JP2893132B2 - Hair treatment composition - Google Patents

Description

The present invention relates to a hair treatment composition, and more particularly, to a transparent or translucent uniform liquid appearance which, when applied to wet hair, By forming a liquid crystal or a gel in which the liquid crystal is dispersed by moisture, the active ingredient is effectively adsorbed,
The present invention relates to a liquid crystal-forming hair treatment composition which gives a good smooth and moist feeling.

[Conventional technology]

In order to improve the feel of the hair, conventional hair treatment agents usually contain a fatty surfactant such as an alkyl quaternary ammonium salt or the like, and a higher alcohol or liquid paraffin or the like. As a means for blending these fats and oils, there has been a method of emulsifying or solubilizing using a cationic surfactant or a nonionic surfactant. Also,
JP-A-2-166187 describes a method in which a crystalline compound is dissolved in a solvent and a carboxylic acid type surfactant is added thereto.

[Problems to be solved by the invention]

However, since the above-mentioned hair treatment agent is usually used after washing after application, the emulsified particles are also washed away from the hair in the case of emulsification, and the cationic surfactant and oils and fats effectively remain on the hair. In addition, there are problems such as sliminess and stickiness at the time of application, and the amount of fats and oils cannot be sufficiently increased in the case of solubilization, and fats and oils are blended by the method of JP-A-2-166187. Even in this case, the active ingredient was lost by washing out, and a sufficient conditioning effect, that is, a good slippery and moist feeling could not be obtained.

Accordingly, there has been a demand for a hair treatment agent that sufficiently adsorbs a cationic surfactant and fats and oils to the hair and provides a good conditioning effect.

[Means for solving the problem]

In view of the above circumstances, the present inventors have conducted intensive studies and found that when a cationic surfactant, a nonionic or amphoteric surfactant, an oil or fat and a water-soluble alcohol were applied to hair, If it is formulated so as to form a uniform liquid crystal containing water or a gel in which the liquid crystal is dispersed, the cationic surfactant and oils and fats in the composition effectively remain on the hair, so that a sufficient conditioning effect is obtained. And completed the present invention.

That is, the present invention relates to the following components (A) to (D): (A) a cationic surfactant, (B) a nonionic or amphoteric surfactant, (C) oils and fats, and (D) water-soluble alcohols. A hair which is a translucent uniform liquid and contains the components (A) to (D) in an amount to form a liquid crystal or a gel in which the liquid crystal is dispersed when diluted with 2 to 30 times by weight of water. The present invention provides a treatment composition.

The cationic surfactant of the component (A) used in the present invention is preferably a quaternary ammonium salt, for example, a linear alkyltrimethylammonium halide, a linear dialkyldimethylammonium halide, a branched alkyltrimethylammonium halide, or a linear dialkylammonium halide. And a branched dialkyldimethylammonium halide. More preferred specific examples include cetyltrimethylammonium halide, stearyltolumethylammonium halide, behenyltrimethylammonium halide, 2-decyltetradecyltrimethylammonium halide, 2-dodecylhexadecylammonium halide, distearyldimethylammonium halide, and di-2-hexyl. Decyldimethylammonium halide, di-2-octyldodecyltrimethylammonium halide and the like can be mentioned.

Examples of the counter ion of these quaternary ammonium salts include chloride ion, bromine ion and iodine ion.

The quaternary ammonium salts may be used alone or in combination of two or more.

Examples of the nonionic surfactant or amphoteric surfactant (B) include polyoxyethylene (hereinafter, “POE”).
Stearyl ether, POE oleyl ether, P
OE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan isostearate, POE glyceryl monostearate, POE glyceryl isostearate, POE glyceryl triisostearate, POE isomethylolpropane triisostearate, etc. Nonionic activators having 5 moles or more of POE groups; sorbitan fatty acid esters such as sorbitan isostearate and sorbitan stearylate; monoglycerides such as glycerin monooleate and glycerin monostearate; glyceryl ethers such as isostearyl glyceryl ether;
Trimethylol alkanes such as trimethylol isoheptadecane and trimethylol decane; alkylalkanolamides such as isostearic acid diethanolamide and coconut oil fatty acid diethanolamide; amine oxides such as lauryl dimethylamine oxide; dimethylpolysiloxane polyoxyalkylene Polyoxyalkylene-modified silicones such as polymers (Shin-Etsu Chemical Co., Ltd., silicone KF945A, etc.); sugar esters such as alkyl glycosides, alkyl maltosides, alkyl fructosides, and the like.

The surfactant of component (B) has a hydrophilic-lipophilic balance (HL
B) Those having a value of 2 to 13, particularly 4 to 10, are preferred. H
When a surfactant having an LB value of 13 or more is used, an HLB value of 4
It is preferable to use the following surfactant having low hydrophilicity in combination from the viewpoint of the ability to form a liquid crystal.

The above surfactants may be used alone or in combination of two or more.

The fats and oils of the component (C) may be liquid or solid, for example, hydrocarbons such as liquid paraffin and petrolatum;
Higher alcohols such as stearyl alcohol and myristyl alcohol; polyoxyethylene alkyl ethers having a POE of 5 mol or less such as polyoxyethylene (3 mol) cetyl ether; higher fatty acids such as stearic acid, myristic acid and isostearic acid; octyl dodecyl myristate;
Higher fatty acid esters such as isopropyl palmitate and isopropyl myristate; benzoic acid esters such as lauryl benzoate and myristyl benzoate; animal and vegetable oils such as olive oil, jojoba oil and squalane; cholesterol fatty acid esters such as cholesteryl isostearate; Rosin derivatives such as tyroyl isostearate and abiethyloyl palmitate; silicone oils such as dimethylpolysiloxane; diglycerides such as 2-ethylhexanoic acid diglyceride, 2-ethylhexanoic acid triglyceride, oleic acid diglyceride and ricinoleic acid diglyceride; -, Tri-glyceride and the like. These can be used alone or in combination of two or more.

In addition, since the component (C) aids the formation of an aggregate along with the activator, a polar solid fat such as a higher alcohol or a higher fatty acid is preferable from the viewpoint of liquid crystal forming property when water is added. When using liquid oil, use it alone,
Preferably, the solid oil is added such that the weight ratio of the polar solid oil is about 0.5-5.

Examples of the water-soluble alcohol as the component (D) include monoalcohols such as ethanol and isopropyl alcohol; ethylene glycol, propylene glycol, and 1,2.
-Butylene glycol, 1,3-butylene glycol, 3
-Methyl 1,3-butylene glycol, dipropylene glycol, hexylene glycol, glycerin, trimethylolpropane, pentaerythritol, xylitol, sorbitol, polyols having two or more alcoholic hydroxyl groups in a molecule such as mannitol; diethylene glycol monomethyl Examples thereof include monoalkyl ethers of diethylene glycol such as ether and diethylene glycol monoethyl ether, and one or more of these can be used in combination. (A) ~
In order to dissolve the component (C) quickly and stably,
It is preferable to use a polyol having a solubility parameter in the range of 9 to 13.

The amounts of the components (A) to (D) are such that the hair treatment composition of the present invention is undiluted and becomes a transparent or translucent uniform liquid.
This is an amount that forms a liquid crystal or a gel in which the liquid crystal is dispersed when diluted with water 30 times by weight. Here, when diluted with 2 to 30 times by weight of water to form a liquid crystal or a gel in which the liquid crystal is dispersed,
Dilute with any amount of water in this range for the test tube and have anisotropy when observed between polarizing plates (liquid crystal) or anisotropic when observed under a polarizing microscope. Recognized (liquid crystal, liquid crystal dispersion).

The compositions (A) to (C) are liquid with a viscosity of 200 cps or less when no other additive such as a polymer is added. However, when the water is added to form a liquid crystal or a liquid crystal dispersion, ,Ten
Thickens from 00 to tens of thousands cps. The preferred amount of water for forming the liquid crystal or liquid crystal dispersion is 3 to 20 times by weight, particularly preferably 5 to 10 times by weight. The specific compounding amount for satisfying such conditions is that the component (A) is 0.01 to 30% in the total composition.
% By weight (hereinafter simply referred to as “%”), preferably 1 to 20%
%, Component (B) is 0.01 to 30%, preferably 5 to 20%,
(C) component is 0.01 to 30%, preferably 2 to 20%, (D)
The components are 50-95%, preferably 60-90%. If the amount of the component (C) is too large relative to the amount of the activator [(A) component + (B) component], water may be added to cause emulsification. If the amount is too small, no liquid crystal is formed. Component C) is preferably 0.01 to 3 times the weight of the activator. Further, the composition of the present invention can contain water within 20% (particularly preferably within 10%). The addition of such a small amount of water is preferable because it prevents stickiness when applying the composition of the present invention to hair and enhances the feeling of use.

The hair treatment composition of the present invention, in addition to the above essential components, if necessary, crude drugs, preservatives, pH adjusters, ultraviolet absorbers,
An antioxidant, a pigment, a fragrance, a polymer silicone, a water-soluble polymer, a bactericide, a protein derivative, and the like can be blended as long as the effects of the present invention are not impaired.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to Examples.
The present invention is not limited to these.

Examples 1 to 5 The components shown in Table 1 were taken, stirred at 70 ° C. and uniformly dissolved, and then returned to room temperature to obtain a sample. 1 g of each sample was placed in a sample bottle, diluted by adding 8 times by weight of water, and then sandwiched between polarizing plates to determine whether or not a liquid crystal phase was formed based on the presence or absence of anisotropy. Further, a specialized panelist was used to use this hair treatment composition, and the slip and moist feeling of the hair were evaluated according to the following criteria. The results are shown in Table 1.

<Evaluation criteria> ◎: Good ○: Somewhat good △: Somewhat bad ×: Bad All of the compositions of Examples 1 to 5 were uniformly dissolved, and when diluted with 8 times the amount of water, anisotropy was observed, thereby confirming that a liquid crystal phase was formed.

Examples 6 to 15 Hair treatment compositions were prepared using the components shown in Table 2 in the same manner as in Examples 1 to 5, and the presence or absence of liquid crystal formation was examined. Further, ten expert panelists used this hair treatment composition, and the slip and moist feeling of the hair were evaluated according to the following criteria. The results are shown in Table 2.

<Evaluation criteria> ◎: 7 or more evaluated as slippery and moisturized ○: 5 or more evaluated as slippery and moisturized △: Less than 5 evaluated as slippery and moisturized Examples 6 to 15 all dissolved uniformly, and had good slipperiness and moist feeling.

Examples 16 to 23 Hair treatment compositions were prepared using the components shown in Table 3 in the same manner as in Examples 1 to 6, and the presence or absence of liquid crystal formation was examined. The results are shown in Table 3.

In Examples 16 to 23, when 8 times the amount of water was added, all formed liquid crystals, giving the hair an excellent smoothness and a moist feeling.

Example 24 A hair treatment composition having the following composition was prepared, and the presence or absence of liquid crystal formation was examined in the same manner as in Example 1. In addition, a professional panelist used this hair treatment composition to evaluate the cohesiveness and moistness of the hair.

(Composition) (%) 2-decylhexadecylammonium 2.0 chloride cetyltrimethylammonium 1.0 chloride sorbitan isostearate 10.0 POE (40) hydrogenated castor oil 5.0 cetanol 5.0 isostearic acid 2.0 hexylene glycol 73 water 2.0 total 100.0 As a result, uniform and transparent Liquid was formed when water was added in the system. Further, in the use evaluation, an excellent moist feeling and unity of the hair were recognized.

Example 25 A hair treatment composition having the following composition was prepared, and the presence or absence of liquid crystal formation was examined in the same manner as in Example 1. In addition, a professional panelist used this hair treatment composition to evaluate the cohesiveness and moistness of the hair.

(Composition) (%) distearyl dimethyl ammonium 1.0 chloride 2-dodecyl tetradecyl en Moni 2.0 Umukuroraido isostearate diethanolamine 10.0 de POE (30) triisostearate glycidyl 10.0 Ceilidh cetanol 5.0 Methylphenylpolysiloxane 3.0 diethylene glycol monoethyl et 64 ether Water 5.0 Total 100.0 As a result, a liquid crystal was formed when water was added in a uniformly transparent system. Further, in the use evaluation, an excellent moist feeling and unity of the hair were recognized.

Example 25 The hair treatment compositions shown in Table 4 were prepared, and
The presence or absence of liquid crystal formation was examined in the same manner as described above. Further, a specialized panelist was used to use this hair treatment composition, and the non-stickiness and the moist feeling of the finish during use were evaluated according to the following criteria. The results are shown in Table 4.

<Evaluation criteria> ◎: Good ○: Somewhat good △: Somewhat bad ×: Bad Examples 26 to 29 were all uniform and transparent, and liquid crystal formation was observed when 8 times by weight of water was added. Furthermore, non-stickiness when suitable for hair and a moist feeling after application were recognized. Comparative Example 5 was solubilized, and the stickiness was relatively small, but no moist feeling was obtained. In Comparative Example 6, since the emulsion was emulsified, a relatively moist feeling was recognized, but there was sliminess and stickiness during use.

〔The invention's effect〕

The hair treatment composition of the present invention forms a uniform liquid crystal containing moisture of wet hair at the time of application, and has a conditioning effect such as slipping and moist feeling to effectively leave cationic surfactants and oils and fats. It has excellent aesthetics, and is transparent or translucent.

Continuation of the front page (56) References JP-A-59-21611 (JP, A) JP-A-63-270533 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A61K 7 / 00-7/50

Claims (1)

(57) [Claims] (1) The following components (A) to (D): (A) a cationic surfactant, (B) a nonionic or amphoteric surfactant, (C) fats and oils, and (D) water-soluble alcohols. A hair which is a translucent uniform liquid and contains the components (A) to (D) in an amount to form a liquid crystal or a gel in which the liquid crystal is dispersed when diluted with 2 to 30 times by weight of water. Treatment composition.