JP7720539B2 - Hair dye or bleach products - Google Patents

Description

The present invention relates to hair dye or bleach products.

Conventionally, methods for dyeing or bleaching hair have been known that achieve their effects by using a mixture of multiple agents. Examples include hair dye compositions consisting of a first-agent composition containing an oxidative dye and an alkaline agent and a second-agent composition containing an oxidizing agent such as hydrogen peroxide, and bleach compositions consisting of a first-agent composition containing an alkaline agent such as aqueous ammonia and a second-agent composition containing an oxidizing agent.

Most commercially available hair dye or bleach products are designed for medium-length hair, and for people with long or thick hair, one set is simply not enough, leaving them dissatisfied with the dye or bleaching effect. One solution to this problem is to buy multiple sets of the same product, but mixing and preparing the hair dye or bleach composition multiple times and applying it to the hair can create a time lag, raising concerns that the dye or bleaching effect may not be uniform.

It is said that the average hair weight for medium-length hair is around 100 to 120 g, and for long hair it is around 130 to 180 g. Many commercially available hair dye or bleach products have a content of around 120 g of hair dye or bleach composition, and if the required amount of hair dye or bleach composition is set at 1 g per gram of hair, satisfactory hair dye or bleaching effects will not be achieved for people with long hair or a lot of hair. Therefore, there is a demand for hair dye or bleach compositions with increased content.

For example, one method of treating hair involves applying a milky or gel-like hair dye or bleach composition obtained by mixing a first-agent composition with a second-agent composition to the hair, lathering it on the hair, and then dyeing or bleaching the hair in the foamy state. This method has shown good results in terms of mixability and dischargeability from the container. (Patent Documents 1 and 2)

JP 2013-184965 A JP 2013-184968 A

However, increasing the amount of hair dye or bleach composition means increasing the amounts of the first-agent composition and second-agent composition, which could prevent thorough mixing in containers for medium-length hair. Furthermore, even if the amount of hair dye or bleach composition is increased, it is difficult to dispense from the container itself, and if a large amount remains, there is a concern that the actual amount used will remain the same as before. Many of the first-agent and second-agent compositions previously studied have been designed to improve mixability and usability when the total amount of the hair dye or bleach composition is around 120 g. Simply increasing the amounts of the first-agent and second-agent compositions previously studied could result in mixability and usability that are inferior to conventional compositions. Therefore, it is extremely difficult to increase the amount of hair dye or bleach composition while maintaining satisfactory hair dye or bleaching effects, and there is still room for improvement.

As a result of extensive research into solving the above problems, the inventors have discovered that they can provide a hair dye or bleach product comprising a hair dye or bleach composition composed of a first-agent composition containing an alkaline agent and a second-agent composition containing an oxidizing agent, and a container capable of receiving the first-agent composition containing the alkaline agent and the second-agent composition containing the oxidizing agent for mixing at the time of use, wherein the total amount of the hair dye or bleach composition is 150 to 210 g, the container comprises a container body and a cap, the container body is made of synthetic resin, has a circular or oval bottom, a bottom diameter of 54 to 62 mm, a height of 116 to 152 mm, a thickness of 0.2 to 2 mm, and a body opening diameter of 16 to 36 mm.

The present invention provides a hair dye or bleach product that has excellent mixability between the first and second agent compositions, allows the hair dye or bleach composition to be dispensed from the container body in the exact amount necessary, leaves only a small amount of hair dye or bleach composition remaining in the container body after use, and provides satisfactory hair dye or bleaching effects.

FIG. 2 is a front view showing the container of the embodiment. FIG. 2 is a plan view showing the container of the embodiment. A cross-sectional view showing the container of the embodiment as seen from line A-A' in Figure 2A.

The present invention will be described in detail below. Note that all content units are in mass% unless otherwise specified.

The hair dye or bleach composition according to the present invention is composed of a first-agent composition containing an oxidative dye and an alkaline agent and a second-agent composition containing an oxidizing agent, or a first-agent composition containing an alkaline agent and a second-agent composition containing an oxidizing agent, and these are mixed together before use.

From the viewpoints of mixability, ease of application, spreadability, and compatibility with hair, the hair dye or bleach composition of the present invention preferably contains an ionic surfactant, and more preferably contains a cationic surfactant and an anionic surfactant.

The first agent composition of the hair dye or bleach composition according to the present invention contains a cationic surfactant. This improves mixability, ease of use and spreadability during application, and compatibility with hair, allowing for even dyeing or bleaching of hair.

The cationic surfactant used in the present invention is not particularly limited, but examples include behenyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, lanolin fatty acid aminopropylethyldimethylammonium ethyl sulfate, and stearate diethylaminoethylamide, and the like. One or more selected from these may be contained. Among these, behenyltrimethylammonium chloride is preferred from the viewpoints of mixability, ease of use during application, spreadability, and compatibility with hair.

The content of the cationic surfactant used in the hair dye or bleach composition of the present invention is preferably 0.3 to 1.6%, and more preferably 0.4 to 1.2%. If the content of the cationic surfactant is less than 0.3% or more than 1.6%, the composition may become less compatible with the hair, be less usable when applied, spread easily, and not blend well with the hair, resulting in uneven dyeing or bleaching of the hair.

The first agent composition of the hair dye or bleach composition according to the present invention may contain an oxidation dye, which allows hair to be dyed.

The oxidation dyes used in the present invention refer to dyes used in oxidation hair dyes, such as dye intermediates and couplers.

The oxidation dyes used in the present invention are not particularly limited, but examples include paraphenylenediamine, toluene-2,5-diamine, ortho-aminophenol, para-aminophenol, meta-aminophenol, 5-amino-orthocresol, resorcinol, 2,6-diaminopyridine, 2,4-diaminophenoxyethanol, 1-naphthol, and salts thereof. Other dyes listed in the "Standards for Quasi-Drug Ingredients 2006 Integrated Edition" (published November 2013, Yakuji Nipposha) can also be used as appropriate. These dyes may be contained alone or in combination.

The first agent composition of the hair dye or bleach composition according to the present invention contains an alkaline agent, which enhances the hair dyeing or bleaching effect.

The alkaline agent used in the present invention is not particularly limited, but examples include monoethanolamine, diethanolamine, triethanolamine, ammonia, ammonium carbonate, potassium carbonate, sodium carbonate, ammonium bicarbonate, sodium bicarbonate, ammonium sulfate, arginine, etc., and the composition may contain one or more selected from these. Of these, monoethanolamine or ammonia is preferred from the perspective of hair dyeing or bleaching effects.

The content of the alkaline agent used in the hair dye or bleach composition of the present invention is preferably 0.06 to 4.5%. If the content of the alkaline agent is less than 0.06%, sufficient hair dyeing or bleaching effects may not be achieved. Furthermore, if the content of the alkaline agent exceeds 4.5%, significant damage to the hair may occur.

The second agent composition of the hair dye or bleach composition according to the present invention contains an anionic surfactant. This improves mixability, ease of use and spreadability during application, and compatibility with hair, allowing for even dyeing or bleaching of hair.

The anionic surfactant used in the present invention is not particularly limited, but examples include sodium cetyl sulfate, sodium lauryl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, polyoxyethylene lauryl ether sodium sulfate, polyoxyethylene lauryl ether triethanolamine sulfate, polyoxyethylene lauryl ether ammonium sulfate, polyoxyethylene lauryl ether phosphate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, sodium N-lauroylmethyl-β-alanine, sodium N-acyl-L-glutamate, and the like. One or more selected from these may be contained. Of these, sodium cetyl sulfate is preferred from the viewpoints of mixability, ease of use during application, spreadability, and compatibility with hair.

The content of the anionic surfactant used in the hair dye or bleach composition of the present invention is preferably 0.2 to 0.6%, and more preferably 0.24 to 0.56%. If the content of the anionic surfactant is less than 0.2% or more than 0.6%, the composition may become less compatible, less usable when applied, less spreadable, and less compatible with the hair, resulting in uneven dyeing or bleaching of the hair.

The second agent composition of the hair dye or bleach composition according to the present invention contains an oxidizing agent, which decomposes the melanin pigment contained in the hair and bleaches the hair.

The oxidizing agent used in the present invention is not particularly limited, but examples include hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, sodium bromate, etc., and the composition may contain one or more selected from these. Among these, hydrogen peroxide is preferred from the standpoint of bleaching power.

The content of the oxidizing agent used in the hair dye or bleach composition of the present invention is preferably 1.8 to 4.8%. If the content of the oxidizing agent is less than 1.8%, sufficient bleaching power may not be obtained. Furthermore, if the content of the oxidizing agent exceeds 4.8%, significant damage to hair may occur.

If the cationic surfactant and anionic surfactant used in the present invention are contained in the same agent, they may aggregate and become unstable over time. Therefore, it is preferable to contain them in separate compositions.

By containing the cationic surfactant and anionic surfactant used in the present invention in separate compositions, the viscosity can be easily increased when they are mixed, improving usability during application, spreadability, and compatibility with hair.

In addition to the above-mentioned ingredients, the hair dye or bleach composition of the present invention can contain various ingredients commonly used in cosmetics, quasi-drugs, pharmaceuticals, etc., as long as the effects of the present invention are not impaired. For example, direct dyes, acid dyes, basic dyes, HC dyes, higher alcohols, higher fatty acids, hydrocarbon oils, silicone oils, nonionic surfactants, lower alcohols, humectants, solvents such as polyhydric alcohols, water-soluble polymers, thickeners, antioxidants, UV absorbers, pH adjusters, chelating agents, preservatives, antibacterial agents, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, stabilizers, fragrances, animal and vegetable oils, vitamins, plant extracts, inorganic salts, etc., and these can be contained in one or more types depending on the purpose.

The total amount of the hair dye or bleach composition according to the present invention is preferably 150 to 210 g, more preferably 165 to 195 g. If the total amount of the hair dye or bleach composition is less than 150 g, the hair dyeing or bleaching effect may not be fully achieved for those with a larger amount of hair. Furthermore, if the total amount of the hair dye or bleach composition exceeds 210 g, the mixing of the first and second agent compositions may be impaired.

The container for use in the hair dye or bleach product according to the present invention comprises a container body and a cap.

The container body of the hair dye or bleach product according to the present invention can be made from a flexible synthetic resin.

The flexible synthetic resin used in the present invention includes low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET), and polyvinyl chloride (PVC), and one or more selected from these can be used. Among these, low-density polyethylene or high-density polyethylene is preferred from the standpoint of ease of removal from the container body and residual properties.

The shape of the bottom of the container body of the hair dye or bleach product according to the present invention is not particularly limited, but a circular or oval shape is preferred from the standpoint of mixing ease and ease of dispensing from the container body.

The body of the container body of the hair dye or bleach product according to the present invention is preferably formed as a cylindrical container with the same shape as the bottom. Among these, a circular or oval cylindrical container is preferred, as this makes mixing easier as it is easier to hold, and a container body without corners makes it less likely that the hair dye or bleach composition will remain in the container body.

When the bottom shape of the container body of the hair dye or bleach product according to the present invention is circular, the diameter of the bottom is preferably 54 to 62 mm, more preferably 56 to 60 mm, from the viewpoints of ease of dispensing from the container body and retention.

When the shape of the bottom of the container body of the hair dye or bleach product according to the present invention is oval, the diameter of the long side is preferably 82 to 90 mm, and the short side is preferably 38 to 46 mm, from the viewpoints of ease of removal from the container body and retention.

The height of the container body of the hair dye or bleach product according to the present invention is preferably 116 to 152 mm, more preferably 123 to 142 mm, from the viewpoints of ease of dispensing from the container body and residual properties.

The thickness of the container body of the hair dye or bleach product according to the present invention is preferably 0.2 to 2 mm, more preferably 0.5 to 1.5 mm, from the viewpoint of mixing efficiency and ease of dispensing from the container body.

The diameter of the opening of the container body of the hair dye or bleach product according to the present invention is preferably 16 to 36 mm, more preferably 21 to 31 mm, from the viewpoints of ease of dispensing from the container body and residual properties.

The void ratio of the container when the hair dye or bleach composition of the present invention is fully contained is preferably 17 to 41%, and more preferably 23 to 35%. If the void ratio of the container when the hair dye or bleach composition is fully contained is less than 17%, the first and second agent compositions may not mix well. Furthermore, if the void ratio of the container when the hair dye or bleach composition is fully contained is more than 41%, it may be difficult to dispense the hair dye or bleach composition from the container body.

The material of the cap used in the hair dye or bleach product according to the present invention is not particularly limited, but polypropylene (PP) can be used.

The shape of the cap used in the hair dye or bleach product according to the present invention is not particularly limited, but a circular shape is preferred from the standpoint of ease of fastening to the container body.

The cap used in the hair dye or bleach product according to the present invention is not particularly limited, but a detachable or hinged cap can be used.

The first agent composition according to the present invention is preferably filled into various containers such as plastic containers, tube containers, aerosol containers, and pouch containers, and stored until use.

The second agent composition according to the present invention is preferably filled into a container for mixing and stored until use.

The hair dye or bleach composition of the present invention is preferably used by transferring the entire amount of the first agent composition into a container filled with the second agent composition and mixing them at the time of use.

The viscosity of the hair dye or bleach composition according to the present invention is preferably 5,600 to 20,000 mPa·s, and more preferably 6,300 to 16,000 mPa·s. If the viscosity of the hair dye or bleach composition is less than 5,600 mPa·s, it may spill when dispensed from the container, reducing the amount applied to the hair and potentially resulting in an insufficient hair dyeing or bleaching effect. Furthermore, if the viscosity of the hair dye or bleach composition exceeds 20,000 mPa·s, the first and second agent compositions may not mix well, making it difficult to dispense from the container, and increasing the amount of residue remaining in the container, potentially resulting in an insufficient hair dyeing or bleaching effect.

In the present invention, the viscosity is measured by preparing the hair dye or bleach composition in a conventional manner, filling 120 g of the resulting hair dye or bleach composition into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), and measuring the viscosity using a B-type viscometer with a helical stand (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with an M4 rotor for 1 minute at a rotation speed of 12 rpm at 25°C.

From the standpoint of hair dyeing or bleaching effect, the hair dyeing or bleaching composition of the present invention preferably has a pH of 6 to 11.

In the present invention, the pH is adjusted by conventional methods, 120 g of the resulting hair dye or bleach composition is filled into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), and the pH is measured at 20°C using a glass electrode hydrogen ion concentration indicator (F-71: manufactured by Horiba, Ltd.).

The mixing ratio of the first and second agent compositions in the hair dye or bleach composition of the present invention is not particularly limited, but the first and second agent compositions are preferably mixed at a ratio of 2:1 to 1:4, more preferably 1:1 to 1:3, and are then mixed immediately before use.

The hair dye or bleach composition according to the present invention is preferably in the form of a milky lotion, from the viewpoints of ease of application to hair, ease of running fingers through hair when rinsing, and the condition of the hair after finishing.

In terms of spreading and compatibility with hair during application, it is preferable to apply the hair dye or bleach composition of the present invention by hand, rather than using a brush, comb, brush-type nozzle, etc.

It is preferable that the hair dye or bleach composition of the present invention does not foam even when massaged into the hair with the hands.

The present invention will be explained in more detail below with reference to examples, but these examples are not intended to limit the present invention in any way.

In the evaluation tests presented herein, the components and their amounts contained in the hair dye or bleach composition, as well as the material and size of the container, were varied. All units indicating the content of each component are in mass %, and these were prepared using standard methods. The resulting first-agent composition and second-agent composition were mixed at the time of use in the amounts and containers described in the Examples and Comparative Examples, and the evaluation tests were conducted using hair dye or bleach products obtained.

The materials used for the container bodies in the examples and comparative examples are low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polyethylene terephthalate (PET), and polyvinyl chloride (PVC), respectively.

The invention described in this specification was evaluated for "mixability," "ease of dispensing from the container," "residue," and "hair dyeing or bleaching properties."

In the evaluation tests presented in this specification, "mixability," "ease of dispensing from the container," and "residual properties" were evaluated by a panel of experts who conducted a comparative evaluation of each of the following steps: the first agent composition was transferred into a container filled with the second agent composition, the cap (made of polypropylene) was closed, and the container was shaken up and down 40 times to mix, the cap was removed, and an appropriate amount (approximately 20 g) was dispensed directly into the palm of the hand. This was repeated without straining the container, and when the amount dispensed into the palm of the hand was less than 15 g, the container was turned upside down and left to stand for 10 seconds.

In the evaluation tests shown in this specification, "hair dyeing or bleaching properties" were evaluated by a panel of experts who applied the resulting hair dyeing or bleaching composition to the hair of a hair test doll, left it on for 20 minutes, rinsed it with lukewarm water at 40°C, washed it thoroughly with shampoo, wiped it dry with a towel, and then dried it with a hair dryer. The amount of hair used for the hair test doll was 150 g.

Evaluation criteria for "mixability" ⊚: The first agent composition and the second agent composition are mixed very well. ◯: The first agent composition and the second agent composition are mixed well. △: The first agent composition and the second agent composition are mixed somewhat poorly. ×: The first agent composition and the second agent composition are mixed poorly.

Evaluation criteria for "ease of dispensing from the container body" ⊚: The hair dye or bleach composition can be easily dispensed from the container body and does not drip from the hand. ◯: The hair dye or bleach composition can be dispensed from the container body and does not drip from the hand. △: It is somewhat difficult to dispense the hair dye or bleach composition from the container body, or it can be dispensed but it drips slightly from the hand. ×: It is difficult to dispense the hair dye or bleach composition from the container body, or it can be dispensed but it drips from the hand.

Evaluation criteria for "residualness" ⊚: After the entire amount has been used, the amount of hair dye or bleach composition remaining in the container body is less than 10% of the total amount. ◯: After the entire amount has been used, the amount of hair dye or bleach composition remaining in the container body is 10% or more and less than 25% of the total amount. △: After the entire amount has been used, the amount of hair dye or bleach composition remaining in the container body is 25% or more and less than 40% of the total amount. ×: After the entire amount has been used, the amount of hair dye or bleach composition remaining in the container body is 40% or more of the total amount.

Evaluation criteria for "hair dyeing or bleaching" ◎: Evenly dyed or bleached all the way to the inside of the hair ○: Evenly dyed or bleached all the way to the inside of the hair △: Unevenly dyed or bleached only partially on the inside of the hair ×: Unevenly dyed or bleached on the inside of the hair

Details of the first agent composition are shown in Table 1. Details of the second agent composition are shown in Table 2.

In the first evaluation test, hair dye or bleach products were evaluated with various amounts of the first and second agent compositions mixed together and various void ratios of the container when the entire amount of hair dye or bleach composition was contained. Table 3 shows the composition of the hair dye or bleach product and the evaluation results.

In Examples 1 to 7, good results were obtained even when the mixing amounts of the first and second agent compositions and the void ratio of the container when the entire amount of hair dye or bleach composition was contained were varied.

In the second evaluation test, hair dye or bleach products with various container body materials, bottom shapes, bottom diameters, and heights were evaluated. Table 4 shows the configurations of the hair dye or bleach products and the evaluation results.

In Examples 8 to 19, good results were obtained even when the material of the container body, the shape of the bottom, the diameter and height of the bottom were changed in various ways.

In the third evaluation test, hair dye or bleach products with various thicknesses of the container body and various diameters of the opening of the body were evaluated. Table 5 shows the configurations of the hair dye or bleach products and the evaluation results.

In Examples 20 to 28, good results were obtained even when the thickness of the container body and the diameter of the body opening were varied.

Fourth Evaluation Test In the fourth evaluation test, hair dyeing or bleaching products with various viscosities of the hair dyeing or bleaching composition were evaluated. Table 6 shows the composition of the hair dyeing or bleaching product and the evaluation results.

In Examples 29 to 35, good results were obtained even when the viscosity of the hair dye or bleach composition was varied.

An example of this composition is given below. The first agent composition and second agent composition obtained in the following example were mixed in a 1:2 ratio for a total weight of 180 g, and the container used was the container of Example 3. The resulting hair dye or bleach product showed good results in terms of "mixability," "ease of dispensing from the container," "residue," and "hair dyeing or bleaching properties."

(Example 36)
<First agent composition>
Component content (mass%)
Behenyltrimethylammonium chloride 2.40
Methylpolysiloxane 2.00
Liquid paraffin 3.00
Polyoxyethylene cetyl ether (10 E.O.) 1.30
Polyoxyethylene cetyl ether (20 E.O.) 0.50
Polyoxyethylene cetyl ether (40 E.O.) 2.20
Paraaminophenol 0.20
Resorcinol 0.20
Cetyl alcohol 4.00
Stearyl alcohol 2.00
Ethanol 0.60
Almond oil 0.01
Grape seed oil 0.01
Fragrance 0.80
Concentrated glycerin 4.00
L-ascorbic acid 0.50
Sodium sulfite 0.50
Edetate tetrasodium tetrahydrate 0.20
Polychlorinated dimethyl dimethyl pyrrolidinium solution (41.5%) 1.00
Monoethanolamine liquid (80%) 7.00
Ammonia water (28%) 3.57
Mixed fruit extract 0.01
Hydrolyzed silk liquid 0.01
Purified water 63.99
Total 100.00
<Second agent composition>
Component content (mass%)
Sodium cetyl sulfate 0.60
Hydrogen peroxide (35%) 16.60
Cetyl alcohol 1.30
Propylene glycol 10.00
Hydroxyethanediphosphonic acid liquid 0.14
Phenoxyethanol 0.04
Diethylene glycol monoethyl ether 0.02
Phosphoric acid 0.04
Disodium hydrogen phosphate 0.10
Purified water 71.16
Total 100.00

(Example 37)
<First agent composition>
Component content (mass%)
Behenyltrimethylammonium chloride 2.40
Methylpolysiloxane 2.00
Liquid paraffin 3.00
Polyoxyethylene cetyl ether (10 E.O.) 1.30
Polyoxyethylene cetyl ether (20 E.O.) 0.50
Polyoxyethylene cetyl ether (40 E.O.) 2.20
2,4-diaminophenoxyethanol hydrochloride 0.24
Toluene-2,5-diamine 0.74
Meta-aminophenol 0.20
Resorcinol 0.32
Cetanol 4.00
Stearyl alcohol 2.00
Ethanol 0.60
Almond oil 0.01
Grape seed oil 0.01
Fragrance 0.30
Concentrated glycerin 4.00
L-ascorbic acid 0.50
Sodium sulfite 0.50
Edetate tetrasodium tetrahydrate 0.20
Polychlorinated dimethyl dimethyl pyrrolidinium solution (41.5%) 1.00
Monoethanolamine liquid (80%) 0.50
Mixed fruit extract 0.01
Hydrolyzed silk liquid 0.01
Purified water 73.46
Total 100.00
<Second agent composition>
Component content (mass%)
Sodium cetyl sulfate 0.60
Hydrogen peroxide (35%) 16.60
Cetyl alcohol 1.30
Propylene glycol 10.00
Hydroxyethanediphosphonic acid liquid 0.14
Phenoxyethanol 0.04
Diethylene glycol monoethyl ether 0.02
Phosphoric acid 0.04
Disodium hydrogen phosphate 0.10
Purified water 71.16
Total 100.00

(Example 38)
<First agent composition>
Component content (mass%)
Behenyltrimethylammonium chloride 2.40
Methylpolysiloxane 2.00
Liquid paraffin 3.00
Polyoxyethylene cetyl ether (10 E.O.) 1.30
Polyoxyethylene cetyl ether (20 E.O.) 0.50
Polyoxyethylene cetyl ether (40 E.O.) 2.20
Cetyl alcohol 4.00
Stearyl alcohol 2.00
Ethanol 0.60
Almond oil 0.01
Grape seed oil 0.01
Fragrance 0.80
Concentrated glycerin 4.00
Edetate tetrasodium tetrahydrate 0.50
Polychlorinated dimethyl dimethyl pyrrolidinium solution (41.5%) 1.00
Ammonia water (28%) 8.00
Mixed fruit extract 0.01
Hydrolyzed silk liquid 0.01
Purified water 67.66
Total 100.00
<Second agent composition>
Component content (mass%)
Sodium cetyl sulfate 0.60
Hydrogen peroxide (35%) 16.60
Cetyl alcohol 1.30
Propylene glycol 10.00
Hydroxyethanediphosphonic acid liquid 0.14
Phenoxyethanol 0.04
Diethylene glycol monoethyl ether 0.02
Phosphoric acid 0.04
Disodium hydrogen phosphate 0.10
Purified water 71.16
Total 100.00

The present invention provides hair dyeing or bleaching products that have excellent mixability between the first and second agent compositions, allow the hair dyeing or bleaching composition to be dispensed from the container body in the exact amount necessary, leave only a small amount of hair dyeing or bleaching composition remaining in the container body after use, and provide satisfactory hair dyeing or bleaching effects.

10: Container 11: Container body 12: Cap

Claims (1)

A hair dye or bleach product,
The hair dye or bleach product comprises:
a first agent composition containing an alkaline agent and a cationic surfactant , a second agent composition containing an oxidizing agent and an anionic surfactant , and a container that can receive the first agent composition and the second agent composition for mixing them at the time of use, wherein the first agent composition and the second agent composition constitute a hair dye or bleach composition;
the total amount of the hair dye or bleach composition is 165 to 195 g;
The hair dye or bleach composition is in the form of an emulsion,
the viscosity of the hair dye or bleach composition contained in the container is 6,300 to 16,000 mPa s;
The container comprises a container body and a cap,
The container body is
The material is a flexible synthetic resin,
The base is circular ,
The diameter of the bottom surface is 56 to 60 mm,
The height is 123 to 142 mm,
The thickness is 0.5 to 1.5 mm,
The diameter of the main body opening is 21 to 31 mm,
The hair dye or bleach product is characterized in that the container has a void ratio of 23 to 35% when the hair dye or bleach composition contained in the container is fully contained in the container.