As in comparative example 2, in the case of applying the composition containing no saponin to hair, peaks of 2 waves remained after the application. On the other hand, when the composition containing saponins was applied to hair as in examples 13 to 18, 1 gentle peak remained (examples 13 to 15) or no peak was generated at all (examples 16 to 18). From the results, it is clear that the hair deformation treatment composition according to the present disclosure can deform and correct the frizzy hair.

Test example 4: evaluation test of wave Forming force improving Effect

In test example 4, the hair deformation performance of the saponin was evaluated based on the results of the wave force increase rate in hair obtained according to the following experimental methods and evaluation methods. The results are shown in table 3 and fig. 5. The values in the soapberry extract of table 3 are the same as those in table 1. Fig. 5 is a photograph of the evaluation hair bundles of comparative example 3 (left photograph) and example 22 (right photograph).

(Experimental methods)

The preparation of the nano-scale and nano-scale system was carried out by modulating the nano-scale and nano-scale system of the company "as" brand "CL 11 (nano-scale and nano-scale of the company" as "nano-scale") and nano-scale 6 (nano-scale and nano-scale of the company "as" nano-scale ") to 1:1, and the weight of the hair bundles of the chinese human hair (length about 25cm, weight about 3.0 g) having been subjected to the decoloring step. Immediately after each composition prepared in such a manner that the blending ratio described in table 3 was applied to the hair bundle, 1 dose of 2 doses of a hair waving agent (brand) M was applied to the hair bundle, and left at room temperature for 15 minutes. Next, the hair bundles were washed with water for 1 minute, and after towel drying, the hair bundles were wound with a hair-waving bar of 20 mm. Next, the hair bundle was subjected to a blanching treatment at 80 ℃ for 20 minutes using a heating device DS3000 (manufactured by baf corporation). After the heating by the heating device is completed, the hair iron is removed from the hair bundle, 2 doses of a hair waving agent (brand) M, tikun di, tikun yun, tikun of tikun corporation) are applied to the hair bundle, and the hair is left at room temperature for 15 minutes. Next, the hair bundles were washed with water for 1 minute, and naturally dried to prepare hair bundles for evaluation.

(evaluation method)

As shown in fig. 5, the distance between the peaks of adjacent waves (sometimes referred to as "distance between pitches") was measured by hanging down the evaluation hair bundle. The wave force increase rate (%) was calculated by substituting the following equation 2 with the inter-pitch distance of comparative example 3 as a reference value and the inter-pitch distances of examples 19 to 24 as measured values. Here, the case where the wave force increase rate was less than 1% was regarded as "failure", the case where 1% or more and 5% or less were regarded as "pass", the case where more than 5% and 10% or less were regarded as "good", the case where more than 10% were regarded as "excellent", and the wave increase effect (hair deformation effect) was evaluated:

wave force increase rate (%) = (benchmark value-measurement value) ×100/benchmark value … type 2

Results

As is clear from table 3 and fig. 5, if the composition containing a saponin is applied to hair, the distance between the gaps becomes shorter than in the case where the composition of comparative example 3 containing no saponin is applied to hair, and thus, it is clear that even in the case where a permanent wave agent is used, the wave force of hair can be easily improved by merely applying the composition containing a saponin to hair.

Claims (9)

1. A hair deformation treatment composition comprising a saponin.

2. The composition according to claim 1, which comprises 0.001% by mass or more of the saponin.

3. The composition of claim 1 or 2, the hair deformation treatment comprising a heat treatment that applies heat to the hair surface exceeding 70 ℃.

4. A hair deformation treatment method, comprising: a composition for hair deformation treatment comprising a saponin is applied to hair, and the hair is subjected to a heat treatment to deform the hair.

5. The method according to claim 4, wherein the composition for hair deformation treatment contains 0.001% by mass or more of the saponin.

6. The method of claim 4 or 5, the heat treatment being a treatment that applies heat to the hair surface at more than 70 ℃.

7. The method according to claim 4 or 5, wherein the heating treatment is a hair iron treatment or a heat treatment.

8. The method of claim 4 or 5, wherein the deforming the hair imparts curl to the hair.

9. The method of claim 4 or 5, said deforming hair to correct frizziness.