JPH0441124B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a gel-like hair rinse agent with excellent transparency. Normally, hair is covered with sebum secreted from the scalp and oil contained in hair cosmetics such as hair oil and hair cream, and is protected from mechanical stimulation by combs and brushes. However, when you wash your hair with shampoo, most of these oils and fats are removed, causing the hair to lose its smooth texture, feel dry, make it difficult to comb, and cause hair damage such as split ends and cut hair. occurs. Conventionally, in order to prevent these harmful effects of hair washing, hair rinses containing quaternary ammonium salts such as stearyltrimethylammonium chloride as a main active ingredient have been used for rinsing after washing. The hair rinse agent is generally dissolved or dispersed in warm water, and the hair is rinsed with this solution. However, in order to treat hair more effectively, it is preferable to apply the hair rinse agent directly to the hair. In this case, in order to dispense an appropriate amount of hair rinse into the palm of the hand, it is necessary that the hair rinse has a considerable viscosity so that it does not run off. In addition, general hair rinses come in two types, depending on the hair and skin type and the ingredients: transparent type and cream-like opaque type. The shapes are different. "Transparent type" hair rinses use water-soluble polymers such as hydroxyethyl cellulose as thickeners for direct application to the hair, but when added in large amounts, the rinsing effect is significantly impaired and the opposite effect occurs. However, if the amount is too small, a sufficient thickening effect cannot be obtained. The present inventors conducted studies to obtain a transparent gel-like hair rinse agent that can be applied directly to the palm of the hand to rinse hair without using such thickeners. The inventors have discovered that a hair rinse agent with good performance can be obtained by blending the compounds listed below, and have completed the present invention. That is, the present invention [In the formula, R ₁ is an alkyl group having 14 to 22 carbon atoms; R ₂ ,
R ₃ and R ₄ are each an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms; X means a halogen atom]; and (b) General formula []: [In the formula, R ₅ and R ₆ are each an alkyl group having 1 or more carbon atoms, and the total number of carbon atoms of R ₅ and R ₆ is 14 to 25; n means an integer of 1 to 5] 21 to 28 as the total weight of the compound represented by
The weight ratio []/[] of the quaternary ammonium salt containing % by weight and represented by the general formula [] to the compound represented by the general formula [] is 1/3 to 1/3.
The present invention provides a transparent gel-like hair rinse composition that is 1/1. The transparent gel-like hair rinse composition of the present invention includes:
It has a considerable viscosity without the use of conventional thickeners, does not run off when placed in the palm of your hand, and can be directly rinsed on the hair as it is, achieving an excellent rinsing effect. The fourth compound of the general formula [] is blended into the composition of the present invention.
Typical examples of grade ammonium salts include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, hydrogenated tallow alkyltrimethylammonium chloride, hydrogenated tallow alkyltrimethylammonium bromide, and one of these or Two or more types may be blended. Typical examples of compounds of the general formula [] that are other ingredients include polyoxyethylene (3) 2-hexyldecyl ether, polyoxyethylene (3) 2-heptyl undecyl ether, and polyoxyethylene (3) 2-heptyl undecyl ether.
(5) 2-decyltetradecyl ether, polyoxyethylene (5) 2-decylpentadecyl ether, polyoxyethylene (2) 2-octyl dodecyl ether, etc., and one or more of these may be blended. It's fine. The transparent gel-like hair rinse agent composition of the present invention contains the quaternary ammonium salt of the general formula [] and the compound of the general formula [] in an amount of 15 to 40% by weight, preferably 19 to 40% by weight based on the total weight of the hair rinse agent. It is blended in an amount of 30% by weight, more preferably 21 to 28% by weight. If the amount of these ingredients is less than 15% by weight, the composition will not exhibit gel properties and will be difficult to take into the palm of your hand, making it unsuitable for use. On the other hand, if it exceeds 40% by weight, the viscosity will increase significantly. This is not preferred because it becomes hard and difficult to use as a hair rinse agent. In addition, the weight ratio of the quaternary ammonium salt represented by the general formula [] to the compound of the general formula [],
In other words, []/[] is 1/3 to 1/1,
Preferably it is 1/2.6 to 1/1.2. If the weight ratio is more than 1/1 or less than 1/3, it is not preferable because it does not exhibit gel properties or becomes cloudy. Furthermore, the hair rinse composition of the present invention includes:
Appropriate oils and fats, higher alcohols, as necessary.
Humectants, fragrances, pigments, etc. may be added to the extent that they do not impair transparency. To prepare the hair rinse composition of the present invention, a quaternary ammonium salt of general formula [] and a compound of general formula [] are mixed and dissolved at 70 to 80°C, and water and water at the same temperature are mixed and dissolved. Add the mixture of other ingredients with stirring and cool to about 35°C. Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples. In addition, all % means weight %. Example 1 A hair rinse agent composition was manufactured using the formulation shown in Table 1 below. To prepare the composition, stearyltrimethylammonium chloride and 2-peptyl undecyl ether (3.EO)
Mix and dissolve at 70-80℃, add to this at 70-80℃
Add with stirring the mixture of remaining ingredients heated to 35°C and cool to 35°C. The gel properties and transparency of the obtained compositions were evaluated and the results are shown in Table 1. The criteria for each evaluation are as follows. Gel property ◎... Shows good gel property ○... Shows somewhat good gel property ×... Shows no gel property Transparency ◎... Shows good transparency ○... Shows somewhat good transparency ×...Example 2 showing cloudiness A hair rinse agent composition was produced in the same manner as in Example 1 using the formulation shown in Table 1 below.
The results are similarly shown in Table 1. Comparative Examples 1 to 3 Hair rinse agent compositions were produced in the same manner as in Example 1 using the formulations shown in Table 1 below.
The results are similarly shown in Table 1.

【table】

[Table] As is clear from Table 1, Examples 1 and 2 based on the present invention both have good gel properties and transparency, whereas Comparative Examples 1 to 3 have good gel properties and transparency. There is nothing that satisfies both transparency and transparency. Examples 3 to 9 Hair rinse agent compositions were produced in the same manner as in Example 1 using the formulations shown in Table 2 below.
The results are also shown in Table 2. Comparative Examples 4 and 5 In the same manner as in Example 1, hair rinse compositions were produced using the formulations shown in Table 2 below.
The results are similarly shown in Table 2.

[Table] As is clear from Table 2, when the []/[] weight ratio is 1/3 to 1/1, good gel properties and transparency are exhibited. Example 10 Ingredients Amount (%) Stearyltrimethylammonium chloride 8.0 Behenyltrimethylammonium chloride 2.0 2-heptyl undencyl ether (5EO) 15.0 Isopropyl myristate 1.0 Propylene glycol 5.0 Glycerin 10.0 Fragrance Appropriate amount Colorant Appropriate amount Water 59.0 At the above amount, A hair rinse composition was prepared in the same manner as in Example 1. The resulting rinse agent had a transparent gel-like appearance and could be used to effectively rinse hair. Example 11 Component Amount (%) Cetyltrimethylammonium chloride 5.0 Stearyltrimethylammonium chloride
8.0 Oleyl ether (5EO) 13.0 Oleyl alcohol 2.0 Glycerin 12.0 Perfume Appropriate amount Pigment Appropriate amount Water 60 A hair rinse composition was prepared in the same manner as in Example 1 using the above blending amounts. The resulting rinse agent had a transparent gel-like appearance and could be used to effectively rinse hair.

Claims (1)

[Claims] 1 (a) General formula []: [In the formula, R ₁ is an alkyl group having 14 to 22 carbon atoms; R ₂ ,
R ₃ and R ₄ are each an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms;
X means a halogen group] One or two quaternary ammonium salts represented by
more than one species, and (b) general formula []: [In the formula, R ₅ and R ₆ are each an alkyl group having 1 or more carbon atoms, and the total number of carbon atoms of R ₅ and R ₆ is 14 to 25; n means an integer of 1 to 5] The weight ratio of the quaternary ammonium salt containing 21 to 28% by weight of the compound represented by the general formula [] and the compound represented by the general formula [] []/ A transparent gel-like hair rinse composition characterized in that [] is 1/3 to 1/1.