JP3276646B2 - Cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to shampoo compositions and, more particularly, to a shampoo composition containing a specific anionic surfactant, a water-insoluble silicone derivative, a pearl pigment and water, having an excellent pearl luster, and The present invention relates to a shampoo composition capable of imparting natural luster to a shampoo composition.

[0002]

2. Description of the Related Art
In order to improve the aesthetics of cosmetics, pearly luster has been provided. Generally, the substance added for this purpose is called a pearling agent, and pearl pigments and polyhydric alcohol fatty acid esters are known.

Among these, pearl pigments have a surface in a state like a stack of thin layers and emit pearl luster by reflection and interference of light with respect to the thin layers.
Bismuth oxychloride, mica titanium, mica, phlogopite, gold leaf powder and the like have long been used in cosmetics as pearl luster imparting agents. However, when these are used for water-dispersed cosmetics, they have the drawback that they are easily aggregated and settle because of their high specific gravity. Therefore, their use has been generally limited to solid cosmetics such as lipstick, paste cosmetics such as nail polish, and powdery cosmetics such as powders.

[0004] On the other hand, various studies have been made on the use of pearl pigments in compositions containing a large amount of a surfactant, such as water-dispersed cosmetics, but it is satisfactory to simply mix them. Dispersion stability is not obtained, and sedimentation and floating separation often occur when left standing.

Therefore, conventionally, in order to stably disperse the pearl pigment in the aqueous dispersion system, (1) the particle diameter of the pearl pigment is reduced as much as possible, (2) the density of the dispersion medium and the inorganic pearl pigment are made the same, 3) Increase the viscosity of the system to prevent the flow, sedimentation, and floating of the pearl pigment. (4) Coat the surface of the pearl pigment with a metal such as titanium to prevent aggregation between the pearl pigments in the system. Means are taken. But,
In the method (1), there is a limit depending on the substance, and in some cases, the original properties of the pearl pigment may be lost. In addition, ultrafine particles increase the surface area and increase the surface energy, so that aggregation between pearl pigments is promoted, and the dispersibility is rather deteriorated. The method of (2) is also
Effectiveness is limited by the intrinsic value of the substance. Further, when the viscosity is increased by the method (3), there is a problem in use as a cosmetic. In addition, the method (4) does not essentially prevent aggregation, but aggregates over time.

In order to solve these drawbacks, polyacrylic acid, a metal salt thereof, a neutralized salt of an organic alkali or a water-soluble polymer such as xanthan gum is added to impart thixotropic properties, or a vinyl or cellulose polymer is added. Although a method of forming a protective colloid by addition is taken, in a concentrated surfactant system in which a strong electrolyte such as sodium and potassium coexists, the polymer shrinks,
The thixotropic property and the ability to form a protective colloid are lost, and a stable cosmetic composition cannot be obtained. Further, usable polymers are limited to those having good compatibility with the surfactant.

[0007] Therefore, there are few examples in which pearl pigments are used in water-dispersed cosmetics. Instead of pearl pigments, ethylene glycol diesters or fatty acid alkylolamides having relatively low specific gravity and excellent preparation stability are used. However, these have problems such as inferior gloss imparting effect due to lower refractive index as compared with inorganic pearl pigments, poor thermal stability, and no effect of improving gloss.

[0008] Accordingly, there has been a demand for the development of a water-dispersed shampoo composition which itself has an excellent aesthetic pearl luster and imparts a natural luster.

[0009]

Under such circumstances, the present inventors have conducted intensive studies, and as a result, it has been found that a specific anionic surfactant and a water-insoluble silicone derivative are used in combination, and that a pearl pigment is dispersed therein. , The pearl pigment is uniformly dispersed in the water dispersion system, does not cause aggregation and sedimentation, exhibits excellent pearl luster, and imparts natural luster by a synergistic effect of the pearl pigment and the water-insoluble silicone derivative. The present invention was completed.

That is, the present invention provides the following component (A):
(B), (C) and (D): (A) an anionic surfactant selected from polyoxyethylene alkyl sulfates, alkyl sulfates and N-acyl amino acid type surfactants, (B) a water-insoluble silicone derivative, A shampoo composition containing (C) a pearl pigment, (D) water, and free of glucose and a fatty acid ester of an alkyl glucoside having 1 to 4 carbon atoms, and a method for producing the same.

The anionic surfactant of the component (A) in the present invention is an anionic surfactant shown below, and can be used alone or in combination of two or more.

[0012]

[0013]

[0014]

Anionic surfactants: (a) having a linear or branched alkyl or alkenyl group having an average of 10 to 20 carbon atoms, and having an average of 0.5 to 5 per molecule;
8 moles of ethylene dioxide, propylene oxide, butylene oxide, ethylene oxide and propylene oxide in a ratio of 0.1 / 9.9 to 9.9 / 0.1, or ethylene oxide and butylene oxide of 0.1 / 9 Alkyl or alkenyl ether sulfates added at a ratio of 9.9 to 9.9 / 0.1. (B) An alkyl or alkenyl sulfate having an alkyl or alkenyl group having an average of 10 to 20 carbon atoms. (C) An N-acylamino acid type surfactant having an acyl group having 8 to 24 carbon atoms and a free carboxylic acid residue.

Amphoteric surfactants: (n) imidazoline-based amphoteric surfactants of α-addition type, secondary amide type or tertiary amide type having an alkyl group, alkenyl group or acyl group having 8 to 24 carbon atoms. (O) a carbobetaine, an amidobetaine, a sulfobetaine, a hydroxysulfobetaine having an alkyl group, an alkenyl group or an acyl group having 8 to 24 carbon atoms;
Or an amide sulfobetaine-based amphoteric surfactant.

[0017]

[0018]

The anionic surfactant of the component (A) is preferably incorporated in the shampoo composition of the present invention in a total amount of 1 to 60% by weight (hereinafter simply indicated as%).

The water-insoluble silicone derivative (B) used in the present invention has a viscosity at 25 ° C. of 5 cs.
Above, more preferably 5000 cs or more, especially 1000 cs or more. The following are examples of such water-insoluble silicone derivatives.

(A) Dimethylpolysiloxane (CH ₃ ) ₃ SiO [(CH ₃ ) ₂ SiO] _n1 Si (CH ₃ ) ₃ (3) represented by the formula (3) (where n1 is an integer of 3 or more) shown) as di-methyl polysiloxane represented by the general formula (3), for example, it may be used such as those available under the trade name KF96 from Shin-Etsu chemical Co., Ltd..

(B) Methylphenylpolysiloxane represented by the formula (4)

[0023]

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(Where a, b and c represent numbers whose sum is 1 or more. However, when b is 0, c is not 0, and when c is 0, b is not 0) Methylphenylpolysiloxane represented by the formula (4) is also widely known, and for example, those marketed by Shin-Etsu Chemical under the trade name of KF50 or the like can be used.

(C) Amino-modified silicone (R ′ _d ) (A _3-d ) SiO— [Si (A ₂ ) O] _n2 — [Si (A _e ) ( R ′ ₂ ) _{-e) O] n3 -Si (R} 'd) (A 3-d) (5) wherein, A is a hydrogen atom, a phenyl group, a hydroxyl group, C 1 -C
And d is an integer of 0 to 3 , e is 0 or 1, and n2 is 0 to 19
Represents an integer of 99 , n3 represents an integer of 1 to 2000,
n2 + n3 represents an integer of 1 to 2000, and R 'represents a group -C
shows the _f H _2f L. [Where f is an integer of 2 to 8,
L is the formula

[0026]

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(Wherein, Z is selected from the group consisting of a hydrogen atom, a phenyl group, a benzyl group, and an alkyl group having 1 to 20 carbon atoms, and B ⁻ represents Cl ⁻ , Br ⁻ , I ⁻ or F ⁻ ) The amino-modified silicone represented by the general formula (5) is selected from Toray Silicone Co., Ltd.
More commercially available under trade names such as SF8417 and DC536, and aminoalkyl silicone emulsion SM8702C
(Manufactured by Toray Silicone Co., Ltd.) can be used.

(D) Fatty acid-modified polysiloxane represented by the formula (6)

[0029]

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[In the formula (6), g, h and i are 1 to 350
J is a number from 0 to 10; ⁸Has 9 to 2 carbon atoms
Represents an alkyl group of 1)

(E) Alcohol-modified silicone represented by the formula (7-a) or (7-b)

[0032]

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Wherein k and l each represent a number of 1 to 500 (preferably 1 to 200), and R ⁹ is C _n4 H _2n (n4 is 0 to 4).
Indicates the number))

(F) Aliphatic alcohol-modified silicone represented by the formula (8)

[0035]

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[In the formula (8), m, o and q have a total of 1 to 300, r represents a number of 0 to 5, and R ¹⁰
_Represents C _n5 H _{2n5 + 1} (n5 represents a number of 4 to 22)]

(G) Polyether-modified silicone represented by the formula (9-a) or (9-b)

[0038]

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[In the formula (9-a), s is a number from 0 to 35;
Represents a number of 1 to 45, v represents a number of 0 to 400, and R ¹¹ represents C
_n6 H _{2n6 + 1} (n6 is a number from 1 to 4)]

[0040]

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[In the formula (9-b), w is a number of 2 to 110 (preferably 20 to 80), and x is 1 to 50 (preferably 3
To 30), y is a number of 0 to 50 (preferably 5 to 30), z is a number of 0 to 50 (preferably 0 to 35),
D is an alkyl group having 1 to 12 carbon atoms or the formula OC _n7 H _{2n7 + 1} (n
7 represents a group represented by the general formula (9-
Silicone ether copolymers represented by a) and (9-b) are also widely known, for example, from Shin-Etsu Chemical Co., Ltd.
It is commercially available under trade names such as KF351 and KF352, and these can be used.

(H) Epoxy-modified silicone represented by the formula (10)

[0043]

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[In the formula (10), α is a number of 1 to 500 (preferably 1 to 250), and β is 1 to 50 (preferably 1 to 250).
30), and R ¹² represents an alkylene group having 1 to 3 carbon atoms]

(I) Fluorine-modified silicone represented by the formula (11)

[0046]

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[In the formula (11), γ represents a number of 1 to 400 (preferably 1 to 250)]

(N) Cyclic silicone represented by the formula (12)

[0049]

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[In the formula (12), δ represents a number of 3 to 8,
R ¹³ represents an alkyl group having 1 to 3 carbon atoms]

(L) Formula (13-a) or (13-a)
Alkyl-modified silicone represented by b)

[0052]

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[In the formula (13-a), ε and η are each 1 to 5
R ¹⁴ is an alkyl group having 2 to 18 carbon atoms, R ¹⁵ is C _n8 H _2n8 (n8 is 0 to 200)
4)]

[0054]

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[In the formula (13-b), θ and κ are each 1 to 5
00 (preferably 1 to 200), and R ¹⁶ represents an alkyl group having 10 to ¹⁶ carbon atoms.]

[0056] These water-insoluble silicone derivatives, using either, but can be sufficiently exhibit the effect of the present invention, from the viewpoint of obtaining elasticity luster and hair, the strained feeling like, (b) di-methyl Polysiloxane, (c) amino-modified silicone, (g) polyether-modified silicone,
It is preferable to use (u) a cyclic silicone, and it is particularly preferable to use (c) an amino-modified silicone and (g) a polyether-modified silicone in combination.

[0057] The (b) n1 in the formula (3) in di-methyl polysiloxane in accordance with the finish feeling 3-9000
You can choose up to 10 but to get a light finish
About 0 to 1000 , and 2,000 or more, especially 4000 to 1000 in order to sufficiently impart a firmness and firmness to the hair.
About 7000 is preferable. The (c) amino-modified silicone of the formula (5) was d = 0, e = 1, f = 3, A is and a hydroxyl group and a methyl group, L is -NHCH ₂ CH ₂ NH
_2, that is, those represented by the name of amodimethicone in the US CTFA dictionary are particularly preferably used.

In the present invention, these water-insoluble silicone derivatives of the component (B) can be used alone or in combination of two or more, and the shampoo composition of the present invention has a total amount of 0.01 to 10%, more preferably 0.01 to 10%. Is 0.5 to 8%, especially 1 to
It is preferred to be blended in the range of 5%.

The pearl pigment of the component (C) used in the present invention is not particularly limited as long as it is generally used in the field of cosmetics. For example, titanium mica (FLAMENCO SUPE
R PEARL: manufactured by Marl Corporation), fish scale foil, bismuth oxychloride, mica, phlogopite, gold leaf powder and the like. These pearl pigments have various shapes such as a plate shape and a spherical shape, and their maximum particle size is 2 to 100 μm, especially 5 to 100 μm.
６０60 μm is preferred.

In the present invention, these pearl pigments of the component (C) can be used alone or in combination of two or more, and the shampoo composition of the present invention has a total amount of 0.01%.
It is preferable that the compounding amount is in the range of from 3.0 to 3.0%, particularly from 0.1 to 2.0%.

Further, water as the component (D) in the present invention is an essential component for forming an aqueous dispersion, and is preferably incorporated in the shampoo composition of the present invention in a total range of 30 to 95%. .

In the shampoo composition of the present invention, first, the pearl pigment of the component (C) is dispersed in the high molecular silicone of the component (B), and then this is dispersed in the polyoxyethylene alkyl sulfate and the alkyl sulfate of the component (A). It is manufactured by mixing a salt and an anionic surfactant selected from N-acylamino acid type surfactants and water of the component (D) and adding the resulting mixture to an aqueous dispersion obtained.

The shampoo composition of the present invention may contain, if necessary, components usually used in cosmetics, pharmaceuticals, foods, etc., for example, anti-dandruff agents, bactericides, efficacious agents such as vitamins;
Preservatives such as parabens; thickeners such as perfluoropolyethers and water-soluble polymers; coloring agents such as dyes and pigments; conditioning agents such as cationic polymers; polymers for hair setting such as acrylic resin liquids; Other ENCYCLOPEDIA OF CONDITIONOING
RINSE INGREDIENTS (MICELLE PRESS, 1987)] can be appropriately blended as long as the effects of the present invention are not impaired.

[0064]

The shampoo composition of the present invention has an excellent pearl luster and a synergistic effect with a water-insoluble silicone derivative because the pearl pigment is uniformly dispersed in the aqueous dispersion and does not cause aggregation and sedimentation. Can give a more natural gloss.

[0065]

The present invention will be further described with reference to the following examples. Example 1 A shampoo composition having the composition shown in Table 1 was prepared by the following production methods, and the pearl gloss, the aggregation prevention effect of the pearl pigment, the sedimentation prevention effect of the pearl pigment, and the effect of improving the hair gloss were respectively obtained by the following methods. Was evaluated. Table 1 shows the results.

(Preparation method) Titanium mica or fish scale foil was added to silicone and dispersed, and this was added to an aqueous dispersion obtained by mixing the remaining components, followed by uniform mixing.

(Evaluation Method) (1) Pearl Gloss A sample was placed in a transparent glass container of 100 ml and sealed.
After storage at 20 ° C. for 20 days, evaluation was made by visual judgment according to the following criteria. ：: Good pearl luster is observed. Δ: Pearl luster is observed. ×: Very slight pearl luster is observed.

(2) Aggregation Prevention Effect of Pearl Pigment A 100 ml sample was placed in a transparent glass container and sealed.
After storage at 20 ° C. for 20 days, the sample was observed with an optical microscope and evaluated according to the following criteria. ：: Almost no aggregation was observed. Δ: Some aggregation was observed. ×: Mostly agglomerated.

(3) Sedimentation Prevention Effect of Pearl Pigment A 100 ml sample was placed in a transparent glass container, and sealed.
After storage at 20 ° C. for 20 days, evaluation was made by visual judgment according to the following criteria. ：: Similar to the untested product, the pearl luster is uniformly observed. B: Slightly less pearly luster was observed at the top compared to the untested product. ×: Compared with the untested product, the pearl luster was concentrated on the lower part, and hardly observed on the upper part.

(4) Effect of Improving Hair Gloss A hair bundle of 20 cm of human hair treated with a hair cosmetic within the scope of the present invention was subjected to visual sensory evaluation of hair gloss by 10 expert panelists according to the following criteria. Was. ：: An improvement in gloss is observed as compared with untested hair of the same origin. Δ: Slight improvement in gloss compared to untested hair of the same origin. ×: No improvement in gloss is observed as in untested hair of the same origin.

[0071]

[Table 1]

[0072]

[0073]

[0074]

[0075]

[0076]

[0077]

Continuation of the front page (56) References JP-A-1-294615 (JP, A) JP-A-2-265207 (JP, A) JP-A-58-124713 (JP, A) JP-A-4-29913 (JP) JP-A-4-173721 (JP, A) JP-A-3-188016 (JP, A) JP-A-60-38309 (JP, A) JP-A-2-160712 (JP, A) 3-184906 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (2)

(57) [Claims] 1. The following components (A), (B), (C) and (D): (A) anions selected from polyoxyethylene alkyl sulfates, alkyl sulfates and N-acyl amino acid type surfactants A shampoo composition containing a surfactant, (B) a water-insoluble silicone derivative, (C) a pearl pigment, (D) water, and not containing glucose and a fatty acid ester of an alkyl glucoside having 1 to 4 carbon atoms. 2. A dispersion of a pearl pigment (C) dispersed in a water-insoluble silicone derivative (B) is selected from (A) polyoxyethylene alkyl sulfates, alkyl sulfates and N-acyl amino acid type surfactants. The method for producing a shampoo composition according to claim 1, wherein the shampoo composition is added to an aqueous dispersion obtained by mixing an anionic surfactant and (D) water.