CN112826758B - Kit for hair removal - Google Patents

Kit for hair removal Download PDF

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Publication number
CN112826758B
CN112826758B CN202011340186.7A CN202011340186A CN112826758B CN 112826758 B CN112826758 B CN 112826758B CN 202011340186 A CN202011340186 A CN 202011340186A CN 112826758 B CN112826758 B CN 112826758B
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agent
hair
acid
present
color former
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CN112826758A (en
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朴宰正
文孝丞
金种夹
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Amorepacific Corp
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Amorepacific Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/347—Phenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A61K8/447—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof containing sulfur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67—Vitamins
    • A61K8/676—Ascorbic acid, i.e. vitamin C
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/10—Preparations for permanently dyeing the hair
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/25—Kits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/51—Chelating agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/88—Two- or multipart kits
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/88—Two- or multipart kits
    • A61K2800/882—Mixing prior to application

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Cosmetics (AREA)

Abstract

The present invention relates to a kit for hair removal comprising a first agent and a second agent, the first agent comprising a reducing agent and a colour former, at least one of the first agent and the second agent comprising a chelating agent, the colour former comprising C 1 ‑C 6 An alkylresorcinol or a salt thereof, and the chelating agent comprises ethylenediamine-N, N' -disuccinic acid or a salt thereof. The kit for hair removal has not only excellent hair removal effect to lighten dyed hair but also prevents the hair from darkening again after hair removal.

Description

Kit for hair removal
Technical Field
The invention relates to a kit for hair removal.
Background
In general, as one of methods for artificially coloring hair, an oxidative hair dye is used to dye hair. The oxidative hair dye develops color by allowing dye to penetrate into the interior of hair and to bind to the hair by oxidation reaction.
A stripping agent is required when trying to color replace or make brighter the hair dyed as described above. The depigmenting agent does not remove natural melanin of hair like a depigmenting agent, but depigments artificial dyes in artificially colored hair by reduction, thereby lightening the hair.
After the treatment of the stripping agent on the dyed hair, the dye loses color due to the reduction of the dye, so that a seemingly good stripping effect appears, but the reduced dye remaining inside the hair is naturally oxidized with the lapse of time, so that the hair is darkened again. To solve these problems, a stripping agent containing a stronger reducing agent may be used, but irritation to the scalp and damage to hair are aggravated. In this regard, there is a need for developing a hair removal agent that can prevent the hair from darkening again by inhibiting the natural oxidation of the dye after removal.
[ Prior Art literature ]
[ patent literature ]
(patent document 1) korean patent publication No. 10-2012-0081240.
Disclosure of Invention
Technical problem
In one aspect, the object of the present invention is to provide a kit for the removal of hair which has an excellent removal of hair, which makes it possible to lighten the dyed hair and which also makes it possible to prevent the hair after removal from darkening again.
Technical proposal
In one aspect, the present invention provides a kit for depigmenting hair, the kit comprising a first agent comprising a reducing agent and a second agent, at least one of the first agent and the second agent comprising a chelating agent, the color former comprising C 1 -C 6 Alkyl resorcinol or a salt thereof, and the chelating agent comprises ethylenediamine-N, N' -disuccinic acid (EDDS) or a salt thereof.
In one exemplary embodiment, the dechroming may be a dechroming of an artificial dye for dyeing hair, which may include an aromatic amine.
In one exemplary embodiment, the reducing agent may include one or more selected from cysteine or a salt thereof, erythorbic acid or a salt thereof, ascorbic acid or a salt thereof, thioglycolic acid or a salt thereof, sulfite, bisulfite, thiosulfate, sodium formaldehyde sulfoxylate (sodium oxymethylene sulfoxylate), and sulfoxylate (hydrosulfite).
In one exemplary embodiment, the reducing agent may comprise ethanolamine thioglycolic acid (Ethanolamine thioglycolic acid).
In an exemplary embodiment, the reducing agent may be present in an amount of 3 wt% to 15 wt% based on the total weight of the first agent.
In an exemplary embodiment, the C 1 -C 6 The alkyl resorcinol may comprise methyl resorcinol, preferably the methyl resorcinol may be 2-methyl resorcinol.
In one exemplary embodiment, the color former may be present in an amount of 0.06 wt% to 0.9 wt% based on the total weight of the first agent.
In an exemplary embodiment, the chelating agent may be present in an amount of 0.06 wt% to 4.5 wt% based on the total weight of the first or second agent.
In one exemplary embodiment, in use, the first and second agents may be 1: mixing the first and second agents in a weight ratio of 0.5 to 2.
In one exemplary embodiment, the weight ratio of the color former and the chelating agent in the first agent may be 1:1 to 10.
In one exemplary embodiment, at least one of the first agent and the second agent may further comprise one or more selected from an antioxidant, a surfactant, a thickener, and a care agent.
Advantageous effects
In one aspect, the kit for hair removal according to the present invention not only has excellent hair removal effect, so that dyed hair becomes bright, but also prevents the hair after hair removal from becoming dark again.
Detailed Description
Hereinafter, the present invention will be described in detail.
In one aspect, the present invention provides a kit for hair removal comprising a first agent comprising a reducing agent and a colour former, and a second agent, at least one of the first agent and the second agent comprising a chelating agent.
In one embodiment, the reducing agent plays a role in the dechromatic effect of the dye for dyeing hair by the reduction, and the reducing agent may include one or more selected from cysteine or a salt thereof, erythorbic acid or a salt thereof, ascorbic acid or a salt thereof, thioglycolic acid or a salt thereof, sulfite, bisulfite, thiosulfate, sodium formaldehyde sulfoxylate (sodium oxymethylene sulfoxylate), and sulfoxylate (hydrosulfite), but is not limited thereto. Preferably, the reducing agent may comprise ethanolamine thioglycolic acid.
In one embodiment, the reducing agent may be present in an amount of 3 wt% to 15 wt% based on the total weight of the first agent. When the content of the reducing agent is less than 3% by weight, the dye for dyeing the hair cannot be sufficiently reduced, and when the content of the reducing agent is more than 15% by weight, irritation to the scalp and damage to the hair are aggravated. Specifically, the reducing agent may be contained in an amount of 3 wt% or more, 3.5 wt% or more, 4 wt% or more, 4.5 wt% or more, 5 wt% or more, 5.5 wt% or more, 6 wt% or more, 6.5 wt% or more, or 7 wt% or more, and 15 wt% or less, 14.5 wt% or less, 14 wt% or less, 13.5 wt% or less, 13 wt% or less, 12.5 wt% or less, 11.5 wt% or less, or 11 wt% or less, based on the total weight of the first agent.
In one embodiment, the couplers are used to prevent darkening of hair caused by re-oxidation of dyes present in the hair after exhaustion, such couplers may comprise C 1 -C 6 Alkyl resorcinol or a salt thereof. The C is 1 -C 6 The alkyl resorcinol may preferably comprise methyl resorcinol, more preferably may comprise 2-methyl resorcinol. The 2-methylresorcinol exhibits a light color compared with other couplers, and therefore, even if the dye present in the hair is oxidized again after the exhaustion, the color development can be effectively prevented from becoming dark.
In the present specification, "salt" means a salt according to an aspect of the present invention which is acceptable in cosmetics and has the activity required for parent compound. The salts may include, (1) are formed from mineral acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or acid addition salts (acid addition salt) formed with organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3- (4-hydroxybenzoyl) benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1, 2-ethane-disulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 4-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo [2, 2] -oct-2-ene-1-carboxylic acid, glucoheptonic acid, 3-phenylpropionic acid, trimethylacetic acid, t-butylacetic acid, dodecylsulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid, muconic acid, and the like; or (2) a salt formed by substitution of an acidic proton present in the parent compound.
In one embodiment, the color former may be present in an amount of 0.06 wt% to 0.9 wt% based on the total weight of the first agent. When the content of the color former is less than 0.06 wt%, the hair after the removal of the color is re-darkened, and when the content of the color former is more than 0.9 wt%, the irritation to the scalp is aggravated. Specifically, the content of the color former may be 0.06 wt% or more, 0.1 wt% or more, 0.15 wt% or more, 0.18 wt% or more, 0.2 wt% or more, 0.23 wt% or more, 0.25 wt% or more, 0.28 wt% or more, or 0.3 wt% or more, and 0.9 wt% or less, 0.85 wt% or less, 0.8 wt% or less, 0.75 wt% or less, 0.7 wt% or less, 0.65 wt% or less, 0.6 wt% or less, 0.55 wt% or less, 0.5 wt% or less, 0.45 wt% or less, or 0.4 wt% or less, based on the total weight of the first agent.
In one embodiment, the chelating agent serves to inhibit reoxidation of the dye reduced by the reducing agent, and such chelating agent may comprise ethylenediamine-N, N' -disuccinic acid (EDDS) or a salt thereof.
In one embodiment, the chelating agent may be present in an amount of 0.06 wt% to 4.5 wt% based on the total weight of the first or second dose. When the content of the chelating agent is less than 0.06 wt%, it is difficult to expect an effect of inhibiting oxidation of the dye, and when the content of the chelating agent is more than 4.5 wt%, irritation to the scalp is aggravated. Specifically, the chelating agent may be present in an amount of 0.06 wt% or more, 0.1 wt% or more, 0.15 wt% or more, 0.2 wt% or more, 0.3 wt% or less, 0.4 wt% or more, 0.5 wt% or more, 0.6 wt% or less, 0.7 wt% or more, 0.8 wt% or more, 0.9 wt% or more, 1 wt% or more, 1.1 wt% or more, 1.2 wt% or more, or 1.3 wt% or more, and 4.5 wt% or less, 4.4 wt% or less, 4.2 wt% or less, 4.1 wt% or less, 3.9 wt% or less, 3.8 wt% or less, 3.7 wt% or less, 3.6 wt% or less, 3.2 wt% or 2.3 wt% or less, 4.3.3 wt% or less, 3.3 wt% or 2.3 wt% or less, 4.3 wt% or 2.3 wt% or less, 4.3.3 wt% or less, or 2.3 wt% or less, or 2.3.3 wt% or less, or 2.3 wt% or more, or less, or more, or the total weight of the first agent or the second agent.
In one embodiment, the first and second agents may be used in a mixture of 1 by weight: 0.5 to 2, preferably 1:1 to 1.5, more preferably 1:1. if the weight ratio of the first agent to the second agent is outside the range, the effect of the depigmentation is reduced due to the reduction of the amount of the reducing agent when the ratio of the first agent is reduced, and the irritation to the scalp is increased when the ratio of the first agent is increased.
In one embodiment, the weight ratio of color former to chelating agent in the first agent may be 1:1 to 10, preferably 1:1 to 6, more preferably 1:1.5 to 5. When the weight ratio of the coupler and the chelating agent exceeds the range, the effect of preventing the hair after the dechroming from darkening again is reduced.
In one embodiment, at least one of the first agent and the second agent may suitably contain ingredients used in conventional stripping agents, such as antioxidants, surfactants, thickeners, perfumes, care agents, and the like, in addition to the ingredients, within a range that does not impair the effects of the present invention.
In one embodiment, the surfactant may comprise one or more selected from cationic surfactants, anionic surfactants, and nonionic surfactants. Further, as the thickener, a higher alcohol having 14 to 22 carbon atoms may be used alone or in combination, and nonionic and anionic polymers, paraffin wax, light liquid isoparaffin, and the like may be used. The conditioning agent may comprise one or more substances selected from cationic polymers, quaternary ammonium salts and silicon.
In one embodiment, the first and second agents may generally contain water in addition to the ingredients. As the water, purified water such as ion-exchanged water and distilled water is preferably used, and the content thereof is not particularly limited as long as the amount of each component of the stripping agent composition can be sufficiently dissolved or dispersed.
In one embodiment, the dechroming may be dechroming of artificial dyes for dyeing hair. The artificial dye may include an aromatic amine, for example, the aromatic amine may include one or more selected from the group consisting of o-aminophenol, p-aminophenol, m-aminophenol, p-phenylenediamine, toluene-2, 5-diamine hydrochloride, p-phenylenediamine hydrochloride, toluene-2, 5-diamine, p-phenylenediamine sulfate, p-methylaminophenol sulfate, o-aminophenol sulfate, p-aminophenol sulfate, toluene-2, 5-diamine sulfate, and p-phenylenediamine sulfate, but is not limited thereto. Preferably, the artificial dye may comprise p-phenylenediamine.
In another aspect, the present invention provides a composition for depigmenting hair comprising a reducing agent, a color former comprising C 1 -C 6 Alkyl resorcinol or a salt thereof, and the chelating agent comprises ethylenediamine-N, N' -disuccinic acid (EDDS) or a salt thereof, and the dechromatic is a dechromatic artificial dye for dyeing hair. Such a composition for hair removal may be in dosage form 1.
In one embodiment, the composition may include 3 to 15 wt% of the reducing agent, 0.06 to 0.9 wt% of the color former, and 0.06 to 4.5 wt% of the chelating agent, based on the total weight of the composition.
In one aspect, the present invention provides a use of the set for the depigmentation of artificial dyes in dyed hair. Such a dechroming may be a dechroming of artificial dyes for dyeing hair.
In one aspect, the present invention provides the use of a combination of a reducing agent, a colour former and a chelating agent in the preparation of a composition for depigmenting hair. The color former may comprise C 1 -C 6 The chelating agent may comprise ethylenediamine-N, N' -disuccinic acid (EDDS) or a salt thereof, and the reducing agent may be contained in an amount of 3 to 15% by weight based on the total weight of the composition, and the exhaustion may be exhaustion of an artificial dye for dyeing hair.
Hereinafter, the present invention will be described in more detail by way of examples. It will be understood by those skilled in the art that these examples are only for illustrating the present invention, and the scope of the present invention is not limited by these examples.
[ preparation example: preparation of hair-removing agent
Hair removal agents (unit: wt%) of examples 1 to 6 and comparative examples 1 to 8 were prepared according to the compositions shown in tables 1 and 2 below.
[ Table 1 ]
[ Table 2]
After adding each component to purified water at 75 ℃ and uniformly mixing in the composition ratios described in the above tables 1 and 2, cooling was performed to obtain a first agent and a second agent, followed by mixing at 1:1 and mixing the first and second agents in a weight ratio to prepare a hair removal agent.
Experimental example 1: evaluation of De-dyeing ability
To evaluate the exhaustion ability of examples and comparative examples, a first agent for hairdye having the composition shown in the following table 3 and a second agent for hairdye were mixed and coated on decolorized human hair, and left at 25 ℃ for 30 minutes. Then, after washing with shampoo and drying, it was left for 1 day to obtain dyed human hair.
[ Table 3 ]
The hair dyes of examples 1 to 6 and comparative examples 1 to 8 were applied to the dyed human hair, respectively, and after being left at 25 ℃ for 30 minutes, washed with shampoo and dried. After drying, the color change value dE1 generated by the treatment with the stripping agent was measured by a color meter (Hunterlab Labscan XE). dE is calculated using the following equation.
dE＝[(dL) 2 +(da) 2 +(db) 2 ] 1/2
In the above expression, dL is a change in the brightness of hair, da is a change in the red value of hair, and db is a change in the yellow value of hair.
The color change value dE2 after 24 hours from the treatment of the stripping agent was measured by a color meter after the treatment of the human hair treated with the stripping agent was left for 24 hours in a thermostat at 40 ℃, and the results are shown in table 4.
[ Table 4 ]
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative example 1
dE1 27.11 27.42 29.87 31.39 29.93 31.32 25.5
dE2 7.74 7.62 7.58 6.81 7.60 6.76 8.93
Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6 Comparative example 7 Comparative example 8
dE1 2.18 25.82 26.1 29.37 29.18 30.18 25.3
dE2 1.09 8.68 8.52 9.01 9.18 8.57 7.61
dE1 is a color change value generated by the stripping agent, and the larger the dE1 value is, the brighter the hair is, which means that the better the stripping effect is; dE2 is a color change value after 24 hours from the treatment of the depigmenting agent, and a smaller dE2 value indicates an excellent effect of preventing the hair from darkening again.
As shown in table 4, examples 1 to 6 containing EDDS have higher values of dE1 than comparative examples 1 and 8 containing no EDDS and comparative examples 3 and 4 containing a chelating agent different from EDDS, and thus it is found that the effect of lightening hair is excellent. Further, examples 1 to 6 containing 2-methylresorcinol have lower values of dE2 compared with comparative example 5, comparative example 6, and comparative example 7, which contain resorcinol or m-aminophenol as a coupler, and do not contain a coupler, and thus it is known that the effect of preventing hair from darkening again is excellent.
It was confirmed that comparative example 2 did not have a hair-lightening effect due to an excessively low content of the reducing agent (ethanolamine thioglycolic acid).
From these results, it is found that the examples have excellent hair lightening effects and also have a remarkable effect of preventing the hair from darkening again after the hair removal.

Claims (5)

1. A kit for hair removal comprising a first agent and a second agent, wherein,
in use, the first and second agents are administered in an amount of 1: mixing at a weight ratio of 0.5 to 2,
the first agent comprises a reducing agent and a color former, at least one of the first agent and the second agent comprises a chelating agent, the reducing agent comprises one or more substances selected from isoascorbic acid or salts thereof and thioglycolic acid or salts thereof, and the color former comprises C 1 -C 6 An alkylresorcinol or a salt thereof, the chelating agent comprising ethylenediamine-N, N' -disuccinic acid or a salt thereof,
the reducing agent is present in an amount of 3 wt% to 15 wt% based on the total weight of the first agent, the color former is present in an amount of 0.06 wt% to 0.9 wt% based on the total weight of the first agent, the chelating agent is present in an amount of 0.06 wt% to 4.5 wt% based on the total weight of the first agent or the second agent, and the weight ratio of color former to chelating agent in the first agent is 1:1 to 10.
2. Kit for the dechromatic dyeing of hair according to claim 1, characterized in that the dechromatic dyeing is a dechromatic dyeing of artificial dyes for dyeing hair.
3. Kit for hair removal according to claim 1, characterized in that C 1 -C 6 The alkyl resorcinol comprises methyl resorcinol.
4. A composition for hair removal, wherein,
the composition comprises a reducing agent, a color former, and a chelating agent,
the reducing agent comprises one or more substances selected from isoascorbic acid or salts thereof and thioglycolic acid or salts thereof, and the color former comprises C 1 -C 6 An alkylresorcinol or a salt thereof, the chelating agent comprising ethylenediamine-N, N' -disuccinic acid or a salt thereof,
the reducing agent is present in an amount of 3 wt% to 15 wt% based on the total weight of the composition, the color former is present in an amount of 0.06 wt% to 0.9 wt% based on the total weight of the composition, the chelating agent is present in an amount of 0.06 wt% to 4.5 wt% based on the total weight of the composition, and the weight ratio of the color former to the chelating agent is 1:1 to 10 of the total number of the components,
the dechroming is dechroming of artificial dyes for dyeing hair.
5. Use of a combination of a reducing agent, a coupler and a chelating agent in the preparation of a composition for hair removal, wherein,
the reducing agent comprises one or more substances selected from isoascorbic acid or salts thereof and thioglycolic acid or salts thereof,
the color former comprises C 1 -C 6 An alkyl resorcinol or a salt thereof,
the chelating agent comprises ethylenediamine-N, N' -disuccinic acid or a salt thereof,
the reducing agent is present in an amount of 3 wt% to 15 wt% based on the total weight of the composition, the color former is present in an amount of 0.06 wt% to 0.9 wt% based on the total weight of the composition, the chelating agent is present in an amount of 0.06 wt% to 4.5 wt% based on the total weight of the composition, and the weight ratio of the color former to the chelating agent is 1:1 to 10 of the total number of the components,
the dechroming is dechroming of artificial dyes for dyeing hair.
CN202011340186.7A 2019-11-25 2020-11-25 Kit for hair removal Active CN112826758B (en)

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JP2004149485A (en) * 2002-10-31 2004-05-27 Hoyu Co Ltd Method for dyeing hair and removing hairdye from hair
JP2005162681A (en) * 2003-12-03 2005-06-23 Hoyu Co Ltd Method for treating hair
JP2006288613A (en) * 2005-04-08 2006-10-26 Hoyu Co Ltd Application tool for destaining agent and destaining method using application tool for destaining agent
CN101340891A (en) * 2005-12-21 2009-01-07 朋友株式会社 Dye remover compositon

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