JP2016193852A - Hair detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair detergent composition that is excellent in foaming power in washing, has sustainability of foam, and is good in passage of the comb through the hair after drying and in cleanability for styling agents, and moreover has good storage stability.SOLUTION: The hair detergent composition contains (a): 0.5 to 12 mass% of a polyoxyethylene alkyl ether type nonionic surfactant represented by the following formula (1) RO-(CHCHO)n-H, in the formula, Rrepresents a C10-14 straight-chain or branched-chain alkyl group or alkenyl group, and n represents a number from 85 to 150, (b): 5 to 30 mass% of laureth sulfate, or α-olefin sulfonate, (c): 0.05 to 2 mass% of cationic polymer, and (d): water, in which the mass ratio [b/a] of the content of the component (b) to the content of the component (a) is 2 to 15.SELECTED DRAWING: None

Description

  The present invention relates to a hair cleansing composition used for hair shampoos and the like.

  A hair cleanser composition such as shampoo is generally used in the form of foam, and by washing with the foam, it plays a role of preventing friction generated by direct contact between hair and fingers or between hairs. By preventing friction, unnecessary irritation to the hair can be reduced, and the comb of the hair after drying can be kept good. Therefore, the hair cleansing composition is required to have foamability and sustainability to the raised foam.

  In addition, hair styling agents such as wax agents used in recent years contain a large amount of oil and are likely to remain in the hair. Therefore, the hair cleaning composition is required to have high detergency for the styling agent. However, if a large amount of a surfactant is used to improve the detergency with respect to the styling agent, not only the styling agent but also oil necessary for hair is washed away. As a result, the hair after drying becomes stiff. A hair cleanser composition with good foaming and foam persistence can wrap a wide range of stains with foam even when used in a small amount and efficiently removes it, reducing hair stiffness and combing after drying. Make the streets good.

  In such a hair cleansing composition, a cationic polymer is generally used for the purpose of improving the persistence of foam by the thickening and the conditioning effect. However, as the amount of the cationic polymer increases, the persistence of the foam is improved, but the stability and foaming properties are reduced, and the hair becomes dull after drying, which causes new problems. End up. In particular, since stability as a product of a hair cleansing composition is an essential performance, it has not been achieved in practice to sufficiently improve the persistence of foam by incorporating a cationic polymer. .

  As another approach for improving foam quality, Patent Document 1 contains a polyoxyethylene-added nonionic surfactant, a quaternary ammonium salt, an anionic surfactant, a water-soluble polymer, and the foam is creamy. Proposals have been made for hair cleansing agents that have good combing after drying and are mild to skin and hair. However, the foam persistence was insufficient.

  Patent Document 2 contains a polyoxyethylene alkyl ether type nonionic surfactant, an anionic surfactant, a dialkyl diallylammonium salt and a copolymer of acrylamide, and has a foam amount, gloss of hair after drying, and suppleness. A cleaning agent with excellent stability has been proposed, but this technique also has insufficient foam persistence.

  In the inventions so far, it has not been possible to provide a cleaning composition that satisfactorily satisfies all of the foaming property, the persistence of foam, and the cleaning properties and stability of the styling agent in accordance with the hair comb after drying.

Japanese Patent Application Laid-Open No. 07-187967 Japanese Patent Laying-Open No. 2005-068051

  The problems to be solved by the present invention are excellent foaming power at the time of washing, long-lasting foam, good combing of the hair after drying and good styling, and good storage stability. It is providing the hair cleaning composition which is.

In order to solve the above-mentioned problems, the present inventors diligently studied. As a result, a nonionic surfactant having an EO chain having a specific chain length, laureth sulfate or α-olefin sulfonate, a cationic polymer, and water were added. The inventors have invented a hair cleansing composition containing a specific ratio.
That is, the present invention is the following [1].

[1] The following component (a), component (b), component (c) and component (d) are contained, the content of the component (a) is 0.5 to 12% by mass, The content of b) is 5-30% by mass, the content of component (c) is 0.05-2% by mass, and the content of component (b) relative to the content of component (a) The hair cleaning composition, wherein the mass ratio [b / a] is 2 to 15.
(A) the following formula (1);
R ¹ O— (CH ₂ CH ₂ O) n—H (1)
(Wherein R ¹ represents a linear or branched alkyl group or alkenyl group having 10 to 14 carbon atoms, and n represents a number of 85 to 150)
A polyoxyethylene alkyl ether type nonionic surfactant represented by the formula (b) laureth sulfate or α-olefin sulfonate (c) cationic polymer (d) water

  According to the present invention, there is provided a hair cleansing composition that has excellent foaming power at the time of washing, has long-lasting foam, and has good cleaning properties with respect to a styling agent and storage stability in accordance with the hair comb after drying. Can be provided.

Hereinafter, the present invention will be described in detail.
The present invention is a hair cleansing composition containing the following component (a), component (b), component (c) and component (d).

(Component (a))
The component (a) of the present invention is a polyoxyethylene alkyl ether type nonionic surfactant obtained by adding ethylene oxide to a long-chain alkyl or alkenyl alcohol (R ¹ OH), and an average addition mole number n of ethylene oxide is 85 to 85%. It is characterized by 150 mol. Specifically, it has a structure represented by the following formula.
R ¹ O— (CH ₂ CH ₂ O) n—H (1)
(Wherein R ¹ represents a linear or branched alkyl group or alkenyl group having 10 to 14 carbon atoms, and n represents a number of 85 to 150)

The long-chain alkyl or alkenyl alcohol (R ¹ OH) used as a starting material is not particularly limited, but is a saturated or unsaturated, linear or branched long chain having 10 to 14 carbon atoms. Alkyl or alkenyl alcohols can be used. Examples of such alcohols include decanol, lauryl alcohol, myristyl alcohol, and preferably lauryl alcohol and myristyl alcohol. These may be used alone or in appropriate combination of two or more. In addition, a long-chain alkyl or alkenyl alcohol obtained by reducing natural fats and oils such as coconut oil and palm kernel oil, the main components of which are lauryl alcohol and myristyl alcohol, can also be suitably used.

When the carbon number of R ¹ is less than 10, the foam persistence is insufficient. From this viewpoint, the carbon number of R ¹ is 10 or more, but 12 or more is preferable. On the other hand, if the carbon number of R ¹ exceeds 14, the sustainability of the bubbles is insufficient.

  The added mole number n of ethylene oxide is 85 to 150 mol, preferably 90 to 135 mol, more preferably 95 to 120 mol. If the number of moles of ethylene oxide added is too small, the sustainability of the foam will be insufficient, and if it is too large, the viscosity at the time of melting will be extremely high and handling will be poor. It becomes insufficient.

  Content of the component (a) in the hair cleaning composition of this invention is 0.5-12 mass%, Preferably it is 1.0-9.0 mass%, More preferably, it is 2.0-6. 0% by mass. When the content of the component (a) is too small, the sustainability of the foam becomes insufficient. When the content is too large, the viscosity of the cleaning agent increases and the foaming property of the foam decreases.

(Component (b))
Component (b) of the present invention is laureth sulfate or α-olefin sulfonate.
Laureth sulfate is an anionic surfactant of alkyl ether sulfates, and is a salt of polyoxyethylene glycol ether of lauryl alcohol and an ester of sulfuric acid. Those having an average addition mole number of these ethylene oxides of 1 to 4 moles can be used.
Examples of the α-olefin sulfonate include α-olefin sulfonate having 8 to 18 carbon atoms.

Examples of the laureth sulfate salt of component (b) or the α-olefin sulfonate salt include alkali metal salts and organic amine salts. Examples of the alkali used include inorganic alkalis such as sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate; organic alkalis such as monoethanolamine, diethanolamine, triethanolamine, trimethylamine and triethylamine. In the present invention, it is preferable to use an alkali metal salt from the viewpoint of foaming of the hair cleaning composition, and a potassium salt is more preferable in order to keep the hair cleaning composition in a liquid state.
These may be used alone or in combination of two or more.

  Content of the component (b) in the hair cleaning composition of this invention is 5-30 mass%, Preferably it is 7-25 mass%, More preferably, it is 8-20 mass%. If the content of the component (b) is too small, foaming properties and detergency will be insufficient, and if it is too large, combing of the hair after drying will be insufficient.

Furthermore, the mass ratio [b / a] of the content of the component (b) to the content of the component (a) is 2 to 15, preferably 3 to 12, and preferably 4 to 8.
If [b / a] is too small, the foaming property is insufficient, and if it is too large, the sustainability of the bubble is insufficient.

(Component (c))
Component (c) is for improving viscosity and feel. The cationic polymer of component (c) is not particularly limited. For example, a homopolymer of dialkyl diallylammonium chloride, a copolymer of dialkyl diallylammonium chloride and (meth) acrylate, dialkyl diallylammonium chloride and (meth) acrylate ester Copolymer, dialkyldiallylammonium chloride and (meth) acrylamide copolymer, polychlorinated methacryloyloxyethyltrimethylammonium chloride, cationized cellulose, cationized starch, cationized guar gum, cationized tara gum, cationized locust bean Gum, cationized fenugreek gum, cationized xanthan gum, copolymer of vinylimidazolinium trichloride and vinyl pyrrolidone, hydroxyethyl cellulose And dimethyldiallylammonium chloride copolymer, vinylpyrrolidone and dimethylaminoethyl methacrylate copolymer, polyvinylpyrrolidone, alkylaminoacrylate and vinylcaprolactam copolymer, vinylpyrrolidone and methacryloylamidopropyltrimethylammonium chloride Examples thereof include a copolymer, a copolymer of alkylacrylamide, acrylate, alkylaminoalkylacrylamide, and polyethylene glycol methacrylate, a copolymer of adipic acid and dimethylaminohydroxypropylethylenetriamine, and the like. It may be used alone or in combination of two or more.

  Content of the component (c) in the hair cleaning composition of this invention is 0.05-2 mass%, Preferably it is 0.1-1.5 mass%, More preferably, 0.2-1. 1% by mass. If the content of the component (c) is too small, the combing of the hair after drying becomes insufficient, and if it is too much, the low temperature stability is deteriorated.

(Component (d))
The component (d) of the present invention is water, and purified water such as distilled water or ion exchange water can be preferably used.

  As described above, in the present invention, the component (a), the component (b), the component (c) and the component (d) are used in combination as described above, so that the foaming power at the time of cleaning is excellent. A hair cleansing composition that has long-lasting foam and good cleaning properties and stability with respect to the styling agent in accordance with the hair comb after drying is obtained.

  In the hair cleaning composition of the present invention, a dramatic improvement in the persistence of foam is realized. Although this mechanism of action has not been proved, it can be inferred from the following reason. When a gas-liquid interface is newly formed in the foam, the component (b) having excellent dynamic surface tension is quickly adsorbed from the water to the interface and stabilizes the interface. After component (b) is adsorbed on the interface, component (a) is adsorbed on the interface of the foam film with a delay. At this time, by stabilizing the interface of component (b), entanglement of the polyoxyethylene polymer chain of component (a), thickening of the foam film by component (c), and drainage in the foam film by these three actions This is thought to be due to a drop in speed that dramatically improves the persistence of the foam. When the number of moles of ethylene oxide added as the component (a) is 85 or more, the polyoxyethylene polymer chains are entangled, and the bubbles last for a sufficient time.

(Hair cleaning composition)
Furthermore, other optional components can be added to the hair cleaning composition of the present invention as long as the effects of the invention are not impaired. Examples of such optional components include fats and oils such as vegetable oils and animal fats; hydrocarbon oils such as squalane, liquid paraffin and hydrogenated polyisobutene; higher alcohols such as cetyl alcohol, stearyl alcohol and cetostearyl alcohol; Silicones such as dimethylpolysiloxane and amino-modified polysiloxane; ester oils such as 2-ethylhexyl palmitate, glyceryl tri (capryl / caprate), isopropyl myristate; stearyltrimethylammonium chloride, benzalkonium chloride, cocoylarginine ethyl PCA Anionic surfactants other than component (b) such as fatty acid soap; alkyldimethylaminoacetic acid betaine, alkylcarboxymethylhydroxyl Amphoteric surfactants such as tyrimidazolinium betaine, alkylamidopropyl betaine, alkylhydroxysulfobetaine, alkyliminodiacetate; components such as polyoxyethylene alkyl ether, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester (a Nonionic surfactants other than); solvents such as ethanol; pH adjusters such as citrate, succinate, malate, and tartrate; antioxidants such as tocopherol; polysaccharides, amino acids, peptides, preservatives , Fragrances, colorants and the like can be appropriately blended.

  The pH value of the hair cleansing composition of the present invention is not particularly limited, but is preferably 5.0 to 11.0, more preferably 6.5 to 10.0 at 25 ° C. and a 10% by mass aqueous solution. More preferably, it is 6.5 to 9.0. When the pH is lower than 5.0, the foamability is insufficient, and when the pH is higher than 11.0, there is a concern about irritation to the skin.

Hereinafter, the present invention will be described more specifically with reference to examples.
<Preparation of hair cleaning composition>
All the raw materials of Examples 1 to 9 and Comparative Examples 1 to 14 shown in Table 1 and Table 2 were put into a beaker and stirred for 1 hour using a propeller while heating in a water bath at 60 ° C. After confirmation of dissolution, it was cooled to 40 ° C. or lower.

<Evaluation of hair cleaning composition>
A usability test was conducted by 20 professional panelists. Each prepared hair was washed with 5 g of each prepared composition, rinsed with tap water, lightly wiped with a towel, and then dried using a dryer. 1) Foamability during washing, 2) Sustainability of foam, 3) Comb after drying, 4) Detergency for styling agent, each panelist will make a four-point evaluation based on the following absolute evaluation and give a score It was. The results of each evaluation are shown in Table 1 and Table 2.

1) Foaming property at the time of washing The foaming property at the time of washing with 5 g of the hair detergent composition was evaluated according to the following criteria. An average score of 20 panelists evaluated 3.0 or more as acceptable. However, even if the average score was 3.0 or more, if one or more panelists evaluated as 1 point, it was judged as rejected.
4: Foaming during cleaning is very good.
3: Foaming during cleaning is quite good.
2: There is not much foaming at the time of washing.
1: There is almost no foaming at the time of washing | cleaning.

2) Sustainability of foam during washing The sustainability of foam during washing with 5 g of the hair detergent composition was evaluated according to the following criteria. An average score of 20 panelists evaluated 3.0 or more as acceptable. However, even if the average score was 3.0 or more, if one or more panelists evaluated as 1 point, it was judged as rejected.
4: Very good foam retention.
3: Good bubble retention.
2: Poor foam retention
1: Foam retention is very bad.

3) Combing hair after drying The hair was rinsed and rinsed with 5 g of the hair cleaning composition, and the hair was dried and evaluated according to the following criteria. An average score of 20 panelists evaluated 3.0 or more as acceptable. However, even if the average score was 3.0 or more, if one or more panelists evaluated as 1 point, it was judged as rejected.
4: The combing of the hair after drying is good 3: The combing of the hair after drying is slightly good 2: The combing of the hair after drying is slightly bad 1: The combing of the hair after drying is bad

4) Detergency for styling agent Using hair styling agent as usual for each person, use 5g of hair rinsing composition, shampoo and rinse. And evaluated. An average score of 20 panelists evaluated 3.0 or more as acceptable. However, even if the average score was 3.0 or more, if one or more panelists evaluated as 1 point, it was judged as rejected.
4: The styling agent falls well 3: The styling agent falls slightly good 2: The styling agent falls slightly bad 1: The styling agent falls badly

5) Low temperature stability 50 g of the hair cleansing composition was put in a 100 mL screw tube and the appearance when it was allowed to stand in a thermostatic bath at 5 ° C. for 1 month was visually observed and judged according to the following criteria. The evaluation results are shown in Tables 1 and 2.
○: Precipitation and cloudiness do not occur, and it is transparent.
Δ: There is a fluorescent color.
X: Crystals are precipitated and cloudy.

In addition, the detailed content of the compounding material abbreviated in the table | surface is as follows.
Cationic polymer 1: cationized cellulose (“Leoguard MGP”, trade name, manufactured by Lion Corporation)
Cationic polymer 2: guar hydroxypropyltrimonium chloride (“Kachinal CG-100” manufactured by Toho Chemical Industry Co., Ltd., trade name)
Cationic polymer 3: Polyquaternium-10 (“Poise C-150L”, trade name, manufactured by Kao Corporation)
Cationic polymer 4: Polyquaternium-44 (manufactured by BASF Japan Ltd., “Rubi Coat Ultracare”, trade name)

  As shown in each table, each of the hair cleansing compositions of Examples 1 to 9 according to the present invention has sufficient foaming properties at the time of washing, and has the durability of the foam being washed, The combing of the hair after drying and the detergency to the styling agent were good, and the low-temperature stability was good.

  On the other hand, in Comparative Examples 1-14, sufficient effect was not acquired. That is, since the comparative example 1 did not mix | blend a component (a), the sustainability of foam was inadequate. Since the comparative example 2 used more than 12 mass% of components (a), the foamability at the time of washing | cleaning was inadequate. In Comparative Examples 3 and 4, POE (60) lauryl ether or POE (30) lauryl ether having an EO addition mole number of less than 85 was used in place of component (a), and thus the foam persistence was insufficient. It was.

  In Comparative Example 5, since POE (100) stearyl ether having an alkyl group having 18 carbon atoms was used in place of component (a), the foam persistence was insufficient. In Comparative Example 6, since polyethylene glycol was used in place of the component (a), the foam persistence was insufficient. In Comparative Example 7, potassium laurate was used in place of the component (b), so that the hair was combed after drying and the detergency to the styling agent was insufficient.

  In Comparative Example 8, since the component (b) was used in an amount of less than 5% by mass, the foaming property during cleaning and the cleaning property with respect to the styling agent were insufficient. Since the comparative example 9 used the component (b) more than 30 mass%, the comb of the hair after drying was inadequate.

  Since the comparative example 10 did not mix | blend a component (c), the comb of the hair after drying was inadequate. In Comparative Example 11, since the component (c) was used in an amount of more than 2% by mass, the combing after the hair and the stability were insufficient. In Comparative Example 12, since the mass ratio [b / a] of the content of the component (b) to the content of the component (a) was smaller than 2, the foamability at the time of washing was insufficient. In Comparative Example 13, since the mass ratio [b / a] of the content of the component (b) to the content of the component (a) was greater than 15, the foam persistence was insufficient. In Comparative Example 14, since hydroxyethyl cellulose was used in place of the component (b), the combing of the hair after drying was insufficient.

  The hair cleaning composition of the present invention can be used as a shampoo for hair, a shampoo for pets, and the like.

Claims (1)

The following component (a), component (b), component (c) and component (d) are contained, the content of the component (a) is 0.5 to 12% by mass, and the component (b) Content is 5-30 mass%, Content of the said component (c) is 0.05-2 mass%, Mass ratio of content of the said component (b) with respect to content of the said component (a) [B / a] is 2 to 15, wherein the hair cleanser composition.
(A) the following formula (1);
R ¹ O— (CH ₂ CH ₂ O) n—H (1)
(Wherein R ¹ represents a linear or branched alkyl group or alkenyl group having 10 to 14 carbon atoms, and n represents a number of 85 to 150)
A polyoxyethylene alkyl ether type nonionic surfactant represented by the formula (b) laureth sulfate or α-olefin sulfonate (c) cationic polymer (d) water