JP2019123701A - Hair treatment agent - Google Patents
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Abstract
Description
本発明は、還元剤や酸化剤を含まずに、ヘアカラーをしたクセ毛やうねりのある毛髪に対してヘアカラーの退色を抑えながら伸長（クセを抑制）することができる毛髪処理剤に関する。また、当該毛髪処理剤を用いることにより、毛髪を傷めることなく、ヘアカラーの退色を抑えながら毛髪を伸長（クセを抑制）できる毛髪処理方法にも関する。 TECHNICAL FIELD The present invention relates to a hair treatment agent which is capable of extending (suppressing squeeze) while suppressing fading of a hair color with respect to hair colored squeezed hair or waviness, without containing a reducing agent or an oxidizing agent. In addition, the present invention also relates to a hair treatment method capable of extending the hair (suppressing peculiarity) while suppressing the fading of the hair color without damaging the hair by using the hair treatment agent.
一般的な縮毛矯正剤は、主成分の還元剤、酸化剤の作用及び高温での機械的処理により毛髪を伸長（クセを抑制）することができる。具体的には、チオグリコール酸又はその塩、システアミン又はその塩等の還元剤と、アンモニア水、モノエタノールアミン、炭酸水素アンモニウム等のアルカリ剤を含有する第１剤を毛髪に塗布することで、ケラチンタンパクに存在するジスルフィド結合を還元開裂し、毛髪を高温での機械的処理によりストレート状に伸ばした上で、過酸化水素あるいは臭素酸ナトリウム等の酸化剤を主成分とする第２剤で処理して、ジスルフィド基を酸化再形成させ、毛髪をストレート状に固定する。 A common hair straightener can stretch the hair (inhibit the habit) by the action of the main component reducing agent, oxidizing agent and mechanical treatment at high temperature. Specifically, a first agent containing a reducing agent such as thioglycolic acid or a salt thereof, cysteamine or a salt thereof, and an alkali agent such as aqueous ammonia, monoethanolamine, or ammonium hydrogencarbonate is applied to the hair, Disulfide bonds present in keratin proteins are reductively cleaved, and the hair is straightened by mechanical treatment at high temperature, and then treated with a second agent based on an oxidizing agent such as hydrogen peroxide or sodium bromate Then, the disulfide group is oxidized and reformed to fix the hair straight.
しかし、還元剤、酸化剤の作用はヘアカラーを退色させるとともに毛髪ダメージを伴うことが多く、処理後の時間経過に伴い毛髪の感触が悪くなるほか、毛髪表面が荒れることにより、毛髪の風合いが低下してしまう。このため還元剤や酸化剤を含まずに、ヘアカラーをしているクセ毛やうねりのある毛髪をストレート状にすることができるヘアカラー毛用の毛髪処理剤の開発が望まれている。 However, the actions of reducing agents and oxidizing agents often cause hair damage as well as fading the hair color, and the feel of the hair worsens with the passage of time after the treatment, and the texture of the hair It will decrease. For this reason, there is a demand for the development of a hair treatment agent for hair coloring hair which can make straight hair which is an unusual hair and a hair having hair coloring free from a reducing agent and an oxidizing agent.
還元剤や酸化剤を含まない毛髪処理剤としては、毛髪矯正成分としてグリオキシル酸を用いる方法が提案されている。例えば、特許文献１には、グリオキシル酸を含む溶液を毛髪に塗布して放置し、毛髪を乾燥させた後に、毛髪矯正アイロンにより約２００±５０℃で毛髪を矯正する方法が開示されている。この方法では、毛髪のダメージを抑えながら毛髪を半永久的に矯正できるが、ヘアカラーをしているクセ毛やうねりのある毛髪に適用した時、ヘアカラーを退色させてしまう。さらに、特許文献２には、グリオキシル酸を１５．０〜２５．０質量％とグアニジン塩及び／又は尿素を含むｐＨ１．０〜２．５の溶液を毛髪に塗布して放置し、水洗、毛髪を乾燥させた後に、整髪用アイロンにより１４０〜２００℃で毛髪を矯正する方法が開示されている。この方法でも、毛髪のダメージを抑えながら毛髪を矯正できるが、ヘアカラーをしているクセ毛やうねりのある毛髪に適用した時、ヘアカラーを退色させてしまう。 As a hair treatment agent which does not contain a reducing agent or an oxidizing agent, a method using glyoxylic acid as a hair correction component has been proposed. For example, Patent Document 1 discloses a method in which a solution containing glyoxylic acid is applied to hair and left to stand to dry the hair, and then the hair is corrected at about 200 ± 50 ° C. by a hair straightening iron. In this method, the hair can be corrected semipermanently while suppressing the damage to the hair, but when it is applied to the lashed hair or the hair having a hair color, the hair color is discolored. Furthermore, in Patent Document 2, a solution of pH 1.0 to 2.5 containing 15.0 to 25.0% by mass of glyoxylic acid and a guanidine salt and / or urea is applied to hair and left to stand, water washing, hair After drying, a method of straightening the hair at 140-200.degree. C. with a hair setting iron is disclosed. Even with this method, it is possible to correct the hair while suppressing the damage to the hair, but when it is applied to the peculiar hair having the hair color and the hair having the waviness, the hair color is discolored.
また、レブリン酸を含む毛髪処理剤として、例えば、特許文献３には、レブリン酸及びその塩類を含むヘアーリンス剤が開示されている。この方法では、毛髪の触感の改善できるが、毛髪の矯正はできない。さらに、特許文献４には、レブリン酸を含む毛髪処理剤を塗布し、風乾後、熱処理を施すことにより毛髪のダメージ感を改善する効果を有し、かつ、その効果を持続させることができる毛髪の改善方法が開示されている。当該特許における熱処理は、毛髪に対して熱を与えることが目的であり、高温での機械的処理により毛髪を矯正する工程はなく、毛髪の触感の改善や持続性のあるダメージの改善はできるが、クセ毛やうねりのある毛髪の矯正に関する記述はない。 In addition, as a hair treatment agent containing levulinic acid, for example, Patent Document 3 discloses a hair rinse agent containing levulinic acid and its salts. This method can improve the feel of the hair but can not correct the hair. Furthermore, in Patent Document 4, a hair treatment agent containing levulinic acid is applied, air-dried and then heat-treated to have an effect of improving the sense of damage to the hair, and to maintain the effect. Methods of improving the The purpose of the heat treatment in this patent is to apply heat to the hair, there is no step of correcting the hair by mechanical treatment at high temperature, and it can improve the feel of the hair and improve the persistent damage. There is no description on the correction of irritated hair or irritated hair.
本発明は、前記従来技術の欠点に鑑みてなされたものであり、ヘアカラーを退色させると共にダメージを与える還元剤や酸化剤を用いず、さらに、ヘアカラーを退色させるグリオキシル酸を含有する毛髪処理剤の欠点を解消した、毛髪処理剤と毛髪処理方法を提供することを目的とする。 The present invention has been made in view of the above-mentioned disadvantages of the prior art, and it comprises a glyoxylic acid-containing hair treatment for fading the hair color, without using a reducing agent or an oxidizing agent which causes the hair color to be bleached and damaged. It is an object of the present invention to provide a hair treatment agent and a hair treatment method, in which the disadvantages of the agent are eliminated.
本発明者は、前記の課題を解決すべく鋭意研究を重ねた結果、レブリン酸及びグリオキシル酸を特定量含有し、ｐＨが１．５〜３．０の範囲に調整することにより、還元剤や酸化剤によらずに、ヘアカラーを退色させるグリオキシル酸の欠点を解消し、ヘアカラーをしたクセ毛やうねりのある毛髪に、ヘアカラーの退色を抑えながら、伸長効果（クセ抑制効果）を実現できることを見出し、本発明を完成するに至った。レブリン酸は、毛髪の触感の改善やダメージ改善の効果及び、ｐＨ調整作用を有することが認められており、化粧品に広く用いられている。しかしながら、毛髪伸長効果（クセ抑制効果）を有することは知られていなかった。 As a result of intensive studies to solve the above-mentioned problems, the present inventor contains a specific amount of levulinic acid and glyoxylic acid, and by adjusting the pH to a range of 1.5 to 3.0, a reducing agent or Eliminates the defects of glyoxylic acid that fades the hair color regardless of the oxidizing agent, and achieves a stretching effect (squeeze suppressing effect) while suppressing the fading of the hair color on the hair with the squeezed hair and the curled hair It has been found that it is possible to complete the present invention. Levulinic acid is recognized to have the effect of improving the feel of hair and the improvement of damage, and having a pH adjusting action, and is widely used in cosmetics. However, it has not been known to have a hair stretching effect (a suppression effect).
すなわち、本発明の毛髪処理剤は、
（ａ）レブリン酸を１３〜３０質量％と、
（ｂ）グリオキシル酸を１〜２質量％と、
を含有し、レブリン酸とグリオキシル酸の含有量の合計が１５質量％以上で、
かつ、ｐＨが１．５〜３．０の範囲であることを特徴とする。That is, the hair treatment agent of the present invention is
(A) 13 to 30% by mass of levulinic acid,
(B) 1 to 2% by mass of glyoxylic acid,
And the total content of levulinic acid and glyoxylic acid is at least 15% by mass,
And, it is characterized in that the pH is in the range of 1.5 to 3.0.
また本発明の毛髪処理方法は、
（１）上記毛髪処理剤を毛髪に塗布する工程、
（２）毛髪を放置する工程、
（３）毛髪を水洗する工程、
（４）毛髪を乾燥した後、表面温度が１４０〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にする、又は、毛髪を乾燥させながらブラシ等でストレート状にする、又は、毛髪を表面温度が１００〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にしながら乾燥させる、又は、毛髪を乾燥させながらブラシ等でストレート状にし、さらに表面温度が１４０〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にする工程、
であることを特徴とする。Moreover, the hair treatment method of the present invention is
(1) applying the hair treatment agent to hair,
(2) a step of leaving the hair,
(3) washing the hair,
(4) After drying the hair, straighten with a hair styling or hair straightening iron with a surface temperature of 140 to 220 ° C, or straighten with a brush etc while drying the hair, or, surface temperature of the hair is Make it dry while making straight with hair setting or hair straightening iron at 100-220 ° C, or make it straight with brush etc while drying the hair, and make it straight with hair setting or hair straightening iron with surface temperature of 140-220 ° C. The process to
It is characterized by being.
本発明に係る毛髪処理剤は、ヘアカラーをしているクセ毛やうねりのある毛髪を、ダメージ及びヘアカラーの退色を抑えながら、伸長（クセを抑制）することができる。
また、本発明に係る毛髪処理剤は、毛髪から水洗するため、その後の毛髪の乾燥及び毛髪をストレート状にする工程が容易となり、毛髪の取り扱い性にも優れている。The hair treatment agent according to the present invention can stretch (reduce the peculiarity) while suppressing the damage and the discoloring of the hair color which have the peculiar hair and the undulation of the hair color.
In addition, since the hair treatment agent according to the present invention is rinsed from the hair, the subsequent drying of the hair and the step of straightening the hair become easy, and the handleability of the hair is also excellent.
＜毛髪処理剤＞
本発明の毛髪処理剤は、（ａ）レブリン酸と、（ｂ）グリオキシル酸とを必須に含有する。以下、本発明について詳述する。Hair treatment agent
The hair treatment agent of the present invention essentially contains (a) levulinic acid and (b) glyoxylic acid. Hereinafter, the present invention will be described in detail.
レブリン酸の配合量は、本発明の毛髪処理剤の全量に対して、１３〜３０質量％、好ましくは１５〜２０質量％である。配合量が１３質量％未満では十分な毛髪伸長効果を得ることができず、一方、３０質量％を超えて配合しても、配合量に見合った毛髪伸長効果の向上は期待できない。 The compounding amount of levulinic acid is 13 to 30% by mass, preferably 15 to 20% by mass, with respect to the total amount of the hair treatment agent of the present invention. If the compounding amount is less than 13% by mass, sufficient hair extension effect can not be obtained. On the other hand, even if it is added in excess of 30% by mass, improvement in hair extension effect commensurate with the compounding amount can not be expected.
グリオキシル酸の配合量は、本発明の毛髪処理剤の全量に対して、１〜２質量％、好ましくは１〜１．５質量％であり、かつ、レブリン酸とグリオキシル酸の配合量の合計量は１５質量％以上である。グリオキシル酸の配合量が１質量％未満では、十分な毛髪伸長効果を得ることができない。グリオキシル酸の配合量が１〜２質量％であっても、レブリン酸とグリオキシル酸の配合量の合計量が１５質量％未満では、十分な毛髪伸長効果を得ることができない。一方、グリオキシル酸の配合量が２質量％を超えると、ヘアカラーを退色させてしまう。 The blending amount of glyoxylic acid is 1 to 2% by mass, preferably 1 to 1.5% by mass, based on the total amount of the hair treatment agent of the present invention, and the total amount of levulinic acid and glyoxylic acid Is 15% by mass or more. If the blending amount of glyoxylic acid is less than 1% by mass, a sufficient hair stretching effect can not be obtained. Even if the blending amount of glyoxylic acid is 1 to 2% by mass, a sufficient hair stretching effect can not be obtained if the total amount of the blending amounts of levulinic acid and glyoxylic acid is less than 15% by mass. On the other hand, if the compounding amount of glyoxylic acid exceeds 2% by mass, the hair color is discolored.
本発明にかかる毛髪処理剤は、レブリン酸とグリオキシル酸以外にも、通常化粧品や医薬品等に用いられる他の成分を、本発明の効果を損なわない範囲内で任意に添加することができる。このような成分として、例えばカチオン性高分子、アニオン性高分子、非イオン高分子、両性高分子、多価アルコール、糖類、アミノ酸、ペプチド、プロテイン、金属イオン封鎖剤、油分、粉末成分、カチオン界面活性剤、アニオン界面活性剤、非イオン界面活性剤、両性界面活性剤、ｐＨ調整剤、増粘剤、粉末成分、香料、粉末成分、色素、水等を含有することができる。 In addition to levulinic acid and glyoxylic acid, the hair treatment agent according to the present invention can optionally contain other components generally used for cosmetics, medicines and the like within the range that does not impair the effect of the present invention. Such components include, for example, cationic polymers, anionic polymers, nonionic polymers, amphoteric polymers, polyhydric alcohols, saccharides, amino acids, peptides, proteins, sequestering agents, oils, powder components, cationic interfaces It can contain an activator, an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, a pH adjuster, a thickener, a powder component, a fragrance, a powder component, a pigment, water, and the like.
本発明の毛髪処理剤は、ｐＨを１．５〜３．０の範囲、好ましくは１．７〜２．７の範囲に保持することが必要である。ｐＨが１．５未満では、毛髪の収斂作用により毛髪の仕上がりの手触りにキシミを生じることがあり、一方、ｐＨが３．０を超えると、十分な毛髪伸長効果を得ることができない。
毛髪処理剤のｐＨを上記範囲に調整するためのアルカリ剤としては、特に限定されるものではないが、水酸化ナトリウムや水酸化カリウム等の無機塩基、トリエタノールアミンやイソプロパノールアミン、塩基性アミノ酸等の有機塩基を用いることができる。The hair treatment agent of the present invention is required to maintain the pH in the range of 1.5 to 3.0, preferably in the range of 1.7 to 2.7. If the pH is less than 1.5, the astringent action of the hair may cause the finish of the hair to be softened, whereas if the pH is more than 3.0, a sufficient hair extension effect can not be obtained.
The alkaline agent for adjusting the pH of the hair treatment agent to the above range is not particularly limited, but an inorganic base such as sodium hydroxide or potassium hydroxide, triethanolamine or isopropanolamine, a basic amino acid, etc. Of organic bases can be used.
本発明にかかる毛髪処理剤の剤型は、所望の効果が充分に発揮されるのであれば特に限定されないが、例えば、液状、乳液状、ゲル状、フォーム状、クリーム状などの剤型を採りうる。 The dosage form of the hair treatment agent according to the present invention is not particularly limited as long as the desired effects can be sufficiently exhibited, but, for example, a dosage form such as liquid, emulsion, gel, foam or cream may be used. sell.
＜毛髪処理方法＞
本発明の毛髪処理方法は、（１）上記毛髪処理剤を毛髪に塗布し、（２）塗布した状態で毛髪を放置して毛髪処理剤を毛髪に十分に作用させ、（３）毛髪を水洗して毛髪処理剤を洗い流し、（４）乾燥及び毛髪をストレート状にする工程を必須に含む。<Hair treatment method>
The hair treatment method of the present invention comprises (1) applying the above-mentioned hair treatment agent to hair and (2) leaving the hair in the applied state to allow the hair treatment agent to fully act on the hair and (3) washing the hair And (4) drying and straightening the hair.
＜（１）塗布工程＞
本発明の毛髪処理剤は、整髪又は毛髪矯正アイロンやブローにてストレート状に整えたドライ毛に適用することも可能であるが、毛髪処理剤が毛髪に浸透しやすいことから、ヘアカラー処理直後のウェット毛、シャンプーで予め洗浄し水分を切ったウェット毛、付着した水分をタオルで取り除いたタオルドライ毛、水や高還元アルカリ水を塗布したウェット毛や、スチーム、ミスト、過熱水蒸気、加圧過熱水蒸気等で処理した毛、に適用することが好ましい。
＜（２）放置工程＞
毛髪処理剤の塗布後、室温（約２５℃）或いは加温にて１０〜４０分間、より好ましくは１５〜２５分間放置し、毛髪処理剤を毛髪に作用させる。放置時間が１０分間未満では、毛髪の十分な伸長効果を得ることができず、一方、放置時間が４０分間を超えても、放置時間に見合った毛髪伸長効果のさらなる向上は期待できない。<(1) Coating process>
The hair treatment agent of the present invention can be applied to dry hair straightened with hair straightening or hair straightening or blowing, but since the hair treatment agent easily penetrates the hair, the hair treatment agent may be applied immediately after the hair color treatment. Wet hair, wet hair washed with shampoo in advance and drained, towel-dried hair with attached moisture removed with towel, wet hair coated with water or highly reduced alkaline water, steam, mist, superheated steam, pressurization It is preferable to apply to hair treated with superheated steam or the like.
<(2) Leaving process>
After application of the hair treatment agent, the hair treatment agent is allowed to act on the hair by standing at room temperature (about 25 ° C.) or heating for 10 to 40 minutes, more preferably for 15 to 25 minutes. If the standing time is less than 10 minutes, a sufficient stretching effect of the hair can not be obtained. On the other hand, even if the standing time exceeds 40 minutes, further improvement of the hair stretching effect corresponding to the standing time can not be expected.
＜（３）水洗工程＞
毛髪をお湯ですすぎ、毛髪処理剤を毛髪から十分に洗い流す。毛髪から毛髪処理剤を洗い流すことにより、その後の毛髪の乾燥及び毛髪をストレート状にする工程が容易となり、毛髪の取り扱い性にも優れている
＜（４）乾燥及び毛髪をストレート状にする工程＞
水洗後、水分をタオルで拭き取った後に、毛髪をヘアドライヤーで乾燥した後、表面温度が１４０〜２２０℃、好ましくは１８０〜２００℃に熱した整髪又は毛髪矯正アイロンで毛髪に機械力及び熱を加えながらストレート状にする、又は、毛髪をヘアドライヤーで乾燥させながらブラシ等でストレート状にする、又は、毛髪を表面温度が１００〜２２０℃、好ましくは１２０〜１８０℃の整髪又は毛髪矯正アイロンでストレート状にしながら乾燥させる又は、毛髪をヘアドライヤーで乾燥させながらブラシ等でストレート状にし、さらに表面温度が１４０〜２２０℃、好ましくは１８０〜２００℃に熱した整髪又は毛髪矯正アイロンで毛髪に機械力及び熱を加えながらストレート状にする。<(3) Washing process>
Rinse the hair with hot water and wash the hair care agent thoroughly from the hair. Washing away the hair treatment agent from the hair facilitates the subsequent drying of the hair and straightening the hair, and is also excellent in the handleability of the hair <(4) Step of drying and straightening the hair>
After washing with water, the moisture is wiped off with a towel, and after drying the hair with a hair dryer, the mechanical force and heat are applied to the hair with a hair styling or hair straightening iron whose surface temperature is heated to 140 to 220 ° C, preferably 180 to 200 ° C. Straighten while adding, or straighten with a brush etc. while drying the hair with a hair drier, or with a hair styling or hair straightening iron with a surface temperature of 100-220 ° C., preferably 120-180 ° C. The hair is straightened, or the hair is dried with a hair drier and straightened with a brush or the like, and the surface temperature is further heated to 140 to 220 ° C., preferably 180 to 200 ° C. Make it straight while applying force and heat.
以下に具体例を挙げて本発明を更に詳細に説明するが、本発明は以下の実施例に限定されるものではない。また、以下の実施例等における配合量は特に断らない限り質量％を示す。 Hereinafter, the present invention will be described in more detail by way of specific examples, but the present invention is not limited to the following examples. Moreover, unless otherwise indicated, the compounding quantity in a following example etc. shows the mass%.
（実施例１〜１３及び比較例１〜６）
下記の表１に掲げた組成を有する毛髪処理剤を、精製水に各成分を均一になるまで撹拌混合することにより調製し、水酸化ナトリウムを添加してｐＨが１．７となるように調節した。
得られた毛髪処理剤の毛髪伸長効果及びヘアカラーの退色抑制効果を、以下の方法により評価した。(Examples 1 to 13 and Comparative Examples 1 to 6)
A hair treatment agent having the composition listed in Table 1 below is prepared by stirring and mixing each component in purified water until it becomes uniform, and sodium hydroxide is added to adjust the pH to 1.7. did.
The hair extension effect of the obtained hair treatment agent and the fading suppressing effect of the hair color were evaluated by the following methods.
＜毛髪伸長効果の評価＞
天然クセ毛（インド人黒毛）を伸長時の長さが１５ｃｍになるように切りそろえ、重さ１ｇの毛束を作成した。ついで、各毛束を市販のシャンプーにて洗浄し、その後市販のブリーチにて１回脱色した後、８レベルのアッシュ系（青味のある色）にて染め、水分を切った毛束を試験毛髪とした。調製した毛髪処理剤を１ｇ塗布し、室温（約２５℃）で２０分間放置する。その後、お湯で十分に毛髪処理剤を洗い流す。
タオルで毛束の水を拭き取ってからドライヤーで乾燥させ、１８０℃に熱した毛髪矯正アイロンを２秒間押し当てて毛髪をストレート状にした。この毛束の一端を固定して垂直方向に吊し、２４時間室温放置した後、下記の評価基準により、１０年以上の美容師経験を有する３名が毛髪伸長効果を評価した。
＜評価基準＞
１．クセが残っており、まとまりが悪い。
２．クセが少し残っており、まとまりがやや悪い。
３．クセはわずかに残っているが、まとまりが良い。
４．クセがほぼ伸びていて、まとまりが良い。
５．クセが伸びていて、ツヤとまとまりが良い。
６．クセが伸びていて、ツヤとまとまりがとても良い。<Evaluation of hair stretching effect>
A natural bunched hair (Indian black hair) was cut so as to have a length of 15 cm when stretched to make a hair bundle weighing 1 g. Next, each hair bundle is washed with a commercially available shampoo, and then decolorized once with a commercially available bleach, and then dyed with 8 levels of ash system (a bluish color), and the hair bundle with water removed is tested It was hair. 1 g of the prepared hair treatment agent is applied and left at room temperature (about 25 ° C.) for 20 minutes. After that, wash the hair treatment agent thoroughly with hot water.
The hair bundle was wiped off with a towel and dried with a drier, and a hair straightening iron heated to 180 ° C. was pressed for 2 seconds to straighten the hair. After fixing one end of this hair bundle and suspending it vertically and leaving it to stand at room temperature for 24 hours, three persons having 10 or more years of beautician experience evaluated the hair extension effect by the following evaluation criteria.
<Evaluation criteria>
1. There is a peculiarity left and it is not well organized.
2. There are a few remaining habits, and the organization is somewhat bad.
3. The habit is slightly left, but it is well organized.
4. The habit is almost extended and it is well organized.
5. The habit is growing and it has good gloss and consistency.
6. The habit is growing, and the gloss is very good.
＜ヘアカラー退色抑制効果の評価＞
毛髪伸長効果の評価で使用した毛束を、基準となる毛束と比較して、下記の評価基準により、１０年以上の美容師経験を有する３名がヘアカラー退色抑制効果を評価した。
基準となる毛束は、以下の手順で作成した。
天然クセ毛（インド人黒毛）を伸長時の長さが１５ｃｍになるように切りそろえ、重さ１ｇの毛束を作成した。ついで、毛束を市販のシャンプーにて洗浄し、その後市販のブリーチにて１回脱色した後、８レベルのアッシュ系（青味のある色）にて染め、タオルで毛束の水を拭き取ってからドライヤーで乾燥させ、１８０℃に熱した毛髪矯正アイロンを２秒間押し当てて毛髪をストレート状にした。この毛束の一端を固定して垂直方向に吊し、２４時間室温放置した。
＜評価基準＞
１．色味が異なる。
２．色味の差があり、違いを感じる。
３．色味の差がわずかにあるが、実使用上問題がない。
４．色味の差がほんのわずかにある。
５．色味の差がほとんどない。<Evaluation of hair color fading suppression effect>
The hair tress used in the evaluation of the hair extension effect was compared with the reference hair tress, and three persons having 10 or more years of beautician experience evaluated the hair color fading inhibitory effect according to the following evaluation criteria.
The reference hair bundle was prepared according to the following procedure.
A natural bunched hair (Indian black hair) was cut so as to have a length of 15 cm when stretched to make a hair bundle weighing 1 g. Next, wash the hair bundle with a commercially available shampoo, then decolorize it with a commercially available bleach, dye it with 8 levels of ash system (a bluish color), and wipe the hair bundle water with a towel. The hair was straightened by pressing a hair straightening iron heated to 180 ° C. for 2 seconds. One end of this hair bundle was fixed and hung vertically, and left at room temperature for 24 hours.
<Evaluation criteria>
1. The color is different.
2. There is a difference in color, I feel the difference.
3. There is a slight difference in color but there is no problem in practical use.
4. There is only a slight difference in color.
5. There is almost no difference in color.
実施例１〜１３に示されるように、レブリン酸を１３〜３０質量％と、グリオキシル酸の５０％水溶液を２〜４質量％、すなわち純分でグリオキシル酸を１〜２質量％とを含有し、かつ、レブリン酸とグリオキシル酸の含有量の合計量が１５質量％以上の毛髪処理剤を用いた場合に、十分な毛髪伸長効果及びヘアカラー退色抑制効果が得られた。これに対し、比較例１〜６に示されるように、レブリン酸及びグリオキシル酸の配合量が上記範囲外である場合には、毛髪伸長効果又はヘアカラー退色抑制効果が不十分であった。 As shown in Examples 1 to 13, it contains 13 to 30% by mass of levulinic acid and 2 to 4% by mass of a 50% aqueous solution of glyoxylic acid, that is, 1 to 2% by mass of glyoxylic acid in pure part And when the total of the content of levulinic acid and glyoxylic acid used a hair treatment agent having a content of 15% by mass or more, a sufficient hair stretching effect and a hair color fading suppressing effect were obtained. On the other hand, as shown in Comparative Examples 1 to 6, when the compounding amount of levulinic acid and glyoxylic acid is out of the above range, the hair stretching effect or the hair color fading suppressing effect is insufficient.
（実施例１４〜１９及び比較例７〜９）
下記の表２に掲げた組成を有する毛髪処理剤を、精製水に各成分を均一になるまで撹拌混合することにより調製した。水酸化ナトリウムの添加量を調節して、表２に記載のｐＨとした。得られた毛髪処理剤の毛髪伸長効果及びヘアカラー退色抑制効果を、前記の基準に従って評価した。(Examples 14 to 19 and Comparative Examples 7 to 9)
A hair treatment agent having the composition listed in Table 2 below was prepared by stirring and mixing each component in purified water until uniform. The amount of sodium hydroxide added was adjusted to obtain the pH described in Table 2. The hair-stretching effect and hair color fading inhibitory effect of the obtained hair treatment agent were evaluated according to the above-mentioned criteria.
実施例１４〜１９に示されるように、ｐＨを１．５〜３．０の範囲に調節した毛髪処理剤を用いた場合に、十分な毛髪伸長効果及びヘアカラー退色抑制効果が得られた。これに対し、比較例７〜９に示されるように、ｐＨが上記範囲外である場合には、毛髪伸長効果が不十分であった。 As shown in Examples 14 to 19, when the hair treatment agent whose pH is adjusted to 1.5 to 3.0 is used, a sufficient hair stretching effect and a hair coloration suppressing effect are obtained. On the other hand, as shown in Comparative Examples 7 to 9, when the pH was outside the above range, the hair stretching effect was insufficient.
Claims (2)
（ｂ）グリオキシル酸を１〜２質量％と、
を含有し、レブリン酸とグリオキシル酸の含有量の合計が１５質量％以上で、かつ、ｐＨが１．５〜３．０の範囲であることを特徴とする毛髪処理剤。(A) 13 to 30% by mass of levulinic acid,
(B) 1 to 2% by mass of glyoxylic acid,
A hair treatment agent characterized in that the total content of levulinic acid and glyoxylic acid is 15% by mass or more, and the pH is in the range of 1.5 to 3.0.
（２）毛髪を放置する工程、
（３）毛髪を水洗する工程、
（４）毛髪を乾燥した後、表面温度が１４０〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にする、又は、毛髪を乾燥させながらブラシ等でストレート状にする、又は、毛髪を表面温度が１００〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にしながら乾燥させる、又は、毛髪を乾燥させながらブラシ等でストレート状にし、さらに表面温度が１４０〜２２０℃の整髪又は毛髪矯正アイロンでストレート状にする工程、
であることを特徴とする毛髪処理方法。(1) applying a hair treatment agent according to claim 1 to hair;
(2) a step of leaving the hair,
(3) washing the hair,
(4) After drying the hair, straighten with a hair styling or hair straightening iron with a surface temperature of 140 to 220 ° C, or straighten with a brush etc while drying the hair, or, surface temperature of the hair is Make it dry while making straight with hair setting or hair straightening iron at 100-220 ° C, or make it straight with brush etc while drying the hair, and make it straight with hair setting or hair straightening iron with surface temperature of 140-220 ° C. The process to
A hair treatment method characterized in that
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2021070679A (en) * | 2019-11-01 | 2021-05-06 | 株式会社イングラボ | Hair treatment agent |
| JP2021187822A (en) * | 2020-05-25 | 2021-12-13 | 株式会社イングラボ | Hair treatment agent |
| IT202100016733A1 (en) * | 2021-06-25 | 2022-12-25 | Beauty & Business S P A | HAIR STRAIGHTENING COMPOSITIONS |
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| JP2021070679A (en) * | 2019-11-01 | 2021-05-06 | 株式会社イングラボ | Hair treatment agent |
| JP2021187822A (en) * | 2020-05-25 | 2021-12-13 | 株式会社イングラボ | Hair treatment agent |
| IT202100016733A1 (en) * | 2021-06-25 | 2022-12-25 | Beauty & Business S P A | HAIR STRAIGHTENING COMPOSITIONS |
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