KR102359462B1 - Film For Hair Perm and Perm Treatment Method Using the Same - Google Patents

Abstract

The present invention relates to a film for perm for forming waves in hair. In the film for perming hair of the present invention and the perm treatment method using the same, since the reducing agent component is included in the film, there is no need to directly apply the reducing agent to the hair. In addition, a biodegradable film is used, and the treatment time can be adjusted by adjusting the degree and time of dissolution in water. In addition, it is possible to manufacture a film containing various perm chemical concentrations and sub-material components.

Description

Film For Hair Perm and Perm Treatment Method Using the Same

The present invention relates to a film for perming hair for forming waves in hair.

In addition to genres such as cut, coloring, upstyling, and drying for hair design, permanent wave is an essential process for hair production. A permanent wave is a method of creating a wave that can be maintained for a long time by changing the hair tissue by the action of heat or chemicals, also called perm, perm or perm for short. By slowing disulfide bonds, ionic bonds, and hydrogen bonds in keratin, which is the main component of hair, and cutting and re-crosslinking, it can bend naturally and change the shape of the hair as desired. In general, the current perm technology for wave shaping of the user's hair includes the following two steps.

First, a reducing step of cleaving the cystine bonds in the hair keratin is carried out using a reducing agent, followed by an oxidation step using an oxidizing agent to restore the bonds in the reduced keratin. During the reduction step, after the hair is rolled up into a cylindrical shape such as a curl clip, a predetermined time elapses under a constant temperature in this state to form a wave shape. After that, it is treated with an oxidizing agent to establish a cystine bond again to fix the shape of the wave. In general, cysteine or thioglycolate is used as a reducing agent, and sodium bromate or hydrogen peroxide is used as an oxidizing agent. Since the reducing agent is a liquid, gel, or low-viscosity cream, it tends to drip on the scalp. This may cause discomfort to the user or irritation of the scalp, which may cause itching or inflammation.

Korean Patent Application Laid-Open No. 2016-0102432 discloses a hair wave forming device including an insulating sheet to protect the scalp. However, this cannot prevent damage to the scalp caused by the reducing agent used for perm.

Republic of Korea Patent Publication No. 2016-0102432

An object of the present invention is to provide a film for perm containing a reducing agent for hair perming and a perm treatment method using the same.

The present invention has completed the present invention by discovering a film for perm containing a reducing agent component for hair perming that can prevent scalp damage because there is no need to directly apply a reducing agent during perm treatment.

The present invention is a hair perming film comprising a reducing agent for hair perming and a biodegradable polymer supporting the reducing agent, wherein the reducing agent cuts or cleaves the disulfide bond of cystine amino acid in the keratin protein of the hair to reduce it to cysteine amino acid. Thioglycolic acid, cysteine, cysteamine, glycerylthioglycolate, or thiolactic acid that allows the appearance to be modified, and the biodegradable polymer is PVA (polyvinyl alcohol), PEG (polyethylene glycol), CMC (carboxymethyl cellulose), PLGA [poly(lactic-co-glycolic acid)], PLA (polylactic acid), PGA (polyglycolic acid), PHA (polyhydroxyalkanoate) and at least one selected from the group consisting of PCL (polycaprolactone), The biodegradable polymer absorbs water and releases the reducing agent to the outside of the film for hair perming.

The present invention also provides a film for hair perming, wherein the reducing agent is contained in an amount of 0.01 to 50% by weight based on 100% by weight of the biodegradable polymer.

The present invention also provides a perm treatment method using a film for perming hair, the method comprising: cutting the film according to the length of the hair; attaching the cut film to the hair and fixing it to a molding member for perm; supplying moisture to the hair fixed to the molding member; a hair softening step of leaving the hair supplied with moisture for 30 to 60 minutes; and a neutralization step of applying a neutralizing agent, bromate or hydrogen peroxide solution, to the hair that has undergone the softening step and leaving it to stand for 10 to 20 minutes, wherein the hair perm film includes a reducing agent and a biodegradable polymer component, and the hair softening step includes It provides a perm treatment method using a film for perming hair, in which a reducing agent component is released from the film for perming for hair supplied with moisture to soften the hair.

The present invention also provides that the reducing agent is thioglycolic acid, monoethanolamine, cysteine, cysteamine, which cuts or cleaves the disulfide bond of cystine amino acid in the hair keratin protein and reduces the disulfide bond to cysteine amino acid to modify the appearance of the hair. Glyceryl thioglycolate or thiolactic acid, and the biodegradable polymer is PVA (polyvinyl alcohol), PEG (polyethylene glycol), CMC (carboxymethyl cellulose), Agarose, PLGA [poly (lactic-co-glycolic acid)], PLA ( Polylactic acid), polyglycolic acid (PGA), polyhydroxyalkanoate (PHA), and polycaprolactone (PCL) provides a perming method using at least one film for perming hair.

The present invention also provides a perm treatment method using a film for perming hair, wherein the hair softening step is performed at 30°C to 60°C.

In the film for perming hair of the present invention and the perm treatment method using the same, since the reducing agent component is included in the film, the reducing agent is released by supplying moisture, and there is no need to directly apply the reducing agent to the hair. In addition, by using a biodegradable film, it is possible to control the degree of dissolution in water and the time to maintain the film shape, thereby controlling the convenience and time during perm treatment. In addition, it is possible to manufacture a film containing various perm chemical concentrations and sub-material components.

1 is a photograph of a film for hair perming according to an embodiment of the present invention. (a) and (b) are films containing ammonium thioglycolate as a reducing agent, (c) and (d) are cysteamine as a reducing agent. included film.
Figure 2 is a photograph for each stage of perming treatment of short hair using the film for perming hair according to an embodiment of the present invention.
3 is a photograph of a result of long hair perming using a film for perming hair according to an embodiment of the present invention and a photograph of a wave of hair after one week has elapsed.
4 is a photograph showing the results of perming treatment for long hair using a film containing cysteamine as a reducing agent according to an embodiment of the present invention.

Hereinafter, a preferred embodiment that can be easily implemented by a person of ordinary skill in the art to which the present invention pertains will be described in detail with reference to the drawings.

Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to conventional or dictionary meanings. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

In one aspect, the present invention is a film for perming hair comprising a reducing agent and a biodegradable polymer.

Hair is composed of keratin composed of 18 amino acids, and cysteine accounts for 14% to 16% of the amino acids constituting keratin. The shape of the hair is mainly formed by immobilization of cysteine to cystine by a disulfide bond (-S-S-). In the permanent processing of hair, which forms waves on straight hair or straightens wavy hair in a straight line, a perm composition containing a reducing agent is added to the hair to break the disulfide bond, and after shaping the hair into a desired shape, an oxidizing agent is applied. can be added and fixed. In the present invention, a perm treatment can be performed without directly applying a reducing agent to the hair by using a hair perming film containing a reducing agent.

The film for perming hair of the present invention includes a reducing agent and a biodegradable polymer. The reducing agent is a chemical solution generally used as an emollient for perm, and in one embodiment, thioglycolic acid, cysteine, cysteamine, glycerylthioglycolate or thiolactic acid may be used. The biodegradable polymer can be used as a carrier of an active ingredient, and in the present invention, a biodegradable polymer film loaded with a reducing agent, which is a hair softener, is used for perm treatment. In one embodiment, the biodegradable polymer is PVA (polyvinyl alcohol), PEG (polyethylene glycol), CMC (carboxymethyl cellulose), PLGA [poly (lactic-co-glycolic acid)], PLA (polylactic acid), PGA (polyglycolic acid) ), at least one selected from the group consisting of polyhydroxyalkanoate (PHA) and polycaprolactone (PCL), and preferably at least one selected from polyvinyl alcohol (PVA), polyethylene glycol (PEG) and carboxymethyl cellulose (CMC). In one embodiment, the reducing agent may be included in an amount of 1 to 50% by weight based on 100% by weight of the biodegradable polymer. The type and amount of the reducing agent can be selected according to the degree and condition of hair damage.

According to an embodiment of the present invention, the film for perming hair can be prepared in a roll form, in the form of a transparent or translucent film as shown in FIG. 1, for easy storage, and can be cut and used according to the length of the hair. 1 (a) and (b) are films containing ammonium thioglycolate as a reducing agent, (c) and (d) are films containing cysteamine as a reducing agent. In general, a reducing agent is applied to the entire hair to soften the hair during perm treatment, whereas the film for perming hair of the present invention is applied to the hair and rolled up and fixed at the same time on a molding member such as a rod to soften the hair by supplying moisture. action can be performed. Since it is unnecessary to apply the reducing agent directly to the hair, it is possible to solve the problem caused by the chemical solution coming into contact with the scalp. In addition, it is possible to shorten the treatment time by performing the molding step and the softening step at the same time. When moisture is supplied to the film, the reducing agent, which is an active ingredient, is released from the film, and the hair can be softened by the released reducing agent. Depending on the condition of the hair, the operator can control the solubility of the reducing agent released from the film by controlling the amount and time of moisture supply. Moisture may be supplied by spraying, and hair may be softened by leaving it for 30 to 60 minutes after supplying moisture. By applying heat during the softening process, the treatment time can be shortened and the wave strength can be adjusted.

The film for perming hair of the present invention may include various additives to prevent damage to the hair during hair softening. For example, it may contain a moisturizer and a preservative. As the humectant, various types of humectants commonly used in perm compositions may be used, for example, glycerin, fatty alcohol, 1,3-butylene glycol, propylene glycol, DL-panthenol, sorbitol One or more selected from the group consisting of , glycol distearate and sorbitol hydroxy stearate may be used.

As the preservative, those commonly used in the composition for perm can be used, for example, imidazolidinyl urea, diazolidinyl urea, quaternium-15, phenoxyethanol, ethanol, potassium sorbate, paraoxy At least one selected from the group consisting of methyl benzoate, butyl paraoxybenzoate, propyl paraoxybenzoate and ethyl paraoxybenzoate may be used.

In addition, the film for hair perming according to the present invention helps to achieve the object of the present invention within the range that does not impair the object according to the present invention, or a penetration aid and formulation stabilizer for contributing to the preparation of a cosmetic formulation , surfactants, conditioning agents, skin softeners, appearance enhancers, fragrances, pigments, sequestering agents, and the like may further include various ingredients.

The hair softened by the moisture supply of the film for hair perming of the present invention can be neutralized with an oxidizing agent to fix the wave. The oxidizing agent of the present invention may be provided as an aqueous solution or as a powder dissolved prior to use. The operator determines the amount of the mixed composition applied to the hair and the concentration of hydrogen peroxide according to the level of damage to the hair and the length of the hair. In the present invention, the oxidizing agent may be composed of, for example, a mixture of hydrogen peroxide and bromate. In the present invention, the hydrogen peroxide is preferably used in a concentration of 2 to 3% by weight. In addition, as the bromate, for example, sodium bromate, potassium bromate, etc. may be used, and it is preferable to use a concentration of 2.5 to 3.5% by weight. In the present invention, it is preferable to use a mixture of hydrogen peroxide and bromate used in the oxidizing agent in a weight ratio of 30-50:50-70. When used in this way, the oxidation time can be shortened and damage to the hair can be minimized.

In another aspect, the present invention is a perm treatment method using a film for perming hair,

The method comprises the steps of cutting the film to a length of hair; attaching the cut film to the hair and fixing it to a molding member for perm; supplying moisture to the hair fixed to the molding member; a hair softening step of leaving the hair supplied with moisture for 30 to 60 minutes; and applying a neutralizing agent, such as bromate or hydrogen peroxide, to the hair that has undergone the softening step, and leaving it for 10 to 20 minutes to neutralize. The film for perming hair is a film including the above-described reducing agent and biodegradable polymer component, and the reducing agent component is released from the film for perming hair supplied with moisture to soften the hair. The hair softening step is preferably performed at 30°C to 60°C. Hair that has gone through the softening step can be neutralized by applying an oxidizing agent while being fixed on the molding member, and when the neutralization step is finished, the molding member can be separated and the hair washed to finish the perm treatment.

Hereinafter, the present invention will be described in detail through examples. The following examples only illustrate the present invention, but the scope of the present invention is not limited to the following examples. The present embodiments are provided so that the disclosure of the present invention is complete, and to fully inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, and the present invention will be defined by the scope of the claims. only

Example

Example 1. Preparation of film for perming hair

1) Reagent

PVA (polyvinyl alcohol), PEG (polyethylene glycol), CMC (carboxymethyl cellulose), and agarose are used as biodegradable polymers to prepare a film for hair perming, and ammonium thioglycolate (50% aqueous solution) is used as a reducing agent. ) and cycteamine were used, respectively. When thioglycolic acid was used, the acidity of the solution was adjusted with monoethanolamine, and cysteamine was used as it is.

2-1) Preparation of base film (PVA + A + PEG)

To prepare the base film for hair perm of the present invention, 100 g of a mixed solution containing 0.1 to 0.5 g of PEG and 0.1 to 1 g of agarose in 1 wt% PVA solution is heated in a 700 W microwave oven for at least 2 minutes to completely dissolve the contents. , cooled to 50 to 60 ℃ 15x15 cm ² Poured into an acrylic box. When the solution hardened, it was dried in an oven at 50° C. for 12 to 24 hours to obtain a film. The detailed content in the film is shown in Tables 1-3.

2-1) Preparation of film containing monoethanol (M-film)

In order to prepare the film for hair perming of the present invention, 100 g of a mixed solution containing 1 wt% PVA solution, 1 wt% CMC solution, 0.1 to 0.5 g of PEG and 0.1 to 1 g of agarose is heated in a 700 W microwave oven for at least 2 minutes. After completely dissolving, monoethanolamine was added and mixed, cooled to 50 to 60°C, and poured into a 15x15 cm ² acrylic box. When the solution hardened, it was dried in an oven at 50° C. for 12 to 24 hours to obtain a film. The detailed contents of the substances in the film are given in Table 3.

2-2) Preparation of film containing ammonium thioglycolate and monoethanolamine (T-M-film)

In order to prepare the film for hair perming of the present invention, 100 g of a mixed solution containing 1 wt% PVA solution, 1 wt% CMC solution, 0.1 to 0.5 g of PEG and 0.1 to 1 g of agarose is heated in a 700 W microwave oven for at least 2 minutes. After completely dissolving, ammonium thioglycolate and monoethanolamine were added, mixed, cooled to 50 to 60° C., and poured into a 15x15 cm ² acrylic box. When the solution hardened, it was dried in an oven at 50° C. for 12 to 36 hours to obtain a film. The detailed content of the material in the film is shown in Table 4, and FIGS. 1 (a) and (b) are photographs of the prepared film containing ammonium thioglycolate and monoethanolamine.

2-3) Preparation of film containing cysteamine (C-film)

In order to prepare the film for hair perming of the present invention, 100 g of a mixed solution containing 1 wt% PVA solution, 1 wt% CMC solution, 0.1 to 0.5 g of PEG and 0.1 to 1 g of agarose is heated in a 700 W microwave oven for at least 2 minutes. After completely dissolving, a 10% cysteamine aqueous solution was added, mixed, cooled to 50 to 60° C., and poured into a 15x15 cm ² acrylic box. When the solution hardened, it was dried in an oven at 50° C. for 12 to 36 hours to obtain a film. The detailed contents of the substances in the film are given in Table 5, and Figures 1 (c) and (d) are photographs of the films containing cysteamine.

Example 2. Characterization of the film for perming hair

1) Measurement of film moisture absorption

In order to measure the moisture absorption of the film for hair perming of the present invention, the three films prepared in Example 1 were cut to the same size, 5 mL of water was added in a Petri dish, and then 10, 20, and 90 minutes at 30°C, respectively. After standing, the mass of the film was measured. Thereafter, the amount of the film remaining after drying at 50° C. was measured (mass residual rate).

The results are shown in Tables 1-3. Table 1 is a measure of the water absorption of the base film that does not contain a reducing agent, Table 2 is an M-film, Table 3 is a measurement of the water absorption of the T-M-film, respectively. Referring to Table 1, when only the agar of the base film Sample No. 2 was contained, more than 300% of moisture was absorbed, and it was confirmed that the residual ratio after drying was 99% or more. Sample No. 3 containing PVA and agar was confirmed to have a water retention rate of 500% and more than 93%. Sample No. 4 containing agar and PEG was confirmed to have a moisture content of 140% and a residual rate of 50% or more. Sample No. 7 containing agar and CMC in Table 2 was confirmed to have 2300% moisture remaining 96% or more. Sample No. 13 containing agar, CMC and PEG of Table 3 was confirmed to have more than 90% of remaining water 1900%, and it is determined that there is a loss due to peg when comparing 7 and 13. It is judged that the moisture absorption amount and the residual ratio remaining after dissolution appear differently depending on the type and content of the polymer material.

[Table 1]

[Table 2]

Referring to Table 3, in the case of M-film containing monoethanolamine, sample No. 10 containing agar, CMC and monoethanolamine (MEA) had 1800% moisture and a residual rate of 82% or more. It was confirmed that the moisture content of Sample No. 12 containing PVA, agar, CMC and MEA remained at a residual rate of 1000% and 90% or more.

[Table 3]

Referring to Table 4, in the case of the T-M-film containing MEA and ammonium thioglycolate (thiolate), the overall moisture absorption and mass retention rate were lower than that of the film containing only MEA. The moisture absorption of the film was 300 to 800%, showing a difference depending on the constituents, and the mass residual rate after 90 minutes was also 20 to 70%, showing a difference according to the constituents. The film for perm of the present invention is capable of dissolving the desired active ingredient while maintaining the film shape by adjusting the content according to the purpose of use.

[Table 4]

[Table 5]

2) Active ingredient extraction experiment

It was tested whether or not the reducing agent, which is an active ingredient, of the film for perming hair according to the present invention was extracted. After 1.5741 g of the film prepared from the component of Sample No. 21 was left in 50 mL of distilled water for 1 hour, the extracted primary extraction solution was removed, and the secondary extraction solution was recovered by leaving it in 50 mL of distilled water for 1 hour. The remaining film was dried at 50° C. to obtain 0.3347 g of a dry film. The primary extraction solution and the secondary extraction solution were mixed and evaporated to dryness. The dried material was dissolved in methanol, the dissolved material was filtered, and the filtrate was evaporated to dryness to recover 0.33 g of ammonium thioglycolate, and the extracted amount of ammonium thioglycolate was confirmed to be 83%. It was confirmed that the shape of the film was maintained even after the ammonium glycolate was released.

3) Perm treatment experiment

Perming was performed using the film for perming hair of the present invention. Films of sample Nos. 14, 16, 19, and 20 for hair perming prepared in Example 1 were used. Each film was cut into 7.5 x 5 cm ² , applied to the hair, rolled and wound on a rod at the same time, and then fixed using a rubber band. 4 to 5 mL of distilled water was sufficiently sprayed, a plastic cap was put on, and then left at 50° C. for 50 minutes. After that, a commercially available neutralizing agent was applied, left for 15 minutes, and washed to finish. The procedure steps and results are described in Figure 2. Permanent treatment photos of the film sample number are arranged in each column, and as a comparative example, a solution of commonly used perm paper and thiolate (ammonium thioglycolate) and monoethanolamine at the concentration contained in the film of the present invention After preparing and applying a reducing agent, a perm was performed on the hair. As a result, it was confirmed that the wave shape was very excellent in all the results of hair using the film for hair perming of the present invention.

In addition, for long hair, 15 x 5 cm ² of sample Nos. 14, 17, and 19 films were cut and permed. As a result, the wave shape was excellent as shown in FIG. 3 . After washing, each film sample number dried after washing and drying photos of hair that had been permed with each sample number and a photo after a week have elapsed are shown. For the film for perming hair of the present invention, the reducing agent of Comparative Example was directly applied to perm the hair showing an excellent wavy shape with relatively no difference from the permed hair, and it was confirmed that the wave was maintained even after one week.

Perm treatment was performed using a film using cysteamine as a reducing agent. For long hair, 15 x 5 cm ² , Sample Nos. 22, 23, 24, and 25 films of Table 5 were cut and the experiment was performed in the same manner as described above. The results are shown in FIG. 4 . It was confirmed that the film for perm hair containing cysteamine also had excellent wavy formation.

Claims (5)

A film for perming hair comprising a reducing agent for perming and a biodegradable polymer supporting the reducing agent,
The reducing agent is a mixture of thioglycolic acid and monoethanolamine or cysteamine, which cuts or cleaves the disulfide bond of the cystine amino acid in the keratin protein of the hair and reduces it to a cysteine amino acid to change the appearance of the hair,
The biodegradable polymer is a mixture of at least one selected from the group consisting of polyvinyl alcohol (PVA), polyethylene glycol (PEG) and carboxymethyl cellulose (CMC) and agarose,
The biodegradable polymer absorbs water and releases the reducing agent to the outside of the hair perm film,
Film for perming hair.
The method of claim 1,
The reducing agent is included in an amount of 0.01 to 50% by weight relative to 100% by weight of the biodegradable polymer,
Film for perming hair.
As a perm treatment method using the film for perming hair of claim 1 or 2,
The method comprises the steps of cutting the film to a length of hair;
attaching the cut film to the hair and fixing it to a molding member for perm;
supplying moisture to the hair fixed to the molding member;
a hair softening step of leaving the hair supplied with moisture for 30 to 60 minutes; and
a neutralizing step of applying a neutralizing agent, such as bromate or hydrogen peroxide solution, to the hair that has undergone the softening step and leaving it to stand for 10 to 20 minutes,
In the hair softening step, a reducing agent component is released from the film for hair permanent supplied with moisture to soften the hair,
A perm treatment method using a film for perming hair.
delete 4. The method of claim 3,
The hair softening step is carried out at 30 ℃ to 60 ℃,
A perm treatment method using a film for perming hair.

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