KR101573260B1 - Method for deforming hair shape - Google Patents

Abstract

Provided is a hair deforming treatment method capable of imparting good straightness to hair while suppressing the skewing of the hair ends in the treated hair.
(I) of applying a hair treatment agent having a pH of 6 to 10 and at least one kind of sulfite or bisulfite hydrate to the hair; and applying heat to the hair after the step (I) (II) of imparting straightness to the hair, it is preferable that the step of washing the hair between the step (I) and the step (II) or the step of drying the hair after the water washing is provided.

Description

METHOD FOR DEFORMING HAIR SHAPE [0002]

The present invention relates to a hair modification treatment method for straightening hair using a one-component hair treatment agent having a hair-modifying ability.

There are various ways to straighten hair. As a typical example, there is a treatment method using a shampoo correction agent. In this hair straightening treatment, disulfide bonds in hair are generally cleaved by a reducing agent to generate a mercapto group and straightened (straightened) by using a mechanism such as a comb. In this state, the oxidizer is used to straighten the wax by re-forming a new disulfide bond at a position different from the previous position.

In this respect, in the wax correction process, a hair treatment agent composed of a first agent containing a reducing agent and a second agent containing an oxidizing agent is usually used (Patent Documents 1 and 2, etc.).

Japanese Patent Application Laid-Open No. 2000-256146 Japanese Patent Application Laid-Open No. 2002-356408

However, in the wax calibrating treatment using the hair treatment agent of the formula 2, as described above, the step of applying the first agent containing the reducing agent to the wax coat, the step of stretching the wax coat, the application of the second agent containing the oxidizing agent . In addition, since the step of washing or drying the hair between the respective steps is usually provided, a long time of 3 to 5 hours is required from the start to the end of the treatment. In view of this, there is a demand for a method for completing the hair straightening process in a shorter time.

Thus, a method of treating waxy calendula, which reduces the number of processes by using a hair treatment agent of 1-form, has been studied. It is difficult to effectively combine the reducing agent for cutting the disulfide bond of the hair and the oxidizing agent for oxidizing the mercapto group generated by the reduction in one treating agent to effectively take out the functions of both. Thus, for example, it is conceivable to incorporate a reducing agent into the hair treating agent of the formula 1, and to cause the resulting mercapto group to be disulfide-bonded again by oxidation with air.

However, it is difficult to oxidize a mercapto group formed by a reducing agent without using an oxidizing agent, and to bond it again to a disulfide bond. In addition, when such a hair treatment agent is used, there is a problem that the hair ends are wrinkled.

From this point of view, it is required to develop a treatment method capable of imparting straightness to hair without labor and time, and capable of suppressing the skewing of hair after treatment.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of treating hair deformation capable of satisfactorily straightening hair while suppressing the skewing of hair ends in treated hair.

The hair treating method of the present invention which can attain the above object comprises a step (I) of applying a hair treating agent having a pH of 6 to 10, which contains at least one sulfite or bisulfite, to hair, And a step (II) of heating the hair to a straightness by applying heat to the hair after the step (I) in excess of 220 캜.

As hair reducing agents used in hair follicle calibrations, thioglycolic acid, cysteine or salts thereof are generally used as a reducing agent. However, these reducing agents are excellent in the function of cleaving disulfide bonds in hair by reduction as described above. Therefore, in the hair treated by the hair treatment agent containing such a reducing agent, many disulfide bonds in the hair are cleaved to generate a mercapto group. Thus, if these mercapto groups are oxidized by an oxidizing agent and are not disulfide-bonded again, the hair ends are particularly squashed.

Sulfites and hydrogen sulfites are also known as reducing agents for hair treatment agents. However, unexpectedly, the inventors of the present invention found that, in contrast to other reducing agents, hair treatment agents containing a sulfite or a bisulfite resin scarcely produced disulfide bonds due to reduction.

On the other hand, in the case of a hair treatment agent containing a sulfite or a bisulfite, it has been found that the hair can be made into a satisfactory straight hair by treating the hair coated with the hair treatment agent at a temperature exceeding 220 ° C. Further, treatment of hair treated with a hair treatment agent containing a reducing agent such as thioglycolic acid, cysteine or a salt thereof at a temperature higher than 220 캜 further cleaves the disulfide bond. On the other hand, it has also been found that disulfide bond cleavage does not proceed even when hair treated with a hair treatment agent containing a sulfite or a bisulfite is treated at a temperature exceeding 220 캜.

In the method for treating a hair strain of the present invention, a hair treated with a hair treatment agent having a pH of 6 to 10 by mixing sulfite or bisulfite is blended on the basis of such knowledge to a temperature exceeding 220 캜 . According to the method of treating a hair strain of the present invention, for example, it is not yet possible to straighten the hair to such a degree that the hair treatment method using a conventional hair conditioning calibrator is used. However, in the processing method of the present invention, the number of steps required to complete the processing can be shortened and the processing time can be shortened. Further, the treatment method of the present invention can suppress the skewing of the tip of the hair, which is liable to occur in the treatment method using the hair conditioning correcting agent of the one-shot type, and can continue the hair straight for a relatively long period.

According to the present invention, it is possible to provide a hair strain treating method capable of satisfactorily straightening hair while suppressing the skewing of the hair ends in the treated hair.

The step (I) according to the present invention is a step of applying a one-component hair treatment agent to hair.

The one-component hair treatment agent used in the step (I) has a hair-modifying ability and is blended with at least one sulfite or bisulfite.

Examples of the sulfite which can be compounded in the composition 1 hair treatment agent include sodium sulfite, potassium sulfite, calcium sulfite, barium sulfite and ammonium sulfite. Examples of the sulfurous hydrogenphosphate which can be compounded in the composition 1 hair treatment agent include sodium hydrogensulfite, potassium hydrogensulfite and ammonium hydrogensulfite. The above-mentioned sulfites or hydrogen sulfites may be used alone or in combination of two or more. For example, at least one sulfite and at least one hydrogen sulfite may be used in combination. Among them, sodium sulfite or sodium hydrogen sulfite is preferable in terms of stability and safety.

1 Formulation Amount of sulfite or bisulfite hydrogenphosphate in the hair treatment agent (when the combination of both sulfite and bisulfite is added to the hair-treating agent of the formula 1) 1 Amount of the sulfite or bisulfite hydrogenphosphate in the hair- The same shall apply hereinafter) is preferably 0.5% by mass or more, more preferably 4% by mass or more, from the viewpoint of securing the effect (the effect of straightening the hair follicles) better. However, if the amount of the sulfurous salt or the hydrogen sulfite in the hair treatment agent for 1 part is too large, there is a fear that the hair deformability is lowered, and the effect of suppressing the skipping of the hair ends may be reduced. Therefore, the blending amount of the sulfite in the 1-component hair treating agent is preferably 10% by mass or less, more preferably 8% by mass or less.

In general, it is known that a sulfite or a hydrogen sulfite salt has a high reducing ability in an acidic region. However, in the method of the present invention, the pH of the one-component hair treatment agent is adjusted to 6 to 10, thereby increasing the hair deformability and suppressing the skewing of the hair ends after the treatment.

1 Composition The pH of the hair treatment agent can be adjusted, for example, by adding an alkaline agent to the composition 1 hair treatment agent as required. Examples of such an alkali agent include sodium carbonate, ammonium hydrogen carbonate, ammonia water, potassium hydroxide, sodium hydroxide, sodium borate, monoethanolamine, diethanolamine, triethanolamine and the like.

1 Formulation Hair treatment agent uses water as the main medium. In the present specification, "water as the main medium" means that the amount of water in the entire medium in the one-component hair treatment agent is 50% by mass or more. As the medium, only water may be used, and if necessary, an organic solvent such as a lower alcohol (an alcohol having 6 or less carbon atoms) such as ethanol or isopropanol may be used in combination with water. The blending amount of the medium in the 1-component hair treatment agent is preferably 40 to 95% by mass, for example.

It is preferable that a dithiodiglycolate is blended in the one-component hair treatment agent. As a result, the hair deformability becomes higher, the treated hair can be made into a more favorable straight, and the softness of the hair can be enhanced.

Examples of the dithiodiglycolic acid salt include diammonium dithiodiglycolate, ditiodiglycolic acid di-monoethanolamine and ditiodiglycolic acid ditriethanolamine. Of these, only one kind may be used, and two kinds Or more may be used in combination.

The blending amount of the dithiodiglycolic acid salt in the one-component hair treating agent is preferably 0.5% by mass or more from the viewpoint of securing the effect of the use more satisfactorily. However, if the amount of dithiodiglycolic acid salt in the 1-component hair treatment agent is too large, the unpleasant odor generated during the treatment tends to become strong. Therefore, it is preferable that the blending amount of the dithiodiglycolate in the one-part treating hair treatment agent is 10 mass% or less.

It is preferable that a water-soluble polymer is blended in the 1-component hair treatment agent. As a result, the viscosity of the one-component hair treatment agent can be increased to improve operability. For example, it is possible to facilitate application to the hair. Further, by blending the water-soluble polymer, it is possible to suppress the clipping of the hair ends after treatment more satisfactorily.

Examples of the water-soluble polymer include natural polymers such as carrageenan, agar, xanthan gum, gelatin, pectin, tamarind seed polysaccharide, locust bean gum, guar gum, gum arabic, tragacanth gum, hyaluronic acid or its salt and chitosan; Cellulose derivatives such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, cationized cellulose, starch phosphate ester, starch sodium glucosate, amphoteric starch, cationized guar gum, Natural polymer derivatives such as hydroxypropylated guar gum and hydroxypropylated guar gum; Synthetic polymers such as polyvinyl pyrrolidone, carboxyvinyl polymer, and acrylic acid / methacrylic acid alkyl copolymer; And the like, and only one of them may be used, or two or more of them may be used in combination.

The blending amount of the water-soluble polymer in the 1-component hair treatment agent is preferably 1% by mass or more from the viewpoint of securing the effect by its use. However, if the amount of the water-soluble polymer in the 1-component hair treatment agent is too large, the viscosity of the 1-component hair treatment agent becomes too large, and the operability thereof may deteriorate. Therefore, the blending amount of the water-soluble polymer in the 1-component hair treatment agent is preferably 10% by mass or less.

In addition to the above-mentioned components, various ingredients used as ordinary hair cosmetic compositions can be compounded into the composition-1 hair treatment agent within the range that does not impair the effects of the present invention.

1 Formulation The formulation of the hair treatment agent is not particularly limited and may be in the form of lotion, oil, cream or gel.

In the step (I), it is preferable that the hair coated with the one-component hair treatment agent is left for about 3 to 30 minutes, and then the step (II) is performed. This makes it possible to more effectively infiltrate the hair-treating agent of the present invention into the hair to straighten the hair.

The step (II) of the method of the present invention is a step of applying heat to the hair after applying the one-component hair treatment agent, and the hair is made into a good straight hair by this step.

In step (II), heat is applied to the hair in excess of 220 캜. If the temperature at this time is too low, the hair can not be made into good straightness. The temperature of the heat applied to the hair in the step (II) is preferably 225 캜 or higher, more preferably 230 캜 or higher, in terms of further enhancing the effect of straightening the hair. However, if the temperature of the heat applied to the hair is too high, the hair may be damaged. Therefore, the temperature is preferably 250 DEG C or less.

Further, in the step (II), heat is applied in a state in which the hair is straightened, and specifically, for example, the hair is straightly inserted into a hair iron plate for straight hair having a temperature exceeding 220 캜, , It is preferable to apply heat to the hair in such a way as to flow from the inside of the hair to the end of the hair.

As the hair iron for straight hair, any material can be used as long as the temperature (surface temperature) of the plate portion can be heated to more than 220 ° C and the hair can be straightened under heating.

Further, the step (II) may be carried out immediately after the hair coated with the one-component hair treatment agent in the step (I), preferably for the above-mentioned time, but there is provided a step of washing the hair after the above- , And then the step (II) may be carried out thereafter. This makes it possible to further enhance the effect of straightening the hair.

Further, after the step of washing after the step (I), a step of drying the hair may be provided, and then the step (II) may be carried out. Further, in this drying step, it is preferable that a part of the hair remains in the hair, thereby further enhancing the effect of straightening the hair.

After the step (II), a step of washing and drying the hair as required may be provided. It is also possible to provide a step of washing the hair prior to the step (I), or a step of drying the hair after the washing.

In the method of the present invention, unlike a conventional hair shampoo treatment method using a hair treatment agent of the formula 2, a step of applying a second agent containing an oxidizing agent to the hair to fix the straight shape and a step of washing the second agent , The subsequent drying step and the like can be omitted. Therefore, the processing can be completed within one hour (for example, within 30 minutes), so that the processing time can be drastically shortened compared with the conventional wax calibrating processing method.

[Example]

Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In the following Examples and the like, "%" means "% by mass ". The compounding amount of the one-component hair treatment agent is represented by the amount of each component so that the total amount is 100%, and in the following Tables 1 to 3, the indication of the% is omitted, and only the numerical value indicating the amount is indicated.

Experiment 1: Effect confirmation test by hair strain treatment method

≪ 1 Preparation of the formulated hair treatment agent >

Formulation examples 1 to 18 were prepared in the formulations shown in Tables 1 to 3.

Further, the term " system 100 "in the column of water in Tables 1 to 3 means that the total amount of each component other than the water constituting the one-component hair treatment agent is made to be 100% by adding the amount of water. "5.5E.O." in "polyoxyethylene cetyl ether (5.5EO)" described in Tables 1 to 3 means that the average addition mole number of ethylene oxide is 5.5. The "optimum amount" of the column of "monoethanolamine solution" and "aqueous phosphoric acid solution" in Tables 1 to 3 means that the pH of each of the one-component hair treatment agents is used as much as the values shown in the respective tables.

≪ Evaluation of hair after treatment >

Hair modification treatment was carried out using the one-component hair treatment agents of Preparation Examples 1 to 18, and the spread of the hair after the treatment, the curl of the hair ends, and the softness were evaluated.

First, a large number of waxy hairs having a length of 25 cm (length measured in a natural state without stretching) were sampled from the same person, and 1.5 g of these waxes were collected to produce plural hair bundles. These mother lobes were washed with a 10% aqueous solution of sodium laureth sulfate, washed with water and dried to obtain a test mother lobe.

Two grams of 1-treatment hair treatment agent was applied to each test hair, left to stand at 50 ° C for 15 minutes, and then washed with water and dried with leaving some moisture. The test hair was sandwiched between the plate portions of the hair iron for straightening heated to a predetermined temperature, and the hair was passed through from the inside of the hair toward the edge of the hair to complete the treatment. Also, the heating temperature by the straight hair iron was set to 180 ° C, 200 ° C and 230 ° C.

Five professional panelists were evaluated according to the following criteria for the spread of the hair, the curl of the hair tip and the softness according to each test hair after treatment.

(Evaluation Criteria of Hair Expansion)

Not stretched ... ... 0 point

Slight spreading ... ... 1 point

Expansion ... ... 2 points

(Evaluation criterion of skewing of hair ends)

Squatting ... ... 0 point

A little squatting ... ... 1 point

Apparently it does not wrinkle, but it touches when it touches ... ... 2 points

Not wrinkled ... ... 3 points

(Evaluation standard of softness of hair)

Stiffness compared to untreated hair ... ... 0 point

Almost like untreated hair ... ... 1 point

Softness compared to untreated hair ... ... 2 points

Considerably soft compared to untreated hair ... ... 3 points

For each evaluation result, an average value of the score of the entire panel list was obtained, and according to the following criteria, the spread of the hair, the curl and the softness of the tip of the hair were determined according to each test hair after treatment.

(Spreading of hair)

0 point or more, less than 1.6 point: not straightened

1.6 points or more: spread

(The curl of the end of the hair)

0 point or more, less than 2.2 point: Rubbing

2.2 points or more, less than 2.6 points: little scratching

2.6 points or higher: not squashed

(Softness of hair)

0 point or more, less than 2 points: I do not feel softness

2 points or more, less than 2.4 points: Softness

2.4 points or more: fairly soft

Of these results, Table 4 shows the cases where the heating temperature by the hair iron for straightening was 180 ° C (Comparative Examples 1 to 18), Table 5 shows the case where the heating temperature was 200 ° C (Comparative Examples 19 to 36) (Comparative Examples 37 to 41 and Examples 1 to 13) are shown in Table 6, respectively.

As shown in Tables 4 to 6, in the hair modifying treatment methods of Examples 1 to 13 in which heating with a hair iron for straightening was carried out at an appropriate temperature by using a one-component hair treating agent having an appropriate composition and pH, Can be made to be a good straight, and the curl of the hair end is also suppressed. In addition, the hair after the treatment by the hair strain treatment methods of Examples 1 to 13 is also soft.

On the other hand, in the hair strain treatment methods of Comparative Examples 1 to 36 in which the heating temperature by the hair iron for straightening is inadequate, particularly, the treated hair is not made into a good straightness. Further, in some of the hair after the treatment by these treatment methods, the ends of the hair became squashed or the softness fell.

On the other hand, although the heating temperature by the hair iron for straightening is appropriate, the hair modifying treatment method of Comparative Examples 37 to 39 using a one-component hair treating agent containing a reducing agent used in a conventional hair shampoo agent instead of sulfite or bisulfite , The treated hair could be made into a satisfactory straight hair, but the hair ends were squashed.

Further, although the heating temperature by the hair iron for straightening is appropriate, in the case of the hair modifying treatment method of Comparative Example 40 using the one-component hair treating agent whose pH is too low, it is insufficient to make the treated hair a good straightness. The heating temperature by the hair iron for straightening was proper, but in the case of the hair modifying treatment method of Comparative Example 41 using the one-component hair treating agent having an excessively high pH, the end of the hair after the treatment was crushed.

Experiment 2: Determination of Disulfide Bond Amount in Hair after Treatment with Formulated Hair Treatment Agent

1 A hair treatment agent was prepared by using a 4% strength aqueous sodium sulfite solution (pH 8.0, Preparation Example 19) and a 7% strength aqueous ammonium thioglycolate solution (pH 9.2, Preparation Example 20) The amount of disulfide (SS) bond in untreated hair was determined as the residual ratio of untreated hair to SS binding (hereinafter referred to as "residual amount of SS binding amount to untreated hair").

The treatment of the hair was carried out in the same manner as in Experiment 1 except that the hair treatment agent of Preparation Example 1 was used in the same manner as in Experiment 1 except that the sample (1) was not heated by the hair iron for straight hair, A sample (2) subjected to heating at 180 ° C and a sample (3) heated at 230 ° C by a hair iron for straightening were prepared. In addition, except that the sample (4) treated in the same manner as in Experiment 1 and the one-component hair treatment agent were used, except that the heat treatment by the hair iron for straightening was not performed by using the one-component hair treatment system of Preparation Example 20 Samples (5) and (5) which were heated at 180 ° C by a hair iron for straightening and Samples (6), respectively, which had been subjected to the same treatment as Samples 5 and then subjected to oxidation treatment using sodium bromate, Respectively.

The amount of S-S bonds in each sample and untreated hair was determined as follows using polarography.

In this measurement, since only the S-S bonding amount can not be measured directly, the total amount of the S-S bonding and the S-H bonding is once measured, and the S-H bonding amount separately measured from this value is removed to obtain the S-S bonding amount.

Measurement of the total amount of S-S bond and S-H bond Samples were prepared as follows. Element: 240.24 g, ammonium chloride: 4.279 g, potassium chloride: 18.6375 g, sodium sulfite: 12.604 g, and gelatin: 0.05 g were measured in a 500 mL beaker, to which 400 mL of purified water was added. This was heated to 70 DEG C to dissolve the gelatin, and the pH was adjusted to 9.3 by adding ammonia water. Further, purified water was added to make 500 mL, and then transferred to a brown bottle. Then, 0.1712 g of methylmercuric iodide was added to the brown bottle, which was dissolved by stirring to prepare a measuring reagent and stored at 4 캜. Seven measurement reagents were prepared, and the samples (1) to (6) and 10 mg of untreated hair were each put into a separate measuring reagent to obtain a measurement sample.

A sample for measuring the S-H bonding amount was prepared as follows. A phase composed of tris hydroxymethylaminomethane buffer (100 mL, concentration 0.1 M, pH 7, and 0.1 M KCl added), B phase composed of an aqueous gelatin solution (25 mL, concentration 0.25%), And purified water was added to 3.73 g to make 500 mL. 2.5 mL of the solution was mixed with 2.5 mL of a methyl iodide mercury solution (dimethylformamide solution of 0.1 M concentration) and mixed with the prepared C phase, and the mixture was stirred to prepare a measuring reagent, which was then stored in a brown bottle at 4 ° C. . Seven measurement reagents were prepared, and the samples (1) to (6) and untreated hair each 40 mg were put into separate measurement reagents to obtain measurement samples.

Measurement of the total amount of SS bond and SH bond The total amount of SS bond and SH bond in the sample and the amount of SH bond in the sample to be measured for the SH bond were measured by using "DEOXYGEN STAND DS-100 (trade name)", "POLAROGRAPHIC ANALYZER P-3000 (trade name) "and " drip mercury electrode to P-1000ST (trade name) ". Then, for each of the samples (1) to (6) and the untreated hair, the amount of SH bond was removed from the total amount of the SS bond and the SH bond, and the untreated hair of the SS bond amount of the samples (1) to (6) (%) With respect to the amount of SS bonding. These results are shown in Table 7.

As shown in Table 7, the hair treated with the 1-component hair treating agent of Preparation Example 20 in which a thioglycolate salt (ammonium thioglycolate), which is generally used as a reducing agent for a general hair growth correcting agent, was added was heated by straight hair iron The amount of SS bonding is reduced in the former [sample (4)] and in the [sample (5)] after the heat treatment at 180 占 폚. From this point, it can be seen that cleavage of the S-S bond occurred by reduction. The S-S bonding amount is increased by the treatment with the oxidizing agent [sample (6)]. At this point, it can be seen that the S-S bond is being re-formed. The treatment in the sample (6) corresponds to the treatment by the hair toning agent of the second formula. From these results, it can be seen that, in the case of a hair treating agent using a general reducing agent, treatment with an oxidizing agent is required in order to increase the amount of S-S bonding of the hair to make it equivalent to that in the untreated state.

On the other hand, in the hair treated with the one-component hair treating agent of Preparation Example 19 in which sodium sulfite was blended and the pH was adjusted to 8.0, the hair after heating at 180 ° C after heating by hair iron for straight hair, after heating at 230 ° C In either case, the SS binding amount is almost equal to untreated hair. From this point, it can be seen that cleavage of the S-S bond due to reduction rarely occurs. From these results, it can be seen that, in the treatment using the one-component hair treatment agent prepared by mixing the one-component hair treatment agent of Preparation Example 19, that is, the sulfite or the hydrogen sulfite, and having a proper pH value, a hair treatment agent containing other common reducing agents It is presumed that straightness is imparted to the hair by a mechanism (mechanism) different from that in the case of the treatment using the hair treatment apparatus (corresponding to the first agent in the hair loss correcting agent). From the above results, it was also confirmed that, in the case of the one-component hair treatment agent (the one-component hair treatment agent of Preparation Example 19) in which the sulfite or bisulfite hydrate was blended to adjust the pH value to an appropriate value, oxidation treatment for returning the amount of SS binding to the untreated hair Is unnecessary.

Claims (10)

(I) a step of applying to a hair a composition containing at least one sulfite or bisulfite and a dithiodiglycolate in combination and having a pH of 6 to 10,
A step (II) of imparting straightness to the hair by applying heat to the hair after the step (I) by a hair iron for straight hair having a surface temperature of 230 to 250 ° C. The method according to claim 1,
And a step of washing the hair between steps (I) and (II). 3. The method of claim 2,
And a step of drying the hair between the step of washing the hair and the step (II). 4. The method according to any one of claims 1 to 3,
Wherein the compounding amount of the sulfite or the hydrogen sulfite in the 1-component hair treating agent is 0.5 to 10% by mass. 4. The method according to any one of claims 1 to 3,
1 < tb > Head Col 1 to 3 < tb > Head Col 1: < tb > 4. The method according to any one of claims 1 to 3,
Wherein the hydrogen sulfite is sodium hydrogen sulfite in the hair treating agent. 4. The method according to any one of claims 1 to 3,
Wherein the compounding amount of the dithiodiglycolate in the 1-component hair treating agent is 0.5 to 10% by mass. 4. The method according to any one of claims 1 to 3,
1 < / RTI > The hair treatment method according to claim 1, wherein the hair treatment agent further comprises a water-soluble polymer. delete delete