JP5656276B2 - Shampoo composition - Google Patents

Description

  The present invention relates to a shampoo composition capable of imparting firmness and stiffness (elasticity) to washed hair.

  In recent years, research on methods for suppressing such phenomena has been progressing as anti-aging of hair because hair tends to become thinner with age, and its elasticity and firmness (elasticity) tend to decrease. In addition, the importance of anti-aging hair products in the market is increasing.

  Specific examples of products that are conscious of anti-aging of hair include, for example, hair cosmetics such as shampoos that are blended with various ingredients such as plant extract oils and protein hydrolysates to give the hair firmness and stiffness. (For example, Patent Documents 1 and 2).

  In addition, in shampoos, by increasing the amount of cationized polymer that has the ability to form a film on the surface of the hair, a good film is formed on the surface of the hair after washing, thereby enhancing the elasticity of the hair. It is also generally done.

JP 2007-77029 A JP 2007-238515 A

  However, at present, even in the above-described technique, further improvement is required in terms of giving the hair firmness and stiffness. In particular, in a shampoo containing a large amount of cationized cellulose as a cationized polymer, cationized cellulose tends to remain on the hair surface after shampooing. There is also a problem that the feel of the hair is impaired.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a shampoo composition capable of imparting firmness and stiffness to washed hair.

The shampoo composition of the present invention capable of achieving the above object comprises an amphoteric surfactant, an anionic surfactant, a cationized polymer, a polyhydric alcohol , a polyoxyethylene fatty acid glycerin represented by the following general formula (1), and Polyoxyethylene sorbite tetrafatty acid ester is blended at least, and as the polyoxyethylene sorbit tetrafatty acid ester, tetraoleic acid polyoxyethylene sorbit, tetrastearic acid polyoxyethylene sorbit, or tetraisostearic acid polyoxyethylene sorbit is blended It is characterized by this.

  According to the present invention, it is possible to provide a shampoo composition capable of imparting firmness and stiffness to washed hair.

  In the shampoo composition of the present invention, the polyoxyethylene fatty acid glycerin represented by the general formula (1) and the polyhydric alcohol are used in combination, so that the hair after washing is firm and firm (feeling of elasticity). It is possible to give a foam quality.

  As is clear from the above general formula (1), the polyoxyethylene fatty acid glycerin used in the shampoo composition of the present invention has a characteristic structure in which one of the hydroxyl groups of glycerin remains as a hydroxyl group. doing.

  In addition, in said general formula (1), n is an integer of 5-10, However, It is especially preferable that it is 7. Moreover, although the fatty acid residue in the said General formula (1) is a C8-C25 fatty acid residue, specifically, a coconut oil fatty acid residue, a stearic acid residue, a palmitic acid residue, A lauric acid residue, a myristic acid residue, a palmitic acid residue, a caprylic acid residue, a capric acid residue, an oleic acid residue, etc. are mentioned, and a coconut oil fatty acid residue is particularly preferable.

  As such polyoxyethylene fatty acid glycerin represented by the above general formula (1), for example, “M Fine Oil COG-7M” (polyoxyethylene coconut oil fatty acid glycerin) commercially available from Miyoshi Oil & Fats Co., Ltd. is used. it can.

  The blending amount of the polyoxyethylene fatty acid glycerin represented by the general formula (1) in the shampoo composition is the effect by using the polyoxyethylene fatty acid glycerin (each of the above effects by using in combination with a polyhydric alcohol). ) Is preferably 0.1% by mass or more, and more preferably 0.5% by mass or more from the viewpoint of ensuring better. However, if the amount of the polyoxyethylene fatty acid glycerin represented by the general formula (1) in the shampoo composition is too large, the hair after washing tends to be stiff. Therefore, the blending amount of the polyoxyethylene fatty acid glycerin represented by the general formula (1) in the shampoo composition is preferably 5% by mass or less, and more preferably 3% by mass or less.

  Examples of the polyhydric alcohol used in the shampoo composition include ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,3-butylene glycol, glycerin, polyglycerin, and the like. Only 1 type may be used and 2 or more types may be used together. Among these, propylene glycol is preferable because the hair feel after washing becomes better, and in the case where a shampoo composition of a transparent agent type is used, propylene glycol is preferably used in order to further improve the stability of transparency. More preferably, it is used in combination with glycol.

  The blending amount of the polyhydric alcohol in the shampoo composition is more favorable for the effects obtained by using the polyhydric alcohol [each of the above effects by using the polyoxyethylene fatty acid glycerin represented by the general formula (1)]. From the viewpoint of ensuring the above, it is preferably 0.1% by mass or more, and more preferably 1% by mass or more. However, if the amount of polyhydric alcohol in the shampoo composition is too large, the hair after washing tends to become stiff. Therefore, the blending amount of the polyhydric alcohol in the shampoo composition is preferably 5% by mass or less, and more preferably 3% by mass or less.

  Moreover, when using together propylene glycol and polypropylene glycol with a polyhydric alcohol, it is preferable that the ratio (mass ratio) of propylene glycol and polypropylene glycol shall be 5: 1 to 1: 1.

  Moreover, an anionic surfactant is used for the shampoo composition of this invention. Examples of the anionic surfactant include coconut oil fatty acid sodium, coconut oil fatty acid potassium, cocoyl isethionic acid and salts thereof (sodium salt, potassium salt, etc.), polyoxyethylene lauryl ether acetic acid and salts thereof (sodium salt, potassium salt). Salt), disodium alkylsulfosuccinate, sodium lauroyl hydrolyzed silk, isostearic acid hydrolyzed silk AMP (2-amino-2-methyl-1-propanol salt of condensate of isostearic acid and hydrolyzed silk), cocoyl Hydrolyzed soybean protein potassium, cocoyl hydrolyzed collagen salt (sodium salt, potassium salt, etc.), sodium tetradecenesulfonate, sodium lauryl sulfate, triethanolamine lauryl sulfate, polyoxyethylene lauryl ether Sodium acid, polyoxyethylene lauryl ether triethanolamine sulfate, polyoxyethylene lauryl ether phosphoric acid and its salts (sodium salt, potassium salt, etc.), acylamino acid and its salt [lauroyl aspartic acid, coconut oil fatty acid acyl glutamic acid, lauroyl glutamic acid , Acyl amino acids such as myristoyl glutamic acid, stearoyl glutamic acid, coconut oil fatty acid methylalanine, lauroylmethylalanine, myristoylmethylalanine, coconut oil fatty acid acylglycine, coconut oil fatty acid methyltaurine, lauroylmethyltaurine, coconut oil fatty acid sarcosine, lauroyl sarcosine, and And salts of these acylamino acids (sodium salt, potassium salt, triethanolamine salt, etc.)] It may be used only one of, or in combination of two or more kinds.

  The compounding amount of the anionic surfactant in the shampoo composition is preferably 2 to 25% by mass. If the amount of the anionic surfactant in the shampoo composition is too small, the detergency tends to be weak, and if it is too large, the hair after washing tends to be stiff.

  Furthermore, an amphoteric surfactant is used in the shampoo composition of the present invention. Examples of amphoteric surfactants include amidopropyl betaine type amphoteric surfactants such as lauric acid amidopropyl betaine solution, palm oil fatty acid amidopropyl betaine, isostearic acid amidopropyl betaine, linoleic acid amidopropyl betaine, and palm oil fatty acid amidopropyl betaine. Imidazoline type amphoteric surfactants such as undecyl-N-hydroxyethyl-N-carboxymethylimidazolinium betaine and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine; N-alkyl-N, N -Sodium dimethylammonium-N-propylsulfonate, sodium N-alkyl-N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonate, N-fatty acid amidopropyl-N, N-dimethyla Sulfobetaine-type amphoteric surfactants such as sodium ammonium-N- (2-hydroxypropyl) sulfonate; amidoamine oxide-type amphoteric surfactants such as amidopropyldimethylamine oxide laurate; Only seeds may be used, or two or more kinds may be used in combination.

  The blending amount of the amphoteric surfactant in the shampoo composition is preferably 0.5 to 20% by mass. If the amount of the amphoteric surfactant in the shampoo composition is too small, foaming tends to decrease, and if it is too large, the hair after washing tends to become stiff.

  In addition, a cationized polymer is used in the shampoo composition of the present invention. Examples of the cationized polymer include cationized cellulose (such as O- [2-hydroxy-3- (trimethylammonio) propyl] hydroxyethylcellulose chloride), cationized guar gum, cationized starch, dimethyldiallylammonium chloride / acrylamide copolymer. Examples include coalescence.

  It is preferable that the compounding quantity of the cationized polymer in a shampoo composition is 0.01-1 mass%, for example. If the amount of the cationized polymer in the shampoo composition is too small, the effect of using the cationized polymer (the effect of improving the feel of the hair after washing) may be reduced. There is a tendency for hair to become stiff due to continuous use of the shampoo composition.

  The shampoo composition preferably further contains a polyoxyethylene sorbite fatty acid ester. By adding polyoxyethylene sorbit fatty acid ester, the foam quality (speed of foaming and fineness of foam) of the shampoo composition is improved, and the treatment paste applied to the hair after washing with the shampoo composition. It becomes possible to finish the hair which feels thick especially at the hair tip which tends to become thin.

  Examples of the polyoxyethylene sorbite fatty acid ester include polyoxyethylene (30) sorbite tetraoleate, polyoxyethylene (40) sorbitol tetraoleate, polyoxyethylene (60) sorbitol tetraoleate, polyoxyethylene tetrastearate (60) Sorbit etc. are mentioned (in addition, the numerical value in the parenthesis after “polyoxyethylene” in each polyoxyethylene sorbite fatty acid ester means the average added mole number of oxyethylene unit.) .

  The blending amount of the polyoxyethylene sorbite fatty acid ester in the shampoo composition is preferably 0.05% by mass or more from the viewpoint of better securing the above effects by using the polyoxyethylene sorbite fatty acid ester. More preferably, the content is 0.1% by mass or more. However, if the amount of polyoxyethylene sorbite fatty acid ester in the shampoo composition is too large, the hair after washing tends to be stiff. Therefore, the blending amount of the polyoxyethylene sorbite fatty acid ester in the shampoo composition is preferably 5% by mass or less, and more preferably 3% by mass or less.

  The shampoo composition of the present invention uses water as a solvent in the same manner as a normal shampoo. It is preferable that the compounding quantity of the water in a shampoo composition is 25-85 mass%, for example.

  In addition to the above-mentioned components, various known components can be added to the shampoo composition of the present invention as components capable of imparting firmness and stiffness to the hair. Examples of such components include proteins and derivatives thereof, sodium salt of a condensate of N-lauroyl-L-glutamic acid and lysine, dimethiconepropyl PG betaine (PG is an abbreviation for propylene glycol), methoxy PEG / PPG-7 / 3 aminopropyl dimethicone (PEG is an abbreviation for polyethylene glycol, PPG is an abbreviation for polypropylene glycol, and the subsequent numerical values are molar ratios of PEG and PPG), partamidopropyltrimonium chloride, Examples include aramidpropyldimethylamine and creatine.

  Furthermore, in addition to the above components, various components blended in a hair cosmetic composition such as a normal shampoo can be added to the shampoo composition of the present invention as necessary. Examples of such additional components include oils (lanolin derivatives, liquid paraffin, higher fatty acids, higher alcohols, ester oils, silicone oils, etc.), thickeners that adjust the ease of taking out shampoo compositions, and hair after shampooing. Conditioning agents (conditioning agents other than the above-mentioned components) that reduce creaking and improve the finish feeling, antioxidants and chelating agents for discoloration and oxidation prevention, anti-dandruff agents, bactericides, UV absorbers, wetting Agents, fragrances and the like.

  The shampoo composition of the present invention can be prepared by dissolving or dispersing each of the above components in water as a solvent.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In Tables 1 and 2 below, the blending amount of each component is shown in% so that it is 100% for the entire shampoo composition and in Table 3 for the entire treatment agent. In Tables 1 to 3, the display of% is omitted, and only the numerical value indicating the blending amount is displayed.

Examples 1-7 and Comparative Examples 1-4
The shampoo compositions of Examples 1-7 and Comparative Examples 1-4 were prepared with the compositions shown in Tables 1 and 2.

  In addition, some of the raw materials used for the preparation of the shampoo composition include components (solvents and the like) other than the components listed in the table. In Tables 1 and 2, these raw materials are included. The amount of only the components described in the table is shown as the blending amount. And in Table 1 and Table 2, "the total is 100" in the column of purified water means the total amount of each component other than purified water constituting the shampoo composition (raw materials including components other than the components listed in the table) Means that the amount of purified water is 100% by adding the amount of “purified water” to the “total amount including the amount of components other than those listed in the table”.

  In addition, “POE (7) coconut oil fatty acid glycerin”, “POE (15) monostearate glycerin”, “tetraoleic acid POE (60) sorbit”, “POE (10) sodium lauryl ether acetate” in Tables 1 and 2 "And POE (2) sodium lauryl ether sulfate", "POE" is an abbreviation for "polyoxyethylene", and the number in parentheses after POE is the average number of moles of oxyethylene units added. Furthermore, “PPG” of “PPG-17” in Tables 1 and 2 is an abbreviation for “polypropylene glycol”, and the numerical value after PPG is the average number of moles of oxypropylene units added.

  In addition, “coconut oil fatty acid N-methylethanolamide” in Table 1 and Table 2 is used as a viscosity modifier of the shampoo composition, and “appropriate amount” in the blending amount is the viscosity of the shampoo composition. It means that it was blended in such an amount as to be 1000 cps.

In addition, the raw material used for preparation of the shampoo composition of Examples 1-7 and Comparative Examples 1-4 is as follows.
(1) POE (7) Palm oil fatty acid glycerin: “M Fine Oil COG-7M (trade name)” manufactured by Miyoshi Oil & Fats Co., Ltd.
(2) POE (15) glyceryl monostearate: “NIKKOL TMGS-15V (trade name)” manufactured by Nikko Chemicals.
(3) Tetraoleic acid POE (60) Sorbit: “NIKKOL GO-460V (trade name)” manufactured by Nikko Chemicals.
(4) POE (10) sodium lauryl ether acetate: “NIKKOL AKYPO-RLM100NV (trade name)” manufactured by Nikko Chemicals.
(5) POE (2) Sodium lauryl ether sulfate: “Sandet EN (trade name)” manufactured by Sanyo Chemical Industries.
(6) Cationized cellulose: “Poise C-80M (trade name)” manufactured by Kao Corporation.
(7) Amidopropyl betaine laurate: “Amphitol 20AB (trade name)” manufactured by Kao Corporation.
(8) PPG-17: “New Pole PP-1000 (trade name)” manufactured by Sanyo Chemical Industries.

  Panelists consisted of 10 women with hair longer than the shoulders, each with one expert evaluator, and the effects of using the shampoo compositions of the examples and comparative examples were evaluated using the hair of the panelists. did.

  As a standard product, 3 g of the shampoo composition of Comparative Example 1 was applied to the left half of the head of each panelist, and the shampoos of Examples 1 to 7 or Comparative Examples 2 to 4 were applied to the right half of the head. 3 g of the composition was applied, washed, and rinsed with water. Next, 6 g of the treatment having the composition shown in Table 3 was applied to each panelist's hair after washing, and after thoroughly blending in, it was washed away. Then, each panelist's hair was dried with a dryer and finished.

  In Table 3, the column “purified water” in the column of purified water is 100% by adding the amount of purified water to the total amount of components other than purified water constituting the treatment agent. It means that.

  After washing with the shampoo composition, before applying the treatment agent, for the hair of each panelist, the elasticity and stiffness of the hair in the right half of the head is used as described above, based on the elasticity and stiffness of the hair in the left half of the head. A professional evaluator evaluated. The foam quality of the shampoo composition applied to the right half of the head is used as a reference for the foam quality of the shampoo composition applied to the left half of the head (the shampoo composition of Comparative Example 1). Evaluated. In addition, for each panelist's hair after the treatment agent was applied and washed, dried with a dryer, and finished, the right side of the head, based on the firmness, stiffness, and tip thickness of the left half of the head The above-mentioned expert evaluator evaluated the elasticity, stiffness, and hair tip thickness of half the hair.

Each of the above evaluations was scored in five stages as follows, and the scores of all the evaluators were totaled. These results are shown in Table 4.
Good ... +2.
Somewhat good +1.
Neither ... 0.
Not very good ...- 1.
Not good ... -2.

In addition, five hairs were collected from the heads of the panelists after washing with the shampoo compositions of Examples 1 to 7 and Comparative Examples 1 to 4, and Young's modulus was measured. The Young's modulus was measured as follows. About each collected hair, it stops with the tape containing glass fiber of 1 cm width from the point 4 cm away from the hair tip, and stops with the tape containing glass fiber of 1 cm width again as the start end 2 cm away from the above-mentioned 2 The diameter (major axis and minor axis) of the 2 cm-wide hair between the glass fiber-containing tapes was measured with a micrometer. After immersing these samples in distilled water for 24 hours, the breaking weight of the 2 cm-wide hair was measured with a tensile tester (Tensilon meter) to obtain an underwater strong elongation curve. The initial slope of the underwater strength elongation curve is the Young's modulus (10 ⁹ N / m ² ). The larger the Young's modulus value, the better the firmness and stiffness of the hair.

  The results are shown in Table 4. The Young's modulus of the hair after the treatment is an average value of all measured values obtained for the hair of 10 panelists (5 each).

  As is clear from Table 4, the shampoo compositions of Examples 1 to 7 are those of Comparative Example 1 in which the polyoxyethylene fatty acid glycerin represented by the general formula (1) and the polyhydric alcohol are not blended. Compared to the above, the foam quality is good and the firmness and firmness of the hair after washing are improved, and the hair after finishing with the treatment agent also has a sense of firmness, firmness and hair tip thickness by sensory evaluation, and The elasticity and stiffness evaluated from the Young's modulus are good.

  In contrast, in place of the polyoxyethylene fatty acid glycerin represented by the general formula (1), polyoxyethylene (15) glycerin monostearate, which is a polyoxyethylene fatty acid glycerin having a structure in which no hydroxyl group of glycerin remains. In the shampoo composition of Comparative Example 2 using No. 1, the foam quality and the firmness, stiffness, and thickness of the hair tips after washing and finishing with the treatment agent are inferior.

  In the shampoo composition of Comparative Example 3 in which no polyhydric alcohol is blended and the shampoo composition of Comparative Example 4 in which the polyoxyethylene fatty acid glycerin represented by the general formula (1) is not blended, Further, the firmness and stiffness of the hair after washing are inferior, the Young's modulus of the hair after finishing with the treatment agent is small, and the firmness and stiffness of the hair evaluated thereby are inferior.

Claims (2)

Amphoteric surfactant, anionic surfactant, cationized polymer, polyhydric alcohol, polyoxyethylene fatty acid glycerin represented by the following general formula (1) and polyoxyethylene sorbit tetra fatty acid ester are blended at least ,
A shampoo composition comprising tetraoleic acid polyoxyethylene sorbite, tetrastearic acid polyoxyethylene sorbite, or tetraisostearic acid polyoxyethylene sorbite as the polyoxyethylene sorbite tetrafatty acid ester.

The shampoo composition according to claim 1, wherein propylene glycol is blended as the polyhydric alcohol.