KR102094549B1 - Decolorze method for hair - Google Patents

Abstract

The present invention relates to a method for decoloring hair while filling the hair. The method for decoloring hair while filling the hair of the present invention comprises: a hair quartering step of dividing the hair into quartering without brushing the hair when the discoloration is progressed by analyzing the conditions of the scalp and hair; a protective cream applying step of applying a protective cream on the back of the hairline and ears after the hair quartering; a decoloring agent mixing step of mixing a decoloring agent; a decoloring agent applying step of applying the decoloring agent to hair; a decoloring process test step of testing a decoloring process after applying the decoloring agent; a decoloring agent removal step of removing the decoloring agent from the hair; a hair drying step of drying the hair when the decoloring agent is removed; and a final analysis step of the scalp and hair of finally analyzing the conditions of the scalp and hair.

Description

Decolorze method for hair}

The present invention relates to a method for decoloring hair filling, and more specifically, to a method for decoloring hair filling that can provide a more effective and reliable decolorizing effect than in the prior art.

Hair Coloring is the dyeing of hair, which is hair. Also called hair tint. While hair bleach makes the color of black hair lighter by bleaching, hair tints use a dye to change the color of hair in various ways.

In recent years, the color of hair dyes, which are conducted to create your own personality, varies. However, it is difficult to brighten hair dyed in black. Artificial pigments have stronger binding power than hair melanin pigments, so it is difficult to remove them only by discoloration.

It is used by mixing 1 agent of alkaline hair dye and 2 agents of weakly acidic hydrogen peroxide. The alkali agent swells the cuticle to help the pigment penetrate into the hair, and at the same time decomposes hydrogen peroxide.

When the alkali agent decomposes hydrogen peroxide, free radicals are generated. This free radical decomposes melanin pigments and oxidizes small molecules of oxidative dyes that have penetrated into the hair. Oxidation-polymerized dyes are large molecules in the hair and develop color to develop hair dye.

Pigments are chemically strong and hard. Particularly, in gray hair dyeing or dark-colored fashion dyeing, when oxidative dyes such as p-phenylenediamine are oxidized to become large molecules, the binding strength between molecules increases and the number of molecules increases.

On the other hand, the hair also contains a melanin pigment, which is a pigment originally present in the hair. The melanin pigment is a pigment that determines the color of the hair. If the amount of u-melanin is large, the color of the hair becomes black.

This melanin pigment is a large molecule formed by polymerization of the amino acid tyrosine, and its detailed structure is unknown. Melanin pigments are known to have weaker binding strength between molecules than oxidative dye-oxidized dyes.

Generally, in order to brighten the color of hair, a depigmenting agent (a brich agent) is used, but most of them are used in combination with hydrogen peroxide.

However, in the pharmacist method, the upper limit to which hydrogen peroxide can be blended is limited to a concentration of 6%, so its oxidizing power is not very strong.

The breeze agent is made of small molecules and decolorized by oxidative decomposition of the melanin pigment by free radicals generated when the alkaline agent decomposes hydrogen peroxide. For this reason, it is difficult to decompose and discolor the dye dyed with a hair dye as an ordinary breech agent.

Products used solely for the purpose of decomposing and discoloring dyes are called desalting agents. The demineralizer is a 10% to 30% addition of a more powerful oxidizing agent, persulfate or percarbonate, to the 6% concentration of hydrogen peroxide. In particular, the oxidizing power of persulfate is the strongest oxidizing agent after ozone, the strongest oxidizing agent.

In the case of a demineralizing agent, deoxygenation is performed by cutting into small molecules by cutting the bonds in the molecules of the dyes oxidized by various active molecules or active oxygen produced by the oxidizer.

Therefore, there is some effect of discoloration in bright colors, but it is difficult to raise the brightness of hair dyed black to the required level.

For this reason, some sites have repeated briches, but it is necessary to be careful as the oxidizing power is increased, so that the burden on the hair increases.

On the other hand, the biggest problem when discoloring is that the light protein, that is, the main chain and side chains collapse a lot.

Basically, if nutrients such as amino acids persist and combine for a long time, there is no great effect without the main chain and side chain. In particular, considering the fact that depigmentation is more dangerous than other procedures because it destroys the strongest peptide chain among hairs, the need for a new concept of depigmentation technology that is not known beforehand emerges.

Korea Patent Office Application No. 10-2000-0055710 Korea Patent Office Application No. 10-2001-0079596 Korea Patent Office Application No. 10-2015-0094027 Korea Patent Office Application No. 20-1998-0008287

An object of the present invention is to provide a hair-filling decoloring method that is more effective than the prior art and can provide a reliable decolorizing effect.

The object is, a preparation step for the progress of discoloration; Scalp and hair analysis step to analyze the condition of the scalp and hair; After analyzing the scalp and hair, if discoloration is progressed, the hair is divided into quarters without brushing the hair, and the hair is divided into quarters; After the hair compartment, a protective cream applying step of applying a protective cream to the hairline and the back of the ear; A bleaching agent mixing step of blending a bleaching agent; A decoloring agent applying step of applying the decoloring agent to hair; A depigmentation process test step of testing the decolorization process after applying the decolorant; A decoloring agent removing step of removing the decoloring agent from the hair; A hair drying step of drying the hair when the bleach is removed; And a scalp and hair final analysis step of finally analyzing the condition of the scalp and hair is achieved by a hair filling decolorization method characterized in that it comprises a.

After performing the depigmentation process test step, when further decolorization is required, the decolorant may be further blended to remix the decolorant to be applied to the hair, and further include an application step.

When performing the depigmenting agent application step, start from the back of the head, or start from the part where the hair is strong or look particularly black, but start 1/2 1/2 (1.2 cm) away from the scalp and apply to the end of the hair, and apply the decolorant to 8 inches ( 0.3cm).

The step of applying the bleaching agent may be repeated at least twice.

On the other hand, the object is, a preparation step for the progress of discoloration; Scalp and hair analysis step to analyze the condition of the scalp and hair; After analyzing the scalp and hair, if discoloration is progressed, the hair is divided into quarters without brushing the hair, and the hair is divided into quarters; After the hair compartment, a protective cream applying step of applying a protective cream to the hairline and the back of the ear; Thioglycolate 1.4-5.3 parts by weight, cysteine 1.4-5.3 parts by weight, 2-aminophenol 0.8-2.2 parts by weight, 4-aminophenol 0.8-2.2 parts by weight, resorcin 0.3-1.4 parts by weight, paraphenylenediamine 0.4- A decoloring agent mixing step of mixing a decoloring agent comprising a decoloring composition comprising 2.5 parts by weight, 1.5 to 2.9 parts by weight of monoethanolamine and 2.2 to 5.4 parts by weight of ammonia; A decoloring agent applying step of applying the decoloring agent to hair; A depigmentation process test step of testing the decolorization process after applying the decolorant; A decoloring agent removing step of removing the decoloring agent from the hair; A hair drying step of drying the hair when the bleach is removed; And the scalp and hair final analysis step of analyzing the condition of the scalp and hair is also achieved by a hair filling and decolorization method characterized in that it comprises a.

On the other hand, the above object is a decoloring agent applied to the decoloring method of the hair filling of claim 5, thioglycolate 1.4-5.3 parts by weight, cysteine 1.4-5.3 parts by weight, 2-aminophenol 0.8-2.2 parts by weight, 4-aminophenol 0.8 Also by the hair-filling decoloring composition, characterized in that it contains -2.2 parts by weight, resorcin 0.3-1.4 parts by weight, paraphenylenediamine 0.4-2.5 parts by weight, monoethanolamine 1.5-2.9 parts by weight, and ammonia 2.2-5.4 parts by weight Is achieved.

According to the present invention, it is possible to provide a more effective and reliable decolorization effect than the conventional one.

1 is a flow chart of a method for discoloring hair filling according to a first embodiment of the present invention.
2 is a flow chart of a method for discoloring hair filling according to a second embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice.

However, since the description of the present invention is only an example for structural or functional description, the scope of the present invention should not be interpreted as being limited by the examples described in the text.

For example, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea because the embodiments can be variously modified and have various forms.

In addition, the purpose or effect presented in the present invention should not be understood as being limited by the scope of the present invention because it does not mean that a specific embodiment should include all or only such an effect.

In this specification, this embodiment is provided to make the disclosure of the present invention complete, and to fully inform the scope of the invention to those skilled in the art to which the present invention pertains. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described in order to avoid obscuring the present invention.

Meanwhile, the meaning of the terms described in the present invention is not limited to the dictionary meaning, and should be understood as follows.

When a component is said to be "connected" to another component, it may be understood that other components may exist in the middle, although they may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the components, that is, "between" and "immediately between" or "adjacent to" and "directly neighboring to" should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" include the features, numbers, steps, actions, components, parts or components described. It is to be understood that a combination is intended to be present, and should not be understood as pre-excluding the presence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains, unless otherwise defined.

The terms defined in the commonly used dictionary should be interpreted to be consistent with the meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiment, the same reference numerals are assigned to the same components, and the description of the same reference numerals is omitted in some cases.

(First Example)

1 is a flow chart of a method for discoloring hair filling according to a first embodiment of the present invention.

Referring to this drawing, according to the method for discoloring hair filling according to the present embodiment, it is possible to provide a more effective and reliable decolorizing effect than in the prior art.

The method of discoloring hair filling according to this embodiment, which can provide such effects, is a preparation step for decolorization (S11), a scalp and hair analysis step (S12), a hair quartering step (S13), and a protective cream application step ( S14), depigmenting agent mixing step (S15), depigmenting agent applying step (S16), depigmenting process test step (S17), decolorant remixing and applying step (S18), decolorant removing step (S19), hair drying step (S20), scalp And may include a final hair analysis step (S21).

As will be described in detail below, in the case of the hair-filling and decoloring method according to the present embodiment, it is preferable to reduce the damage to hair more than twice by weakly performing it rather than performing it once.

The preparation step (S11) for decolorization is a process of preparing a customer who needs discoloration. To protect the customer's clothing at this stage, towels and dyed capes are worn.

The scalp and hair analysis step (S12) is a process of analyzing the condition of the scalp and hair. The analyzed data is recorded on the customer record card.

During this process, if the customer's scalp is damaged or irritated, do not dye it.

The hair segmentation step (S13) is a process of dividing the hair into quadrants without brushing the hair when discoloration proceeds after analyzing the scalp and hair as described above.

Protective cream application step (S14) is a process of applying the protective cream to the back of the hairline and ears.

The bleaching agent mixing step (S15) is a process of blending the bleaching agent. It is preferable to use the combined bleaching agent immediately, and thus, by using the bleaching agent immediately, the quality of the bleaching agent can be prevented from deteriorating.

The depigmenting agent applying step (S16) is a process of applying the depigmenting agent, which has been mixed in the depigmenting agent mixing step (S15), to the hair.

At this time, you can start from the back of the tofu, but if the hair is strong or there is a particularly black part, you can proceed from that part.

The beginning is applied 1 to 2 cm from the scalp to the end of the hair. When applying the decolorant, it is desirable to apply the decolorant at intervals of 0.1 to 0.5 cm. Then, the decolorant moves quickly and regularly from the divided and upper parts of the hair.

The decolorant application step (S16) may be repeated at least twice. In other words, continue to look at the hair and continue to apply the bleach to the required area.

The decolorization process test step (S17) is a process for testing the decolorization process. In this case, the first test may be performed 12 to 16 minutes before the designated bleaching time. You can proceed by wiping your hair with a wet towel.

On the other hand, if the hair is not sufficiently discolored in the test, the strength of the formulation may be increased or the duration of decolorization may be increased. Conversely, if it is too discolored, the strength of the formulation can be lowered or the duration of the process can be reduced.

In the depigmentation process test step (S17), the hair is broken, discolored, and the compounding reaction is carefully observed. If the color or condition is good, start discoloration.

After the recoloring agent is remixed, the applying step (S18) is a process of applying the colorant again to the hair by further mixing the colorant after the test is performed. At this time, it is preferable to apply the depigmenting agent close to the scalp, and proceed until the entire hair has a desired color.

If discoloration is no longer required in the depigmentation process test step (S17), the application step (S18) after remixing the decolorant may be omitted.

The decolorant removal step (S19) is a process of removing the decolorant. In this case, the decoloring agent can be removed by rinsing the whole with cold water.

In addition, when proceeding to the decolorant removal step (S19), it is preferable to use the shampoo gently as an acidic shampoo, and it is possible to avoid tangled hair. That is, it is preferable to neutralize the alkalinity of the hair acidically or to use a neutral rinse aid. If necessary, you can condition it again.

The hair drying step (S20) is a process of drying the hair with the decoloring agent removed. In this case, it is preferable to dry the hair with a towel, and it is preferable to dry it with a cold wind rather than a hot wind.

The final analysis step of the scalp and hair (S21) is a process of finally analyzing the condition of the scalp and hair. At this time, the analyzed data is also recorded on the customer record card and used as information later.

Hereinafter, the method for discoloring hair filling according to the present embodiment will be described in series.

First, preparations for decolorization proceed (S11). In other words, prepare customers who need discoloration. In this case, a towel and a dyeing cape are worn to protect the customer's clothes.

Next, the scalp and hair are analyzed (S12). That is, the condition of the scalp and hair is analyzed, and the analyzed data is recorded on the customer record card. When this process is in progress, if the customer's scalp is damaged or inflamed, do not dye it.

Next, after the scalp and hair analysis, if discoloration proceeds, without brushing the hair, the hair is divided into quarters (S13). Then, a protective cream is applied to the back of the hairline and ears (S14).

Next, a bleaching agent is blended (S15). As described above, it is preferable to use the depigmenting agent blended immediately, and the quality of the decoloring agent can be prevented from deteriorating by using the decoloring agent immediately.

Next, the depigmenting agent having been completed is applied to the hair (S16). At this time, you can start from the back of the tofu, but if the hair is strong or there is a particularly black part, you can proceed from that part.

The start is applied 1.2 cm from the scalp to the end of the hair. When applying the decolorant, it is desirable to apply the decolorant at an interval of 0.3 cm. Then, the decolorant moves quickly and regularly from the divided and upper parts of the hair. The decolorant application step (S16) may be repeated at least twice. In other words, continue to look at the hair and continue to apply the bleach to the required area.

Next, the decolorization process is tested (S17). In this case, the first test may be performed 12 to 16 minutes before the designated bleaching time. You can proceed by wiping your hair with a wet towel.

On the other hand, if the hair is not sufficiently discolored in the test, the strength of the formulation may be increased or the duration of decolorization may be increased. Conversely, if it is too discolored, the strength of the formulation can be lowered or the duration of the process can be reduced.

On the other hand, if further discoloration is required after the test is performed, the depigmenting agent is blended again and applied to hair (S18). At this time, it is preferable to apply the depigmenting agent close to the scalp, and proceed until the entire hair has a desired color. However, if discoloration is no longer required in the depigmentation process test step (S17), the application step (S18) after recoloring the decolorant may be omitted.

Next, the decoloring agent is removed (S19). In this case, the decoloring agent can be removed by rinsing the whole with cold water.

In addition, when proceeding to the decolorant removal step (S19), it is preferable to use the shampoo gently as an acidic shampoo, and it is possible to avoid tangled hair by hand. That is, it is preferable to neutralize the alkalinity of the hair acidically or to use a neutral rinse aid. If necessary, you can condition it again.

Next, the hair with the decoloring agent removed is dried (S20). In this case, it is preferable to dry the hair with a towel, and it is preferable to dry it with a cold wind rather than a hot wind.

Then, the condition of the scalp and hair is finally analyzed (S21). At this time, the analyzed data is also recorded on the customer record card and used as information later.

According to this embodiment acting on the basis of the structure as described above, it is possible to provide a more effective and reliable decolorization effect than the conventional one.

Particularly, when the decolorization method according to the present embodiment is applied, damage to peptides and cuticles can be minimized to improve clinic retention, and the risk of dissolving in perm after discoloration can be reduced.

In addition, color retention is improved after dyeing, and after discoloration, roughness and tangling can be minimized.

(Second example)

2 is a flow chart of a method for discoloring hair filling according to a first embodiment of the present invention.

Referring to this drawing, the hair filling and decoloring method according to this embodiment is also capable of providing a more effective and reliable decoloring effect than in the prior art, a preparation step for decolorization progress (S11), a scalp and hair analysis step (S12) , Hair division into four sections (S13), protective cream application step (S14), bleaching agent mixing step (S25), bleaching agent applying step (S16), bleaching process test step (S17), recoloring agent re-coating step (S18), Decolorant removal step (S19), hair drying step (S20), may include a scalp and hair final analysis step (S21).

In particular, while the other steps are the same as in the above-described embodiment, the decolorant compounding step (S25), that is, the specific method of blending the decolorant through the decolorizing composition mixed with various raw materials is different from the above-described embodiment.

Looking at this, the decoloring composition applied to the hair-filling decoloring method of the present embodiment is thioglycolate 1.4-5.3 parts by weight, cysteine 1.4-5.3 parts by weight, 2-aminophenol 0.8-2.2 parts by weight, 4-aminophenol 0.8-2.2 Parts by weight, resorcin 0.3 to 1.4 parts by weight, paraphenylenediamine 0.4 to 2.5 parts by weight, monoethanolamine 1.5 to 2.9 parts by weight, and ammonia 2.2 to 5.4 parts by weight.

Among the above materials, thioglycolate and cysteine serve to soften the bonding state of the coloring material or coating material by releasing -S = S- in the bonding structure to the hair.

When the content of thioglycolate and cysteine is less than 1.4 parts by weight, a desired degree of softening effect is not obtained, and if it is more than 5.3 parts by weight, the structure of the hair itself is destroyed and the damage is intensified, which is undesirable.

Aminophenols have a function of decolorizing a colored dye on the surface of the hair, so that 2-amino and 4-amino phenols are blended in the same amount to provide synergistic effects. When the content is less than 0.8 parts by weight, the original function cannot be exerted, and when the content is more than 2.2 parts by weight, the hair is severely damaged by the reducing property of phenol.

Resorcin is an amino acid component necessary for hair formation and provides the protection function of hair. When blending less than 0.3 parts by weight, the original protective function is not exerted, and when blended more than 1.4 parts by weight, the cost increases and the protective function as added is not exerted.

Hereinafter, the method for discoloring hair filling according to the present embodiment will be described in series.

First, preparations for decolorization proceed (S11). In other words, prepare customers who need discoloration. In this case, a towel and a dyeing cape are worn to protect the customer's clothes.

Next, the scalp and hair are analyzed (S12). That is, the condition of the scalp and hair is analyzed, and the analyzed data is recorded on the customer record card. During this process, if the customer's scalp is damaged or irritated, do not dye it.

Next, after the scalp and hair analysis, if discoloration proceeds, without brushing the hair, the hair is divided into quarters (S13). Then, a protective cream is applied to the back of the hairline and ears (S14).

Next, a bleaching agent is blended (S25). That is, thioglycolate 1.4-5.3 parts by weight, cysteine 1.4-5.3 parts by weight, 2-aminophenol 0.8-2.2 parts by weight, 4-aminophenol 0.8-2.2 parts by weight, resorcin 0.3-1.4 parts by weight, paraphenylenediamine 0.4 -2.5 parts by weight, 1.5 to 2.9 parts by weight of monoethanolamine, 2.2 to 5.4 parts by weight of ammonia to prepare a decolorant by mixing to make a composition.

As described above, it is preferable to use the depigmenting agent blended immediately, and the quality of the decoloring agent can be prevented from deteriorating by using the decoloring agent immediately.

Next, the depigmenting agent having been completed is applied to the hair (S16). At this time, you can start from the back of the head, but if the hair is strong or there is a part that looks relatively black compared to other parts, you can proceed from that part.

The start is applied 1/2 inch (1.2 cm) from the scalp to the end of the hair. When applying the decolorant, it is desirable to apply the decolorant at an interval of 8 inches (0.3 cm). Then, the decolorant moves quickly and regularly from the divided and upper parts of the hair. The decolorant application step (S16) may be repeated at least twice. In other words, continue to look at the hair and continue to apply the bleach to the required area.

Next, the decolorization process is tested (S17). In this case, the first test may be performed 12 to 16 minutes before the designated bleaching time. You can proceed by wiping your hair with a wet towel.

On the other hand, if the hair is not sufficiently discolored in the test, the strength of the formulation may be increased or the duration of decolorization may be increased. Conversely, if it is too discolored, the strength of the formulation can be lowered or the duration of the process can be reduced.

On the other hand, if further discoloration is required after the test is performed, the depigmenting agent is blended again and applied to hair (S18). At this time, it is preferable to apply the depigmenting agent close to the scalp, and proceed until the entire hair has a desired color. However, if discoloration is no longer required in the depigmentation process test step (S17), the application step (S18) after recoloring the decolorant may be omitted.

Next, the decoloring agent is removed (S19). In this case, the decoloring agent can be removed by rinsing the whole with cold water.

In addition, when proceeding to the decolorant removal step (S19), it is preferable to use the shampoo gently as an acidic shampoo, and it is possible to avoid tangled hair by hand. That is, it is preferable to neutralize the alkalinity of the hair acidically or to use a neutral rinse aid. If necessary, you can condition it again.

Next, the hair with the decoloring agent removed is dried (S20). In this case, it is preferable to dry the hair with a towel, and it is preferable to dry it with a cold wind rather than a hot wind.

Then, the condition of the scalp and hair is finally analyzed (S21). At this time, the analyzed data is also recorded on the customer record card and used as information later.

According to this embodiment acting on the basis of the structure as described above, it is possible to provide a more effective and reliable decolorization effect than the conventional one.

Even if this embodiment is applied, it is possible to provide a more effective and reliable decolorizing effect than the conventional one.

Particularly, when the decolorization method according to the present embodiment is applied, damage to peptides and cuticles can be minimized to improve clinic retention, and the risk of dissolving in perm after discoloration can be reduced. In addition, after the color treatment, the color retention power is improved, and after discoloration, the phenomenon of roughness and tangling can be minimized.

As described above, the present invention is not limited to the described embodiments, and it can be obvious to those skilled in the art that various modifications and modifications can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations belong to the claims of the present invention.

S11; Preparation step for decolorization progress S12; Analysis of scalp and hair
S13; Hair segmentation step S14; Protective cream application step
S15; Decolorant formulation step S16; Decolorant application step
S17; Decolorization process test step S18; Application step after remixing of bleach
S19; Decolorant removal step S20; Hair drying step
S21; Final analysis stage of scalp and hair

Claims (4)

delete When the discoloration is progressed by analyzing the condition of the scalp and hair, the hair is divided into quarters without brushing the hair, and the hair is divided into quarters;
After the hair compartment, a protective cream applying step of applying a protective cream to the hairline and the back of the ear;
Thioglycolate 1.4-5.3 parts by weight, cysteine 1.4-5.3 parts by weight, 2-aminophenol 0.8-2.2 parts by weight, 4-aminophenol 0.8-2.2 parts by weight, resorcin 0.3-1.4 parts by weight, paraphenylenediamine 0.4- 2.5 parts by weight, a monoethanolamine 1.5 to 2.9 parts by weight, ammonia 2.2 to 5.4 parts by weight of a decolorant compounding step of mixing the composition comprising;
A decoloring agent applying step of applying the decoloring agent to hair;
A depigmentation process test step of testing the decolorization process after applying the decolorant;
A decoloring agent removing step of removing the decoloring agent from the hair;
A hair drying step of drying the hair; And
Including the final analysis step of the scalp and hair to finally analyze the condition of the scalp and hair;
The step of applying the depigmenting agent starts from the back of the head or the part where the hair is strong or looks relatively black, but is applied from 1 to 2 cm from the scalp to the end of the hair,
The decoloring agent is applied at intervals of 0.2 to 0.5 cm,
After the depigmenting process test step, if further decolorization is required, further comprising a step of recoloring the depigmenting agent to be applied to the hair by re-mixing the depigmenting agent, further comprising a step of decoloring the hair filling.
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