JP7592289B2 - Hair treatment composition - Google Patents

Description

The present invention relates to a hair treatment composition, and in particular to a hair treatment composition that is transparent in appearance.

Cosmetics are often required to have a good product appearance, and the product containers are designed to have a wide variety of shapes and colors. As the appearance of cosmetics becomes more diverse, cosmetic compositions are sometimes required to be colorless and transparent or colored and transparent.

Rinse-off type hair treatment compositions, also known as hair conditioners and hair treatments, which are one type of cosmetic composition, contain cationic surfactants, higher alcohols, oily components, and water, and are generally cream- or milk-like emulsion compositions. However, as the appearance of hair treatment compositions becomes more diverse, they are sometimes required to be colorless and transparent or colored and transparent, and it is difficult to achieve a transparent appearance with the components that make up the emulsion composition.

Patent Document 1 discloses a hair treatment composition that contains one or more oily components selected from vegetable oils, waxes, hydrocarbons, ester oils, and fatty acids, a nonionic surfactant, a specific cationic surfactant, a dihydric to tetrahydric alcohol, and water, and that has a transparent appearance and imparts softness to hair. Patent Document 2 discloses a hair treatment composition that contains water, a silicone microemulsion, a copolymer of ethylene glycol and propylene glycol, and a thickener, and that has a transparent appearance and prevents hair from feeling too soft or greasy. Patent Document 3 discloses a hair treatment composition that contains a specific surfactant, an ethylene oxide adduct of 1,2-dodecanediol, and water, and that has a transparent appearance and imparts smoothness during rinsing and a moist feeling after drying.

JP 2011-6368 A Special Publication No. 2011-513454 JP 2009-132625 A

However, since Patent Document 1 contains a large amount of nonionic surfactant, there is a risk of squeakiness during rinsing and stickiness after drying. Patent Document 2 contains a large amount of ethylene glycol and propylene glycol copolymer for transparency and foam suppression, so there is a risk of squeakiness during rinsing. Patent Document 3 contains fewer oily components compared to the cationic surfactant, so there is a risk of squeakiness when the hair treatment composition is applied to hair, rinsed, and then dried.

As mentioned above, in Patent Documents 1, 2, and 3, it was difficult to provide a hair treatment composition that is transparent in appearance, suppresses squeaking during rinsing and drying, and gives hair a soft, non-sticky, fluffy feel.

The objective of the present invention is to provide a hair treatment composition that is transparent in appearance, suppresses squeaking during rinsing and drying, and provides an excellent fluffy feel after drying.

The inventors have discovered that a hair treatment composition having a transparent appearance, which is characterized by containing (A) a modified silicone having an HLB of 10 or more, (B) a dimethyldiallylammonium chloride-acrylic acid copolymer, and (C) a cationic surfactant, can be obtained, which is a hair treatment composition having a transparent appearance, which suppresses squeaking during rinsing and drying, and which provides an excellent fluffy feeling after drying, and have completed the present invention.

The present invention provides a hair treatment composition that is transparent in appearance, suppresses squeaking during rinsing and drying, and provides an excellent fluffy feel after drying.

The present invention is described in detail below.

The present invention is a hair treatment composition that is transparent in appearance and contains (A) a modified silicone having an HLB of 10 or more, (B) a dimethyldiallylammonium chloride-acrylic acid copolymer, and (C) a cationic surfactant.

The present invention contains (A) modified silicone with an HLB of 10 or more from the viewpoint of preventing squeaking during rinsing and drying.

The HLB of the component (A) used in the present invention is an index showing the hydrophilic-lipophilic balance, and there are various methods for measuring it. Here, it is calculated using either the "Griffin method" or the "method based on actual measurements" described in "Handbook - Cosmetics and Pharmaceutical Raw Materials - Revised Edition, Nikko Chemicals Co., Ltd., 1977, pages 854-855." "HLB of 10 or more" means that the HLB is 10 or more according to either the "Griffin method" or the "method based on actual measurements."

The HLB of the component (A) used in the present invention is 10 or more, and from the viewpoint of a fluffy feeling after drying, it is preferably 13 or more, and more preferably 14.5 or more. If the HLB of the component (A) is less than 10, the appearance of the hair treatment composition will not be transparent.

The component (A) used in the present invention has an organopolysiloxane main chain and at least one hydrophilic group selected from a polyoxyalkylene group, a glycerin group, and a polyglycerin group. The position of the hydrophilic group relative to the silicon chain is at least one selected from side chain type modification, block type modification, and terminal type modification. In addition to the hydrophilic group, the component (A) may have at least one selected from an organopolysiloxane group, a hydrocarbon group, and an amino group, but the component (A) used in the present invention does not include a crosslinked polymer. The component (A) may contain at least one type.

Among the components (A) used in the present invention, the side chain type is preferred from the viewpoint of suppressing odor changes over time, and among these, the side chain type having a polyoxyalkylene group as the hydrophilic group is preferred.

Of the (A) components used in the present invention, the side chain type having the polyoxyalkylene group is not particularly limited, but examples include polyoxyethylene-methylpolysiloxane copolymer, poly(oxyethylene-oxypropylene)-methylpolysiloxane copolymer, etc.

Commercially available polyoxyethylene-methylpolysiloxane copolymers for use in the present invention include BELSIL DMC 6038 (manufactured by Asahi Kasei Wacker Silicone Co., Ltd.) (HLB: 15.5), KF-6011 (manufactured by Shin-Etsu Chemical Co., Ltd.) (HLB: 14.5), KF-6011P (manufactured by Shin-Etsu Chemical Co., Ltd.) (HLB: 14.5), KF-6013 (manufactured by Shin-Etsu Chemical Co., Ltd.) (HLB: 10), KF-6043 (manufactured by Shin-Etsu Chemical Co., Ltd.) (HLB: 14.5), DOWSIL SH 3771M (manufactured by Dow Corning Toray Co., Ltd.) (HLB: 13), DOWSIL SS-2802 (manufactured by Dow Corning Toray Co., Ltd.) (HLB: 13), DOWSIL Examples of commercially available poly(oxyethylene-oxypropylene) methylpolysiloxane copolymers used in the present invention include SS-2804 (manufactured by Dow Corning Toray Co., Ltd.) (HLB: 13). Examples of commercially available poly(oxyethylene-oxypropylene) methylpolysiloxane copolymers used in the present invention include BELSIL DMC 6031 (manufactured by Wacker Asahi Kasei Silicone Co., Ltd.) (HLB: 11.5).

The content of the component (A) used in the present invention is preferably 0.1 to 5% by mass, more preferably 0.5 to 5% by mass, and even more preferably 1.5 to 5% by mass. If the content of the component (A) is less than 0.1% by mass, there is a risk of squeaking during rinsing and drying. If the content of the component (A) is more than 5% by mass, the hair treatment composition may develop an unpleasant odor over time.

The present invention contains (B) dimethyldiallylammonium chloride/acrylic acid copolymer from the viewpoints of preventing squeaking during rinsing and providing a fluffy feel after drying.

Commercially available products of the dimethyldiallylammonium chloride-acrylic acid copolymer used in the present invention include MERQUAT™ 280NP POLYMER (manufactured by Lubrizol Advanced Materials), MERQUAT™ 295 POLYMER (manufactured by Lubrizol Advanced Materials), COSMOTE V-22F (manufactured by Senka), COSMOTE V-22GL (manufactured by Senka), and FLOCARE C122 PF (manufactured by SNF).

The content of the (B) component used in the present invention is preferably 0.05 to 1 mass%, more preferably 0.1 to 0.8 mass%, and even more preferably 0.2 to 0.6 mass%. If the (B) component is less than 0.05 mass%, there is a risk that squeaks may occur during rinsing and that the hair may not become fluffy after drying. If the (B) component is more than 1 mass%, there is a risk that squeaks may occur during drying and that the hair may not become fluffy after drying.

The present invention contains a cationic surfactant (C) from the viewpoints of no squeaking during rinsing, no squeaking during drying, and a fluffy feel after drying.

The component (C) used in the present invention is not particularly limited, but examples thereof include lauryl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, behenyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, etc. The component (C) may contain one or more types.

Among the components (C) used in the present invention, lauryltrimethylammonium chloride and cetyltrimethylammonium chloride are preferred from the viewpoint of fluffy feeling after drying, and among these, lauryltrimethylammonium chloride is preferred.

Commercially available products of the lauryl trimethyl ammonium chloride used in the present invention include Catinal LTC-35A (manufactured by Toho Chemical Industry Co., Ltd.), NIKKOL CA-2150 (manufactured by Nippon Surfactant Industry Co., Ltd.), etc. Commercially available products of the cetyl trimethyl ammonium chloride used in the present invention include Catinal CTC-70ET (manufactured by Toho Chemical Industry Co., Ltd.), NIKKOL CA-2350E (manufactured by Nippon Surfactant Industry Co., Ltd.), and Levon TM-16 (manufactured by Sanyo Chemical Industries Co., Ltd.), etc.

The content of the (C) component used in the present invention is preferably 0.05 to 3 mass%, more preferably 0.1 to 1.5 mass%, and even more preferably 0.2 to 0.7 mass%. If the (C) component is less than 0.05 mass%, there is a risk of creaking during rinsing, creaking during drying, and a lack of fluffy feeling after drying. If the (C) component is more than 3 mass%, there is a risk of creaking during drying.

The hair treatment composition of the present invention has a transparent appearance. The transparent appearance does not interfere with the design of the product container in which the hair treatment composition is filled, and can be used in a variety of designs.

In the present invention, the term "transparent appearance" can be judged qualitatively by visual inspection. Specifically, a hair treatment composition prepared by a conventional method is left to stand for 2 hours at 20°C, then placed in a glass container (IWAKI 1000BK10000: manufactured by AGC Technoglass Co., Ltd.), and the appearance is considered to be transparent when 8-point letters placed on the back of the glass container can be read with the naked eye. If the 8-point letters can be read with the naked eye, the hair treatment composition may have a color.

The viscosity of the hair treatment composition according to the present invention at 20°C is not particularly limited, but from the viewpoint of ease of application to hair, it is preferably from 20 mPa·s to less than 2,000 mPa·s, more preferably from 100 mPa·s to less than 1,000 mPa·s, and even more preferably from 200 mPa·s to less than 600 mPa·s. When the viscosity at 20°C is from 20 mPa·s to less than 2,000 mPa·s, the hair treatment composition is easy to blend into the hair even if it is applied directly to the hair without being dispensed into the hands.

The viscosity of the hair treatment composition according to the present invention at 20°C was measured by filling 130 mL of the hair treatment composition prepared by the usual method into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at 20°C for 2 hours, and then measuring the viscosity at 20°C for 1 minute using a B-type viscometer with a helical stand (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) at 60 rpm for 1 minute using an M1 rotor if the viscosity was 1 mPa·s or more but less than 100 mPa·s, or at 30 rpm for 1 minute using an M2 rotor if the viscosity was 100 mPa·s or more but less than 1,000 mPa·s. rpm for 1 minute, if the viscosity is 1,000 mPa·s or more but less than 2,000 mPa·s, it is measured at 60 rpm for 1 minute using an M3 rotor, if the viscosity is 2,000 mPa·s or more but less than 4,000 mPa·s, it is measured at 30 rpm for 1 minute using an M3 rotor, if the viscosity is 4,000 mPa·s or more but less than 20,000 mPa·s, it is measured at 30 rpm for 1 minute using an M4 rotor, and if the viscosity is 20,000 mPa·s or more but less than 50,000 mPa·s, it is measured at 12 rpm for 1 minute using an M4 rotor.

The pH of the hair treatment composition of the present invention at 20°C is not particularly limited, but is preferably 3.5 to 7.5, more preferably 4.0 to 7.0, and even more preferably 4.5 to 6.5.

The pH of the hair treatment composition of the present invention at 20°C was measured by filling 130 mL of the hair treatment composition prepared by the usual method into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at 20°C for 2 hours, and then measuring the pH of the original solution using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The properties of the hair treatment composition according to the present invention are not particularly limited, but it is preferably liquid from the viewpoint of being easily absorbed even when the hair treatment composition is applied directly to the hair without being dispensed onto the hands.

The hair treatment composition according to the present invention is filled into various containers, including but not limited to bottle containers and pouch containers, and stored until use.

The hair treatment composition according to the present invention can be dispensed using a variety of mechanisms, including, but not limited to, a pump dispenser, mist dispenser, pointed cap, one-touch cap, and aerosol.

The hair treatment composition of the present invention may contain, in addition to the above-mentioned components, ingredients commonly used in cosmetics, such as surfactants other than component (C), pH adjusters, metal sequestering agents, film-forming agents, UV absorbers, fragrances, antioxidants, preservatives, alcohols, moisturizers, cooling agents, thickeners, vitamins, plant extracts, silicone oils other than component (A), oily ingredients other than silicone oils, protein hydrolysates, colorants, etc., within the range that does not impair the effects of the present invention, and may contain one or more of these.

The present invention will be described in more detail below with reference to examples, but these are not intended to limit the present invention in any way.

In the evaluation tests shown in this specification, the components contained in the hair treatment composition and their contents were varied. The units showing the contents of each component are all mass %, and the contents of each component are all pure contents, which were prepared by conventional methods. The HLB values shown in the examples and comparative examples in this specification are the HLB values obtained by the "Griffin method."

In the evaluation tests shown in this specification, "absence of squeaking when rinsing," "absence of squeaking when drying with a hair dryer," and "fluffiness after drying" were evaluated using the following methods.

"No squeaking when rinsing"
Twenty panelists wetted the hair of a hair test doll (100% human black hair, manufactured by Bealux, model number: Queen Cut No. 775N) with water, applied 5 g of the following hair cleansing composition in a conventional manner, and rinsed it off with lathered water. Then, 15 g of each liquid hair treatment composition obtained in the Examples and Comparative Examples was evenly applied to the hair of the hair test doll at 25°C, and thoroughly rinsed while combing the hair until no residual rinsing was felt, and the absence of squeaking during rinsing was evaluated sensorily on a five-point scale of 5 points (very good), 4 points (good), 3 points (normal), 2 points (bad), and 1 point (very bad), and the average score of all panelists was calculated, and then the evaluation was made according to the following average score evaluation criteria.
(Average score criteria)
4.0 points or more: 5
3.5 points or more and less than 4.0 points: 4
3.0 points or more and less than 3.5 points: 3
2.0 points or more and less than 3.0 points: 2
Less than 2.0 points: 1

Hair cleansing composition component content (mass%)
Polyoxyethylene alkyl (12,13)
Sodium ether sulfate (3E.O.) 6.00
Sodium lauroylmethyl-β-alanine 3.00
Lauryl amidopropyl betaine 6.00
Citric acid 0.60
Purified water 84.40
Total 100.00
pH (20℃): 5.8

"No squeaking when drying with a hair dryer"
Twenty panelists thoroughly dried the hair of the hair test doll (100% human black hair, manufactured by Beaulax, model number: Queen Cut No. 775N) used for evaluating the "freedom of squeaking when rinsing" with a hair dryer while running their fingers through the hair, and evaluated the freeness of squeaking when dried with a hair dryer using a sensory scale of 5 points (very good), 4 points (good), 3 points (average), 2 points (poor), and 1 point (very poor). The average score of all panelists was calculated, and then the average score was judged according to the following average score judging criteria.
(Average score criteria)
4.0 points or more: 5
3.5 points or more and less than 4.0 points: 4
3.0 points or more and less than 3.5 points: 3
2.0 points or more and less than 3.0 points: 2
Less than 2.0 points: 1

Soft feeling after drying
Twenty panelists touched the hair of the hair test doll (100% human black hair, manufactured by Bealux, model number: Queen Cut No. 775N) that had been used to evaluate the "absence of squeaking when dried with a hair dryer" and sensually evaluated the fluffiness after drying on a 5-point scale of 5 points (very good), 4 points (good), 3 points (average), 2 points (poor), and 1 point (very poor). They then calculated the average score of all panelists and judged the hair according to the average score judging criteria below.
(Average score criteria)
4.0 points or more: 5
3.5 points or more and less than 4.0 points: 4
3.0 points or more and less than 3.5 points: 3
2.0 points or more and less than 3.0 points: 2
Less than 2.0 points: 1

"exterior"
The liquid hair treatment compositions obtained in the Examples and Comparative Examples were evaluated by the method described in [0030] above.
(Judgment criteria)
Possible: Transparent
Impossible: Cloudy

"viscosity"
The viscosity of each liquid hair treatment composition obtained in the Examples and Comparative Examples was measured by the method described in [0032] above.

The raw materials used in the above examples and comparative examples are shown below.
*1: KF-6043 (manufactured by Shin-Etsu Chemical Co., Ltd.)
*2: DOWSIL SS-2802 (manufactured by Dow Corning Toray Co., Ltd.)
*3: KF-6013 (manufactured by Shin-Etsu Chemical Co., Ltd.)
*4: KF-6012 (manufactured by Shin-Etsu Chemical Co., Ltd.)
*5: MERQUAT(TM) 280NP POLYMER (manufactured by Lubrizol Advanced Materials)
*6: Catinal LTC-35A (manufactured by Toho Chemical Industry Co., Ltd.)
*7: Catinal HC-200 (manufactured by Toho Chemical Co., Ltd.)
*8: MERQUAT™ PLUS 3330 POLYMER (manufactured by Lubrizol Advanced Materials)
*9: Catinal CTC-70ET (manufactured by Toho Chemical Co., Ltd.)
*10: Catinal STC-70ET (manufactured by Toho Chemical Co., Ltd.)

From Examples 1 to 20 shown in Tables 1, 2 and 3, it was confirmed that good results were obtained in terms of "absence of squeaking when rinsing," "absence of squeaking when drying with a hair dryer," and "fluffy feeling after drying."

When various tests were conducted using the liquid hair treatment composition obtained in Example 21, the results were favorable in all areas: "absence of squeaking when rinsing," "absence of squeaking when drying with a hair dryer," and "fluffy feeling after drying."

Example 21
Component Content (mass%)
(A) Polyoxyethylene-methylpolysiloxane copolymer (HLB=14.5) 3.00
(B) Dimethyldiallylammonium chloride-acrylic acid copolymer 0.33
(C) Lauryltrimethylammonium chloride 0.35
1,3-butylene glycol 27.00
Ethanol 2.00
Polyoxyethylene polyoxypropylene decyl tetradecyl ether 1.20
Hydrolyzed silk 0.01
Citric acid 0.02
Trisodium citrate 0.10
Glycerin 0.50
O-[2-hydroxy-3-(trimethylammonio)propyl] chloride
Hydroxyethyl cellulose 0.40
O-[2-hydroxy-3-(trimethylammonio)propyl] chloride
Guar gum 0.25
Dimethyldiallylammonium chloride/acrylamide copolymer 0.01
Methyl parahydroxybenzoate 0.20
Disodium edetate 0.05
Peach Leaf Extract 0.01
Peach fruit extract 0.01
Peach kernel oil 0.01
Fragrance 0.35
Purified water 64.20
Total 100.00
Appearance: transparent Viscosity (20°C): 600 mPa·s
pH (20℃): 5.5

The present invention makes it possible to obtain a hair treatment composition that is transparent in appearance, suppresses squeaking during rinsing and drying, and provides an excellent fluffy feel after drying.

Claims (1)

A hair treatment composition having a transparent appearance, comprising (A) a modified silicone having an HLB of 10 or more, (B) a dimethyldiallylammonium chloride-acrylic acid copolymer, and (C) lauryltrimethylammonium chloride, the content of said component (C) being 0.1 to 1.5 mass% .