JP3472402B2 - Hair cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hair cosmetic composition containing a silicone compound, and more particularly to a pump spray type hair cosmetic composition having a low viscosity, a high emulsion stability, an excellent feeling of use, and a high safety.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Silicone compounds are used in many hair cosmetics because they impart gloss to the hair and give it a smooth and silky feel, but since they are insoluble in water, they are dissolved in a solvent or emulsified with a surfactant. It takes the form

However, the one using a solvent is not preferable in terms of feel because the oil is strongly sticky. In addition, since the emulsified product is kept in stability, it is made into a gel or a large amount of an oil agent or a high molecular compound is added to increase the viscosity, so that the elongation during application is poor and it is difficult to spread uniformly. Furthermore, considering the convenience of operation, it is more preferable to directly spray the hair in the form of a spray or a mist, rather than picking up a sticky or sticky one on the hand and applying it to the hair. Those with low viscosity have a problem of poor stability.

Those diluted with a solvent or those with low stability are
Although a spray type can be added by adding a propellant such as LP gas, the aerosol type spray has problems such as safety, environment, and difficulty in disposal because it is filled with gas at a high pressure.
Further, when the pump spray type hair mist is diluted with a solvent such as alcohol, the hair becomes hard due to the astringent action and it is not preferable in terms of feeling, and further, there is a problem in safety in a product form in which it has a low flash point and is atomized. Further, a low-viscosity emulsion using water does not have sufficient stability.

Therefore, there has been a demand for a safe hair cosmetic containing a silicone compound, having a low viscosity and being stable and having a high flash point.

[0006]

Under such circumstances, the present inventors have conducted diligent research and as a result, as a result, mixed silicones and a nonionic surfactant having an appropriate HLB are contained in an appropriate ratio and an organic solvent is added. By controlling the viscosity to less than 10% and adjusting the viscosity at 20 ° C. to 30 cp or less, an emulsion-type hair cosmetic composition that is stable, has an excellent feeling in use, and is highly safe and that can be used in a pump spray container is obtained. Therefore, the present invention has been completed.

That is, the present invention provides the following components (A) to
(F); (A) Dimethylpolysiloxane having a degree of polymerization of 1000 to 20000, (B) Dimethylpolysiloxane having a degree of polymerization of 30 to 250, (C) Nonionic surfactant having a HLB of 6 to 12, (D) HLB of 15 to 18 A nonionic surfactant, (E) containing 0% by weight or more and less than 10% by weight of ethanol , (F) water, (B) / (A) = 0.5 to 10,
(D) / (C) = 0.5 to 8, [(A) + (B)] /
[(C) + (D)] = 3 to 30 and to provide a pump spray type hair cosmetic composition having a viscosity at 20 ° C. of 30 cp or less.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The dimethylpolysiloxane as the component (A) used in the present invention has the following general formula (1):

[0009]

[Chemical 1]

A high-molecular-weight silicone represented by the formula (n represents the degree of polymerization), wherein the degree of polymerization n is 1000 to 2000.
0, preferably 1000 to 3000.

The dimethylpolysiloxane of the component (B) used in the present invention is a silicone represented by the above general formula (1) and has a degree of polymerization n of 30 to 250, preferably 80 to 1.
50.

HLB6 as the component (C) used in the present invention
Although the nonionic surfactants Nos. To 12 are not particularly limited, examples thereof include fatty acid ester type nonionic surfactants and polyoxyalkylene type nonionic surfactants. As the fatty acid ester type nonionic surfactant, ethylene glycol, propylene glycol, 1,4-butylene glycol, 1,3-butylene glycol, glycerin, pentaerythritol, sorbitol, sorbitan, polyhydric alcohol such as sucrose and lauric acid, Examples thereof include esters with fatty acids such as myristic acid, palmitic acid, stearic acid, and oleic acid. The polyoxyalkylene type nonionic surfactant is a nonionic surfactant having a polyoxyalkylene chain in the molecule, and as the oxyalkylene group constituting the polyoxyalkylene chain, oxyethylene, oxypropylene, and a combination thereof can be used. Can be mentioned. Preferred is an oxyethylene group. The content of the polyoxyalkylene chain in the molecule and the type and composition of the oxyalkylene group can be variously changed within the range of HLB 6 to 12, preferably 8 to 10 of the surfactant depending on the required HLB. Further, as preferable ones of the polyoxyalkylene type nonionic surfactant,
Examples thereof include polyoxyethylene alkyl ether and polyoxyethylene alkyl phenyl ether.

The HLB determination method is as follows:
Although the law of law, the law of Kawakami, etc. are known, H in the present invention
The LB value is, for example, Griffi (Griffi) described in "Surfactant Handbook", page 307, published by Sangyo Tosho Co., Ltd.
n) The value calculated by Mr.'s method.

Specific examples of the component (C) HLB6-12 nonionic surfactant include sorbitan lauric acid monoester, sorbitan palmitic acid monoester, polyoxyethylene (4) sorbitan stearic acid monoester, and polyethylene glycol ( 200) oleic acid monoester, polyethylene glycol (400) lauric acid diester, polyoxyethylene (4) lauryl ether, polyoxyethylene (4) octyl phenyl ether, and the like. Of these, polyoxyethylene (4) lauryl ether Is preferred. HL of component (C)
The nonionic surfactants B6 to B12 may be used alone or in combination of two or more.

Component (D) HLB1 used in the present invention
The nonionic surfactants 5 to 18 are not particularly limited, and examples thereof include those similar to the above-mentioned component (C).
Those of 16 to 17 are preferable. HLB15 of component (D)
Specific examples of the nonionic surfactants Nos. 18 to 18 include polyoxyethylene (20) sorbitan palmitic acid monoester, polyethylene glycol (1000) lauric acid monoester, polyethylene glycol (1540) lauric acid diester, and polyoxyethylene (23 ) Lauryl ether and polyoxyethylene (20) nonylphenyl ether are mentioned, and of these, polyoxyethylene (23) lauryl ether is preferable. The nonionic surfactants of HLB15 to 18 of the component (D) may be used alone or in combination of two or more.

The organic solvent of the component (E) used in the present invention is not particularly limited, and polyhydric compounds such as ethanol, 1-propanol, 2-propanol; 1,3-butylene glycol, propylene glycol, glycerin, diethylene glycol and the like. Examples thereof include flammable substances such as alcohol, of which ethanol is preferable. Further, the content of the component (E) in the hair cosmetic composition is preferably less than 10% by weight (hereinafter simply referred to as "%"), particularly 1 to 5% because safety is high and emulsion stability is not impaired.

The water of the component (F) used in the present invention is
Like the component (E), it is used as a solvent for the components (A) to (D), and its content is preferably 70 to 95% in the hair cosmetic composition, and the component (E) and the component (F) are mixed. The percentage is
It is preferable that (E) / (F) is 0.01 to 0.14 from the viewpoint of feeling in use and emulsion stability.

In the hair cosmetic composition of the present invention, it is necessary to use the components (A) and (B) in combination in order to make the hair smooth and dry. The mixing ratio of the component (A) and the component (B) is such that (B) / (A) is 0.5 to 10, and particularly 2 to 5. In addition, (C) component and (D)
It is necessary to use the components in combination in order to stably emulsify the silicone, and the mixing ratio of the (C) component and the (D) component is such that (D) / (C) is 0.5 to 8, particularly 1 It is preferable to be 2 to [(A) + (B)] / [(C) +
It is preferable that (D)] is 3 to 30, especially 5 to 15 because it keeps the viscosity low and stable. Further, the total amount of the components (A) to (D) is 0.5 to 15%, especially 3 to 6 in the hair cosmetic composition.
% Is preferred because it is not sticky and gives a good feel.

The hair cosmetic composition of the present invention has a viscosity of 30 cp or less at 20 ° C., and preferably 10 cp or less for use in a pump spray system. Viscosity measurement method, "Japanese Cosmetic Standards Edition 2nd Edition Note" edited by Japan Official Book Association,
It can be shown by a method according to the second method of the viscosity measurement method of the general test method, and specifically, a B-type viscometer (manufactured by Tokyo Keiki Co.) and B
L adapter (60 rpm) can be mentioned.

In the hair cosmetic composition of the present invention, the pH is not particularly limited, but it is preferably pH 4 to 6. Examples of pH adjusters include hydrochloric acid, phosphoric acid, lactic acid, citric acid and the like.

From the viewpoint of safety, the hair cosmetic composition of the present invention preferably has a flash point of 45 ° C. or higher.
It may be appropriately adjusted by the water content of the component (F).

The method for producing the hair cosmetic composition of the present invention is not particularly limited and may be carried out according to a conventional method.

In addition to the above-mentioned essential components, the hair cosmetic composition of the present invention also includes components used in ordinary cosmetic compositions such as dimethyl silicone, cyclic silicone, methylphenyl silicone, polyether modified silicone, trimethylsiloxysilicic acid. , Isoparaffin, betaines such as glycine and betaine, glycerides such as castor oil, cocoa oil, mink oil, avocado oil and olive oil; cetyl alcohol, oleyl alcohol, hexadecyl alcohol, lauryl alcohol, stearyl alcohol, isostearyl alcohol, 2 Higher alcohols such as octyldodecanol; polyhydric alcohols such as propylene glycol, polypropylene glycol, glycerin; isopropyl myristate, hexyl laurate, cetyl lactate,
Esters such as propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate and octyldodecyl myristate; higher alcohols such as polyoxyethylene ethyl ether, polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene stearyl ether Propylene oxide ethylene oxide adducts; cationic surfactants such as dialkyldimethylammonium chloride, distearyldimethylammonium chloride, lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride; polyvinylpyrrolidone-based, vinyl acetate-based, acetic acid Polymer compounds such as acrylic and amphoteric acrylics; other fragrances and pigments; para-aminobenzoic acid derivatives, salicy It can be appropriately compounded in an amount not to adversely affect antioxidant present invention; acid derivatives, methoxycinnamic acid derivatives, ultraviolet absorbers such as benzophenone derivatives; preservatives such as paraben.

In addition, a cationic surfactant such as a quaternary ammonium salt such as cetyltrimethylammonium salt or stearyltrimethylammonium salt, particularly stearyltrimethylammonium chloride salt, is added to the nonionic surfactant essential for the hair cosmetic composition of the present invention. In hair cosmetics, 0.05-0.
By adding 5%, a more stable product can be obtained. Further, those containing no anionic surfactant are preferable from the viewpoint of stability.

The hair cosmetic composition of the present invention is preferably a hair spray. Particularly, since it is low in viscosity, excellent in stability and safe, it is preferable to use a pump spray type which is easy to use.

[0026]

EFFECTS OF THE INVENTION The hair cosmetic composition of the present invention is stable even if the viscosity is low, and has a high flash point and is safe. In addition, when used as a pump spray type, it can be applied directly to the hair and does not stain hands or the like.

[0027]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Example 1 Hair cosmetics (pump spray type) having the compositions shown in Tables 1 to 3 were produced by a conventional method, and the stability and the feel when used were evaluated. The results are shown in Tables 1 to 3.

(Evaluation Method) (1) Stability The compounding compositions shown in Tables 1 to 3 were put in a 100 ml transparent glass bottle with a lid, sealed, and then left to stand in a thermostat at 50 ° C. The dispersed state of was observed and evaluated according to the following criteria. ◯: No change for 30 days or more. Δ: Separation occurred within 10 days. X: Separation occurred within 3 days.

(2) Feeling (moisturization, dryness, smoothness): Each hair cosmetic composition is sprayed onto a hair bundle having a length of 18 cm, a width of 5 cm and a weight of 20 g, and after naturally drying, the hair cosmetic composition is applied. The comparison with the untreated hair bundle (control) was sensory-evaluated by a professional female panel based on the following criteria. 5: Very good compared to the control. 4: Slightly better than the control. 3: Equivalent to control. 2: Worse than the control. 1: Very bad compared to the control.

[0031]

[Table 1]

[0032]

[Table 2]

[0033]

[Table 3]

[0034] Note 1) HLB = 9.7 Note 2) HLB = 16.9 Note 3) HLB = 14.1

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Koichi Kuni America 2-1-3 Fumika, Sumida-ku, Tokyo Inside Kao Co., Ltd. (56) Reference JP-A-7-53331 (JP, A) JP-A 4-36222 (JP, A) JP-A-1-139522 (JP, A) JP-A-6-87725 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K 7/06 -7/155

Claims (6)

(57) [Claims] 1. The following components (A) to (F); (A) dimethylpolysiloxane having a degree of polymerization of 1000 to 20000, (B) dimethylpolysiloxane having a degree of polymerization of 30 to 250, and (C) non-containing HLB 6 to 12. (B) / (A) = 0, containing ionic surfactant, (D) nonionic surfactant of HLB 15 to 18, (E) 0% by weight or more and less than 10% by weight of ethanol, (F) water .5-10, (D) /
(C) = 0.5 to 8, [(A) + (B)] / [(C) +
(D)] = 3 to 30, and the viscosity at 20 ° C. is 30.
Pump spray type hair cosmetics of cp or less. 2. The hair cosmetic composition according to claim 1, which has a pH of 4 to 6. 3. The hair cosmetic composition according to claim 1, which has a flash point of 45 ° C. or higher. 4. The hair cosmetic composition according to claim 1, which has a viscosity at 20 ° C. of 10 cp or less. 5. The nonionic surfactant as the component (C) and the component (D) is polyoxyethylene alkyl ether or polyoxyethylene alkylphenyl ether.
The hair cosmetic composition according to any one of claims 1 to 4. During wherein (A) ~ (D) total amount hair cosmetic ingredients, the hair cosmetic composition of any one of claims 1 to 5 0.5 to 15 wt%.