JP3807842B2 - Shampoo composition - Google Patents

Description

【０００７】
（式中、Ｘ^- はハロゲンイオンを表し、ｍ及びｎは化合物の分子量を１５０万〜２００万にする数値である。）。
（Ｒ−ＮＨＣＨ₂ ＣＨ₂ ＣＯＯ^- ）Ｙ⁺ （II）
（式中、Ｒは炭素原子数１２〜１８のアルキル基であり、Ｙ⁺ はＮａ⁺ 、Ｋ⁺ 又はＮ⁺ Ｈ（ＣＨ₃ ＣＨ₂ ＯＨ）₃ を表す。）
【０００８】
【化４】

【０００９】
（式中、Ｒは炭素原子数１２〜１８のアルキル基であり、Ｚ⁺ はＮａ⁺ 、Ｋ⁺ 又はＮ⁺ Ｈ（ＣＨ₂ ＣＨ₂ ＯＨ）₃ を表す。）
本発明の具体的な実施態様として、シャンプー組成物の全重量に基づいて、上記成分（１）のジメチルジアリルアンモニウム塩とアクリル酸の共重合体を0.１〜５重量％、成分（２）のカチオン化セルロース及びカチオン化グアガムからなる群から選ばれる少なくとも１種を0.１〜２重量％、及び成分（３）のアルキルアミノプロピオン酸塩を１〜３０重量％含有することを特徴とするシャンプー組成物が挙げられる。
また本発明の好ましい実施態様として、上記成分（２）として、窒素含量が0.５〜2.0 重量％のカチオン化セルロース及び窒素含量が1.０〜3.０重量％のカチオン化グアガムからなる群から選ばれる少なくとも１種を使用することが挙げられる。
本発明のシャンプー組成物はまた、好ましい態様として鶏卵白に対する変性度が５０以下で、且つ外観上透明なものである。
【００１０】
【発明の実施の形態】
以下、本発明について詳細に説明する。
本発明のシャンプー組成物に配合する成分（１）のジメチルジアリルアンモニウム塩とアクリル酸の共重合体は、上記一般式（Ｉ）で示される構造式を有するもので、式中、Ｘ^- はハロゲンイオン、好ましくは塩素イオン又は臭素イオンを表す。ｍ、ｎはそれぞれ該共重合体化合物の分子量を１５０万〜２００万にする数である。このような共重合体は市場で一般に入手することができ、その具体例としては、カルゴン社製のマーコート（ＭＥＲＱＵＡＴ）２８０が挙げられる。
【００１１】
次いで、本発明に用いる成分（２）のカチオン化セルロースとカチオン化グアガムは特に限定されるものではないが、それぞれ窒素含量0.５〜2.０重量％のカチオン化セルロース、窒素含量1.０〜3.０重量％のカチオン化グアガムを使用することが好ましい。成分（２）の窒素含量が上記の下限値より少ないと、毛髪へのコンディショニング効果が弱く、上限値を超えると使用感が重くなる傾向がある。
使用できるカチオン化セルロースの具体例として、ライオン（株）社製のレオガードＧＰ、ＭＬＰ若しくは東邦化学工業（株）社製のカチナールＨＣ−１００、ＨＣ２００、ＬＣ−１００、ＬＣ−２００などが挙げられる。
また、カチオン化グアガムの具体例としては、大日製薬（株）製ラボールガムＣＧ−Ｍ、ＣＧ−Ｍ７、ＣＧ−Ｍ６Ｌ、ＫＴ−８９２１、ＫＴ−８９２２、ＫＴ−８８２０、ＫＴ−８８０２、ＫＴ−８９２４、ＫＴ−８９２３、ＫＴ−８９２７、ＫＴ−８９２９、ＫＴ−８９２５、ＫＴ−８９２６、ＫＴ−９２０６Ｍ、ＫＴ−９３１８、ＫＴ−９３０９Ｍ、ＣＧ−Ｍ８Ｍ、ＫＴ−９５００、ＫＴ−９３０９Ｌ、ＫＴ−９３０８Ｌ等が好適に使用される。
成分（２）としてはカチオン化セルロースとカチオン化グアガムを併用してもよいし、一方のみを使用してもよい。
本発明のシャンプー組成物に使用する成分（３）のアルキルアミノプロピオン酸塩を示す一般式（III)において、Ｒは炭素原子数１２〜１８の飽和あるいは不飽和、及び直鎖あるいは分岐状のアルキル基を表す。好ましい具体例として、β−ラウリルアミノプロピオン酸ナトリウム、ラウリルアミノジプロピオン酸ナトリウム等が挙げられる。これらのアルキルアミノプロピオン酸塩は、一般に市場で入手することができ、本発明では市販品を使用することができる。アルキルアミノプロピオン酸塩は１種、又は２種以上を併用してもよい。
【００１２】
本発明のシャンプー組成物は、シャンプー組成物の全重量に基づいて、成分（１）のジメチルジアリルアンモニウム塩とアクリル酸の共重合体を0.１〜５重量％、好ましくは0.３〜３重量％、上記成分（２）として窒素含量が0.５〜2.０％のカチオン化セルロース及び窒素含量が1.０〜3.０％のカチオン化グアガムからなる群から選ばれる少なくとも１種を0.１〜２重量％、好ましくは0.２〜１重量％、及び成分（３）のアルキルアミノプロピオン酸塩を１〜３０重量％、好ましくは３〜２０重量％含有することが適当である。
これらの成分が、上記のそれぞれの下限値よりも少ないと、洗髪時からすすぎ時に至るまでの滑らかさが得られない場合があり、一方上記の上記値を超えると、使用感触が重くなり滑らかさを減じてしまい、仕上がり時の良好な風合いが得られない場合がある。
【００１３】
本発明のシャンプー組成物は、上記成分に加え、組成物の種類や使用目的に応じて適宜他の成分を配合することができる。
特に主剤として配合する洗浄成分としては、アニオン性及び両性の界面活性剤を配合することが好ましい。この場合のアニオン性界面活性剤及び両性界面活性剤としては、種々選択されるが、アニオン性界面活性剤としては、ポリオキシエチレンアルキルエーテル硫酸塩、テトラデセンスルホン酸塩、ポリオキシエチレンアルキルエーテル酢酸塩、ポリオキシエチレンスルホコハク酸塩、ポリオキシエチレンラウリン酸モノエタノールアミド酢酸塩、アシルサルコシン塩、Ｎ−ラウロイルメチル−β−アラニン塩、Ｎ−アシルメチルタウリン塩などが挙げられ、中でもポリオキシエチレンアルキルエーテル酢酸塩が好ましい。また、両性界面活性剤としては、アルキルジメチルアミノ酢酸ベタイン、アルキルアミドプロピルベタイン、２−アルキル−Ｎ−カルボキシメチル−Ｎ−ヒドロキシエチルイミダゾリニウムベタインなどが挙げられ、中でもアルキルアミドプロピルベタインが好ましい。これらの配合量は通常シャンプー組成物全体の１〜３０重量％である。
【００１４】
更に、その他の任意成分として一般にシャンプー組成物に配合される成分である非イオン性界面活性剤、カチオン性界面活性剤、増粘剤、湿潤剤、防腐・殺菌剤、白濁剤、酸化防止剤、紫外線吸収剤、色素、香料等の１種又は２種以上を配合することができる。これらは通常シャンプー組成物に配合するような量で使用することができる。
それらの具体例として以下のものがある。
非イオン性界面活性剤：親油型又は自己乳化型グリセリンモノステアレート、ポリグリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリオキシエチレン（ＰＯＥ）ソルビタン脂肪酸エステル、ＰＯＥ硬化ヒマシ油等。
カチオン性界面活性剤：塩化アルキルトリメチルアンモニウム、塩化ジアルキルジメチルアンモニウム、塩化アルキルジメチルベンジルアンモニウム、エチル硫酸ラノリン脂肪酸アミノプロピルエチルジメチルアンモニウム等。
増粘剤：カルボキシメチルセルロース及びその塩、ヒドロキシエチルセルロース、ヒドロキシプロピルセルロース、ポリビニルピロリドン、ヤシ油脂肪酸ジエタノールアミド、ラウリル酸ジエタノールアミド、ＰＯＥジオレイン酸メチルグルコシド、モノステアリン酸ポリエチレングリコール、ジステアリン酸ポリエチレングリコール等。
【００１５】
湿潤剤：グリセリン、１，３−ブチレングリコール、プロピレングリコール、ジプロピレングリコール、ソルビトール、ポリグリセリン、ポリエチレングリコール等。
防腐・殺菌剤；安息香酸塩、サリチル酸塩、ソルビン酸塩、パラオキシ安息香酸エステル、トリクロサン、トリクロカルバン、塩化ベンザルコニウム、塩化ベンゼトニウム、ヒノキチオール、フェノキシエタノール等。
白濁剤：酸化チタン、酸化亜鉛、モノステアリン酸エチレングリコール、ジステアリン酸エチレングリコール等。
酸化防止剤：ジブチルヒドロキシトルエン、ジブチルヒドロキシアニソール、酢酸トコフエロール、アスコルビン酸及びその誘導体、天然ビタミンＥ等。
紫外線吸収剤：２−ヒドロキシ−４−メトキシベンゾフェノン、オクチルジメチルパラアミノベンゾエート、エチルヘキシルパラメトキシサイナメート、ヒドロキシメトキシベンゾフェノンスルホン酸及びその塩等。
【００１６】
本発明のシャンプー組成物は常法に従って製造することができる。例えば、水以外の成分を加熱混合し、これに同程度に加熱した水を徐々に加えて均一とし、室温まで冷却すればよい。
本発明のシャンプー組成物はまた、好ましくは透明であって、鶏卵白を用いた変性試験において、Ｌ＊Ａ＊Ｂ＊法により測定した色差を変性度として変性度が５０以下を示し、安全性に優れたものである。
【００１７】
【実施例】
以下、本発明を詳細に説明するために実施例を挙げるが、本発明はこれに限定されるものではない。
〔実施例１〜４及び比較例１〜５〕
下記表１及び表２に示される組成（単位：重量％）により、各シャンプー組成物を調製した。
各例のシャンプー組成物について、次の３種の試験を行った。試験手順及び評価方法は以下のとおりである。
１）使用時及び使用後の官能試験
被験者の頭髪を二分し、左右に別々の試料を用いるハーフヘッド法に準じた。即ち、片方に標準試料として表２に示す比較例１のシャンプー組成物を用い、もう片方にそれぞれ表１及び表２に示す実施例１〜４と比較例２〜５のシャンプー組成物を試験試料として用いた。各試料は約３mlを適用し洗髪した。その際、左右頭髪における洗髪時及びすすぎ時の指通り感、並びに洗髪後の風合いを下記の評点スコアーに準じて官能評価を行った。なお、判定は被験者１０名のスコアーの合計で行い、１５点以上であれば発明の効果があると判断した。
３点：試験試料の方がかなり優れている。２点：試験試料の方が優れている。
１点：試験試料の方がやや優れている。０点：同等である。
−１点：標準試料の方がやや優れている。−２点：標準試料の方が優れている。
【００１８】
２）手指に対する安全性試験
表１及び表２の組成に基づく実施例及び比較例のシャンプー組成物の１％水溶液を調製し、４０℃に加温した。この液に手首より先端部を完全に浸したまま５分間放置し、その後ぬるま湯ですすぎ、軽くタオル等で水分を除去した。この操作を５回繰り返し（３０分に１回）、５回目終了後３０分間放置し、完全に乾いた後に手指の状態を目視観察し、下記スコアーに準じて評価を行った。
被験者：５名で行い、その平均で判定し、２点以上であれば刺激性が少ないと判断した。
３点：変化なし。２点：ややカサついている。１点：かなりカサついている。
また、別に手の甲を被験部位とし、肌荒れ状態を反映する角質水分量を試験開始前と試験終了後にＳＫＩＣＯＮ２００（ＩＢＳ社製）を用いて測定した。
なお、角質水分量は、（試験終了後／試験開始前）×１００の数値で評価した。
【００１９】
３）鶏卵白に対する変性試験
市販の鶏卵より卵白を採取し、直ちに３０メッシュにて篩過した。篩過した卵白２０ｇに各シャンプー組成物0.１ｇを加え２分間攪拌した後、更に１分間放置し、これを被験試料とした。標準試料は先に篩過した卵白とし、標準試料に対する被検試料の色差（ΔＥ）を、色彩色差計（日本電色工業（株）製；ＳＺ−Σ９０）を用い、Ｌ＊Ａ＊Ｂ＊法により測定した。ここで得られた色差を変性度とした。１試料につき３回測定した。その平均で評価した。変性度５０以下のものを安全性が高いと判断した。
各試験の結果は下記表３に示す。
【００２０】
【表１】

【００２１】
【表２】

【００２２】
実施例及び比較例に示したシャンプー組成物は、成分１〜４、７、８を７０℃にて均一に混合し、これに５及び６を一部の９に溶解したものを加え、さらに５０℃まで冷却した後、残りの９を加えて室温まで冷却して調製した。
いずれも透明のシャンプー組成物が得られた。
【００２３】
【表３】

【００２４】
表３に示される結果から明らかなように、本発明品である実施例は、いずれも比較例に比べて良好な数値が得られた。即ち、洗髪時からすすぎ時に至るまでの指通り感、並びに洗髪後の風合いも比較的優れており、総合的なコンディショニング効果が得られる。また、手指に対する刺激性も少ないことが分かり、卵白変性度が低いことから蛋白質変性度が低いことが示唆され、よって安全性の高いシャンプー組成物であることが示された。
【００２５】

調製法：成分２〜４、７〜１０及び１４を７０℃にて均一に攪拌混合し、これに５及び６を１５の一部に溶解したものを加えた。その後、１２及び残りの１５を加え均一にし、５０℃まで冷却した。最後に１３を加え引き続き室温付近まで冷却した。
【００２６】
〔実施例６〕
以下の組成（単位：重量％）によりパールシャンプー（外観上、パール光沢のあるシャンプー）を調製した。

調製法：成分１〜４、７〜１０及び１３を７０℃にて均一に攪拌混合し、これに５及び６を１５の一部に溶解したものを加えた。その後、１１、１２及び残りの１５を加え均一にし、５０℃まで冷却した。最後に１４を加え引き続き室温付近まで冷却した。
【００２７】
【発明の効果】
本発明により、洗髪時からすすぎ時に至るまで滑らかな指通り感触を付与すると共に、仕上がり時には毛髪に良好な風合いを与え、かつ蛋白質に対する変性度が低く皮膚に対する安全性に優れたシャンプー組成物が提供できる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shampoo composition. More specifically, the shampoo composition imparts a smooth touch feeling from the time of washing to the time of rinsing, gives a good texture to the hair when finished, and is excellent in safety for fingers. About.
[0002]
[Prior art]
In recent years, in addition to changing the hair style by permanent wave or the like, the color tone of hair has been frequently changed by hair color or hair bleach. The imparting of such an aesthetic effect is basically a hair change caused by chemical treatment, and the damage given to the hair is considerable. Also, today, with a strong sense of cleanliness, there are many hair washings, and the hair, scalp, and even the fingers are easily damaged or damaged. For this reason, it not only has a moderate cleaning effect, but also provides a smooth feeling of fingering from the time of shampooing to the time of rinsing, and at the same time it can prevent damage to the hair, especially peeling of the cuticle due to friction, and to fingers A shampoo composition with less irritation is desired. Another function required for the shampoo composition is a moist feeling after washing and a good texture, and good styling after washing the hair is also an important factor.
Therefore, conventionally, a method of improving the conditioning effect of the shampoo composition by adding a film-forming hair protecting agent such as cationized cellulose to the shampoo composition has been taken, and separately from consideration for the irritation to the scalp. Are used for amino acid-based or amphoteric cleaning bases with weak degreasing power.
[0003]
However, when cationized cellulose is added to the shampoo composition, the effect of suppressing the squeaky feeling of the hair during rinsing is excellent, but the residual feeling on the hair is strong, and the texture after washing becomes heavy. On the other hand, a method of improving conditioning by adding a copolymer of dimethyldiallylammonium chloride and acrylic acid (MERQUAT280) that gives a good texture after washing to a shampoo composition has been proposed. Since it is not improved, a sufficient effect cannot be expected.
Although the individual conditioning components exemplified above can naturally be expected to have a combined effect, it is actually difficult to obtain a comprehensive effect due to the combined use, and overall, the persistence to the hair is increased, and it is individually included. The function is negated.
Furthermore, in recent years, the frequency of shampooing has increased, and in occupations where hair is forced to be washed many times on days such as hairdressers, it is also important to ensure the safety of fingers, and it is a problem to avoid rough hands due to continuous use as much as possible. .
In this way, a shampoo composition having a comprehensive conditioning effect has not yet been obtained from the time of shampooing through the time of rinsing to the finish, improving this point and combining it with less irritation to fingers It has been desired to develop a shampoo composition having an excellent conditioning effect.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a shampoo composition that gives a smooth touch feeling from the time of shampooing to the time of rinsing, gives the hair a good texture when finished, and is excellent in safety for fingers.
[0005]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors have found that a copolymer of dimethyldiallylammonium salt and acrylic acid represented by a specific formula, cationized cellulose and / or cationized guar gum, and alkylaminopropion By adding an acid salt to the shampoo composition, these components act synergistically to give a smooth finger touch from the time of shampooing to the time of rinsing, giving the hair a good texture when finished, It has been found that a shampoo composition excellent in safety for fingers can be obtained, and the present invention has been made.
Accordingly, the present invention provides (1) a copolymer of dimethyldiallylammonium salt and acrylic acid represented by the following general formula (I), (2) at least one selected from the group consisting of cationized cellulose and cationized guar gum, and (3) It relates to a shampoo composition comprising at least one selected from the group consisting of alkylaminopropionates represented by the following general formula (II) or (III).
[0006]
[Chemical 3]

[0007]
(In the formula, X ⁻ represents a halogen ion, and m and n are numerical values that make the molecular weight of the compound 1.5 million to 2 million).
(R—NHCH ₂ CH ₂ COO ⁻ ) Y ⁺ (II)
(In the formula, R is an alkyl group having 12 to 18 carbon atoms, and Y ⁺ represents Na ⁺ , K ⁺ or N ⁺ H (CH ₃ CH ₂ OH) ₃ ).
[0008]
[Formula 4]

[0009]
(In the formula, R is an alkyl group having 12 to 18 carbon atoms, and Z ⁺ represents Na ⁺ , K ⁺ or N ⁺ H (CH ₂ CH ₂ OH) ₃ ).
As a specific embodiment of the present invention, 0.1 to 5% by weight of a copolymer of dimethyldiallylammonium salt of the above component (1) and acrylic acid based on the total weight of the shampoo composition, component (2) It contains 0.1 to 2% by weight of at least one selected from the group consisting of cationized cellulose and cationized guar gum, and 1 to 30% by weight of alkylaminopropionate of component (3). A shampoo composition is mentioned.
As a preferred embodiment of the present invention, the component (2) comprises a cationized cellulose having a nitrogen content of 0.5 to 2.0% by weight and a cationized guar gum having a nitrogen content of 1.0 to 3.0% by weight. The use of at least one selected from
In a preferred embodiment, the shampoo composition of the present invention has a degree of modification to chicken egg white of 50 or less and is transparent in appearance.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
The copolymer of dimethyldiallylammonium salt and acrylic acid of component (1) to be blended in the shampoo composition of the present invention has a structural formula represented by the above general formula (I), wherein X ⁻ is halogen. Represents an ion, preferably a chlorine ion or a bromine ion. m and n are numbers that make the molecular weight of the copolymer compound 1.5 to 2 million, respectively. Such a copolymer is generally available on the market, and a specific example thereof is MERQUAT 280 manufactured by Calgon.
[0011]
Next, the cationized cellulose and the cationized guar gum of the component (2) used in the present invention are not particularly limited, but the cationized cellulose having a nitrogen content of 0.5 to 2.0% by weight and the nitrogen content of 1.0, respectively. It is preferred to use ˜3.0% by weight of cationized guar gum. When the nitrogen content of component (2) is less than the above lower limit, the hair conditioning effect is weak, and when it exceeds the upper limit, the feeling of use tends to be heavy.
Specific examples of the cationized cellulose that can be used include Leogard GP, MLP manufactured by Lion Corporation, and Kachinal HC-100, HC200, LC-100, and LC-200 manufactured by Toho Chemical Industry Co., Ltd.
Moreover, as a specific example of cationized guar gum, it is manufactured by Dainichi Pharmaceutical Co., Ltd. Labor gum CG-M, CG-M7, CG-M6L, KT-8922, KT-8922, KT-8820, KT-8802, KT-8924. KT-8923, KT-8927, KT-8929, KT-8925, KT-8926, KT-9926M, KT-9318, KT-9309M, CG-M8M, KT-9500, KT-9309L, KT-9308L, etc. Preferably used.
As the component (2), cationized cellulose and cationized guar gum may be used in combination, or only one of them may be used.
In the general formula (III) showing the alkylaminopropionate of component (3) used in the shampoo composition of the present invention, R is a saturated or unsaturated alkyl having 12 to 18 carbon atoms, and a linear or branched alkyl. Represents a group. Preferable specific examples include sodium β-laurylaminopropionate, sodium laurylaminodipropionate and the like. These alkylaminopropionates are generally available on the market, and commercially available products can be used in the present invention. The alkylaminopropionate may be used alone or in combination of two or more.
[0012]
The shampoo composition of the present invention contains 0.1 to 5% by weight, preferably 0.3 to 3%, of a copolymer of dimethyldiallylammonium salt of component (1) and acrylic acid, based on the total weight of the shampoo composition. At least one selected from the group consisting of cationized cellulose having a nitrogen content of 0.5 to 2.0% and a cationized guar gum having a nitrogen content of 1.0 to 3.0% by weight as the above component (2). It is appropriate to contain 0.1 to 2% by weight, preferably 0.2 to 1% by weight, and 1 to 30% by weight, preferably 3 to 20% by weight, of the alkylaminopropionate of component (3). .
If these components are less than the respective lower limit values described above, smoothness from the time of shampooing to rinsing may not be obtained, while if the above values are exceeded, the feeling of use becomes heavy and smoothness is not achieved. In some cases, a good texture at the finish cannot be obtained.
[0013]
In addition to the above components, the shampoo composition of the present invention may contain other components as appropriate according to the type of composition and intended use.
In particular, it is preferable to blend anionic and amphoteric surfactants as the cleaning component to be blended as the main agent. In this case, the anionic surfactant and amphoteric surfactant are variously selected. Examples of the anionic surfactant include polyoxyethylene alkyl ether sulfate, tetradecene sulfonate, polyoxyethylene alkyl ether acetic acid. Salts, polyoxyethylene sulfosuccinate, polyoxyethylene lauric acid monoethanolamide acetate, acyl sarcosine salt, N-lauroylmethyl-β-alanine salt, N-acylmethyl taurate salt, etc. Among them, polyoxyethylene alkyl Ether acetate is preferred. Examples of the amphoteric surfactant include alkyldimethylaminoacetic acid betaine, alkylamidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, and among them, alkylamidopropyl betaine is preferable. These amounts are usually 1-30% by weight of the total shampoo composition.
[0014]
Furthermore, as other optional components, nonionic surfactants, cationic surfactants, thickeners, wetting agents, antiseptic / disinfectants, cloudiness agents, antioxidants, which are components generally incorporated in shampoo compositions, 1 type (s) or 2 or more types, such as a ultraviolet absorber, a pigment | dye, and a fragrance | flavor, can be mix | blended. These can be used in such an amount that they are usually blended in a shampoo composition.
Specific examples thereof are as follows.
Nonionic surfactant: lipophilic or self-emulsifying glycerin monostearate, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene (POE) sorbitan fatty acid ester, POE hydrogenated castor oil, and the like.
Cationic surfactants: alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, alkyldimethylbenzylammonium chloride, lanolin ethylsulfate fatty acid aminopropylethyldimethylammonium and the like.
Thickeners: carboxymethyl cellulose and salts thereof, hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl pyrrolidone, coconut oil fatty acid diethanolamide, lauric acid diethanolamide, POE dioleic acid methyl glucoside, monostearic acid polyethylene glycol, distearic acid polyethylene glycol and the like.
[0015]
Wetting agent: glycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, sorbitol, polyglycerin, polyethylene glycol and the like.
Antiseptic / bactericidal agent: benzoate, salicylate, sorbate, paraoxybenzoate, triclosan, triclocarban, benzalkonium chloride, benzethonium chloride, hinokitiol, phenoxyethanol and the like.
Clouding agent: titanium oxide, zinc oxide, ethylene glycol monostearate, ethylene glycol distearate and the like.
Antioxidants: dibutylhydroxytoluene, dibutylhydroxyanisole, tocopherol acetate, ascorbic acid and its derivatives, natural vitamin E and the like.
UV absorber: 2-hydroxy-4-methoxybenzophenone, octyldimethylparaaminobenzoate, ethylhexylparamethoxycynamate, hydroxymethoxybenzophenonesulfonic acid and its salts, and the like.
[0016]
The shampoo composition of this invention can be manufactured in accordance with a conventional method. For example, components other than water may be heated and mixed, and water heated to the same degree may be gradually added to be uniform, and cooled to room temperature.
The shampoo composition of the present invention is also preferably transparent, and in a denaturation test using chicken egg white, the degree of denaturation is 50 or less with the color difference measured by the L * A * B * method as the degree of denaturation. It is an excellent one.
[0017]
【Example】
Hereinafter, examples will be given to describe the present invention in detail, but the present invention is not limited thereto.
[Examples 1 to 4 and Comparative Examples 1 to 5]
Each shampoo composition was prepared according to the composition (unit:% by weight) shown in Table 1 and Table 2 below.
The shampoo composition of each example was subjected to the following three tests. The test procedure and evaluation method are as follows.
1) Sensory test at the time of use and after use The subject's hair was divided in half, and the half head method using separate samples on the left and right sides was used. That is, the shampoo composition of Comparative Example 1 shown in Table 2 as a standard sample is used on one side, and the shampoo compositions of Examples 1 to 4 and Comparative Examples 2 to 5 shown in Table 1 and Table 2 are used as test samples on the other side. Used as. About 3 ml of each sample was applied and washed. At that time, sensory evaluation was performed according to the following scoring scores for the feeling of fingering at the time of shampooing and rinsing in the left and right hairs, and the texture after shampooing. The determination was made based on the total score of 10 subjects, and it was determined that the effect of the invention was achieved if the score was 15 points or more.
3 points: The test sample is considerably superior. 2 points: The test sample is superior.
1 point: The test sample is slightly better. 0 points: Equivalent.
-1 point: The standard sample is slightly better. -2 points: The standard sample is superior.
[0018]
2) Safety test for fingers 1% aqueous solutions of the shampoo compositions of Examples and Comparative Examples based on the compositions of Tables 1 and 2 were prepared and heated to 40 ° C. The tip was completely immersed in this solution from the wrist for 5 minutes, then rinsed with warm water and lightly removed with a towel or the like. This operation was repeated 5 times (once every 30 minutes), allowed to stand for 30 minutes after completion of the 5th time, and after it was completely dried, the state of the fingers was visually observed and evaluated according to the following scores.
Subject: Performed by 5 persons, judged by average, and judged to be less irritating if 2 or more.
3 points: No change. 2 points: Slightly gritty. 1 point: It is quite gritty.
Separately, the back of the hand was used as a test site, and the amount of keratin moisture reflecting the rough skin state was measured using SKICON 200 (IBS) before the start of the test and after the end of the test.
In addition, the amount of keratin moisture was evaluated by a numerical value of (after test / before test start) × 100.
[0019]
3) Denaturation test on chicken egg white Egg white was collected from commercially available egg and immediately sieved with 30 mesh. 0.1 g of each shampoo composition was added to 20 g of egg white that had been sieved, and the mixture was stirred for 2 minutes. The standard sample was egg white that had been sieved previously, and the color difference (ΔE) of the test sample with respect to the standard sample was measured using a color difference meter (manufactured by Nippon Denshoku Industries Co., Ltd .; SZ-Σ90), and L * A * B * Measured by the method. The color difference obtained here was defined as the degree of modification. Three measurements were taken per sample. The average was evaluated. Those having a degree of modification of 50 or less were judged to be highly safe.
The results of each test are shown in Table 3 below.
[0020]
[Table 1]

[0021]
[Table 2]

[0022]
In the shampoo compositions shown in the examples and comparative examples, components 1 to 4, 7, and 8 were uniformly mixed at 70 ° C., and 5 and 6 dissolved in a part of 9 were added thereto. After cooling to 0C, the remaining 9 was added and cooled to room temperature.
In both cases, a transparent shampoo composition was obtained.
[0023]
[Table 3]

[0024]
As is clear from the results shown in Table 3, all of the examples according to the present invention obtained better numerical values than the comparative examples. That is, the feeling of fingering from the time of shampooing to the time of rinsing and the texture after shampooing are relatively excellent, and a comprehensive conditioning effect can be obtained. In addition, it was found that there was little irritation to the fingers, and the low degree of egg white denaturation suggested that the degree of protein denaturation was low, thus indicating a highly safe shampoo composition.
[0025]

Preparation method: Components 2 to 4, 7 to 10 and 14 were uniformly stirred and mixed at 70 ° C., and 5 and 6 dissolved in a part of 15 were added thereto. Thereafter, 12 and the remaining 15 were added to make it uniform, and cooled to 50 ° C. Finally, 13 was added and the mixture was subsequently cooled to around room temperature.
[0026]
Example 6
A pearl shampoo (shampoo with a pearly luster in appearance) was prepared with the following composition (unit: wt%).

Preparation method: Components 1 to 4, 7 to 10 and 13 were uniformly mixed at 70 ° C., and 5 and 6 dissolved in a part of 15 were added thereto. Thereafter, 11, 12 and the remaining 15 were added to make it uniform and cooled to 50 ° C. Finally, 14 was added and the mixture was subsequently cooled to around room temperature.
[0027]
【The invention's effect】
The present invention provides a shampoo composition that imparts a smooth finger touch from the time of shampooing to the time of rinsing, gives the hair a good texture when finished, and has a low degree of protein denaturation and excellent skin safety. it can.

Claims (6)

(1) a copolymer of dimethyl diallyl ammonium salt and acrylic acid represented by the following formula (I), at least one selected from the group consisting of (2) cationized cellulose and cationized guar gum, and (3) the following general A shampoo composition comprising at least one selected from the group consisting of alkylaminopropionates represented by formula (II) or (III).

(In the formula, X ⁻ represents a halogen ion, and m and n are numerical values that make the molecular weight of the compound 1.5 million to 2 million).
(R—NHCH ₂ CH ₂ COO ⁻ ) Y ⁺ (II)
(In the formula, R is an alkyl group having 12 to 18 carbon atoms, and Y ⁺ represents Na ⁺ , K ⁺ or N ⁺ H (CH ₂ CH ₂ OH) ₃ ).

(In the formula, R is an alkyl group having 12 to 18 carbon atoms, and Z ⁺ represents Na ⁺ , K ⁺ or N ⁺ H (CH ₂ CH ₂ OH) ₃ ).   Based on the total weight of the shampoo composition, (1) a copolymer of dimethyl diallylammonium salt and acrylic acid is 0.1 to 5% by weight, (2) at least selected from the group consisting of cationized cellulose and cationized guar gum The shampoo composition according to claim 1, which contains 0.1 to 2% by weight of one kind and 1 to 30% by weight of (3) alkylaminopropionate.   2. The composition according to claim 1, comprising at least one selected from the group consisting of cationized cellulose having a nitrogen content of 0.5 to 2.0% and cationized guar gum having a nitrogen content of 1.0 to 3.0%. The shampoo composition according to 2.   The shampoo composition according to any one of claims 1 to 3, which has a degree of modification to chicken egg white of 50 or less and is transparent in appearance.   The shampoo composition according to any one of claims 1 to 4, wherein the alkylaminopropionate is at least one selected from the group consisting of sodium β-laurylaminopropionate and sodium laurylaminodipropionate. (1) A copolymer of dimethyldiallylammonium salt and acrylic acid represented by the general formula (I), (2) cationized cellulose, and (3) sodium β-laurylaminopropionate. The shampoo composition of any one of these.