JPH04247015A - Hair rinse agent composition - Google Patents

Abstract

PURPOSE:To obtain a hair rinse composition, capable of remarkably improving sliminess and spread in use and excellent in conditioning effects on hair by including specific amounts of a betaine group-containing siloxane compound and a quaternary ammonium salt therein. CONSTITUTION:A hair rinse composition is obtained by including 0.1-3wt.% compound expressed by formula I [R<1> is 1-18C monofunctional hydrocarbon; R<2> is same as R<1>, etc.; (m) and (n) are 0-1000] and 0.3-6wt.% compound expressed by formula II (one or two of R to R<8> are 12-24C long-chain alkyl and the rest are 1-3C alkyl or benzyl; X is halogen). The aforementioned composition is preferably prepared by blending both essential ingredients at (2:1) to (6:1) weight ratio of the compounds expressed by formula I: formula II.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair rinse agent, and more particularly to a hair rinse agent composition that significantly improves the sliminess and spreadability during use and has excellent hair conditioning effects.

0002

[Prior Art and Problems to be Solved by the Invention] In order to remove dirt from the hair, when hair is washed with a shampoo containing an anionic surfactant as a main ingredient, in addition to the dirt from the hair, the oil that protects the hair surface Hair is also removed at the same time, causing the hair to lose its flexibility, resulting in lackluster hair that is difficult to comb, and prone to hair damage, split ends, and hair breakage.

[0003] Therefore, in order to prevent these adverse effects, hair rinse agents containing a quaternary ammonium salt, which is a cationic surfactant, as an active ingredient are used.

[0004] The purpose of this hair rinse agent is to impart conditioning effects (softness, moisturizing feeling, smoothness, and combability) to the hair, but quaternary ammonium salt alone does not provide flexibility, A sufficient effect cannot be obtained regarding smoothness. Therefore, in order to improve these drawbacks, it has been proposed to incorporate higher alcohols, glycerides, oils and fats such as liquid paraffin, silicone oil, or hydrocarbon-based amphoteric surfactants into conventional hair rinses. .

[0005] However, the reality is that none of these methods can provide satisfactory hair smoothness, slimy feel during use, and feeling of use such as spreadability.

[0006]The inventors of the present invention, as a result of intensive studies to solve the above-mentioned problems of the prior art, have discovered the method disclosed in the previously filed Japanese Patent Application No. 1-269897 entitled ``Betaine Group-Containing Siloxane Compound and Method for Producing the Same''. A hair rinse agent containing as essential components an appropriate amount of a surfactant (general formula (A) described below) and a quaternary ammonium salt represented by general formula (B) described below can achieve the above object. They discovered this and completed the present invention.

[0007] That is, the object of the present invention is to provide excellent hair conditioning effects (softness, moisturizing, smoothness,
It is an object of the present invention to provide a hair rinse composition that has good combability) and greatly improves the feeling of use (slimy feeling, spreadability).

[0008]

[Means for Solving the Problems] In order to achieve the above object, the hair rinse agent composition of the present invention has the following structure. That is, general formula (A)

[Chemical formula 5] [However, R1 is the same or different substituted or unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms, and R2 is the same as R1 or the following formula

[Chemical formula 6] (However, R3 is a divalent hydrocarbon group having 1 to 10 carbon atoms, R
4 is an alkyl group having 1 to 3 carbon atoms or

embedded image x and y are each integers of 1 to 3. ), the remainder is the same or different substituted or unsubstituted hydrocarbon group having 1 to 18 carbon atoms, and m and n are integers of 0 to 1000. ] 0.1 to 3 wt% of a betaine group-containing siloxane compound represented by the general formula (B)

[In the formula, 1 to 2 of R5, R6, R7, and R8]
Each represents a long-chain alkyl group having 12 to 24 carbon atoms, the remainder represents an alkyl group or benzyl group having 1 to 3 carbon atoms, and X represents a halogen atom. ] The gist thereof is to contain 0.3 to 6 wt% of a quaternary ammonium salt represented by the following formula.

The betaine group-containing siloxane compound represented by the general formula (A) in the present invention can be produced, for example, as follows. That is, in a 1-liter flask equipped with a thermometer, stirrer, and reflux condenser, the following average composition formula is prepared.

400 g (0.23 mol) of a siloxane compound having
N-methylaminoethanol 169g (2.25mol)
, and 200 g of isopropanol, and heated under reflux for 6 hours.
Allowed time to react. Next, the low boiling point components in this reaction solution were distilled off under reduced pressure at 80° C./4 mmHg over 4 hours. The reaction product thus obtained (siloxane compound) was heated at 25°C.
The viscosity was 2932 cs, the specific gravity was 1.044, the refractive index was 1.4493, and the amine equivalent was 392 g/mol.

Next, 200 g (0.09 mol) of the siloxane compound obtained in the above reaction, 54 g (0.46 mol) of monochloroacetic acid sodium salt dissolved in 130 g of water,
and 186 g of 1,2-propylene glycol were placed in a 1 liter flask and reacted at 100°C with stirring for 12 hours to form the following composition formula:

A water-propylene glycol solution of a betaine group-containing siloxane compound having the following formula was obtained.

A 0.1% aqueous solution was prepared from the siloxane compound having the above average composition formula, and the surface tension at 20° C. was measured to be 29.0 dyne·cm −1 .

[0012] The average molecular weight 1 expressed by the above compositional formula
Propylene glycol (31%
) and water (22%) is abbreviated as composition (a).

[0013] Also, by the same manufacturing method, an average molecular weight of 2
400, propylene glycol (30%
) and water (20%) is abbreviated as composition (b).

Furthermore, propylene glycol (30%) of a betaine group-containing siloxane compound with an average molecular weight of 920 and an amount of betaine groups (pieces/1 molecule) of 2 was prepared by the same manufacturing method.
and water (20%) solution is abbreviated as composition (c).

[0015] One or a mixture of two or more of the above compositions (a) to (c) is contained in an amount of 0.1 to 3 wt% based on the total amount.
, preferably 0.1 to 2 wt%. If the blending amount is less than 0.1 wt%, good hair conditioning effects, slimy feeling during use, and good spreadability cannot be obtained.
If it exceeds 3 wt%, the hair becomes sticky, which is not preferable.

[0016] The above-mentioned cationic surfactants may be used singly or as a mixture of two or more thereof, and all those that can be blended into ordinary hair rinses and the like can be used. Examples include distearyldimethylammonium chloride, stearyltrimethylammonium chloride, stearyldimethylbenzylammonium chloride, cetyltrimethylammonium chloride, behenyltrimethylammonium chloride, and the like.

The hair rinse agent composition of the present invention contains 0.3 to 6 wt%, preferably 0.3 to 6 wt%, based on the total amount, of one or a mixture of two or more of these cationic surfactants.
It is blended in an amount of 5 to 4 wt%. If the amount is less than 0.3 wt%, good hair conditioning effects will not be obtained, and if it exceeds 6 wt%, the hair will become sticky, which is undesirable.

The hair rinse agent composition of the present invention has the above-mentioned two components as essential components, and the blending weight ratio of these two components (A) and (B) is (A):( B)
=2:1 to 6:1 is preferred. Further, other components may be appropriately blended into the composition within a range that achieves the object of the present invention.

Namely, hydrocarbons such as liquid paraffin, vaseline, and squalane, ester oils such as isopropyl myristate and isopropyl palmitate, vegetable oils such as camellia oil, olive oil, and avocado oil, polyglycerin fatty acid esters, and polyoxyethylene sorbitan monolayers. nonionic surfactants such as esters, cellulose derivatives such as methyl cellulose, hydroxyethyl cellulose, and cationized cellulose, humectants such as ethylene glycol, propylene glycol, and glycerin, polypeptides, other disinfectants, dandruff removers, chelating agents, and ultraviolet rays. Examples include absorbers, colorants, fragrances, etc., and one or more of these can be blended.

[0020]

[Examples] The present invention will be explained below with reference to Examples. still,
The test method used in this example is as follows.

[0021] Feeling of use (slimy feeling, spreadability) and hair conditioning effect. A panel of 20 female experts sensually compared the ``sliminess'', ``spreadiness'', ``hair flexibility'', ``moist feeling'', ``hair smoothness'', and ``combability'' in each example. The results were evaluated using the following criteria. ◎; If 18 or more people answered good, ○;
〃 If there are 14 to 17 people, △;
If there are 8 to 13 people×;
If 〃 is 7 or less people

[0022]
Examples 1 to 5, Comparative Examples 1 to 4 Hair rinses having the formulations shown in Tables 1 to 4 were prepared in a conventional manner, and the effects of each essential ingredient were examined. The results are shown in the lower row of Tables 1 to 4. show.

Looking at Tables 1 to 4, it can be seen that the hair rinse compositions of the present invention all exhibit excellent performance.

[0024]

[Effects of the Invention] As described above, the present invention has hair conditioning effects (softness, moisturizing, smoothness,
It is clear that a useful hair rinse composition with excellent combability) and feel (slimy feel, spreadability) is provided.

[Table 1]

[Table 2]

[Table 3]

[Table 4]

Claims (1)

[Claims] Claim 1: General formula (A) [Formula 1] [However, R1 is the same or different substituted or unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms, and R2 is the same as R1 or the following formula [Formula 2] ] (However, R3 is a divalent hydrocarbon group having 1 to 10 carbon atoms, R
4 is an alkyl group having 1 to 3 carbon atoms, or [Image Omitted] x and y are each an integer of 1 to 3. ), the remainder is the same or different substituted or unsubstituted hydrocarbon group having 1 to 18 carbon atoms, and m and n are integers of 0 to 1000. ] 0.1 to 3 wt% of a betaine group-containing siloxane compound represented by the general formula (B) [In the formula, 1 to 2 of R5, R6, R7, and R8
Each represents a long-chain alkyl group having 12 to 24 carbon atoms, the remainder represents an alkyl group or benzyl group having 1 to 3 carbon atoms, and X represents a halogen atom. A hair rinse composition comprising 0.3 to 6 wt% of a quaternary ammonium salt represented by the following formula.