KR101413804B1 - Hair-treating agent - Google Patents

Abstract

An object of the present invention is to provide a hair treatment agent which suppresses stiffness of the feel of hair and is excellent in softness.
The hair treatment agent is mixed with dimethylpolysiloxane and volatile silicone having a viscosity of 4000 mPa s or more when 15 mass% of Baobab seed oil or decamethylcyclopentasiloxane is contained in the hair treating agent.

Description

Hair treatment agent {HAIR-TREATING AGENT}

The present invention relates to a hair treatment agent which can be excellent in softness of hair.

The hair is damaged by styling using a hair dryer, hair color treatment, permanent wave treatment, or the like. In order to improve the feel of the hair, the hair is generally treated with a hair care agent.

The treatment with a hair care agent in a non-washed state is particularly effective in improving the feeling of the hair which is greatly damaged. In this context, various non-washed hair care compositions have been proposed. For example, Patent Document 1 discloses that polymer silicon, low-molecular-weight silicon, decamethylcyclopentasiloxane and camellia oil are blended (see Claim 1, Example 1, etc.). Patent Document 2 discloses that a predetermined dimethylpolysiloxane, a hydrocarbon oil having a melting point of 30 占 폚 or higher, and a volatile emulsifier are blended with each other to have good fusion property to hair than the one disclosed in Patent Document 1 1, paragraph 0003, etc.).

[Patent Document 1] Japanese Patent Application Laid-Open No. 2005-206467 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-174496

However, when dimethylpolysiloxane having a high degree of polymerization is blended into a hair care agent, the hair tends to become stiff as the degree of polymerization increases. The hair may become stiff due to the damage it receives. Therefore, there is a case where it is required to avoid the stiffness of the feeling by the hair care agent containing the high-polymerized dimethylpolysiloxane. In other words, there is a case where hair care which can be made into hair with excellent softness is desired, and this demand exists also in a hair treating agent such as a styling agent other than the hair care agent.

It is an object of the present invention to provide a hair treatment agent which suppresses the stiffness of the hair in consideration of the above circumstances, and is excellent in softness.

As a result of intensive studies by the present inventors, it has been found that when a specific dimethylpolysiloxane is selected and then Baobab seed oil is further blended in a hair treatment agent containing a dimethylpolysiloxane having a high degree of polymerization and volatile silicone capable of diluting and dissolving it, And the present invention has been accomplished. Further, according to the present invention, it was also found that the stickiness was suppressed.

That is, the hair treatment agent according to the present invention is characterized by incorporating the following components (A) to (C).

(A) Baobab seed oil

(B) Dimethylpolysiloxane having a viscosity of not less than 4000 mPa.s when 15 mass% is contained in decamethylcyclopentasiloxane

(C) volatile silicon

The component (B) may be a dimethylpolysiloxane having a viscosity of 10,000 mPa s or less when it is contained in 15 mass% of decamethylcyclopentasiloxane.

The hair treatment agent according to the present invention is preferably used, for example, as a hair care agent, and is preferably used in a non-washed state. When used as a hair care agent that is not washed, it may be a non-aqueous one.

It is preferable that the hair treating agent according to the present invention is further formulated with dimethicone (component (D)). When the component (D) is compounded, the softness of the hair is further improved.

According to the hair treatment agent of the present invention, not only the specific dimethylpolysiloxane and volatile silicone are blended but also Baobab seed oil is further blended, so that the softness of the hair is excellent.

The present invention will be described below based on a hair treatment agent of an embodiment of the present invention.

The hair treatment agent of the present embodiment is one comprising the following components (A) to (C) as essential components. The hair treatment agent of the present embodiment may be a mixture of raw materials to be blended with a known hair treatment agent as an optional component.

(A) Baobab seed oil

(B) a predetermined dimethylpolysiloxane

(C) volatile silicon

[(A) Baobab seed oil]

Baobab seed oil (name of International Nomenclature Cosmetic Ingredients: ADANSONIA DIGITATA SEED OIL), which is a component (A), is a liquid oil at 25 ° C obtained from baobab seeds. In order to obtain this baobab seed oil, for example, the seed of baobab may be squeezed.

The blending amount of Baobab seed oil as the component (A) in the hair treatment agent of the present embodiment is, for example, 0.003 mass parts or more and 0.2 mass parts or less with respect to 1 mass part of the component (B), and 0.005 mass parts or more and 0.02 mass parts or less good.

[(B) a predetermined dimethylpolysiloxane]

The predetermined dimethylpolysiloxane as the component (B) has a viscosity of 4000 mPa · s or more when it is contained in 15 mass% of decamethylcyclopentasiloxane. The component (B) preferably has a viscosity of 10,000 mPa · s or less, preferably 9,000 mPa · s or less, and more preferably 8,000 mPa · s or less. If the viscosity is 10000 mPa.s or less, it is particularly advantageous to make soft hair.

The viscosity when the component (B) was contained in 15 mass% of decamethylcyclopentasiloxane was measured by using a B-type viscometer at 25 ° C, rotor No. 4, rotor rotation number 60 rpm, Value.

Examples of the dimethylpolysiloxane as the component (B) include a straight-chain type highly polymerized dimethylpolysiloxane represented by the following formula (I).

[In the formula (I), n represents an average degree of polymerization of at least 650.]

The component (B) is also commercially available as a mixture with decamethylcyclopentasiloxane. Quot; KF-9014 " manufactured by Shin-Etsu Chemical Co., Ltd., and Moment (manufactured by Shin-Etsu Chemical Co., Ltd.) as the commercially available products [having a dimethylpolysiloxane content of 15% by mass and a content of decamethylcyclopentasiloxane of 85% &Quot; XF49-601 " and " XF49-A3818 " manufactured by Shin-Etsu Chemical Co., Ltd., Japan Performance Performance Materials Co.,

In the hair treatment agent of the present embodiment, one or two or more components (B) are blended. The blending amount of the component (B) in the hair treatment agent of the present embodiment is not particularly limited. When the hair treating agent of the present embodiment is used in a non-washed state, the blending amount of the component (B) is, for example, 2% by mass or more and 10% by mass or less.

[(C) Volatile Silicon]

The volatile silicone as the component (C) is a volatile linear dimethylpolysiloxane and a volatile cyclic silicone which can dilute and dissolve predetermined dimethylpolysiloxane as the component (B).

Examples of the volatile straight-chain dimethylpolysiloxane include dimethylpolysiloxane represented by the following formula (II).

[In the formula (II), x represents, for example, 1 or more and 3 or less.]

The specific straight-chain dimethylpolysiloxane represented by the above formula (II) is octamethyltrisiloxane, decamethyltetrasiloxane, and dodecamethylpentasiloxane.

Examples of the volatile cyclic silicone include cyclic silicon represented by the following formula (III).

[In the formula (III), y represents an integer of 4 or more and 6 or less, for example.]

The specific cyclic silicone represented by the formula (III) is octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane.

One or two or more components (C) are blended in the hair treatment agent of the present embodiment. The blending amount of the volatile silicone as the component (C) is not particularly limited. When the hair treating agent of the present embodiment is used in a non-washed state, the amount of the component (C) is, for example, 50% by mass or more.

(Optional component)

The optional ingredients to be blended in the hair treatment agent of the present embodiment are appropriately selected in accordance with the use and purpose of the hair treatment agent since they are known as hair treatment agent components. Examples of the optional components include a cationic surfactant, a nonionic surfactant, an alcohol, a polyhydric alcohol, a saccharide, an ester oil, a fat other than the component (A), fatty acids, hydrocarbons, beeswax, silicones other than the components (B) , Polymer compounds, amino acids, plant and animal extracts, microbial derivatives, inorganic compounds, fragrances, preservatives, sequestering agents and ultraviolet absorbers.

When the dimethiconol (D) component is blended, the feel of the hair becomes smoother. The blending amount of the component (D) in the hair treatment agent of the present embodiment is preferably 0.5 parts by mass or less, more preferably 0.01 parts by mass or more and 0.4 parts by mass or less based on 1 part by mass of the dimethylpolysiloxane corresponding to the component (B) Do.

When the hair treatment agent of the present embodiment is used as a hair treatment agent in a state of not being washed, it may be a non-aqueous hair treatment agent which does not contain water. The O / W emulsion in which water is blended and the components (A) to (C) are blended in the water phase, or W / O emulsion in which the components (A) to It may be an emulsion.

(Usage)

The hair treatment agent of the present embodiment is used for various hair treatments such as a styling agent and a hair care agent by appropriately blending optional ingredients. Here, the " styling agent " is a hair treatment agent used for temporarily maintaining a hair shape. The "hair care agent" is a hair treatment agent used to treat and treat hair, and includes, for example, rinses, conditioners, treatments (for example, non-washed treatments, wash treatments, Treatment for pre-treatment of permer, treatment for intermediate treatment of permer, treatment for post-treatment of permer, treatment for pretreatment of coloring, treatment for post-treatment of coloring, pretreatment of bridge Treatments for post-treatment of bridges).

The hair treatment agent of the present embodiment is suitably used as a hair care agent. It is possible to realize a feeling of hair having excellent flexibility even when used as a non-washed treatment (hair oil, hair cream, foam type treatment, mist type treatment and the like).

Example

Hereinafter, the present invention will be described in detail on the basis of examples, but the present invention is not limitedly interpreted based on the description of this example.

The hair treatment agents of Examples and Comparative Examples were prepared and subjected to hair treatment with these hair treatment agents to evaluate each hair treatment agent. The details are as follows.

(Hair treatment agent)

As the hair treating agents of Examples and Comparative Examples, a non-aqueous hair treatment agent having the composition shown in the following Table 1 or Table 2 was prepared.

(Hair treatment)

The hair which had not been washed with the oxidative hair dye was collected from a general female, and hair treatment agent of any one of Examples and Comparative Examples was washed for hair bundles (about 20 cm in length and about 3 g in mass) Treatment as a hair care agent. Before this treatment, the hair was treated with a shampoo ("DEESSE'S NEU WillowLuxe" manufactured by Mirubon) and a treatment ("DEESSE'S NEU WillowLuxe" manufactured by Mirborn), and the hair was sufficiently wiped with a towel, 0.1 g was fused and the mother louse was dried with hot air.

(Evaluation of hair treatment agent)

As the evaluation of the hair treatment agent, sensory evaluation was performed on "softness" and "tackiness inhibition" in the hair.

Evaluation of "softness"

The softness of the hair-treated hair was evaluated by eight evaluators. In the evaluation, the criterion was set and the smoothness compared with the standard was scored and the score of eight was added. The criteria are as in Example 1 in Example 1, Comparative Example 1a to Comparative Example 1d, and Example 2b in Examples 2a to 2d shown in Table 2 below. The score setting in the evaluation was as follows.

2 points: I felt softer than the standard.

1 point: I felt a little softer than the standard.

0 point: The texture was equivalent to the standard.

-1 point: I felt slightly stiffer than the standard.

-2 points: I felt stiffer than the standard.

Evaluation of "stickiness inhibition"

The criteria for the presence or absence of stickiness in the hair-treated hair were set and evaluated. The criteria are as in Example 1 in Example 1, Comparative Example 1a to Comparative Example 1d, and Example 2b in Examples 2a to 2d shown in Table 2 below. In addition, evaluation was performed as follows (evaluation was not performed for Comparative Example 1d).

-: Equivalent to the standard.

X: I felt sticky than the standard.

The composition of the hair treatment agents of the examples and comparative examples and the evaluation results of these hair treatment agents are shown in the following Tables 1 to 2.

In Table 1, it can be confirmed that when either of the components (A) and (B) is insufficient, both of the excellent softness and the stickiness suppression in combination with the component (C) are disadvantageous.

It can be confirmed from the comparison between Example 2c in Table 2 and Example 2d to Example 2e that dimethiconol as the component (D) is blended to further improve the softness.

Claims (6)

A hair treatment agent characterized in that (A) to (C) are blended and decamethylcyclopentasiloxane is blended as the following (C):
(A) Baobab seed oil
(B) Dimethylpolysiloxane having a viscosity of not less than 4000 mPa.s when 15 mass% is contained in decamethylcyclopentasiloxane
(C) Volatile silicon. The hair treatment agent according to claim 1, wherein the (B) is a dimethylpolysiloxane having a viscosity of not more than 10,000 mPa s when 15 mass% is contained in decamethylcyclopentasiloxane. The hair treatment agent according to claim 1 or 2, which is used as a hair care agent. The hair treatment agent according to claim 3, which is used in a non-washed state. The hair treatment agent according to claim 4, which is a non-aqueous system. 3. The hair treatment agent according to claim 1 or 2, wherein (D) dimethicone is formulated.