JP2001089332A - Emulsified cosmetic for hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an emulsified cosmetic having good stability and light slip, capable of readily applying to the hair, making the hair bouncing and imparting gloss to the hair, free from tackiness and capable of imparting excellent moisture-retaining effect to the hair for a long time. SOLUTION: This emulsified cosmetic for hair comprises 2-20 wt.% polyether compound to which propylene oxide is subjected to addition polymerization to glycerol and/or polyglycerol, 2-20 wt.% one or two kinds of solid components selected from an oily component which is solid at 25 deg.C and hydrophobic emulsifying agent which is solid at 25 deg.C and 0.05-5 wt.% one or two kinds of hydrophilic surfactants selected from nonionic surfactant and anionic surfactant having >=10.0 HLB.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a light-weight, easy-to-apply hair, supple and lustrous hair, has no stickiness, and gives an excellent moist feeling for a long time. The present invention relates to an emulsified cosmetic for hair which is excellent in quality.

[0002]

2. Description of the Related Art Conventionally, there are various products such as hair cream, hair wax and treatment milky lotion as emulsified cosmetics for hair for the purpose of making hair supple and imparting moist feeling and luster. In order to obtain such an effect on hair, the following methods have been adopted. The quaternary ammonium salt makes the hair supple and has a rinsing effect, but has little effect of imparting a moist feeling and luster. In addition, since quaternary ammonium salts are irritating to the skin, their safety on the scalp is of concern. In addition, hydrolyzable collagen (polypeptide) derivatives and the like make the hair supple and give a moist feeling, but the effect is insufficient, the effect is poor in persistence, and almost no effect of giving gloss to the hair. Absent. Furthermore, this has a peculiar odor and has a problem in practical use.

[0003] Various polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, glycerin and the like are added for the purpose of imparting a moist feeling to hair. However, the emulsified cosmetic for hair containing these polyhydric alcohols gives a moist feeling but has a sticky, heavy feel and a poor feeling of use. In addition, those blended with propylene glycol and 1,3 butylene glycol have a drawback that the persistence of moist feeling is weak.

[0004] In order to impart gloss to hair, a relatively large amount of silicone oil, castor oil, mocro, petrolatum, etc. having a high degree of polymerization is blended with emulsified cosmetics for hair, but these oils have a strong oily feeling and a feeling of use. And has no effect of imparting a moist feeling or suppleness to the hair.

[0005] On the other hand, hair cosmetics for hair styling using polyoxypropylene diglycerether in combination with a polymer compound for forming a film and the like are commercially available. However, these products do not contain an oily component, and no emulsified hair cosmetics containing polyoxypropylene diglycerol are known. The reason is that it was very difficult to stably blend polyoxypropylene diglyceryl ether into the emulsified system. We studied before the present invention, in order to improve the stability of the emulsified state, use of a polymer type emulsifier such as a polyoxyethylene fatty acid ester, and a carboxyvinyl polymer, a water-soluble polymer such as polyvinylpyrrolidone. Although the use was effective, there were problems that the stability was still insufficient, the nose was heavy, the stickiness was strong, the use feeling was poor, and flaking occurred.

[0006]

DISCLOSURE OF THE INVENTION The present invention overcomes the drawbacks of the conventional emulsified cosmetic for hair, has a light nose and is easy to apply to hair, and makes the hair supple and glossy. An object of the present invention is to provide an emulsified cosmetic for hair which has no stickiness, gives an excellent moist feeling for a long time, and has excellent stability.

[0007]

Means for Solving the Problems The present inventors have conducted intensive studies in order to achieve the above object, and as a result, have found that using a polyether compound obtained by addition-polymerizing propylene oxide to glycerin and / or polyglycerin, an appropriate amount of solid oil component is used. By blending a solid lipophilic emulsifier or a hydrophilic emulsifier,
It has a light nose and is easy to apply to hair.It also gives the hair suppleness and shine, has no stickiness, gives an excellent moisturizing effect for a long time, and provides an emulsion cosmetic cosmetic for hair with excellent stability. This led to the completion of the present invention.

That is, the present invention is selected from 2 to 20% by weight of a polyether compound obtained by addition polymerization of glycerin and / or polyglycerin with propylene oxide, an oily component solid at 25 ° C., and a lipophilic emulsifier solid at 25 ° C. One or more solid components of 2 to 20% by weight, HLB is 1
An emulsified cosmetic for hair comprising 0.05 to 5% by weight of one or more hydrophilic surfactants selected from 0.0 or more nonionic surfactants and anionic surfactants. It is.

Hereinafter, the present invention will be described in detail. The polyether compound obtained by addition polymerization of glycerin and / or polyglycerin with propylene oxide used in the present invention includes polyoxypropylene glyceryl ether, polyoxypropylene diglyceryl ether, polyoxypropylene triglyceryl ether, and polyoxypropylene tetraglyceryl ether. And polyoxypropylene hexaglyceryl ether, polyoxypropylene decaglyceryl ether, etc., and one or more of these are used. Of these, polyoxypropylene diglyceryl ether is preferred for obtaining a feeling of use that is light and free of stickiness. Further, the number of moles of polyoxypropylene added is 5 to 20, especially 8 to 15
Are preferred. If the number of added moles is less than 5, suppleness to hair may not be sufficiently exhibited,
If it exceeds 300, the hydrophobicity increases and the oily feeling becomes stronger, and the feeling of use becomes worse. Also, it becomes difficult to maintain the moisturizing effect for a long time.

In the emulsified cosmetic for hair of the present invention, the compounding amount of polyoxypropylene glyceryl and / or polyglyceryl ether is 2 to 20% by weight, preferably 5 to 15% by weight based on the total amount of the emulsified cosmetic for hair. %. If the content is less than 2% by weight, the suppleness and luster to the hair are not sufficiently exhibited, and the moisturizing effect is insufficient. On the other hand, when the content exceeds 20% by weight, a heavy feeling with stickiness is exhibited, and the feeling of use is deteriorated.

In the present invention, one or more solid components selected from oily components solid at 25 ° C. and lipophilic emulsifiers solid at 25 ° C. are used. Among the solid components,
As the oily component solid at 25 ° C, cetanol, stearyl alcohol, saturated higher alcohols such as behenyl alcohol, saturated fatty acids such as stearic acid, palmitic acid and behenic acid, coconut oil, hydrogenated coconut oil, tallow, Solid animal and vegetable oils and hardened oils such as hardened tallow, hardened soybean oil, hardened rapeseed oil, solid hydrocarbons such as solid paraffin, microcrystalline wax, white petrolatum, waxes such as beeswax, carnauba wax and hydrogenated jojoba oil , Myristyl myristate, cetyl palmitate, cholesteryl stearate, polyoxyethylene cetyl ether stearate, solid ester oils such as polyoxyethylene stearyl ether stearate and the like, and one or more of these can be used. use.

Examples of lipophilic emulsifiers which are solid at 25 ° C. include glycerin monostearate, propylene glycol monostearate, ethylene glycol monostearate, sorbitan monostearate, sorbitan tristearate, tetraglycerin pentastearate, and hexaglycerol. Lipophilic polyhydric alcohol fatty acid esters such as glycerin pentastearate, alkyl glyceryl ethers such as batyl alcohol, polyoxyethylene (3) cetyl ether, polyoxyethylene (5) behenyl ether, polyoxyethylene (3) stearyl ether ,
Examples thereof include polyoxyethylene-based nonionic surfactants such as polyoxyethylene (5) cholesteryl ether, and one or more of these are used.

In the present invention, the solid component consisting of the oily component solid at 25 ° C. and the lipophilic emulsifier solid at 25 ° C. is 2 to 20% by weight, preferably 7 to 20% by weight, based on the total amount of the emulsified cosmetic for hair. Used in the range of １５15% by weight. If it is less than 2% by weight, it is difficult to obtain a stable emulsified cosmetic for hair. On the other hand, when the content exceeds 20% by weight, the resulting emulsified cosmetic for hair is hard, has a heavy stiffness, develops a sticky and heavy feel, and the feeling of use becomes extremely poor.

In the present invention, one or two or more hydrophilic surfactants selected from nonionic surfactants and anionic surfactants having an HLB of 10.0 or more are used.
As a nonionic surfactant having an HLB of 10.0 or more,
Polyglycene fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbite fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hardened castor oil, polyoxyethylene sterol,
Polyoxyethylene hydrogenated sterol, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene lanolin, polyoxyethylene lanolin alcohol, polyoxyethylene pyroglutamate, poly (oxyethylene / oxypropylene) methylpoly Examples thereof include a siloxane copolymer and a polyoxyethylene methylpolysiloxane copolymer. Among them, the use of polyglycerin fatty acid ester is more preferable because an emulsified cosmetic for hair with extremely light stiffness can be obtained.

Examples of the anionic surfactant include N-acylglutamate, N-acylglycine salt, N-acyltaurine salt, polyoxyethylene alkyl ether phosphate, alkyl ether carboxylate, sulfonate and alkyl sulfate. , Polyoxyethylene alkyl ether sulfate, fatty acid soap and the like. These HLB10.
One or more hydrophilic surfactants selected from zero or more nonionic surfactants and anionic surfactants are used.

In the present invention, the above-mentioned hydrophilic surfactant is used in an amount of 0.05 to 5% by weight, preferably 0.2 to 3.0% by weight, based on the total amount of the emulsified cosmetic for hair. 0.0
If it is less than 5% by weight, it will be difficult to keep the emulsified state stable. On the other hand, if it exceeds 5% by weight, a sticky and heavy feeling is exhibited, and the feeling of use is deteriorated.

The emulsified cosmetic composition for hair of the present invention contains liquid oily components, for example, vegetable oils such as jojoba oil, macadamia nut oil, avocado oil and sasanqua oil, and triglyceride oils such as glyceryl trioctanoate and coconut fatty acid triglyceride. , Squalane, liquid paraffin, hydrocarbon oils such as α-olefin oligomers, fatty acid ester oils such as isopropyl myristate, cetyl octanoate, and isocetyl stearate; silicone oils such as dimethyl polysiloxane and cyclic methyl polysiloxane; One or more kinds such as fluoropolyether oils can be used. When these liquid oily components are used in an amount of 35% by weight or less, preferably 20% by weight or less based on the total amount of the emulsified cosmetic for hair, an emulsified cosmetic for hair which can sufficiently obtain the effects of the present invention can be prepared. .

The emulsified cosmetic for hair of the present invention contains components usually used within the range not impairing the present invention, for example, polyvalent compounds such as diglycerin, glycerin, 1,3-butylene glycol, propylene glycol and polyethylene glycol. Alcohols, drugs with anti-inflammatory and cell-activating effects,
Dyes, fragrances, preservatives, bactericides, chelating agents, antioxidants, pH adjusters and the like can be appropriately compounded.

The emulsified cosmetic for hair of the present invention can be produced according to a conventional method, and can be obtained, for example, by emulsifying an aqueous phase and an oil phase using an emulsifier such as a homomixer.

[0020]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 12 and Comparative Examples 1 to 12 Emulsion cosmetics for hair were prepared according to the compositions shown in the table and evaluated based on the following evaluation criteria. The results are shown in Tables 1 and 2.

(Preparation method) An aqueous phase composed of a hydrophilic surfactant, water and the like and an oil phase composed of polyoxypropylene glyceryl and / or polyglyceryl ether, an oil component, a lipophilic surfactant and the like are heated at 70 to 80 ° C. Dissolve. While stirring the oil phase with a homomixer, the aqueous phase was gradually added to emulsify, and the mixture was stirred and cooled to room temperature to prepare.

(Evaluation Method and Evaluation Criteria)
(0 cm, 10 g) was washed with shampoo and rinsed, drained, air-dried, combed, and 0.5 g of the samples prepared in Examples and Comparative Examples were applied. The coating was kept light for 1 hour in a constant temperature / humidity room at 25 ° C. and 65% RH, and subjected to sensory evaluation according to the following criteria. 1) Feeling of use "Lightness of nose when applied""Nostickiness" ◎: Light ◎: No stickiness ○: Slightly light ○: Almost no stickiness △: Slightly heavy △: Slight stickiness Yes ×: Heavy ×: Sticky feeling “Flexible” ◎: considerably pliable compared to uncoated hair bundles ○: supple compared to uncoated hair bundles △: uncoated Slightly supple compared to hair bundles ×: Almost the same as uncoated hair bundles “Moist feeling” ◎: considerably moist compared to uncoated hair bundles ○: To uncoated hair bundles Moist in comparison. Δ: Slightly moist in comparison with uncoated hair bundles X: Almost the same as uncoated hair bundles “Glossy” ◎: Pretty glossy compared to uncoated hair bundles ：: glossy as compared to uncoated hair bundles △: slightly compared to uncoated hair bundles There is gloss ×: Not tuft of coating to be almost the same 2) the tresses used for evaluation of durability the moist feeling of moistness further 25 ° C. · 6
The sample was allowed to stand in a 5% RH constant temperature / humidity chamber for 24 hours after application, and evaluated according to the same criteria as the above “moist feeling”. 3) Stability over time After the samples prepared in Examples and Comparative Examples were left in a thermostat at 50 ° C. for one month, the state was visually observed and evaluated according to the following evaluation criteria. ○: No change in state ×: State change such as separation

[0024]

[Table 1]

[0025]

[Table 2]

Tables 1 and 2 show that Examples 1 to 4 according to the present invention were used.
12 The emulsified cosmetic for hair showed excellent performance in all of usability, persistence of moist feeling and stability over time. on the other hand,
Comparative Examples 1 to 12 The emulsified cosmetics for hair showed inadequate results in any or all aspects of the usability, the long-lasting moist feeling, and the stability over time.

[0027]

EFFECTS OF THE INVENTION The emulsified cosmetic for hair of the present invention has good stability, has a light nose and is easy to apply to hair, and also makes the hair supple and lustrous, and has no stickiness.
Further, it is an excellent material that gives an excellent moisturizing effect for a long time.

Continuation of the front page (72) Inventor Atsuyuki Miyamoto 1-20-20 Rinkai-cho, Izumiotsu-shi, Osaka F-term in the laboratory of Sakamoto Yakuhin Kogyo Co., Ltd. 4C083 AC072 AC122 AC172 AC181 AC182 AC352 AC421 AC422 AC431 AC432 AC661 AC662 AC692 AD111 AD112 AD151 AD152 AD432 AD491 AD511 BB04 BB11 CC31 DD31 EE01 EE06

Claims (3)

[Claims] 1. A polyether compound obtained by addition polymerization of glycerin and / or polyglycerin with propylene oxide in an amount of 2 to 20% by weight, an oily component solid at 25 ° C., and 25 ° C.
One or more solid components selected from solid lipophilic emulsifiers in 2 to 20% by weight, and one or more selected from nonionic surfactants and anionic surfactants having an HLB of 10.0 or more An emulsified cosmetic for hair, comprising 0.05 to 5% by weight of a hydrophilic surfactant. 2. A polyether compound obtained by addition-polymerizing propylene oxide to glycerin and / or polyglycerin, wherein propylene oxide is added to diglycerin by 5 to 20%.
2. The emulsified cosmetic for hair according to claim 1, which is a polyether compound obtained by molar addition polymerization. 3. The nonionic surfactant having an HLB of 10.0 or more includes polyglycene fatty acid ester, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene sterol, Polyoxyethylene hydrogenated sterol, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene lanolin, polyoxyethylene lanolin alcohol, polyoxyethylene pyroglutamate, poly (oxyethylene / oxypropylene) methylpoly The emulsified cosmetic for hair according to claim 1 or 2, wherein the emulsion is one or more selected from siloxane copolymers and polyoxyethylene methyl polysiloxane copolymers. Fees.