JP2013155143A - Hair detergent composition for foam discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair detergent for a foam discharge container, capable of discharging a creamy foam without clogging even at a low temperature and capable of keeping a good formation of foams under low temperature in a winter season, and having a high rinsing effect.SOLUTION: Provided is a hair detergent composition containing: (A) 3-25 wt.% amphoteric surfactant as a specific composition; (B) 0.3-0.8 wt.% cationized cellulose having a molecular wt. of 400,000-1,500,000 and a cationic nitrogen content of 1-2.5% (mass%), and remainder water. The inorganic salt content is less than 1.0 wt.%, and the viscosity at 10°C is less than 30 mPa s.

Description

  The present invention relates to a hair cleaning composition for a foam discharge container that can discharge creamy foam without clogging the foam discharge container even at low temperatures and has a high rinse-in effect.

  A detergent product for skin or hair that is used by filling a foam discharge container with a liquid detergent composition and ejecting it as fine foam eliminates the need for foaming and alleviates irritation to the skin, hair and scalp, etc. There are advantages. In such detergent products, it is considered preferable to maintain the composition at a low viscosity in order to obtain uniform foam, and it is difficult to divert a general high viscosity liquid detergent as it is.

  In particular, rinse-in type hair cleansing agents are difficult to commercialize because a large amount of cationized polymer as a conditioning component is blended to cause ejection failure due to clogging or thickening.

  For example, Patent Document 1 discloses (a) an anionic surfactant, (b) an amphoteric surfactant and / or a semipolar nonionic surfactant, and (c) a cationic polymer compound and / or an amphoteric polymer. A liquid detergent composition containing a compound and housed in a container that is discharged in the form of foam is described. However, the said composition has prescribed | regulated the upper limit of the compounding quantity of a high molecular compound, and has the performance inadequate as a hair washing material with a rinse-in effect.

  Patent Document 2 discloses a skin obtained by filling a foam discharge container with an aqueous liquid detergent composition containing (a) polyoxyethylene alkyl ether sulfate and (b) cationized cellulose and having a pH of less than 6. Detergent compositions are described. However, this Patent Document 2 also describes that when the blending amount of cationized cellulose exceeds 0.05% by weight, the viscosity increases to cause ejection failure.

  Furthermore, Patent Document 3 contains (a) a specific acyl taurine salt, (b) an amphoteric surfactant, (c) a cationized starch, has no clogging in the container, is excellent in conditioning effect with creamy foam, A pump former cleaner with good low temperature stability is described. In this invention, the amount of cationized starch is as high as 0.01 to 2% by weight. Compared with cationized cellulose and cationized guar gum derivatives, cationized starch has a weak rinse-in effect, I can't get it. Furthermore, in Patent Document 3, when other cationic polymers such as a cationized cellulose derivative, a cationized guar gum derivative, a dimethyldiallylammonium derivative or the like are used, the stability and the like are inferior, and the effects of the present invention cannot be obtained. It is described.

Japanese Patent No. 3815538 JP 2005-162666 A JP 2009-292269 A

  The object of the present invention is to discharge a creamy foam without clogging the foam discharge container even at a low temperature, and can maintain a good foam formability even at a low temperature such as in winter, and a rinse-in effect It is providing the hair washing agent for foam discharge containers with high.

  As a result of intensive studies to achieve the above object, the present inventor has formulated a specific cationized cellulose having a high rinse-in effect and a specific surfactant, thereby preventing clogging of the container and providing a creamy and stable foam. Furthermore, it was found that the foam formation was excellent even at low temperatures such as in the winter, and the present invention was achieved.

  The present invention relates to (A) the general formula (1)

[However, in the formula, R ¹ CO represents an acyl group having 8 to 18 carbon atoms, and R ² and R ³ each independently represents a hydrogen atom or a general formula (2)

[Wherein, m represents an integer of 1 to 3, and M is a counter containing a hydrogen atom]
And R ² and R ³ do not simultaneously become a hydrogen atom. ]
An amidoamine type amphoteric surfactant represented by
General formula (3)

[Wherein R ¹ , m and M are the same as described above. ]
An amphoteric surfactant characterized in that the weight ratio of (3) / {(1) + (3)} is 0.7 or less: 3 to 25% by weight,
(B) Cationic cellulose having a molecular weight of 400,000 to 1,500,000 and a cationic nitrogen content of 1 to 2.5% (mass%): 0.3 to 0.8% by weight,
In addition, the present invention provides a hair cleansing composition for a foam discharge container, which contains water and the balance, has an inorganic salt content of 1.0% by weight or less, and a viscosity at 10 ° C. of 30 mPa · s or less.

  According to the present invention, it is possible to provide a hair cleaning agent for a foam discharge container having a creamy and sufficient rinse-in effect without clogging even at low temperatures.

  Hereinafter, embodiments of the present invention will be described.

  Component (A) used in the present invention is an amphoteric surfactant generally referred to as an amidoamine type. This surfactant is prepared by condensation reaction of fatty acid and aminoethylethanolamine to prepare an imidazoline compound as an intermediate and react with a quaternizing agent such as monochloroacetic acid in the presence of a basic substance under specific conditions. Is obtained. Here, at the time of the reaction of the quaternizing agent, depending on the setting of the conditions, there is a reaction competition between the ring opening of the imidazoline ring and the quaternization, and a mixture of the component (1) and the component (3) is generated. As a result of changing the composition ratio of the general formulas (1) and (3) and evaluating the thickening at low temperature, the composition ratio (3) / {(1) + (3)} based on weight is 0.7 or less, and the cation It has been found that even when a large amount of cellulose is added, the viscosity does not increase and the stability at low temperature is improved. When the composition ratio is 0.7 or more, the viscosity is increased at a low temperature and the dischargeability is deteriorated.

  The compounding amount of the component (A) in the hair detergent composition for a foam discharge container of the present invention is 3 to 25% by weight, preferably 5 to 20% by weight, based on the entire composition. When the blending amount is less than 3% by weight, the effect of suppressing the thickening due to the cationized cellulose is insufficient, and the dischargeability is deteriorated due to the thickening. On the other hand, if it exceeds 25% by weight, the viscosity of the resin itself increases and the discharge performance deteriorates.

  Component (B) used in the present invention is a cationized cellulose having a molecular weight of 400,000 to 1,500,000 and a cationic nitrogen content of 1 to 2.5% (mass%), which is an essential component for producing a rinse-in effect and making the foam creamy. It is. Commercially available products include, for example, Poise C-H60 (molecular weight 600,000, N content 2.2%), Poise C-M80 (molecular weight 800,000, N content 1.5%), Poise C-L150 (molecular weight 1,500,000, N Content 1.3%) (above, manufactured by Kao Corporation); Polymer JR400 (molecular weight 400,000, N content 1.7%) (manufactured by Union Carbide); Katchinal LC-100 (molecular weight 400,000, N content 1.0 %), Kachinal HC-100K (molecular weight 400,000, N content 2.0%), kachinal LC-200 (molecular weight 1.5 million, N content 1.2%) (above, manufactured by Toho Chemical Co., Ltd.). The compounding quantity of the component (B) in the hair cleaning composition for foam discharge containers of this invention is 0.3 to 0.8 weight% with respect to the whole composition, Preferably 0.4 to 0.6 weight% desirable. If the blending amount is less than 0.3% by weight, a sufficient rinsing-in effect cannot be obtained, and if it exceeds 0.8% by weight, the viscosity increases and the dischargeability deteriorates. Further, even if the molecular weight is 400,000 or less, a sufficient rinse-in effect cannot be obtained, and clogging occurs when the molecular weight exceeds 1,500,000. Furthermore, if the cationic nitrogen content is less than 1% (mass%), the adsorptivity to the hair is insufficient and a sufficient rinse-in effect cannot be obtained, and if it exceeds 2.5% (mass%), the component (A), (B) causes aggregation and liquid stability deteriorates.

  Furthermore, if the content of the inorganic salt exceeds 1.0% by weight, the cationic polymer is agglomerated and precipitated at a low temperature, which is not preferable. Furthermore, the content of the inorganic salt is desirably 0.5% by weight or less. When the viscosity of the liquid exceeds 30 mPa · s, it becomes difficult to push the pump, and when it exceeds 50 mPa · s, it becomes difficult to discharge bubbles.

  In the present invention, when an N-acylamino acid type anionic surfactant is added as the component (C), the low-temperature thickening is suppressed, and the component (A) having a slightly lower foaming power is assisted and foamed. There is an effect to improve. Specific examples include N-acyl glutamate having a linear or branched alkanoyl group or alkenoyl group having 10 to 18 carbon atoms, more specifically, N-lauroyl glutamic acid, N-myristoyl glutamic acid, N- Examples include palmitoyl glutamic acid, N-stearoyl glutamic acid, N-oleoyl glutamic acid, N-cocoyl glutamic acid and the like. Examples of N-acylglutamic acid salts include alkali metal salts such as sodium salts and potassium salts; alkanolamine salts such as triethanolamine salts and monoethanolamine salts; basic amino acids such as lysine salts, arginine salts, and histidine salts. Salt. Of these, potassium N-lauroyl-L-glutamate and potassium N-myristoyl glutamate are particularly preferable in terms of foamability. Other than these, N-acylglycine type surfactants, N-acylmethylalanine type surfactants, N-acylalanine type surfactants and the like can be mentioned. The compounding amount of the component (C) in the hair cleaning composition for foam discharge container of the present invention is 1 to 15% by weight, preferably 3 to 10% by weight, based on the whole composition. If the blending amount is less than 1% by weight, the foaming reforming effect is not desired. If the blending amount exceeds 15% by weight, the viscosity increases by itself and the dischargeability deteriorates.

In the present invention, the component (D) is further represented by the general formula (4).
^{R 2a - (OR 2b) nGm} (4)
[Wherein, R ^2a is a linear alkyl group having 8 to 16 carbon atoms, and R ^2b is an alkylene group having 2 to 4 carbon atoms. G represents a glycoside group. n is an average number of added moles and represents a number of 0 to 5, and m is an average degree of condensation and represents a number of 1 to 3. ]

When the nonionic surfactant represented by is added, there is an effect of suppressing foaming at low temperature and improving foam quality in a creamy manner. In the general formula (4), R ^2a is a linear alkyl group having 8 to 16 carbon atoms, and a linear alkyl group having 10 to 14 carbon atoms is preferable. N is preferably 0 to 3, more preferably 0 to 2, and particularly preferably 0. R ^2b is an alkylene group having 2 to 4 carbon atoms, preferably an ethylene group. In the general formula (4), G is a group derived from a reducing sugar, and more specifically includes a glycoside group. The reducing sugar as a raw material may be either aldose or ketose, and examples thereof include triose, tetrose, pentose, and hexose having 3 to 6 carbon atoms. Specific examples of aldose include apiose, arabinose, galactose, glucose, lyxose, mannose, galose, aldose, idose, talose and xylose, and examples of ketose include fructose. In the present invention, among these, aldopentose or aldohexose having 5 or 6 carbon atoms is particularly preferred, and glucose is most preferred. In the general formula (4), m represents an average degree of condensation of sugars, preferably a number of 1 to 2, particularly a number of 1 to 1.5. The compounding amount of the component (D) in the hair detergent composition for foam discharge container of the present invention is 0.5 to 5% by weight, preferably 1 to 3% by weight, based on the entire composition. If the blending amount is less than 0.5% by weight, the effect of improving the foam quality is not desired, and if it exceeds 5% by weight, the viscosity is increased at a low temperature and the discharge property is deteriorated.

  In this invention, the component normally used for a washing | cleaning agent can further be contained suitably.

  Surfactants other than those limited above can be added as appropriate, regardless of whether they are anionic, amphoteric, nonionic or cationic as long as they do not thicken and do not affect low-temperature stability. It is. Among them, it is desirable to add a nonionic activator having a high solubilizing power, particularly when a fragrance or an oily substance is stably blended. In addition, glycerin and polyols having a moisturizing effect have a stimulating mitigating effect, and further have an effect of improving low-temperature stability. In addition, oils, silicones, humectants, colorants, preservatives, bactericides, fragrances, antioxidants, and the like can be appropriately contained.

  The hair cleaning composition for a foam discharge container of the present invention preferably has a pH of less than 6.5, and particularly preferably a pH of 4.5 or more and less than 6. In this region, the composition is mild to the scalp and can be suitably used as a cleaning agent. In the present invention, the pH is measured by diluting the composition 20 times with purified water and using a pH meter at 20 ° C.

  The pH of the composition is adjusted to the above range by an ordinary method using an organic acid or an inorganic acid. Examples of the organic acid include citric acid, succinic acid, lactic acid, malic acid, and the like. Particularly preferred is citric acid. Examples of the inorganic acid include hydrochloric acid, sulfuric acid, phosphoric acid and the like, and phosphoric acid is particularly preferable.

  Further, the hair cleaning composition for foam discharge container preferably has a viscosity at 10 ° C. of 30 mPa · s or less and a viscosity at 30 ° C. of 20 mPa · s. The viscosity is 10 ° C. or 30 ° C., and the rotor no. 1, measured at 60 rpm.

  Such a hair cleaning composition for foam discharge containers is filled in the foam discharge containers. The foam discharge container is not particularly limited as long as the detergent composition can be mixed with air and discharged in a foamed state. For example, a squeeze foamer type that presses and discharges the body of a soft container and a press pump A pump former type that discharges more can be used. Among them, those having a porous film body in the foaming mechanism are preferable, and a porous film body such as a sponge, a sintered body, or a net having a thickness of about 0.1 to 2 mm, through which the hair cleaning composition passes, is simply used. It can be provided in a layer or a plurality of layers, or in a plurality of places (for example, Japanese Patent Publication No. 52-16567, Japanese Utility Model Publication No. 58-17427, Japanese Utility Model Publication No. 3-7963, Japanese Utility Model Application Publication No. 6-32346, JP-A-7-215352, JP-A-9-118352, etc.). The mesh size of the porous membrane is preferably 50 to 500 mesh, particularly 150 to 400 mesh. Moreover, as a material of such a porous membrane, a plastic material such as nylon (registered trademark manufactured by DuPont), polyester, polyolefin, or the like is preferable. Further, it is desirable that the discharge amount of the container once is 0.5 mL or more, and further 1 mL or more is considered in consideration of ease of use.

  The hair cleaning composition for a foam discharge container of the present invention can discharge creamy foam without clogging even at a low temperature, and can obtain a firm foam that does not spill from the palm. In addition, good foam formation can be maintained even at low temperatures such as in winter. Moreover, it is a composition with little skin irritation, and due to such characteristics, it can be used safely and easily from an infant with poor foaming to an elderly person who needs care.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated more concretely, this invention is not restrict | limited to the following Example. In the following examples,% is mass%.

Examples 1-8, Comparative Examples 1-9
A hair cleaning agent for a foam discharge container having the composition shown in Table 1 was produced, and the low-temperature stability, the creaminess of the foam, and the rinse-in effect after rinsing / after drying were evaluated. The results are also shown in Table 1.

(Manufacturing method)
(D) component is disperse | distributed to purified water, and it heats at 80 degreeC. It cools after confirming that it melt | dissolved completely, mixes each component, and prepares the hair cleaning composition for foam discharge containers. This was filled into a pump former container (200 mesh, capacity 100 mL) made by Daiwa can to obtain a hair cleaning agent for foam discharge container.

(Evaluation method)
(1) Low temperature stability:
Each composition was filled in a transparent glass bottle container, and the appearance of the liquid after storage at −5 ° C. for 48 hours was visually confirmed.
A: Completely transparent.
○: Slightly cloudy but returns to room temperature when returned to room temperature.
Δ: White turbidity and starch is generated even when the temperature is returned to room temperature.
X: Cloudy and precipitates.

  Each composition is filled in a pump former container, left in a temperature-controlled room at 10 ° C for one day, and then the ease of pushing the pump at 10 ° C is sensorially evaluated by five expert panelists, and judged according to the following criteria: did.

○: Four or more people evaluated it as easy to push.
Δ: Evaluated that 2 to 3 people were easy to press.
X: Evaluated that 0 to 1 person was easy to press.

(2) Bubble creaminess during discharge:
Each composition is filled in a pump former container, and the discharged foam is collected in a 200 mL dedicated cup. A sample was set in a rheometer (CR-500DX-L II, manufactured by Sun Scientific Co., Ltd.), stress was applied to the sample at 2 cm / min, and the maximum value of the stress was measured. The elasticity per bubble was evaluated by calculating the stress per unit area from the maximum stress. The evaluation was an average value of N = 5.

(3) Rinsing effect:
1) Sensory evaluation-Evaluation method The hair of a Japanese woman was bleached to create damaged hair. 50 g (about 15-20 cm) of this hair was bundled, and each composition was filled in a pump former container (discharge amount of 1 push 0.5 mL), and washed with an amount of 1 push (0.5 mL). Next, the hair was rinsed with running water for 30 seconds, and the “smoothness” of the hair when it was running was subjected to sensory evaluation by five professional panelists, judged according to the following criteria, and the average value was calculated.

-Evaluation criteria 4: Very slipping 3: Slightly slipping 2: Not slipping very much 1: Smoothness of hair when rinsing not slipping

2) Evaluation by friction tester ・ Evaluation method <Evaluation during rinsing>
A test piece is made by attaching 50 hairs to a slide glass at intervals of 0.5 mm. Immerse in a 20-fold diluted shampoo solution for 1 minute, rinse with running water for 10 seconds, place wet on a friction tester (KES-SE: manufactured by Kato Tech Co., Ltd.), and average friction coefficient 1 minute after removal (Average deviation of friction coefficient μ, unit: dimensionless symbol; MMD) was measured (speed: 1 mm / sec. Load: 50 g friction sensor: piano wire). This value correlates with the smoothness of the hair surface, and the lower the value, the smoother the feel.

(Raw materials used)
A-1: Softazoline CL-R (manufactured by Kawaken Fine Chemicals Co., Ltd. (component content 30%))
Display name: Cocoamphoacetate Na, water
(3) / {(1) + (3)} = 0.5 Inorganic salt content 1%
A-2 ′: Softazoline CL (manufactured by Kawaken Fine Chemical Co., Ltd. (component content 36%))
Display name: Cocoamphoacetate Na, water
(3) / {(1) + (3)} = 0.5 Inorganic salt content 14%
A-3 ': Softazoline LHL-SF (manufactured by Kawaken Fine Chemicals Co., Ltd. (component content 27%))
Display name: Lauroamphoacetate Na, water
(3) / {(1) + (3)} = 0.8 Inorganic salt content 1%
A-4 ′: Softazoline CH (manufactured by Kawaken Fine Chemical Co., Ltd. (component content 30%))
Display name: Cocoamphoacetate Na, water
(3) / {(1) + (3)} = 1.0 Inorganic salt content 8%
A-5 ′: Softazoline CH—R (manufactured by Kawaken Fine Chemicals Co., Ltd. (component content 30%))
(3) / {(1) + (3)} = 1.0 Inorganic salt content 1%
B-1: Katchinal LC-100 (manufactured by Toho Chemical Co., Ltd.) molecular weight 400,000, N content 1.0%
Display name: Polyquaternium-10
B-2: Katchinal LC-200 (manufactured by Toho Chemical Industry Co., Ltd.) molecular weight 1.5 million, N content 1.2%
Display name: Polyquaternium-10
B-3: Poise C-60H (manufactured by Kao Corporation) Molecular weight 600,000, N content 2.2%
Display name: Polyquaternium-10
B-4 ′: HEC Daicel SE850 (manufactured by Daicel Corporation)
Display name: Carboxyethyl cellulose C-1: Amisoft CK-22 (Ajinomoto Co., Inc. (component content: 28.8%))
Display name: Cocoyl glutamic acid K, water C-2: Alanon ALE (manufactured by Kawaken Fine Chemicals Co., Ltd. (component content 30%))
Display name: Lauroylmethylalanine Na, water C-3: Soypon SLE (manufactured by Kawaken Fine Chemicals Co., Ltd. (component content 30%))
Display name: Lauroyl sarcosine Na, water C-4 ′: EMAL 20C (manufactured by Kao Corporation (component content 25%))
Display name: Laureth sulfate Na, water D-1: Mydoll 10 (manufactured by Kao Corporation (component content 40%))
Display name: decyl glucoside, water The compounds (1) and (2) were quantified by liquid chromatography using a conventional method.

  From the results shown in Table 1, all the hair cleaning agents for foam discharge containers of the present invention obtained creamy and stable foam, good low-temperature stability, and a sufficient rinse-in effect could be confirmed.

  The hair cleanser composition of the present invention does not clog the foam discharge container even at low temperatures, can discharge creamy foam, and can maintain good foam formation even at low temperatures such as in winter. Since it can be used, it is most suitable as a hair cleaning agent for foam discharge containers.

Claims (3)

(A) General formula (1)

[However, in the formula, R ¹ CO represents an acyl group having 8 to 18 carbon atoms, and R ² and R ³ each independently represents a hydrogen atom or a general formula (2)

[Wherein, m represents an integer of 1 to 3, and M is a counter containing a hydrogen atom]
And R ² and R ³ do not simultaneously become a hydrogen atom. ]
An amidoamine type amphoteric surfactant represented by
General formula (3)

[Wherein R ¹ , m and M are the same as described above. ]
An amphoteric surfactant characterized in that the weight ratio of (3) / {(1) + (3)} is 0.7 or less: 3 to 25% by weight,
(B) Cationic cellulose having a molecular weight of 400,000 to 1,500,000 and a cationic nitrogen content of 1 to 2.5% (mass%): 0.3 to 0.8% by weight,
And a remaining amount of water, a hair cleaning composition for a foam discharge container having an inorganic salt content of 1.0% by weight or less and a viscosity at 10 ° C. of 30 mPa · s or less. The hair cleansing composition for a foam discharge container according to claim 1, further comprising (C) 1 to 15% by weight of an N-acylamino acid type anionic surfactant. Furthermore, (D) General formula (4)
^{R 2a - (OR 2b) nGm} (4)
[Wherein, R ^2a is a linear alkyl group having 8 to 16 carbon atoms, and R ^2b is an alkylene group having 2 to 4 carbon atoms. G represents a glycoside group. n is an average number of added moles and represents a number of 0 to 5, and m is an average degree of condensation and represents a number of 1 to 3. ]
The hair-cleaning composition for foam discharge containers of Claim 1 or 2 containing 0.5-5 mass% of nonionic surfactant represented by these.