JPH07215825A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic imparting gloss and flexible feeling to hair and excellent in an effect of stretching vicious hair. CONSTITUTION:An organic silicone resin having the general formula RnSiO(4-n)/2 (R is a 1-6C hydrocarbon group or phenyl; (n) is a value between 0.1 and 1.8.) as an average constituent unit and a polyvinyl pyrrolidone-vinyl acetate copolymer having 7/3-3/7 copolymerization ratio are blended to obtain the objective cosmetic.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic composition which imparts excellent luster and smooth feel to the hair and has an excellent flat hair extension effect.

[0002]

2. Description of the Related Art Conventional hair cosmetics contain an oil component such as silicone oil, ester oil or hydrocarbon oil for the purpose of imparting luster and smoothness to the hair and extending the curly hair. , Solubilized, emulsified or dissolved before use. Of these, silicone oil in particular has a low surface tension, is excellent in familiarity with hair, and has good gloss,
It has been widely used in recent years. However, there is a limit to the oil content, and there is a drawback that the hair becomes greasy when used in large amounts or used by consumers for a long time. Further, although a cationic surfactant is often used for the purpose of imparting smoothness, it has a drawback that it does not give a desired gloss and a large amount of it is unfavorable for safety.

[0003]

[Means for Solving the Problems] In order to solve these drawbacks, the present invention provides a hair cosmetic composition which imparts excellent luster to the hair, imparts a smooth feel, and has an effect of spreading the curly hair. As a result of earnest research, it was found that the above object can be achieved by containing a specific organic silicone resin and a polyvinylpyrrolidone polymer.
The present invention has been completed based on this finding.

That is, the present invention has the general formula: R _n SiO _{(4-n) / 2}
(In the formula, R represents a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group, and n represents a value of 1.0 to 1.8.) An organic silicone resin having an average constitutional unit or A hair cosmetic comprising two or more kinds and a polyvinylpyrrolidone-vinyl acetate copolymer having a copolymerization ratio of polyvinylpyrrolidone / vinyl acetate of 7/3 to 3/7. The polyvinylpyrrolidone-based polymer used in the present invention is the same as Japanese Patent Application No. 5-3 filed previously by the applicant of the present application.
It is similar to that used in No. 14115.

The structure of the present invention will be described below. The organic silicone resin used in the present invention is an R ₃ SiO _1/2 unit,
It consists of an appropriate combination of R ₂ SiO units, RSiO _3/2 units, and SiO ₂ units, and the ratio of the average constitutional units is represented by the general formula: R _n SiO _{(4-n) / 2} (wherein R is Has 1 to 6 carbon atoms
Represents a hydrocarbon group or a phenyl group, and n is 1.0 to
Represents a value of 1.8. ) Is selected. When R is more than 6 carbon atoms, the coating becomes too soft. When n is less than 1.0, the film lacks in smoothness and when it exceeds 1.8, the viscosity is too high, which is not preferable for blending into cosmetics.
The average molecular weight of this organic silicone resin is about 1500 to 1
It is preferably 0000. The amount of the organic silicone resin used in the present invention is 0.1 to 0.1% in the hair cosmetic composition.
It is 50.0% by weight, preferably 1.0 to 25.0% by weight. If it is less than 0.1% by weight, a sufficient effect cannot be obtained, and 5
Even if it exceeds 0.0% by weight, the effect of the present invention is not enhanced.

Polyvinylpyrrolidone-vinyl acetate copolymer used in the present invention (hereinafter referred to as PVP / VA).
Is a PVP / VA copolymerization ratio of 7/3 to 3 in molar ratio.
/ 7. If the value of PVP / VA is larger than 7/3,
A sticky feeling occurs during use. On the other hand, when the value of PVP / VA is smaller than 3/7, the hair setting power is weak and the water solubility is lowered, and the commercial value is lowered when it is used for transparent products such as styling gel. Typical commercial products of PVP / VA used in the present invention include, for example, PVP.
/ VA S-630 (PVP / VA = 6/4: manufactured by GAF), Rubiscol VA551, VA55E (PVP /
VA = 5/5: manufactured by BASF), or Rubiscol VA371, VA37E (PVP / VA = 3/7: BA
SF product) and the like. The content of PVP / VA in the hair cosmetic composition is 0.1 to 12.0% by weight, preferably 0.5 to 8.0% by weight. 0.1% by weight
When the amount is less than the above range, the effect of smoothing hair is not sufficiently obtained, and when the amount is more than 12.0% by weight, the base odor of vinyl acetate is generated, which is not preferable.

The dosage form of the present invention is optional and may be an aerosol,
Any non-aerosol can be used.

Further, the hair cosmetic composition of the present invention may contain, in addition to the above-mentioned essential components, other optional components as long as the effects of the present invention are not impaired. Such optional components include
For example, inorganic salts such as sodium chloride and potassium chloride for adjusting viscosity and gel strength, natural and synthetic polymer substances such as locust bean gum, xanthan gum, cross-linked polyacrylic acid, avocado oil, jojoba oil, macadamian nuts. Oils, glycerides such as olive oil, waxes such as beeswax and lanolin, hydrocarbons such as liquid paraffin, solid paraffin, isoparaffin and squalane, straight chain and branched higher alcohols such as cetyl alcohol, stearyl alcohol and 2-octyldodecanol , Propylene glycol, glycerin, 1,3-butylene glycol, polyglycerin, sorbitol and other polyhydric alcohols, isopropyl myristate, octyldodecyl myristate and other esters, oleic acid diethanolamide, Amides such as uric acid diethanolamide, silicone derivatives such as dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, amino-modified silicone, cationic surfactants such as stearyltrimethylammonium chloride and distearyldimethylammonium, polyoxy Anionic surfactants such as ethylene lauryl ether sulfate and polyoxyethylene lauryl sulfosuccinate, amphoteric surfactants such as lauryl hydroxysulfobetaine and lauryl dimethylcarbobetaine, acrylic acid and / or methacrylic acid and alkyl (meth) acrylate Anionic polymers such as ester copolymers, N-methacryloyl-N, N-dimethylammonium-α-N
-Amphophilic polymers such as copolymers of methylcarboxybetaine and butyl methacrylate, protein derivatives and amino acids such as collagen and keratin hydrolysates, plant extracts, herbal medicines, vitamins, UV absorbers such as oxybenzone,
Examples include preservatives such as parabens, chelating agents such as EDTA, dyes, pigments, and fragrances.

[0009]

EXAMPLES The present invention will now be described in more detail with reference to representative examples, but the present invention is not limited thereto. The blending amounts are all weight%. Example 1 Hairblow (1) Decamethylcyclopentasiloxane 15% by weight (2) Dimethylpolysiloxane (n = 3000) 3 (3) R _n SiO _{(4-n) / 2} organic silicone resin 5 (where R is a methyl group) , N = 1.0, average molecular weight = 1500) (4) Polyoxyethylene hydrogenated castor oil (60EO) 2 (5) 1,3-butylene glycol 2 (6) PVP / VA (6/4) 1 (7) Ethanol 15 (8) Ion-exchanged water balance (9) Fragrance suitable amount (2), (3) is dissolved in the manufacturing method (1), and the mixture is added to the mixture of (4), (5) and emulsified, and (6), (7) ), (8), (9) are mixed.

Example 2 Foamed aerosol cosmetic composition for hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane 2 (3) R _n SiO _{(4-n) / 2} organosilicone resin 10 ( R is a phenyl group, n = 1.8, average molecular weight = 10000) (4) Polyoxyethylene hydrogenated castor oil (120EO) 2 (5) Glycerin 1 (6) PVP / VA (5/5) 6 (7) Ethanol 10 ( 8) Ion-exchanged water balance (9) n-butane 8 (10) Fragrance A suitable amount (2) and (3) are dissolved in the production method (1), and the mixture is added to the mixture of (4) and (5) and emulsified. The solution mixed with (6), (7), (8), and (10) is put into an aerosol container, and after attaching a valve, (9) is filled.

Example 3 Hair cream (1) 25% by weight of decamethylcyclohexasiloxane (2) Dimethylpolysiloxane (n = 10000) 6 (3) R _n SiO _{(4-n) / 2} organosilicone resin 5 ( 10% of R is phenyl group, the rest is methyl group, n = 1.3, average molecular weight = 3000) (4) Polyoxyethylene hydrogenated castor oil (120EO) 2 (5) Glycerin 3 (6) PVP / VA (7/3 ) 0.1 (7) Ethanol 10 (8) Ion-exchanged water balance (9) Polyvinyl alcohol 1 (10) Fragrance Suitable amount (2), (3) is dissolved in the manufacturing method (1), and (4), (5) The mixture is added to the mixture of (1), emulsified, and mixed with (6), (7), (8), (9) and (10).

Example 4 Hair Oil (1) Decamethylcyclopentasiloxane 57 wt% (2) Dimethylpolysiloxane (5 cps) 20 (3) Dimethylpolysiloxane (n = 7000) 5 (4) R _n SiO _{(4-n ) / 2} organic silicone resin 5 (R is an ethyl group, n = 1.1, average molecular weight = 2000) (5) PVP / VA (6/4) 3 (6) Ethanol 10 (7) Perfume Proper amount Manufacturing method (1) ~ (7) is stirred, dissolved and mixed at 70 to 80 ° C.
A viscous and highly transparent liquid hair oil having a viscosity of 500 cps was obtained.

Comparative Example 1 Foamed aerosol cosmetic for hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane (n = 10000) 2 (3) Glycerin 1 (4) Polyethylene (60) Castor castor Oil ester 2 (5) Betained dialkylaminoalkyl acrylate polymer 3 (6) Ethanol 10 (7) Ion-exchanged water 65 (8) n-Butane 7 (9) Fragrance A suitable amount of (2) is dissolved in the production method (1). , (3), (4) mixture, emulsified and mixed with (5), (6), (7), (9) solution into the aerosol container and after attaching the valve, Fill (8).

Comparative Example 2 Hair Cream (1) Decamethylcyclohexasiloxane 25 wt% (2) Dimethylpolysiloxane (n = 10000) 3 (3) Glycerin 3 (4) Polyethylene (120) Castor oil ester 3 (5 ) Betained dialkylaminoalkyl acrylate polymer 3 (6) Ethanol 10 (7) Ion-exchanged water 52 (8) Polyvinyl alcohol 1 (9) Fragrance A suitable amount of (2) is dissolved in the production method (1) to prepare (3), ( Add to the mixture of 4) and emulsify and mix with (5), (6), (7), (8), (9).

Comparative Example 3 Foamed aerosol cosmetic for hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane 2 (3) R _n SiO _{(4-n) / 2} organosilicone resin 10 ( R is a phenyl group, n = 1.8, average molecular weight = 10000) (4) Polyoxyethylene hydrogenated castor oil (120EO) 2 (5) Glycerin 1 (6) Ethanol 10 (7) Ion-exchanged water balance (8) n-butane 8 (9) Fragrance A suitable amount of (2) and (3) are dissolved in the production method (1), added to the mixture of (4) and (5) and emulsified to obtain (6), (7) and (9). Put the mixed solution in an aerosol container, attach a valve, and then fill (8).

Comparative Example 4 Foamed Aerosol Cosmetic for Hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane 2 (3) Polyoxyethylene hydrogenated castor oil (120EO) 2 (4) Glycerin 1 ( 5) PVP / VA (5/5) 6 (6) Ethanol 10 (7) Ion-exchanged water balance (8) n-Butane 8 (9) Fragrance Suitable amount Dissolve (2) in the manufacturing method (1), and (3) In addition to the mixture of (4), emulsify, put the solution prepared by mixing with (5), (6), (7), (9) into the aerosol container, and after attaching the valve, (8) To fill.

Comparative Example 5 Foamed aerosol cosmetic for hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane 2 (3) R _n SiO _{(4-n) / 2} organosilicone resin 10 ( R is a phenyl group, n = 1.8, average molecular weight = 10000) (4) Polyoxyethylene hydrogenated castor oil (120EO) 2 (5) Glycerin 1 (6) PVP / VA (8/2) 6 (7) Ethanol 10 ( 8) Ion-exchanged water balance (9) n-butane 8 (10) Fragrance A suitable amount (2) and (3) are dissolved in the production method (1), and the mixture is added to the mixture of (4) and (5) and emulsified. The solution mixed with (6), (7), (8), and (10) is put into an aerosol container, and after attaching a valve, (9) is filled.

Comparative Example 6 Foamed aerosol cosmetic for hair (1) Octamethylcyclotetrasiloxane 10% by weight (2) Dimethylpolysiloxane 2 (3) R _n SiO _{(4-n) / 2} organosilicone resin 10 ( R is a phenyl group, n = 1.8, average molecular weight = 10000) (4) Polyoxyethylene hydrogenated castor oil (120EO) 2 (5) Glycerin 1 (6) PVP / VA (2/8) 6 (7) Ethanol 10 ( 8) Ion-exchanged water balance (9) n-butane 8 (10) Fragrance A suitable amount (2) and (3) are dissolved in the production method (1), and the mixture is added to the mixture of (4) and (5) and emulsified. The solution mixed with (6), (7), (8), and (10) is put into an aerosol container, and after attaching a valve, (9) is filled.

Next, regarding the hair cosmetics of Examples 1 to 4 and Comparative Examples 1 to 6, (1) stickiness of hands, (2) ease of combing, (3) smoothness, (4) gloss of hair ,
(5) The flattening effect of curly hair was evaluated. The results are shown in Tables 1 and 2. The test methods and evaluation methods are as follows.

(1) Stickiness of the hand 1 g of the sample was placed on the palm of the hand and rubbed with the hand for 30 seconds, and the stickiness of the hand was sensory evaluated. ○: No stickiness at all. Δ: Slightly sticky. X: There is considerable stickiness.

(2) Ease of Combing 2 g of a sample was applied to hair strands (4 g), the shape was adjusted with a comb, and the ease of combing was sensory evaluated immediately and 6 hours later. ○: Good combing. Δ: Slightly caught. ×: caught.

(3) Smoothness In the same manner as in (2) above, the smoothness of the hair strand was sensory evaluated immediately after and 6 hours later. ○: Smooth. Δ: Somewhat smooth. X: Not smooth

(4) Luster of hair Just like (2), the luster of the hair strand was sensory evaluated immediately after and 6 hours later. ○: Shiny Δ: There is a gloss. X: There is no gloss.

(5) Straightening effect of curly hair 2 g of a sample is applied to curly hair strands (4 g),
It was blown with a comb, and the straightening effect of the curly hair was sensory evaluated immediately after and 6 hours later. ◯: There is no curly hair or frayed hair tips. Δ: There is a slight amount of loose hair / tips. X: There is a considerable amount of loose hair / tips.

[0025]

[Table 1] ─────────────────────────────────── (1) (2) (3) (4 ) (5) ─────────────────────────────────── Immediately after Example 1 ○ ○ ○ ○ ○ 6 hours Post- ○ ○ ○ ○ ─────────────────────────────────── Immediately after Example 2 ○ ○ ○ ○ ○ 6 hours later- ○ ○ ○ ○ ─────────────────────────────────── Immediately after Example 3 ○ ○ ○ ○ ○ 6 hours later − ○ ○ ○ ○ ─────────────────────────────────── Immediately after Example 4 ○ ○ ○ ○ ○ 6 hours later ○ ○ ○ ○ ────────────────────────────────────

[0026]

[Table 2] ─────────────────────────────────── (1) (2) (3) (4 ) (5) ─────────────────────────────────── Immediately after Comparative Example 1 ○ ○ ○ ○ ○ 6 hours After- △ △ × △ ─────────────────────────────────── Immediately after Comparative Example 2 ○ ○ ○ ○ ○ 6 hours later- △ △ △ △ ─────────────────────────────────── Immediately after Comparative Example 3 ○ ○ ○ ○ ○ 6 hours later － ○ ○ △ △ ─────────────────────────────────── Immediately after Comparative Example 4 ○ ○ ○ △ ○ 6 hours later － △ △ ○ △ ─────────────────────────────────── Comparative example Immediately after × ○ ○ ○ ○ After 6 hours − × × ○ ○ ─────────────────────────────────── Comparison Example 6 Immediately after ○ ○ ○ ○ ○ After 6 hours − ○ ○ ○ × ─────────────────────────────────── ─

[0027]

Industrial Applicability As described above, the hair cosmetic composition of the present invention imparts excellent gloss to the hair, provides a smooth feel, and is also excellent in the effect of straightening the curly hair.

Claims (4)

[Claims] 1. A general formula: R _n SiO _{(4-n) / 2} (wherein R represents a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group, and n
Represents a value of 1.0 to 1.8. ) Is an average constitutional unit, and the copolymerization ratio of polyvinylpyrrolidone / vinyl acetate is 7/3 to 3 with one or more organic silicone resins.
A polyvinylpyrrolidone-vinyl acetate copolymer of / 7. 2. The amount of the organic silicone resin compounded is 0.1 to 10.
The hair cosmetic composition according to claim 1, wherein the content is 50.0% by weight, and the blending amount of the polyvinylpyrrolidone / vinyl acetate copolymer is 0.1 to 12.0% by weight. 3. The blending amount of the organic silicone resin is 1.0 to
The hair cosmetic composition according to claim 2, wherein the content is 25.0% by weight, and the blending amount of the polyvinylpyrrolidone / vinyl acetate copolymer is 0.5 to 8.0% by weight. 4. The average molecular weight of the organosilicone resin is 15
The hair cosmetic according to any one of claims 1 to 3, which is 00 to 10,000.