JP2023104331A - Pretreating agent for hair dyeing and pretreating method for hair dyeing - Google Patents

Pretreating agent for hair dyeing and pretreating method for hair dyeing Download PDF

Info

Publication number
JP2023104331A
JP2023104331A JP2022005251A JP2022005251A JP2023104331A JP 2023104331 A JP2023104331 A JP 2023104331A JP 2022005251 A JP2022005251 A JP 2022005251A JP 2022005251 A JP2022005251 A JP 2022005251A JP 2023104331 A JP2023104331 A JP 2023104331A
Authority
JP
Japan
Prior art keywords
hair
dyeing
hair dyeing
pretreatment agent
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2022005251A
Other languages
Japanese (ja)
Inventor
孝幸 富樫
Takayuki Togashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arimino Co Ltd
Original Assignee
Arimino Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arimino Co Ltd filed Critical Arimino Co Ltd
Priority to JP2022005251A priority Critical patent/JP2023104331A/en
Publication of JP2023104331A publication Critical patent/JP2023104331A/en
Pending legal-status Critical Current

Links

Abstract

To provide a pretreating agent for hair dyeing and a pretreating method for hair dyeing which improve dyeability and uniform-dyeing property by applying to hair before hair dyeing treatment, have excellent suppression of skin stains while improving color fastness and impart smoothness and an elastic feeling to the hair.SOLUTION: There is provided a pretreating agent for hair dyeing which contains 10-60 mass% of an ether alcohol (A) represented by the following formula (X) and water, wherein the mass ratio ((A): water) between the ether alcohol and water is 1:9 to 3:2. (wherein, R represents an alkyl group having 1 to 5 carbon atoms; n represents 1 or 2.)SELECTED DRAWING: None

Description

本発明は、染毛用前処理剤および染毛用前処理方法に関する。 The present invention relates to a pretreatment agent for hair dyeing and a pretreatment method for hair dyeing.

現在、染毛剤の主流となっている酸化染毛剤(アルカリカラー)は、染色力および染毛後の毛髪の色持ちに優れるが、毛髪の損傷程度によっては色むらが生じたり、染毛時のダメージによりパサつき、指通りが悪くなるという問題がある。 Oxidative hair dyes (alkali colors), which are currently the mainstream of hair dyes, are excellent in dyeing power and color retention after dyeing, but depending on the degree of damage to the hair, color unevenness may occur. There is a problem that it becomes dry due to damage from time and it becomes difficult to pass with fingers.

タール色素を含む酸性染毛料(ヘアマニキュア)は、染毛時のダメージやかぶれの心配が少なく、手軽に使用できるため消費者に受け入れられ、市場に占める割合が高まっている。しかしながら、酸性染毛料は、染色力や均染性の低さ、染毛後の毛髪の色持ちの悪さが問題となっている。特に、染色力については、ベンジルアルコール、2-ベンジルオキシエタノールといった浸透促進剤等の技術開発が進み、向上した一方、頭皮等の地肌が汚れるといった問題が生じている。 Acidic hair dyes (hair manicures) containing tar pigments are less likely to damage or irritate hair during dyeing, and are easy to use. However, acid hair dyes have problems of low dyeing power and levelness, and poor hair color retention after dyeing. In particular, with regard to dyeing power, technological development of permeation enhancers such as benzyl alcohol and 2-benzyloxyethanol has progressed and improved, but there is a problem that the skin such as the scalp is stained.

このような背景から、酸化染毛剤では、均染性、パサつき、指通りの向上が求められ、酸性染毛料では、均染性、染毛後の毛髪の色持ちに優れ、地肌汚れのないものが求められている。 Against this background, oxidative hair dyes are required to improve levelness, dryness, and ease of combing with fingers. What is missing is sought after.

これまでの技術として、例えば、特許文献1では、酸性染毛料による染毛の染色性を向上させ、かつ染毛後の毛髪の色持ちを良くする酸性染毛料用前処理組成物が開示されている。特許文献2では、酸性染毛料の染色性および堅牢性の向上を目的とした毛髪の損傷の少ない前処理剤が開示されている。特許文献3では、酸性染毛料による染毛染色の立ち上がりを速くし、均一に染色させ、または酸化染毛剤による毛髪の損傷を少なくし、毛髪に艶や潤いを付与する染毛用前処理剤が開示されている。 As a conventional technique, for example, Patent Document 1 discloses a pretreatment composition for acidic hair dye that improves the dyeability of hair dyed with an acidic hair dye and improves the color retention of hair after dyeing. there is Patent Literature 2 discloses a pretreatment agent that causes little hair damage and is intended to improve the dyeability and fastness of an acidic hair dye. In Patent Document 3, a pretreatment agent for hair dyeing that accelerates the rise of hair dyeing with an acid hair dye, dyes it uniformly, or reduces hair damage caused by an oxidative hair dye, and imparts luster and moisture to the hair. is disclosed.

特開2000-169344号公報JP-A-2000-169344 特開2007-126384号公報JP 2007-126384 A 特開平11-139940号公報JP-A-11-139940

しかしながら、特許文献1の技術では、染色力は上がるものの、毛髪の損傷がかなり大きかった。一方、特許文献2の技術では、毛髪損傷が少なく、酸性染毛料の染色性及び堅牢性を向上させる効果はあったものの、均染性については満足な品質ではなかった。また、特許文献3の技術では、染料が毛髪に接する前に、特定のケラチン加水分解物またはその誘導体等を特定量含有する染毛料前処理剤で毛髪の損傷部位を保護し、均染性の向上を図っていたが、特定のケラチン加水分解物等が毛髪の損傷部分のみに吸着するため、健康な部分との均一性に乏しく、充分な均染性は得られなかった。 However, with the technique of Patent Document 1, although the dyeing power is increased, the damage to the hair is considerably large. On the other hand, the technique of Patent Document 2 causes less hair damage and has the effect of improving the dyeability and fastness of the acid hair dye, but the quality of level dyeing is not satisfactory. In addition, in the technique of Patent Document 3, before the dye comes into contact with the hair, a hair dye pretreatment agent containing a specific amount of a specific keratin hydrolyzate or a derivative thereof is used to protect the damaged part of the hair and improve the uniformity of dyeing. Although efforts have been made to improve it, the specific keratin hydrolyzate, etc., is adsorbed only to the damaged portion of the hair, resulting in poor uniformity with the healthy portion, and sufficient levelness of dyeing has not been obtained.

このようなことから、本発明は、染毛処理の前に毛髪に塗布することで、染色性および均染性を向上させ、あわせて、染色堅牢性を向上させつつ、地肌汚れの抑制にも優れ、さらに、毛髪の滑らかさおよび弾力感を付与する染毛用前処理剤および染毛用前処理方法を提供することを課題とする。 For this reason, the present invention improves the dyeability and levelness by applying it to the hair before the hair dyeing treatment, and at the same time, improves the color fastness and suppresses the background stains. An object of the present invention is to provide a pretreatment agent for hair dyeing and a pretreatment method for hair dyeing, which are excellent and further impart smoothness and elasticity to the hair.

本発明者らは上記課題を解決すべく鋭意検討した。その結果、以下の構成を有する染毛用前処理剤および染毛用前処理方法は上記課題を解決できることを見出し、本発明を完成するに至った。 The present inventors have diligently studied to solve the above problems. As a result, the inventors have found that a pretreatment agent for hair dyeing and a pretreatment method for hair dyeing having the following constitution can solve the above problems, and have completed the present invention.

本発明は、例えば以下の[1]~[8]である。
[1]下記式(X)で示されるエーテルアルコール(A)を10~60質量%と、水とを含み、前記エーテルアルコール(A)と水との質量比((A):水)が1:9~3:2である、染毛用前処理剤。

Figure 2023104331000001
〔式中、Rは炭素数1~5のアルキル基を示し、nは1または2を示す。〕
[2]水溶性エステル類(B)を0.1~5質量%含む、[1]に記載の染毛用前処理剤。
[3]アミノ酸類(C)を0.001~0.2質量%含む、[1]または[2]に記載の染毛用前処理剤。
[4]ヒドロキシ酸類(D)を0.1~3質量%含む、[1]~[3]のいずれかに記載の染毛用前処理剤。
[5]ミスト状またはフォーム状で毛髪に塗布する、[1]~[4]のいずれかに記載の染毛用前処理剤。
[6]白髪の染毛に用いられる、[1]~[5]のいずれかに記載の染毛用前処理剤。
[7]剤型が非乳化型である、[1]~[6]のいずれかに記載の染毛用前処理剤。
[8][1]~[7]のいずれかに記載の染毛用前処理剤を毛髪に塗布する工程(I)、工程(I)の後、染毛用前処理剤が塗布されたままの毛髪に、さらに酸性染毛料または酸化染毛剤を毛髪に塗布する工程(II)を有する、染毛用前処理方法。 The present invention is, for example, the following [1] to [8].
[1] Contains 10 to 60% by mass of an ether alcohol (A) represented by the following formula (X) and water, and the mass ratio of the ether alcohol (A) to water ((A): water) is 1 : 9 to 3:2, a pretreatment agent for hair dyeing.
Figure 2023104331000001
[In the formula, R represents an alkyl group having 1 to 5 carbon atoms, and n represents 1 or 2. ]
[2] The pretreatment agent for hair dyeing according to [1], containing 0.1 to 5% by mass of water-soluble esters (B).
[3] The pretreatment agent for hair dyeing according to [1] or [2], containing 0.001 to 0.2% by mass of amino acids (C).
[4] The pretreatment agent for hair dyeing according to any one of [1] to [3], containing 0.1 to 3% by mass of hydroxy acids (D).
[5] The pretreatment agent for hair dyeing according to any one of [1] to [4], which is applied to the hair in the form of mist or foam.
[6] The pretreatment agent for hair dyeing according to any one of [1] to [5], which is used for dyeing gray hair.
[7] The pretreatment agent for hair dyeing according to any one of [1] to [6], which is in a non-emulsified formulation.
[8] Step (I) of applying the hair dyeing pretreatment agent according to any one of [1] to [7] to the hair, and after step (I), the hair dyeing pretreatment agent remains applied. and a step (II) of applying an acid hair dye or an oxidative hair dye to the hair.

本発明は、染毛処理の前に毛髪に塗布することで、染色性および均染性を向上させ、あわせて、染色堅牢性を向上させつつ、地肌汚れの抑制にも優れ、さらに、毛髪の滑らかさおよび弾力感を付与する染毛用前処理剤および染毛用前処理方法を提供することができる。 The present invention improves dyeability and levelness by applying it to hair before hair dyeing treatment, and at the same time, improves color fastness while also being excellent in suppressing background stains. A pretreatment agent for hair dyeing and a pretreatment method for hair dyeing that impart smoothness and elasticity can be provided.

次に本発明の染毛用前処理剤および染毛用前処理方法について具体的に説明する。 Next, the pretreatment agent for hair dyeing and the pretreatment method for hair dyeing of the present invention will be specifically described.

<染毛用前処理剤>
本発明の染毛用前処理剤は、下記式(X)で示されるエーテルアルコール(A)を10~60質量%と、水とを含み、前記エーテルアルコール(A)と水との質量比((A):水)が1:9~3:2である。
<Pretreatment agent for hair dye>
The hair dyeing pretreatment agent of the present invention contains 10 to 60% by mass of an ether alcohol (A) represented by the following formula (X) and water, and the mass ratio of the ether alcohol (A) to water ( (A):water) is 1:9 to 3:2.

Figure 2023104331000002
〔式中、Rは炭素数1~5のアルキル基を示し、nは1または2を示す。〕
Figure 2023104331000002
[In the formula, R represents an alkyl group having 1 to 5 carbon atoms, and n represents 1 or 2. ]

なお、本発明における各成分の含有量は、染毛用前処理剤を100質量%とした場合の含有量を示している。
本発明の染毛用前処理剤は、毛髪の染毛処理の前に毛髪に塗布して用いることができる。
毛髪の染毛処理としては、例えば、酸性染毛料および酸化染毛剤による染毛処理が挙げられる。
In addition, content of each component in this invention has shown content when the pretreatment agent for hair dyeing is 100 mass %.
The pretreatment agent for hair dyeing of the present invention can be used by applying it to the hair before dyeing the hair.
Hair dyeing treatments include, for example, hair dyeing treatments with acidic hair dyes and oxidative hair dyes.

本発明の染毛用前処理剤は、酸性染毛料または酸化染毛剤による染毛処理の前に毛髪に塗布して用いることができる。
本発明の染毛用前処理剤は、染色性および均染性の向上効果と地肌汚れ抑制効果との両立に優れることから、酸性染毛料による染毛処理の前に用いることが好ましい。
The pretreatment agent for hair dyeing of the present invention can be used by applying it to the hair before hair dyeing treatment with an acidic hair dye or an oxidative hair dye.
Since the pretreatment agent for hair dyeing of the present invention is excellent in both the effect of improving dyeability and leveling property and the effect of suppressing background stains, it is preferably used before hair dyeing treatment with an acidic hair dye.

<エーテルアルコール(A)>
本発明の染毛用前処理剤は、下記式(X)で示されるエーテルアルコール(A)を10~60質量%、好ましくは20~50質量%、より好ましくは30~40質量%と、水とを含み、前記エーテルアルコール(A)と水との質量比((A):水)が1:9~3:2、好ましくは、1:4~1:1、より好ましくは3:7~2:3である。
<Ether alcohol (A)>
The pretreatment agent for hair dyeing of the present invention contains 10 to 60% by mass, preferably 20 to 50% by mass, more preferably 30 to 40% by mass of an ether alcohol (A) represented by the following formula (X), and water and the mass ratio of the ether alcohol (A) and water ((A):water) is 1:9 to 3:2, preferably 1:4 to 1:1, more preferably 3:7 to 2:3.

Figure 2023104331000003
〔式中、Rは炭素数1~5のアルキル基を示し、nは1または2を示す。〕
本発明において、上記式(X)で示されるエーテルアルコール(A)を成分(A)とも記す。
Figure 2023104331000003
[In the formula, R represents an alkyl group having 1 to 5 carbon atoms, and n represents 1 or 2. ]
In the present invention, the ether alcohol (A) represented by the above formula (X) is also referred to as component (A).

成分(A)が前記範囲内で含まれていると、染色性および均染性を向上させ、染色堅牢性の向上、滑らかさ、地肌汚れの抑制にも優れる。
成分(A)が前記下限量より少ないと、染色性および均染性の向上の効果が得られにくく、染色堅牢性の向上、滑らかさ、地肌汚れの抑制の効果も得られにくい傾向がある。
When the component (A) is contained within the above range, the dyeability and levelness are improved, and the dyeing fastness is improved, the smoothness is excellent, and the suppression of background staining is also excellent.
If the amount of component (A) is less than the above lower limit, it is difficult to obtain the effects of improving dyeability and levelness, and it tends to be difficult to obtain the effects of improving color fastness, smoothness, and suppressing background staining.

成分(A)が前記上限量より多いと、毛髪に染色された色味が、染色前に想定した色味と異なってしまう場合がある。
成分(A)と水との質量比((A):水)が前記範囲内であると、染色性および均染性を向上させ、染色堅牢性の向上、滑らかさ、地肌汚れの抑制にも優れる。
If the amount of component (A) exceeds the above upper limit, the color of the hair dyed may differ from the color expected before dyeing.
When the mass ratio of component (A) to water ((A):water) is within the above range, dyeability and levelness are improved, color fastness is improved, smoothness is improved, and background staining is suppressed. Excellent.

成分(A)と水との質量比((A):水)が前記範囲外であると、染色性および均染性の向上の効果が得られにくく、染色堅牢性の向上、滑らかさ、地肌汚れの抑制の効果も得られにくい傾向がある。また、毛髪に染色された色味が、染色前に想定した色味と異なってしまう場合がある。 If the mass ratio of component (A) to water ((A):water) is outside the above range, it is difficult to obtain the effect of improving dyeability and levelness, and colorfastness is improved, smoothness is improved, and texture is improved. There is also a tendency that it is difficult to obtain the effect of suppressing contamination. In addition, the color of the hair dyed may differ from the color expected before dyeing.

上記式(X)において、Rは炭素数1~5のアルキル基を示し、Rが炭素数2~5であることが好ましく、Rが炭素数2~4であることがより好ましい。
上記式(X)において、nは1または2を示し、nが2であることが好ましい。
In the above formula (X), R represents an alkyl group having 1 to 5 carbon atoms, preferably 2 to 5 carbon atoms, more preferably 2 to 4 carbon atoms.
In the above formula (X), n represents 1 or 2, preferably 2.

本発明において、成分(A)としては、例えば、エチレングリコールモノアルキルエーテルおよびジエチレングリコールモノアルキルエーテルが挙げられる。
成分(A)として、具体的には、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、エチレングリコールモノプロピルエーテル、エチレングリコールモノブチルエーテル、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノプロピルエーテル、ジエチレングリコールブチルモノエーテルが挙げられる。
In the present invention, component (A) includes, for example, ethylene glycol monoalkyl ether and diethylene glycol monoalkyl ether.
Specific examples of component (A) include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol butyl mono ethers.

これらの中でも、成分(A)が、エチレングリコールモノブチルエーテルおよびジエチレングリコールモノエチルエーテルから選択される少なくとも1種であることが好ましく、ジエチレングリコールモノエチルエーテルがより好ましい。
成分(A)は、1種単独で用いても、2種以上組み合わせて用いてもよい。
Among these, component (A) is preferably at least one selected from ethylene glycol monobutyl ether and diethylene glycol monoethyl ether, more preferably diethylene glycol monoethyl ether.
Component (A) may be used alone or in combination of two or more.

<水溶性エステル類(B)>
本発明の染毛用前処理剤は、水溶性エステル類(B)を好ましくは0.1~5質量%、より好ましくは0.5~2質量%含む。
本発明において、水溶性エステル類とは、アルコール、水、界面活性剤水溶液等の水系溶剤に、0.5質量%以上溶解するエステル類のことを指す。
本発明において、水溶性エステル類(B)を成分(B)とも記す。
<Water-soluble esters (B)>
The pretreatment agent for hair dyeing of the present invention preferably contains 0.1 to 5% by mass, more preferably 0.5 to 2% by mass of the water-soluble ester (B).
In the present invention, water-soluble esters refer to esters that dissolve in water-based solvents such as alcohol, water, and aqueous surfactant solutions in an amount of 0.5% by mass or more.
In the present invention, water-soluble esters (B) are also referred to as component (B).

成分(B)が前記範囲内であると、染色性および均染性、滑らかさが向上するため好ましい。
成分(B)が前記下限量より少ないと、染色性および均染性の向上効果が得られにくい場合や、滑らかさの向上効果が得られにくい場合がある。
It is preferable that the content of component (B) is within the above range because dyeability, levelness and smoothness are improved.
If the amount of component (B) is less than the lower limit, it may be difficult to obtain the effect of improving dyeability and levelness, or it may be difficult to obtain the effect of improving smoothness.

成分(B)が前記上限量より多いと、毛髪に染色された色味が、染色前に想定した色味とやや異なってしまう場合や、染毛後の毛髪が硬く感じる場合がある。
成分(B)としては、例えば、コハク酸ジエトキシエチル、コハク酸ビスエトキシジグリコール、シクロヘキサンジカルボン酸ビスエトキシジグリコール、(エイコサン二酸/テトラデカン二酸)ポリグリセリル-10、テトラデカン二酸ポリグリセリル-10が挙げられる。
If the amount of component (B) is more than the above upper limit, the color of the dyed hair may be slightly different from the color expected before dyeing, or the hair may feel stiff after dyeing.
Examples of component (B) include diethoxyethyl succinate, bisethoxydiglycol succinate, bisethoxydiglycol cyclohexanedicarboxylate, (eicosanedioic acid/tetradecanedioic acid) polyglyceryl-10, and tetradecanedioic acid polyglyceryl-10. mentioned.

これらの中でも、染色性および均染性、滑らかさの向上に優れることから、成分(B)が、コハク酸ジエトキシエチルおよびコハク酸ビスエトキシジグリコールから選択される少なくとも1種であることがより好ましく、コハク酸ジエトキシエチルがさらに好ましい。
成分(B)は、1種単独で用いても、2種以上組み合わせて用いてもよい。
Among these, the component (B) is more preferably at least one selected from diethoxyethyl succinate and bisethoxydiglycol succinate because it is excellent in improving dyeability, levelness and smoothness. Preferred is diethoxyethyl succinate, more preferred is diethoxyethyl succinate.
Component (B) may be used alone or in combination of two or more.

<アミノ酸類(C)>
本発明の染毛用前処理剤は、アミノ酸類(C)を好ましくは0.001~0.2質量%、より好ましくは0.01~0.1質量%含む。
本発明において、アミノ酸類とは、アミノ酸とその塩を指す。
<Amino acids (C)>
The pretreatment agent for hair dyeing of the present invention preferably contains 0.001 to 0.2% by mass, more preferably 0.01 to 0.1% by mass of amino acids (C).
In the present invention, amino acids refer to amino acids and salts thereof.

アミノ酸類(C)が前記範囲内であると、染色性と弾力感が向上するため好ましい。
アミノ酸類(C)が前記下限量より少ないと、染色性および弾力感の向上効果が得られにくい場合がある。
アミノ酸類(C)が前記上限量より多いと、毛髪に染色された色味が、染色前に想定した色味とやや異なってしまう場合や、染毛後の毛髪が硬く感じたり、べたつきを感じることがある。
It is preferable that the amount of amino acids (C) is within the above range, because the dyeability and elasticity are improved.
If the amount of amino acids (C) is less than the lower limit, it may be difficult to obtain the effect of improving dyeability and elasticity.
If the amount of amino acids (C) is more than the above upper limit, the color of the dyed hair may be slightly different from the color expected before dyeing, or the hair may feel stiff or sticky after dyeing. Sometimes.

アミノ酸類(C)としては、例えば、イソロイシン、ロイシン、リジン、メチオニン、フェニルアラニン、トレオニン(スレオニン)、トリプトファン、バリン、ヒスチジン、チロシン、システイン、アスパラギン酸、アスパラギン、セリン、グルタミン酸、グルタミン、プロリン、グリシン、アラニン、アルギニン、テアニン、オルニチン、シトルリン、タウリン、およびこれらの塩が挙げられる。 Examples of amino acids (C) include isoleucine, leucine, lysine, methionine, phenylalanine, threonine (threonine), tryptophan, valine, histidine, tyrosine, cysteine, aspartic acid, asparagine, serine, glutamic acid, glutamine, proline, glycine, Alanine, arginine, theanine, ornithine, citrulline, taurine, and salts thereof.

これらの中でも、染色性および弾力感の向上に優れることから、アミノ酸類(C)が、グリシン、アルギニンから選択される少なくとも1種であることがより好ましく、グリシンおよびアルギニンを併用することがさらに好ましい。 Among these, it is more preferable that the amino acid (C) is at least one selected from glycine and arginine, and it is even more preferable to use glycine and arginine in combination, since they are excellent in improving dyeability and elasticity. .

アミノ酸類(C)として、グリシンおよびアルギニンを併用する場合は、グリシンとアルギニンとの質量比(グリシン:アルギニン)がより好ましくは200:1~5:1、さらに好ましくは100:1~5:1である。 When glycine and arginine are used in combination as amino acids (C), the mass ratio of glycine and arginine (glycine:arginine) is more preferably 200:1 to 5:1, more preferably 100:1 to 5:1. is.

グリシンとアルギニンとの質量比(グリシン:アルギニン)が上記範囲内であると、染色性および弾力感の向上に優れるため好ましい。
アミノ酸類(C)は、1種単独で用いても、2種以上組み合わせて用いてもよい。
It is preferable that the mass ratio of glycine and arginine (glycine:arginine) is within the above range, because the dyeability and elasticity are excellently improved.
Amino acids (C) may be used singly or in combination of two or more.

<ヒドロキシ酸類(D)>
本発明の染毛用前処理剤は、ヒドロキシ酸類(D)を好ましくは0.1~3質量%、より好ましくは0.5~1.5質量%含む。
<Hydroxy acids (D)>
The pretreatment agent for hair dyeing of the present invention preferably contains 0.1 to 3% by mass, more preferably 0.5 to 1.5% by mass of hydroxy acids (D).

本発明において、ヒドロキシ酸類とは、ヒドロキシ酸とその塩を指す。また、ヒドロキシ酸とは、ヒドロキシ基を有するカルボン酸のことをいう。
ヒドロキシ酸類(D)が前記範囲内であると、染色性および染色堅牢性が向上するため好ましい。
In the present invention, hydroxy acids refer to hydroxy acids and salts thereof. Moreover, hydroxy acid refers to a carboxylic acid having a hydroxy group.
It is preferable that the hydroxy acid (D) is within the above range because the dyeability and color fastness are improved.

ヒドロキシ酸類(D)が前記下限量より少ないと、染色性および染色堅牢性の向上効果が得られにくい場合がある。
ヒドロキシ酸類(D)が前記上限量より多いと、毛髪に染色された色味が、染色前に想定した色味とやや異なってしまい、染色性および染色堅牢性向上効果が得にくい場合や、染毛後の毛髪が硬く感じたり、べたつきを感じることがある。
If the amount of hydroxy acids (D) is less than the lower limit, it may be difficult to obtain the effect of improving dyeability and color fastness.
If the hydroxy acid (D) is more than the above upper limit, the color of the hair dyed will be slightly different from the color expected before dyeing. The hair may feel stiff or sticky.

ヒドロキシ酸類(D)としては、例えば、乳酸、グリコール酸、リンゴ酸、クエン酸、およびこれらの塩が挙げられる。
これらの中でも、染色性および染色堅牢性の向上に優れることから、ヒドロキシ酸類(D)が、乳酸およびグリコールから選択される少なくとも1種であることがより好ましく、乳酸であることがさらに好ましい。
Hydroxy acids (D) include, for example, lactic acid, glycolic acid, malic acid, citric acid, and salts thereof.
Among these, the hydroxy acid (D) is more preferably at least one selected from lactic acid and glycol, and more preferably lactic acid, because it is excellent in improving dyeability and color fastness.

なお、酸化染毛剤による染毛処理の場合には、本発明の染毛用前処理剤は、ヒドロキシ酸類(D)により、毛髪をより酸性にすることで、主にアルカリ性で用いられる酸化染毛剤の染色効果を抑制する可能性があることから、ヒドロキシ酸類(D)を配合しない、あるいはヒドロキシ酸類(D)の含有量が0.1質量%未満であることが好ましい。
ヒドロキシ酸類(D)は、1種単独で用いても、2種以上組み合わせて用いてもよい。
In the case of hair dyeing treatment with an oxidative hair dye, the pretreatment agent for hair dyeing of the present invention is mainly used for alkaline oxidation dyeing by making the hair more acidic with hydroxy acids (D). It is preferable that the hydroxy acid (D) is not blended, or the content of the hydroxy acid (D) is less than 0.1% by mass, because the dyeing effect of the hair agent may be suppressed.
The hydroxy acids (D) may be used singly or in combination of two or more.

<pH>
本発明の染毛用前処理剤は、pHが2~10であることが好ましい。
本発明の染毛用前処理剤において、ヒドロキシ酸類(D)を配合していない場合は、pHが3~5であることが好ましい。ヒドロキシ酸類(D)を配合した場合は、pHが2~5であることが好ましく、pHが2~4であることがより好ましい。
<pH>
The pretreatment agent for hair dyeing of the present invention preferably has a pH of 2-10.
The pretreatment agent for hair dyeing of the present invention preferably has a pH of 3 to 5 when the hydroxy acid (D) is not blended. When a hydroxy acid (D) is blended, the pH is preferably 2-5, more preferably 2-4.

《その他成分》
本発明の染毛用前処理剤は、水を含む。水として、具体的には、水道水、イオン交換水、蒸留水、精製水および天然水が挙げられ、殺菌済みのものが好ましい。
《Other ingredients》
The pretreatment agent for hair dyeing of the present invention contains water. Specific examples of water include tap water, ion-exchanged water, distilled water, purified water and natural water, preferably sterilized water.

本発明の染毛用前処理剤は、本発明の効果を損なわない範囲で、前記成分以外に任意の成分を含有することができる。任意の成分としては、例えば、保湿剤、生薬類、キレート剤、防腐剤、酸化防止剤、清涼剤、帯電防止剤、ビタミン類、タンパク質、香料、抗菌剤、増粘剤、乳化剤、乳化安定剤、界面活性剤、高級アルコール、シリコーン類、油剤、溶剤、および色素が挙げられる。 The pretreatment agent for hair dyeing of the present invention can contain optional components other than the above components within a range that does not impair the effects of the present invention. Optional ingredients include, for example, moisturizers, crude drugs, chelating agents, preservatives, antioxidants, cooling agents, antistatic agents, vitamins, proteins, fragrances, antibacterial agents, thickeners, emulsifiers, emulsion stabilizers. , surfactants, higher alcohols, silicones, oils, solvents, and dyes.

本発明の染毛用前処理剤は、任意の成分として、具体的には、可溶化剤としてPEG-60水添ヒマシ油;防腐剤としてフェノキシエタノール;気泡剤としてポリオキシエチレンラウリルエーテル、ラウラミンオキシドを用いることができる。 The pretreatment agent for hair dyeing of the present invention comprises, as optional components, specifically, PEG-60 hydrogenated castor oil as a solubilizer; phenoxyethanol as a preservative; and polyoxyethylene lauryl ether and lauramine oxide as foaming agents. can be used.

《製法等》
本発明の染毛用前処理剤は、上述した各成分を上述の量で使用する以外は、例えば公知の方法で、撹拌、混合、加熱、溶解、分散等することによって製造することができ、製造方法は特に限定されない。製造方法としては各成分を均一に混合するために、加熱条件下で行ってもよい。加熱条件下で製造する場合の温度としては、例えば75~85℃が挙げられる。
《Manufacturing method》
The pretreatment agent for hair dyeing of the present invention can be produced by stirring, mixing, heating, dissolving, dispersing, etc. by a known method, except that each component described above is used in the amount described above. The manufacturing method is not particularly limited. The manufacturing method may be carried out under heating conditions in order to uniformly mix each component. The temperature for production under heating conditions is, for example, 75 to 85°C.

《剤型》
本発明の染毛用前処理剤の状態としては、例えば、固形、液状、クリーム状、ジェル状、ローション状、エアゾールフォーム状、ポンプフォーム状、スクイズフォーム状、およびミスト状が挙げられる。これらの中でも、本発明の染毛用前処理剤の状態としては、毛髪への塗布のしやすさや付着しやすさの観点から、ミスト状およびポンプフォーム状が好ましい。
《Dosage form》
Examples of the state of the hair dyeing pretreatment agent of the present invention include solid, liquid, cream, gel, lotion, aerosol foam, pump foam, squeeze foam, and mist. Among these, the state of the pretreatment agent for hair dyeing of the present invention is preferably a mist state or a pump foam state from the viewpoint of ease of application to hair and ease of adhesion.

本発明の染毛用前処理剤は、染色性を向上させるという効果を充分に発揮し、剤を安定に保つという観点から、剤型が非乳化型であることが好ましい。
本発明の染毛用前処理剤の外観は、例えば、透明または不透明な外観が挙げられるが、本発明の染毛用前処理剤は各種配合成分を均一に混合する観点から、透明な外観が好ましい。
The pretreatment agent for hair dyeing of the present invention preferably has a non-emulsifying formulation from the viewpoint of sufficiently exhibiting the effect of improving the dyeability and keeping the agent stable.
The appearance of the pretreatment agent for hair dyeing of the present invention includes, for example, a transparent or opaque appearance. preferable.

《使用方法》
本発明の染毛用前処理剤は、使用方法は特に限定されず、例えば、毛髪に塗布またはスプレーして使用することができる。
"how to use"
The method of use of the pretreatment agent for hair dyeing of the present invention is not particularly limited, and for example, it can be used by applying or spraying it on the hair.

本発明の染毛用前処理剤は、毛髪の根元部分にもムラなく塗布する観点から、ミスト状またはフォーム状で毛髪に塗布することが好ましく、ミスト状がより好ましい。
本発明の染毛用前処理剤は、毛髪が乾燥している状態でも、濡れている状態でも使用することができる。
The pretreatment agent for hair dyeing of the present invention is preferably applied to the hair in the form of a mist or a foam, more preferably in the form of a mist, from the viewpoint of even application to the roots of the hair.
The pretreatment agent for hair dyeing of the present invention can be used when the hair is dry or wet.

本発明の染毛用前処理剤は、用途について特に制限はないが、染色性および均染性の向上に優れることから、白髪の染毛に用いられることが好ましい。
本発明の染毛用前処理剤は、酸性染毛料による白髪の染毛処理の前に、毛髪に塗布することがより好ましい。
The use of the pretreatment agent for hair dyeing of the present invention is not particularly limited, but it is preferably used for dyeing gray hair because it is excellent in improving dyeability and levelness.
The pretreatment agent for hair dyeing of the present invention is more preferably applied to the hair before gray hair is dyed with an acidic hair dye.

また、本発明の染毛用前処理剤は、ブリーチ等して髪色が明るくなった黒髪の酸性染毛料による染毛処理の前に、毛髪に塗布することも好ましい。 It is also preferable to apply the pretreatment agent for hair dyeing of the present invention to the hair before the hair is dyed with an acidic hair dye for black hair whose color has been lightened by bleaching or the like.

<染毛用前処理方法>
本発明の染毛用前処理方法は、本発明の染毛用前処理剤を毛髪に塗布する工程(I)、工程(I)の後、染毛用前処理剤が塗布されたままの毛髪に、さらに酸性染毛料または酸化染毛剤を毛髪に塗布する工程(II)を有する。
<Pretreatment method for hair dyeing>
The pretreatment method for hair dyeing of the present invention includes the step (I) of applying the pretreatment agent for hair dyeing of the present invention to the hair, and after step (I), the hair to which the pretreatment agent for hair dyeing is applied. 2, further includes a step (II) of applying an acid hair dye or an oxidative hair dye to the hair.

工程(I)では、毛髪が乾燥している状態でも、濡れている状態でも、本発明の染毛用前処理剤を毛髪に塗布することができる。
工程(I)の後、毛髪の水洗や洗浄の工程を行わず、染毛用前処理剤が塗布されたままの毛髪に、さらに酸性染毛料または酸化染毛剤を毛髪に塗布する工程(II)を行うことが好ましい。
In step (I), the hair dyeing pretreatment agent of the present invention can be applied to the hair whether the hair is dry or wet.
After the step (I), a step (II) of applying an acidic hair dye or an oxidative hair dye to the hair to which the pretreatment agent for hair dyeing has been applied without performing the step of rinsing or washing the hair. ) is preferred.

工程(I)の後、工程(II)を行うまでの時間は、特に限定されないが、工程(I)の後、好ましくは5秒~60秒、より好ましくは5秒~30秒放置した後、工程(II)を行うことが染色性および均染性を向上させる効果を充分に発揮するという観点から好ましい。 The time from step (I) to step (II) is not particularly limited, but after step (I), it is preferably left for 5 seconds to 60 seconds, more preferably 5 seconds to 30 seconds, Carrying out the step (II) is preferable from the viewpoint of sufficiently exhibiting the effect of improving dyeability and levelness.

工程(II)は、染毛用前処理剤が塗布されたままの毛髪に、さらに酸性染毛料を毛髪に塗布する工程であることで、染毛用前処理剤が毛髪へ浸透すると同時に、酸性染毛料を一緒に毛髪のより内部へと浸透させることから、染色性および均染性向上効果を十分に得るために好ましい。 The step (II) is a step of applying an acidic hair dye to the hair to which the hair dyeing pretreatment agent has been applied, so that the hair dyeing pretreatment agent permeates the hair and at the same time, the acidic hair dye is applied to the hair. Since the hair dye penetrates deeper into the hair together, it is preferable in order to sufficiently obtain the effect of improving dyeability and levelness.

次に本発明について実施例を示してさらに詳細に説明するが、本発明はこれらによって限定されるものではない。 EXAMPLES Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these.

<実施例1~81、比較例1~10>
実施例および比較例では、表1に記載の市販品を使用した。
<Examples 1 to 81, Comparative Examples 1 to 10>
Commercially available products listed in Table 1 were used in the examples and comparative examples.

Figure 2023104331000004
Figure 2023104331000004

表2~表9に示す処方で各成分を常法により混合(精製水に各成分を添加して均一に混合)することにより染毛用前処理剤を製造した。
製造した染毛用前処理剤を、後述する(1)~(6)の官能評価の試料とした。
(1)および(2)の官能評価は、必須の評価項目とした。(3)~(6)の官能評価は、任意の評価項目とした。
なお、表中の処方の数値は、染毛用前処理剤を100質量%とした場合の、各成分の質量%を表しており、純分換算した値を示す。
A pretreatment agent for hair dyeing was produced by mixing each component according to the recipes shown in Tables 2 to 9 in a conventional manner (adding each component to purified water and uniformly mixing).
The manufactured pretreatment agents for hair dyeing were used as samples for sensory evaluations (1) to (6) described later.
The sensory evaluations (1) and (2) were essential evaluation items. The sensory evaluations of (3) to (6) were arbitrary evaluation items.
The numerical values of the formulations in the table represent mass % of each component when the pretreatment agent for hair dyeing is 100 mass %, and show values converted to pure components.

〔前処理〕
人毛白髪毛束(BM-W-A:株式会社ビューラックス製)1gに対し、試料の染毛用前処理剤1gをコームで塗布して均一になじませ、15秒間放置した。
〔Preprocessing〕
1 g of the sample pretreatment agent for hair dyeing was applied to 1 g of human gray hair bundles (BM-WA: manufactured by Beaulux Co., Ltd.) with a comb, spread evenly, and left for 15 seconds.

〔染毛処理(i):実施例1~81および比較例1~8〕
上述の前処理をした毛束に、酸性染毛料(カラーストーリー オアシック M-B 株式会社アリミノ製)1gを刷毛で均一に塗布し、40℃で15分間放置した。15分経過後、毛束を35℃程度の流水で1分間すすぎ、シャンプー(シェルパ デザインサプリ D-2 シャンプー:株式会社アリミノ製)1gを用いて洗浄した。洗浄後、35℃程度の流水で1分間すすぎ、毛束をドライヤーで乾燥させ、仕上げた。
[Hair dyeing treatment (i): Examples 1 to 81 and Comparative Examples 1 to 8]
1 g of an acidic hair dye (Color Story Oasis MB, manufactured by Arimino Co., Ltd.) was evenly applied to the pretreated hair tresses with a brush and allowed to stand at 40° C. for 15 minutes. After 15 minutes, the hair tress was rinsed with running water at about 35° C. for 1 minute, and washed with 1 g of shampoo (Sherpa Design Supplement D-2 Shampoo: manufactured by Arimino Co., Ltd.). After washing, the hair tress was rinsed with running water at about 35°C for 1 minute, dried with a dryer, and finished.

〔染毛処理(ii):比較例9~10〕
上述の前処理をした毛束を35℃程度の流水で1分間すすぎ、タオルドライしてから染毛処理に用いた以外は、染毛処理(i)と同様に行った。
[Hair dyeing treatment (ii): Comparative Examples 9 to 10]
The same hair dyeing treatment (i) was performed except that the pretreated hair tresses were rinsed with running water at about 35° C. for 1 minute, dried with a towel, and then used for the hair dyeing treatment.

〔染毛処理(iii):コントロール〕
上述の前処理をせずに酸性染毛料で染毛処理した毛束をコントロールとした。
人毛白髪毛束(BM-W-A:株式会社ビューラックス製)1gに対し、酸性染毛料(カラーストーリー オアシック M-B 株式会社アリミノ製)1gを刷毛で均一に塗布し、40℃で15分間放置した。15分経過後、毛束を35℃程度の流水で1分間すすぎ、シャンプー(シェルパ デザインサプリ D-2 シャンプー:株式会社アリミノ製)1gを用いて洗浄した。洗浄後、35℃程度の流水で1分間すすぎ、毛束をドライヤーで乾燥させ、仕上げた。
[Hair dyeing treatment (iii): control]
A hair tress dyed with an acid hair dye without the above pretreatment was used as a control.
To 1 g of human gray hair bundle (BM-W-A: manufactured by Beaulux Co., Ltd.), 1 g of acidic hair dye (Color Story Oasis M-B manufactured by Arimino Co., Ltd.) was evenly applied with a brush. Let sit for a minute. After 15 minutes, the hair tress was rinsed with running water of about 35° C. for 1 minute, and washed with 1 g of shampoo (Sherpa Design Supplement D-2 Shampoo: manufactured by Arimino Co., Ltd.). After washing, the hair tress was rinsed with running water at about 35°C for 1 minute, dried with a dryer, and finished.

〔染毛試験〕
試料の染毛用前処理剤で前処理した後に、酸性染毛料で染毛処理(i)または(ii)を行った毛束と、上述の前処理をせずに酸性染毛料で染毛処理(iii)を行ったコントロールの毛束とを比較して、(1)および(2)の必須の官能評価を行った。また、(4)および(5)の官能評価も行った。
[Hair dyeing test]
Hair tresses that were pretreated with the sample hair dyeing pretreatment agent and then subjected to hair dyeing treatment (i) or (ii) with an acidic hair dye, and hair dyeing with an acidic hair dye without the above pretreatment Essential sensory evaluations of (1) and (2) were performed by comparing with the control hair tress subjected to (iii). Sensory evaluation of (4) and (5) was also performed.

〔染色堅牢性試験:実施例1~81および比較例1~10〕
試料の染毛用前処理剤で前処理した後に、酸性染毛料で染毛処理(i)または(ii)を行った毛束、および前処理せずに酸性染毛料で染毛処理(iii)を行ったコントロールの毛束を5%ラウレス硫酸ナトリウム水溶液100gに浸漬し、30℃で30分間振とうした。その後、35℃程度の流水で1分間すすぎ、風乾させ、仕上げた。
[Color Fastness Test: Examples 1 to 81 and Comparative Examples 1 to 10]
Hair tresses that were pretreated with the sample hair dyeing pretreatment agent and then subjected to hair dyeing treatment (i) or (ii) with an acidic hair dye, and hair dyeing treatment with an acidic hair dye without pretreatment (iii) The control hair tress subjected to the above treatment was immersed in 100 g of a 5% sodium laureth sulfate aqueous solution and shaken at 30° C. for 30 minutes. After that, it was rinsed with running water at about 35°C for 1 minute, air-dried, and finished.

仕上げた毛束について、酸性染毛料で染毛処理(i)または(ii)を行っていた毛束と、前処理せずに酸性染毛料で染毛処理(iii)を行っていたコントロールの毛束とを比較して、(3)の官能評価を行った。 Regarding the finished hair tresses, hair tresses that had undergone hair dyeing treatment (i) or (ii) with an acidic hair dye, and control hair that had undergone hair dyeing treatment (iii) with an acidic hair dye without pretreatment. Sensory evaluation of (3) was performed by comparing with the bundle.

〔地肌汚れ抑制試験〕
地肌汚れ抑制試験(i):実施例1~81および比較例1~8
試料の染毛用前処理剤0.05gを上腕内側部に直径約1.0cmの円形状に塗布し、約15秒間放置した。この染毛用前処理剤塗布部分に重なるように、酸性染毛料(カラーストーリー オアシック M-B 株式会社アリミノ製)を0.1g円形状に塗布し、15分間放置し、35℃程度の流水で1分間すすぎ、風乾させた。
[Surface dirt suppression test]
Background stain suppression test (i): Examples 1 to 81 and Comparative Examples 1 to 8
0.05 g of the sample pretreatment agent for hair dyeing was applied to the inside of the upper arm in a circular shape with a diameter of about 1.0 cm and left for about 15 seconds. Apply 0.1 g of acidic hair dye (COLOR STORY OASIC MB manufactured by Arimino Co., Ltd.) in a circular shape so that it overlaps with this pretreatment agent for hair dye application, leave it for 15 minutes, and run water at about 35 ° C for 1 minute. Rinse and air dry.

地肌汚れ抑制試験(ii):比較例9~10
試料の染毛用前処理剤0.05gを上腕内側部に直径約1.0cmの円形状に塗布し、約15秒間放置した。その後、35℃程度の流水で1分間すすぎ、タオルドライしてから、染毛用前処理剤塗布部分に重なるように、酸性染毛料(カラーストーリー オアシック M-B 株式会社アリミノ製)を0.1g円形状に塗布した以外は、地肌汚れ抑制試験(i)と同様に行った。
Background stain suppression test (ii): Comparative Examples 9-10
0.05 g of the sample pretreatment agent for hair dyeing was applied to the inside of the upper arm in a circular shape with a diameter of about 1.0 cm and left for about 15 seconds. After that, rinse with running water of about 35 ° C for 1 minute, towel dry, and apply 0.1 g of acidic hair dye (Color Story Oasis MB made by Arimino Co., Ltd.) in a circular shape so that it overlaps the hair dyeing pretreatment agent applied part. It was carried out in the same manner as in the background stain suppression test (i), except that it was applied to the .

地肌汚れ抑制試験(iii):コントロール
試料の染毛用前処理剤を上腕内側部に塗布しなかったこと以外は、地肌汚れ抑制試験(i)と同様に行った。
Stain suppression test (iii): control The same procedure as in the Stain suppression test (i) was conducted, except that the pretreatment agent for hair dyeing of the control sample was not applied to the inner part of the upper arm.

地肌汚れ抑制試験(i)または(ii)を行った後の上腕内側部と、(iii)を行った後の上腕内側部とを比較して、(6)の官能評価を行った。 The sensory evaluation of (6) was performed by comparing the inner side of the upper arm after conducting the background stain suppression test (i) or (ii) with the inner side of the upper arm after conducting (iii).

<官能評価>
(1)~(6)の官能評価は、専門パネラー(美容師)10名が1人ずつ評価を行った。評価は項目ごとに記載した下記の評価点基準による10名の平均点を算出し、平均点に基づいて以下のとおり評価した。
<Sensory evaluation>
The sensory evaluation of (1) to (6) was performed by 10 professional panelists (cosmetologists) one by one. For the evaluation, the average score of 10 persons was calculated according to the following evaluation score criteria described for each item, and the evaluation was made as follows based on the average score.

◎:10人の専門パネラー(美容師)の評価点の平均点が3.5点以上である。
○:10人の専門パネラー(美容師)の評価点の平均点が2.5点以上3.5点未満である。
△:10人の専門パネラー(美容師)の評価点の平均点が1.5点以上2.5点未満である。
×:10人の専門パネラー(美容師)の評価点の平均点が1.5点未満である。
A: The average evaluation score of 10 professional panelists (cosmetologists) is 3.5 points or more.
◯: The average evaluation score of 10 professional panelists (cosmetologists) is 2.5 or more and less than 3.5.
Δ: The average evaluation score of 10 professional panelists (beauticians) is 1.5 or more and less than 2.5.
x: The average score of the 10 professional panelists (cosmetologists) is less than 1.5 points.

<評価項目>
(1)染色性
4点:非常に良く染まっていて、前処理剤の染色性向上効果が高い
3点:やや染まりが良くて、前処理剤の染色性向上効果がやや高い
2点:染まりに差が感じられず、前処理剤の染色性向上効果がない
1点:想定した色味が得られず、前処理剤が染色性を阻害した
(2)均染性
4点:非常に染まりが均一で、前処理剤の均染性向上効果が高い
3点:やや染まりが均一で、前処理剤の均染性向上効果がやや高い
2点:染まりの均一さに差が感じられず、前処理剤の均染性向上効果がない
1点:染まりが均一ではなく、前処理剤が均染性を阻害した
<Evaluation items>
(1) Dyeability 4 points: Very good dyeing, the pretreatment agent has a high effect of improving the dyeing property 3 points: Slightly good dyeing property, the pretreatment agent has a slightly high effect of improving the dyeing property 2 points: No dyeing No difference was felt, and the pretreatment agent had no effect of improving the dyeability. 1 point: The expected tint was not obtained, and the pretreatment agent inhibited the dyeability. 3 points: Slightly uniform dyeing, the effect of improving the levelness of the pretreatment agent is slightly high 2 points: No difference in the uniformity of dyeing, There is no effect of improving the levelness of the treatment agent 1 point: The dyeing is not uniform, and the pretreatment agent inhibits the levelness

(3)染色堅牢性
4点:色落ちが非常に少なく、前処理剤の染色堅牢性向上効果が高い
3点:色落ちがやや少なく、前処理剤の染色堅牢性向上効果がやや高い
2点:色落ちの程度に差がなく、前処理剤の染色堅牢性向上効果がない
1点:色落ちが多く、染まりが薄くなっており、前処理剤が染色堅牢性を阻害した
(4)滑らかさ
毛束に指を通した時の指通りを滑らかさとし、触感で評価した。
4点:毛髪が全くひっかからず、滑らかさの向上効果が高い
3点:毛髪があまりひっかからず、滑らかさの向上効果がやや高い
2点:毛髪のひっかかりに差がない
1点:毛髪がコントロールの毛束よりひっかかり、滑らかではない
(3) Color fastness 4 points: Very little color fading, pretreatment agent has a high effect of improving color fastness 3 points: Slightly little color fading, slightly high color fastness improvement effect of pretreatment agent 2 points : There is no difference in the degree of color fading, and the pretreatment agent has no effect on improving the color fastness. Smoothness The smoothness of finger passage when a finger is passed through a hair bundle was evaluated based on the tactile sensation.
4 points: The hair does not get caught at all, and the effect of improving smoothness is high. 3 points: The hair does not get caught very much, and the effect of improving smoothness is slightly high. 2 points: There is no difference in the hair getting caught. Tugged and not smooth

(5)弾力感
毛束を曲げたときに感じる指への応力を弾力感とし、触感で評価した。
4点:指へかかる応力が非常に強く、弾力感の向上効果が高い
3点:指にかかる応力が強く、弾力感の向上効果がやや高い
2点:指にかかる応力に差が無い
1点:指にかかる応力がコントロールの毛束より弱く、弾力感が無い
(6)地肌汚れ抑制効果
4点:地肌が汚れ難く、前処理剤の地肌汚れ抑制効果が高い
3点:地肌がやや汚れ難く、前処理剤の地肌汚れ抑制効果がやや高い
2点:地肌汚れの程度に差がなく、前処理剤の地肌汚れ抑制効果がない
1点:地肌汚れが多く、前処理剤が地肌汚れを促進した
(5) Elasticity Feeling of elasticity was defined as the stress felt on the finger when the bundle of hair was bent, and was evaluated by tactile sensation.
4 points: The stress applied to the fingers is very strong, and the effect of improving the feeling of elasticity is high 3 points: The stress applied to the fingers is strong, and the effect of improving the feeling of elasticity is slightly high 2 points: There is no difference in the stress applied to the fingers 1 point : The stress on the finger is weaker than the control hair bundle, and there is no elasticity (6) Stain suppression effect on the skin 4 points: The skin is not easily soiled, and the pretreatment agent has a high effect of suppressing skin stains 3 points: The skin is slightly stain resistant , The effect of the pre-treatment agent to suppress background stains is slightly high. 2 points: There is no difference in the degree of background stains, and the pre-treatment agent does not have the effect of suppressing background stains. bottom

Figure 2023104331000005
Figure 2023104331000005

Figure 2023104331000006
Figure 2023104331000006

Figure 2023104331000007
Figure 2023104331000007

Figure 2023104331000008
Figure 2023104331000008

Figure 2023104331000009
Figure 2023104331000009

Figure 2023104331000010
Figure 2023104331000010

Figure 2023104331000011
Figure 2023104331000011

Figure 2023104331000012
Figure 2023104331000012

実施例1~81で製造した染毛用前処理剤は、(1)~(6)の評価項目において良好な結果となった。実施例81は、特に良好な結果となった。 The hair dyeing pretreatment agents produced in Examples 1 to 81 gave good results in the evaluation items (1) to (6). Example 81 gave particularly good results.

本発明の染毛用前処理剤は、染毛処理の前に毛髪に塗布することで、染色性および均染性を向上させ、あわせて、染色堅牢性を向上させつつ、地肌汚れの抑制にも優れ、さらに、毛髪の滑らかさおよび弾力感を付与する染毛用前処理剤であることがわかる。 By applying the pretreatment agent for hair dyeing of the present invention to the hair before the hair dyeing treatment, it improves the dyeability and levelness of the dyeing, and at the same time, improves the color fastness and suppresses the background stain. Furthermore, it is found to be a pretreatment agent for hair dyeing that imparts smoothness and elasticity to hair.

比較例1および3で製造した染毛用前処理剤は、成分(A)が規定量より少ないため、染色性が向上しなかった。また、染色堅牢性は向上せず、地肌汚れの抑制効果も無く、毛髪の弾力感も乏しかった。 The pretreatment agents for hair dyeing produced in Comparative Examples 1 and 3 did not have improved dyeability because the amount of component (A) was less than the specified amount. In addition, the dyeing fastness was not improved, the effect of suppressing the staining of the background was not obtained, and the elasticity of the hair was poor.

比較例2および4で製造した染毛用前処理剤は、成分(A)が規定量より多いため、染色性が向上しなかった。また、染色堅牢性は向上せず、毛髪の滑らかさおよび弾力感も乏しかった。 The pretreatment agents for hair dyeing produced in Comparative Examples 2 and 4 did not have improved dyeability because the amount of component (A) was more than the specified amount. In addition, the color fastness was not improved, and the smoothness and elasticity of the hair were poor.

比較例5~8で製造した染毛用前処理剤は、成分(A)が配合されていないため、染色性および均染性が向上しなかった。
比較例9および10で行った染毛用前処理方法では、工程(I)の後、本発明の染毛用前処理剤が塗布された毛髪を流水ですすいだことにより、工程(II)を経なかった。そのため、染色性および均染性が向上しなかった。
The pretreatment agents for hair dyeing produced in Comparative Examples 5 to 8 did not contain the component (A), and thus did not exhibit improved dyeability and levelness.
In the pretreatment methods for hair dyeing performed in Comparative Examples 9 and 10, after step (I), the hair to which the pretreatment agent for hair dyeing of the present invention was applied was rinsed with running water, whereby step (II) was performed. It didn't pass. Therefore, the dyeability and level dyeability were not improved.

Claims (8)

下記式(X)で示されるエーテルアルコール(A)を10~60質量%と、
水とを含み、
前記エーテルアルコール(A)と水との質量比((A):水)が1:9~3:2である、染毛用前処理剤。
Figure 2023104331000013
〔式中、Rは炭素数1~5のアルキル基を示し、nは1または2を示す。〕
10 to 60% by mass of an ether alcohol (A) represented by the following formula (X),
including water;
A pretreatment agent for hair dyeing, wherein the weight ratio of the ether alcohol (A) to water ((A):water) is from 1:9 to 3:2.
Figure 2023104331000013
[In the formula, R represents an alkyl group having 1 to 5 carbon atoms, and n represents 1 or 2. ]
水溶性エステル類(B)を0.1~5質量%含む、請求項1に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to claim 1, comprising 0.1 to 5% by mass of the water-soluble ester (B). アミノ酸類(C)を0.001~0.2質量%含む、請求項1または2に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to claim 1 or 2, comprising 0.001 to 0.2% by mass of amino acids (C). ヒドロキシ酸類(D)を0.1~3質量%含む、請求項1~3のいずれか一項に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to any one of claims 1 to 3, comprising 0.1 to 3% by mass of hydroxy acids (D). ミスト状またはフォーム状で毛髪に塗布する、請求項1~4のいずれか一項に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to any one of claims 1 to 4, which is applied to the hair in the form of a mist or foam. 白髪の染毛に用いられる、請求項1~5のいずれか一項に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to any one of claims 1 to 5, which is used for dyeing gray hair. 剤型が非乳化型である、請求項1~6のいずれか一項に記載の染毛用前処理剤。 The pretreatment agent for hair dyeing according to any one of claims 1 to 6, which has a non-emulsified formulation. 請求項1~7のいずれか一項に記載の染毛用前処理剤を毛髪に塗布する工程(I)、
工程(I)の後、染毛用前処理剤が塗布されたままの毛髪に、さらに酸性染毛料または酸化染毛剤を毛髪に塗布する工程(II)を有する、染毛用前処理方法。
The step (I) of applying the hair dyeing pretreatment agent according to any one of claims 1 to 7 to the hair,
A pretreatment method for hair dyeing, comprising a step (II) of further applying an acid hair dye or an oxidative hair dye to the hair to which the pretreatment agent for hair dyeing has been applied after the step (I).
JP2022005251A 2022-01-17 2022-01-17 Pretreating agent for hair dyeing and pretreating method for hair dyeing Pending JP2023104331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022005251A JP2023104331A (en) 2022-01-17 2022-01-17 Pretreating agent for hair dyeing and pretreating method for hair dyeing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022005251A JP2023104331A (en) 2022-01-17 2022-01-17 Pretreating agent for hair dyeing and pretreating method for hair dyeing

Publications (1)

Publication Number Publication Date
JP2023104331A true JP2023104331A (en) 2023-07-28

Family

ID=87379312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022005251A Pending JP2023104331A (en) 2022-01-17 2022-01-17 Pretreating agent for hair dyeing and pretreating method for hair dyeing

Country Status (1)

Country Link
JP (1) JP2023104331A (en)

Similar Documents

Publication Publication Date Title
JP2842621B2 (en) Hair treatment composition for simultaneously applying permanent hair coloring and permanent waving or curly hair straightening and method of treating the same
KR102475287B1 (en) Hair cosmetic composition, hair color agent composition, hair color treatment method
JP2004189745A (en) Pretreatment composition applied before coloring hair with acidic direct dyes
JPH0578228A (en) Hair-dye composition
JP2012162466A (en) Hair dye
JP2002104942A (en) Acidic hair dye composition
JP2023104331A (en) Pretreating agent for hair dyeing and pretreating method for hair dyeing
JPH0344314A (en) Hair dyeing assistant for acid dye
JP6980438B2 (en) Hair color treatment method
JP2013147476A (en) Hair cosmetic
JP3425529B2 (en) Acid hair dye
EP0547790A1 (en) Dye composition for Keratinous fibers
JP2000128747A (en) Hair dye composition
JPH10175824A (en) Hair restoring agent composition and hair cosmetic and hair strengtening agent using the same
KR20210079283A (en) hair color composition
JP2021038145A (en) Hair treatment agent, acid/heat treatment method, and shampoo treatment method
JP2001010933A (en) Cosmetics for hair
JP2699133B2 (en) Keratinized fiber dye composition
JPH05238923A (en) Hair dyeing composition
JP2000026243A (en) Hair cosmetic
JP2014084293A (en) Perm solution and hair conditioning agent
JP7181598B2 (en) Dyeing method and hair dye kit
JP4130292B2 (en) Hair washing cosmetics
JP3810921B2 (en) Keratinous fiber treatment agent composition
JP2000128749A (en) Acidic hair dye