JP5005495B2 - Shampoo composition - Google Patents

Description

  The present invention relates to a shampoo composition. More specifically, the present invention relates to a shampoo composition containing an anionic surfactant, a specific dicarboxylic acid diester, and a rose extract.

  Conventionally, in shampoo compositions such as hair shampoo compositions, anionic surfactants are often used for reasons such as good foaming and detergency, and cost advantages.

  On the other hand, dicarboxylic acid diesters are known to have an effect of removing keratin plugs in the pores of the scalp and keeping the scalp clean.

In JP-A-10-120532, the above-mentioned Patent Document 1 proposes an invention for a scalp / hair cosmetic containing a dicarboxylic acid diester as a scalp removal agent for scalp. In the examples, an anion is used as a surfactant. A shampoo containing a functional surfactant and a dicarboxylic acid diester is disclosed.

  However, dicarboxylic acid diester is a component having a relatively high lipophilicity. On the other hand, a shampoo composition containing an anionic surfactant is aqueous. Therefore, there was a problem that the compatibility of the dicarboxylic acid diester in the shampoo composition was poor. More specifically, for a shampoo composition using an anionic surfactant, for example, even if the dicarboxylic acid diester can be blended at normal temperature without any trouble, when the shampoo composition changes to a low temperature, the dicarboxylic acid diester As a result, the shampoo composition becomes cloudy and the appearance as a product is impaired, and the uniformity as the composition is lost. Furthermore, since the dicarboxylic acid diester inhibited the good foaming property of an anionic surfactant, it turned out that there exists a problem of impairing the usability of a shampoo.

  In order to solve the problem caused by the compatibility of the dicarboxylic acid diester, it is possible to stably solubilize the dicarboxylic acid diester by blending a solvent such as ethanol into the shampoo composition. However, in this case, as is well known, these solvents further reduce the foamability of the anionic surfactant. In addition, these solvents are accompanied by a problem that sebum is excessively removed and scalp rusting occurs.

  Therefore, the present invention is a technique to solve the problem of ensuring high scalp detergency, sufficient storage stability, and good usability in a shampoo composition using an anionic surfactant and containing a dicarboxylic acid diester. As an objective.

  In the process of investigating the means for solving the above problems, the inventor of the present application has surprisingly discovered that the composition of rose extract known as a scent component or an antioxidant ability component is an effective problem solving means. The present invention has been completed.

(First invention)
The structure of the 1st invention of this application for solving the said subject is a shampoo composition containing the following (A) component-(C) component.
(A) component: 1 or more types of anionic surfactant.
Component (B): One or more selected from dicarboxylic acid diesters represented by the general formula “R ₁ OCO-X-COOR ₂ ” interpreted according to the following (1) to (3).

(1) Each of R ₁ and R ₂ is a) a linear or branched C2-C18 saturated or unsaturated hydrocarbon group, b) a (poly) oxyethylene group, and c) ( It represents any one of the poly) oxypropylene groups, or represents a group in which two or more of these groups are linked by a monovalent bond. R ₁ and R ₂ may be the same or different.

(2) In R ₁ and R ₂ in which two or more types of groups a) to c) are linked, the same type of group is contained in two or more groups with other types of groups interposed. There is a case. These two or more groups may be the same or different in chemical structure.

(3) X is a single bond, a hydrocarbon group “—CH ₂ —” having 1 carbon atom, or a saturated or unsaturated hydrocarbon group having 2 to 22 carbon atoms which is linear or has a branched chain. Then, any hydrogen atom in the chemical structure of these hydrocarbon groups may be substituted with a hydroxyl group.
(C) Ingredient: Rose extract.

  In the shampoo composition of the first invention, since an anionic surfactant is contained as the component (A), foaming and detergency are good, and high scalp detergency is ensured. Also, it is advantageous in terms of cost. Next, since the dicarboxylic acid diester is contained as the component (B), it is possible to expect the effect of removing the pore plugs of the scalp pores and keeping the scalp clean, and higher scalp detergency or good use A feeling is secured.

  Furthermore, in the shampoo composition of the first invention, since the rose extract is contained as the component (C), the compatibility problem of the dicarboxylic acid diester described above is solved, and sufficient storage stability is maintained even at a low temperature. And a good feeling of use is ensured. In addition, unlike a solvent such as ethanol, the rose extract does not suffer from the disadvantage that the foaming property of the anionic surfactant is reduced or the scalp becomes bruised due to the removal of sebum.

  The reason why the composition of the rose extract exerts such an effect has not been fully elucidated, but as a presumption, aroma components such as terpene alcohol contained in the rose extract solubilize the dicarboxylic acid diester even at a low temperature. It seems that they are working. Of course, a preferable fragrance and antioxidant ability are also given based on the composition of the rose extract.

  The rose extract (rose extract) is selected from centifolia rose extract and damask rose extract, and its use form is not limited. For example, centifolia rose flower which is an aqueous phase obtained by steam distillation of rose petals You may mix | blend with the form of the rose flower water (rose water) chosen from water and damask rose flower water.

  As particularly preferred rose water, “rose water” described in “Japan Cosmetic Raw Materials Collection 2007” (edited by the Japan Cosmetic Industry Association) can be exemplified. This is water containing a fragrance component obtained by distilling a centifolia flower. In addition, “natural ingredients obtained by distilling or extracting a Western rose petal by distillation or solution” as defined in the former cosmetic compounding ingredient standard can also be exemplified. Examples of commercially available products of rose water include “Rose Water” and “Rose Water PF” manufactured by Ichimaru Falcos, “Rose Extract” manufactured by Koei Kogyo Co., Ltd. and the like.

  In addition, what is marketed by brand names, such as a "no rose extract" and a "rose hip extract", is a canina rose (rose hip) fruit extract, and does not correspond to the rose extract of the present invention.

(Second invention)
The configuration of the second invention of the present application for solving the above-mentioned problem is a shampoo containing the component (B) and the component (C) according to the first invention within a range of B / C = 5 to 8000 by mass ratio. It is a composition.

  In the shampoo composition of the first invention described above, the content of the component (B) and the component (C) is not necessarily limited, but the mass ratio of the component (B) and the component (C) is defined as defined in the second invention. In the range of B / C = 5 to 8000, the detergency and low-temperature stability of the shampoo composition are further improved. Note that “C” in the mass ratio notation of B / C means the net mass of the rose extract. Therefore, when blending distilled water, solution, mixture, etc. containing rose extract as component (C) into the shampoo composition, the value of B / C is calculated from the mass of only the rose extract contained therein. The

(Third invention)
The configuration of the third invention of the present application for solving the above-mentioned problems is that the component (B) according to the first invention or the second invention is diisopropyl sebacate, diethyl sebacate, PPG-2-miles-10 adipate, adipic acid The shampoo composition is one or more selected from diPPG-3 myristyl, diethoxyethyl succinate and diisopropyl adipate. Among the components (B), PPG-2-myles-10 adipate and diPPG-3 myristyl adipate are INCI names.

In the shampoo composition of the first invention or the second invention described above, the component (B) is not limited as long as it corresponds to the general formula described above, but one or more selected from the compound group listed in the third invention It is particularly preferred that In the general formula of the component (B) described above, the total Cx of the carbon number of the hydrocarbon group directly bonded to the carboxylic acid residue in the alcohol residue R ₁ and R ₂ is the carbon of the dicarboxylic acid. It is equal to or less than the total number Cy.

  The shampoo composition of the present invention is a shampoo composition using an anionic surfactant and containing a dicarboxylic acid diester, and can ensure high scalp detergency, sufficient storage stability, and good usability. .

  Next, modes for carrying out the present invention will be described including the best mode.

[Shampoo composition]
The shampoo composition according to the present invention contains at least the following components (A) to (C). These components will be described in detail in the section “Essential components of shampoo composition” described later.
(A) component: 1 or more types of anionic surfactant.
Component (B): general formula _"R 1 OCO-X-COOR ₂ 'with at least one selected from a dicarboxylic acid diester represented.
(C) component:
Rose extract.

  The shampoo composition according to the present invention may contain, in addition to the above-described components, auxiliary components that are generally used as necessary within a range not inhibiting the effects of the present invention. These components are described in detail in the section “Other components of shampoo composition” described later.

  Although the use of the shampoo composition is not particularly limited, it is preferably used as a body cleanser, particularly preferably as a hair cleanser (hair shampoo). It can also be used as a post-treatment agent for a permanent wave treatment, a hair bleaching treatment, an oxidative hair dyeing treatment or an acid hair dyeing treatment.

  The dosage form of the shampoo composition can be arbitrarily selected from various known dosage forms according to its use and intended use. Preferable examples include liquid, emulsion, cream, gel, paste, mist (spray type), aerosol foam and the like. In particular, a liquid form and a gel form are suitable.

The pH of the shampoo composition is not particularly limited, but is generally preferably about pH 3.0 to 8.0, and particularly preferably about pH 3.5 to 7.0. If the pH is less than 3.0, there is a concern about the deterioration of the hair feel due to excessive convergence of the hair protein, and if the pH exceeds 8.0, there is a concern about hair damage due to the decomposition of the hair protein. In addition, when using the above-mentioned shampoo composition for post hair dyeing treatment, a pH of about 4.0 to 7.0 is preferable.
[Essential component of shampoo composition]
((A) component)
(A) The kind of anionic surfactant which is a component is not limited, For example, 1 type or 2 of a sulfate ester salt type, a phosphate ester salt type, a sulfonate type, and a carboxylate type anionic surfactant More than seeds can be contained. The content of the component (A) in the shampoo composition is not limited and can be arbitrarily determined as necessary.

  The sulfate ester type anionic surfactants are: 1) alkyl sulfate salts such as sodium lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, etc. 2) polyoxyethylene (hereinafter POE) Abbreviated) lauryl ether sulfate sodium, POE lauryl ether sulfate triethanolamine, POE lauryl ether ammonium sulfate, POE alkyl ether sodium sulfate, POE alkyl ether sulfate triethanolamine, alkyl such as POE alkyl ether sulfate diethanolamine, POE alkyl ether ammonium sulfate and POE Alkyl aryl ether sulfates such as alkyl phenyl ether sulfates, 3) hardened coconut oil fatty acid glycerin Sulfuric acid ester salts of higher fatty acid ester salts such as sodium sulfate, 4) sulfate salts of higher fatty acid alkylol amide, 5) can be exemplified sulfated castor oil.

  Phosphate salt type anionic surfactants include lauryl phosphate, POE lauryl ether phosphate, POE oleyl ether phosphate, POE cetyl ether phosphate, POE stearyl ether phosphate, POE alkyl ether phosphate, POE alkyl Examples thereof include phenyl ether phosphoric acid and salts thereof (sodium salt, triethanolamine salt).

  Examples of the sulfonate type anionic surfactant include 1) α-olefin sulfonate such as tetradecene sulfonate, 2) sulfonate of higher fatty acid ester, 3) coconut oil fatty acid methyl taurine sodium, lauroyl methyl Sulfates of higher fatty acid amides such as sodium taurine 4) Alkylbenzene sulfonates such as triethanolamine dodecylbenzene sulfonate 5) Sodium sulfosuccinate, disodium lauryl sulfosuccinate, disodium POE sulfosuccinate, lauryl POE sulfosuccinate Examples thereof include sulfosuccinates such as disodium, sulfosuccinic acid POE lauroyl ethanolamide ester disodium, and undecylenoylamidoethylsulfosuccinate.

  Examples of carboxylate type anionic surfactants include N-acyl sarcosine salts such as sodium lauroyl sarcosine, N-lauroyl-L-glutamate sodium, N-lauroyl-L-glutamate triethanolamine, N-stearoyl-L- N-acyl amino acid salts such as disodium glutamate, sodium N-myristoyl-L-glutamate, sodium lauroyl aspartate, sodium N-lauroyl-N-methyl-β-alanine, sodium N-lauroyl-N-methyl-β-alanine And N-acyl-N-alkyl amino acid salts such as POE, ether carboxylates such as POE lauryl ether sodium acetate, and N-acyl peptide salts such as coconut oil fatty acid hydrolyzed collagen collagen.

((B) component)
The dicarboxylic acid diester as the component (B) is at least one selected from dicarboxylic acid diesters represented by the general formula “R ₁ OCO-X-COOR ₂ ”. This general formula is interpreted according to the following (1) to (3).

(1) R ₁ and R ₂ each represent an alcohol residue in a dicarboxylic acid diester, a) a saturated or unsaturated hydrocarbon group having 2 to 18 carbon atoms that is linear or has a branched chain; a group in which any one of b) (poly) oxyethylene group and c) (poly) oxypropylene group is represented, or two or more of these groups are linked by a monovalent bond Represents. R ₁ and R ₂ may be the same or different. The bond between R ₁ and R ₂ with respect to “X” in the general formula is an ester bond, and the above “monovalent bond” is an ether bond.

(2) In R ₁ and R ₂ in which two or more types of groups a) to c) are linked, the same type of group is contained in two or more groups with other types of groups interposed. There is a case. These two or more groups may be the same or different in chemical structure. That is, in this case, R ₁ and R ₂ are, for example, a first “b” group ester-bonded to “X” in the general formula and an ether bond to the other end of this “b” group. The second “b” group further ether-bonded to the other end and the first “b” group and the second “b” group can be formed. 'May be the same or different groups.

(3) X is a single bond, a hydrocarbon group “—CH ₂ —” having 1 carbon atom, or a saturated or unsaturated hydrocarbon group having 2 to 22 carbon atoms which is linear or has a branched chain. Then, any hydrogen atom in the chemical structure of these hydrocarbon groups may be substituted with a hydroxyl group. “X is a single bond” refers to a case where “—X—” in the general formula “R ₁ OCO—X—COOR ₂ ” represents a single single bond, and the above general formula represents an oxalic acid diester.

Particularly preferred as the component (B) is that the total carbon number Cx of the hydrocarbon groups directly bonded to the carboxylic acid residues in R ₁ and R ₂ which are alcohol residue parts is the total Cy number of carbon atoms of the dicarboxylic acid. It is 1 or more types of (B) component which is the same number or less.

Particularly preferred as component (B) is one selected from diisopropyl sebacate, PPG-2-miles-10 adipate, diPPG-3 myristyl adipate, diethoxyethyl succinate, diisopropyl adipate and diethyl sebacate That's it. In diisopropyl sebacate, Cx = 6 and Cy = 10. In adipic acid PPG-2-miles-10, Cx = 6 and Cy = 6. In diPPG-3 myristyl adipate, Cx = 6 and Cy = 6. In diethoxyethyl succinate, Cx = 4 and Cy = 4. In diisopropyl adipate, Cx = 6 and Cy = 6. In diethyl sebacate, Cx = 4 and Cy = 10.
The content of the component (B) in the hair shampoo composition is not limited, but is preferably in the range of 0.005% by mass to 20% by mass in order to fully exhibit the effects of the present invention. It is particularly preferable that the content be in the range of 10% by mass to 10% by mass.

((C) component)
As the rose extract as the component (C), as described above with respect to preferable examples and use forms, in addition to the extract (extract) of centifolia rose (Rosa centifolia) or damask rose (Rosa damascena), these extracts A distillate or extract containing, or a concentrated or diluted solution thereof can be used without particular limitation.

Although content of (C) component in a shampoo composition is not limited, in order to fully demonstrate the effect of this invention, it exists in the range of 1.0 * 10 <^-6> mass% (1 ppm)-2 mass%. It is particularly preferable that it is in the range of 1.0 × 10 ⁻⁶ mass% to 1 mass%.

  The content ratio of the component (B) and the component (C) is not limited, but is preferably in a range where B / C = 5 to 8000 in terms of mass ratio.

[Other components of shampoo composition]
In addition to the components (A) to (C) described above, the shampoo composition of the present invention includes an oil component, a hydrocarbon, and (A) as long as the properties of the shampoo composition and the effects of the present invention are not impaired. Surfactants other than the ingredients, cationic compounds, polymer substances, protein hydrolysates, pH buffer ingredients, chelating agents such as sugars, amino acids, vitamins, ceramides, edetates, sterilizers, antiseptics such as methylparaben UV absorbers, propellants, thickeners, pearling agents, inorganic salts, solvents, animal and plant extract components, and the like can be blended as necessary or arbitrarily. Specific examples of some of these components are listed below.

  Examples of the oil component include silicone derivatives, polyhydric alcohols, fats and oils, waxes, higher alcohols, higher fatty acids, alkyl glyceryl ethers, esters other than the component (B), and the like. One of these can be blended alone, or two or more can be blended together.

  Examples of silicone derivatives include dimethylpolysiloxane and its terminal hydroxy-modified products (for example, dimethiconol), poly (oxyethylene / oxypropylene) / butylene / methylpolysiloxane copolymer, polyether-modified silicone, dimethylpolysiloxane, and methylphenylpolysiloxane. , Decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, amino-modified silicone, dimethicone / vinyl dimethicone crosspolymer, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, etc., poly (oxyethylene / oxypropylene) Butylene / methylpolysiloxane copolymer, dimethiconol or polyether-modified silicone is particularly preferred.

  Examples of the polyhydric alcohol include glycols, glycerols, and alicyclic polyols. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerins include glycerin, diglycerin, and polyglycerin. Examples of the alicyclic polyol include cyclopentane polyol and cyclohexane polyol such as inositol.

  Examples of fats and oils include various vegetable oils and animal oils.

  Examples of the waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin and the like.

  Higher alcohols include lauryl alcohol, myristyl alcohol, cetyl alcohol (cetanol), stearyl alcohol, cetostearyl alcohol, aralkyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, oleyl Alcohol, linoleyl alcohol, linolenyl alcohol, lanolin alcohol, etc. are mentioned.

  Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolin fatty acid. It is done.

  Examples of the alkyl glyceryl ether include batyl alcohol (monostearyl glyceryl ether), chimyl alcohol (monocetyl glyceryl ether), selachyl alcohol (monooleyl glyceryl ether), and isostearyl glyceryl ether.

  Examples of the esters include any monocarboxylic acid ester, dicarboxylic acid monoester, and dicarboxylic acid diesters other than the component (B). For example, various monoesters of dicarboxylic acids such as oxalic acid, succinic acid, sebacic acid and adipic acid can be mentioned. In addition, various esters of monocarboxylic acids such as lactic acid, acetic acid, stearic acid, myristic acid, ricinoleic acid, octanoic acid and isooctanoic acid are also included.

(hydrocarbon)
Examples of the hydrocarbon include α-olefin oligomer, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, squalane, polybutene, paraffin, polyethylene powder, microcrystalline wax, petrolatum and the like.

(Surfactant)
As the surfactant, a cationic, nonionic or amphoteric surfactant other than the anionic surfactant described above can be blended.

  Cationic surfactants include lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, distearyldimethylammonium chloride, behenyltrimethylammonium sulfate, tri (POE) stearylammonium chloride, quaternium-91 (INCI name) , Behenyltrimethylammonium chloride, distearyldimethylammonium chloride, ethyl lanolin sulfate fatty acid amidopropylethyldimethylammonium bromide, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin, N, N-di ( Acyloxy) -N- (hydroxyethyl) -N-methylammonium Door sulfate, and the like.

  Nonionic surfactants include fats such as POE alkyl ethers, POE alkylphenyl ethers, POE / polyoxypropylene alkyl ethers, POE sorbitan fatty acid esters, POE propylene glycol fatty acid esters, coconut oil fatty acid monoethanolamide, etc. Group alkanolamides, POE alkyl glucosides, polyoxyalkylene alkyl diethers and the like.

  Examples of amphoteric surfactants include 2-undecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine sodium, coconut oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, and lauryldimethylaminoacetic acid betaine.

(Polymer substance)
Examples of the polymer substance include various polymer substances excluding the cationic polymer as the following cationic compound, for example, an anionic polymer such as carboxyvinyl polymer, and an amphoteric polymer such as diallyl quaternary ammonium salt / acrylic acid copolymer. And cellulose derivatives such as hydroxyethylcellulose, hydroxypropylmethylcellulose and carboxymethylcellulose salts, and various water-soluble polymers. One of these can be blended alone, or two or more can be blended together.

  Specific examples of other high-molecular substances include plant polymers such as gum arabic, carrageenan, pectin, agar, starch, hydroxypropyl starch phosphate, microbial polymers such as xanthan gum, dextran, pullulan, collagen, casein, gelatin, etc. Other examples include animal polymers such as sodium alginate, carboxyvinyl polymer, highly polymerized polyethylene glycol, sodium polyacrylate, polyacrylamide, and the like.

(Cationic compound)
The cationic compound refers to a compound whose aqueous solution exhibits a cationic property. The type of the cationic compound is not limited, but particularly preferred examples include cationic oligomers and cationized sugar derivatives excluding the above-mentioned cationic surfactants, and other examples include cationic polymers. One of these can be blended alone, or two or more can be blended together.

  Examples of the cationic oligomer include cationized hydrolyzed proteins. Examples of the cationized sugar derivative include cationized oligosaccharide, cationized honey, and cationized chitosan.

  Cationic polymers include cationized cellulose such as polyquaternium-4 and polyquaternium-10 (both INCI names), cationized guar gum, cationized starch, quaternized polyvinylpyrrolidone derivatives, diallyl quaternary ammonium salt polymer derivatives. Etc.

(Protein hydrolyzate)
As protein hydrolysates, proteins such as collagen, keratin, elastin, fibroin, egg, silk, conchiolin, casein, and gelatin, rice, wheat, barley, excluding the above-mentioned cationized hydrolyzed protein and N-acyl peptide salt Examples thereof include protein hydrolysates obtained by hydrolyzing proteins obtained from plants such as oats, soybeans, peas, almonds, Brazil nuts, potatoes, and corns with acids, alkalis, enzymes, and the like.

(PH buffer component)
As the pH buffer component, an acid component is preferably an organic acid and an alkali component is preferably an organic alkali. As the organic acid, carboxylic acid is particularly preferable, and in particular, one selected from glycolic acid, lactic acid, malic acid, citric acid, tartaric acid and succinic acid is preferable. Examples of the organic alkali include volatile alkali components such as ammonia and morpholine, alkanolamines such as monoethanolamine and triethanolamine, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1 Amino alcohols such as 1,3-propanediol, and basic amino acids such as L-arginine, L-lysine and L-histidine.

(Sugar)
Examples of the saccharide include monosaccharide and disaccharide or more oligosaccharides and sugar alcohols, and specific examples include glucose, xylose, maltose, cellobiose, lactose, isomaltose, sucrose, chitobiose, cellotriose, maltotriose, raffinose, trehalose. , Stachyose, cellotetraose, cellopentaose, maltotetraose, maltopentaose, sorbitol, xylitol, maltitol and the like.

(solvent)
Examples of the solvent include lower alcohols such as ethanol and isopropanol, aromatic alcohols such as benzyl alcohol and benzyloxyethanol, and N-methylpyrrolidone.

Examples of the present invention will be described below together with comparative examples. The technical scope of the present invention is not limited by these.
[First Example Group]
Gel shampoo compositions having compositions according to Examples 1 to 9 shown in Table 1 at the end and Comparative Examples 1 to 7 shown in Table 2 were prepared according to a conventional method.

  Numerical values indicating the content of each component in Tables 1 and 2 and Tables 3 and 4 described below are expressed in units of mass%. Among the components shown in Table 1 to Table 4, those with “(A)” in front of the component name are components (A), and those with “(B)” in front of the component name The component (B) indicates that the component name preceded by “(C)” is the component (C). Moreover, the column of “(B) / (C)” described in the column above the evaluation item column of each table shows the mass ratio “B / C” of the content of the component (B) and the component (C). Show.

  About the shampoo composition which concerns on each Example and comparative example of Table 1 and Table 2, "detergency", "low temperature stability", and "foaming" were evaluated in the following ways.

(Evaluation of cleaning power)
About the shampoo composition which concerns on each Example and a comparative example, 10 panelists each used for hair as usual, and judged whether detergency was good. A shampoo composition with 7 or more panelists who answered that the detergency was good was “◎”, a shampoo composition with 6 to 4 persons was “◯”, and a shampoo composition with 3 to 1 persons was “ “Δ”, the shampoo composition which was 0 persons was evaluated as “x”.

(Evaluation of low temperature stability)
The shampoo compositions according to each of the examples and comparative examples were transparent gels at the time of preparation. The appearance changes after being placed in a transparent glass bottle for 24 hours were evaluated. “◎” if clear and no problem, slightly cloudy, but “○” if it becomes transparent as the temperature rises to room temperature, transparent, even if the temperature rises to room temperature The case where it did not become "x" was evaluated.

(Evaluation of foaming)
About the shampoo composition which concerns on each Example and a comparative example, 10 panelists each used for hair as usual, and judged whether foaming was good. The shampoo composition in which 7 or more panelists replied that foaming was good was “、”, the shampoo composition in 6 to 4 people was “◯”, and the shampoo composition in 3 to 1 people was “△” The shampoo composition, which was 0, was evaluated as “x”.

(Evaluation results)
1) In the shampoo compositions of Examples 1 to 6 including all of the components (A) to (C) and having a B / C value in the range of 5 to 8000, the detergency, low-temperature stability, foaming All the evaluations were “◎”.

  2) In Example 7, which contains all of the components (A) to (C) but the component (C) is relatively small and the B / C value exceeds the range of 5 to 8000, the low-temperature stability evaluation is “ ○ ”was somewhat inferior. On the other hand, in Example 8 which contains all of the components (A) to (C) but the component (B) is relatively insufficient and the B / C value falls below the range of 5 to 8000, the cleaning power evaluation is “◯ "I was not good enough."

  3) Example 9 includes all components (A) to (C), and the B / C value is in the range of 5 to 8000, but dioctyl succinate as component (B) is a dicarboxylic acid diester. The relationship between Cx and Cy described above with respect to the general formula is Cx = 16, Cy = 4, and “Cx> Cy”. In Example 9, both the low-temperature stability evaluation and the cleaning power evaluation were “◯”, which was somewhat inferior.

  4) In Comparative Example 1 in which the anionic surfactant as the component (A) in Example 1 was replaced with the same amount of amphoteric surfactant, the low temperature stability was “◯”, which was not a problem, but the detergency and foaming Both were bad with "x".

  5) In Comparative Example 2 in which the component (B) in Example 1 was eliminated and in Comparative Example 3 in which the component (B) in Example 1 was replaced with isopropyl myristate, the detergency was both “x” and poor.

  6) In Comparative Example 4 in which the component (C) in Example 1 was eliminated, and in Comparative Example 5 in which the component (C) in Example 1 was replaced with canina rose fruit extract, both the low-temperature stability was poor and the detergency and foaming were also poor. It was.

7) In Comparative Example 6 and Comparative Example 7 in which the component (C) in Example 1 was replaced with a certain amount of ethanol generally used as a low temperature stability improver, the low temperature stability was good. However, the cleaning power is inferior, and foaming is particularly bad.
[Second Example Group]
Gel shampoo compositions having compositions according to Examples 10 to 18 shown in Table 3 at the end and Examples 19 to 24 shown in Table 4 were prepared according to a conventional method.

  Of Example 10 to Example 18 shown in Table 3, Example 10 has the same composition as that of Example 1, and Example 11 to Example 18 are the same as those in Example 10 except that component (A) is of the same type. The amount is replaced with the component (A).

  Of Example 19 to Example 24 shown in Table 4, Example 19 has the same composition as that of Example 1, and Examples 20 to 24 have the same component (B) in Example 19 as other types. The amount is replaced by the component (B).

(As a result of evaluation)
The shampoo compositions according to Examples 10 to 24 shown in Tables 3 and 4 all satisfy the requirements of the first invention to the third invention as in Example 1, but the detergency and low temperature stability are all satisfied. All evaluations of foaming were “「 ”.

  According to the present invention, in a hair shampoo composition containing an anionic surfactant and a dicarboxylic acid diester, high scalp detergency, sufficient storage stability, and good usability can be ensured.

Claims (4)

A shampoo composition comprising the following components (A) to (C):
(A) component: 1 or more types of anionic surfactant.
Component (B): One or more selected from dicarboxylic acid diesters represented by the general formula “R ₁ OCO-X-COOR ₂ ” interpreted according to the following (1) to (3).
(1) Each of R ₁ and R ₂ is a) a linear or branched C2-C18 saturated or unsaturated hydrocarbon group, b) a (poly) oxyethylene group, and c) ( It represents any one of the poly) oxypropylene groups, or represents a group in which two or more of these groups are linked by a monovalent bond. R ₁ and R ₂ may be the same or different.
(2) In R ₁ and R ₂ in which two or more types of groups a) to c) are linked, the same type of group is contained in two or more groups with other types of groups interposed. There is a case. These two or more groups may be the same or different in chemical structure.
(3) X is a single bond, a hydrocarbon group “—CH ₂ —” having 1 carbon atom, or a saturated or unsaturated hydrocarbon group having 2 to 22 carbon atoms which is linear or has a branched chain. Then, any hydrogen atom in the chemical structure of these hydrocarbon groups may be substituted with a hydroxyl group.
(C) Ingredient: An extract of rose petals . The component (B) and the component (C) are contained within a range in which the content of the component (B) and the content of the net (net) of the component (C) are B / C = 5 to 8000 in mass ratio. The shampoo composition according to claim 1. The component (B) is at least one selected from diisopropyl sebacate, diethyl sebacate, PPG-2-myles-10 adipate, diPPG-3 myristyl adipate, diethoxyethyl succinate and diisopropyl adipate The shampoo composition according to claim 1 or claim 2, wherein The shampoo composition according to any one of claims 1 to 3, wherein the component (C) is a petal extract of centifolia rose or damask rose.