JP2015083552A - Method of dyeing or decoloring hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of dyeing or decoloring hair which is excellent in applicability when applying the agent to the hair so that agent is easily spread over a whole head, and which can adheres the hair at the lower edge of the hair to each other after application to be capable of preventing a floating state of a bundle of hairs at the lower edge of the hair.SOLUTION: A method of dyeing or decoloring hair comprises the steps of: (1) mixing a first agent containing an alkali material and a second agent containing hydrogen peroxide in a container body of a non-aerosol foamer container to prepare mixed liquor; (2) attaching a non-aerosol foamer to the container body and discharging the mixed liquor prepared in the step (1) from the non-aerosol foamer container as foamy matter; (3) applying the foamy matter to the hair by hand; and (4) kneading the foamy matter on the hair with hand to increase viscosity of the foamy matter which is 3 times or more and 10 times or less as that of the foamy matter when discharged at the step (2).

Description

  The present invention relates to a method for dyeing or decoloring hair.

  Conventionally, liquid or cream-like hair dyes and hair bleaching agents have been widely used, but it is difficult for those who are not accustomed to apply them evenly to the hair. This is because the mixture to be applied to the hair is adjusted to a high viscosity so that the mixture does not fall off when left standing and is sufficiently adhered to the hair. This is because it is difficult to spread the agent sufficiently to the root. In particular, consumers themselves need to master skills such as blocking and matching mirrors to apply their own hair roots and back of their heads, and careful operation is required to apply them evenly. It takes time.

  Therefore, it has been proposed to simplify the hair dyeing operation by discharging the agent in the form of a foam. For example, a two-agent aerosol type or a one-agent non-aerosol type is known. It is recognized that these agents are easy to spread over a wide surface area on the hair because the agent is foamy. Unlike hair care bath products (shampoos, etc.), hair depigmenting agents and hair dyes are applied directly to dry hair, so moisture absorption from the agent into the hair and capillary action on the hair surface are obstructive factors. Difficult to spread evenly over a wide area. Therefore, the coating performance is an important product performance and consumer value in realizing uniform dyeing.

  However, in the two-agent aerosol type, the mixing ratio of the first agent and the second agent is not constant, and decoloration unevenness and dyeing unevenness are likely to occur. Metal pressure-resistant containers are oxidized and corroded by hydrogen peroxide. However, there is a problem that the internal pressure of the pressure vessel excessively increases due to the decomposition of hydrogen peroxide. In addition, since the one-agent non-aerosol type has no decolorization ability or weakness, it is difficult to increase the color change obtained by a single treatment, and when seeking vivid hair dyeing, it can be left for a long time after application, It is necessary to repeat the treatment, and there is a problem that the hair dyeing operation tends to be complicated.

  On the other hand, what discharges a 2 agent type hair dye or a decoloring agent composition in foam form from a non-aerosol type | mold former container is proposed (refer patent document 1). Also in this case, since the agent is foamy, it is easy to spread the agent over a wide surface area on the hair, it can be applied to the hair evenly, and it is recognized that no color unevenness occurs in the finish. Non-aerosol type two-component foam hair dye or depigmenting agent is a technology that makes it easy to spread throughout the hair by introducing a low-viscosity liquid foam that is easy to adjust to the hair. Compared to conventional dosage forms, Uniform whole dyeing has become much easier. This is a conventional two-agent aerosol type that mixes the foam of the first agent and the foam of the second agent after discharging the foam of the first agent and the second agent in a foam form from the former container. Compared to those, the mixing ratio is less likely to vary, and sufficient hair dyeing power or decoloring power can be obtained as compared with conventional one-component non-aerosol type. Furthermore, the thing which overcame the storage stability and shampoo fastness which were the subject is proposed (refer patent document 2).

  However, these non-aerosol type two-component foam hair dyes or depigmenting agents may be swallowed for the purpose of fixing the agent to the site of concern or root after application to the hair. Conventionally, the behavior of the foam after squeezing after application to the surface is hardly considered.

JP 2004-339216 A JP 2010-235581

  It is desirable that the hair dye and the hair bleaching agent be easily applied to the root part of the hair and the part to be worried about and can be fixed to such a part. However, as mentioned above, cream-like hair dyes or hair bleaching agents are adjusted to a high viscosity and thus have high adhesion to the hair, but it is difficult to spread the agent uniformly on the hair, and to the root of the hair. There is a problem that it is difficult to spread the agent sufficiently. On the other hand, the non-aerosol type two-component foam hair dye or decoloring agent uses a low-viscosity liquid foam, so it is easy to spread over the entire hair. Since the hairs on the hairline do not adhere to each other after application and the hair remains in a floating state, it cannot be said that the hairline part has sufficient dyeability.

  Thus, in the prior art, in order to satisfy the demand that it can be easily applied to the root part of the hair and the part to be worried about and can be fixed to such a part, the physical properties of the agent applied to the hair are intentionally set. There is nothing to consider changing.

  The present invention is applied after the application while taking advantage of the unique characteristics of the non-aerosol type two-component foam hair dye or decoloring agent that is excellent in application property in Patent Documents 1 and 2 and is easy to spread the agent over the entire head. The present invention relates to a method for dyeing or decoloring hair in which the foamed foam is brought into close contact with the hair at the hairline and the physical properties are changed so that the hair bundle at the hairline can be prevented from floating.

  In the non-aerosol type two-component foam hair dye or depigmenting agent, after applying the foam to the hair, the present inventors rub the foam by hand and increase the viscosity to a specific multiple of the viscosity at the time of discharge. It has been found that the above-mentioned problems can be solved by making them.

The present invention provides a method for dyeing or decoloring hair having the following steps (1) to (4).
(1) A step of preparing a mixed solution by mixing a first agent containing an alkaline agent and a second agent containing hydrogen peroxide in a container body of a non-aerosol foamer container;
(2) A step of discharging the mixed liquid prepared in step (1) as a foam from the non-aerosol foamer container after the non-aerosol foamer is attached to the container body;
(3) A step of applying the foam to hair using a hand;
(4) The process of rubbing the foam on the hair by hand and setting the viscosity of the foam to 3 to 10 times that when discharged in step (2)

  According to the hair dyeing or decoloring method of the present invention, it is easy to apply to the root part or anxious part at the time of application to the hair, and after application, the hairs in the hairline are brought into close contact with each other by the thickened foam. Therefore, the hair can be dyed or decolored with certainty from the tip of the hair to the root of the hairline.

[Alkaline agent]
The first agent contains an alkali agent. Alkaline agents such as ammonia and salts thereof; alkanolamines such as monoethanolamine, isopropanolamine, 2-amino-2-methylpropanol, 2-aminobutanol and salts thereof; alkanediamines such as 1,3-propanediamine and the like Salts: carbonates such as guanidine carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like. These alkaline agents may be used in combination of two or more, and the content thereof is preferably 0.05% by mass or more, more preferably 0.1% by mass in the mixed solution, from the viewpoint of sufficient hair dyeing and decoloring effect. Above, more preferably 0.2% by mass or more, and from the viewpoint of reducing hair damage and scalp irritation, it is 15% by mass or less, more preferably 10% by mass or less, more preferably 5% by mass or less in the mixed solution. is there.

〔hydrogen peroxide〕
The second agent contains hydrogen peroxide. The content of hydrogen peroxide in the second agent is preferably 1% by mass or more, more preferably 3% by mass or more, and preferably 9% by mass or less, more preferably 6% by mass or less. The content of hydrogen peroxide in the mixed solution of the first agent and the second agent is preferably 1% by mass or more, more preferably 2% by mass or more, and preferably 6% by mass or less, more preferably 5%. It is below mass%. The pH of the second agent is preferably 2 or more, more preferably 2.5 or more, and preferably 6 or less, more preferably 4 or less, in order to suppress the decomposition of hydrogen peroxide.
In this specification, pH (25 ° C.) is a value measured using pH-Meter F-51 manufactured by Horiba.

[Non-Aerosol Foamer Container]
In the present invention, the non-aerosol foamer container is a non-aerosol type container, and the mixed liquid of the first agent and the second agent is mixed with air without using a propellant and discharged in the form of foam. Means a container used for The non-aerosol foamer container includes a non-aerosol foamer and a container body. In this specification, a non-aerosol foamer container may be simply referred to as a former container, and a non-aerosol foamer may be simply referred to as a former. By using the former container, an effect of preventing scattering of the discharged agent can be obtained. In particular, non-aerosol containers can be manufactured at a lower cost than aerosol-type containers, the discharge speed can be easily adjusted, and they can be reused after a certain amount of processing. Since a propellant is unnecessary, it can be handled more safely in the distribution of products.

  As the former container, any container can be used as long as it is a non-aerosol type container having a foam discharge means, such as a known pump former container or a squeeze foamer container having a foam discharge means.

  The non-aerosol foamer has a foam-generating part such as a net. When the liquid mixture of the first agent and the second agent is dried and solidified to cause clogging, It is preferable to have a thin net from the viewpoint that the solidified material can be immediately dissolved to eliminate clogging. In this case, the net mesh is preferably 50 to 280 mesh, more preferably 90 to 250 mesh, and more preferably 130 to 220 mesh. By using a mesh net in this range, creamy foam can be generated. Further, as a material of such a mesh, preferably, nylon, polyethylene, polypropylene, polyester, Teflon (registered trademark), carbon fiber, stainless steel and the like can be mentioned, more preferably nylon, polyethylene, polypropylene, polyester, More preferably, it is nylon.

  In the non-aerosol former used in the present invention, at least one, preferably a plurality of such nets are disposed, and it is more preferable to dispose two such nets from the viewpoints of economy, foam stability, and the like. In this case, the mesh through which the liquid first passes is preferably coarser than the mesh through which the liquid passes next, or has the same roughness.

  In the former container, the parts that come into contact with the contents (the inner wall of the container, the inner wall of the foam discharge means, etc.) are made of a material that does not corrode with alkali and hydrogen peroxide and is permeable to oxygen generated by the decomposition of hydrogen peroxide. It is preferable.

[Step (1)]
In the hair dyeing or decoloring method of the present invention, as the step (1), a first agent containing an alkaline agent and a second agent containing hydrogen peroxide are mixed in a container body of a non-aerosol foamer container. And a step of preparing a mixed solution.

The pH of the mixed solution immediately after mixing (25 ° C.) is preferably 8 or more, more preferably 9 or more from the viewpoint of hair dyeing or decoloring effect, and preferably 12 or less, from the viewpoint of suppression of skin irritation. Preferably it is 11 or less, More preferably, it is 10.5 or less.
As the pH adjuster, in addition to the above alkaline agents, inorganic acids such as hydrochloric acid and phosphoric acid, organic acids such as citric acid, glycolic acid and lactic acid, phosphorous such as dipotassium dihydrogen phosphate, disodium monohydrogen phosphate, etc. Examples include acid salts.

  The viscosity (25 ° C.) of the mixed solution is preferably 1 mPa · s or more, more preferably 5 mPa · s or more, and further preferably 10 mPa · s or more, from the viewpoint of good dischargeability from a non-aerosol foamer container. Further, it is preferably 600 mPa · s or less, more preferably 300 mPa · s or less, and still more preferably 100 mPa · s or less.

  In the present invention, the viscosity of the liquid mixture (25 ° C.) is a B-type rotational viscometer, using rotor No. 1, and the rotational speed is 60 rpm, 100 to 200 mPa · s when the measurement object is 100 mPa · s or less Is measured at 30 rpm and 12 rpm for 200 mPa · s or more. The measurement is performed in order from the measurement with the largest number of revolutions, and the measurement is completed when the measurement can be performed without the display being shaken.

  By adjusting the viscosity of the liquid mixture of the first agent and the second agent within the above range, it is possible to realize a foam volume that is easy to apply, and to suppress dripping after the liquid mixture is applied to the hair. it can. Moreover, it becomes easy to squeeze when discharging a foamy substance with a squeeze foamer container, and it becomes easy to pump when discharging a foamy substance with a pump former. In order to adjust the viscosity of the mixed solution to the above-described range, a water-soluble solvent may be added, or the content and type of surfactants, polyols, higher alcohols, and the like may be appropriately adjusted.

  When preparing the mixed solution, each of the first agent and the second agent is filled in a container separate from the container body of the former container until use, and both agents are transferred to the container body at the time of use and mixed. However, one agent is filled in the container body of the former container and the other agent is filled in a separate container until use, and the other agent is transferred into the container body of the former container before use. You may make it enter. In this case, the second agent is preferably filled in a gas-permeable container in order to prevent the pressure in the container from rising due to oxygen generated by the decomposition of hydrogen peroxide. More preferably, a container made of a certain material (for example, polypropylene or polyethylene) is filled. On the other hand, in order to prevent the oxidation of the oxidation dye, the first agent needs to use a container that does not easily transmit oxygen.

[Step (2)]
In the hair dyeing or decoloring method of the present invention, the non-aerosol foamer is attached to the container body as the step (2), and then the mixture prepared in the step (1) is used as a foam from the non-aerosol foamer container. A step of discharging.

  From the viewpoint of covering the entire head with foam, the volume of the foam after discharge (before application) is preferably 900 mL or more, more preferably 1000 mL or more, and preferably 2000 mL or less, more preferably 1800 mL or less. More preferably, it is 1500 mL or less.

From the viewpoint of preventing liquid sag, the viscosity (25 ° C.) of the foam after discharge (before application) is preferably 4000 mPa · s or more, more preferably 5000 mPa · s or more, and further preferably 7000 mPa · s or more, From the viewpoint of ease of spreading, it is preferably 15000 mPa · s or less, more preferably 12000 mPa · s or less, and still more preferably 10000 mPa · s or less.
In the present invention, the viscosity (25 ° C.) of the foam is a value measured with a helical viscometer (TVB-10R manufactured by Toki Sangyo Co., Ltd.) (TC bar, measured at 10 rpm for 1 minute).

  The gas-liquid mixing ratio of the air and the mixed liquid in the foam after discharge (before application) is preferably 5 mL / g or more, more preferably from the viewpoint of ease of application of the foam to the hair and ease of application. Is 8 mL / g or more, preferably 40 mL / g or less, more preferably 30 mL / g or less.

  When using a pump former container as a non-aerosol foam container, foam is discharged by pushing the pump former with a palm. When using a squeeze foam container, the container body can be squeezed by hand. Foam can be discharged.

[Step (3)]
The method for dyeing or decoloring hair of the present invention has a step of applying a foam to hair using a hand as step (3).

  When the foam is applied to the hair by hand, since the liquid component contained in the foam is absorbed by the hair, the first foam applied to the hair tends to disappear. Therefore, in order to leave the foam on the hair, it is preferable to apply it twice or more, more preferably 3 to 5 times in the same place.

  From the viewpoint of covering the entire head with foam, the volume of the foam existing on the hair after application (before wrinkling) is preferably 200 mL or more, more preferably 250 mL or more, and even more preferably 300 mL or more. In addition, it is preferably 800 mL or less, more preferably 600 mL or less.

  From the viewpoint of preventing dripping, the viscosity (25 ° C.) of the foamy substance existing on the hair when it has been applied (before kneading) is preferably 7000 mPa · s or more, more preferably 9000 mPa · s or more, and even more preferably Is 10000 mPa · s or more, and preferably 50000 mPa · s or less.

  In the step (3), from the viewpoint of protecting the hand, it is preferable to apply the foam to the hair using a hand with a glove.

  Prior to step (3), it is preferable to comb the hair in advance. Thereby, in the following process (4), since it becomes difficult to entangle hair, a possibility that a liquid mixture may scatter can be reduced. Moreover, after combing hair, it is not necessary to perform the blocking operation generally used by application of the conventional hair dye or decoloring agent composition, and it is preferable not to perform the blocking operation. Thereby, operation after the following process (4) can be advanced smoothly.

[Step (4)]
In the method for dyeing or decoloring hair according to the present invention, as the step (4), the foam on the hair is rubbed by hand, and the viscosity of the foam is 3 to 10 times that when discharged in the step (2). The process includes the following steps. By this step (4), it is possible to obtain a foam composition that adheres to the hairline.

  The ratio of the foam viscosity after foaming (25 ° C.) to the viscosity (25 ° C.) when discharged in the step (2) is preferably from the viewpoint of improving the adhesion of the foam at the hairline. Is 4 times or more, and preferably 6 times or less.

In terms of specific viscosity, the viscosity (25 ° C) of the foamed product after kneading is preferably 20000 mPa · s or more, more preferably 25000 mPas from the viewpoint of improving the adhesion of the foamed product at the hairline. S or more, more preferably 30000 mPa · s or more, preferably 70000 mPa · s or less, more preferably 50000 mPa · s or less.
Here, when the viscosity of the foam after squeezing does not reach the above range, a desired viscosity range can be obtained by applying a thickener to the hair. Thereby, the adhesiveness to the hair of foam can be improved.

  After massaging the foam on the hair, the volume of the foam present on the hair is preferably 200 mL or more, more preferably 250 mL or more, and even more preferably 300 mL or more from the viewpoint of covering the entire head with the foam. Moreover, it is preferably 800 mL or less, more preferably 600 mL or less, and further preferably 580 mL or less.

  The viscosity of the foam can be further increased by increasing the time for massaging the foam on the hair. The time for massaging the foam on the hair is preferably 2 to 10 minutes, more preferably 3 to 10 minutes, still more preferably 5 to 10 minutes from the viewpoint of evaporating water and gradually increasing the viscosity.

  Moreover, after kneading the foam on the hair, it is possible to improve the adhesion of the foam at the hairline by pressing the hair at the hairline while pressing backward. By improving the adhesion at the hairline, the hair from the root of the hairline to the hair tip is dyed and uneven, and the hair dyeing or decolorization can be made uniform.

[Step (5)]
The hair dyeing or decoloring method of the present invention can have, as step (5), a step of bringing foams present on the hair to the hairline portion after step (4).

  By performing this step, it is possible to more effectively prevent the hairs at the hairline from coming into a floating state at the same time as the hairs at the hairline come into close contact with each other. As a result, the effect of the present invention that the hair can be uniformly dyed or decolored from the hair tip to the hairline can be further enhanced.

[Other processes]
The method for dyeing or decoloring hair of the present invention may further comprise a step of leaving for 3 to 60 minutes after the step (4) or (5), and a step of washing off the foam on the hair with water.

[Surfactant]
The mixed liquid of the first agent and the second agent can further contain a cationic surfactant, an anionic surfactant, an amphoteric surfactant, or a nonionic surfactant. These surfactants can be blended in one or both of the first agent and the second agent.

<Cationic surfactant>
As the cationic surfactant, a compound represented by the following general formula (1) can be used.

[Wherein, R ¹ , R ² , R ³ and R ⁴ independently represent a hydrocarbon group which may have a substituent, and one or more of R ¹ , R ² , R ³ and R ⁴ or Two have 8 to 36 carbon atoms, and the remainder has 1 to 7 carbon atoms. X ⁻ represents an anion. ]

  Examples of the hydrocarbon group include a linear or branched alkyl group, a linear or branched alkenyl group, an aryl group, and an aralkyl group. Examples of the substituent include a hydroxy group, an alkoxy group, an aryloxy group, Examples include an epoxy group, an amino group, a mono- or dialkylamino group, a trialkylammonium group, a fatty acid amide group, and a fatty acid ester group.

One or two (preferably one) of R ¹ , R ² , R ³ and R ⁴ is a linear or branched carbon group having 8 to 30 carbon atoms, more preferably 10 to 24 carbon atoms, and even more carbon atoms. It is preferably an alkyl group having 12 to 18 carbon atoms, and the remainder is preferably an alkyl group having 1 to 3 carbon atoms, further 1 or 2 carbon atoms, and further 1 carbon atom.

  Examples of the anion include chloride ion, bromide ion, iodide ion, methyl sulfate ion, ethyl sulfate ion, acetate ion, phosphate ion, sulfate ion, lactate ion, and saccharin ion. To chloride and bromide ions are preferred.

  As the cationic surfactant, monoalkyltrimethylammonium chloride and monoalkyltrimethylammonium bromide are preferable. Among them, stearyltrimethylammonium chloride (steartrimonium chloride), cetyltrimethylammonium chloride (cetrimonium chloride), lauryltrimethylammonium chloride ( Lauryltrimonium chloride) is more preferred.

  Two or more cationic surfactants can be used in combination, and can be contained in one or both of the first agent and the second agent. The content of the cationic surfactant in the mixed solution of the first agent and the second agent is preferably 0.05% by mass or more, more preferably from the viewpoint of foaming and applicability of the mixture of the first agent and the second agent. It is 0.2 mass% or more, More preferably, it is 0.4 mass% or more, Preferably it is 5 mass% or less, More preferably, it is 4 mass% or less, More preferably, it is 3 mass% or less.

<Anionic surfactant>
Anionic surfactants include sulfate surfactants such as alkyl sulfates and alkyl ether sulfates; carboxylic acid surfactants such as fatty acid salts, alkyl ether carboxylates, alkyl succinates or alkenyl succinate salts; alkyls Phosphate ester surfactants such as phosphates and alkyl ether phosphates; Sulfonic acid surfactants such as sulfosuccinates, isethionates, taurates, alkylbenzene sulfonic acids, α-olefin sulfonic acids, alkane sulfonic acids; Examples include amino acid derivative-type surfactants such as N-acyl glutamate.

  Among these, alkyl sulfates, polyoxyalkylene alkyl sulfates, fatty acid salts, and alkyl ether carboxylates are preferable from the viewpoint of foaming. Among these, the compound represented by the following general formula (2) or (3) is more preferable, and the compound represented by the general formula (2) is more preferable.

R ⁵ —O— (CH ₂ CH ₂ O) _n1 — (CH ₂ CH (CH ₃ ) O) _m1 —SO ₃ X ¹ (2)
R ⁶ —O— (CH ₂ CH ₂ O) _n2 — (CH ₂ CH (CH ₃ ) O) _m2 —COOX ² (3)

[In the formula, R ⁵ and R ⁶ are each a hydrocarbon group having 8 to 25 carbon atoms, n ¹ and n ² are each an average added mole number of 0 to 50, and m ¹ and m ² are each an average. The number of added moles is 0 to 50, and X ¹ and X ² are each an alkali metal or NH ₄ . ]

Each of R ⁵ and R ^{6 in} the general formulas (2) and (3) preferably has 10 to 24 carbon atoms, more preferably 12 to 22 carbon atoms, and still more preferably 12 to 18 carbon atoms. R ⁵ and R ⁶ are preferably a linear or branched alkyl group or an alkenyl group, and more preferably a linear alkyl group.

Each of n ¹ and n ^{2 in} the general formulas (2) and (3) is preferably 0.5 or more, more preferably 1 or more, and preferably 45 or less, more preferably from the viewpoint of foamability. 30 or less, more preferably 15 or less, and further preferably 10 or less.

Each of m ¹ and m ^{2 in} the general formulas (2) and (3) is preferably 30 or less, more preferably 10 or less, still more preferably 5 or less, and still more preferably, from the viewpoint of foamability. Preferably it is 0.

Each of X ¹ and X ^{2 in} the general formulas (2) and (3) is a cationic group that forms a salt. Examples of the alkali metal include alkali metals such as sodium and potassium, triethanolamine, and ammonium. Of these, sodium and potassium are more preferred, and sodium is still more preferred. Of these, sodium polyoxyethylene lauryl ether sulfate (sodium laureth sulfate) is preferable.

  Two or more anionic surfactants can be used in combination, and can be contained in one or both of the first agent and the second agent. The content of the anionic surfactant in the mixed solution of the first agent and the second agent is preferably 0.05% by mass or more, more preferably 0.2% by mass or more, and further preferably 0.5% by mass or more from the viewpoint of good foaming. Moreover, it is preferably 20% by mass or less, more preferably 18% by mass or less, and still more preferably 15% by mass or less.

  The mixed liquid of the first agent and the second agent preferably contains a cationic surfactant and an anionic surfactant from the viewpoint of maintaining the viscosity of the foam on the hair. By rubbing the foam on the hair by hand, the liquid in the foam is sheared while being absorbed by the hair. When an anionic surfactant and a cationic surfactant are present in the foam film, fine precipitates grow due to the interaction. This deposit accumulates at the gas-liquid interface such as a plateau border of bubbles, so that it is difficult to drain and the coalescence of the bubbles is hindered. And it is thought that the viscosity of the foam which raised by applying shearing force by stagnation is maintained by the precipitate which exists in this interface. When anionic surfactants and cationic surfactants are used in combination, increasing the amount of anionic surfactants or cationic surfactants increases the amount of precipitates, so that the viscosity of foam after foaming is further increased. Can do. In particular, the effect of increasing the anionic surfactant is great.

  The total content of the cationic surfactant and the anionic surfactant in the mixed solution of the first agent and the second agent is preferably 0.5% by mass or more, more preferably 1% from the viewpoint of good foam stability and foaming. % Or more, more preferably 2% by mass or more, further preferably 3% by mass or more, preferably 15% by mass or less, more preferably 9% by mass or less, and still more preferably 8.5% by mass or less.

  The mass ratio of the anionic surfactant to the cationic surfactant in the mixed solution of the first agent and the second agent (anionic surfactant / cationic surfactant) is preferably from the viewpoint of good foam stability and foaming. It is 0.01 or more, more preferably 0.1 or more, further preferably 0.5 or more, preferably 100 or less, more preferably 50 or less, still more preferably 30 or less, and further preferably 15 or less.

<Amphoteric surfactant>
Amphoteric surfactants include carbobetaines, amidebetaines, sulfobetaines, hydroxysulfobetaines, amidesulfobetaines, phosphobetaines, imidazo having 8 to 24 carbon atoms, alkyl groups, alkenyl groups or acyl groups. Examples thereof include linium-based surfactants, and among them, carbobetaine-based surfactants and sulfobetaine-based surfactants are preferable. Preferred amphoteric surfactants include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryldimethylaminoacetic acid betaine, lauryl hydroxysulfobetaine and the like. Two or more amphoteric surfactants can be used in combination. The content of the first agent and the second agent in the mixed solution is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and still more preferably 0.01%. It is at least 10% by mass, preferably at most 10% by mass, more preferably at most 5% by mass, still more preferably at most 3% by mass.

<Nonionic surfactant>
Nonionic surfactants include alkyl polyglucosides, polyoxyalkylene alkyl ethers, alkyl glyceryl ethers and the like. As the alkyl polyglucoside, those having 8 to 18, more preferably 8 to 14, particularly 9 to 11 carbon atoms of the alkyl group are preferable, and those in which the alkyl group is linear are preferable. The average degree of condensation of glucoside is 1 to 5, particularly 1 to 2. As the polyoxyalkylene alkyl ether, those in which the alkyl group has 10 to 22 carbon atoms, particularly 12 to 18 carbon atoms, are preferred, and those in which the alkyl group is linear are preferred. Among them, those having an average addition mole number of oxyethylene group of 1 to 40, particularly 4 to 30 are preferable. As the alkyl glyceryl ether, those in which the alkyl group has 8 to 18 carbon atoms, particularly 8 to 12 carbon atoms are preferable, and those in which the alkyl group is branched are preferable. Two or more nonionic surfactants can be used in combination. The content of the first agent and the second agent in the mixed solution is preferably 0.1% by mass or more, more preferably 1% by mass or more, and still more preferably. It is 5% by mass or more, preferably 30% by mass or less, more preferably 25% by mass or less, and still more preferably 20% by mass or less.

[Cationic polymer]
The mixed liquid of the first agent and the second agent can further contain a cationic polymer. The cationic polymer can be blended in either one or both of the first agent and the second agent. Examples of cationic polymers include dimethyldiallylammonium chloride / acrylic acid copolymers, dimethyldiallylammonium chloride / acrylamide copolymers, and dimethyldiallylammonium chloride / copolymers such as dimethyldiallylammonium chloride / acrylamide / acrylic acid copolymers. Can be mentioned. Among these, it is preferable to contain a polymer containing a diallyl quaternary ammonium salt as a structural unit.

  The polymer of diallyl quaternary ammonium salt is a polymer having a skeleton represented by the following general formula (4) or (5).

[In the formula, R ⁷ and R ⁸ may be the same or different, and are a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group (such as a phenyl group), a hydroxyalkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxy group. Represents an alkyl group or a carboalkoxyalkyl group, R ⁹ and R ¹⁰ may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, and X ⁻ represents an anion (chloride ion, Bromide ion, iodide ion, sulfate anion, sulfonate anion, methyl sulfate anion, phosphate anion, nitrate anion, etc.). ]

  The polymer of diallyl quaternary ammonium salt of the present invention preferably contains the structural unit represented by the general formula (4) or (5) in one molecule from the viewpoint of improving hair gloss, texture and fingering. It is preferable to contain 85 to 100 mol%, more preferably 90 to 100 mol%, still more preferably 95 to 100 mol%.

As the polymer of diallyl quaternary ammonium salt, a homopolymer of diallyl quaternary ammonium salt or a copolymer of diallyl quaternary ammonium salt and acrylic acid is preferable.
As a polymer of diallyl quaternary ammonium salt and acrylic acid, for example, those represented by the following general formula (6) or (7) are preferable.

[Wherein R ⁷ , R ⁸ , R ⁹ , R ¹⁰ and X ⁻ represent the same meaning as described above. x and y each represent an integer of 1 to 100. z represents an integer of 150 to 8,000. ]
The ratio of x to y (x: y) is preferably 80:20, more preferably 90:10, and still more preferably 95: 5.

  The weight average molecular weight of the cationic polymer is preferably 10,000 or more, more preferably 50,000 or more, and still more preferably 100,000 from the viewpoint of adsorbing to the hair and making it difficult to fall off during washing and rinsing and stabilizing the foam. From the viewpoint of good foam ejection properties, it is preferably 3,000,000 or less, more preferably 1,000,000 or less, and still more preferably 200,000 or less.

Here, the weight average molecular weight can be measured under the following conditions, for example, by gel permeation chromatography (GPC).
Moving bed: 50 mM LiBr, 1% CH ₃ COOH / ethanol: water = 3: 7
Column: TSK gel α-M (two in series)
Reference material: Polyethylene glycol

  The charge density of the cationic polymer is preferably 5.0 meq / g or more, more preferably 5.5 meq / g or more, still more preferably 6.1 meq / g or more, from the viewpoint of improving hair gloss, texture and fingering. From the viewpoint of the stability of the agent, it is preferably 6.5 meq / g or less.

  Specific examples of the diallyl quaternary ammonium salt polymer include: Merquat 100 (manufactured by Lubrizol, homopolymer of diallyl quaternary ammonium), Marquat 295, Marquat 280 (manufactured by Lubrizol, diallyl quaternary ammonium salt and acrylic acid. Copolymer).

  The content of the cationic polymer in the mixed solution is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.5% by mass or more, and preferably 20% from the viewpoint of sustaining the effect. It is at most 10% by mass, more preferably at most 10% by mass, still more preferably at most 5% by mass.

〔dye〕
When the present invention is used as a dyeing method, the first agent contains an oxidation dye intermediate or a direct dye.

(Oxidized dye intermediate)
As the oxidation dye intermediate, known precursors and couplers usually used in hair dyes can be used. Examples of the precursor include paraphenylenediamine, toluene-2,5-diamine, orthochloroparaphenylenediamine, N-phenylparaphenylenediamine, N, N-bis (hydroxyethyl) paraphenylenediamine, and 3-methyl-4-amino. Phenol, 2-hydroxyethylparaphenylenediamine, paraaminophenol, paramethylaminophenol, 4-amino-methcresol, orthoaminophenol, and salts thereof can be mentioned.

  Examples of the coupler include resorcin, 2-methylresorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 5-aminoorthocresol, metaphenylenediamine, orthoaminophenol, metaaminophenol, paraaminophenol, 2,4- Examples include diaminophenoxyethanol, 2,6-diaminopyridine, 2-methyl-5-hydroxyethylaminophenol, 2-amino-3-hydroxypyridine, and salts thereof.

  Two or more precursors and couplers may be used in combination, and the content of each of the precursor and the coupler is 0.01 to 5% by mass, and further 0.1 to 4% by mass in the mixed solution of the first agent and the second agent. preferable.

(Direct dye)
Examples of direct dyes include acid dyes, nitro dyes, disperse dyes, and basic dyes. More specifically, examples of the acid dye include blue No. 1, purple No. 401, black No. 401, orange color No. 205, red No. 227, red No. 106, yellow No. 203, acidic orange 3, etc., and nitro dyes As 2-nitro-p-phenylenediamine, 2-amino-6-chloro-4-nitrophenol, 3-nitro-p-hydroxyethylaminophenol, 4-nitro-o-phenylenediamine, 4-amino-3 -Nitrophenol, 4-hydroxypropylamino-3-nitrophenol, HC blue 2, HC orange 1, HC red 1, HC yellow 2, HC yellow 4, HC yellow 5, HC red 3, N, N-bis (2 -Hydroxyethyl) -2-nitro-p-phenylenediamine and the like, and disperse dyes include disperse purple 1, disperse blue 1, disperse black 9 and the like, and basic dyes include basic blue 99, Basic tea 16, basic tea 17, basic red 76, basic yellow 76, basic orange 31, basic red 51, and the like.

  Two or more direct dyes may be used in combination, or may be used in combination with an oxidation dye intermediate. Moreover, the content is 0.001-5 mass% in the liquid mixture of a 1st agent and a 2nd agent, Furthermore, 0.01-3 mass% is preferable.

(Oil agent)
From the viewpoint of stabilizing the foam of the liquid mixture to be discharged, either or both of the first agent and the second agent can further contain an oil agent. Such oils include hydrocarbons such as squalene, squalane, liquid paraffin, liquid isoparaffin, cycloparaffin; glycerides such as castor oil, cacao oil, mink oil, avocado oil, olive oil; beeswax, whale wax, lanolin, Waxes such as carnauba wax; isopropyl palmitate, isopropyl myristate, octyldodecyl myristate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, isononyl isononanoate, tridecyl isononanoate Esters such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearyl acid, isopalmitic acid and higher fatty acids; Chill alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, oleyl alcohol, 2-octyldodecanol, higher alcohols such as cetostearyl alcohol; Other isostearyl glyceryl ether, polyoxypropylene butyl ether, and the like. Of these, higher alcohols are preferable, and myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and oleyl alcohol are more preferable.

  The content of the oil agent in the mixed solution of the first agent and the second agent is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, still more preferably 0.05% by mass or more, and preferably 3% by mass or less. More preferably, it is 2.5 mass% or less, More preferably, it is 2 mass% or less.

〔silicone〕
In order to allow the foam to smoothly blend into the hair and / or to impart a high conditioning effect to the hair, either or both of the first agent and the second agent should further contain silicone within a certain range. You can also. Examples of the silicone include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, oxazoline-modified silicone elastomer, and the like, and emulsions in which these are dispersed in water using a surfactant. Of these, polyether-modified silicones, amino-modified silicones, and emulsions thereof are preferable because they can be stably dispersed in water without using a thickener.

  The content of silicones in the mixed solution of the first agent and the second agent is preferable in order to smoothly blend the foam into the hair without hindering foaming of the hair dye, and to give a high conditioning effect to the hair. Is 2% by mass or less, more preferably 1.5% by mass or less, still more preferably 1% by mass or less, and preferably 0.005% by mass or more, more preferably 0.01% by mass or more.

[Non-volatile hydrophilic solvent]
A non-volatile hydrophilic solvent can be further contained in one or both of the first agent and the second agent. This reduces irritation to the scalp due to evaporation of water from the liquid mixture and concentration of irritating components such as hydrogen peroxide while the foam of the liquid mixture is applied to the hair and left standing. be able to. As the non-volatile hydrophilic solvent, polyols and lower (C1-4) alkyl ethers thereof are preferable. As the polyols, those having 2 to 6 carbon atoms are preferable, and examples thereof include glycerin, diglycerin, propylene glycol, dipropylene glycol, 1,3-butanediol, ethylene glycol, diethylene glycol, isoprene glycol, sorbitol and the like. Examples of the lower alkyl ethers of the polyol include mono-lower alkyl ethers and poly-lower alkyl ethers (for example, di-lower alkyl ethers) of the aforementioned polyols. Of these, monomethyl ether or monoethyl ether of polyol is preferable, and specific examples include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, and the like. These can also use 2 or more types together.

  The content of the non-volatile hydrophilic solvent in the mixture of the first agent and the second agent is preferably 0.1% by mass or more, more preferably from the viewpoint of improving the effect of reducing scalp irritation and foam quality. 0.3 mass% or more, more preferably 0.5 mass% or more, more preferably 1 mass% or more, preferably 10 mass% or less, more preferably 5 mass% or less, still more preferably 3 mass% or less, still more preferably Is 2% by mass or less.

[Other optional ingredients]
In the present invention, in addition to the above components, other components usually used as cosmetic raw materials can be added. Such optional ingredients include animal and vegetable oils and fats, natural or synthetic polymers, protein derivatives, hydrolyzed proteins, amino acids, preservatives, chelating agents, stabilizers, antioxidants, plant extracts, herbal extracts , Vitamins, fragrances, ultraviolet absorbers and the like.

  In the present invention, the mixing ratio of the first agent containing an alkali agent and the second agent containing hydrogen peroxide is preferably 1: 4 to 4: 1 by mass ratio, more preferably 1: 3. ~ 2: 1, 1: 2 to 1: 1 are preferred.

  With respect to the embodiments described above, preferred aspects of the present invention will be further disclosed below.

<1> A method for dyeing or decoloring hair, comprising the following steps (1) to (4).
(1) A step of preparing a mixed solution by mixing a first agent containing an alkaline agent and a second agent containing hydrogen peroxide in a container body of a non-aerosol foamer container;
(2) A step of discharging the mixed liquid prepared in step (1) as a foam from the non-aerosol foamer container after the non-aerosol foamer is attached to the container body;
(3) A step of applying the foam to hair using a hand;
(4) The process of rubbing the foam on the hair by hand and setting the viscosity of the foam to 3 to 10 times that when discharged in step (2)

<2> The viscosity (25 ° C.) of the foam discharged in the step (2) is preferably 4000 mPa · s or more, more preferably 5000 mPa · s or more, further preferably 7000 mPa · s or more, and preferably Is 15000 mPa · s or less, more preferably 12000 mPa · s or less, and still more preferably 10000 mPa · s or less, <1>.

<3> The volume of the foam discharged in the step (2) is preferably 900 mL or more, more preferably 1000 mL or more, preferably 2000 mL or less, more preferably 1800 mL or less, and even more preferably 1500 mL or less. The dyeing or decoloring method according to <1> or <2>.

<4> The viscosity (25 ° C.) of the foam after being manually squeezed in the step (4) is preferably 20000 mPa · s or more, more preferably 25000 mPa · s or more, further preferably 30000 mPa · s or more, The dyeing or decoloring method according to any one of <1> to <3>, which is preferably 70000 mPa · s or less, more preferably 50000 mPa · s or less.

<5> The volume of the foam after being manually squeezed in the step (4) is preferably 200 mL or more, more preferably 250 mL or more, further preferably 300 mL or more, and preferably 800 mL or less, more preferably The dyeing or decoloring method according to any one of <1> to <4>, which is 600 mL or less, more preferably 580 mL or less.

<6> The viscosity (25 ° C.) of the foam after being manually squeezed in the step (4) is preferably 4 times or more the viscosity when discharged in the step (2), and preferably The dyeing or decoloring method according to any one of <1> to <5>, wherein is 6 times or less.

<7> The viscosity (25 ° C.) of the mixed solution prepared in the step (1) is preferably 1 mPa · s or more, more preferably 5 mPa · s or more, further preferably 10 mPa · s or more, and preferably The dyeing or decoloring method according to any one of <1> to <6>, which is 600 mPa · s or less, more preferably 300 mPa · s or less, and still more preferably 100 mPa · s or less.

<8> Preferably, the method according to any one of <1> to <7>, further comprising a step of bringing the foamy substance present on the hair to the hairline portion as the step (5) after the step (4). Dyeing or decoloring method.

<9> Preferably, the dyeing or decoloring according to any one of <1> to <8>, wherein the mixed liquid contains a cationic surfactant, an anionic surfactant, an amphoteric surfactant, or a nonionic surfactant. Method.

<10> The total content of the cationic surfactant and the anionic surfactant in the mixed solution is preferably 0.5% by mass or more, more preferably 1% by mass or more, further preferably 2% by mass or more, and further preferably 3% by mass. % Or more, preferably 15% by mass or less, more preferably 9% by mass or less, and still more preferably 8.5% by mass or less, according to <9>.

<11> The mass ratio of the anionic surfactant to the cationic surfactant in the mixed solution (anionic surfactant / cationic surfactant) is preferably 0.01 or more, more preferably 0.1 or more, and further preferably 0.5 or more. The dyeing or decoloring method according to <9> or <10>, preferably 100 or less, more preferably 50 or less, further preferably 30 or less, and still more preferably 15 or less.

<12> The content of the cationic surfactant in the mixed solution is preferably 0.05% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.4% by mass or more, and preferably 5% by mass or less. The hair dyeing or decoloring method according to any one of <9> to <11>, more preferably 4% by mass or less, and further preferably 3% by mass or less.

<13> The hair dyeing or decoloring method according to any one of <9> to <12>, wherein the cationic surfactant is preferably a compound represented by the following general formula (1).

[Wherein, R ¹ , R ² , R ³ and R ⁴ independently represent a hydrocarbon group which may have a substituent, and one or more of R ¹ , R ² , R ³ and R ⁴ or Two have 8 to 36 carbon atoms, and the remainder has 1 to 7 carbon atoms. X ⁻ represents an anion. ]

<14> The hair dyeing or decoloring method according to <13>, wherein the cationic surfactant is preferably at least one selected from the group consisting of stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, and lauryltrimethylammonium chloride.

<15> The content of the anionic surfactant in the mixed solution is preferably 0.05% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more, and preferably 20% by mass or less, More preferably, it is 18 mass% or less, More preferably, it is 15 mass% or less, The hair dyeing or decoloring method in any one of <9>-<14>.

<16> The hair dyeing or decoloring method according to any one of <9> to <15>, wherein the anionic surfactant is preferably a compound represented by the following general formula (2) or (3).
R ⁵ —O— (CH ₂ CH ₂ O) _n1 — (CH ₂ CH (CH ₃ ) O) _m1 —SO ₃ X ¹ (2)
R ⁶ —O— (CH ₂ CH ₂ O) _n2 — (CH ₂ CH (CH ₃ ) O) _m2 —COOX ² (3)
[In the formula, R ⁵ and R ⁶ are each a hydrocarbon group having 8 to 25 carbon atoms, n ¹ and n ² are each an average added mole number of 0 to 50, and m ¹ and m ² are each an average. The number of added moles is 0 to 50, and X ¹ and X ² are each an alkali metal or NH ₄ . ]

<17> The hair dyeing or decoloring method according to <16>, wherein the anionic surfactant is preferably sodium polyoxyethylene lauryl ether sulfate.

<18> The hair dyeing or decoloring method according to any one of <1> to <17>, preferably containing a cationic polymer in the mixed solution.

<19> The dyeing or decoloring method according to <18>, wherein the cationic polymer is preferably a polymer having a skeleton represented by the following general formula (4) or (5).

[In the formula, R ⁷ and R ⁸ may be the same or different, and are a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an aryl group (such as a phenyl group), a hydroxyalkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxy group. Represents an alkyl group or a carboalkoxyalkyl group, R ⁹ and R ¹⁰ may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, and X ⁻ represents an anion (chloride ion, Bromide ion, iodide ion, sulfate anion, sulfonate anion, methyl sulfate anion, phosphate anion, nitrate anion, etc.). ]

<20> The charge density of the cationic polymer is preferably 5.0 meq / g or more, more preferably 5.5 meq / g or more, further preferably 6.1 meq / g or more, and preferably 6.5 meq / g or less. <18> or <19> The dyeing or decoloring method described in <19>.

<21> The content of the cationic polymer in the mixed solution is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.5% by mass or more, and preferably 20% by mass or less. The dyeing or decoloring method according to any one of <18> to <20>, preferably 10% by mass or less, and more preferably 5% by mass or less.

<22> A foam composition obtained by the step (4) in the dyeing or decoloring method according to any one of <1> to <21>.

<23> Use of a two-component hair dye or a decoloring agent for use in the dyeing or decoloring method according to any one of <1> to <21>.

Examples 1-7 and Comparative Examples 1-2
The 1st agent of the composition shown in Table 1 and the 2nd agent (common to each example) shown in Table 2 were prepared, each enclosed in a container, and liquid temperature was 25 ° C in a 25 ° C room. Mixing ratio (mass ratio) of the first agent and the second agent is 1: 1.5, squeeze foamer container (Daiwa Seisakusha, volume 210mL, mesh roughness is 150 mesh mixing chamber, 200 mesh tip, air inlet channel The total opening area of the narrowest part was 0.35 mm ² and the inner diameter of the dip tube was φ1.7 mm), and the mixture was discharged in the form of foam.
Next, various evaluations were performed by the following methods, and the results are shown in Table 3.

<Operation on hair>
Operation 1 (Applying): The foam immediately after being discharged from the squeeze foamer container is placed on the palm, and applied to the wig (No. 755S manufactured by Beaulux, hair length of about 30 cm) using the hand. The foam was spread throughout the hair by repeating. Since the liquid component of the foam is absorbed by the hair, the first foam applied to the hair disappears. Therefore, in order to leave the foam on the hair, it is applied three times to the same place and a total of 80 g of the foam is applied. used.
Operation 2 (itching): The foam (80 g) applied on the wig was rubbed together with the hair on the wig for 3 minutes using the hand.

<Evaluation of applicability and adhesion>
[Evaluation of coating properties]
The applicability at the time of application in Operation 1 (ease of application, ease of conforming to hair) was evaluated. Evaluation was carried out by the following judgment criteria by visual observation of four panelists, and the average result was shown.
3: Can be easily blended into the roots easily with a hand. 2: The roots of the back of the head with a lot of hair may be difficult to blend in depending on the location. Leave behind

[Evaluation of adhesion]
In the state before operation 2 (before squeezing) and after operation 2 (after squeezing), the hair at the hairline of the wig is squeezed so that it can be pressed with a foam using a hand. The way of floating was evaluated. Evaluation was carried out by the following judgment criteria by visual observation of four panelists, and the average result was shown.
3: The hair comes in close contact with the wig without floating the hair bundle at the hairline 2: The hair is brought into close contact with the wig by repeatedly pressing and stroking it 5 times or more so that the hair bundle at the hairline does not float 1: There is a part where the hair bundle at the hairline is floating, and the hair is not in close contact

<Evaluation of foam (capacity / viscosity of foam)>
The foam volume and viscosity were measured for the foams in the following three stages. In addition, in the evaluation of these foams, the said operation 1 and 2 were performed separately from the said applicability | paintability and adhesive evaluation.
Foam before coating: The foam (80 g) immediately after being discharged from the squeeze foamer container in operation 1 was used.
Foam before massaging: Before operation 2, a foam scraped from the wig was used.
Foam after squeezing: After operation 2, the foam scraped from the wig was used.

[Measurement of foam volume]
All of the foam was transferred to a beaker and its volume was measured.

(Measurement of viscosity of foam)
The foam was transferred to a 50 mL beaker, and its viscosity (25 ° C.) was measured using a helical viscometer (TVB-10R manufactured by Toki Sangyo Co., Ltd.) (TC bar, measured at 10 rpm for 1 minute).

Claims (12)

A method for dyeing or decoloring hair, comprising the following steps (1) to (4).
(1) A step of preparing a mixed solution by mixing a first agent containing an alkaline agent and a second agent containing hydrogen peroxide in a container body of a non-aerosol foamer container;
(2) A step of discharging the mixed liquid prepared in step (1) as a foam from the non-aerosol foamer container after the non-aerosol foamer is attached to the container body;
(3) A step of applying the foam to hair using a hand;
(4) The process of rubbing the foam on the hair by hand and setting the viscosity of the foam to 3 to 10 times that when discharged in step (2)   The dyeing or decoloring method according to claim 1, wherein the foam (25 ° C.) discharged in step (2) has a viscosity (4000 ° C.) to 15000 mPa · s.   The dyeing or decoloring method according to claim 1 or 2, wherein the foam (25 ° C) after foaming by hand in step (4) has a viscosity (25 ° C) of 20,000 mPa · s or more and 70000 mPa · s or less.   The dyeing | staining or decoloring method in any one of Claims 1-3 whose capacity | capacitance of the foam after hand squeezing in a process (4) is 200 mL or more and 800 mL or less.   The dyeing | staining or decoloring method in any one of Claims 1-4 which has the process of bringing the foam which exists on hair to the part of the hairline as a process (5) after a process (4).   The hair dyeing or decoloring method according to any one of claims 1 to 5, wherein the mixed liquid contains a total of 0.5% by mass or more and 15% by mass or less of a cationic surfactant and an anionic surfactant. The hair dyeing or decoloring method according to claim 6, wherein the cationic surfactant is a compound represented by the following general formula (1).

[Wherein, R ¹ , R ² , R ³ and R ⁴ independently represent a hydrocarbon group which may have a substituent, and one or more of R ¹ , R ² , R ³ and R ⁴ or Two have 8 to 36 carbon atoms, and the remainder has 1 to 7 carbon atoms. X ⁻ represents an anion. ]   The hair dyeing or decoloring method according to claim 7, wherein the cationic surfactant is stearyltrimethylammonium chloride. The hair dyeing or decoloring method according to claim 6, wherein the anionic surfactant is a compound represented by the following general formula (2) or (3).
R ⁵ —O— (CH ₂ CH ₂ O) _n1 — (CH ₂ CH (CH ₃ ) O) _m1 —SO ₃ X ¹ (2)
R ⁶ —O— (CH ₂ CH ₂ O) _n2 — (CH ₂ CH (CH ₃ ) O) _m2 —COOX ² (3)
[In the formula, R ⁵ and R ⁶ are each a hydrocarbon group having 8 to 25 carbon atoms, n ¹ and n ² are each an average added mole number of 0 to 50, and m ¹ and m ² are each an average. The number of added moles is 0 to 50, and X ¹ and X ² are each an alkali metal or NH ₄ . ]   The hair dyeing or decoloring method according to claim 9, wherein the anionic surfactant is sodium polyoxyethylene lauryl ether sulfate.   The foam-like composition obtained by the process (4) in the dyeing | staining or decoloring method in any one of Claims 1-10.   Use of a two-component hair dye or a decoloring agent for use in the dyeing or decoloring method according to any one of claims 1 to 10.