JP2000212046A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hair cosmetic capable of imparting a sufficient smooth feeling, sufficient softness and a sufficient gloss to the hair and excellent in hair protecting effects. SOLUTION: The characteristic of this hair cosmetic is to contain an ester compound prepared by esterifying ingredients (1), (2) and (3) mentioned below and an amidoamine-based oil having amide bond and a tertiary aminic nitrogen atom in one molecule and has the content of the ester compound of 0.01-10.0 wt.% based on the total amount of the hair cosmetic and the content of the amidoamine-based oil of 1-50 times the content of the ester compound expressed in terms of weight ratio. (1) a polyhydric alcohol, (2) an 8-30C fatty acid or an 8-30C hydroxy-fatty acid (a straight-chain or a branched, a saturated or an unsaturated one) and (3) a 12-30C straight-chain or a 12-30C branched dibasic acid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hair cosmetic. More specifically, the present invention relates to a hair cosmetic which imparts sufficient smoothness and flexibility to hair and has an excellent hair protection effect.

[0002]

2. Description of the Related Art Conventional shampoos and rinses contain liquid polar oils, higher fatty acids, and the like, and these oils are sticky, so that the hair has a smooth feeling during or after shampooing. Lack of flexibility sometimes caused poor combing.

[0003]

For the purpose of eliminating such stickiness, silicone oils are widely used. However, due to the recent increase in environmental problems, use of ester oils or vegetable oils as substitutes for silicone oils has been increasing. Is being reviewed.

[0004] Under these circumstances, there has been a strong demand for the development of shampoos, rinses, and the like that provide sufficient smoothness and flexibility to hair and have excellent hair protection effects without using silicone oil.

[0005] In view of the above problems, the present inventors have shampooed not to use silicone oil but to impart sufficient smoothness and flexibility to hair and have an excellent hair protection effect.
As a result of intensive studies to obtain a rinse and the like, the present inventors have found that the above-mentioned problems can be solved by blending a specific ester compound and an amidoamine-based oil with a specific composition, and have completed the present invention.

An object of the present invention is to provide hair cosmetics such as shampoos and rinses which impart sufficient smoothness and flexibility to hair and have an excellent hair protection effect.

[0007]

That is, the present invention provides an ester compound obtained by esterifying the following components (1), (2) and (3), an amide bond and a tertiary amine nitrogen atom. An amidoamine-based oil component in one molecule, the content of the ester compound is 0.01 to 10.0% by weight based on the total amount of the hair cosmetic, and the content of the amidoamine-based oil component is an ester by weight. 1 of the content of the compound
It is intended to provide a hair cosmetic characterized by a factor of up to 50 times. (1) Polyhydric alcohol (2) Fatty acid or hydroxy fatty acid having 8 to 30 carbon atoms (linear or branched, saturated or unsaturated) (3) Linear or branched dibasic acid having 12 to 30 carbon atoms

Further, the present invention provides the above-mentioned ester compound,
An object of the present invention is to provide the above hair cosmetic, which is an ester compound obtained by esterifying glycerin with behenic acid and eicosane diacid.

Further, the present invention provides the above-mentioned hair cosmetic, wherein the amidoamine-based oil component is a fatty acid amide alkylenedialkylamine.

[0010] The present invention also provides the above hair cosmetic, wherein the hair cosmetic is an oil-in-water emulsion composition.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail.

The ester compound used in the present invention is an ester compound obtained from a polyhydric alcohol, a fatty acid or hydroxy fatty acid having 8 to 30 carbon atoms, and a linear or branched dibasic acid having 12 to 30 carbon atoms. Is a product obtained by charging the above component at an arbitrary ratio and esterifying it by a known method, and is usually used as a mixed oligoester.

The ester compound has a function of gelling the amidoamine-based oil, and this function can change the usability and functionality of the amidoamine-based oil.

Examples of the polyhydric alcohol include glycerin, trimethylolpropane, pentaerythritol,
Glycerin condensate, sorbit, trimethylolethane and the like can be mentioned.

Fatty acids or hydroxy fatty acids having 8 to 30 carbon atoms include those in which the hydrocarbon group or the hydroxy hydrocarbon group is linear, branched, saturated or unsaturated, such as caprylic acid, lauric acid, myristic acid, Palmitic acid, stearic acid, behenic acid, cerotic acid, montanic acid, melicic acid, isostearic acid, oleic acid, 2-ethylhexanoic acid, 12-hydroxystearic acid and the like.

Examples of the linear or branched dibasic acid having 12 to 30 carbon atoms include dodecane diacid, eicosane diacid,
1,10-decamethylene diacid, 1,12-dodecamethylene diacid, 1,15-pentadecamethylene diacid, 1,28
-Octacosamethylene diacid, 1,7-ethyloctadecane diacid, and the like.

In the present invention, glycerin-behenic acid eicosandicarboxylic acid, an ester compound obtained by esterifying glycerin with behenic acid and eicosane diacid, is particularly preferably used in terms of usability and stability over time.

Glycerin behenic acid eicosane dicarboxylic acid is prepared by mixing glycerin, behenic acid, and eicosane diacid at an arbitrary charge ratio and esterifying the mixture to reduce the content of glycerin units, behenic acid units, and eicosane diacid units. It is obtained in the form of a mixture of different ester compounds.

The amount of the ester compound in the present invention is from 0.01 to 10.0% by weight, preferably from 0.1 to 5.0% by weight, based on the total amount of the hair cosmetic. If the amount is less than 0.01% by weight, a sufficient effect on the functionality and usability cannot be obtained. On the other hand, if it exceeds 10.0% by weight, it becomes too hard and the usability is impaired.

The amidoamine type oil used in the present invention is 1
It is a compound having an amide bond and a tertiary amine nitrogen atom in the molecule, and any amidoamine-based oil generally used as an oil in cosmetics can be used. For example,
Examples thereof include stearic acid diethanolaminoethylamide and stearic acid diisopanolaminopropylamide, and fatty acid amide alkylenedialkylamines are particularly preferable. Specific examples include diethylaminoethylamide stearate and dimethylaminopropylamide stearate, with dimethylaminopropylamide stearate being preferred.

Any one or more of these amidoamine-based oils can be used, and the total amount thereof is 1 to 50 times by weight relative to the ester compound.

The hair cosmetic composition of the present invention comprises, in addition to the above essential ingredients, other ingredients generally used in hair cosmetic compositions in a qualitative and quantitative range that does not impair the effects of the present invention. The desired product can be manufactured by a conventional method according to the shape. For example, hydrocarbons such as liquid paraffin, petrolatum, and squalane; nonionic surfactants such as polyglycerin fatty acid ester, polyoxyethylene fatty acid ester, and polyoxyethylene sorbitan monolaurate; cellulose derivatives such as methylcellulose and hydroxyethylcellulose; Cationized polymers such as cellulose; humectants such as propylene glycol and glycerin;
Disinfectants such as polypeptides; solvents such as water and alcohol;
Examples include a dandruff agent, a chelating agent, an ultraviolet absorber, a coloring agent, and a fragrance, and one or more of these can be arbitrarily blended.

The hair cosmetic of the present invention may be in any dosage form, but is an oil-in-water emulsion composition because the ester compound as an essential component improves the usability and the effect by gelling the amidoamine-based oil component. Is preferred.

The hair cosmetics according to the present invention mean any composition used for hair, and include a wide variety of so-called hair cleansing agents such as shampoos, so-called hair treatment agents such as hair rinses, hair treatments and hair packs. Including.
In addition, the type of use is either a product that is applied to the hair at the time of use, is thoroughly rinsed with hot water and then rinsed with water, etc., or a product that is not rinsed off such as hair cream, hair spray, etc. Is also included.

[0025]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the following examples. In addition, the compounding amount is weight%.

"Examples 1-9, Comparative Examples 1-6""Table1"
In addition, a hair rinse of an oil-in-water emulsion composition was prepared by a conventional method using the compositions of Examples and Comparative Examples shown in “Table 2”, and this was used as a test sample to give a smooth feeling, flexibility, and hair. Was evaluated for its gloss imparting effect and hair protection effect. The results are shown in Table 1 and Table 2 together. In addition,
The ester compound used in the examples is glycerin, behenic acid, and eicosane dicarboxylic acid, which is obtained by esterifying glycerin, behenic acid, and eicosane diacid at a charge ratio of glycerin: behenic acid: eicosane diacid = 10: 15: 7. Is a mixture of

<Smoothness> After continuous use of each sample for one week by a professional panel of 20 women, during and after use (after drying)
Was evaluated organoleptically for the smoothness of the hair. Evaluation A: 18 or more people answered that there was smoothness B: 14 to 17 people answered that there was smoothness C: 8 to 13 people answered that there was smoothness D: 7 or less people had smoothness And answer

<Flexibility> Each sample was continuously used for one week by a professional panel of 20 women, and the flexibility of the hair during and after use (after drying) was organoleptically evaluated. Evaluation A: 18 or more people answered that they were flexible B: 14 to 17 people answered that they were flexible C: 8 to 13 people answered that they were flexible D: 7 or less people were flexible Responded

<Effect of imparting gloss to hair> 1 g of each sample was applied to a bundle of 500 to 600 hairs having a length of 15 cm,
After repeating shaking and rinsing (100 cycles / minute) twice in 300 ml of hot water at 300 ° C., the hair bundle was dried.
Ten hairs are arbitrarily selected from the hair bundle, and the bending light photometer GP-IR (manufactured by Murakami Color Research Laboratory Co., Ltd.) measures the reflected light distribution of the hair with respect to the incident light to determine the glossiness of the hair. It was determined from the following equation. G = s / ds s: specular reflection light amount d: diffuse reflection light amount The gloss imparting effect on the hair of each sample was evaluated as follows based on the gloss G obtained by the above method. Evaluation A: Great gloss imparting effect to hair (G> 15) B: Medium gloss imparting effect to hair (15 ≧ G> 10) C: Small gloss imparting effect to hair (10 ≧ G> 5) D: Hair No gloss imparting effect (5 ≧ G)

<Hair protection effect> 1 g of each sample is 15 c in length.
m, applied to 500-600 hair bundles, 40 ° C hot water,
After two cycles of shaking and rinsing (100 cycles / min) in 300 ml, the hair tresses were dried. The hair bundle was repeatedly brushed with a certain force and brushed 20,000 times, and the number of split ends and cuts generated was counted, and the split ends and cut incidences relative to the total number of hairs were calculated. The occurrence rate Y% of each sample-treated hair was compared with the occurrence rate of untreated split ends and cut hairs X%, and evaluated based on the value of Y / X as follows. Evaluation A: Large hair protection effect (Y / X <0.5) B: Medium hair protection effect (0.5 ≦ Y / X <0.8) C: Small hair protection effect (0.8 ≦ Y / X <1.0) D: No hair protection effect (1.0 ≦ Y / X)

[0031]

[Table 1] 1) Glycerin behenate eicosane dicarboxylate

[0032]

[Table 2] 1) Glycerin behenate eicosane dicarboxylate

From Tables 1 and 2, it can be seen that Examples of the present invention are excellent in all aspects of smoothness, flexibility, effect of imparting gloss to hair, and effect of protecting hair.

In the following, the present invention will be described with reference to other examples of the present invention.
The hair had an appropriate smoothness, flexibility, and luster, and was excellent in hair protection effect.

Example 7 (Hair rinse: oil-in-water emulsion composition) (Blending components) (% by weight) Cetyl 2-ethylhexanoate 10.0 Glycerin Behenate eicosane dicarboxylate 0.4 Liquid paraffin 2.0 Cetyl Alcohol 3.0 Amidopropyldimethylamine stearate 0.4 Lactic acid 0.4 Perfume appropriate amount Dye appropriate amount Preservative appropriate amount Purified water balance

Example 8 (Hair Treatment: Oil-in-Water Emulsion Composition) (Blending Components) (% by Weight) Myristate Palmitate 6.0 Glycerin Behenate Eicosandicarboxylate 0.4 0.4 Cetyl 2-ethylhexanoate 3 2.0 2-octyldodecanol 3.0 cetyl alcohol stearyltrimethylammonium chloride 0.8 amidopropyldimethylamine behenate 0.4 glycerin 5.0 hydroxyethylcellulose 0.5 citric acid 1.0 fragrance appropriate amount dye appropriate amount preservative Appropriate amount Purified water balance

Example 9 (Shampoo) (Ingredients) (% by weight) Myristate palmitate 0.5 Glycerin behenate eicosandicarboxylate 0.01 Polyoxyethylene (3) sodium lauryl ether sulfate 15.0 Coconut oil Fatty acid amidopropyl betaine 5.0 Coconut oil fatty acid diethanolamide 2.0 Cationized cellulose 0.5 Citric acid 0.2 Fragrance qs dye qs Preservative qs Purified water residue

[0038]

According to the present invention, by blending a specific ester compound and an amidoamine-based oil with a specific composition, sufficient smoothness, flexibility and luster can be imparted to hair,
It is possible to provide a hair cosmetic having an excellent hair protection effect.

Continued on the front page (72) Inventor Fumitaka Sato 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Kanagawa F-term in Shiseido Daiichi Research Center Co., Ltd. (reference) 4C083 AB052 AC022 AC061 AC062 AC092 AC111 AC121 AC241 AC291 AC301 AC302 AC372 AC391 AC392 AC421 AC422 AC641 AC642 AC692 AC712 AC782 AD091 AD092 AD132 AD282 CC38 CC39 DD23 DD27 DD33 EE06 EE07 EE29

Claims (4)

[Claims] 1. An ester compound obtained by esterifying the following components (1), (2) and (3) and an amidoamine oil having an amide bond and a tertiary amine nitrogen atom in one molecule. The content of the ester compound is 0.01 to 10.0% by weight based on the total amount of the hair cosmetic, and the content of the amidoamine-based oil is 1 to 50 times the content of the ester compound in a weight ratio. Hair cosmetics characterized by having. (1) Polyhydric alcohol (2) Fatty acid or hydroxy fatty acid having 8 to 30 carbon atoms (linear or branched, saturated or unsaturated) (3) Linear or branched dibasic acid having 12 to 30 carbon atoms 2. The hair cosmetic according to claim 1, wherein the ester compound is an ester compound obtained by esterifying glycerin with behenic acid and eicosane diacid. 3. The hair cosmetic according to claim 1, wherein the amidoamine-based oil is a fatty acid amide alkylenedialkylamine. 4. The hair cosmetic according to claim 1, wherein the hair cosmetic is an oil-in-water emulsion composition.