JP7597359B2 - Hair conditioning composition - Google Patents

Description

The present invention relates to a hair conditioning composition that has good finger smoothness and moisturizing feeling even without containing amino-modified silicone, and can give hair a bouncy and stiff feel without impairing the hair conditioning effect.

In recent years, with the diversification of hairstyles, consumers have begun to regularly dye and perm their hair to achieve the look they desire. However, when dyeing or perming hair, the chemicals used can cause the lipid layer on the surface of the hair to disappear, making it harder to slide through with your fingers, making it feel squeaky, and making it difficult to manage. In addition, the interstitial substance inside the hair can leak out, causing problems such as a loss of firmness and strength.

In addition, daily brushing and combing can also wear down the cuticle, increasing friction and causing dryness and a lack of lubricity. Furthermore, a loss of hair firmness due to aging and other factors can often be an issue. For this reason, hair rinses and hair conditioning compositions are now required to provide not only higher conditioning effects such as smoothness and moisturizing, but also firmness and elasticity.

In recent years, there has been an increase in hair conditioning compositions that contain amino-modified silicones, which are excellent at providing a moist feeling, softness, and smooth feel to the fingers. Because amino-modified silicones have cationized amino groups, they have a higher adsorption power to hair than dimethicone, and can be expected to provide a long-lasting conditioning effect.

On the other hand, excessive use of amino-modified silicone can make the hair feel sticky or slimy, and it can also have drawbacks such as the color not penetrating easily due to its high affinity and coating power with hair, and it can be difficult to perm. There is also the problem that regular long-term use can make the hair feel heavy and less bouncy.

A technology that can impart bouncy feel to hair has been disclosed (Patent Document 1), but it does not improve the moist feeling, and because it contains amino-modified silicone, it may become difficult to feel bouncy feel with long-term use. Another technology that can impart moist feel to hair has been disclosed (Patent Document 2), but it does not improve the bouncy feel, and because it also contains amino-modified silicone, there is concern that the bouncy feel may decrease with long-term use.

Patent Publication 2013-23478 Patent Publication No. 2020-125257

The objective of the present invention is to provide a hair conditioning composition that has good finger smoothness and moisturizing properties even without containing amino-modified silicone, and can give hair a bouncy and stiff feel without impairing the hair conditioning effect.

The composition contains 0.5 to 4% by weight of a cationic surfactant and a higher alcohol having 16 to 22 carbon atoms in a weight ratio of (higher alcohol having 16 to 22 carbon atoms)/(cationic surfactant)=1 to 3,
The following components (A) to (E):
(A) Oil that is liquid at 25°C, excluding silicone oil (B) Cationic guar gum (C) Polyquaternium-48 0.5 to 3% by weight
The hair conditioning composition comprises (D) a highly polymerized silicone having no amino group and a kinetic viscosity of 10,000 mm ² /s or more at 25°C; and (E) a low-viscosity silicone having no amino group and a kinetic viscosity of 500 mm ² /s or less at 25°C, wherein the weight ratio (E)/(D) of component (D) to component (E) is 1.5 to 2.1, and the composition does not contain any silicone having an amino group.

The present invention also provides a hair conditioning composition having a content of 0.05 to 4% by weight of component (A) oil that is liquid at 25°C, excluding silicone oil.

The present invention also provides a hair conditioning composition containing component (B) cationic guar gum in an amount of 0.05 to 2% by weight.

The present invention also provides a hair conditioning composition having a total content of 2 to 5% by weight of component (D) a highly polymerized silicone having no amino group and having a kinetic viscosity at 25°C of 10,000 ^mm2 /s or more and (E) a low-viscosity silicone having no amino group and having a kinetic viscosity at 25°C of 500 ^mm2 /s or less.

The hair conditioning composition of the present invention is excellent in terms of finger slipperiness and moisturizing feeling even without containing amino-modified silicone, and is excellent in terms of giving hair a bouncy and stiff feel without impairing the hair conditioning effect.

The present invention is a commonly used hair conditioning composition that contains 0.5-4% by weight of a cationic surfactant and a higher alcohol having 16-22 carbon atoms, with the weight ratio (higher alcohol having 16-22 carbon atoms)/(cationic surfactant) being in the range of 1-3.

In the present invention, examples of oils that are liquid at 25°C, excluding silicone oil (Component (A)), include hydrocarbon oils such as liquid paraffin, hydrogenated polyisobutene, and squalane; triglycerides such as olive oil and macadamia nut oil; ester oils such as octyldodecyl myristate and isononyl isononanoate; and branched or unsaturated higher alcohols such as isostearyl alcohol and oleyl alcohol. These liquid oils may be contained alone or in combination with one or more other oils. Among these, from the standpoint of moisturizing feeling and stability over time, hydrocarbon oils such as liquid paraffin, hydrogenated polyisobutene, and squalane are preferred. In the present invention, liquid means having fluidity at 25°C.

The amount of component (A) is not particularly limited, but is preferably 0.05 to 4% by weight based on the total weight of the hair conditioning composition.

An example of the cationic guar gum (component (B)) used in the present invention is guar hydroxypropyltrimonium chloride, which is guar gum converted to a quaternary ammonium salt. Commercially available products include "Labor Gum CG-M" (manufactured by DSP Gokyo Food & Chemical Co., Ltd.).

The content of component (B) cationic guar gum is not particularly limited, but is preferably 0.05 to 2% by weight based on the total weight of the hair conditioning composition.

Component (C) Polyquaternium-48 in the present invention is a polymer of a quaternary ammonium salt consisting of ethyl methacrylate betaine, 2-hydroxyethyl methacrylate, and ethyl methacrylate trimethylammonium chloride. Commercially available products include "Plussize L-450W" (manufactured by GOO Chemical Industry Co., Ltd.). (Polyquaternium-48: 40%)

The content of component (C) polyquaternium-48 is preferably 0.5 to 3% by weight, more preferably 1 to 2% by weight. If the content is less than 0.5% by weight, it is not preferable because sufficient firmness cannot be obtained. On the other hand, if the content exceeds 3% by weight, it may be felt as stickiness or an unpleasant squeaking sensation rather than firmness, and it may be difficult to obtain a smooth feel.

In the present invention, the component (D) in the form of a highly polymerized silicone having a kinetic viscosity of 10,000 mm ² /s or more at 25°C and no amino group (hereinafter referred to as highly polymerized silicone) may be one or more compounds selected from the group consisting of highly polymerized dimethicone having no amino group, highly polymerized dimethiconol having no amino group, and polymers having dimethicone as a part of the monomer. Commercially available products include "Silicone KF96H/100,000 CS" (manufactured by Shin-Etsu Chemical Co., Ltd.), "Silicone KF96H/1,000,000 CS" (manufactured by Shin-Etsu Chemical Co., Ltd.), and "BELSIL GB 5150" (manufactured by Wacker Asahi Kasei Silicone Co., Ltd.) (highly polymerized methylpolysiloxane: 20%). Among these, a kinetic viscosity of 50,000 to 300,000 mm ² /s at 25°C is preferred in terms of finger sliding. The kinetic viscosity in the present invention is measured by the test method of JIS K2283.

Examples of the component (E) in the present invention, a low-viscosity silicone having a kinetic viscosity of 500 mm ² /s or less at 25°C (hereinafter referred to as low-viscosity silicone), include low-viscosity dimethicone and low-viscosity methylphenyl polysiloxane that do not have an amino group. Commercially available products include "SH200 C Fluid 30CS" (manufactured by Dow Toray Co., Ltd.), "Silicone KF-50-100CS" (manufactured by Shin-Etsu Chemical Co., Ltd.), and "SH200 C Fluid 350CS" (manufactured by Dow Toray Co., Ltd.). Among these, a kinetic viscosity of 200 to 400 mm ² /s at 25°C is preferred in terms of moist feeling.

The weight ratio (E)/(D) of component (D) to component (E) is preferably 1.5 to 2.1, and more preferably 1.7 to 1.9. If the value of (E)/(D) is less than 1.5, it is not preferable because a sufficient moist feeling may not be obtained. On the other hand, if it exceeds 2.1, it is not preferable because it may feel sticky.

The total content of components (D) and (E) in the present invention is not particularly limited, but is preferably 2 to 5% by weight, more preferably 3 to 4% by weight, based on the total weight of the hair conditioning composition.

The present invention can contain ingredients such as oils and fats, waxes, hydrocarbons, fatty acids, alcohols, esters, surfactants, pH adjusters, preservatives, fragrances, moisturizers, powders, UV absorbers, thickeners, pigments, antioxidants, chelating agents, and coating agents, which are used in cosmetics, quasi-drugs, medicines, and foods, within the scope of the invention that does not impair its effects.

The present invention will be specifically explained below with reference to examples, but the technical scope of the present invention is not limited to these examples. All contents are expressed in weight percent unless otherwise specified.

Hair conditioning compositions having the compositions shown in Tables 1 to 3 below were prepared, and a panel of 15 female experts used each hair conditioning composition and evaluated it in terms of "smoothness with fingers,""resilience,""non-squeakiness,""stickiness," and "moisturizing feeling" after drying. The evaluation criteria are as follows.
"Slipping fingers"
(Evaluation Criteria)
A panel of 15 female experts judged the ease with which the hair was dried with the fingers to be smooth on a two-level scale of "good" or "bad," and evaluated the results according to the following criteria.
⊚: 12 or more persons evaluated that the finger sliding was good.
○: 8 to 11 people evaluated that the finger sliding was good.
△: 4 to 7 people evaluated that the finger glide was good.
×: Three or fewer people evaluated that the finger sliding was good.
"Firmness"
(Evaluation Criteria)
A panel of 15 female experts judged the bounciness of hair after drying on a two-level scale of "yes" or "no," and evaluated according to the following criteria.
◎: More than 12 people rated the product as having firmness and elasticity.
○: 8 to 11 people rated the product as having firmness and elasticity.
△: 4 to 7 people rated it as having firmness and elasticity.
×: Three or fewer people rated the skin as having firmness and elasticity.
"No creaking"
(Evaluation Criteria)
A panel of 15 female experts judged the feeling of squeaking of hair after drying on a two-level scale of "yes" or "no," and evaluated according to the following criteria.
⊚: 12 or more people evaluated that there was no creaking sensation.
○: 8 to 11 people rated that there was no creaking sensation.
△: 4 to 7 people rated that there was no creaking sensation.
×: Three or fewer people evaluated that there was no creaking sensation.
"Sticky"
(Evaluation Criteria)
A panel of 15 female experts judged the stickiness of the hair after drying on a two-level scale of "yes" or "no," and evaluated according to the following criteria.
⊚: 12 or more people evaluated that there was no sticky feeling after drying.
○: 8 to 11 people evaluated that there was no sticky feeling after drying.
△: 4 to 7 people evaluated that there was no sticky feeling after drying.
×: Three or fewer people evaluated that there was no sticky feeling after drying.
"Moisturizing"
(Evaluation Criteria)
A panel of 15 female experts judged the moist feeling of the hair after drying on a two-level scale of "yes" or "no," and evaluated according to the following criteria.
◎: 12 or more people rated it as having a moist feeling.
○: 8 to 11 people rated it as having a moist feeling.
△: 4 to 7 people rated it as having a moist feeling.
×: Three or fewer people rated it as having a moist feeling.

(Production method)
A cationic surfactant, a higher alcohol having 16 to 22 carbon atoms, and a liquid oil at 25°C, excluding component (A) silicone oil, were heated and dissolved, and then an aqueous phase containing component (B) cationized guar gum heated to 80°C was added and emulsified, and then component (C) polyquaternium-48, (D) highly polymerized silicone, and (E) low viscosity silicone were added and dispersed using a homomixer. The mixture was then cooled to obtain a hair conditioning composition.

*1 Catinal STC 70ET (manufactured by Toho Chemical Industry Co., Ltd.)
*2 Cetyl Alcohol NX (manufactured by Kokyu Alcohol Kogyo Co., Ltd.)
*3 Flow Para #70 (manufactured by Sonneborn)
*4 NIKKOL Macadamia Nut Oil (manufactured by Nikko Chemicals Co., Ltd.)
*5 Labo Gum CG-M (manufactured by DSP Gokyo Food & Chemical Co., Ltd.)
*6 Plussize L-450W (manufactured by GOO Chemical Industry Co., Ltd.) (Polyquaternium-48: 40%)
*7 Silicone KF96H/100,000CS (Shin-Etsu Chemical Co., Ltd.)
*8 SH200 C Fluid 350CS (manufactured by Dow Toray Industries, Inc.)

As shown in Examples 1 to 9 in Table 1, when component (A) an oil that is liquid at 25°C, excluding silicone oil, was included, satisfactory results were obtained in all items. Furthermore, when component (A) an oil that is liquid at 25°C, excluding silicone oil, was included in an amount of 0.05 to 4% by weight, particularly excellent results were obtained. On the other hand, as shown in Comparative Example 1, when component (A) an oil that is liquid at 25°C, excluding silicone oil, was not included, satisfactory results were not obtained in the items of finger slippage, non-squeakiness, and moist feeling. Furthermore, as shown in Comparative Example 2, when petrolatum was used instead of an oil that is liquid at 25°C, excluding silicone oil, satisfactory results were not obtained in the items of finger slippage and stickiness.

*9 Leoguard GP (manufactured by Lion Corporation)
*10 Metrose 65SH 4000 (manufactured by Shin-Etsu Astec Co., Ltd.)
*11 Merquat 2001 Polymer (manufactured by Lubrizol Japan, Ltd.)

As shown in Examples 10 to 17 in Table 2, when the component (B) cationized guar gum was contained, and when the component (C) polyquaternium-48 was contained at 0.5 to 3% by weight, satisfactory results were obtained in all items. In addition, when the component (B) cationized guar gum was contained at 0.05 to 2% by weight, and when the component (C) polyquaternium-48 was contained at 1 to 2% by weight, particularly excellent results were obtained. On the other hand, as shown in Comparative Examples 3 and 4, when polyquaternium-10 or hydroxypropyl methylcellulose was used instead of cationized guar gum (B), satisfactory results were not obtained in the items of finger slippage and non-squeakiness. In addition, as shown in Comparative Example 5, when the component (C) polyquaternium-48 was contained at less than 0.5% by weight, satisfactory results were not obtained in the items of firmness and elasticity, and when the component (C) was contained at more than 3% by weight, satisfactory results were not obtained in the items of finger slippage, non-squeakiness, and stickiness. Furthermore, as shown in Comparative Example 7, when (C) polyquaternium-47 was used instead of polyquaternium-48, satisfactory results were not obtained in terms of firmness and stickiness.

*12 Silicone KF96H-1 million CS (manufactured by Shin-Etsu Chemical Co., Ltd.)
*13 Silicone KF96-5000CS (Shin-Etsu Chemical Co., Ltd.)
*14 SH200 C Fluid 30CS (manufactured by Dow Toray Industries, Inc.)
*15 Silicone KF96-1000CS (Shin-Etsu Chemical Co., Ltd.)

As shown in Examples 18 to 29 in Table 3, when the weight ratio (E)/(D) of the component (D) high-polymerized silicone and the component (E) low-viscosity silicone was 1.5 to 2.1, satisfactory results were obtained in all items. In addition, when the high-polymerized silicone with a kinetic viscosity of 50,000 to 300,000 mm ² /s and the low-viscosity silicone with a kinetic viscosity of 200 to 400 mm ² /s were contained such that the (E)/(D) value was 1.7 to 1.9, particularly excellent results were obtained. On the other hand, as shown in Comparative Example 8, when the (E)/(D) value was greater than 2.1, satisfactory results were not obtained in the items of finger slippage and stickiness, and as shown in Comparative Example 9, when the (E)/(D) value was less than 1.5, satisfactory results were not obtained in the items of firmness and moisturization. Furthermore, as shown in Comparative Example 10, when a highly polymerized silicone with a kinetic viscosity of 5,000 ^mm2 /s was contained, satisfactory results were not obtained in terms of finger slippage and lack of squeaking, and as shown in Comparative Example 11, when a low-viscosity silicone with a kinetic viscosity of 1,000 ^mm2 /s was contained, satisfactory results were not obtained in terms of moist feeling.

Next, other examples of the present invention are presented. In each case, satisfactory results were obtained in the same evaluation items.

Example 30: Hair conditioning composition 1
(Components) (% by weight)
(1) Stearyltrimonium chloride*1 1.5
(2) Behentrimonium chloride *16 1.0
(3) Behenyl alcohol *17 5.0
(4) Squalane 3.0
(5) Guar hydroxypropyltrimonium chloride *5 0.1
(6) 1,3-butylene glycol 5.0
(7) Polyquaternium-48 *6 2.0
(8) Highly polymerized silicone *7 1.2
(9) Low viscosity silicone *8 2.1
(10) Fragrance Appropriate amount (11) Purified water Remainder *16 NIKKOL CA-2580 (manufactured by Nikko Chemicals Co., Ltd.)
*17 Behenyl alcohol (manufactured by Kokyu Alcohol Kogyo Co., Ltd.)
(Production method)
Components (1) to (4) were dissolved by heating, and a heated aqueous phase containing components (5), (6), and (11) was added and emulsified, and then components (7) to (9) were added and dispersed using a homomixer. During cooling, component (10) was added, thereby obtaining hair conditioning composition 1.

Example 31: Hair conditioning composition 2
(Components) (% by weight)
(1) Behentrimonium chloride *16 3.0
(2) Cetyl alcohol *2 4.0
(3) Hydrogenated polyisobutene 1.0
(4) Mineral oil *3 1.0
(5) Glycerin 4.0
(6) Guar hydroxypropyltrimonium chloride *5 0.8
(7) Polyquaternium-48 *6 2.0
(8) Highly polymerized silicone *7 1.2
(9) Low viscosity silicone *8 2.1
(10) Flavor appropriate amount (11) Phenoxyethanol appropriate amount (12) Purified water remainder (manufacturing method)
Components (1) to (4) were dissolved by heating, and then a heated aqueous phase containing components (5), (6), and (12) was added and emulsified. Components (7) to (9) were then added and dispersed using a homomixer. During cooling, components (10) and (11) were added, thereby obtaining hair conditioning composition 2.

Example 32: Hair conditioning composition 3
(Components) (% by weight)
(1) Stearyltrimonium chloride*1 3.0
(2) Stearyl alcohol *18 4.0
(3) Behenyl alcohol *17 2.0
(4) Mineral oil 3.0
(5) Guar hydroxypropyltrimonium chloride *5 0.1
(6) Glycerin 3.0
(7) 1,2-pentanediol 2.0
(8) Polyquaternium-48 *6 2.0
(9) Highly polymerized silicone *7 1.2
(10) Low viscosity silicone *8 2.1
(11) Fragrance Appropriate amount (12) Purified water Remainder *18 Stearyl alcohol NX (manufactured by Kokyu Alcohol Kogyo Co., Ltd.)
(Production method)
Components (1) to (4) were dissolved by heating, and then an aqueous phase containing heated components (5) to (7) and component (12) was added and emulsified, and then components (8) to (10) were added and dispersed using a homomixer, and component (11) was added during cooling, thereby obtaining hair conditioning composition 3.

Example 33: Hair conditioning composition 4
(Components) (% by weight)
(1) Stearyltrimonium chloride*1 1.5
(2) Behentrimonium chloride *16 1.5
(3) Behenyl alcohol *17 1.0
(4) Cetyl alcohol *2 4.0
(5) Mineral oil *3 1.0
(6) Hydrogenated polyisobutene 1.0
(7) Squalane 1.0
(8) Guar hydroxypropyltrimonium chloride *5 0.3
(9) Glycerin 5.0
(10) 1,3-butylene glycol 2.0
(11) Methylparaben Appropriate amount (12) Polyquaternium-48*6 2.0
(13) Highly polymerized silicone *7 0.6
(14) Highly polymerized silicone *19 0.6
(15) Low viscosity silicone *8 0.6
(16) Low viscosity silicone *14 1.5
(17) Fragrance Appropriate amount (18) Purified water Balance *19 BELSIL GB 5150 (manufactured by Wacker Asahi Kasei Silicone Co., Ltd.) (Highly polymerized methylpolysiloxane: 20%)
(Production method)
Components (1) to (7) were dissolved by heating, and an aqueous phase containing heated components (8) to (11) and component (16) was added and emulsified, and then components (12) to (16) were added and dispersed using a homomixer. During cooling, component (17) was added, thereby obtaining hair conditioning composition 4.

According to the present invention, it is possible to provide a hair conditioning composition that has good finger smoothness and moist feeling even without containing an amino-modified silicone, and can impart a bouncy feel to hair without impairing the hair conditioning effect.

Claims (4)

The composition contains 0.5 to 4% by weight of a cationic surfactant and a higher alcohol having 16 to 22 carbon atoms in a weight ratio of (higher alcohol having 16 to 22 carbon atoms)/(cationic surfactant)=1 to 3,
The following components (A) to (E):
(A) Oil that is liquid at 25°C, excluding silicone oil (B) Cationic guar gum (C) Polyquaternium-48 0.5 to 3% by weight
A hair conditioning composition comprising: (D) a highly polymerized silicone having a kinetic viscosity of 10,000 mm ² /s or more at 25°C and having no amino group; (E) a low-viscosity silicone having a kinetic viscosity of 500 mm ² /s or less at 25°C and having no amino group; wherein the weight ratio (E)/(D) of component (D) to component (E) is 1.5 to 2.1; and wherein the composition does not contain any silicone having an amino group. The hair conditioning composition according to claim 1, in which the content of component (A) oil that is liquid at 25°C, excluding silicone oil, is 0.05 to 4% by weight. The hair conditioning composition according to claim 1 or 2, in which the content of component (B) cationic guar gum is 0.05 to 2% by weight. The hair conditioning composition according to any one of claims 1 to 3, wherein the total content of component (D) a high polymerized silicone having no amino group and a kinetic viscosity at 25°C of 10,000 mm ² /s or more and component (E) a low viscosity silicone having no amino group and a kinetic viscosity at 25°C of 500 mm ² /s or less is 2 to 5% by weight.