JP2019167337A - Two agent-type oxidative hair dye/bleach composition and hair dye/bleach method - Google Patents
Two agent-type oxidative hair dye/bleach composition and hair dye/bleach method Download PDFInfo
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- JP2019167337A JP2019167337A JP2019055222A JP2019055222A JP2019167337A JP 2019167337 A JP2019167337 A JP 2019167337A JP 2019055222 A JP2019055222 A JP 2019055222A JP 2019055222 A JP2019055222 A JP 2019055222A JP 2019167337 A JP2019167337 A JP 2019167337A
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- oil
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- CLBALUNQCMWJSU-UHFFFAOYSA-L sodium;hexadecyl sulfate;octadecyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCCCOS([O-])(=O)=O.CCCCCCCCCCCCCCCCCCOS([O-])(=O)=O CLBALUNQCMWJSU-UHFFFAOYSA-L 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- RUTSRVMUIGMTHJ-UHFFFAOYSA-M sodium;tetradec-1-ene-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCC=CS([O-])(=O)=O RUTSRVMUIGMTHJ-UHFFFAOYSA-M 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- DZKXJUASMGQEMA-UHFFFAOYSA-N tetradecyl tetradecanoate Chemical compound CCCCCCCCCCCCCCOC(=O)CCCCCCCCCCCCC DZKXJUASMGQEMA-UHFFFAOYSA-N 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- OULAJFUGPPVRBK-UHFFFAOYSA-N tetratriacontyl alcohol Natural products CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO OULAJFUGPPVRBK-UHFFFAOYSA-N 0.000 description 1
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 description 1
- DWKARHJHPSUOBW-UHFFFAOYSA-N trimethyl-[3-[(2e)-2-(3-methyl-5-oxo-1-phenylpyrazol-4-ylidene)hydrazinyl]phenyl]azanium;chloride Chemical compound [Cl-].CC1=NN(C=2C=CC=CC=2)C(O)=C1N=NC1=CC=CC([N+](C)(C)C)=C1 DWKARHJHPSUOBW-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-VBJOUPRGSA-N triricinolein Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/C[C@H](O)CCCCCC)COC(=O)CCCCCCC\C=C/C[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-VBJOUPRGSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
Description
本発明は、毛髪を酸化染毛する際に用いられる２剤式酸化染毛または脱色剤組成物、および当該組成物を用いた染毛または脱色方法に関する。 The present invention relates to a two-component oxidative hair coloring or decoloring composition used for oxidative hair coloring, and a hair coloring or decoloring method using the composition.
２剤式酸化染毛剤は、アルカリ剤や酸化染料を主成分として含む第１剤と、過酸化水素に代表される酸化剤を含む第２剤とから構成され、染毛施術時に、第１剤と第２剤を混合して用いられる。これらを混合した際に発生する酸化力により、毛髪のメラニンの破壊によるブリーチ作用と、酸化染料の重合作用による染料の発色との両作用が促進される。また、第１剤に酸化染料を含まないものは脱色剤として用いられる。
しかし、アルカリ剤や過酸化水素は共に人体にとって刺激物になり得る成分である。
The two-component oxidative hair dye is composed of a first agent containing an alkaline agent or an oxidative dye as a main component and a second agent containing an oxidant represented by hydrogen peroxide. The agent and the second agent are mixed and used. Oxidizing power generated when these are mixed promotes both the bleaching action due to the destruction of melanin in the hair and the dye coloring due to the polymerization action of the oxidation dye. Moreover, what does not contain an oxidation dye in the 1st agent is used as a decoloring agent.
However, both alkaline agents and hydrogen peroxide are components that can be irritating to the human body.
近年、ヘアカラー剤の染毛性や毛髪ダメージへの配慮から、アルカリ剤としてアンモニアを配合するケースが多い。アンモニアは、モノエタノールアミン等の有機アミンといった他のアルカリ剤に比べて低分子量である。そのため、アルカリ剤としてアンモニアを用いた場合、染毛性や脱色性は良好であるが、その一方で、揮発性が高いため刺激臭があったり、頭皮や皮膚への浸透度が高くヘアカラー施術の際にピリピリ感・チクチク感などの皮膚刺激（アレルギーとは異なる一時的刺激）が生じるという問題がある。 In recent years, there are many cases where ammonia is blended as an alkaline agent in consideration of the hair dyeing property and hair damage of a hair coloring agent. Ammonia has a lower molecular weight than other alkaline agents such as organic amines such as monoethanolamine. Therefore, when ammonia is used as the alkaline agent, the hair dyeing property and decoloring property are good, but on the other hand, it is highly volatile and has an irritating odor, and has a high degree of penetration into the scalp and skin, and hair color treatment. There is a problem that skin irritation (temporary irritation different from allergy) such as a tingling sensation or tingling sensation occurs.
このような問題に対し、従来からクリーム基剤の粒子径の調整や水酸基を有する重縮合ポリマー粒子の配合など、クリーム基剤の工夫による改善が試みられてきた。しかしながら、これらの方法ではアンモニア刺激臭は抑制されるものの、アルカリ剤および酸化剤に起因する上記ピリピリ感やチクチク感などの皮膚刺激の抑制効果は未だ不十分であった（例えば特許文献１および２）。 For such problems, attempts have been made to improve the cream base by adjusting the particle size of the cream base and blending polycondensation polymer particles having a hydroxyl group. However, although these methods suppress ammonia-stimulated odors, the effects of suppressing skin irritation such as the above-mentioned tingling sensation and tingling sensation caused by alkaline agents and oxidizing agents are still insufficient (for example, Patent Documents 1 and 2). ).
この他、植物エキス等の成分をヘアカラー剤に配合することで皮膚刺激の低減を図る試みもなされている。この方法は、損傷した皮膚のケアが主な目的であり、皮膚に対する刺激物の影響を積極的に防止することは意図していない。その結果、皮膚刺激の低減効果は未だ不十分である（例えば特許文献３）。 In addition, attempts have been made to reduce skin irritation by blending ingredients such as plant extracts into hair coloring agents. This method is primarily intended for the care of damaged skin and is not intended to actively prevent the effects of irritants on the skin. As a result, the effect of reducing skin irritation is still insufficient (for example, Patent Document 3).
更に他の方法として、ヘアカラー施術の事前処理として液状油を頭皮に塗布することにより、油性被膜による刺激成分が皮膚に直接付着することを妨げる方法も提案されている。しかしながら、この方法では、液状油の塗布がムラになったときには皮膚刺激が生じ易い、事前処理が必要となるため作業性が悪い、といった問題がある。 As another method, a method has been proposed in which liquid oil is applied to the scalp as a pre-treatment for hair coloring treatment to prevent the irritating component due to the oily film from directly attaching to the skin. However, this method has a problem that skin irritation is likely to occur when the application of liquid oil becomes uneven, and workability is poor because pretreatment is required.
上記のように油性成分による保護処理によりヘアカラー施術中の皮膚の一時的刺激を低減できることが知られている。これは、ヘアカラー剤に配合されるアルカリ剤（特にアンモニア）や過酸化水素などの刺激物が水溶性成分であり、事前に行う保護処理によって形成された油性被膜が皮膚・頭皮への作用を妨げているためと考えられる。 As described above, it is known that the temporary irritation of the skin during the hair color treatment can be reduced by the protective treatment with the oily component. This is because irritants such as alkaline agents (especially ammonia) and hydrogen peroxide that are blended into hair coloring agents are water-soluble components, and the oil-based film formed by the pre-protection treatment has an effect on the skin and scalp. It is thought to be because of hindering.
また、化粧品分野において一般的に用いられるエマルション（乳化物）として、油中水滴型のエマルション（Ｗ／Ｏ：ｗａｔｅｒ ｉｎ ｏｉｌ）が良く知られている。これは、連続相（外相）が油で構成されるエマルションであり、特に耐水性を要する場合に使用されることが多い。しかしながら、Ｗ／Ｏエマルションで構成されたヘアカラー剤は、アルカリ剤や酸化剤による皮膚刺激の抑制には有効であるが、ヘアカラー剤本来の特性である染毛性が乏しくなってしまうことが一般的に知られている（例えば特許文献４および５）。このような染毛性の低下は、Ｗ／Ｏエマルションの連続相が油性成分で構成されていることの結果として、酸化染料や酸化剤等の有効成分の媒体となる水の毛髪への浸透が妨げられるためと考えられる。 In addition, a water-in-oil emulsion (W / O: water in oil) is well known as an emulsion (emulsion) generally used in the cosmetics field. This is an emulsion in which the continuous phase (outer phase) is composed of oil, and is often used particularly when water resistance is required. However, a hair color agent composed of a W / O emulsion is effective in suppressing skin irritation caused by an alkaline agent or an oxidizing agent, but the hair dyeing property inherent in the hair color agent may be poor. It is generally known (for example, Patent Documents 4 and 5). Such a reduction in hair dyeing is caused by the penetration of water, which is a medium for active ingredients such as oxidation dyes and oxidants, into the hair as a result of the continuous phase of the W / O emulsion being composed of oily components. It is thought to be hindered.
そこで上記特許文献４では、アンモニアによる刺激臭を一層低減すると共に毛髪の明度を向上させる目的で、所定の各成分を含有する毛髪化粧料を開示している。ここで毛髪化粧料としての脱色第１剤の剤型は、油中水滴型乳化物又はＯ／Ｗ型乳化物であるが、優れた乳化安定性が得られ、脱色混合物の刺激臭をより一層低減することができるとともに毛髪の明度をより向上させることができることから、Ｏ／Ｗ型乳化物であることが好ましい旨記載されている。 Therefore, Patent Document 4 discloses a hair cosmetic containing predetermined components for the purpose of further reducing the irritating odor caused by ammonia and improving the lightness of the hair. Here, the dosage form of the first decolorization agent as a hair cosmetic is a water-in-oil emulsion or an O / W emulsion, but excellent emulsification stability is obtained, and the pungent odor of the decolorization mixture is further increased. It is described that an O / W emulsion is preferable because it can be reduced and the brightness of the hair can be further improved.
また上記特許文献５では、優れた発色力を保持しながら、アルカリ剤による刺激臭や目の痛みなどが低減された染色用組成物として、所定の各成分を含有する染色用組成物を開示している。具体的には、各成分が水相に存在する染料、アルカリ剤、酸化剤（過酸化水素など）を一部捕集する、すなわちＯ／Ｗエマルションを形成しながら水相の一部をエマルションの内相と外相に分布させることにより、上記課題を解決できることが記載されている。 In addition, Patent Document 5 discloses a dyeing composition containing predetermined components as a dyeing composition in which an irritating odor or eye pain caused by an alkaline agent is reduced while maintaining excellent coloring power. ing. Specifically, each component partially collects dyes, alkali agents, and oxidizing agents (hydrogen peroxide, etc.) present in the aqueous phase, that is, forms a part of the aqueous phase while forming an O / W emulsion. It is described that the above problem can be solved by distributing the internal phase and the external phase.
ヘアカラーにおけるピリピリ感・チクチク感などの皮膚刺激は、白髪染め（特に根元付近の白髪のみを染める場合などはリタッチカラーと呼ぶ。）を行う際に問題となる場合が多い。このような場合、皮膚刺激の低減と、染色性（濃く染まること）の両立が課題となる。 Skin irritation such as a tingling or tingling sensation in the hair color often becomes a problem when performing white hair dyeing (in particular, when only white hair near the root is dyed). In such a case, both reduction of skin irritation and dyeability (deep dyeing) are problems.
更に使用者（施術者および被施術者）の好みに応じて、様々な色味を楽しむこともヘアカラーの使用目的の一つである。このため、種々の酸化染料に対して色々な色味をバランス良く発色することが推奨される。 Furthermore, it is one of the purposes of use of hair color to enjoy various colors according to the user's preference (operator and patient). For this reason, it is recommended to develop various colors with good balance for various oxidation dyes.
本発明は上記事情に鑑みてなされたものであり、その目的は、十分な染毛性または脱色性が得られると共に、アルカリ剤および酸化剤に起因する毛髪の染毛または脱色施術時の皮膚刺激（ピリピリ感・チクチク感など）を低減することができる２剤式酸化染毛または脱色剤組成物、および当該組成物を用いた染毛または脱色方法を提供することにある。
更に好ましくは、種々の酸化染料に対してバランス良く発色可能な２剤式酸化染毛または脱色剤組成物、および当該組成物を用いた染毛または脱色方法を提供することにある。
The present invention has been made in view of the above circumstances, and its object is to obtain sufficient hair dyeing or depigmentation, as well as skin irritation during hair dyeing or decoloring treatment caused by an alkaline agent and an oxidizing agent. It is an object to provide a two-component oxidative hair coloring or decoloring agent composition capable of reducing (feeling tingling, tingling, etc.), and a hair coloring or decoloring method using the composition.
More preferably, it is to provide a two-component oxidative hair coloring or decoloring agent composition capable of coloring in a balanced manner with respect to various oxidation dyes, and a hair coloring or decoloring method using the composition.
上記課題を解決し得た本発明の構成は以下のとおりである。
［１］アルカリ剤を含有する第１剤と、酸化剤を含有する第２剤より構成される２剤式酸化染毛または脱色剤組成物であって、
前記第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる２剤式酸化染毛または脱色剤組成物。
［２］前記アルカリ剤は、アンモニア及び／またはその塩類である上記［１］に記載の２剤式酸化染毛または脱色剤組成物。
［３］前記アンモニア及び／またはその塩類の配合量が、２剤式酸化染毛または脱色剤組成物全体に対して０．１〜３質量％である上記［２］に記載の２剤式酸化染毛または脱色剤組成物。
［４］前記第１剤が水中油滴型（Ｏ／Ｗ）エマルションであり、前記第２剤が油中水滴型（Ｗ／Ｏ）エマルションである上記［１］〜［３］のいずれかに記載の２剤式酸化染毛または脱色剤組成物。
［５］上記［１］〜［４］のいずれかに記載された２剤式酸化染毛または脱色剤組成物を用いて染毛または脱色を行う方法。
The configuration of the present invention that has solved the above-described problems is as follows.
[1] A two-component oxidative hair coloring or decoloring composition comprising a first agent containing an alkaline agent and a second agent containing an oxidizing agent,
Of the first agent and the second agent, either one is an oil-in-water (O / W) emulsion and the other is a water-in-oil (W / O) emulsion. Agent composition.
[2] The two-component oxidative hair coloring or decoloring composition according to [1], wherein the alkaline agent is ammonia and / or a salt thereof.
[3] The two-component oxidation according to the above [2], wherein the amount of the ammonia and / or its salt is 0.1 to 3% by mass with respect to the entire two-component oxidative hair coloring or bleaching agent composition Hair dye or depigmenting composition.
[4] The above-mentioned first agent is an oil-in-water (O / W) emulsion, and the second agent is a water-in-oil (W / O) emulsion. The two-component oxidative hair coloring or decoloring agent composition described.
[5] A method of performing hair dyeing or decoloring using the two-component oxidative hair dyeing or bleaching composition described in any one of [1] to [4] above.
本発明によれば、染毛性または脱色性が良好であり、しかも染毛または脱色施術中に皮膚刺激（ピリピリ感・チクチク感など）が低減された染毛または脱色施術を提供することができる。
更に本発明によれば、種々の酸化染料に対して色々な色味をよりバランス良く発色可能な染毛施術も提供することができる。
According to the present invention, it is possible to provide a hair dyeing or decoloring treatment that has good hair dyeing or decoloring properties and that has reduced skin irritation (such as a tingling sensation or tingling sensation) during the hair dyeing or decoloring treatment. .
Furthermore, according to the present invention, it is also possible to provide a hair dyeing treatment that can develop various colors with a better balance with respect to various oxidation dyes.
本発明者は上記課題を解決するため、特に特許文献４や５を中心に検討を行った。前述したようにこれらの公報では、Ｗ／Ｏエマルションに対して否定的な見解を示しているが、本発明者の検討結果によれば、Ｗ／ＯエマルションではなくＯ／Ｗエマルションを基本骨格とした場合には皮膚刺激の低減効果が十分に発揮されないことが判明した。そこで更に検討を重ねたところ、意外にも、第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる組成物を用いれば、第１剤および第２剤の両方がＯ／Ｗエマルションで構成されたものに比べて、良好な染毛性や脱色性を維持しつつ、しかも皮膚刺激の低減効果が一層向上することを突き止めて本発明を完成した。 In order to solve the above-mentioned problems, the present inventor has studied mainly on Patent Documents 4 and 5. As described above, these publications show a negative view on the W / O emulsion. However, according to the results of the study by the present inventor, the O / W emulsion is used as the basic skeleton instead of the W / O emulsion. In this case, it was found that the effect of reducing skin irritation was not fully exhibited. As a result of further investigation, one of the first agent and the second agent is surprisingly one of oil-in-water (O / W) emulsion and the other is water-in-oil (W / O). Use of an emulsion composition reduces skin irritation while maintaining good hair dyeing and decoloring properties compared to the case where both the first agent and the second agent are composed of O / W emulsions. Ascertaining that the effect is further improved, the present invention has been completed.
このように本発明の組成物は、従来技術ではカラー剤として否定的であったＷ／Ｏエマルションを積極的に用い、しかも前述した特許文献４や５とは異なり第１剤と第２剤の乳化形態を限定、すなわち第１剤と第２剤の乳化形態が異なって構成されている点に特徴がある。これまで第１剤と第２剤との間で乳化形態を変えるという発想自体、全くなかった。従来は上記特許文献４や５のようにＷ／ＯエマルションではなくＯ／Ｗエマルションの乳化形態が好ましいとしており、Ｏ／Ｗエマルションという基本骨格の範囲内で構成成分を検討しているに過ぎなかったことを考慮すると、本発明は、全く斬新な発想の下に生み出された発明であると言える。 Thus, the composition of the present invention positively uses a W / O emulsion that was negative as a color agent in the prior art, and unlike the above-mentioned Patent Documents 4 and 5, the first agent and the second agent The emulsification form is limited, that is, the emulsification forms of the first agent and the second agent are different from each other. Until now, there was no idea of changing the emulsified form between the first agent and the second agent. Conventionally, it is said that an emulsified form of an O / W emulsion is preferable instead of a W / O emulsion as in Patent Documents 4 and 5 described above, and the constituent components are only studied within the scope of a basic skeleton called an O / W emulsion. In view of the above, the present invention can be said to be an invention that has been created based on a completely novel idea.
以下、本発明を詳しく説明する。 The present invention will be described in detail below.
本発明の２剤式酸化染毛または脱色剤組成物は、アルカリ剤を含有する第１剤と、酸化剤を含有する第２剤より構成される２剤式酸化染毛または脱色剤組成物であって、前記第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる点に特徴がある。これにより、良好な染毛性や脱色性を維持しつつ、皮膚刺激の低減効果に優れた組成物が得られる。
特に第１剤が水中油滴型（Ｏ／Ｗ）エマルションであり、第２剤が油中水滴型（Ｗ／Ｏ）エマルションである組成物が好ましく、これにより、特に染毛性および脱色性が一層高められる他、種々の酸化染料に対して色々な色味を、よりバランス良く発色することもできる。
The two-component oxidative hair coloring or decoloring agent composition of the present invention is a two-component oxidative hair coloring or decoloring agent composition comprising a first agent containing an alkaline agent and a second agent containing an oxidant. The first agent and the second agent are characterized in that either one is an oil-in-water (O / W) emulsion and the other is a water-in-oil (W / O) emulsion. . Thereby, the composition excellent in the reduction effect of skin irritation is obtained, maintaining favorable hair dyeing property and decoloring property.
In particular, a composition in which the first agent is an oil-in-water (O / W) emulsion and the second agent is a water-in-oil (W / O) emulsion is preferable. In addition to being further enhanced, various colors can be developed in a more balanced manner with respect to various oxidation dyes.
本発明において「２剤式酸化染毛または脱色剤組成物」とは、使用時に上記の第１剤と第２剤を混合して使用するものであり、第１剤中に酸化染料が配合されているものは「２剤式酸化染毛剤組成物」、第１剤中に酸化染料が配合されていないものは「２剤式脱色剤組成物」であり、本発明の組成物はこれらの両方を含む。 In the present invention, the “two-component oxidative hair coloring or bleaching agent composition” is used by mixing the first agent and the second agent at the time of use, and an oxidation dye is blended in the first agent. Is a “two-component oxidative hair dye composition”, and the one in which no oxidative dye is blended in the first agent is a “two-component decoloring agent composition”. Includes both.
また本発明において「染毛性に優れる」とは、後記する実施例の欄に示すように例えば白髪から濃い茶色に染毛できることを意味する。一方、本発明において「脱色性に優れる」とは、後記する実施例の欄に示すように例えば黒髪から黄みの茶色に脱色できることを意味する。 Further, in the present invention, “excellent in hair dyeability” means that, for example, white hair can be dyed to dark brown as shown in the column of Examples described later. On the other hand, in the present invention, “excellent in decolorization” means that, for example, black hair can be decolored to yellowish brown as shown in the column of Examples described later.
上述したように本発明の組成物は、酸化染毛剤には不向きとされるＷ／Ｏエマルションを用い、しかも第１剤および第２剤の乳化形態がそれぞれ異なる点に特徴があり、第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる。具体的には本発明の組成物は、Ｏ／Ｗエマルションの第１剤とＷ／Ｏエマルションの第２剤、またはＷ／Ｏエマルションの第１剤とＯ／Ｗエマルションの第２剤のいずれかで構成される。Ｏ／Ｗエマルションは連続相（外相）が水となる乳化形態であるのに対し、Ｗ／Ｏエマルションは連続相（外相）が油である。これらの乳化形態は、電気伝導度を測定することによって確認できる。具体的には、電気テスターを用いて電流が流れるか否かを測定したとき、電流が流れれば「Ｏ／Ｗエマルション」であることが確認される(連続相が水および水溶性成分で構成されるため電流
が流れる)。これに対し、電流が流れなければ「Ｗ／Ｏエマルション」であることが確認
される(連続相が油で構成されているため電流が流れない)。
As described above, the composition of the present invention uses a W / O emulsion that is not suitable for an oxidative hair dye, and is characterized in that the emulsified forms of the first agent and the second agent are different from each other. One of the agent and the second agent is an oil-in-water (O / W) emulsion, and the other is a water-in-oil (W / O) emulsion. Specifically, the composition of the present invention is either an O / W emulsion first agent and a W / O emulsion second agent, or a W / O emulsion first agent and an O / W emulsion second agent. Consists of. The O / W emulsion is an emulsified form in which the continuous phase (outer phase) is water, while the W / O emulsion is oil in the continuous phase (outer phase). These emulsified forms can be confirmed by measuring electrical conductivity. Specifically, when an electric tester is used to determine whether or not an electric current flows, it is confirmed that the electric current flows is an “O / W emulsion” (the continuous phase is composed of water and a water-soluble component). Current will flow). On the other hand, if no current flows, it is confirmed to be a “W / O emulsion” (current does not flow because the continuous phase is composed of oil).
上記第１剤を染毛剤として使用する場合の基本構成は、アルカリ剤の他、酸化染料、油性成分、および界面活性剤である。必要に応じて、溶剤、安定剤、コンディショニング成分、香料、エキス類、ｐＨ調整剤などの添加剤を加えることができる。なお上記第１剤を脱色剤として使用する場合、酸化染料を含まないこと以外は染毛剤の基本構成と同じである。 In the case of using the first agent as a hair dye, the basic composition is an alkaline dye, an oxidation dye, an oil component, and a surfactant. If necessary, additives such as a solvent, a stabilizer, a conditioning component, a fragrance, extracts, and a pH adjuster can be added. In addition, when using the said 1st agent as a decoloring agent, it is the same as the basic composition of a hair dye except not containing an oxidation dye.
一方、上記第２剤の基本構成は酸化剤の他、油性成分、および界面活性剤である。必要に応じて溶剤、安定剤、コンディショニング成分、香料、エキス類、ｐＨ調整剤などの添加剤を加えることができる。 On the other hand, the basic composition of the second agent is an oxidant, an oil component, and a surfactant. If necessary, additives such as a solvent, a stabilizer, a conditioning component, a fragrance, extracts, and a pH adjuster can be added.
ここで上記第１剤に用いられるアルカリ剤は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、例えば、アンモニア及び／またはその塩類、モノエタノールアミン及び／またはその塩類、トリエタノールアミン及び／またはその塩類、２−アミノ−２−メチル−１−プロパノール及び／またはその塩類などが挙げられる。 Here, the alkali agent used for the first agent is not particularly limited as long as it is usually used for a two-component oxidative hair dye or a bleaching agent. For example, ammonia and / or its salts, monoethanolamine and / or Examples thereof include salts thereof, triethanolamine and / or salts thereof, 2-amino-2-methyl-1-propanol and / or salts thereof.
これらのうち、毛髪への浸透性がよく高い染毛性が得られること、揮発性に優れており毛髪に残り難いため施術後の毛髪の損傷を抑えられること等の理由により、アンモニア及び／またはその塩類が好ましく用いられる。アンモニアまたはその塩類は、単独で使用しても良いし、併用しても良い。２剤式酸化染毛または脱色剤組成物全体に占める（すなわち、第１剤および第２剤の合計を１００質量％としたとき）、上記アンモニア及び／またはその塩類の配合量（単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）は０．１〜３質量％であることが好ましい。上記配合量が０．１質量％未満の場合、上述した効果が得られず、一方、上記配合量が３質量％を超えても、さらなる染毛性、脱色性の向上は期待できないばかりか、毛髪の損傷の原因になったり、皮膚刺激などの低減効果が維持できないなどの問題がある。 Among these, ammonia and / or for the reasons that good hair dyeability is obtained, high hair dyeability is obtained, and that it is excellent in volatility and hardly remains on the hair, so that damage to the hair after treatment can be suppressed. Their salts are preferably used. Ammonia or salts thereof may be used alone or in combination. The amount of the above-mentioned ammonia and / or its salt, which occupies the entire two-component oxidative hair coloring or bleaching composition (that is, when the total of the first agent and the second agent is 100% by mass) When it is a single compounding amount, and when combining two or more, it is the total amount thereof.) Is preferably 0.1 to 3% by mass. When the blending amount is less than 0.1% by mass, the above-described effects cannot be obtained. On the other hand, even if the blending amount exceeds 3% by mass, further improvement in hair dyeing property and decoloring property cannot be expected. There are problems such as causing damage to hair and not being able to maintain reduction effects such as skin irritation.
上記第１剤を染毛剤として使用する場合、上記第１剤は酸化染料を含む。酸化染料の種類は、２剤式酸化染毛剤に通常用いられるものであれば特に限定されず、例えば、パラフェニレンジアミン、トルエン−２，５−ジアミン、パラアミノフェノールなどが挙げられる。必要によって、カップラーを配合することもできる。こうしたカップラーとしては、例えば、α−ナフトール、レゾルシン、メタアミノフェノール、２，４−ジアミノフェノキシエタノール、パラアミノオルトクレゾール、５−（２−ヒドロキシエチルアミノ）−２−メチルフェノールなどが挙げられる。更に上記の他、「医薬部外品原料規格２００６」（薬事日報社）に記載された酸化染料を適宜用いることができる。更に上記の他、酸性染料（例えば赤色１０６号）、塩基性染料（例えばＢａｓｉｃ Ｙｅｌｌｏｗ ５７）、ＨＣ染料などを配合することもできる。これらは単独で使用しても良いし、併用しても良い。２剤式酸化染毛または脱色剤組成物全体に占める上記酸化染料の配合量は特に限定されず、当該組成物が処方される通常の範囲で用いられる。 When the first agent is used as a hair dye, the first agent contains an oxidation dye. The type of the oxidation dye is not particularly limited as long as it is usually used for a two-component oxidation hair dye, and examples thereof include paraphenylenediamine, toluene-2,5-diamine, and paraaminophenol. If necessary, a coupler can be blended. Examples of such couplers include α-naphthol, resorcin, metaaminophenol, 2,4-diaminophenoxyethanol, paraaminoorthocresol, 5- (2-hydroxyethylamino) -2-methylphenol, and the like. In addition to the above, oxidation dyes described in “Quasi-drug raw material standards 2006” (Pharmaceutical Daily) can be used as appropriate. In addition to the above, an acidic dye (for example, Red No. 106), a basic dye (for example, Basic Yellow 57), an HC dye, or the like can be blended. These may be used alone or in combination. The compounding quantity of the said oxidation dye which occupies the whole 2 agent type oxidative hair dye or decoloring agent composition is not specifically limited, It is used in the normal range by which the said composition is prescribed | regulated.
また上記第２剤に用いられる酸化剤は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、例えば、過酸化水素、過硫酸塩（例えば、過硫酸アンモニウム、過硫酸ナトリウム等）、過ホウ酸塩（例えば、過ホウ酸ナトリウム等）、過炭酸塩（例えば、過炭酸ナトリウム等）、臭素酸塩（例えば、臭素酸ナトリウム、臭素酸カリウム等）などが挙げられる。これらのうち、酸化力が高い、染料の発色が良い等の理由により、過酸化水素が好ましく用いられるが、その他の酸化剤も酸化助剤として過酸化水素と併用することもできる。これらは単独で使用しても良いし、併用しても良い。２剤式酸化染毛または脱色剤組成物全体に占める上記酸化剤の配合量（単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）は０．５〜６質量％であることが好ましい。上記配合量が０．５質量％未満の場合、上述した効果が得られず、一方、上記配合量が６質量％を超えると、さらなる染毛性、脱色性の向上は期待できないばかりか、毛髪が極端に損傷する、皮膚刺激などの低減効果が維持できないなどの問題がある。 The oxidizing agent used in the second agent is not particularly limited as long as it is usually used for a two-component oxidative hair dye or a bleaching agent. For example, hydrogen peroxide, persulfate (for example, ammonium persulfate, persulfate, Sodium sulfate, etc.), perborate (eg, sodium perborate, etc.), percarbonate (eg, sodium percarbonate, etc.), bromate (eg, sodium bromate, potassium bromate, etc.), etc. . Of these, hydrogen peroxide is preferably used for reasons such as high oxidizing power and good color development of the dye, but other oxidizing agents may be used in combination with hydrogen peroxide as an oxidizing aid. These may be used alone or in combination. Compounding amount of the above oxidizing agent in the entire two-component oxidative hair coloring or depigmenting composition (individual blending amount when blended alone, and total amount when blending two or more types in combination) .) Is preferably 0.5 to 6% by mass. When the blending amount is less than 0.5% by mass, the above-described effect cannot be obtained. On the other hand, when the blending amount exceeds 6% by mass, further improvement in hair dyeing property and decoloring property cannot be expected. However, there are problems such as extreme damage and inability to maintain reduction effects such as skin irritation.
次に、第１剤および第２剤に共通に用いられる成分（油性成分、界面活性剤、必要に応じて添加される添加剤）について説明する。 Next, components commonly used for the first agent and the second agent (oil-based component, surfactant, and additive added as necessary) will be described.
上記油性成分は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、例えば炭化水素、油脂、ロウ類、高級アルコール、高級脂肪酸、アルキルグリセリルエーテル、エステル類、シリコーン類等が挙げられる。これらは単独で配合してもよいし、二種以上を組み合わせて配合してもよい。２剤式酸化染毛または脱色剤組成物全体に占める上記油性成分の配合量は特に限定されず、当該組成物が処方される通常の範囲で用いられる。 The oil component is not particularly limited as long as it is usually used for two-component oxidative hair coloring or decoloring agents. For example, hydrocarbons, fats and oils, waxes, higher alcohols, higher fatty acids, alkyl glyceryl ethers, esters, silicones And the like. These may be blended singly or in combination of two or more. The compounding quantity of the said oil-based component which occupies the whole 2 agent type oxidative hair dye or decoloring agent composition is not specifically limited, It is used in the normal range by which the said composition is prescribed | regulated.
これらのうち炭化水素としては、例えば流動パラフィン、パラフィン、軽質流動イソパラフィン、軽質イソパラフィン、合成スクワラン、スクワラン、ワセリン等が挙げられる。 Among these, examples of the hydrocarbon include liquid paraffin, paraffin, light liquid isoparaffin, light isoparaffin, synthetic squalane, squalane, petrolatum and the like.
また油脂としては、例えばオリーブ油、ツバキ油、カカオ脂、マカデミアナッツ油等が挙げられる。 Examples of the oils and fats include olive oil, camellia oil, cacao butter and macadamia nut oil.
またロウ類としては、例えばミツロウ、キャンデリラロウ、ホホバ油、ラノリン等が挙げられる。 Examples of waxes include beeswax, candelilla wax, jojoba oil, and lanolin.
また高級アルコールとしては、例えばラウリルアルコール、ミリスチルアルコール、セトステアリルアルコール、セチルアルコール等が挙げられる。 Examples of higher alcohols include lauryl alcohol, myristyl alcohol, cetostearyl alcohol, cetyl alcohol and the like.
また高級脂肪酸としては、例えばラウリン酸、ベヘニン酸、ステアリン酸、パルミチン酸、オレイン酸、ラノリン脂肪酸等が挙げられる。 Examples of higher fatty acids include lauric acid, behenic acid, stearic acid, palmitic acid, oleic acid, and lanolin fatty acid.
またアルキルグリセリルエーテルとしては、例えばヘキサデシルグリセリルエーテル、オレイルグリセリルエーテル、オクタデシルグリセリルエーテル、イソステアリルグリセリルエーテル等が挙げられる。 Examples of the alkyl glyceryl ether include hexadecyl glyceryl ether, oleyl glyceryl ether, octadecyl glyceryl ether, and isostearyl glyceryl ether.
またエステル類としては、例えばパルミチン酸イソプロピル、ミリスチン酸イソプロピル、オクタン酸セチル、ミリスチン酸ミリスチル、ミリスチン酸イソステアリル等が挙げられる。 Examples of the esters include isopropyl palmitate, isopropyl myristate, cetyl octoate, myristyl myristate, and isostearyl myristate.
またシリコーン類としては、例えばジメチルポリシロキサン、メチルフェニルポリシロキサン、ポリエーテル変性シリコーン、アミノ変性シリコーン等が挙げられる。 Examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, and amino-modified silicone.
ここでＯ／Ｗエマルション中に配合される上記油性成分の配合量は、３〜２５質量％（油性成分を単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）が好ましく、５〜２０質量％がより好ましい。
また、Ｗ／Ｏエマルション中に配合される上記油性成分の配合量は、３０質量％（油性成分を単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）以下が好ましい。より好ましくは２５質量％以下であり、更に好ましくは２０質量％以下である。なお、その下限はおおむね、８質量％であることが好ましい。
Here, the blending amount of the oily component blended in the O / W emulsion is 3 to 25% by mass (when blending the oily component alone, it is a blending amount alone, and when blending two or more kinds in combination. Is the total amount thereof.) Is preferred, and 5 to 20% by mass is more preferred.
Moreover, the blending amount of the above oily component blended in the W / O emulsion is 30% by mass (when the oily component is blended alone, it is a blending amount alone, and when blending two or more of them, they are blended) The following is preferable. More preferably, it is 25 mass% or less, More preferably, it is 20 mass% or less. The lower limit is preferably about 8% by mass.
上記界面活性剤は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、非イオン性界面活性剤、アニオン性界面活性剤、カチオン性界面活性剤、両性界面活性剤のいずれも用いられる。上記界面活性剤は単独で配合してもよいし、二種以上を組み合わせて配合してもよい。２剤式酸化染毛または脱色剤組成物全体に占める上記界面活性剤の配合量は特に限定されず、当該組成物が処方される通常の範囲で用いられる。 The surfactant is not particularly limited as long as it is usually used for two-component oxidative hair coloring or depigmenting agent. Nonionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant Any of the agents are used. The said surfactant may be mix | blended independently and may be mix | blended in combination of 2 or more types. The compounding quantity of the said surfactant which occupies the whole 2 agent type oxidative hair dye or decoloring agent composition is not specifically limited, It is used in the normal range by which the said composition is prescribed | regulated.
これらのうち非イオン性界面活性剤としては、例えばポリオキシエチレン（以下、ＰＯＥという）アルキルエーテル類、ＰＯＥアルキルフェニルエーテル類、ＰＯＥソルビタン脂肪酸エステル類、ステアリン酸モノグリセリル、モノイソステアリン酸ポリグリセリル、縮合リシノレイン酸ポリグリセリル、パルミチン酸デキストリン、ジポリヒドロキシステアリン酸ＰＥＧ−３０等が挙げられる。 Among these, as nonionic surfactants, for example, polyoxyethylene (hereinafter referred to as POE) alkyl ethers, POE alkylphenyl ethers, POE sorbitan fatty acid esters, monoglyceryl stearate, polyglyceryl monoisostearate, condensed ricinolein Examples include acid polyglyceryl, dextrin palmitate, and PEG-30 dipolyhydroxystearate.
またアニオン性界面活性剤としては、例えばＮ−ステアロイル−Ｌ−アスパラギン酸ナトリウム等のＮ−ステアロイルアミノ酸塩、ラウリル硫酸ナトリウム、テトラデセンスルホン酸ナトリウム、セトステアリル硫酸ナトリウム等が挙げられる。 Examples of the anionic surfactant include N-stearoyl amino acid salts such as sodium N-stearoyl-L-aspartate, sodium lauryl sulfate, sodium tetradecene sulfonate, and sodium cetostearyl sulfate.
またカチオン性界面活性剤としては、塩化セチルトリメチルアンモニウム、塩化ステアリルトリメチルアンモニウム、臭化ステアリルトリメチルアンモニウム等が挙げられる。 Examples of the cationic surfactant include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, and stearyltrimethylammonium bromide.
また両性界面活性剤としては、例えばココアミドプロピルベタイン、ラウリルジメチルアミノ酢酸ベタイン等が挙げられる。 Examples of amphoteric surfactants include cocoamidopropyl betaine and lauryldimethylaminoacetic acid betaine.
本発明において一層優れた染色性を得るためには、Ｏ／Ｗエマルションを構成する界面活性剤として、イオン性の界面活性剤が好ましく用いられる。その場合、対になるＷ／Ｏエマルションを構成する油性成分の種類を適切に制御することが有効である。 In order to obtain more excellent dyeability in the present invention, an ionic surfactant is preferably used as the surfactant constituting the O / W emulsion. In that case, it is effective to appropriately control the type of oil component constituting the paired W / O emulsion.
例えばＯ／Ｗエマルションを構成する界面活性剤がアニオン性界面活性剤の場合、対になるＷ／Ｏエマルションを構成する油性成分は、炭化水素、高級アルコール、エステル類を単独で、または二種以上組み合わせて使用することが好ましく、特に極性の低い炭化水素の使用がより好ましい。 For example, when the surfactant constituting the O / W emulsion is an anionic surfactant, the oily component constituting the W / O emulsion to be paired is a hydrocarbon, a higher alcohol, or an ester alone, or two or more kinds It is preferable to use them in combination, and it is more preferable to use hydrocarbons having low polarity.
また、Ｏ／Ｗエマルションを構成する界面活性剤がカチオン性界面活性剤の場合、対になるＷ／Ｏエマルションを構成する油性成分は、高級アルコール、エステル類、油脂（植物油）を単独で、または二種以上組み合わせて使用することが好ましく、特に極性の高い植物油の使用がより好ましい。 Further, when the surfactant constituting the O / W emulsion is a cationic surfactant, the oily component constituting the W / O emulsion to be paired is a higher alcohol, an ester, an oil (vegetable oil) alone, or It is preferable to use a combination of two or more, and it is more preferable to use a highly polar vegetable oil.
ここでＯ／Ｗエマルション中に配合される上記界面活性剤の配合量は、０．５〜１５質量％（界面活性剤を単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）が好ましく、１〜１０質量％がより好ましい。
また、Ｗ／Ｏエマルション中に配合される上記界面活性剤の配合量は、１〜１５質量％（界面活性剤を単独で配合するときは単独の配合量であり、二種以上を組み合わせて配合するときはそれらの合計量である。）が好ましく、２〜１０質量％がより好ましい。
Here, the blending amount of the surfactant blended in the O / W emulsion is 0.5 to 15% by mass (when blending the surfactant alone, it is a blending amount alone, and two or more kinds are combined. The total amount thereof is preferable), and 1 to 10% by mass is more preferable.
Moreover, the compounding quantity of the said surfactant mix | blended in W / O emulsion is 1-15 mass% (When a surfactant is mix | blended independently, it is a single compounding quantity, and it mix | blends it combining 2 or more types. The total amount thereof is preferable), and 2 to 10% by mass is more preferable.
更に必要に応じて、以下の成分を含有することができる。 Furthermore, the following components can be contained as needed.
安定剤は、本発明に係る酸化染毛または脱色剤の安定性を保つために添加される。上記安定剤は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、例えば、アスコルビン酸ナトリウム、亜硫酸ナトリウム、エデト酸四ナトリウム、ヒドロキシエタンジホスホン酸、硫酸マグネシウム等が挙げられる。上記安定剤は単独で配合してもよいし、二種以上を組み合わせて配合してもよい。 Stabilizers are added to maintain the stability of the oxidative hair coloring or bleaching agent according to the present invention. The stabilizer is not particularly limited as long as it is commonly used for two-component oxidative hair coloring or depigmenting agents. For example, sodium ascorbate, sodium sulfite, tetrasodium edetate, hydroxyethanediphosphonic acid, magnesium sulfate, etc. Is mentioned. The said stabilizer may be mix | blended independently and may be mix | blended in combination of 2 or more types.
溶剤は、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されず、例えば、１，３−ブチレングリコール、濃グリセリン、ポリエチレングリコール等が挙げられる。上記溶剤は単独で配合してもよいし、二種以上を組み合わせて配合してもよい。 The solvent is not particularly limited as long as it is usually used for a two-component oxidative hair dye or a decoloring agent, and examples thereof include 1,3-butylene glycol, concentrated glycerin, and polyethylene glycol. The said solvent may be mix | blended independently and may be mix | blended in combination of 2 or more types.
更に、本発明に係る酸化染毛または脱色剤に賦香したり、そのコンセプトを具現化するなどの目的で、コンディショニング成分、香料、エキス類等の添加剤を適宜配合してもよい。これらは、２剤式酸化染毛または脱色剤に通常用いられるものであれば特に限定されない。 Furthermore, additives such as conditioning components, fragrances and extracts may be appropriately blended for the purpose of perfume the oxidative hair coloring or decoloring agent according to the present invention or embody the concept. These are not particularly limited as long as they are usually used for two-component oxidative hair coloring or decoloring agents.
更に上記第２剤には、ｐＨ調整剤を添加して、一般的にｐＨを２〜４の範囲に制御することが好ましい。 Furthermore, it is preferable to add a pH adjuster to the second agent to generally control the pH in the range of 2 to 4.
本発明の組成物は、好ましくは上記構成を有する第１剤の乳化形態がＯ／Ｗエマルションであり、第２剤の乳化形態がＷ／Ｏエマルションからなる。これにより、特に染毛性および脱色性が一層高められる他、種々の酸化染料に対して色々な色味を、よりバランス良く発色することもできる。 In the composition of the present invention, preferably, the emulsified form of the first agent having the above structure is an O / W emulsion, and the emulsified form of the second agent is a W / O emulsion. As a result, the hair dyeing property and decoloring property can be further enhanced, and various colors can be developed in a more balanced manner with respect to various oxidation dyes.
本発明は、上述した２剤式酸化染毛または脱色剤組成物を用いて染毛または脱色を行う方法も包含する。上記第１剤および第２剤を混合して毛髪に適用することにより、染毛または脱色が十分であり、しかも施術中に皮膚刺激（ピリピリ感・チクチク感など）を殆ど感じることのない染毛または脱色施術を提供できる。 The present invention also includes a method of performing hair dyeing or decoloring using the above-described two-component oxidative hair dyeing or bleaching composition. By mixing the first agent and the second agent and applying them to the hair, the hair dyeing or decoloring is sufficient, and there is almost no skin irritation (such as a tingling or tingling sensation) during the treatment. Or a decolorization procedure can be provided.
以下、実施例を挙げて本発明をより具体的に説明するが、本発明は下記実施例によって制限されず、前・後記の趣旨に適合し得る範囲で変更を加えて実施することも可能であり、それらはいずれも本発明の技術的範囲に包含される。なお、以下においては、特に断りのない限り、「％」は「質量％」を意味する。 Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited by the following examples, and can be implemented with modifications within a range that can meet the purpose described above and below. They are all included in the technical scope of the present invention. In the following, “%” means “mass%” unless otherwise specified.
実施例１
（第１剤−１〜９の調製）
表１に記載の第１剤−１〜４（酸化染毛剤、酸化染料あり、Ｏ／Ｗエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す安定剤、染料を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記水相へ油相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、アルカリ剤を適宜加えて均一となるようさらに撹拌し、第１剤組成物を調製した。
Example 1
(Preparation of first agent-1 to 9)
First agents -1 to 4 shown in Table 1 (oxidative hair dye, with oxidation dye, O / W emulsion) were prepared as follows.
First, a stabilizer and a dye shown in the table were added to an appropriate amount of purified water as an aqueous phase, heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Subsequently, the oil phase was dropped into the aqueous phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, an alkali agent was appropriately added and further stirred to be uniform to prepare a first agent composition.
また表１に記載の第１剤−５〜７（酸化染毛剤、酸化染料あり、Ｗ／Ｏエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す溶剤、安定剤、染料を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記油相へ水相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、アルカリ剤を適宜加えて均一となるようさらに撹拌し、第１剤組成物を調製した。
Moreover, the 1st agents -5-7 (with an oxidation hair dye and oxidation dye, and W / O emulsion) of Table 1 were prepared as follows.
First, a solvent, a stabilizer, and a dye shown in the table were added to an appropriate amount of purified water as an aqueous phase, and the mixture was heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Next, the aqueous phase was dropped into the oil phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, an alkali agent was appropriately added and further stirred to be uniform to prepare a first agent composition.
また表１に記載の第１剤−８（脱色剤、酸化染料なし、Ｏ／Ｗエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す安定剤を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記水相へ油相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、アルカリ剤を適宜加えて均一となるようさらに撹拌し、第１剤組成物を調製した。
Moreover, the 1st agent -8 (decoloring agent, no oxidation dye, O / W emulsion) of Table 1 was prepared as follows.
First, a stabilizer shown in the table was added to an appropriate amount of purified water as an aqueous phase, and the mixture was heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Subsequently, the oil phase was dropped into the aqueous phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, an alkali agent was appropriately added and further stirred to be uniform to prepare a first agent composition.
また表１に記載の第１剤−９（脱色剤、酸化染料なし、Ｗ／Ｏエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す溶剤、安定剤を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記油相へ水相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、アルカリ剤を適宜加えて均一となるようさらに撹拌し、第１剤組成物を調製した。
Moreover, the 1st agent-9 (decoloring agent, no oxidation dye, W / O emulsion) of Table 1 was prepared as follows.
First, a solvent and a stabilizer shown in the table were added to an appropriate amount of purified water as an aqueous phase, and the mixture was heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Next, the aqueous phase was dropped into the oil phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, an alkali agent was appropriately added and further stirred to be uniform to prepare a first agent composition.
（第２剤−１〜５の調製）
表２に記載の第２剤−１、２（Ｏ／Ｗエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す安定剤、ｐＨ調整剤を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記水相へ油相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、３５％過酸化水素水を加えて均一となるようさらに撹拌し、第２剤組成物を調製した。
(Preparation of the second agent-1 to 5)
Second agents-1 and 2 (O / W emulsion) described in Table 2 were prepared as follows.
First, a stabilizer and a pH adjuster shown in the table were added to an appropriate amount of purified water as an aqueous phase, and the mixture was heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Subsequently, the oil phase was dropped into the aqueous phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, 35% hydrogen peroxide solution was added and further stirred to be uniform to prepare a second agent composition.
また表２に記載の第２剤−３〜５（Ｗ／Ｏエマルション）を以下のようにして調製した。
先ず、水相として適量の精製水に表中に示す溶剤、安定剤、ｐＨ調整剤を加えて８０℃まで加温し、溶解した。次に、油相として、表中に示す油性成分と界面活性剤を混合し８０℃まで溶解した。次いで、上記油相へ水相を滴下、混合し乳化した後、約４０℃まで冷却した。冷却後、３５％過酸化水素水を加えて均一となるようさらに撹拌し、第２剤組成物を調製した。
Moreover, the 2nd agent -3-5 (W / O emulsion) of Table 2 was prepared as follows.
First, the solvent, stabilizer, and pH adjuster shown in the table were added to an appropriate amount of purified water as an aqueous phase, and the mixture was heated to 80 ° C. and dissolved. Next, as an oil phase, the oil component and the surfactant shown in the table were mixed and dissolved to 80 ° C. Next, the aqueous phase was dropped into the oil phase, mixed and emulsified, and then cooled to about 40 ° C. After cooling, 35% hydrogen peroxide solution was added and further stirred to be uniform to prepare a second agent composition.
（２剤式酸化染毛または脱色剤組成物の調製）
上記のようにして得られた表１に記載の各第１剤および表２に記載の各第２剤を１：１（質量比）となるように混合して、各組成物を得た。
(Preparation of two-component oxidative hair coloring or decoloring agent composition)
The respective first agents described in Table 1 obtained as described above and the respective second agents described in Table 2 were mixed so as to be 1: 1 (mass ratio) to obtain respective compositions.
（評価方法）
（１）染毛性の評価
表１に記載の各第１剤（第１剤−１〜７；酸化染料あり）と、表２に記載の各第２剤（第２剤−１〜５）との混合物を、化学的処理（酸化染毛または脱色処理等）を受けていない人由来の毛髪の毛束（１０ｃｍ、１．０ｇ、１００％白髪毛）に塗布し、３５℃で３０分間放置した。次いで、水洗、ラウリル硫酸トリエタノールアミン１０％水溶液で洗浄した後、風乾させた。風乾後の毛束の染毛の程度を、専門のパネラー（１０名）により目視にて観察し、下記基準によって評価し、平均点を算出した。毛束が染まる度合いによって、白髪〜薄い茶色〜濃い茶色へと変化する。
(Evaluation methods)
(1) Evaluation of hair dyeing property Each first agent described in Table 1 (first agent-1 to 7; with oxidation dye) and each second agent described in Table 2 (second agent-1 to 5) Was applied to a hair bundle (10 cm, 1.0 g, 100% gray hair) derived from a person not subjected to chemical treatment (oxidative hair coloring or decoloring treatment, etc.) and left at 35 ° C. for 30 minutes. . Subsequently, it was washed with water, washed with a 10% aqueous solution of triethanolamine lauryl sulfate, and then air-dried. The degree of dyeing of the hair bundle after air drying was visually observed by a specialized panelist (10 persons), evaluated according to the following criteria, and the average score was calculated. It changes from gray hair to light brown to dark brown depending on the degree to which the hair bundle is dyed.
（染毛性の評価基準）
３点：優れた染毛性（濃い茶色に染まる）
２点：良い染毛性（薄い茶色に染まる）
１点：悪い染毛性（染まりが薄い）
（平均点の基準）
◎：２．５点以上、３．０点以下
○：２．０点以上、２．５点未満
△：１．５点以上、２．０点未満
×：１．５点未満
(Evaluation criteria for hair dyeing properties)
3 points: Excellent hair dyeing (dyed dark brown)
2 points: Good hair dyeing (dyed light brown)
1 point: Bad hair dyeing (light dyeing)
(Average point standard)
◎: 2.5 points or more, 3.0 points or less ○: 2.0 points or more, less than 2.5 points △: 1.5 points or more, less than 2.0 points ×: Less than 1.5 points
（２）脱色性の評価
表１に記載の各第１剤（第１剤−８、９；酸化染料なし）と、表２に記載の各第２剤（第２剤−１〜５）との混合物を、化学的処理（酸化染毛または脱色処理等）を受けていない人由来の毛髪の毛束（１０ｃｍ、１．０ｇ、１００％黒髪毛）に塗布し、３５℃で３０分間放置した。次いで、水洗、ラウリル硫酸トリエタノールアミン１０％水溶液で洗浄した後、風乾させた。風乾後の毛束の脱色の程度を、専門のパネラー（１０名）により目視にて観察し、下記基準によって評価し、平均点を算出した。毛束が脱色される度合いによって、黒〜暗い赤茶〜茶〜黄みの茶色へと変化する。
(2) Evaluation of decoloring property Each first agent described in Table 1 (first agent-8, 9; no oxidation dye) and each second agent described in Table 2 (second agent-1 to 5) Was applied to a hair bundle (10 cm, 1.0 g, 100% black hair) derived from a person who had not been subjected to chemical treatment (oxidative hair coloring or decoloring treatment, etc.) and left at 35 ° C. for 30 minutes. Subsequently, it was washed with water, washed with a 10% aqueous solution of triethanolamine lauryl sulfate, and then air-dried. The degree of decolorization of the hair bundle after air drying was visually observed by a specialized panelist (10 persons), evaluated according to the following criteria, and the average score was calculated. It changes from black to dark red brown to brown to yellowish brown depending on the degree of decolorization of the hair bundle.
（脱色性の評価基準）
３点：優れた脱色性（黒髪がしっかりと明るくなって黄みの茶色となる）
２点：良い脱色性（黒髪が明るくなって茶色となる）
１点：悪い脱色性（黒髪が若干明るくなって赤茶となる）
（平均点の基準）
◎：２．５点以上、３．０点以下
○：２．０点以上、２．５点未満
△：１．５点以上、２．０点未満
×：１．５点未満
(Evaluation criteria for decolorization)
3 points: Excellent depigmenting property (black hair becomes light and bright yellow)
2 points: Good depigmentation (black hair becomes lighter and brown)
1 point: Poor depigmentation (black hair becomes a little brighter and reddish brown)
(Average point standard)
◎: 2.5 points or more, 3.0 points or less ○: 2.0 points or more, less than 2.5 points △: 1.5 points or more, less than 2.0 points ×: Less than 1.5 points
（３）皮膚刺激の評価（上腕部皮膚刺激の評価方法）
表１に記載の各第１剤（第１剤−１〜９）と、表２に記載の各第２剤（第２剤−１〜５）との混合物を、専門のパネラー１０名の上腕部に塗布し（１ｃｍ2当たり約１ｇ）、３０分間放置した。下記基準で皮膚刺激（チクチク感・ピリピリ感など）の有無を評価し、平均点を算出した。平均点の高い方が、皮膚刺激が少ないことを意味する。
(3) Evaluation of skin irritation (upper arm skin irritation evaluation method)
A mixture of each first agent (first agent-1 to 9) described in Table 1 and each second agent (second agent-1 to 5) described in Table 2 is an upper arm of 10 professional panelists. It was applied to the part (about 1 g per 1 cm 2 ) and left for 30 minutes. The presence or absence of skin irritation (such as tingling sensation and tingling sensation) was evaluated according to the following criteria, and the average score was calculated. A higher average score means less skin irritation.
（皮膚刺激の評価基準）
３点：刺激は全くない
２点：刺激は殆どない
１点：やや刺激がある
０点：刺激がある
（平均点の基準）
◎：２．５点以上、３．０点以下
○：２．０点以上、２．５点未満
△：１．５点以上、２．０点未満
×：１．５点未満
(Evaluation criteria for skin irritation)
3 points: No stimulation 2 points: Little stimulation 1 point: Slight stimulation 0 point: Stimulation (average point standard)
◎: 2.5 points or more, 3.0 points or less ○: 2.0 points or more, less than 2.5 points △: 1.5 points or more, less than 2.0 points ×: Less than 1.5 points
これらの結果を表３および表４に記載する。 These results are listed in Tables 3 and 4.
これらの結果より、以下のように考察することができる。 From these results, it can be considered as follows.
まず第１剤−１〜７（酸化染毛剤）を用いた場合について考察する。
これらのうち第１剤−１〜４はＯ／Ｗエマルションの例であり、第２剤として第１剤と乳化形態が異なるＷ／Ｏエマルションの第２剤−３〜５を用いた場合、いずれの例においても、染毛性および皮膚刺激の低減効果の両方とも優れた結果が得られた。これに対し、第２剤として第１剤と同じ乳化形態であるＯ／Ｗエマルションの第２剤−１、２を用いた場合、いずれの例においても、染毛性は良好であったが、皮膚刺激の低減効果が劣っていた。
First, the case of using the first agent-1 to 7 (oxidative hair dye) will be considered.
Of these, the first agent-1 to 4 are examples of O / W emulsion, and when the second agent-3 to 5 of the W / O emulsion having a different emulsion form from the first agent is used as the second agent, Also in this example, excellent results were obtained in both the hair dyeing property and the effect of reducing skin irritation. On the other hand, when the 2nd agent-1 and 2 of the O / W emulsion which is the same emulsification form as the 1st agent were used as the 2nd agent, in any example, the hair dyeing property was good, The effect of reducing skin irritation was poor.
同様の結果は、第１剤−５〜７（Ｗ／Ｏエマルション）を用いたときにも見られた。すなわち、第１剤としてＷ／Ｏエマルションの５〜７を用い、第２剤として第１剤と乳化形態が異なるＯ／Ｗエマルションの第２剤−１、２を用いた場合、いずれの例においても、染毛性および皮膚刺激の低減効果の両方とも優れた結果が得られた。これに対し、第２剤として第１剤と乳化形態が同じＷ／Ｏエマルションの第２剤−３〜５を用いた場合、いずれの例においても、皮膚刺激の低減効果は良好であったが、染毛性が劣っていた。 Similar results were seen when using the first agent-5 to 7 (W / O emulsion). That is, when 5-7 of W / O emulsion is used as the first agent, and the second agent-1 or 2 of O / W emulsion having a different emulsion form from the first agent is used as the second agent, in any example In addition, excellent results were obtained in both the hair dyeing property and the effect of reducing skin irritation. On the other hand, when the 2nd agent-3-5 of the W / O emulsion with the same emulsification form as the 1st agent was used as the 2nd agent, in any example, although the reduction effect of skin irritation was good, The hair dye was inferior.
これらの結果より、第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる２剤式酸化染毛剤組成物を用いると、染毛性および皮膚刺激の低減効果が両立することが分った。
上記発明例のうち、特に第１剤としてＯ／Ｗエマルションの１〜４を用いた場合は、第１剤としてＷ／Ｏエマルションの５〜７を用いた場合に比べて優れた染毛性を示した。よって、本発明では、特に第１剤としてＯ／Ｗエマルションを、第２剤としてＷ／Ｏエマルションを用いることがより好ましいことが分る。
From these results, either one of the first agent and the second agent is an oil-in-water (O / W) emulsion, and the other is a water-in-oil (W / O) emulsion. It has been found that when the hair dye composition is used, both the hair dyeing property and the effect of reducing skin irritation are compatible.
Among the above invention examples, in particular, when 1 to 4 of O / W emulsion is used as the first agent, excellent hair dyeing properties are obtained as compared with the case of using 5 to 7 of W / O emulsion as the first agent. Indicated. Therefore, in this invention, it turns out that it is more preferable to use especially an O / W emulsion as a 1st agent and a W / O emulsion as a 2nd agent.
次に第１剤−８、９（脱色剤）を用いた場合について考察する。
第１剤−８はＯ／Ｗエマルションの例であり、第２剤として第１剤と乳化形態が異なるＷ／Ｏエマルションの第２剤−３〜５を用いた場合、いずれの例においても、脱色性および皮膚刺激の低減効果の両方とも優れた結果が得られた。これに対し、第２剤として第１剤と乳化形態が同じＯ／Ｗエマルションの第２剤−１、２を用いた場合、いずれの例においても、脱色性は良好であったが、皮膚刺激の低減効果が劣っていた。
Next, the case where 1st agent-8, 9 (decoloring agent) is used is considered.
The first agent-8 is an example of an O / W emulsion, and when the second agent-3 to 5 of the W / O emulsion having a different emulsification form from the first agent is used as the second agent, in any example, Excellent results were obtained in both depilation and skin irritation reduction effects. On the other hand, when the 2nd agent-1 and 2 of the O / W emulsion with the same emulsification form as the 1st agent were used as the 2nd agent, decoloring property was favorable in any example, but skin irritation The reduction effect of was inferior.
同様の結果は、第１剤−９（Ｗ／Ｏエマルション）を用いたときにも見られた。すなわち、第１剤としてＷ／Ｏエマルションを用い、第２剤として第１剤と乳化形態が異なるＯ／Ｗエマルションの第２剤−１、２を用いた場合、いずれの例においても、脱色性および皮膚刺激の低減効果の両方とも優れた結果が得られた。これに対し、第２剤として第１剤と乳化形態が同じＷ／Ｏエマルションの第２剤−３〜５を用いた場合、いずれの例においても、皮膚刺激の低減効果は良好であったが、脱色性が劣っていた。 Similar results were seen when using first agent-9 (W / O emulsion). That is, when a W / O emulsion is used as the first agent and the second agents -1 and 2 of an O / W emulsion having a different emulsification form from the first agent are used as the second agent, the decolorization property in any of the examples. Excellent results were obtained for both skin irritation and skin irritation. On the other hand, when the 2nd agent-3-5 of the W / O emulsion with the same emulsification form as the 1st agent was used as the 2nd agent, in any example, although the reduction effect of skin irritation was good, The decolorization property was inferior.
これらの結果より、第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる２剤式脱色剤組成物を用いることにより、脱色性および皮膚刺激の低減効果が両立することが分った。
なお脱色剤では、本発明例のうち第１剤としてＯ／Ｗエマルションを用いると脱色性がより顕著に発揮され、第１剤としてＷ／Ｏエマルションを用いると皮膚刺激の低減効果がより顕著に発揮されることも分った。
From these results, either one of the first agent and the second agent is an oil-in-water (O / W) emulsion, and the other is a water-in-oil (W / O) emulsion. It was found that by using the agent composition, both decolorization and skin irritation reduction effects are compatible.
In addition, in the decoloring agent, when the O / W emulsion is used as the first agent in the examples of the present invention, the decoloring property is more remarkably exhibited, and when the W / O emulsion is used as the first agent, the effect of reducing skin irritation is more remarkable. I also found that it was demonstrated.
実施例２
本実施例では、表６に記載の第１剤−１〜４、１０、１１（これらのうち１〜４は表１と同じ）および表７に記載の第１剤−１２〜２９、並びに表５に記載の第２剤−６〜９を、上記実施例１と同様にして調製し、各第１剤および第２剤を１：１（質量比）となるように混合して２剤式酸化染毛組成物を得た。このようにして得られた各種組成物の染色性、および皮膚刺激性を実施例１と同様にして評価した。これらの結果を表６および表７に併記する。
その結果、本発明の要件を満足する組成物は、いずれの組み合わせにおいても良好な染色性および皮膚刺激の低減効果が得られることが確認された。
Example 2
In this example, the first agents-1 to 4, 10, and 11 described in Table 6 (1 to 4 are the same as those in Table 1) and the first agents to 12 to 29 described in Table 7 and the table The second agent-6 to 9 described in 5 was prepared in the same manner as in Example 1, and the first agent and the second agent were mixed at 1: 1 (mass ratio) to form a two-agent formula. An oxidative hair dye composition was obtained. The dyeability and skin irritation of the various compositions thus obtained were evaluated in the same manner as in Example 1. These results are also shown in Tables 6 and 7.
As a result, it was confirmed that the composition satisfying the requirements of the present invention can obtain good dyeability and skin irritation reduction effect in any combination.
実施例３
本実施例では、表８に記載の第１剤−３０〜４７、および前述した表５に記載の第２剤−６〜９を、上記実施例１と同様にして調製し、各第１剤および第２剤を１：１（質量比）となるように混合して２剤式酸化染毛組成物を得た。このようにして得られた各種組成物の染色性、および皮膚刺激性を実施例１と同様にして評価した。これらの結果を表８に併記する。
その結果、本発明の要件を満足する組成物は、いずれの組み合わせにおいても良好な染色性および皮膚刺激の低減効果が得られることが確認された。
Example 3
In this example, the first agent −30 to 47 described in Table 8 and the second agent −6 to 9 described in Table 5 were prepared in the same manner as in Example 1, and each first agent was prepared. And the 2nd agent was mixed so that it might become 1: 1 (mass ratio), and the 2 agent type oxidative hair dye composition was obtained. The dyeability and skin irritation of the various compositions thus obtained were evaluated in the same manner as in Example 1. These results are also shown in Table 8.
As a result, it was confirmed that the composition satisfying the requirements of the present invention can obtain good dyeability and skin irritation reduction effect in any combination.
実施例４
本実施例では、表９に記載の第１剤−３、４８〜５１（これらのうち３は表１と同じ）、および前述した表５に記載の第２剤−８、９を、上記実施例１と同様にして調製し、各第１剤および第２剤を１：１（質量比）となるように混合して２剤式酸化染毛組成物を得た。このようにして得られた各種組成物の染色性、および皮膚刺激性を実施例１と同様にして評価した。これらの結果を表９に併記する。
その結果、本発明の要件を満足する組成物は、いずれの組み合わせにおいても良好な染色性および皮膚刺激の低減効果が得られることが確認された。
Example 4
In this example, the first agent-3 and 48 to 51 described in Table 9 (3 of them are the same as those in Table 1) and the second agent-8 and 9 described in Table 5 described above were performed as described above. It prepared like Example 1, each 1st agent and 2nd agent were mixed so that it might become 1: 1 (mass ratio), and the 2 agent type oxidative hair dye composition was obtained. The dyeability and skin irritation of the various compositions thus obtained were evaluated in the same manner as in Example 1. These results are also shown in Table 9.
As a result, it was confirmed that the composition satisfying the requirements of the present invention can obtain good dyeability and skin irritation reduction effect in any combination.
特に、２剤式染毛剤に占めるアンモニア及び／またはその塩類の配合量が０．１〜３質量％に制御された例（第１剤−３と第２剤−８、第１剤−３と第２剤−９、第１剤−５０と第２剤−８、第１剤−５０と第２剤−９）は、良好な染色性および皮膚刺激の低減効果がバランス良く得られる傾向にあることが分った。 In particular, an example in which the blending amount of ammonia and / or a salt thereof in the two-component hair dye is controlled to 0.1 to 3% by mass (first agent-3, second agent-8, and first agent-3). And the second agent-9, the first agent-50 and the second agent-8, the first agent-50 and the second agent-9) tend to obtain a good balance between good dyeability and skin irritation reduction effect. I found that there was.
実施例５
本実施例では、表１０に記載の第１剤−３、４、５２（これらのうち３、４は表１と同じ）；並びに表１１に記載の第２剤−１０〜１５、および表１２に記載の第２剤−１６〜３３を、上記実施例１と同様にして調製し、各第１剤および第２剤を１：１（質量比）となるように混合して２剤式酸化染毛組成物を得た。このようにして得られた各種組成物の染色性、および皮膚刺激性を実施例１と同様にして評価した。これらの結果を表１１および表１２に併記する。
その結果、本発明の要件を満足する組成物は、いずれの組み合わせにおいても良好な染色性および皮膚刺激の低減効果が得られることが確認された。
Example 5
In this example, the first agent-3, 4, 52 described in Table 10 (among these, 3 and 4 are the same as Table 1); and the second agent-10-15 described in Table 11, and Table 12 The second agent -16 to 33 described in 1 was prepared in the same manner as in Example 1 above, and each of the first agent and the second agent were mixed at a ratio of 1: 1 (mass ratio) to oxidize two agents. A hair dye composition was obtained. The dyeability and skin irritation of the various compositions thus obtained were evaluated in the same manner as in Example 1. These results are also shown in Tables 11 and 12.
As a result, it was confirmed that the composition satisfying the requirements of the present invention can obtain good dyeability and skin irritation reduction effect in any combination.
具体的には、Ｏ／Ｗエマルションを構成する界面活性剤がアニオン性界面活性剤（第１剤−３）の場合、対になるＷ／Ｏエマルションを構成する油性成分として、極性の低い炭化水素を使用する（第２剤−１０、第２剤−１１、第２剤−１３、第２剤−１４、第２剤−１５）と、染色性および皮膚刺激の低減効果がバランス良く一層向上することが確認された（表１１を参照）。
また、Ｏ／Ｗエマルションを構成する界面活性剤がカチオン性界面活性剤（第１剤−４）の場合、対になるＷ／Ｏエマルションを構成する油性成分として、極性の高い植物油を使用する（第２剤−３０〜第２剤−３３）と、染色性が一層向上することが確認された(表１２を参照)。
Specifically, when the surfactant constituting the O / W emulsion is an anionic surfactant (first agent-3), a hydrocarbon having a low polarity as the oil component constituting the W / O emulsion to be paired (2nd Agent-10, 2nd Agent-11, 2nd Agent-13, 2nd Agent-14, 2nd Agent-15), the dyeing and skin irritation reducing effects are further improved in a well-balanced manner. (See Table 11).
Further, when the surfactant constituting the O / W emulsion is a cationic surfactant (first agent-4), a highly polar vegetable oil is used as the oil component constituting the W / O emulsion to be paired ( It was confirmed that the dyeability was further improved with the second agent-30 to the second agent-33) (see Table 12).
実施例６
本実施例では、表１３に記載の第１剤−５３〜５６、および表１４に記載の第１剤−５７〜６０；並びに前述した表５に記載の第２剤−６〜９を、上記実施例１と同様にして調製し、各第１剤および第２剤を１：１（質量比）となるように混合して２剤式酸化染毛組成物を得た。このようにして得られた各種組成物の発色バランスを以下のようにして評価した。
Example 6
In this example, the first agent -53 to 56 described in Table 13 and the first agent -57 to 60 described in Table 14; and the second agent -6 to 9 described in Table 5 described above were used as described above. It prepared like Example 1, each 1st agent and 2nd agent were mixed so that it might become 1: 1 (mass ratio), and the 2 agent type oxidative hair dye composition was obtained. The color balance of the various compositions thus obtained was evaluated as follows.
（４）発色バランスの評価方法
第１剤−５０（Ｏ／Ｗエマルション）、および第２剤−１（（Ｏ／Ｗエマルション）を、１：１（質量比）で混合した後、１０ｃｍ、１ｇの白毛束（ビューラックス社製）に浴比１：１になるよう塗布し、３５℃で３０分間放置した。次いで、水洗、適量のラウリル硫酸トリエタノールアミン１０％水溶液で洗浄した後、自然乾燥させた。この処理で染色された毛束は、暗い紫（７．５Ｐ ２．５／４．５）(ＪＩＳ色名帳)に染色される。
この毛束を基準にして、基準からの色相のずれ（相違）を専門のパネラー（１０名）により目視にて観察し、下記基準によって評価し、平均点を算出した。
(4) Evaluation method of color balance The first agent-50 (O / W emulsion) and the second agent-1 ((O / W emulsion) were mixed at 1: 1 (mass ratio), and then 10 cm, 1 g Was applied to a white hair bundle (manufactured by Beaulux) at a bath ratio of 1: 1, and allowed to stand for 30 minutes at 35 ° C. Next, after washing with water and a proper amount of 10% aqueous solution of triethanolamine lauryl sulfate, The hair bundle dyed by this treatment is dyed dark purple (7.5P 2.5 / 4.5) (JIS color name book).
Using this hair bundle as a reference, hue deviation (difference) from the reference was visually observed by a specialized panel (10 persons), evaluated according to the following criteria, and an average score was calculated.
（発色バランスの評価基準）
１点：明らかな色相のずれがある
２点：少し色相のずれがある
３点：ほぼ色相のずれはない
（平均点の基準）
◎：２．５点以上、３．０点以下
○：２．０点以上、２．５点未満
△：１．５点以上、２．０点未満
×：１．５点未満
(Evaluation criteria for color balance)
1 point: There is a clear hue shift 2 points: There is a slight hue shift 3 points: There is almost no hue shift (standard of average points)
◎: 2.5 points or more, 3.0 points or less ○: 2.0 points or more, less than 2.5 points △: 1.5 points or more, less than 2.0 points ×: Less than 1.5 points
これらの結果を表１３および１４に併記する。 These results are also shown in Tables 13 and 14.
これらの結果より、第１剤がＯ／Ｗエマルションであり、第２剤がＷ／Ｏエマルションの場合、発色バランスがより向上することが分かった。 From these results, it was found that when the first agent is an O / W emulsion and the second agent is a W / O emulsion, the color balance is further improved.
Claims (5)
前記第１剤および第２剤のうち、いずれか一方が水中油滴型（Ｏ／Ｗ）エマルションであり、他方が油中水滴型（Ｗ／Ｏ）エマルションからなる２剤式酸化染毛または脱色剤組成物。 A two-component oxidative hair coloring or bleaching agent composition comprising a first agent containing an alkaline agent and a second agent containing an oxidizing agent,
Of the first agent and the second agent, either one is an oil-in-water (O / W) emulsion and the other is a water-in-oil (W / O) emulsion. Agent composition.
A method for performing hair dyeing or decoloring using the two-component oxidative hair dyeing or bleaching composition according to any one of claims 1 to 4.
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| JP2004026826A (en) * | 2002-06-20 | 2004-01-29 | L'oreal Sa | Cosmetic and/or dermatologic use of composition containing at least one oxidation-sensitive hydrophilic component stabilized by at least one maleic anhydride copolymer |
| JP2005298831A (en) * | 2002-05-14 | 2005-10-27 | Shiseido Co Ltd | Thickener |
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|---|---|---|---|---|
| JPH092924A (en) * | 1995-06-16 | 1997-01-07 | Shiseido Co Ltd | Hair-treating agent, hair treatment and emulsion for treating hair |
| JPH09301824A (en) * | 1996-03-12 | 1997-11-25 | Shiseido Co Ltd | W/o type emulsion composition and cosmetic |
| JPH1067624A (en) * | 1996-08-26 | 1998-03-10 | Shiseido Co Ltd | Hair treating emulsion |
| JP2005298831A (en) * | 2002-05-14 | 2005-10-27 | Shiseido Co Ltd | Thickener |
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